hqlcpp.cpp 410 KB

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  1. /*##############################################################################
  2. HPCC SYSTEMS software Copyright (C) 2012 HPCC Systems.
  3. Licensed under the Apache License, Version 2.0 (the "License");
  4. you may not use this file except in compliance with the License.
  5. You may obtain a copy of the License at
  6. http://www.apache.org/licenses/LICENSE-2.0
  7. Unless required by applicable law or agreed to in writing, software
  8. distributed under the License is distributed on an "AS IS" BASIS,
  9. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  10. See the License for the specific language governing permissions and
  11. limitations under the License.
  12. ############################################################################## */
  13. #include "platform.h"
  14. #include <algorithm>
  15. #include "jliball.hpp"
  16. #include "jlib.hpp"
  17. #include "jexcept.hpp"
  18. #include "jmisc.hpp"
  19. #include "javahash.hpp"
  20. #include "jmd5.hpp"
  21. #include "jfile.hpp"
  22. #include "eclhelper.hpp"
  23. #include "hql.hpp"
  24. #include "hqlfunc.hpp"
  25. #include "hqlattr.hpp"
  26. #include "hqlcpp.ipp"
  27. #include "hqlwcpp.hpp"
  28. #include "hqlcpputil.hpp"
  29. #include "hqlres.hpp"
  30. #include "hqlerror.hpp"
  31. #include "hqlcerrors.hpp"
  32. #include "hqlcatom.hpp"
  33. #include "hqlpmap.hpp"
  34. #include "hqlthql.hpp"
  35. #include "hqlfold.hpp"
  36. #include "eclrtl.hpp"
  37. #include "hqllib.ipp"
  38. #include "hqlnlp.ipp"
  39. #include "hqlutil.hpp"
  40. #include "hqltcppc.ipp"
  41. #include "hqlttcpp.ipp"
  42. #include "hqlccommon.hpp"
  43. #include "hqlopt.hpp"
  44. #include "hqlpopt.hpp"
  45. #include "hqlcse.ipp"
  46. #include "thorplugin.hpp"
  47. #include "hqlinline.hpp"
  48. #include "hqlusage.hpp"
  49. #ifdef _DEBUG
  50. //#define ADD_ASSIGNMENT_COMMENTS
  51. //#define ADD_RESOURCE_AS_CPP_COMMENT
  52. #endif
  53. //Defaults for various options.
  54. #define COMPLEXITY_TO_HOIST 2
  55. #define INLINE_COMPARE_THRESHOLD 2 //7 // above this, a loop is generated
  56. #define MAX_NESTED_CASES 8
  57. #define MAX_SIMPLE_VAR_SIZE 99999
  58. #define MAX_STATIC_ROW_SIZE 10000
  59. #define MAX_LOCAL_ROW_SIZE 32
  60. #define DEFAULT_NLP_DETAIL 1
  61. #define DEFAULT_EXPIRY_PERIOD 7
  62. #define DEFAULT_PERSIST_EXPIRY_PERIOD 0 // Persists that expire by default have a period defined in sasha
  63. #ifdef _WIN32
  64. #define DEFAULT_ACTIVITIES_PER_CPP 800 // windows compiler is fast, linker is slow, but compiler also has quite a small compile limit
  65. #else
  66. #define DEFAULT_ACTIVITIES_PER_CPP 500 // gcc assembler is v.slow
  67. #endif
  68. //MORE: Simple vars don't work if they are made class members...
  69. //#define SEARCH_VARIABLE "v211"
  70. //===========================================================================
  71. static CriticalSection * systemCS;
  72. static IHqlScope * cppSystemScope;
  73. //===========================================================================
  74. MODULE_INIT(INIT_PRIORITY_STANDARD)
  75. {
  76. systemCS = new CriticalSection;
  77. return true;
  78. }
  79. MODULE_EXIT()
  80. {
  81. ::Release(cppSystemScope);
  82. cppSystemScope = NULL;
  83. delete systemCS;
  84. }
  85. //---------------------------------------------------------------------------
  86. class SubStringInfo : public SubStringHelper
  87. {
  88. public:
  89. SubStringInfo(IHqlExpression * _expr) : SubStringHelper(_expr) { expr = _expr; }
  90. void bindToFrom(HqlCppTranslator & translator, BuildCtx & ctx);
  91. public:
  92. IHqlExpression * expr;
  93. CHqlBoundExpr boundFrom;
  94. CHqlBoundExpr boundTo;
  95. };
  96. void SubStringInfo::bindToFrom(HqlCppTranslator & translator, BuildCtx & ctx)
  97. {
  98. if (to && to->isAttribute())
  99. throwError(HQLERR_StarRangeOnlyInJoinCondition);
  100. if (from == to)
  101. {
  102. if (from)
  103. {
  104. translator.buildSimpleExpr(ctx, from, boundFrom);
  105. boundTo.expr.set(boundFrom.expr);
  106. }
  107. }
  108. else
  109. {
  110. if (from)
  111. translator.buildCachedExpr(ctx, from, boundFrom);
  112. if (to)
  113. translator.buildCachedExpr(ctx, to, boundTo);
  114. }
  115. }
  116. //---------------------------------------------------------------------------
  117. WorkflowItem::WorkflowItem(IHqlExpression * _function) : wfid(0), function(_function)
  118. {
  119. IHqlExpression * body = function->queryChild(0);
  120. assertex(body->getOperator() == no_outofline);
  121. IHqlExpression * ecl = body->queryChild(0);
  122. exprs.append(*createValue(no_return_stmt, makeVoidType(), LINK(ecl)));
  123. }
  124. IHqlExpression * WorkflowItem::getFunction() const
  125. {
  126. IHqlExpression * body = function->queryChild(0);
  127. unsigned max = exprs.ordinality();
  128. assertex(max);
  129. LinkedHqlExpr newecl = exprs.item(max-1).queryChild(0);
  130. for (unsigned i=max-1; i--; )
  131. {
  132. IHqlExpression * cur = &exprs.item(i);
  133. newecl.setown(createCompound(LINK(cur), newecl.getClear()));
  134. }
  135. OwnedHqlExpr newBody = replaceChild(body, 0, newecl);
  136. return replaceChild(function, 0, newBody);
  137. }
  138. //---------------------------------------------------------------------------
  139. IHqlExpression * DatasetReference::querySelector() const
  140. {
  141. if (side == no_none)
  142. return ds->queryNormalizedSelector();
  143. return selector;
  144. }
  145. IHqlExpression * DatasetReference::querySelSeq() const
  146. {
  147. if (side == no_none)
  148. return NULL;
  149. return selector->queryChild(1);
  150. }
  151. IHqlExpression * DatasetReference::mapCompound(IHqlExpression * expr, IHqlExpression * to) const
  152. {
  153. return replaceSelector(expr, querySelector(), to);
  154. }
  155. IHqlExpression * DatasetReference::mapScalar(IHqlExpression * expr, IHqlExpression * to) const
  156. {
  157. return replaceSelector(expr, querySelector(), to);
  158. }
  159. //---------------------------------------------------------------------------
  160. IHqlExpression * createVariable(ITypeInfo * type)
  161. {
  162. StringBuffer tempName;
  163. getUniqueId(tempName.append('v'));
  164. #ifdef _DEBUG
  165. #ifdef SEARCH_VARIABLE
  166. if (stricmp(tempName.str(), SEARCH_VARIABLE)==0)
  167. type = type;
  168. #endif
  169. #endif
  170. return ::createVariable(tempName.str(), type);
  171. }
  172. IHqlExpression * convertWrapperToPointer(IHqlExpression * expr)
  173. {
  174. ITypeInfo * type = expr->queryType();
  175. if (hasWrapperModifier(type))
  176. return createValue(no_implicitcast, makeReferenceModifier(removeModifier(type, typemod_wrapper)), LINK(expr));
  177. return LINK(expr);
  178. }
  179. IHqlExpression * ensureIndexable(IHqlExpression * expr)
  180. {
  181. ITypeInfo * type = expr->queryType();
  182. if (type->getTypeCode() == type_data)
  183. {
  184. IHqlExpression * base = queryStripCasts(expr);
  185. return createValue(no_implicitcast, makeReferenceModifier(makeStringType(type->getSize(), NULL, NULL)), LINK(base));
  186. }
  187. return convertWrapperToPointer(expr);
  188. }
  189. void extendConjunctionOwn(HqlExprAttr & cond, IHqlExpression * next)
  190. {
  191. if (cond)
  192. next = createBoolExpr(no_and, cond.getClear(), next);
  193. cond.setown(next);
  194. }
  195. inline bool isPushed(const IHqlExpression * expr)
  196. {
  197. return (expr->getOperator() == no_decimalstack);
  198. }
  199. inline bool isPushed(const CHqlBoundExpr & bound)
  200. {
  201. return isPushed(bound.expr);
  202. }
  203. bool isSimpleTranslatedStringExpr(IHqlExpression * expr)
  204. {
  205. loop
  206. {
  207. node_operator op = expr->getOperator();
  208. switch (op)
  209. {
  210. case no_constant:
  211. case no_variable:
  212. case no_callback:
  213. return true;
  214. case no_cast:
  215. case no_implicitcast:
  216. case no_typetransfer:
  217. case no_deref:
  218. case no_address:
  219. expr = expr->queryChild(0);
  220. break;
  221. case no_add:
  222. case no_sub:
  223. if (!isSimpleTranslatedStringExpr(expr->queryChild(1)))
  224. return false;
  225. expr = expr->queryChild(0);
  226. break;
  227. default:
  228. return false;
  229. }
  230. }
  231. }
  232. bool isSimpleTranslatedExpr(IHqlExpression * expr)
  233. {
  234. switch (expr->queryType()->getTypeCode())
  235. {
  236. case type_data:
  237. case type_string:
  238. case type_qstring:
  239. case type_varstring:
  240. case type_decimal:
  241. case type_unicode:
  242. case type_varunicode:
  243. //Less strict rules for strings (and decimal), because string temporaries are more expensive.
  244. return isSimpleTranslatedStringExpr(expr);
  245. case type_set:
  246. //for the moment assume set expressions are always simple once translated.
  247. return true;
  248. }
  249. loop
  250. {
  251. node_operator op = expr->getOperator();
  252. switch (op)
  253. {
  254. case no_constant:
  255. case no_variable:
  256. case no_callback:
  257. case no_nullptr:
  258. return true;
  259. case no_typetransfer:
  260. expr = expr->queryChild(0);
  261. break;
  262. default:
  263. return false;
  264. }
  265. }
  266. }
  267. bool isFixedLengthList(IHqlExpression * expr)
  268. {
  269. switch (expr->getOperator())
  270. {
  271. case no_list:
  272. case no_datasetlist:
  273. case no_sortlist:
  274. return true;
  275. }
  276. return false;
  277. }
  278. bool needVarStringCompare(ITypeInfo * leftType, ITypeInfo * rightType)
  279. {
  280. unsigned lSize = leftType->getSize();
  281. unsigned rSize = rightType->getSize();
  282. return (lSize != rSize) || (lSize == UNKNOWN_LENGTH);
  283. }
  284. IIdAtom * queryStrCompareFunc(ITypeInfo * realType)
  285. {
  286. switch (realType->getTypeCode())
  287. {
  288. case type_data:
  289. return compareDataDataId;
  290. case type_qstring:
  291. return compareQStrQStrId;
  292. }
  293. ICharsetInfo * charset = realType->queryCharset();
  294. IAtom * charsetName = charset->queryName();
  295. if (charsetName == dataAtom)
  296. return compareDataDataId;
  297. if (charsetName == asciiAtom)
  298. return compareStrStrId;
  299. if (charsetName == ebcdicAtom)
  300. return compareEStrEStrId;
  301. assertex(!"Unknown string comparison");
  302. return compareStrStrId;
  303. }
  304. IHqlExpression * getAddress(IHqlExpression * expr)
  305. {
  306. if (expr->getOperator() == no_deref)
  307. {
  308. IHqlExpression * address = expr->queryChild(0);
  309. return LINK(address);
  310. }
  311. return createValue(no_address, makePointerType(expr->getType()), LINK(expr));
  312. }
  313. IHqlExpression * getRawAddress(IHqlExpression * expr)
  314. {
  315. OwnedHqlExpr raw = getAddress(expr);
  316. loop
  317. {
  318. switch (raw->getOperator())
  319. {
  320. case no_cast:
  321. case no_implicitcast:
  322. break;
  323. default:
  324. return raw.getClear();
  325. }
  326. raw.set(raw->queryChild(0));
  327. }
  328. }
  329. IHqlExpression * getPointer(IHqlExpression * source)
  330. {
  331. if (source->getOperator() == no_constant)
  332. return LINK(source);
  333. ITypeInfo * type = source->queryType();
  334. Owned<ITypeInfo> newType;
  335. switch (type->getTypeCode())
  336. {
  337. case type_set:
  338. if (type->isReference())
  339. return LINK(source);
  340. newType.setown(makeReferenceModifier(LINK(queryUnqualifiedType(type))));
  341. if (hasWrapperModifier(type))
  342. {
  343. OwnedHqlExpr cast = createValue(no_implicitcast, LINK(newType), LINK(source));
  344. return createValue(no_typetransfer, LINK(newType), LINK(cast));
  345. }
  346. break;
  347. case type_dictionary:
  348. case type_table:
  349. case type_groupedtable:
  350. case type_row:
  351. case type_decimal:
  352. case type_string:
  353. case type_data:
  354. case type_qstring:
  355. case type_varstring:
  356. case type_unicode:
  357. case type_varunicode:
  358. case type_utf8:
  359. if (isTypePassedByAddress(type))
  360. {
  361. if (type->isReference())
  362. return LINK(source);
  363. newType.setown(makeReferenceModifier(LINK(queryUnqualifiedType(type))));
  364. if (hasLinkCountedModifier(type))
  365. newType.setown(makeAttributeModifier(newType.getClear(), getLinkCountedAttr()));
  366. if (hasWrapperModifier(type))
  367. return createValue(no_implicitcast, LINK(newType), LINK(source));
  368. //An array of X is implicitly converted to pointer to X so no need to do &a[0]
  369. return createValue(no_typetransfer, LINK(newType), LINK(source));
  370. }
  371. else
  372. {
  373. newType.setown(removeModifier(type, typemod_wrapper));
  374. if (hasWrapperModifier(type))
  375. return createValue(no_implicitcast, LINK(newType), LINK(source));
  376. return LINK(source);
  377. }
  378. break;
  379. case type_pointer:
  380. return LINK(source);
  381. default:
  382. newType.setown(makePointerType(LINK(type)));
  383. break;
  384. }
  385. IHqlExpression * cur = source;
  386. while (cur->getOperator() == no_typetransfer)
  387. cur = cur->queryChild(0);
  388. if (cur->getOperator() == no_deref)
  389. {
  390. IHqlExpression * address = cur->queryChild(0);
  391. if (address->queryType() == newType)
  392. return LINK(address);
  393. return createValue(no_implicitcast, newType.getClear(), LINK(address));
  394. }
  395. else
  396. return createValue(no_address, newType.getClear(), LINK(source));
  397. }
  398. bool isChildOf(IHqlExpression * parent, IHqlExpression * child)
  399. {
  400. unsigned max = parent->numChildren();
  401. unsigned idx;
  402. for (idx = 0; idx < max; idx++)
  403. {
  404. IHqlExpression * cur = parent->queryChild(idx);
  405. if (cur == child)
  406. return true;
  407. }
  408. return false;
  409. }
  410. bool canRemoveStringCast(ITypeInfo * to, ITypeInfo * from)
  411. {
  412. unsigned fromSize = from->getSize();
  413. unsigned toSize = to->getSize();
  414. //Special case string conversions that don't require us to copy any data.
  415. if ((toSize == UNKNOWN_LENGTH) || ((fromSize != UNKNOWN_LENGTH) && (toSize <= fromSize)))
  416. {
  417. switch (from->getTypeCode())
  418. {
  419. case type_varstring:
  420. if (toSize != UNKNOWN_LENGTH)
  421. break;
  422. //fall through
  423. case type_data:
  424. case type_string:
  425. {
  426. ICharsetInfo * srcset = from->queryCharset();
  427. ICharsetInfo * tgtset = to->queryCharset();
  428. //Data never calls a conversion function...
  429. if ((srcset == tgtset) || (to->getTypeCode() == type_data) || (from->getTypeCode() == type_data))
  430. return true;
  431. }
  432. case type_qstring:
  433. return false;
  434. }
  435. }
  436. return false;
  437. }
  438. bool isProjectedInRecord(IHqlExpression * record, IHqlExpression * expr)
  439. {
  440. unsigned max = record->numChildren();
  441. unsigned idx;
  442. for (idx = 0; idx < max; idx++)
  443. {
  444. IHqlExpression * cur = record->queryChild(idx);
  445. if (cur->queryChild(0) == expr)
  446. return true;
  447. }
  448. return false;
  449. }
  450. IHqlExpression * queryStripCasts(IHqlExpression * expr)
  451. {
  452. while ((expr->getOperator() == no_cast) || (expr->getOperator() == no_implicitcast))
  453. expr = expr->queryChild(0);
  454. return expr;
  455. }
  456. // Format the list is stored in doesn't matter, so allow constant strings to be stored by reference
  457. IHqlExpression * getOptimialListFormat(IHqlExpression * table)
  458. {
  459. if (table->isConstant() && table->getOperator() == no_list)
  460. {
  461. ITypeInfo * elemType = table->queryType()->queryChildType();
  462. if (!elemType->isReference())
  463. {
  464. switch (elemType->getTypeCode())
  465. {
  466. case type_string:
  467. case type_data:
  468. {
  469. HqlExprArray args;
  470. table->unwindList(args, no_list);
  471. return createValue(no_list, makeSetType(makeReferenceModifier(LINK(elemType))), args);
  472. }
  473. }
  474. }
  475. }
  476. return LINK(table);
  477. }
  478. bool canOptimizeAdjust(IHqlExpression * value)
  479. {
  480. ITypeInfo * type = value->queryType();
  481. switch (value->getOperator())
  482. {
  483. case no_constant:
  484. return true;
  485. case no_add:
  486. case no_sub:
  487. return value->queryChild(1)->queryValue() != NULL;
  488. }
  489. return false;
  490. }
  491. IHqlExpression * adjustValue(IHqlExpression * value, __int64 delta)
  492. {
  493. if (delta == 0)
  494. return LINK(value);
  495. ITypeInfo * type = value->queryType();
  496. switch (value->getOperator())
  497. {
  498. case no_constant:
  499. {
  500. __int64 newValue = value->queryValue()->getIntValue()+delta;
  501. if (type == sizetType)
  502. return getSizetConstant((size32_t)newValue);
  503. return createConstant(type->castFrom(true, newValue));
  504. }
  505. case no_add:
  506. {
  507. IHqlExpression * lhs = value->queryChild(0);
  508. IHqlExpression * rhs = value->queryChild(1);
  509. IValue * rhsValue = rhs->queryValue();
  510. IValue * lhsValue = lhs->queryValue();
  511. if (rhsValue)
  512. {
  513. delta += rhsValue->getIntValue();
  514. if (delta == 0)
  515. return LINK(lhs);
  516. value = lhs;
  517. }
  518. else if (lhsValue)
  519. {
  520. delta += lhsValue->getIntValue();
  521. if (delta == 0)
  522. return LINK(rhs);
  523. value = rhs;
  524. }
  525. else if (canOptimizeAdjust(rhs))
  526. return createValue(no_add, value->getType(), LINK(lhs), adjustValue(rhs, delta));
  527. break;
  528. }
  529. case no_sub:
  530. {
  531. IValue * rhsValue = value->queryChild(1)->queryValue();
  532. if (rhsValue)
  533. {
  534. IHqlExpression * lhs = value->queryChild(0);
  535. delta -= rhsValue->getIntValue();
  536. if (delta == 0)
  537. return LINK(lhs);
  538. value = lhs;
  539. }
  540. break;
  541. }
  542. case no_translated:
  543. {
  544. IHqlExpression * arg = value->queryChild(0);
  545. if (arg->queryValue())
  546. {
  547. OwnedHqlExpr newValue = adjustValue(arg, delta);
  548. return createTranslated(newValue);
  549. }
  550. break;
  551. }
  552. //optimize no_case because it is generated by a transformation of the dataset no_case
  553. case no_case:
  554. case no_mapto:
  555. {
  556. HqlExprArray args;
  557. args.append(*LINK(value->queryChild(0)));
  558. ForEachChildFrom(i, value, 1)
  559. {
  560. IHqlExpression * cur = value->queryChild(i);
  561. args.append(*adjustValue(cur, delta));
  562. }
  563. return value->clone(args);
  564. }
  565. }
  566. IHqlExpression * deltaExpr;
  567. node_operator op = no_add;
  568. if (delta < 0)
  569. {
  570. op = no_sub;
  571. delta = -delta;
  572. }
  573. if (type == sizetType || !type->isInteger())
  574. deltaExpr = getSizetConstant((size32_t)delta);
  575. else
  576. deltaExpr = createConstant(type->castFrom(true, delta));
  577. return createValue(op, LINK(type), LINK(value), deltaExpr);
  578. }
  579. IHqlExpression * adjustIndexBaseToZero(IHqlExpression * index)
  580. {
  581. return adjustValue(index, -1);
  582. }
  583. IHqlExpression * adjustIndexBaseToOne(IHqlExpression * index)
  584. {
  585. return adjustValue(index, +1);
  586. }
  587. IHqlExpression * adjustBoundIntegerValues(IHqlExpression * left, IHqlExpression * right, bool subtract)
  588. {
  589. assertex(queryUnqualifiedType(left->queryType()) == queryUnqualifiedType(right->queryType()));
  590. if (canOptimizeAdjust(left))
  591. {
  592. node_operator op = right->getOperator();
  593. switch (op)
  594. {
  595. case no_constant:
  596. {
  597. __int64 rhsValue = right->queryValue()->getIntValue();
  598. if (subtract)
  599. rhsValue = -rhsValue;
  600. return adjustValue(left, rhsValue);
  601. }
  602. case no_add:
  603. case no_sub:
  604. {
  605. IHqlExpression * rl = right->queryChild(0);
  606. IHqlExpression * rr = right->queryChild(1);
  607. if (rr->getOperator() == no_constant)
  608. {
  609. ITypeInfo * rlt = rl->queryType();
  610. ITypeInfo * rrt = rr->queryType();
  611. if (queryUnqualifiedType(rl->queryType()) == queryUnqualifiedType(rr->queryType()))
  612. {
  613. __int64 delta = rr->queryValue()->getIntValue();
  614. if (op == no_sub)
  615. delta = -delta;
  616. if (subtract)
  617. delta = -delta;
  618. OwnedHqlExpr newLeft = adjustValue(left, delta);
  619. return adjustBoundIntegerValues(newLeft, rl, subtract);
  620. }
  621. }
  622. break;
  623. }
  624. }
  625. }
  626. switch (left->getOperator())
  627. {
  628. case no_constant:
  629. if (!subtract)
  630. return adjustBoundIntegerValues(right, left, false);
  631. break;
  632. case no_add:
  633. {
  634. IHqlExpression * lr = left->queryChild(1);
  635. if (lr->getOperator() == no_constant)
  636. {
  637. OwnedHqlExpr newLeft = adjustBoundIntegerValues(left->queryChild(0), right, subtract);
  638. return adjustBoundIntegerValues(newLeft, lr, false);
  639. }
  640. break;
  641. }
  642. case no_variable:
  643. if (!subtract && (right->getOperator() == no_add) && (right->queryChild(1)->getOperator() == no_constant))
  644. {
  645. OwnedHqlExpr temp = adjustBoundIntegerValues(left, right->queryChild(0), false);
  646. return adjustBoundIntegerValues(temp, right->queryChild(1), false);
  647. }
  648. break;
  649. }
  650. return createValue(subtract ? no_sub : no_add, left->getType(), LINK(left), LINK(right));
  651. }
  652. IHqlExpression * multiplyValue(IHqlExpression * expr, unsigned __int64 value)
  653. {
  654. if (isZero(expr))
  655. return LINK(expr);
  656. ITypeInfo * type = expr->queryType();
  657. IValue * exprValue = expr->queryValue();
  658. if (exprValue && type->isInteger())
  659. return createConstant(type->castFrom(false, exprValue->getIntValue() * value));
  660. if (expr->getOperator() == no_translated)
  661. {
  662. IHqlExpression * translated = expr->queryChild(0);
  663. if (translated->queryValue())
  664. {
  665. OwnedHqlExpr newValue = multiplyValue(translated, value);
  666. return createTranslated(newValue);
  667. }
  668. }
  669. return createValue(no_mul, LINK(type), LINK(expr), createConstant(type->castFrom(false, value)));
  670. }
  671. bool matchesConstValue(IHqlExpression * expr, __int64 matchValue)
  672. {
  673. IValue * value = expr->queryValue();
  674. if (value)
  675. return value->getIntValue() == matchValue;
  676. if (expr->getOperator() == no_translated)
  677. return matchesConstValue(expr->queryChild(0), matchValue);
  678. return false;
  679. }
  680. IHqlExpression * createTranslated(IHqlExpression * expr)
  681. {
  682. return createValue(no_translated, expr->getType(), LINK(expr));
  683. }
  684. IHqlExpression * createTranslatedOwned(IHqlExpression * expr)
  685. {
  686. return createValue(no_translated, expr->getType(), expr);
  687. }
  688. IHqlExpression * createTranslated(IHqlExpression * expr, IHqlExpression * length)
  689. {
  690. ITypeInfo * type = expr->queryType();
  691. switch (type->getTypeCode())
  692. {
  693. case type_dictionary:
  694. return createDictionary(no_translated, LINK(expr), LINK(length));
  695. case type_table:
  696. case type_groupedtable:
  697. return createDataset(no_translated, LINK(expr), LINK(length));
  698. }
  699. return createValue(no_translated, expr->getType(), LINK(expr), LINK(length));
  700. }
  701. static IHqlExpression * querySimplifyCompareArgCast(IHqlExpression * expr)
  702. {
  703. if (expr->isConstant())
  704. return expr;
  705. while ((expr->getOperator() == no_implicitcast) || (expr->getOperator() == no_cast))
  706. {
  707. ITypeInfo * type = expr->queryType()->queryPromotedType();
  708. switch (type->getTypeCode())
  709. {
  710. case type_string:
  711. case type_data:
  712. case type_unicode:
  713. case type_qstring:
  714. case type_utf8:
  715. break;
  716. default:
  717. return expr;
  718. }
  719. IHqlExpression * child = expr->queryChild(0);
  720. ITypeInfo * childType = child->queryType()->queryPromotedType();
  721. if (type->getStringLen() < childType->getStringLen())
  722. break;
  723. type_t tc = type->getTypeCode();
  724. if (tc != childType->getTypeCode())
  725. {
  726. if (tc == type_string)
  727. {
  728. if (childType->getTypeCode() != type_varstring)
  729. break;
  730. if (type->queryCharset() != childType->queryCharset())
  731. break;
  732. }
  733. else if (tc == type_unicode)
  734. {
  735. if (childType->getTypeCode() != type_varunicode)
  736. break;
  737. if (type->queryLocale() != childType->queryLocale())
  738. break;
  739. }
  740. else
  741. break;
  742. }
  743. else
  744. {
  745. Owned<ITypeInfo> stretched = getStretchedType(type->getStringLen(), childType);
  746. if (stretched != type)
  747. break;
  748. }
  749. expr = child;
  750. }
  751. return expr;
  752. }
  753. IHqlExpression * getSimplifyCompareArg(IHqlExpression * expr)
  754. {
  755. IHqlExpression * cast = querySimplifyCompareArgCast(expr);
  756. if (cast->getOperator() != no_substring)
  757. return LINK(cast);
  758. if (cast->queryChild(0)->queryType()->getTypeCode() == type_qstring)
  759. return LINK(cast);
  760. HqlExprArray args;
  761. unwindChildren(args, cast);
  762. args.append(*createAttribute(quickAtom));
  763. return cast->clone(args);
  764. }
  765. bool isNullAssign(const CHqlBoundTarget & target, IHqlExpression * expr)
  766. {
  767. ITypeInfo * targetType = target.expr->queryType();
  768. //if an assignment to a local variable size temporary object, then it is ok to omit an assignment of null
  769. //since it won't change its value, and it isn't going to be assigned more than once.
  770. if ((targetType->getSize() == UNKNOWN_LENGTH) && target.length && hasWrapperModifier(targetType) && !hasModifier(targetType, typemod_member))
  771. {
  772. ITypeInfo * exprType = expr->queryType();
  773. switch (exprType->getTypeCode())
  774. {
  775. case type_data:
  776. case type_string:
  777. case type_qstring:
  778. return exprType->getSize() == 0;
  779. case type_dictionary:
  780. case type_table:
  781. return expr->getOperator() == no_null;
  782. }
  783. }
  784. return false;
  785. }
  786. ExpressionFormat queryNaturalFormat(ITypeInfo * type)
  787. {
  788. if (hasOutOfLineModifier(type))
  789. return FormatArrayDataset;
  790. if (hasLinkCountedModifier(type))
  791. return FormatLinkedDataset;
  792. return FormatBlockedDataset;
  793. }
  794. //===========================================================================
  795. SubGraphInfo::SubGraphInfo(IPropertyTree * _tree, unsigned _id, unsigned _graphId, IHqlExpression * _graphTag, SubGraphType _type)
  796. : HqlExprAssociation(subGraphMarker), tree(_tree)
  797. {
  798. id = _id;
  799. graphId = _graphId;
  800. type = _type;
  801. graphTag.set(_graphTag);
  802. }
  803. //===========================================================================
  804. IHqlExpression * CHqlBoundExpr::getTranslatedExpr() const
  805. {
  806. HqlExprArray args;
  807. args.append(*LINK(expr));
  808. if (length) args.append(*LINK(length));
  809. if (count) args.append(*createAttribute(countAtom, LINK(count)));
  810. if (isAll) args.append(*createAttribute(allAtom, LINK(isAll)));
  811. ITypeInfo * type = expr->queryType();
  812. switch (type->getTypeCode())
  813. {
  814. case type_dictionary:
  815. return createDictionary(no_translated, args);
  816. case type_table:
  817. case type_groupedtable:
  818. return createDataset(no_translated, args);
  819. }
  820. return createValue(no_translated, LINK(type), args);
  821. }
  822. IHqlExpression * CHqlBoundExpr::getComplexExpr() const
  823. {
  824. assertex(count && expr);
  825. return createValue(no_complex, expr->getType(), LINK(count), LINK(expr));
  826. }
  827. IHqlExpression * CHqlBoundExpr::getIsAll() const
  828. {
  829. if (isAll)
  830. return LINK(isAll);
  831. return LINK(queryBoolExpr(false));
  832. }
  833. void CHqlBoundExpr::setFromTarget(const CHqlBoundTarget & target)
  834. {
  835. isAll.set(target.isAll);
  836. count.set(target.count);
  837. length.set(target.length);
  838. expr.setown(convertWrapperToPointer(target.expr));
  839. }
  840. void CHqlBoundExpr::setFromTranslated(IHqlExpression * translatedExpr)
  841. {
  842. expr.set(translatedExpr->queryChild(0));
  843. IHqlExpression * arg = translatedExpr->queryChild(1);
  844. if (arg)
  845. {
  846. unsigned i = 2;
  847. if (arg->getOperator() != no_attr)
  848. {
  849. length.set(arg);
  850. arg = translatedExpr->queryChild(i++);
  851. }
  852. while (arg)
  853. {
  854. IAtom * name = arg->queryName();
  855. if (name == countAtom)
  856. count.set(arg->queryChild(0));
  857. else if (name == allAtom)
  858. isAll.set(arg->queryChild(0));
  859. else
  860. UNIMPLEMENTED;
  861. arg = translatedExpr->queryChild(i++);
  862. }
  863. }
  864. }
  865. bool CHqlBoundTarget::extractFrom(const CHqlBoundExpr & bound)
  866. {
  867. ITypeInfo * boundType = bound.queryType();
  868. if (bound.count)
  869. {
  870. if (bound.count->getOperator() != no_variable)
  871. return false;
  872. if (!hasLinkCountedModifier(boundType))
  873. return false;
  874. }
  875. if (bound.isAll)
  876. {
  877. assertex(bound.isAll->getOperator() == no_variable);
  878. }
  879. else if (boundType->getTypeCode() == type_set)
  880. return false;
  881. if (bound.length)
  882. {
  883. if (bound.length->getOperator() != no_variable)
  884. return false;
  885. }
  886. else if (boundType->getSize() == UNKNOWN_LENGTH)
  887. {
  888. type_t btc = boundType->getTypeCode();
  889. if ((btc != type_varstring) && (btc != type_varunicode) && !hasLinkCountedModifier(boundType))
  890. return false;
  891. }
  892. IHqlExpression * boundExpr = bound.expr;
  893. if (boundExpr->getOperator() == no_implicitcast)
  894. {
  895. IHqlExpression * uncast = boundExpr->queryChild(0);
  896. if (hasModifier(uncast->queryType(), typemod_member) &&
  897. (queryUnqualifiedType(boundExpr->queryType()) == queryUnqualifiedType(uncast->queryType())))
  898. boundExpr = uncast;
  899. }
  900. expr.set(boundExpr);
  901. isAll.set(bound.isAll);
  902. length.set(bound.length);
  903. count.set(bound.count);
  904. return true;
  905. }
  906. bool CHqlBoundTarget::isFixedSize() const
  907. {
  908. validate();
  909. return queryType()->getSize() != UNKNOWN_LENGTH;
  910. }
  911. void CHqlBoundTarget::validate() const
  912. {
  913. if (expr)
  914. {
  915. if (queryType()->getSize() != UNKNOWN_LENGTH)
  916. {
  917. assertex(!length);
  918. }
  919. else if (isArrayRowset(queryType()))
  920. assertex(count != NULL);
  921. else
  922. {
  923. assertex(length || queryType()->getTypeCode() == type_varstring || queryType()->getTypeCode() == type_varunicode);
  924. }
  925. }
  926. }
  927. ITypeInfo * CHqlBoundTarget::queryType() const
  928. {
  929. return expr->queryType();
  930. }
  931. IHqlExpression * CHqlBoundTarget::getTranslatedExpr() const
  932. {
  933. CHqlBoundExpr temp;
  934. temp.setFromTarget(*this);
  935. return temp.getTranslatedExpr();
  936. }
  937. //===========================================================================
  938. CompoundBuilder::CompoundBuilder(node_operator _op)
  939. {
  940. op = _op;
  941. }
  942. void CompoundBuilder::addOperand(IHqlExpression * arg)
  943. {
  944. if (first.get())
  945. {
  946. compound.setown(createOpenValue(op, makeBoolType()));
  947. compound->addOperand(first.getClear());
  948. }
  949. if (compound)
  950. compound->addOperand(arg);
  951. else
  952. first.setown(arg);
  953. }
  954. IHqlExpression * CompoundBuilder::getCompound()
  955. {
  956. if (compound)
  957. return compound.getClear()->closeExpr();
  958. return first.getClear();
  959. }
  960. //===========================================================================
  961. void buildClearPointer(BuildCtx & ctx, IHqlExpression * expr, CompilerType compiler)
  962. {
  963. StringBuffer s;
  964. generateExprCpp(s, expr, compiler).append("=NULL;");
  965. ctx.addQuoted(s);
  966. }
  967. void insertUniqueString(StringAttrArray & array, const char * text)
  968. {
  969. ForEachItemIn(idx, array)
  970. {
  971. StringAttrItem & cur = array.item(idx);
  972. if (stricmp(cur.text, text) == 0)
  973. return;
  974. }
  975. array.append(* new StringAttrItem(text));
  976. }
  977. HqlCppInstance::HqlCppInstance(IWorkUnit *_wu, const char * _wupathname)
  978. {
  979. workunit.set(_wu);
  980. wupathname.set(_wupathname);
  981. }
  982. HqlStmts * HqlCppInstance::ensureSection(IAtom * section)
  983. {
  984. HqlStmts * match = querySection(section);
  985. if (match)
  986. return match;
  987. HqlCppSection * cur = new HqlCppSection;
  988. cur->section = section;
  989. sections.append(*cur);
  990. return &cur->stmts;
  991. }
  992. void HqlCppInstance::processIncludes()
  993. {
  994. BuildCtx ctx(*this, includeAtom);
  995. StringBuffer s;
  996. ForEachItemIn(idx, includes)
  997. {
  998. s.clear().append("#include \"").append(includes.item(idx).text).append("\"");
  999. ctx.addQuoted(s);
  1000. }
  1001. }
  1002. const char * HqlCppInstance::queryLibrary(unsigned idx)
  1003. {
  1004. if (modules.isItem(idx))
  1005. return modules.item(idx).text;
  1006. return NULL;
  1007. }
  1008. HqlStmts * HqlCppInstance::querySection(IAtom * section)
  1009. {
  1010. ForEachItemIn(idx, sections)
  1011. {
  1012. HqlCppSection & cur = (HqlCppSection &)sections.item(idx);
  1013. if (cur.section == section)
  1014. return &cur.stmts;
  1015. }
  1016. return NULL;
  1017. }
  1018. void HqlCppInstance::addPlugin(const char *plugin, const char *version, bool inThor)
  1019. {
  1020. if (!plugin || !*plugin)
  1021. return;
  1022. StringBuffer dllname(plugin);
  1023. getFileNameOnly(dllname, false); // MORE - shouldn't really need to do this here....
  1024. if (workunit)
  1025. {
  1026. Owned<IWUPlugin> p = workunit->updatePluginByName(dllname.str());
  1027. if (version && *version)
  1028. p->setPluginVersion(version);
  1029. if (inThor)
  1030. p->setPluginThor(true);
  1031. else
  1032. p->setPluginHole(true);
  1033. }
  1034. if (!plugins)
  1035. plugins.setown(createPTree("Plugins"));
  1036. StringBuffer xpath;
  1037. xpath.append("Plugin[@dll='").append(dllname).append("']");
  1038. if (!plugins->hasProp(xpath.str()))
  1039. {
  1040. IPropertyTree * pluginNode = createPTree("Plugin");
  1041. pluginNode->setProp("@dll", dllname.str());
  1042. if (version && *version)
  1043. pluginNode->setProp("@version", version);
  1044. plugins->addPropTree("Plugin", pluginNode);
  1045. }
  1046. }
  1047. void HqlCppInstance::addPluginsAsResource()
  1048. {
  1049. if (!plugins)
  1050. return;
  1051. StringBuffer pluginXML;
  1052. toXML(plugins, pluginXML);
  1053. addResource("PLUGINS", pluginXML.length(), pluginXML.str(), NULL, 1);
  1054. }
  1055. bool HqlCppInstance::useFunction(IHqlExpression * func)
  1056. {
  1057. assertex(func);
  1058. func = func->queryBody();
  1059. if (helpers.contains(*func))
  1060. return false;
  1061. helpers.append(*LINK(func));
  1062. IHqlExpression * funcDef = func->queryChild(0);
  1063. StringBuffer libname, init, include;
  1064. getAttribute(funcDef, libraryAtom, libname);
  1065. getAttribute(funcDef, initfunctionAtom, init);
  1066. getAttribute(funcDef, includeAtom, include);
  1067. if (init.length())
  1068. {
  1069. BuildCtx ctx(*this, initAtom);
  1070. ctx.addQuoted(init.append("(wuid);"));
  1071. }
  1072. IHqlExpression *pluginAttr = funcDef->queryAttribute(pluginAtom);
  1073. if (pluginAttr)
  1074. {
  1075. StringBuffer plugin, version;
  1076. getStringValue(plugin, pluginAttr->queryChild(0));
  1077. getStringValue(version, pluginAttr->queryChild(1));
  1078. addPlugin(plugin.str(), version.str(), false);
  1079. if (!libname.length())
  1080. {
  1081. getStringValue(libname, pluginAttr->queryChild(0));
  1082. getFullFileName(libname, true);
  1083. }
  1084. }
  1085. if (!funcDef->hasAttribute(ctxmethodAtom) && !funcDef->hasAttribute(gctxmethodAtom) && !funcDef->hasAttribute(methodAtom))
  1086. {
  1087. if (libname.length())
  1088. useLibrary(libname.str());
  1089. }
  1090. if (include.length())
  1091. useInclude(include.str());
  1092. return true;
  1093. }
  1094. void HqlCppInstance::useInclude(const char * include)
  1095. {
  1096. insertUniqueString(includes, include);
  1097. }
  1098. void HqlCppInstance::useLibrary(const char * libname)
  1099. {
  1100. insertUniqueString(modules, libname);
  1101. }
  1102. void HqlCppInstance::addHint(const char * hintXml, ICodegenContextCallback * ctxCallback)
  1103. {
  1104. if (!hintFile)
  1105. {
  1106. StringBuffer hintFilename;
  1107. if (wupathname)
  1108. hintFilename.append(wupathname);
  1109. else
  1110. hintFilename.append("wu");
  1111. hintFilename.append("_hints.xml");
  1112. Owned<IFile> file = createIFile(hintFilename);
  1113. Owned<IFileIO> io = file->open(IFOcreate);
  1114. if (!io)
  1115. return;
  1116. hintFile.setown(createIOStream(io));
  1117. appendHintText("<Hints>\n");
  1118. Owned<IWUQuery> query = workunit->updateQuery();
  1119. associateLocalFile(query, FileTypeCpp, hintFilename.str(), "Hints", 0);
  1120. ctxCallback->registerFile(hintFilename.str(), "Hints");
  1121. }
  1122. appendHintText(hintXml);
  1123. }
  1124. void HqlCppInstance::appendHintText(const char * xml)
  1125. {
  1126. hintFile->write(strlen(xml), xml);
  1127. }
  1128. unsigned HqlCppInstance::addStringResource(unsigned len, const char * body)
  1129. {
  1130. return resources.addString(len, body);
  1131. }
  1132. void HqlCppInstance::addResource(const char * type, unsigned len, const void * body, IPropertyTree *manifestEntry, unsigned id)
  1133. {
  1134. resources.addNamed(type, len, body, manifestEntry, id);
  1135. }
  1136. void HqlCppInstance::addCompressResource(const char * type, unsigned len, const void * body, IPropertyTree *manifestEntry, unsigned id)
  1137. {
  1138. #ifdef ADD_RESOURCE_AS_CPP_COMMENT
  1139. BuildCtx ctx(*this, includeAtom);
  1140. StringBuffer s;
  1141. s.append("/* ").append(type).append(".").append(id).append(":\n").append(len,(const char *)data).newline().append("*/");
  1142. ctx.addQuoted(s);
  1143. #endif
  1144. resources.addCompress(type, len, body, manifestEntry, id);
  1145. }
  1146. void HqlCppInstance::flushHints()
  1147. {
  1148. if (hintFile)
  1149. {
  1150. appendHintText("</Hints>\n");
  1151. hintFile.clear();
  1152. }
  1153. }
  1154. void HqlCppInstance::flushResources(const char *filename, ICodegenContextCallback * ctxCallback)
  1155. {
  1156. addPluginsAsResource();
  1157. if (resources.count())
  1158. {
  1159. bool flushText = workunit->getDebugValueBool("flushResourceAsText", false);
  1160. StringBuffer path, trailing;
  1161. splitFilename(filename, &path, &path, &trailing, &trailing);
  1162. StringBuffer ln;
  1163. ln.append(path).append(SharedObjectPrefix).append(trailing).append(LibraryExtension);
  1164. #ifdef __64BIT__
  1165. bool target64bit = workunit->getDebugValueBool("target64bit", true);
  1166. #else
  1167. bool target64bit = workunit->getDebugValueBool("target64bit", false);
  1168. #endif
  1169. resources.flush(ln.str(), flushText, target64bit);
  1170. StringBuffer resTextName;
  1171. if (flushText && resources.queryWriteText(resTextName, ln))
  1172. {
  1173. Owned<IWUQuery> query = workunit->updateQuery();
  1174. associateLocalFile(query, FileTypeHintXml, resTextName, "Workunit resource text", 0);
  1175. ctxCallback->registerFile(resTextName, "Workunit Res.txt");
  1176. }
  1177. useLibrary(filename);
  1178. }
  1179. }
  1180. IHqlCppInstance * createCppInstance(IWorkUnit *wu, const char * wupathname)
  1181. {
  1182. return new HqlCppInstance(wu, wupathname);
  1183. }
  1184. //===========================================================================
  1185. #include "hqlcppsys.ecl"
  1186. HqlCppTranslator::HqlCppTranslator(IErrorReceiver * _errors, const char * _soName, IHqlCppInstance * _code, ClusterType _targetClusterType, ICodegenContextCallback *_ctxCallback) : ctxCallback(_ctxCallback)
  1187. {
  1188. targetClusterType = _targetClusterType;
  1189. {
  1190. CriticalBlock block(*systemCS);
  1191. if (!cppSystemScope)
  1192. {
  1193. StringBuffer systemText;
  1194. unsigned size = 0;
  1195. for (unsigned i1=0; cppSystemText[i1]; i1++)
  1196. size += strlen(cppSystemText[i1]) + 2;
  1197. systemText.ensureCapacity(size);
  1198. for (unsigned i2=0; cppSystemText[i2]; i2++)
  1199. systemText.append(cppSystemText[i2]).newline();
  1200. MultiErrorReceiver errs;
  1201. HqlDummyLookupContext ctx(&errs);
  1202. cppSystemScope = createScope();
  1203. Owned<ISourcePath> sysPath = createSourcePath("<system-definitions>");
  1204. Owned<IFileContents> systemContents = createFileContentsFromText(systemText.str(), sysPath);
  1205. OwnedHqlExpr query = parseQuery(cppSystemScope, systemContents, ctx, NULL, NULL, false);
  1206. if (errs.errCount())
  1207. {
  1208. StringBuffer errtext;
  1209. IECLError *first = errs.firstError();
  1210. first->toString(errtext);
  1211. throw MakeStringException(HQLERR_FailedToLoadSystemModule, "%s @ %d:%d", errtext.str(), first->getColumn(), first->getLine());
  1212. }
  1213. #if 0
  1214. else if (errs.warnCount())
  1215. {
  1216. StringBuffer s;
  1217. errs.toString(s);
  1218. PrintLog("Parsing system scope: ");
  1219. PrintLog(s.str());
  1220. }
  1221. #endif
  1222. }
  1223. }
  1224. errors = _errors;
  1225. hints = 0;
  1226. litno = 0;
  1227. soName.set(_soName);
  1228. HqlDummyLookupContext dummyctx(NULL);
  1229. OwnedHqlExpr internalScopeLookup = cppSystemScope->lookupSymbol(createIdAtom("InternalCppService"), LSFsharedOK, dummyctx);
  1230. internalScope = internalScopeLookup->queryScope();
  1231. _clear(options); // init options is called later, but depends on the workunit.
  1232. startCursorSet = 0;
  1233. requireTable = true;
  1234. activeGraphCtx = NULL;
  1235. maxSequence = 0;
  1236. contextAvailable = true;
  1237. graphSeqNumber = 0;
  1238. nlpParse = NULL;
  1239. outputLibrary = NULL;
  1240. checkedEmbeddedCpp = false;
  1241. cachedAllowEmbeddedCpp = true;
  1242. checkedPipeAllowed = false;
  1243. activitiesThisCpp = 0;
  1244. curCppFile = 0;
  1245. timeReporter.setown(createStdTimeReporter());
  1246. curActivityId = 0;
  1247. holeUniqueSequence = 0;
  1248. nextUid = 0;
  1249. nextTypeId = 0;
  1250. nextFieldId = 0;
  1251. code = (HqlCppInstance*)_code;
  1252. }
  1253. HqlCppTranslator::~HqlCppTranslator()
  1254. {
  1255. ::Release(nlpParse);
  1256. ::Release(outputLibrary);
  1257. }
  1258. void HqlCppTranslator::setTargetClusterType(ClusterType clusterType)
  1259. {
  1260. targetClusterType = clusterType;
  1261. }
  1262. void HqlCppTranslator::checkAbort()
  1263. {
  1264. if (wu() && wu()->aborting())
  1265. throw MakeStringException(HQLERR_ErrorAlreadyReported, "Aborting");
  1266. }
  1267. // Option: (Name, value, ?overridden, default())
  1268. // problems:
  1269. // default value can depend on another option (e.g., cluster type/supports lcr).
  1270. // don't want code in multiple places - e.g., the values initialized and defaulted, and dependencies calculations duplicated separately.
  1271. // don't want lots of start up costs each time the translator is created -> lightweight classes if any.
  1272. // don't really want two structures, one for the definitions, and another for the values.
  1273. //RESOLVED? want to walk the debug options provided, instead of checking for each possibility in turn.
  1274. // Without this restriction it becomes much easier.
  1275. void HqlCppTranslator::cacheOptions()
  1276. {
  1277. SCMStringBuffer targetText;
  1278. wu()->getDebugValue("targetClusterType", targetText);
  1279. ClusterType clusterType = getClusterType(targetText.s.str());
  1280. if (clusterType != NoCluster)
  1281. setTargetClusterType(clusterType);
  1282. //Some compound flags, which provide defaults for various other options.
  1283. bool paranoid = getDebugFlag("paranoid", false);
  1284. bool releaseMode = getDebugFlag("release", true);
  1285. struct DebugOption
  1286. {
  1287. typedef enum { typeByte, typeUnsigned, typeSigned, typeBool } OptionType;
  1288. DebugOption (bool & _option, const char * name, bool defaultValue) : option(&_option), optName(name)
  1289. {
  1290. _option = defaultValue;
  1291. type = typeBool;
  1292. }
  1293. DebugOption (byte & _option, const char * name, byte defaultValue) : option(&_option), optName(name)
  1294. {
  1295. _option = defaultValue;
  1296. type = typeByte;
  1297. }
  1298. DebugOption (unsigned & _option, const char * name, unsigned defaultValue) : option(&_option), optName(name)
  1299. {
  1300. _option = defaultValue;
  1301. type = typeUnsigned;
  1302. }
  1303. DebugOption (int & _option, const char * name, unsigned defaultValue) : option(&_option), optName(name)
  1304. {
  1305. _option = defaultValue;
  1306. type = typeSigned;
  1307. }
  1308. void setValue(const char * val)
  1309. {
  1310. switch (type)
  1311. {
  1312. case typeBool:
  1313. {
  1314. bool * b = (bool*)option;
  1315. *b = strToBool(val);
  1316. break;
  1317. }
  1318. case typeUnsigned:
  1319. {
  1320. unsigned * u = (unsigned*)option;
  1321. *u = (unsigned)atoi(val);
  1322. break;
  1323. }
  1324. case typeSigned:
  1325. {
  1326. signed * u = (signed*)option;
  1327. *u = (signed)atoi(val);
  1328. break;
  1329. }
  1330. case typeByte:
  1331. {
  1332. byte * b = (byte*)option;
  1333. *b = (byte)atoi(val);
  1334. break;
  1335. }
  1336. }
  1337. }
  1338. void * option;
  1339. const char * optName;
  1340. OptionType type;
  1341. };
  1342. //Note this list cannot have any initial values which are dependent on other options.
  1343. DebugOption debugOptions[] =
  1344. {
  1345. DebugOption(options.peephole,"peephole", true),
  1346. DebugOption(options.foldConstantCast,"foldConstantCast", true),
  1347. DebugOption(options.optimizeBoolReturn,"optimizeBoolReturn", true),
  1348. DebugOption(options.freezePersists,"freezePersists", false),
  1349. DebugOption(options.maxRecordSize, "defaultMaxLengthRecord", MAX_RECORD_SIZE),
  1350. DebugOption(options.subgraphToRegeneate, "subgraphToRegeneate", 0),
  1351. DebugOption(options.checkRoxieRestrictions,"checkRoxieRestrictions", true), // a debug aid for running regression suite
  1352. DebugOption(options.checkThorRestrictions,"checkThorRestrictions", true), // a debug aid for running regression suite
  1353. DebugOption(options.allowCsvWorkunitRead,"allowStoredCsvFormat", false),
  1354. DebugOption(options.evaluateCoLocalRowInvariantInExtract,"evaluateCoLocalRowInvariantInExtract", false),
  1355. DebugOption(options.spanMultipleCpp,"spanMultipleCpp", true),
  1356. DebugOption(options.activitiesPerCpp, "<exception>", 0x7fffffff),
  1357. DebugOption(options.allowInlineSpill,"allowInlineSpill", true),
  1358. DebugOption(options.optimizeGlobalProjects,"optimizeGlobalProjects", false),
  1359. DebugOption(options.optimizeResourcedProjects,"optimizeResourcedProjects", false),
  1360. DebugOption(options.reduceNetworkTraffic,"aggressiveOptimizeProjects", false),
  1361. DebugOption(options.notifyOptimizedProjects, "notifyOptimizedProjects", 0),
  1362. DebugOption(options.optimizeProjectsPreservePersists,"optimizeProjectsPreservePersists", false),
  1363. DebugOption(options.expirePersists, "expirePersists", true),
  1364. DebugOption(options.defaultPersistExpiry, "defaultPersistExpiry", DEFAULT_PERSIST_EXPIRY_PERIOD),
  1365. DebugOption(options.defaultExpiry, "defaultExpiry", DEFAULT_EXPIRY_PERIOD),
  1366. DebugOption(options.checkAsserts,"checkAsserts", true),
  1367. DebugOption(options.assertSortedDistributed,"assertSortedDistributed", false),
  1368. DebugOption(options.optimizeLoopInvariant,"optimizeLoopInvariant", false), // doesn't fully work yet! and has little effect, and messes up the alias dependencies
  1369. DebugOption(options.defaultImplicitKeyedJoinLimit, "defaultImplicitKeyedJoinLimit", 10000),
  1370. DebugOption(options.defaultImplicitIndexReadLimit, "defaultImplicitIndexReadLimit", 0),
  1371. DebugOption(options.commonUpChildGraphs,"commonUpChildGraphs", true),
  1372. DebugOption(options.detectAmbiguousSelector,"detectAmbiguousSelector", false),
  1373. DebugOption(options.allowAmbiguousSelector,"allowAmbiguousSelector", false),
  1374. #ifdef _DEBUG
  1375. DebugOption(options.regressionTest,"regressionTest", true),
  1376. #else
  1377. DebugOption(options.regressionTest,"regressionTest", false),
  1378. #endif
  1379. DebugOption(options.addTimingToWorkunit, "addTimingToWorkunit", true),
  1380. //recreating case can cause duplicate branches in weird situations.
  1381. DebugOption(options.recreateMapFromIf,"recreateMapFromIf", !targetThor()),
  1382. DebugOption(options.showMetaText,"debugShowMetaText", false),
  1383. DebugOption(options.resourceSequential,"resourceSequential", false),
  1384. DebugOption(options.workunitTemporaries,"workunitTemporaries", true),
  1385. DebugOption(options.resourceConditionalActions,"resourceConditionalActions", false), //targetRoxie() ??
  1386. DebugOption(options.actionLinkInNewGraph,"actionLinkInNewGraph", false),
  1387. DebugOption(options.minimizeWorkunitTemporaries, "<exception>", false),
  1388. DebugOption(options.pickBestEngine,"pickBestEngine", true),
  1389. DebugOption(options.groupedChildIterators,"groupedChildIterators", false),
  1390. DebugOption(options.noAllToLookupConversion,"noAllToLookupConversion", false),
  1391. DebugOption(options.notifyWorkflowCse,"notifyWorkflowCse", true),
  1392. DebugOption(options.performWorkflowCse,"performWorkflowCse", false),
  1393. DebugOption(options.warnOnImplicitJoinLimit,"warnOnImplicitJoinLimit", targetRoxie()),
  1394. DebugOption(options.warnOnImplicitReadLimit,"warnOnImplicitReadLimit", targetRoxie()),
  1395. DebugOption(options.convertJoinToLookup,"convertJoinToLookup", true),
  1396. DebugOption(options.convertJoinToLookupIfSorted,"convertJoinToLookupIfSorted", false),
  1397. DebugOption(options.spotCSE,"spotCSE", true),
  1398. DebugOption(options.optimizeNonEmpty,"optimizeNonEmpty", !targetThor()), // not sure that it will be conditional resourced correctly for thor
  1399. DebugOption(options.allowVariableRoxieFilenames,"allowVariableRoxieFilenames", false),
  1400. DebugOption(options.foldConstantDatasets,"foldConstantDatasets", true),
  1401. DebugOption(options.hoistSimpleGlobal,"hoistSimpleGlobal", true),
  1402. DebugOption(options.percolateConstants,"percolateConstants", true),
  1403. DebugOption(options.percolateFilters,"percolateFilters", false),
  1404. DebugOption(options.usePrefetchForAllProjects,"usePrefetchForAllProjects", false),
  1405. DebugOption(options.allFilenamesDynamic,"allFilenamesDynamic", false),
  1406. DebugOption(options.optimizeSteppingPostfilter,"optimizeSteppingPostfilter", true),
  1407. DebugOption(options.moveUnconditionalActions,"moveUnconditionalActions", false),
  1408. DebugOption(options.paranoidCheckNormalized, "paranoidCheckNormalized", paranoid),
  1409. DebugOption(options.paranoidCheckDependencies, "paranoidCheckDependencies", paranoid),
  1410. DebugOption(options.paranoidCheckSelects, "paranoidCheckSelects", paranoid),
  1411. DebugOption(options.preventKeyedSplit,"preventKeyedSplit", true),
  1412. DebugOption(options.preventSteppedSplit,"preventSteppedSplit", true),
  1413. DebugOption(options.canGenerateSimpleAction,"canGenerateSimpleAction", true),
  1414. DebugOption(options.minimizeActivityClasses,"minimizeActivityClasses", true),
  1415. DebugOption(options.maxRootMaybeThorActions, "maxRootMaybeThorActions", 0),
  1416. DebugOption(options.minimizeSkewBeforeSpill,"minimizeSkewBeforeSpill", false),
  1417. DebugOption(options.createSerializeForUnknownSize,"createSerializeForUnknownSize", false),
  1418. DebugOption(options.implicitLinkedChildRows,"implicitLinkedChildRows", false),
  1419. DebugOption(options.mainRowsAreLinkCounted,"mainRowsAreLinkCounted", true),
  1420. DebugOption(options.allowSections,"allowSections", true),
  1421. DebugOption(options.autoPackRecords,"autoPackRecords", false),
  1422. DebugOption(options.commonUniqueNameAttributes,"commonUniqueNameAttributes", true),
  1423. DebugOption(options.sortIndexPayload,"sortIndexPayload", true),
  1424. DebugOption(options.foldFilter,"foldFilter", true),
  1425. DebugOption(options.finalizeAllRows, "finalizeAllRows", false),
  1426. DebugOption(options.maxLocalRowSize , "maxLocalRowSize", MAX_LOCAL_ROW_SIZE),
  1427. DebugOption(options.optimizeGraph,"optimizeGraph", true),
  1428. DebugOption(options.orderDiskFunnel,"orderDiskFunnel", true),
  1429. DebugOption(options.alwaysAllowAllNodes,"alwaysAllowAllNodes", false),
  1430. DebugOption(options.slidingJoins,"slidingJoins", false),
  1431. DebugOption(options.foldOptimized,"foldOptimized", false),
  1432. DebugOption(options.globalOptimize,"globalOptimize", false),
  1433. DebugOption(options.applyInstantEclTransformations,"applyInstantEclTransformations", false), // testing option
  1434. DebugOption(options.calculateComplexity,"calculateComplexity", false),
  1435. DebugOption(options.generateLogicalGraph,"generateLogicalGraph", false),
  1436. DebugOption(options.generateLogicalGraphOnly,"generateLogicalGraphOnly", false),
  1437. DebugOption(options.globalAutoHoist,"globalAutoHoist", true),
  1438. DebugOption(options.applyInstantEclTransformationsLimit, "applyInstantEclTransformationsLimit", 100),
  1439. DebugOption(options.insertProjectCostLevel, "insertProjectCostLevel", (unsigned)-1),
  1440. DebugOption(options.dfaRepeatMax, "dfaRepeatMax", 10),
  1441. DebugOption(options.dfaRepeatMaxScore, "dfaRepeatMaxScore", 100),
  1442. DebugOption(options.debugNlp, "debugNlp", DEFAULT_NLP_DETAIL),
  1443. DebugOption(options.regexVersion, "regexVersion",0),
  1444. DebugOption(options.parseDfaComplexity, "parseDfaComplexity", (unsigned)-1),
  1445. DebugOption(options.expandRepeatAnyAsDfa,"expandRepeatAnyAsDfa", true),
  1446. DebugOption(options.resourceMaxMemory, "resourceMaxMemory", 0),
  1447. DebugOption(options.resourceMaxSockets, "resourceMaxSockets", 0),
  1448. DebugOption(options.resourceMaxActivities, "resourceMaxActivities", 0),
  1449. DebugOption(options.resourceMaxHeavy, "resourceMaxHeavy", 1),
  1450. DebugOption(options.resourceMaxDistribute, "resourceMaxDistribute", 2),
  1451. DebugOption(options.unlimitedResources,"unlimitedResources", false),
  1452. DebugOption(options.filteredReadSpillThreshold, "filteredReadSpillThreshold", 999),
  1453. DebugOption(options.allowThroughSpill,"allowThroughSpill", true),
  1454. DebugOption(options.minimiseSpills,"minimiseSpills", false),
  1455. DebugOption(options.spillMultiCondition,"spillMultiCondition", false),
  1456. DebugOption(options.spotThroughAggregate,"spotThroughAggregate", true),
  1457. DebugOption(options.hoistResourced,"hoistResourced", true),
  1458. DebugOption(options.minimizeSpillSize, "minimizeSpillSize", 0),
  1459. DebugOption(options.maximizeLexer,"maximizeLexer", false),
  1460. DebugOption(options.foldStored,"foldStored", false),
  1461. DebugOption(options.spotTopN,"spotTopN", true),
  1462. DebugOption(options.topnLimit, "topnLimit", 10000),
  1463. DebugOption(options.groupAllDistribute,"groupAllDistribute", false),
  1464. DebugOption(options.spotLocalMerge,"spotLocalMerge", true),
  1465. DebugOption(options.spotPotentialKeyedJoins,"spotPotentialKeyedJoins", false),
  1466. DebugOption(options.combineTrivialStored,"combineTrivialStored", true),
  1467. DebugOption(options.combineAllStored,"combineAllStored", false),
  1468. DebugOption(options.allowStoredDuplicate,"allowStoredDuplicate", false), // only here as a temporary workaround
  1469. DebugOption(options.specifiedClusterSize, "clusterSize", 0),
  1470. DebugOption(options.globalFoldOptions, "globalFoldOptions", (unsigned)-1),
  1471. DebugOption(options.allowScopeMigrate,"allowScopeMigrate", true),
  1472. DebugOption(options.supportFilterProject,"supportFilterProject", true),
  1473. DebugOption(options.normalizeExplicitCasts,"normalizeExplicitCasts", true),
  1474. DebugOption(options.optimizeInlineSource,"optimizeInlineSource", false),
  1475. DebugOption(options.optimizeDiskSource,"optimizeDiskSource", true),
  1476. DebugOption(options.optimizeIndexSource,"optimizeIndexSource", true),
  1477. DebugOption(options.optimizeChildSource,"optimizeChildSource", false),
  1478. DebugOption(options.reportLocations,"reportLocations", true),
  1479. DebugOption(options.debugGeneratedCpp,"debugGeneratedCpp", false),
  1480. DebugOption(options.addFilesnamesToGraph,"addFilesnamesToGraph", true),
  1481. DebugOption(options.normalizeLocations,"normalizeLocations", true),
  1482. DebugOption(options.ensureRecordsHaveSymbols,"ensureRecordsHaveSymbols", true),
  1483. DebugOption(options.constantFoldNormalize,"constantFoldNormalize", true),
  1484. DebugOption(options.constantFoldPostNormalize,"constantFoldPostNormalize", false),
  1485. DebugOption(options.optimizeGrouping,"optimizeGrouping", true),
  1486. DebugOption(options.showMetaInGraph,"showMetaInGraph", false),
  1487. DebugOption(options.spotComplexClasses,"spotComplexClasses", true),
  1488. DebugOption(options.complexClassesThreshold,"complexClassesThreshold", 5000),
  1489. DebugOption(options.complexClassesActivityFilter,"complexClassesActivityFilter", 0),
  1490. DebugOption(options.optimizeString1Compare,"optimizeString1Compare", true),
  1491. DebugOption(options.optimizeSpillProject,"optimizeSpillProject", true),
  1492. DebugOption(options.expressionPeephole,"expressionPeephole", false),
  1493. DebugOption(options.optimizeIncrement,"optimizeIncrement", true),
  1494. DebugOption(options.supportsMergeDistribute,"supportsMergeDistribute", true),
  1495. DebugOption(options.debugNlpAsHint,"debugNlpAsHint", false),
  1496. DebugOption(options.forceVariableWuid,"forceVariableWuid", false),
  1497. DebugOption(options.okToDeclareAndAssign,"okToDeclareAndAssign", false),
  1498. DebugOption(options.noteRecordSizeInGraph,"noteRecordSizeInGraph", true),
  1499. DebugOption(options.convertRealAssignToMemcpy,"convertRealAssignToMemcpy", false),
  1500. DebugOption(options.allowActivityForKeyedJoin,"allowActivityForKeyedJoin", false),
  1501. DebugOption(options.forceActivityForKeyedJoin,"forceActivityForKeyedJoin", false),
  1502. DebugOption(options.addLibraryInputsToGraph,"addLibraryInputsToGraph", false),
  1503. DebugOption(options.showRecordCountInGraph,"showRecordCountInGraph", true),
  1504. DebugOption(options.serializeRowsetInExtract,"serializeRowsetInExtract", false),
  1505. DebugOption(options.testIgnoreMaxLength,"testIgnoreMaxLength", false),
  1506. DebugOption(options.trackDuplicateActivities,"trackDuplicateActivities", false),
  1507. DebugOption(options.showActivitySizeInGraph,"showActivitySizeInGraph", false),
  1508. DebugOption(options.addLocationToCpp,"addLocationToCpp", false),
  1509. DebugOption(options.alwaysCreateRowBuilder,"alwaysCreateRowBuilder", false),
  1510. DebugOption(options.precalculateFieldOffsets,"precalculateFieldOffsets", false),
  1511. DebugOption(options.generateStaticInlineTables,"generateStaticInlineTables", true),
  1512. DebugOption(options.staticRowsUseStringInitializer,"staticRowsUseStringInitializer", true),
  1513. DebugOption(options.convertWhenExecutedToCompound,"convertWhenExecutedToCompound", queryLegacyEclSemantics()),
  1514. DebugOption(options.standAloneExe,"standAloneExe", false),
  1515. DebugOption(options.enableCompoundCsvRead,"enableCompoundCsvRead", true),
  1516. // The following works 99% of the time, but disabled due to potential problems with the ambiguity of LEFT
  1517. //possibly causing filters on nested records to be incorrectly removed.
  1518. DebugOption(options.optimizeNestedConditional,"optimizeNestedConditional", false),
  1519. DebugOption(options.createImplicitAliases,"createImplicitAliases", false),
  1520. DebugOption(options.combineSiblingGraphs,"combineSiblingGraphs", true),
  1521. DebugOption(options.optimizeSharedGraphInputs,"optimizeSharedGraphInputs", true),
  1522. DebugOption(options.supportsSubSortActivity,"supportsSubSortActivity",false),
  1523. DebugOption(options.implicitSubSort,"implicitSubSort",true),
  1524. DebugOption(options.implicitBuildIndexSubSort,"implicitBuildIndexSubSort",true),
  1525. DebugOption(options.implicitJoinSubSort,"implicitJoinSubSort",true),
  1526. DebugOption(options.implicitGroupSubSort,"implicitGroupSubSort",true),
  1527. DebugOption(options.implicitGroupHashAggregate,"implicitGroupHashAggregate",false),
  1528. DebugOption(options.implicitGroupHashDedup,"implicitGroupHashDedup",false),
  1529. DebugOption(options.reportFieldUsage,"reportFieldUsage",false),
  1530. DebugOption(options.reportFileUsage,"reportFileUsage",false),
  1531. DebugOption(options.subsortLocalJoinConditions,"subsortLocalJoinConditions",false),
  1532. DebugOption(options.projectNestedTables,"projectNestedTables",true),
  1533. DebugOption(options.showSeqInGraph,"showSeqInGraph",false), // For tracking down why projects are not commoned up
  1534. DebugOption(options.normalizeSelectorSequence,"normalizeSelectorSequence",false), // For tracking down why projects are not commoned up
  1535. DebugOption(options.removeXpathFromOutput,"removeXpathFromOutput",false),
  1536. DebugOption(options.canLinkConstantRows,"canLinkConstantRows",true),
  1537. DebugOption(options.checkAmbiguousRollupCondition,"checkAmbiguousRollupCondition",true),
  1538. DebugOption(options.matchExistingDistributionForJoin,"matchExistingDistributionForJoin",true),
  1539. DebugOption(options.expandHashJoin,"expandHashJoin",false),
  1540. DebugOption(options.traceIR,"traceIR",false),
  1541. DebugOption(options.preserveCaseExternalParameter,"preserveCaseExternalParameter",true),
  1542. DebugOption(options.optimizeParentAccess,"optimizeParentAccess",false),
  1543. DebugOption(options.expandPersistInputDependencies,"expandPersistInputDependencies",true),
  1544. DebugOption(options.multiplePersistInstances,"multiplePersistInstances",true),
  1545. DebugOption(options.defaultNumPersistInstances,"defaultNumPersistInstances",-1),
  1546. };
  1547. //get options values from workunit
  1548. const unsigned numDebugOptions = _elements_in(debugOptions);
  1549. Owned<IStringIterator> debugs(&wu()->getDebugValues());
  1550. SCMStringBuffer name, val;
  1551. ForEach(*debugs)
  1552. {
  1553. debugs->str(name);
  1554. wu()->getDebugValue(name.str(),val);
  1555. unsigned x = 0;
  1556. for (; x < numDebugOptions; x++)
  1557. {
  1558. if (0 == stricmp(name.str(), debugOptions[x].optName))
  1559. {
  1560. debugOptions[x].setValue(val.str());
  1561. break;
  1562. }
  1563. }
  1564. }
  1565. //Configure the divide by zero action
  1566. options.divideByZeroAction = DBZzero;
  1567. const char * dbz = wu()->getDebugValue("divideByZero",val).str();
  1568. if (strieq(val.str(), "0") || strieq(val.str(), "zero"))
  1569. options.divideByZeroAction = DBZzero;
  1570. else if (strieq(val.str(), "nan"))
  1571. options.divideByZeroAction = DBZnan;
  1572. else if (strieq(val.str(), "fail") || strieq(val.str(), "throw"))
  1573. options.divideByZeroAction = DBZfail;
  1574. else if (val.length())
  1575. throwError2(HQLERR_UnexpectedOptionValue_XY, "divideByZero", val.str());
  1576. //The following cases handle options whose default values are dependent on other options.
  1577. //Or where one debug options sets more than one option
  1578. if (options.spanMultipleCpp)
  1579. {
  1580. options.activitiesPerCpp = wu()->getDebugValueInt("activitiesPerCpp", DEFAULT_ACTIVITIES_PER_CPP);
  1581. curCppFile = 1;
  1582. }
  1583. options.targetCompiler = DEFAULT_COMPILER;
  1584. if (wu()->hasDebugValue("targetGcc"))
  1585. options.targetCompiler = wu()->getDebugValueBool("targetGcc", false) ? GccCppCompiler : Vs6CppCompiler;
  1586. SCMStringBuffer compilerText;
  1587. wu()->getDebugValue("targetCompiler", compilerText);
  1588. for (CompilerType iComp = (CompilerType)0; iComp < MaxCompiler; iComp = (CompilerType)(iComp+1))
  1589. {
  1590. if (stricmp(compilerText.s.str(), compilerTypeText[iComp]) == 0)
  1591. options.targetCompiler = iComp;
  1592. }
  1593. if (getDebugFlag("optimizeProjects", true))
  1594. {
  1595. options.optimizeGlobalProjects = true;
  1596. options.optimizeResourcedProjects = true;
  1597. }
  1598. options.minimizeWorkunitTemporaries = !options.workunitTemporaries || getDebugFlag("minimizeWorkunitTemporaries", false);//options.resourceConditionalActions);
  1599. options.inlineStringThreshold = wu()->getDebugValueInt("inlineStringThreshold", (options.targetCompiler != Vs6CppCompiler) ? 0 : 10000);
  1600. options.implicitLinkedChildRows = true;
  1601. options.finalizeAllRows = true; // inline temporary rows should actually be ok.
  1602. postProcessOptions();
  1603. }
  1604. void HqlCppTranslator::postProcessOptions()
  1605. {
  1606. //Any post processing - e.g., dependent flags goes here...
  1607. options.optimizeDiskFlag = 0;
  1608. if (options.optimizeInlineSource)
  1609. options.optimizeDiskFlag |= CSFnewinline;
  1610. if (options.optimizeDiskSource)
  1611. options.optimizeDiskFlag |= CSFnewdisk;
  1612. if (options.optimizeIndexSource)
  1613. options.optimizeDiskFlag |= CSFnewindex;
  1614. if (options.optimizeChildSource)
  1615. options.optimizeDiskFlag |= CSFnewchild;
  1616. if (!targetThor())
  1617. {
  1618. //Roxie doesn't gain from additional projects, hthor doesn't support split
  1619. options.optimizeSpillProject = false;
  1620. }
  1621. if (options.resourceSequential)
  1622. options.resourceConditionalActions = true;
  1623. //Probably best to ignore this warning. - possibly configure it based on some other option
  1624. queryWarningProcessor().addGlobalOnWarning(HQLWRN_FoldRemoveKeyed, ignoreAtom);
  1625. //Ensure the settings for the following options are always present in the workunit
  1626. wu()->setDebugValueInt("expandPersistInputDependencies",options.expandPersistInputDependencies,true);
  1627. if (options.forceVariableWuid)
  1628. wu()->setCloneable(true);
  1629. }
  1630. unsigned HqlCppTranslator::getOptimizeFlags() const
  1631. {
  1632. unsigned optFlags = HOOfold;
  1633. switch (targetClusterType)
  1634. {
  1635. case RoxieCluster:
  1636. optFlags |= HOOnoclonelimit|HOOalwayslocal;
  1637. break;
  1638. case HThorCluster:
  1639. optFlags |= HOOnocloneindexlimit|HOOalwayslocal;
  1640. break;
  1641. case ThorLCRCluster:
  1642. break;
  1643. default:
  1644. UNIMPLEMENTED;
  1645. }
  1646. if ((options.optimizeDiskFlag & CSFnewdisk) && (options.optimizeDiskFlag & CSFnewindex))
  1647. optFlags |= HOOhascompoundaggregate;
  1648. if (options.foldConstantDatasets)
  1649. optFlags |= HOOfoldconstantdatasets;
  1650. return optFlags;
  1651. }
  1652. void HqlCppTranslator::overrideOptionsForLibrary()
  1653. {
  1654. options.workunitTemporaries = false;
  1655. options.pickBestEngine = false;
  1656. options.minimizeWorkunitTemporaries = true;
  1657. }
  1658. void HqlCppTranslator::overrideOptionsForQuery()
  1659. {
  1660. options.workunitTemporaries = getDebugFlag("workunitTemporaries", true);
  1661. options.pickBestEngine = getDebugFlag("pickBestEngine", true);
  1662. options.minimizeWorkunitTemporaries = !options.workunitTemporaries || getDebugFlag("minimizeWorkunitTemporaries", false);//options.resourceConditionalActions);
  1663. }
  1664. bool HqlCppTranslator::needToSerializeToSlave(IHqlExpression * expr) const
  1665. {
  1666. if (targetThor())
  1667. return true;
  1668. switch (expr->getOperator())
  1669. {
  1670. case no_getresult:
  1671. case no_workunit_dataset:
  1672. return !matchesConstantValue(queryAttributeChild(expr, sequenceAtom, 0), ResultSequenceOnce);
  1673. default:
  1674. return true;
  1675. }
  1676. }
  1677. IHqlExpression *HqlCppTranslator::addBigLiteral(const char *lit, unsigned litLen)
  1678. {
  1679. unsigned resid = code->addStringResource(litLen, lit);
  1680. HqlExprArray args;
  1681. args.append(*getSizetConstant(resid));
  1682. return bindTranslatedFunctionCall(loadResourceId, args);
  1683. }
  1684. IHqlExpression * HqlCppTranslator::addLiteral(const char * text)
  1685. {
  1686. return createConstant(text);
  1687. }
  1688. IHqlExpression *HqlCppTranslator::addDataLiteral(const char *lit, unsigned litLen)
  1689. {
  1690. if (!canGenerateStringInline(litLen))
  1691. return addBigLiteral(lit, litLen);
  1692. else
  1693. return createConstant(createStringValue(lit, litLen));
  1694. }
  1695. IHqlExpression *HqlCppTranslator::addStringLiteral(const char *lit)
  1696. {
  1697. unsigned litLen = strlen(lit);
  1698. if (!canGenerateStringInline(litLen))
  1699. return addBigLiteral(lit, litLen+1);
  1700. else
  1701. return createConstant(createStringValue(lit, litLen));
  1702. }
  1703. bool HqlCppTranslator::allowEmbeddedCpp()
  1704. {
  1705. if (!checkedEmbeddedCpp)
  1706. {
  1707. cachedAllowEmbeddedCpp = ctxCallback->allowAccess("cpp");
  1708. checkedEmbeddedCpp = true;
  1709. }
  1710. return cachedAllowEmbeddedCpp;
  1711. }
  1712. void HqlCppTranslator::checkPipeAllowed()
  1713. {
  1714. if (!checkedPipeAllowed)
  1715. {
  1716. if (!ctxCallback->allowAccess("pipe"))
  1717. throwError(HQLERR_PipeNotAllowed);
  1718. checkedPipeAllowed = true;
  1719. }
  1720. }
  1721. IHqlExpression * HqlCppTranslator::bindFunctionCall(IIdAtom * name, HqlExprArray & args)
  1722. {
  1723. OwnedHqlExpr function = needFunction(name);
  1724. assertex(function != NULL);
  1725. return bindFunctionCall(function, args);
  1726. }
  1727. IHqlExpression * HqlCppTranslator::bindFunctionCall(IIdAtom * name, IHqlExpression * arg1)
  1728. {
  1729. HqlExprArray args;
  1730. args.append(*arg1);
  1731. return bindFunctionCall(name, args);
  1732. }
  1733. IHqlExpression * HqlCppTranslator::bindFunctionCall(IHqlExpression * function, HqlExprArray & args)
  1734. {
  1735. useFunction(function);
  1736. IHqlExpression * ret = createBoundFunction(NULL, function, args, NULL, false);
  1737. assertex(ret->queryExternalDefinition());
  1738. args.kill();
  1739. return ret;
  1740. }
  1741. IHqlExpression * HqlCppTranslator::bindFunctionCall(IIdAtom * name, HqlExprArray & args, ITypeInfo * newType)
  1742. {
  1743. if (!newType)
  1744. return bindFunctionCall(name, args);
  1745. OwnedHqlExpr function = needFunction(name);
  1746. useFunction(function);
  1747. assertex(function->getOperator() == no_funcdef);
  1748. IHqlExpression * body = function->queryChild(0);
  1749. HqlExprArray bodyArgs;
  1750. unwindChildren(bodyArgs, body);
  1751. HqlExprArray funcArgs;
  1752. funcArgs.append(*createValue(body->getOperator(), LINK(newType), bodyArgs));
  1753. unwindChildren(funcArgs, function, 1);
  1754. ITypeInfo * funcType = makeFunctionType(LINK(newType), LINK(function->queryChild(1)), LINK(function->queryChild(2)));
  1755. OwnedHqlExpr newFunction = createValue(function->getOperator(), funcType, funcArgs);
  1756. return bindFunctionCall(newFunction, args);
  1757. }
  1758. IHqlExpression * HqlCppTranslator::bindTranslatedFunctionCall(IHqlExpression * function, HqlExprArray & args)
  1759. {
  1760. useFunction(function);
  1761. IHqlExpression * ret = createTranslatedExternalCall(NULL, function, args);
  1762. assertex(ret->queryExternalDefinition());
  1763. args.kill();
  1764. return ret;
  1765. }
  1766. IHqlExpression * HqlCppTranslator::bindTranslatedFunctionCall(IIdAtom * name, HqlExprArray & args)
  1767. {
  1768. OwnedHqlExpr function = needFunction(name);
  1769. return bindTranslatedFunctionCall(function, args);
  1770. }
  1771. void HqlCppTranslator::buildTranslatedFunctionCall(BuildCtx & ctx, IIdAtom * name, HqlExprArray & args)
  1772. {
  1773. OwnedHqlExpr call = bindTranslatedFunctionCall(name, args);
  1774. ctx.addExpr(call);
  1775. }
  1776. void HqlCppTranslator::buildFunctionCall(BuildCtx & ctx, IIdAtom * name, HqlExprArray & args)
  1777. {
  1778. OwnedHqlExpr call = bindFunctionCall(name, args);
  1779. buildStmt(ctx, call);
  1780. }
  1781. /* Args: all elements in it are LINKED */
  1782. void HqlCppTranslator::callProcedure(BuildCtx & ctx, IIdAtom * name, HqlExprArray & args)
  1783. {
  1784. OwnedHqlExpr call = bindTranslatedFunctionCall(name, args);
  1785. assertex(call->queryExternalDefinition());
  1786. ctx.addExpr(call);
  1787. }
  1788. bool HqlCppTranslator::getDebugFlag(const char * name, bool defValue)
  1789. {
  1790. return wu()->getDebugValueBool(name, defValue);
  1791. }
  1792. void HqlCppTranslator::doReportWarning(IHqlExpression * location, unsigned id, const char * msg)
  1793. {
  1794. Owned<IECLError> warnError;
  1795. if (!location)
  1796. location = queryActiveActivityLocation();
  1797. if (location)
  1798. warnError.setown(createECLError(false, id, msg, location->querySourcePath()->str(), location->getStartLine(), location->getStartColumn(), 0));
  1799. else
  1800. warnError.setown(createECLError(false, id, msg, NULL, 0, 0, 0));
  1801. warningProcessor.report(NULL, errors, warnError);
  1802. }
  1803. void HqlCppTranslator::reportWarning(IHqlExpression * location, unsigned id, const char * msg, ...)
  1804. {
  1805. StringBuffer s;
  1806. va_list args;
  1807. va_start(args, msg);
  1808. s.valist_appendf(msg, args);
  1809. va_end(args);
  1810. doReportWarning(location, id, s.str());
  1811. }
  1812. void HqlCppTranslator::reportWarning(unsigned id, const char * msg, ...)
  1813. {
  1814. StringBuffer s;
  1815. va_list args;
  1816. va_start(args, msg);
  1817. s.valist_appendf(msg, args);
  1818. va_end(args);
  1819. doReportWarning(NULL, id, s.str());
  1820. }
  1821. void HqlCppTranslator::addWorkunitException(WUExceptionSeverity severity, unsigned code, const char * text, IHqlExpression * location)
  1822. {
  1823. Owned<IWUException> msg = wu()->createException();
  1824. msg->setExceptionSource("Code Generator");
  1825. if (code)
  1826. msg->setExceptionCode(code);
  1827. msg->setExceptionMessage(text);
  1828. msg->setSeverity(severity);
  1829. msg->setTimeStamp(NULL);
  1830. if (!location)
  1831. location = queryActiveActivityLocation();
  1832. if (location)
  1833. {
  1834. msg->setExceptionFileName(location->querySourcePath()->str());
  1835. msg->setExceptionLineNo(location->getStartLine());
  1836. msg->setExceptionColumn(location->getStartColumn());
  1837. }
  1838. }
  1839. IHqlExpression * HqlCppTranslator::queryActiveNamedActivity()
  1840. {
  1841. ForEachItemInRev(i, activityExprStack)
  1842. {
  1843. IHqlExpression & cur = activityExprStack.item(i);
  1844. IHqlExpression * symbol = queryNamedSymbol(&cur);
  1845. if (symbol && symbol->querySourcePath())
  1846. return symbol;
  1847. if (isCompoundSource(&cur))
  1848. {
  1849. IHqlExpression * child = cur.queryChild(0);
  1850. if (hasNamedSymbol(child))
  1851. return child;
  1852. }
  1853. }
  1854. return NULL;
  1855. }
  1856. IHqlExpression * HqlCppTranslator::queryActiveActivityLocation() const
  1857. {
  1858. ForEachItemInRev(i, activityExprStack)
  1859. {
  1860. IHqlExpression & cur = activityExprStack.item(i);
  1861. IHqlExpression * location = queryLocation(&cur);
  1862. if (location)
  1863. return location;
  1864. if (isCompoundSource(&cur))
  1865. {
  1866. location = queryLocation(cur.queryChild(0));
  1867. if (location)
  1868. return location;
  1869. }
  1870. }
  1871. return NULL;
  1872. }
  1873. void HqlCppTranslator::ThrowStringException(int code,const char *format, ...)
  1874. {
  1875. IHqlExpression * location = queryActiveActivityLocation();
  1876. if (errors && location)
  1877. {
  1878. StringBuffer errorMsg;
  1879. va_list args;
  1880. va_start(args, format);
  1881. errorMsg.valist_appendf(format, args);
  1882. va_end(args);
  1883. throw createECLError(code, errorMsg.str(), location->querySourcePath()->str(), location->getStartLine(), location->getStartColumn(), 0);
  1884. }
  1885. va_list args;
  1886. va_start(args, format);
  1887. IException *ret = MakeStringExceptionVA(code, format, args);
  1888. va_end(args);
  1889. throw ret;
  1890. }
  1891. void HqlCppTranslator::reportErrorDirect(IHqlExpression * location, int code,const char *msg, bool alwaysAbort)
  1892. {
  1893. if (location)
  1894. {
  1895. ECLlocation loc;
  1896. loc.extractLocationAttr(location);
  1897. if (alwaysAbort)
  1898. throw createECLError(code, msg, loc.sourcePath->str(), loc.lineno, loc.column, loc.position);
  1899. errors->reportError(code, msg, loc.sourcePath->str(), loc.lineno, loc.column, loc.position);
  1900. }
  1901. else
  1902. throw MakeStringExceptionDirect(code, msg);
  1903. }
  1904. void HqlCppTranslator::reportError(IHqlExpression * location, int code,const char *format, ...)
  1905. {
  1906. StringBuffer errorMsg;
  1907. va_list args;
  1908. va_start(args, format);
  1909. errorMsg.valist_appendf(format, args);
  1910. va_end(args);
  1911. reportErrorDirect(location, code, errorMsg.str(), true);
  1912. }
  1913. //---------------------------------------------------------------------------
  1914. void HqlCppTranslator::doBuildStmtAssign(BuildCtx & ctx, IHqlExpression * target, IHqlExpression * expr)
  1915. {
  1916. buildAssign(ctx, target, expr);
  1917. }
  1918. void HqlCppTranslator::buildAddress(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  1919. {
  1920. node_operator op = expr->getOperator();
  1921. switch (op)
  1922. {
  1923. case no_address:
  1924. buildExpr(ctx, expr->queryChild(0), tgt);
  1925. break;
  1926. case no_typetransfer:
  1927. buildAddress(ctx, expr->queryChild(0), tgt);
  1928. break;
  1929. default:
  1930. {
  1931. Owned<IReferenceSelector> selector = buildReference(ctx, expr);
  1932. selector->buildAddress(ctx, tgt);
  1933. break;
  1934. }
  1935. }
  1936. }
  1937. bool HqlCppTranslator::hasAddress(BuildCtx & ctx, IHqlExpression * expr)
  1938. {
  1939. switch (expr->getOperator())
  1940. {
  1941. case no_deref:
  1942. case no_variable:
  1943. return true;
  1944. case no_field:
  1945. case no_select:
  1946. {
  1947. Owned<IReferenceSelector> selector = buildReference(ctx, expr);
  1948. return !selector->isConditional();
  1949. }
  1950. case no_typetransfer:
  1951. return hasAddress(ctx, expr->queryChild(0));
  1952. default:
  1953. return false;
  1954. }
  1955. }
  1956. void HqlCppTranslator::buildAssign(BuildCtx & ctx, IHqlExpression * target, IHqlExpression * expr)
  1957. {
  1958. #ifdef ADD_ASSIGNMENT_COMMENTS
  1959. if (target->getOperator() == no_select)
  1960. {
  1961. StringBuffer s;
  1962. ctx.addQuoted(s.append("//Assign to field ").append(target->queryChild(1)->queryName()));
  1963. }
  1964. #endif
  1965. Owned<IReferenceSelector> selector = buildReference(ctx, target);
  1966. if (expr->getOperator() == no_null)
  1967. selector->buildClear(ctx, 0);
  1968. else if (target->isDatarow() && (!hasReferenceModifier(target->queryType()) || !recordTypesMatch(target->queryType(), expr->queryType())))
  1969. buildRowAssign(ctx, selector, expr);
  1970. else
  1971. selector->set(ctx, expr);
  1972. }
  1973. void HqlCppTranslator::doBuildStmtAssignModify(BuildCtx & ctx, IHqlExpression * target, IHqlExpression * expr, node_operator assignOp)
  1974. {
  1975. Owned<IReferenceSelector> selector = buildReference(ctx, target);
  1976. selector->modifyOp(ctx, expr, assignOp);
  1977. }
  1978. void HqlCppTranslator::buildExprAssign(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  1979. {
  1980. /*
  1981. switch (target.queryType().getTypeCode())
  1982. {
  1983. case type_table:
  1984. case type_groupedtable:
  1985. buildDatasetAssign(ctx, target, expr);
  1986. break;
  1987. case type_row:
  1988. buildAssignRow(ctx, target, expr);
  1989. break;
  1990. }
  1991. */
  1992. node_operator op = expr->getOperator();
  1993. switch (op)
  1994. {
  1995. case no_constant:
  1996. if (!isNullAssign(target, expr))
  1997. doBuildExprAssign(ctx, target, expr);
  1998. else
  1999. ctx.addAssign(target.length, queryZero());
  2000. break;
  2001. case no_regex_find:
  2002. case no_regex_replace:
  2003. doBuildAssignRegexFindReplace(ctx, target, expr);
  2004. break;
  2005. case no_matched:
  2006. case no_matchtext:
  2007. case no_matchlength:
  2008. case no_matchposition:
  2009. case no_matchunicode:
  2010. case no_matchutf8:
  2011. doBuildMatched(ctx, &target, expr, NULL);
  2012. break;
  2013. case no_matchattr:
  2014. doBuildMatchAttr(ctx, &target, expr, NULL);
  2015. break;
  2016. case no_loopcounter:
  2017. doBuildAssignLoopCounter(ctx, target, expr);
  2018. break;
  2019. case no_evalonce:
  2020. doBuildEvalOnce(ctx, &target, expr, NULL);
  2021. break;
  2022. case no_alias_scope:
  2023. {
  2024. expandAliasScope(ctx, expr);
  2025. buildExprAssign(ctx, target, expr->queryChild(0));
  2026. break;
  2027. }
  2028. case no_case:
  2029. case no_map:
  2030. {
  2031. HqlCppCaseInfo info(*this);
  2032. doBuildCaseInfo(expr, info);
  2033. info.buildAssign(ctx, target);
  2034. break;
  2035. }
  2036. case no_which:
  2037. case no_rejected:
  2038. doBuildAssignWhich(ctx, target, expr);
  2039. break;
  2040. case no_call:
  2041. case no_externalcall:
  2042. doBuildAssignCall(ctx, target, expr);
  2043. break;
  2044. case no_cast:
  2045. case no_implicitcast:
  2046. doBuildAssignCast(ctx, target, expr);
  2047. break;
  2048. case no_choose:
  2049. doBuildAssignChoose(ctx, target, expr);
  2050. break;
  2051. case no_comma:
  2052. case no_compound:
  2053. buildStmt(ctx, expr->queryChild(0));
  2054. buildExprAssign(ctx, target, expr->queryChild(1));
  2055. break;
  2056. case no_concat:
  2057. doBuildAssignConcat(ctx, target, expr);
  2058. break;
  2059. case no_div:
  2060. case no_modulus:
  2061. doBuildAssignDivide(ctx, target, expr);
  2062. break;
  2063. case no_crc:
  2064. case no_hash:
  2065. case no_hash32:
  2066. case no_hash64:
  2067. doBuildAssignHashCrc(ctx, target, expr);
  2068. break;
  2069. case no_hashmd5:
  2070. doBuildAssignHashMd5(ctx, target, expr);
  2071. break;
  2072. case no_if:
  2073. doBuildAssignIf(ctx, target, expr);
  2074. break;
  2075. case no_index:
  2076. doBuildAssignIndex(ctx, target, expr);
  2077. break;
  2078. case no_in:
  2079. case no_notin:
  2080. {
  2081. OwnedHqlExpr optimized = querySimplifyInExpr(expr);
  2082. if (optimized)
  2083. {
  2084. OwnedHqlExpr folded = foldHqlExpression(optimized);
  2085. buildExprAssign(ctx, target, folded);
  2086. }
  2087. else
  2088. doBuildAssignIn(ctx, target, expr);
  2089. break;
  2090. }
  2091. case no_intformat:
  2092. doBuildAssignFormat(intFormatId, ctx, target, expr);
  2093. break;
  2094. case no_nofold:
  2095. case no_nohoist:
  2096. case no_section:
  2097. case no_sectioninput:
  2098. buildExprAssign(ctx, target, expr->queryChild(0));
  2099. break;
  2100. case no_realformat:
  2101. doBuildAssignFormat(realFormatId, ctx, target, expr);
  2102. break;
  2103. case no_order:
  2104. doBuildAssignOrder(ctx, target, expr);
  2105. break;
  2106. case no_unicodeorder:
  2107. doBuildAssignUnicodeOrder(ctx, target, expr);
  2108. break;
  2109. case no_substring:
  2110. doBuildAssignSubString(ctx, target, expr);
  2111. break;
  2112. case no_trim:
  2113. doBuildAssignTrim(ctx, target, expr);
  2114. break;
  2115. case no_field:
  2116. throwUnexpected();
  2117. case no_select:
  2118. {
  2119. OwnedHqlExpr aggregate = convertToSimpleAggregate(expr);
  2120. if (aggregate && canProcessInline(&ctx, aggregate->queryChild(0)))
  2121. {
  2122. buildExprAssign(ctx, target, aggregate);
  2123. return;
  2124. }
  2125. Owned<IReferenceSelector> selector = buildReference(ctx, expr);
  2126. selector->assignTo(ctx, target);
  2127. return;
  2128. }
  2129. break;
  2130. case no_not:
  2131. {
  2132. IHqlExpression * child = expr->queryChild(0);
  2133. node_operator childOp = child->getOperator();
  2134. if (((childOp == no_and) || (childOp == no_or)) && requiresTempAfterFirst(ctx, child))
  2135. {
  2136. if (childOp == no_and)
  2137. doBuildAssignAnd(ctx, target, child, true);
  2138. else
  2139. {
  2140. OwnedHqlExpr inverted = convertOrToAnd(expr);
  2141. buildExprAssign(ctx, target, inverted);
  2142. }
  2143. }
  2144. else
  2145. doBuildExprAssign(ctx, target, expr);
  2146. break;
  2147. }
  2148. case no_or:
  2149. {
  2150. IHqlExpression * left = expr->queryChild(0);
  2151. //in always goes via an assign, so do this first, and then filter on result.
  2152. if (left->getOperator() == no_in)
  2153. {
  2154. BuildCtx subctx(ctx);
  2155. buildExprAssign(subctx, target, left);
  2156. OwnedHqlExpr inverse = getInverse(target.expr);
  2157. subctx.addFilter(inverse);
  2158. buildExprAssign(subctx, target, expr->queryChild(1));
  2159. }
  2160. else if (requiresTempAfterFirst(ctx, expr))
  2161. {
  2162. OwnedHqlExpr inverted = convertOrToAnd(expr);
  2163. buildExprAssign(ctx, target, inverted);
  2164. }
  2165. else
  2166. doBuildExprAssign(ctx, target, expr);
  2167. break;
  2168. }
  2169. case no_and:
  2170. if (requiresTempAfterFirst(ctx, expr))
  2171. doBuildAssignAnd(ctx, target, expr, false);
  2172. else
  2173. doBuildExprAssign(ctx, target, expr);
  2174. break;
  2175. case no_fromunicode:
  2176. case no_tounicode:
  2177. doBuildAssignToFromUnicode(ctx, target, expr);
  2178. break;
  2179. case no_toxml:
  2180. doBuildAssignToXml(ctx, target, expr);
  2181. break;
  2182. case no_wuid:
  2183. doBuildAssignWuid(ctx, target, expr);
  2184. break;
  2185. case no_xmldecode:
  2186. case no_xmlencode:
  2187. doBuildXmlEncode(ctx, &target, expr, NULL);
  2188. break;
  2189. case no_all:
  2190. doBuildAssignAll(ctx, target, expr);
  2191. return;
  2192. case no_list:
  2193. doBuildAssignList(ctx, target, expr);
  2194. return;
  2195. case no_addsets:
  2196. doBuildAssignAddSets(ctx, target, expr);
  2197. return;
  2198. case no_createset:
  2199. buildSetAssignViaBuilder(ctx, target, expr);
  2200. return;
  2201. case no_failmessage:
  2202. doBuildAssignFailMessage(ctx, target, expr);
  2203. return;
  2204. case no_eventname:
  2205. doBuildAssignEventName(ctx, target, expr);
  2206. return;
  2207. case no_eventextra:
  2208. doBuildAssignEventExtra(ctx, target, expr);
  2209. return;
  2210. case no_catch:
  2211. doBuildAssignCatch(ctx, target, expr);
  2212. break;
  2213. case no_id2blob:
  2214. doBuildAssignIdToBlob(ctx, target, expr);
  2215. break;
  2216. case no_getresult:
  2217. case no_workunit_dataset:
  2218. if (isSameFullyUnqualifiedType(expr->queryType(), target.queryType()))
  2219. doBuildAssignGetResult(ctx, target, expr);
  2220. else
  2221. doBuildExprAssign(ctx, target, expr);
  2222. break;
  2223. case no_getgraphresult:
  2224. doBuildAssignGetGraphResult(ctx, target, expr);
  2225. break;
  2226. case no_existslist:
  2227. doBuildAggregateList(ctx, &target, expr, NULL);
  2228. break;
  2229. case no_countlist:
  2230. doBuildAggregateList(ctx, &target, expr, NULL);
  2231. break;
  2232. case no_sumlist:
  2233. doBuildAggregateList(ctx, &target, expr, NULL);
  2234. break;
  2235. case no_minlist:
  2236. doBuildAggregateList(ctx, &target, expr, NULL);
  2237. break;
  2238. case no_maxlist:
  2239. doBuildAggregateList(ctx, &target, expr, NULL);
  2240. break;
  2241. case no_skip:
  2242. {
  2243. bool canReachFollowing = false;
  2244. doBuildStmtSkip(ctx, expr, &canReachFollowing);
  2245. if (canReachFollowing)
  2246. {
  2247. OwnedHqlExpr null = createNullExpr(expr);
  2248. doBuildExprAssign(ctx, target, null);
  2249. }
  2250. break;
  2251. }
  2252. case no_count:
  2253. case no_max:
  2254. case no_min:
  2255. case no_sum:
  2256. case no_exists:
  2257. doBuildAssignAggregate(ctx, target, expr);
  2258. break;
  2259. case no_getenv:
  2260. {
  2261. OwnedHqlExpr mapped = cvtGetEnvToCall(expr);
  2262. buildExprAssign(ctx, target, mapped);
  2263. break;
  2264. }
  2265. default:
  2266. doBuildExprAssign(ctx, target, expr);
  2267. break;
  2268. }
  2269. }
  2270. void HqlCppTranslator::buildExprAssignViaType(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr, ITypeInfo * type)
  2271. {
  2272. OwnedHqlExpr temp = createValue(no_implicitcast, LINK(type), LINK(expr));
  2273. buildExprAssign(ctx, target, temp);
  2274. }
  2275. void HqlCppTranslator::buildExprAssignViaString(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr, unsigned len)
  2276. {
  2277. OwnedITypeInfo type = makeStringType(len, NULL, NULL);
  2278. buildExprAssignViaType(ctx, target, expr, type);
  2279. }
  2280. void HqlCppTranslator::buildAssignToTemp(BuildCtx & ctx, IHqlExpression * variable, IHqlExpression * expr)
  2281. {
  2282. CHqlBoundTarget boundTarget;
  2283. boundTarget.expr.set(variable);
  2284. buildExprAssign(ctx, boundTarget, expr);
  2285. }
  2286. void HqlCppTranslator::buildAssignViaTemp(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  2287. {
  2288. CHqlBoundExpr temp;
  2289. buildTempExpr(ctx, expr, temp);
  2290. buildExprAssign(ctx, target, temp.expr);
  2291. }
  2292. static bool canOptimizeIncrementAssign(ITypeInfo * type)
  2293. {
  2294. switch (type->getTypeCode())
  2295. {
  2296. case type_real:
  2297. return true;
  2298. case type_int:
  2299. switch (type->getSize())
  2300. {
  2301. case 1:
  2302. case 2:
  2303. case 4:
  2304. case 8:
  2305. return true;
  2306. }
  2307. }
  2308. return false;
  2309. }
  2310. IHqlExpression * HqlCppTranslator::optimizeIncrementAssign(BuildCtx & ctx, IHqlExpression * value)
  2311. {
  2312. //MORE: Could spot x += if(cond, y, 0) and convert to if (cond) x+= y; (especially if y is 1)
  2313. if (value->getOperator() == no_if)
  2314. {
  2315. IHqlExpression * left = value->queryChild(1);
  2316. IHqlExpression * right = value->queryChild(2);
  2317. if (isZero(right))
  2318. {
  2319. buildFilter(ctx, value->queryChild(0));
  2320. return optimizeIncrementAssign(ctx, left);
  2321. }
  2322. if (isZero(left))
  2323. {
  2324. OwnedHqlExpr filter = getInverse(value->queryChild(0));
  2325. buildFilter(ctx, filter);
  2326. return optimizeIncrementAssign(ctx, right);
  2327. }
  2328. }
  2329. if (isCast(value))
  2330. {
  2331. IHqlExpression * uncast = value->queryChild(0);
  2332. OwnedHqlExpr optimizedValue = optimizeIncrementAssign(ctx, uncast);
  2333. if (optimizedValue != uncast)
  2334. return ensureExprType(optimizedValue, value->queryType());
  2335. }
  2336. return LINK(value);
  2337. }
  2338. void HqlCppTranslator::buildIncrementAssign(BuildCtx & ctx, IHqlExpression * target, IHqlExpression * value)
  2339. {
  2340. // CHqlBoundExpr bound;
  2341. // buildExpr(ctx, target, bound);
  2342. ITypeInfo * type = target->queryType();
  2343. OwnedHqlExpr castValue = ensureExprType(value, type);
  2344. BuildCtx condctx(ctx);
  2345. if (options.optimizeIncrement)
  2346. {
  2347. castValue.setown(optimizeIncrementAssign(condctx, castValue));
  2348. if (isZero(castValue))
  2349. return;
  2350. if (canOptimizeIncrementAssign(type))
  2351. {
  2352. CHqlBoundExpr boundTarget;
  2353. buildExpr(condctx, target, boundTarget); // Not very clean!
  2354. CHqlBoundExpr boundValue;
  2355. buildExpr(condctx, castValue, boundValue);
  2356. condctx.addAssignIncrement(boundTarget.expr, boundValue.expr);
  2357. return;
  2358. }
  2359. }
  2360. OwnedHqlExpr plus = createValue(no_add, LINK(target), castValue.getClear());
  2361. buildAssign(condctx, target, plus);
  2362. }
  2363. void HqlCppTranslator::buildIncrementAssign(BuildCtx & ctx, IReferenceSelector * target, IHqlExpression * value)
  2364. {
  2365. buildIncrementAssign(ctx, target->queryExpr(), value);
  2366. // OwnedHqlExpr plus = createValue(no_add, LINK(type), ensureExprType(target->queryExpr(), type), ensureExprType(value, type));
  2367. // target->set(condctx, plus);
  2368. }
  2369. void HqlCppTranslator::buildIncrementAssign(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * value)
  2370. {
  2371. ITypeInfo * type = target.queryType();
  2372. OwnedHqlExpr castValue = ensureExprType(value, type);
  2373. BuildCtx condctx(ctx);
  2374. if (options.optimizeIncrement)
  2375. {
  2376. castValue.setown(optimizeIncrementAssign(condctx, castValue));
  2377. if (isZero(castValue))
  2378. return;
  2379. if (canOptimizeIncrementAssign(type))
  2380. {
  2381. CHqlBoundExpr boundValue;
  2382. buildExpr(ctx, castValue, boundValue);
  2383. ctx.addAssignIncrement(target.expr, boundValue.expr);
  2384. return;
  2385. }
  2386. }
  2387. OwnedHqlExpr plus = createValue(no_add, target.getTranslatedExpr(), castValue.getClear());
  2388. buildExprAssign(ctx, target, plus);
  2389. }
  2390. void HqlCppTranslator::buildClear(BuildCtx & ctx, IHqlExpression * expr)
  2391. {
  2392. OwnedHqlExpr null = createNullExpr(expr);
  2393. buildAssign(ctx, expr, null);
  2394. }
  2395. void HqlCppTranslator::buildClear(BuildCtx & ctx, const CHqlBoundTarget & target)
  2396. {
  2397. if (target.length)
  2398. {
  2399. buildAssignToTemp(ctx, target.length, queryZero());
  2400. //NB: Don't need to clear target.pointer/target.variable if a length is defined......
  2401. return;
  2402. }
  2403. if (target.isFixedSize())
  2404. {
  2405. OwnedHqlExpr null = createNullExpr(target.expr);
  2406. buildExprAssign(ctx, target, null);
  2407. }
  2408. else
  2409. {
  2410. StringBuffer code;
  2411. if (hasWrapperModifier(target.queryType()))
  2412. generateExprCpp(code, target.expr).append(".clear();");
  2413. else
  2414. generateExprCpp(code, target.expr).append(" = 0;");
  2415. ctx.addQuoted(code);
  2416. }
  2417. }
  2418. void HqlCppTranslator::buildFilter(BuildCtx & ctx, IHqlExpression * expr)
  2419. {
  2420. node_operator op = expr->getOperator();
  2421. switch (op)
  2422. {
  2423. case no_attr:
  2424. case no_attr_expr:
  2425. case no_attr_link:
  2426. return;
  2427. case no_and:
  2428. doBuildFilterAnd(ctx, expr);
  2429. return;
  2430. case no_not:
  2431. {
  2432. IHqlExpression * child = expr->queryChild(0);
  2433. if ((child->getOperator() == no_or) && requiresTempAfterFirst(ctx, child))
  2434. {
  2435. OwnedHqlExpr inverted = convertOrToAnd(expr);
  2436. buildFilter(ctx,inverted);
  2437. return;
  2438. }
  2439. }
  2440. break;
  2441. case no_or:
  2442. if (!(hints & HintSize) && requiresTempAfterFirst(ctx, expr))
  2443. {
  2444. OwnedHqlExpr inverted = convertOrToAnd(expr);
  2445. buildFilter(ctx, inverted);
  2446. return;
  2447. }
  2448. break;
  2449. case no_between:
  2450. case no_notbetween:
  2451. {
  2452. OwnedHqlExpr between = expandBetween(expr);
  2453. buildFilter(ctx, between);
  2454. return;
  2455. }
  2456. case no_alias_scope:
  2457. {
  2458. expandAliasScope(ctx, expr);
  2459. buildFilter(ctx, expr->queryChild(0));
  2460. return;
  2461. }
  2462. case no_compound:
  2463. {
  2464. buildStmt(ctx, expr->queryChild(0));
  2465. buildFilter(ctx, expr->queryChild(1));
  2466. break;
  2467. }
  2468. }
  2469. buildFilterViaExpr(ctx, expr);
  2470. }
  2471. IHqlStmt * HqlCppTranslator::buildFilterViaExpr(BuildCtx & ctx, IHqlExpression * expr)
  2472. {
  2473. //default action...
  2474. CHqlBoundExpr pure;
  2475. buildExpr(ctx, expr, pure);
  2476. if (pure.length) // check length is non zero
  2477. return ctx.addFilter(pure.length);
  2478. else
  2479. {
  2480. IHqlStmt * stmt = ctx.addFilter(pure.expr);
  2481. ctx.associateExpr(expr, queryBoolExpr(true));
  2482. return stmt;
  2483. }
  2484. }
  2485. void HqlCppTranslator::tidyupExpr(BuildCtx & ctx, CHqlBoundExpr & bound)
  2486. {
  2487. if (isPushed(bound))
  2488. {
  2489. HqlExprArray args;
  2490. callProcedure(ctx, DecPopLongId, args);
  2491. bound.expr.set(NULL);
  2492. }
  2493. }
  2494. void HqlCppTranslator::expandTranslated(IHqlExpression * expr, CHqlBoundExpr & tgt)
  2495. {
  2496. tgt.setFromTranslated(expr);
  2497. }
  2498. void HqlCppTranslator::buildCachedExpr(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  2499. {
  2500. buildExpr(ctx, expr, tgt);
  2501. }
  2502. void HqlCppTranslator::buildAnyExpr(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  2503. {
  2504. if (expr->isDataset())
  2505. buildDataset(ctx, expr, tgt, FormatNatural);
  2506. else if (expr->isDatarow())
  2507. {
  2508. Owned<IReferenceSelector> selector = buildNewRow(ctx, expr);
  2509. selector->buildAddress(ctx, tgt);
  2510. }
  2511. else
  2512. buildExpr(ctx, expr, tgt);
  2513. }
  2514. void HqlCppTranslator::buildExpr(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  2515. {
  2516. node_operator op = expr->getOperator();
  2517. switch (op)
  2518. {
  2519. case no_counter:
  2520. doBuildExprCounter(ctx, expr, tgt);
  2521. return;
  2522. case no_evaluate:
  2523. doBuildExprEvaluate(ctx, expr, tgt);
  2524. return;
  2525. case no_thor:
  2526. throwUnexpected();
  2527. // assertex(expr->queryType()->isScalar());
  2528. // buildExpr(ctx, expr->queryChild(0), tgt);
  2529. return;
  2530. case no_count:
  2531. if (!(expr->isPure() && ctx.getMatchExpr(expr, tgt)))
  2532. doBuildExprCount(ctx, expr, tgt);
  2533. return;
  2534. case no_max:
  2535. case no_min:
  2536. case no_sum:
  2537. if (!(expr->isPure() && ctx.getMatchExpr(expr, tgt)))
  2538. doBuildExprAggregate(ctx, expr, tgt);
  2539. return;
  2540. case no_exists:
  2541. if (!(expr->isPure() && ctx.getMatchExpr(expr, tgt)))
  2542. doBuildExprExists(ctx, expr, tgt);
  2543. return;
  2544. case no_countdict:
  2545. if (!(expr->isPure() && ctx.getMatchExpr(expr, tgt)))
  2546. doBuildExprCountDict(ctx, expr, tgt);
  2547. return;
  2548. case no_existsdict:
  2549. if (!(expr->isPure() && ctx.getMatchExpr(expr, tgt)))
  2550. doBuildExprExistsDict(ctx, expr, tgt);
  2551. return;
  2552. case no_existslist:
  2553. doBuildAggregateList(ctx, NULL, expr, &tgt);
  2554. return;
  2555. case no_countlist:
  2556. doBuildAggregateList(ctx, NULL, expr, &tgt);
  2557. return;
  2558. case no_sumlist:
  2559. doBuildAggregateList(ctx, NULL, expr, &tgt);
  2560. return;
  2561. case no_minlist:
  2562. doBuildAggregateList(ctx, NULL, expr, &tgt);
  2563. return;
  2564. case no_maxlist:
  2565. doBuildAggregateList(ctx, NULL, expr, &tgt);
  2566. return;
  2567. case no_sizeof:
  2568. doBuildExprSizeof(ctx, expr, tgt);
  2569. return;
  2570. case no_filepos:
  2571. doBuildExprFilepos(ctx, expr, tgt);
  2572. return;
  2573. case no_file_logicalname:
  2574. doBuildExprFileLogicalName(ctx, expr, tgt);
  2575. return;
  2576. case no_getresult:
  2577. case no_workunit_dataset:
  2578. doBuildExprGetResult(ctx, expr, tgt);
  2579. return;
  2580. case no_getgraphresult:
  2581. doBuildExprGetGraphResult(ctx, expr, tgt, FormatNatural);
  2582. return;
  2583. case no_regex_find:
  2584. case no_regex_replace:
  2585. doBuildExprRegexFindReplace(ctx, expr, tgt);
  2586. return;
  2587. case no_skip:
  2588. case no_assert:
  2589. {
  2590. buildStmt(ctx, expr);
  2591. OwnedHqlExpr null = createNullExpr(expr);
  2592. buildExpr(ctx, null, tgt);
  2593. return;
  2594. }
  2595. case no_matched:
  2596. case no_matchtext:
  2597. case no_matchlength:
  2598. case no_matchposition:
  2599. case no_matchunicode:
  2600. case no_matchutf8:
  2601. doBuildMatched(ctx, NULL, expr, &tgt);
  2602. return;
  2603. case no_matchattr:
  2604. doBuildMatchAttr(ctx, NULL, expr, &tgt);
  2605. return;
  2606. case no_rowdiff:
  2607. doBuildExprRowDiff(ctx, expr, tgt);
  2608. return;
  2609. case no_xmltext:
  2610. doBuildExprXmlText(ctx, expr, tgt);
  2611. return;
  2612. case no_xmlunicode:
  2613. doBuildExprXmlUnicode(ctx, expr, tgt);
  2614. return;
  2615. case no_evalonce:
  2616. doBuildEvalOnce(ctx, NULL, expr, &tgt);
  2617. return;
  2618. case no_alias:
  2619. doBuildExprAlias(ctx, expr, &tgt);
  2620. return;
  2621. case no_alias_scope:
  2622. {
  2623. expandAliasScope(ctx, expr);
  2624. buildExpr(ctx, expr->queryChild(0), tgt);
  2625. return;
  2626. }
  2627. case no_between:
  2628. case no_notbetween:
  2629. {
  2630. OwnedHqlExpr between = expandBetween(expr);
  2631. buildExpr(ctx, between, tgt);
  2632. return;
  2633. }
  2634. case no_libraryinput:
  2635. doBuildAliasValue(ctx, expr, tgt);
  2636. return;
  2637. case no_externalcall:
  2638. case no_call:
  2639. doBuildExprCall(ctx, expr, tgt);
  2640. return;
  2641. case no_comma:
  2642. case no_compound:
  2643. buildStmt(ctx, expr->queryChild(0));
  2644. buildExpr(ctx, expr->queryChild(1), tgt);
  2645. return;
  2646. case no_cast:
  2647. case no_implicitcast:
  2648. doBuildExprCast(ctx, expr, tgt);
  2649. return;
  2650. case no_charlen:
  2651. tgt.expr.setown(doBuildCharLength(ctx, expr->queryChild(0)));
  2652. return;
  2653. case no_add:
  2654. doBuildExprAdd(ctx, expr, tgt);
  2655. return;
  2656. case no_mul:
  2657. case no_sub:
  2658. doBuildExprArith(ctx, expr, tgt);
  2659. return;
  2660. case no_abs:
  2661. doBuildExprAbs(ctx, expr, tgt);
  2662. return;
  2663. case no_negate:
  2664. doBuildExprNegate(ctx, expr, tgt);
  2665. return;
  2666. case no_div:
  2667. case no_modulus:
  2668. doBuildExprDivide(ctx, expr, tgt);
  2669. return;
  2670. case no_if:
  2671. doBuildExprIf(ctx, expr, tgt);
  2672. return;
  2673. case no_index:
  2674. doBuildExprIndex(ctx, expr, tgt);
  2675. return;
  2676. case no_list:
  2677. doBuildExprList(ctx, expr, tgt);
  2678. return;
  2679. case no_all:
  2680. doBuildExprAll(ctx, expr, tgt);
  2681. return;
  2682. case no_trim:
  2683. doBuildExprTrim(ctx, expr, tgt);
  2684. return;
  2685. case no_intformat:
  2686. doBuildExprFormat(intFormatId, ctx, expr, tgt);
  2687. return;
  2688. case no_realformat:
  2689. doBuildExprFormat(realFormatId, ctx, expr, tgt);
  2690. return;
  2691. case no_exp:
  2692. doBuildExprSysFunc(ctx, expr, tgt, clibExpId);
  2693. return;
  2694. case no_ln:
  2695. doBuildExprSysFunc(ctx, expr, tgt, lnId);
  2696. return;
  2697. case no_sin:
  2698. doBuildExprSysFunc(ctx, expr, tgt, sinId);
  2699. return;
  2700. case no_cos:
  2701. doBuildExprSysFunc(ctx, expr, tgt, cosId);
  2702. return;
  2703. case no_tan:
  2704. doBuildExprSysFunc(ctx, expr, tgt, tanId);
  2705. return;
  2706. case no_asin:
  2707. doBuildExprSysFunc(ctx, expr, tgt, asinId);
  2708. return;
  2709. case no_acos:
  2710. doBuildExprSysFunc(ctx, expr, tgt, acosId);
  2711. return;
  2712. case no_atan:
  2713. doBuildExprSysFunc(ctx, expr, tgt, atanId);
  2714. return;
  2715. case no_atan2:
  2716. doBuildExprSysFunc(ctx, expr, tgt, atan2Id);
  2717. return;
  2718. case no_sinh:
  2719. doBuildExprSysFunc(ctx, expr, tgt, sinhId);
  2720. return;
  2721. case no_cosh:
  2722. doBuildExprSysFunc(ctx, expr, tgt, coshId);
  2723. return;
  2724. case no_tanh:
  2725. doBuildExprSysFunc(ctx, expr, tgt, tanhId);
  2726. return;
  2727. case no_log10:
  2728. doBuildExprSysFunc(ctx, expr, tgt, log10Id);
  2729. return;
  2730. case no_power:
  2731. doBuildExprSysFunc(ctx, expr, tgt, powerId);
  2732. return;
  2733. case no_fail:
  2734. doBuildStmtFail(ctx, expr);
  2735. tgt.expr.setown(createConstant(0));
  2736. return;
  2737. case no_failcode:
  2738. doBuildExprFailCode(ctx, expr, tgt);
  2739. return;
  2740. case no_ordered:
  2741. doBuildExprOrdered(ctx, expr, tgt);
  2742. return;
  2743. case no_random:
  2744. doBuildExprSysFunc(ctx, expr, tgt, rtlRandomId);
  2745. return;
  2746. case no_rank:
  2747. doBuildExprRank(ctx, expr, tgt);
  2748. return;
  2749. case no_ranked:
  2750. doBuildExprRanked(ctx, expr, tgt);
  2751. return;
  2752. case no_round:
  2753. case no_roundup:
  2754. doBuildExprRound(ctx, expr, tgt);
  2755. return;
  2756. case no_sqrt:
  2757. doBuildExprSysFunc(ctx, expr, tgt, sqrtId);
  2758. return;
  2759. case no_truncate:
  2760. doBuildExprTrunc(ctx, expr, tgt);
  2761. return;
  2762. case no_offsetof:
  2763. doBuildExprOffsetOf(ctx, expr, tgt);
  2764. return;
  2765. case no_substring:
  2766. doBuildExprSubString(ctx, expr, tgt);
  2767. return;
  2768. case no_in:
  2769. case no_notin:
  2770. {
  2771. if (expr->queryChild(1)->getOperator() == no_all)
  2772. tgt.expr.setown(createConstant(op == no_in));
  2773. else
  2774. {
  2775. OwnedHqlExpr optimized = querySimplifyInExpr(expr);
  2776. if (optimized)
  2777. {
  2778. OwnedHqlExpr folded = foldHqlExpression(optimized);
  2779. buildExpr(ctx, folded, tgt);
  2780. }
  2781. else
  2782. buildTempExpr(ctx, expr, tgt);
  2783. }
  2784. return;
  2785. }
  2786. case no_indict:
  2787. doBuildExprInDict(ctx, expr, tgt);
  2788. return;
  2789. case no_case:
  2790. case no_choose:
  2791. case no_concat:
  2792. case no_crc:
  2793. case no_hash:
  2794. case no_hash32:
  2795. case no_hash64:
  2796. case no_hashmd5:
  2797. case no_map:
  2798. case no_order:
  2799. case no_unicodeorder:
  2800. case no_rejected:
  2801. case no_which:
  2802. case no_addsets:
  2803. case no_createset:
  2804. case no_catch:
  2805. case no_failmessage:
  2806. case no_eventname:
  2807. case no_eventextra:
  2808. case no_loopcounter:
  2809. case no_toxml:
  2810. buildTempExpr(ctx, expr, tgt);
  2811. return;
  2812. case no_asstring:
  2813. case no_typetransfer:
  2814. doBuildExprTransfer(ctx, expr, tgt);
  2815. return;
  2816. case no_translated:
  2817. {
  2818. expandTranslated(expr, tgt);
  2819. return;
  2820. }
  2821. case no_eq:
  2822. case no_ne:
  2823. case no_le:
  2824. case no_lt:
  2825. case no_ge:
  2826. case no_gt:
  2827. if (options.expressionPeephole)
  2828. {
  2829. OwnedHqlExpr optimized = peepholeOptimize(ctx, expr);
  2830. if (optimized != expr)
  2831. {
  2832. buildExpr(ctx, optimized, tgt);
  2833. return;
  2834. }
  2835. }
  2836. doBuildExprCompare(ctx, expr, tgt);
  2837. return;
  2838. case no_wuid:
  2839. doBuildExprWuid(ctx, expr, tgt);
  2840. return;
  2841. case no_getenv:
  2842. {
  2843. OwnedHqlExpr mapped = cvtGetEnvToCall(expr);
  2844. buildExpr(ctx, mapped, tgt);
  2845. return;
  2846. }
  2847. case no_notnot:
  2848. {
  2849. OwnedHqlExpr castChild = ensureExprType(expr->queryChild(0), queryBoolType());
  2850. buildExpr(ctx, castChild, tgt);
  2851. }
  2852. return;
  2853. case no_not:
  2854. {
  2855. IHqlExpression * child = expr->queryChild(0);
  2856. node_operator childOp = child->getOperator();
  2857. if (((childOp == no_and) || (childOp == no_or)) && requiresTempAfterFirst(ctx, child))
  2858. buildTempExpr(ctx, expr, tgt);
  2859. else
  2860. doBuildExprNot(ctx, expr, tgt);
  2861. return;
  2862. }
  2863. case no_constant:
  2864. {
  2865. ITypeInfo * type = expr->queryType();
  2866. if ((options.inlineStringThreshold > 0) && (type->getSize() > options.inlineStringThreshold) && (type->getSize() != UNKNOWN_LENGTH))
  2867. {
  2868. IHqlExpression * literal = addBigLiteral((const char *)expr->queryValue()->queryValue(), type->getSize());
  2869. Owned<ITypeInfo> retType = makeReferenceModifier(LINK(type));
  2870. switch (type->getTypeCode())
  2871. {
  2872. case type_unicode:
  2873. case type_varunicode:
  2874. case type_utf8:
  2875. literal = createValue(no_implicitcast, LINK(retType), literal);
  2876. break;
  2877. }
  2878. if (literal->queryType() != retType)
  2879. literal = createValue(no_typetransfer, LINK(retType), literal);
  2880. tgt.expr.setown(literal);
  2881. }
  2882. else
  2883. tgt.expr.set(expr);
  2884. return;
  2885. }
  2886. case no_quoted:
  2887. case no_variable:
  2888. tgt.expr.set(expr);
  2889. return;
  2890. case no_globalscope:
  2891. if (options.regressionTest)
  2892. throwUnexpected();
  2893. buildExpr(ctx, expr->queryChild(0), tgt);
  2894. return;
  2895. case no_nothor:
  2896. case no_nofold:
  2897. case no_nohoist:
  2898. case no_section:
  2899. case no_sectioninput:
  2900. case no_pure:
  2901. buildExpr(ctx, expr->queryChild(0), tgt);
  2902. return;
  2903. case no_band:
  2904. case no_bor:
  2905. case no_bnot:
  2906. case no_bxor:
  2907. case no_lshift:
  2908. case no_rshift:
  2909. doBuildPureSubExpr(ctx, expr, tgt);
  2910. return;
  2911. //MORE: Shouldn't these be special cased?
  2912. case no_xor:
  2913. doBuildPureSubExpr(ctx, expr, tgt);
  2914. return;
  2915. case no_select:
  2916. {
  2917. OwnedHqlExpr aggregate = convertToSimpleAggregate(expr);
  2918. if (aggregate && canProcessInline(&ctx, aggregate->queryChild(0)))
  2919. {
  2920. buildExpr(ctx, aggregate, tgt);
  2921. return;
  2922. }
  2923. Owned<IReferenceSelector> selector = buildReference(ctx, expr);
  2924. selector->get(ctx, tgt);
  2925. return;
  2926. }
  2927. case no_field:
  2928. throwUnexpected();
  2929. case no_is_null:
  2930. {
  2931. //Until we have something better in place isNull is the inverse of isValid().
  2932. IHqlExpression * child = expr->queryChild(0);
  2933. OwnedHqlExpr null = createValue(no_not, makeBoolType(), createValue(no_is_valid, makeBoolType(), LINK(child)));
  2934. buildExpr(ctx, null, tgt);
  2935. }
  2936. return;
  2937. case no_is_valid:
  2938. doBuildExprIsValid(ctx, expr, tgt);
  2939. return;
  2940. case no_fromunicode:
  2941. case no_tounicode:
  2942. doBuildExprToFromUnicode(ctx, expr, tgt);
  2943. return;
  2944. case no_keyunicode:
  2945. doBuildExprKeyUnicode(ctx, expr, tgt);
  2946. return;
  2947. case no_xmldecode:
  2948. case no_xmlencode:
  2949. buildTempExpr(ctx, expr, tgt);
  2950. return;
  2951. case no_and:
  2952. case no_or:
  2953. if (requiresTempAfterFirst(ctx, expr))
  2954. buildTempExpr(ctx, expr, tgt);
  2955. else
  2956. doBuildPureSubExpr(ctx, expr, tgt);
  2957. return;
  2958. case no_assertkeyed:
  2959. case no_assertwild:
  2960. {
  2961. StringBuffer s;
  2962. throwError1(HQLERR_KeyedWildNoIndex, getExprECL(expr, s).str());
  2963. }
  2964. case no_assertstepped:
  2965. {
  2966. StringBuffer s;
  2967. throwError1(HQLERR_SteppedNoJoin, getExprECL(expr, s).str());
  2968. }
  2969. case no_id2blob:
  2970. doBuildExprIdToBlob(ctx, expr, tgt);
  2971. return;
  2972. case no_blob2id:
  2973. doBuildExprBlobToId(ctx, expr, tgt);
  2974. return;
  2975. case no_embedbody:
  2976. doBuildExprEmbedBody(ctx, expr, &tgt);
  2977. return;
  2978. case no_null:
  2979. tgt.length.setown(getSizetConstant(0));
  2980. tgt.expr.setown(createValue(no_nullptr, makeReferenceModifier(expr->getType())));
  2981. return;
  2982. case no_clustersize:
  2983. doBuildExprSysFunc(ctx, expr, tgt, getClusterSizeId);
  2984. return;
  2985. case no_deref:
  2986. //Untested
  2987. buildExpr(ctx, expr->queryChild(0), tgt);
  2988. if (tgt.expr->getOperator() == no_address)
  2989. tgt.expr.setown(createValue(no_typetransfer, expr->getType(), LINK(tgt.expr->queryChild(0))));
  2990. else
  2991. tgt.expr.setown(createValue(no_deref, expr->getType(), LINK(tgt.expr)));
  2992. return;
  2993. case no_funcdef:
  2994. tgt.expr.setown(doBuildInternalFunction(expr));
  2995. useFunction(tgt.expr);
  2996. return;
  2997. case no_purevirtual:
  2998. case no_internalselect:
  2999. {
  3000. //This shouldn't happen we should have an no_checkconcrete wrapper inserted into the tree like checkconstant,
  3001. //but it currently can in obscure library contexts (e.g., library3ie2.xhql)
  3002. IAtom * name = expr->queryName();
  3003. throwError1(HQLERR_ConcreteMemberRequired, name ? name->str() : "");
  3004. }
  3005. case NO_AGGREGATEGROUP:
  3006. throwError1(HQLERR_OutsideGroupAggregate, getOpString(op));
  3007. default:
  3008. break;
  3009. }
  3010. EclIR::dbglogIR(expr);
  3011. StringBuffer msg;
  3012. msg.append("Unexpected operator '").append(getOpString(op)).append("' in: HqlCppTranslator::buildExpr(");
  3013. toECL(expr, msg, true);
  3014. // expr->toString(msg);
  3015. msg.append(")");
  3016. throw MakeStringException(HQLERR_UnexpectedOperator, "%s", msg.str());
  3017. doBuildPureSubExpr(ctx, expr, tgt);
  3018. }
  3019. void HqlCppTranslator::buildExprOrAssign(BuildCtx & ctx, const CHqlBoundTarget * target, IHqlExpression * expr, CHqlBoundExpr * tgt)
  3020. {
  3021. if (target)
  3022. buildExprAssign(ctx, *target, expr);
  3023. else if (tgt)
  3024. buildExpr(ctx, expr, *tgt);
  3025. else
  3026. buildStmt(ctx, expr);
  3027. }
  3028. bool HqlCppTranslator::specialCaseBoolReturn(BuildCtx & ctx, IHqlExpression * expr)
  3029. {
  3030. if (!options.optimizeBoolReturn)
  3031. return false;
  3032. if ((expr->getOperator() == no_and) && (unwoundCount(expr, no_and) <= MAX_NESTED_CASES))
  3033. return true;
  3034. if (expr->getOperator() == no_not)
  3035. expr = expr->queryChild(0);
  3036. if (!requiresTemp(ctx, expr, true))
  3037. return false;
  3038. if (expr->getOperator() == no_alias_scope)
  3039. expr = expr->queryChild(0);
  3040. if (expr->getOperator() == no_compound)
  3041. expr = expr->queryChild(1);
  3042. if ((expr->getOperator() == no_and) || (expr->getOperator() == no_or))
  3043. return true;
  3044. return false;
  3045. }
  3046. void HqlCppTranslator::buildReturn(BuildCtx & ctx, IHqlExpression * expr, ITypeInfo * retType)
  3047. {
  3048. ITypeInfo * exprType = expr->queryType();
  3049. if (!retType) retType = exprType;
  3050. expr = queryExpandAliasScope(ctx, expr);
  3051. node_operator op = expr->getOperator();
  3052. if ((retType->getSize() == UNKNOWN_LENGTH) && (retType->getTypeCode() == type_varstring))
  3053. {
  3054. if (hasConstModifier(retType) && (hasConstModifier(exprType) || expr->queryValue()))
  3055. {
  3056. OwnedHqlExpr cast = ensureExprType(expr, retType);
  3057. CHqlBoundExpr ret;
  3058. buildCachedExpr(ctx, cast, ret);
  3059. ctx.setNextDestructor();
  3060. ctx.addReturn(ret.expr);
  3061. }
  3062. else
  3063. {
  3064. if (hasConstModifier(retType))
  3065. {
  3066. IIdAtom * funcAtom;
  3067. if (expr->queryType()->getTypeCode()==type_varstring)
  3068. funcAtom = cloneVStringId;
  3069. else
  3070. funcAtom = cloneVStringXId;
  3071. HqlExprArray args;
  3072. args.append(*LINK(expr));
  3073. OwnedHqlExpr call = bindFunctionCall(funcAtom, args);
  3074. CHqlBoundExpr ret;
  3075. buildExpr(ctx, call, ret);
  3076. ctx.addReturn(ret.expr);
  3077. return;
  3078. }
  3079. CHqlBoundTarget retVar;
  3080. retVar.expr.setown(createWrapperTemp(ctx, retType, typemod_none));
  3081. buildExprAssign(ctx, retVar, expr);
  3082. ctx.setNextDestructor();
  3083. StringBuffer s;
  3084. retVar.expr->toString(s);
  3085. switch (retType->getTypeCode())
  3086. {
  3087. case type_varstring:
  3088. s.append(".detachstr()");
  3089. break;
  3090. case type_varunicode:
  3091. s.append(".detachustr()");
  3092. break;
  3093. default:
  3094. UNIMPLEMENTED;
  3095. }
  3096. OwnedHqlExpr temp = createQuoted(s.str(), LINK(exprType));
  3097. ctx.addReturn(temp);
  3098. }
  3099. }
  3100. else if ((retType->getTypeCode() == type_boolean) && specialCaseBoolReturn(ctx, expr))
  3101. {
  3102. bool successValue = true;
  3103. if (op == no_not)
  3104. {
  3105. //!(a and b) is converted into !a || !b. Otherwise just invert the test condition.
  3106. IHqlExpression * child = expr->queryChild(0);
  3107. if (child->getOperator() == no_alias_scope)
  3108. child = child->queryChild(0);
  3109. if (child->getOperator() != no_and)
  3110. {
  3111. successValue = false;
  3112. expr = expr->queryChild(0);
  3113. }
  3114. }
  3115. BuildCtx condctx(ctx);
  3116. buildFilteredReturn(condctx, expr, queryBoolExpr(successValue));
  3117. buildReturn(ctx, queryBoolExpr(!successValue));
  3118. }
  3119. else if (op == no_if)
  3120. {
  3121. OwnedHqlExpr castTrue = ensureExprType(expr->queryChild(1), retType);
  3122. OwnedHqlExpr castFalse = ensureExprType(expr->queryChild(2), retType);
  3123. BuildCtx condctx(ctx);
  3124. buildFilter(condctx, expr->queryChild(0));
  3125. buildReturn(condctx, castTrue);
  3126. buildReturn(ctx, castFalse);
  3127. }
  3128. else if (op == no_map || op == no_case)
  3129. {
  3130. HqlCppCaseInfo info(*this);
  3131. doBuildCaseInfo(expr, info);
  3132. info.buildReturn(ctx);
  3133. }
  3134. else
  3135. {
  3136. CHqlBoundExpr ret;
  3137. OwnedHqlExpr castExpr = ensureExprType(expr, retType);
  3138. buildExpr(ctx, castExpr, ret);
  3139. ctx.addReturn(ret.expr);
  3140. }
  3141. }
  3142. //Assumes that the value being returned is simple.
  3143. //for (a || b || c) gen if (a) return x; if (b) return x; if (c) return x;
  3144. //and !(a && b && c) -> !a || !b || !c
  3145. void HqlCppTranslator::buildFilteredReturn(BuildCtx & ctx, IHqlExpression * filter, IHqlExpression * value)
  3146. {
  3147. filter = queryExpandAliasScope(ctx, filter);
  3148. HqlExprArray conds;
  3149. node_operator op = filter->getOperator();
  3150. if (op == no_or)
  3151. {
  3152. buildFilteredReturn(ctx, filter->queryChild(0), value);
  3153. buildFilteredReturn(ctx, filter->queryChild(1), value);
  3154. return;
  3155. }
  3156. if (op == no_not)
  3157. {
  3158. IHqlExpression * child = filter->queryChild(0);
  3159. node_operator childOp = child->getOperator();
  3160. if (childOp == no_and)
  3161. {
  3162. child->unwindList(conds, no_and);
  3163. ForEachItemIn(i, conds)
  3164. {
  3165. IHqlExpression & cur = conds.item(i);
  3166. OwnedHqlExpr inverse = getInverse(&cur);
  3167. buildFilteredReturn(ctx, inverse, value);
  3168. }
  3169. return;
  3170. }
  3171. if (childOp == no_alias_scope)
  3172. {
  3173. expandAliasScope(ctx, child);
  3174. OwnedHqlExpr inverse = getInverse(child->queryChild(0));
  3175. buildFilteredReturn(ctx, inverse, value);
  3176. return;
  3177. }
  3178. }
  3179. BuildCtx condctx(ctx);
  3180. buildFilter(condctx, filter);
  3181. if (value)
  3182. buildReturn(condctx, value);
  3183. else
  3184. condctx.addReturn(NULL);
  3185. }
  3186. void HqlCppTranslator::buildStmt(BuildCtx & _ctx, IHqlExpression * expr)
  3187. {
  3188. BuildCtx ctx(_ctx);
  3189. node_operator op = expr->getOperator();
  3190. switch (op)
  3191. {
  3192. case no_assign:
  3193. doBuildStmtAssign(ctx, expr->queryChild(0), expr->queryChild(1));
  3194. return;
  3195. case no_assign_addfiles:
  3196. doBuildStmtAssignModify(ctx, expr->queryChild(0), expr->queryChild(1), op);
  3197. return;
  3198. case no_alias:
  3199. doBuildExprAlias(ctx, expr, NULL);
  3200. return;
  3201. case no_alias_scope:
  3202. {
  3203. expandAliasScope(ctx, expr);
  3204. buildStmt(ctx, expr->queryChild(0));
  3205. return;
  3206. }
  3207. case no_assignall:
  3208. {
  3209. unsigned idx;
  3210. unsigned kids = expr->numChildren();
  3211. for (idx = 0; idx < kids; idx++)
  3212. buildStmt(ctx, expr->queryChild(idx));
  3213. return;
  3214. }
  3215. case no_comma:
  3216. case no_compound:
  3217. buildStmt(ctx, expr->queryChild(0));
  3218. buildStmt(ctx, expr->queryChild(1));
  3219. return;
  3220. case no_if:
  3221. doBuildStmtIf(ctx, expr);
  3222. return;
  3223. case no_call:
  3224. case no_externalcall:
  3225. doBuildStmtCall(ctx, expr);
  3226. return;
  3227. case no_nofold:
  3228. case no_nohoist:
  3229. case no_nothor:
  3230. case no_section:
  3231. case no_sectioninput:
  3232. buildStmt(ctx, expr->queryChild(0));
  3233. return;
  3234. case no_null:
  3235. return;
  3236. case no_fail:
  3237. doBuildStmtFail(ctx, expr);
  3238. return;
  3239. case no_setmeta:
  3240. return;
  3241. case no_update:
  3242. doBuildStmtUpdate(ctx, expr);
  3243. return;
  3244. case no_output:
  3245. if (queryRealChild(expr, 1))
  3246. throwError1(HQLERR_NotSupportedInsideNoThor, "OUTPUT to file");
  3247. doBuildStmtOutput(ctx, expr);
  3248. return;
  3249. case no_subgraph:
  3250. doBuildThorChildSubGraph(ctx, expr, SubGraphRoot);
  3251. return;
  3252. case no_thor:
  3253. doBuildThorGraph(ctx, expr);
  3254. return;
  3255. case no_workflow_action:
  3256. return;
  3257. case no_ensureresult:
  3258. doBuildStmtEnsureResult(ctx, expr);
  3259. return;
  3260. case no_extractresult:
  3261. case no_setresult:
  3262. doBuildStmtSetResult(ctx, expr);
  3263. return;
  3264. case no_parallel:
  3265. case no_sequential:
  3266. case no_actionlist:
  3267. case no_orderedactionlist:
  3268. {
  3269. ForEachChild(idx, expr)
  3270. {
  3271. BuildCtx subctx(ctx);
  3272. //Add a group for each branch of a sequential to ensure all branches are independent
  3273. if (op == no_sequential)
  3274. subctx.addGroup();
  3275. buildStmt(subctx, expr->queryChild(idx));
  3276. }
  3277. return;
  3278. }
  3279. case no_wait:
  3280. doBuildStmtWait(ctx, expr);
  3281. return;
  3282. case no_notify:
  3283. doBuildStmtNotify(ctx, expr);
  3284. return;
  3285. case no_skip:
  3286. doBuildStmtSkip(ctx, expr, NULL);
  3287. return;
  3288. case no_assert:
  3289. doBuildStmtAssert(ctx, expr);
  3290. return;
  3291. case no_embedbody:
  3292. doBuildExprEmbedBody(ctx, expr, NULL);
  3293. return;
  3294. case no_setworkflow_cond:
  3295. {
  3296. HqlExprArray args;
  3297. args.append(*LINK(expr->queryChild(0)));
  3298. buildFunctionCall(ctx, setWorkflowConditionId, args);
  3299. return;
  3300. }
  3301. case no_apply:
  3302. doBuildStmtApply(ctx, expr);
  3303. return;
  3304. case no_cluster:
  3305. doBuildStmtCluster(ctx, expr);
  3306. return;
  3307. case no_choose:
  3308. doBuildChoose(ctx, NULL, expr);
  3309. return;
  3310. case no_persist_check:
  3311. buildWorkflowPersistCheck(ctx, expr);
  3312. return;
  3313. case no_childquery:
  3314. buildChildGraph(ctx, expr);
  3315. return;
  3316. case no_evaluate_stmt:
  3317. expr = expr->queryChild(0);
  3318. if (expr->queryValue())
  3319. return;
  3320. break; // evaluate default behaviour.
  3321. }
  3322. CHqlBoundExpr tgt;
  3323. buildAnyExpr(ctx, expr, tgt);
  3324. ctx.addExpr(tgt.expr);
  3325. tidyupExpr(ctx, tgt);
  3326. }
  3327. class AliasExpansionInfo
  3328. {
  3329. public:
  3330. void pushCondition(IHqlExpression * expr, unsigned branch) { conditions.append(*createAttribute(branchAtom, LINK(expr), getSizetConstant(branch))); }
  3331. void popCondition() { conditions.pop(); }
  3332. void popConditions(unsigned num) { conditions.popn(num); }
  3333. bool isConditional() { return conditions.ordinality() != 0; }
  3334. IHqlExpression * createConditionIntersection(IHqlExpression * prev)
  3335. {
  3336. if (conditions.ordinality() == 0)
  3337. return NULL;
  3338. if (!prev)
  3339. return createValueSafe(no_sortlist, makeSortListType(NULL), conditions);
  3340. unsigned maxPrev = prev->numChildren();
  3341. unsigned max = maxPrev;
  3342. if (max > conditions.ordinality())
  3343. max = conditions.ordinality();
  3344. for (unsigned i=0; i < max; i++)
  3345. {
  3346. if (&conditions.item(i) != prev->queryChild(i))
  3347. {
  3348. if (i == 0)
  3349. return NULL;
  3350. return createValueSafe(no_sortlist, makeSortListType(NULL), conditions, 0, i);
  3351. }
  3352. }
  3353. if (max == maxPrev)
  3354. return LINK(prev);
  3355. return createValueSafe(no_sortlist, makeSortListType(NULL), conditions);
  3356. }
  3357. HqlExprArray conditions;
  3358. };
  3359. void HqlCppTranslator::doExpandAliases(BuildCtx & ctx, IHqlExpression * expr, AliasExpansionInfo & info)
  3360. {
  3361. IHqlExpression * prev = static_cast<IHqlExpression *>(expr->queryTransformExtra());
  3362. if (prev == expr)
  3363. return;
  3364. #ifdef USE_NEW_ALIAS_CODE
  3365. OwnedHqlExpr commonPath = info.createConditionIntersection(prev);
  3366. if (prev == commonPath)
  3367. return;
  3368. if (commonPath)
  3369. expr->setTransformExtra(commonPath);
  3370. else
  3371. expr->setTransformExtraUnlinked(expr);
  3372. node_operator op = expr->getOperator();
  3373. switch (op)
  3374. {
  3375. //MORE: Anything that creates a child query shouldn't be included here...
  3376. case no_select:
  3377. case NO_AGGREGATE:
  3378. case no_alias_scope:
  3379. break;
  3380. case no_alias:
  3381. {
  3382. IHqlExpression * value = expr->queryChild(0);
  3383. if ((commonPath == NULL) && !ctx.queryMatchExpr(value))
  3384. {
  3385. if (containsAliasLocally(value) && !expr->hasAttribute(globalAtom))
  3386. doExpandAliases(ctx, value, info);
  3387. doBuildExprAlias(ctx, expr, NULL);
  3388. }
  3389. break;
  3390. }
  3391. case no_and:
  3392. case no_or:
  3393. {
  3394. HqlExprArray args;
  3395. expr->unwindList(args, op);
  3396. doExpandAliases(ctx, &args.item(0), info);
  3397. unsigned max = args.ordinality();
  3398. for (unsigned i=1; i < max; i++)
  3399. {
  3400. info.pushCondition(expr, i);
  3401. doExpandAliases(ctx, &args.item(i), info);
  3402. }
  3403. info.popConditions(max-1);
  3404. break;
  3405. }
  3406. case no_if:
  3407. {
  3408. doExpandAliases(ctx, expr->queryChild(0), info);
  3409. info.pushCondition(expr, 1);
  3410. doExpandAliases(ctx, expr->queryChild(1), info);
  3411. info.popCondition();
  3412. info.pushCondition(expr, 2);
  3413. doExpandAliases(ctx, expr->queryChild(2), info);
  3414. info.popCondition();
  3415. break;
  3416. }
  3417. case no_case:
  3418. {
  3419. doExpandAliases(ctx, expr->queryChild(0), info);
  3420. unsigned max = expr->numChildren();
  3421. for (unsigned i=1; i < max-1; i++)
  3422. {
  3423. info.pushCondition(expr, i*2);
  3424. doExpandAliases(ctx, expr->queryChild(i)->queryChild(0), info);
  3425. info.popCondition();
  3426. info.pushCondition(expr, i*2+1);
  3427. doExpandAliases(ctx, expr->queryChild(i)->queryChild(1), info);
  3428. info.popCondition();
  3429. }
  3430. info.pushCondition(expr, (max-1)*2);
  3431. doExpandAliases(ctx, expr->queryChild(max-1), info);
  3432. info.popCondition();
  3433. break;
  3434. }
  3435. case no_map:
  3436. {
  3437. //The following is equivalent to old, code; I'm not sure it is the best implementation
  3438. unsigned max = expr->numChildren();
  3439. for (unsigned i=0; i < max-1; i++)
  3440. {
  3441. info.pushCondition(expr, i*2);
  3442. doExpandAliases(ctx, expr->queryChild(i)->queryChild(0), info);
  3443. info.popCondition();
  3444. info.pushCondition(expr, i*2+1);
  3445. doExpandAliases(ctx, expr->queryChild(i)->queryChild(1), info);
  3446. info.popCondition();
  3447. }
  3448. info.pushCondition(expr, (max-1)*2);
  3449. doExpandAliases(ctx, expr->queryChild(max-1), info);
  3450. info.popCondition();
  3451. break;
  3452. }
  3453. default:
  3454. if (containsAliasLocally(expr))
  3455. {
  3456. ForEachChild(i, expr)
  3457. doExpandAliases(ctx, expr->queryChild(i), info);
  3458. }
  3459. break;
  3460. }
  3461. #else
  3462. expr->setTransformExtraUnlinked(expr);
  3463. node_operator op = expr->getOperator();
  3464. switch (op)
  3465. {
  3466. //MORE: Anything that creates a child query shouldn't be included here...
  3467. case no_select:
  3468. case NO_AGGREGATE:
  3469. case no_alias_scope:
  3470. break;
  3471. case no_alias:
  3472. {
  3473. doBuildExprAlias(ctx, expr, NULL);
  3474. break;
  3475. }
  3476. default:
  3477. if (containsAliasLocally(expr))
  3478. {
  3479. ForEachChild(i, expr)
  3480. doExpandAliases(ctx, expr->queryChild(i), info);
  3481. }
  3482. break;
  3483. }
  3484. #endif
  3485. }
  3486. void HqlCppTranslator::expandAliases(BuildCtx & ctx, IHqlExpression * expr)
  3487. {
  3488. if (containsAliasLocally(expr))
  3489. {
  3490. TransformMutexBlock block;
  3491. AliasExpansionInfo info;
  3492. doExpandAliases(ctx, expr, info);
  3493. }
  3494. }
  3495. void HqlCppTranslator::expandAliasScope(BuildCtx & ctx, IHqlExpression * expr)
  3496. {
  3497. TransformMutexBlock block;
  3498. AliasExpansionInfo info;
  3499. unsigned max = expr->numChildren();
  3500. for (unsigned idx = 1; idx < max; idx++)
  3501. {
  3502. IHqlExpression * child = expr->queryChild(idx);
  3503. if (containsAliasLocally(child))
  3504. doExpandAliases(ctx, child, info);
  3505. }
  3506. }
  3507. //------------------------------------------------------------------------------
  3508. void HqlCppTranslator::gatherActiveCursors(BuildCtx & ctx, HqlExprCopyArray & activeRows)
  3509. {
  3510. AssociationIterator iter(ctx);
  3511. ForEach(iter)
  3512. {
  3513. HqlExprAssociation & cur = iter.get();
  3514. if (cur.isRowAssociation())
  3515. {
  3516. BoundRow & curRow = static_cast<BoundRow &>(cur);
  3517. if ((curRow.querySide() != no_self) && !curRow.isBuilder())
  3518. activeRows.append(*curRow.querySelector());
  3519. }
  3520. else if (cur.represents->getOperator() == no_counter)
  3521. activeRows.append(*cur.represents);
  3522. }
  3523. }
  3524. bool HqlCppTranslator::canEvaluateInContext(BuildCtx & ctx, IHqlExpression * expr)
  3525. {
  3526. HqlExprCopyArray cursors;
  3527. gatherActiveCursors(ctx, cursors);
  3528. return ::canEvaluateInScope(cursors, expr);
  3529. }
  3530. bool mustEvaluateInContext(BuildCtx & ctx, IHqlExpression * expr)
  3531. {
  3532. HqlExprCopyArray required;
  3533. expr->gatherTablesUsed(NULL, &required);
  3534. if (required.ordinality() == 0)
  3535. return false;
  3536. HqlExprCopyArray activeRows;
  3537. HqlExprCopyArray inheritedRows;
  3538. RowAssociationIterator iter(ctx);
  3539. ForEach(iter)
  3540. {
  3541. BoundRow & cur = iter.get();
  3542. if ((cur.querySide() != no_self) && !cur.isBuilder())
  3543. {
  3544. IHqlExpression * selector = cur.querySelector();
  3545. if (cur.isInherited())
  3546. inheritedRows.append(*selector);
  3547. else
  3548. activeRows.append(*selector);
  3549. }
  3550. }
  3551. //Ensure all instances of activeRows which match the inherited rows are removed
  3552. ForEachItemInRev(i, activeRows)
  3553. {
  3554. if (inheritedRows.find(activeRows.item(i)))
  3555. activeRows.remove(i);
  3556. }
  3557. return canEvaluateInScope(activeRows, required);
  3558. }
  3559. bool filterIsTableInvariant(IHqlExpression * expr)
  3560. {
  3561. IHqlExpression * dsSelector = expr->queryChild(0)->queryNormalizedSelector();
  3562. ForEachChildFrom(i, expr, 1)
  3563. {
  3564. IHqlExpression * cur = expr->queryChild(i);
  3565. if (containsSelector(cur, dsSelector))
  3566. return false;
  3567. }
  3568. return true;
  3569. }
  3570. //-----------------------------------------------------------------------------
  3571. bool LoopInvariantHelper::getBestContext(BuildCtx & ctx, IHqlExpression * expr)
  3572. {
  3573. finished();
  3574. active = ctx.selectBestContext(expr);
  3575. return (active != NULL);
  3576. }
  3577. void LoopInvariantHelper::finished()
  3578. {
  3579. if (active)
  3580. {
  3581. active->mergeScopeWithContainer();
  3582. active = NULL;
  3583. }
  3584. }
  3585. //---------------------------------------------------------------------------
  3586. void HqlCppTranslator::buildBlockCopy(BuildCtx & ctx, IHqlExpression * tgt, CHqlBoundExpr & src)
  3587. {
  3588. OwnedHqlExpr size = getBoundSize(src);
  3589. if (!size->queryValue() || size->queryValue()->getIntValue() != 0)
  3590. {
  3591. HqlExprArray args;
  3592. args.append(*getPointer(tgt));
  3593. args.append(*getPointer(src.expr));
  3594. args.append(*size.getClear());
  3595. callProcedure(ctx, memcpyId, args);
  3596. }
  3597. }
  3598. void HqlCppTranslator::buildSimpleExpr(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  3599. {
  3600. node_operator op = expr->getOperator();
  3601. bool simple = false;
  3602. switch (op)
  3603. {
  3604. case no_alias_scope:
  3605. {
  3606. expandAliasScope(ctx, expr);
  3607. buildSimpleExpr(ctx, expr->queryChild(0), tgt);
  3608. return;
  3609. }
  3610. case no_preservemeta:
  3611. buildSimpleExpr(ctx, expr->queryChild(0), tgt);
  3612. return;
  3613. case no_constant:
  3614. case no_variable:
  3615. case no_getresult: // gets forced into a variable.
  3616. case no_workunit_dataset: // gets forced into a variable.
  3617. case no_getgraphresult: // gets forced into a variable.
  3618. case no_alias:
  3619. case no_list:
  3620. case no_all:
  3621. case no_null:
  3622. case no_id2blob:
  3623. case no_rows:
  3624. case no_libraryinput:
  3625. simple = true;
  3626. break;
  3627. case no_compound:
  3628. buildStmt(ctx, expr->queryChild(0));
  3629. buildSimpleExpr(ctx, expr->queryChild(1), tgt);
  3630. return;
  3631. case no_field:
  3632. throwUnexpected();
  3633. case no_select:
  3634. {
  3635. CHqlBoundExpr bound;
  3636. buildCachedExpr(ctx, expr, bound);
  3637. if (isSimpleTranslatedExpr(bound.expr))
  3638. tgt.set(bound);
  3639. else
  3640. {
  3641. OwnedHqlExpr trans = bound.getTranslatedExpr();
  3642. buildTempExpr(ctx, trans, tgt);
  3643. }
  3644. return;
  3645. }
  3646. break; // should depend on whether conditional etc....
  3647. case no_translated:
  3648. simple = isSimpleTranslatedExpr(expr->queryChild(0));
  3649. break;
  3650. case no_substring:
  3651. {
  3652. SubStringInfo info(expr);
  3653. if (info.canGenerateInline() || expr->hasAttribute(quickAtom))
  3654. simple = true;
  3655. break;
  3656. }
  3657. case no_cast:
  3658. case no_implicitcast:
  3659. {
  3660. //special case casting a string to (string) - saves lots of temporaries.
  3661. ITypeInfo * exprType = expr->queryType();
  3662. IHqlExpression * child = expr->queryChild(0);
  3663. ITypeInfo * childType = child->queryType();
  3664. if ((exprType->getTypeCode() == type_string) && (exprType->getSize() == UNKNOWN_LENGTH))
  3665. {
  3666. if ((childType->getTypeCode() == type_string) && (exprType->queryCharset() == childType->queryCharset()))
  3667. {
  3668. buildSimpleExpr(ctx, child, tgt);
  3669. return;
  3670. }
  3671. }
  3672. if (options.foldConstantCast && (child->getOperator() == no_constant))
  3673. simple = true;
  3674. break;
  3675. }
  3676. case no_sizeof:
  3677. case no_offsetof:
  3678. simple = true;
  3679. break;
  3680. case no_regex_find:
  3681. simple = expr->isBoolean();
  3682. break;
  3683. case no_call:
  3684. case no_externalcall:
  3685. {
  3686. ITypeInfo * type = expr->queryType();
  3687. switch (type->getTypeCode())
  3688. {
  3689. case type_set:
  3690. simple = true;
  3691. break;
  3692. case type_string:
  3693. case type_data:
  3694. case type_qstring:
  3695. if (type->getSize() == UNKNOWN_LENGTH)
  3696. simple = true;
  3697. break;
  3698. }
  3699. }
  3700. }
  3701. if (simple)
  3702. buildCachedExpr(ctx, expr, tgt);
  3703. else
  3704. buildTempExpr(ctx, expr, tgt);
  3705. }
  3706. IHqlExpression * HqlCppTranslator::buildSimplifyExpr(BuildCtx & ctx, IHqlExpression * expr)
  3707. {
  3708. node_operator op = expr->getOperator();
  3709. switch (op)
  3710. {
  3711. case no_constant:
  3712. case no_all:
  3713. case no_null:
  3714. return LINK(expr);
  3715. case no_list:
  3716. if (expr->isConstant())
  3717. return LINK(expr);
  3718. break;
  3719. }
  3720. CHqlBoundExpr bound;
  3721. buildSimpleExpr(ctx, expr, bound);
  3722. return bound.getTranslatedExpr();
  3723. }
  3724. /* In type: not linked. Return: linked */
  3725. IHqlExpression * HqlCppTranslator::createWrapperTemp(BuildCtx & ctx, ITypeInfo * type, typemod_t modifier)
  3726. {
  3727. Linked<ITypeInfo> rawType = queryUnqualifiedType(type);
  3728. if (hasLinkCountedModifier(type))
  3729. rawType.setown(makeAttributeModifier(rawType.getClear(), getLinkCountedAttr()));
  3730. Owned<ITypeInfo> declType = makeWrapperModifier(rawType.getClear());
  3731. declType.setown(makeModifier(declType.getClear(), modifier));
  3732. switch (declType->getTypeCode())
  3733. {
  3734. case type_set: //needed if we have sets with link counted elements
  3735. case type_row:
  3736. case type_array:
  3737. case type_dictionary:
  3738. case type_table:
  3739. case type_groupedtable:
  3740. //Ensure row and dataset temporaries are active throughout a function, so pointers to the row
  3741. //or rows within a dataset remain valid (e.g., outside conditions).
  3742. if ((modifier != typemod_member) && ctx.queryMatchExpr(queryConditionalRowMarker()))
  3743. ctx.setNextPriority(BuildCtx::OutermostScopePrio);
  3744. break;
  3745. }
  3746. return ctx.getTempDeclare(declType, NULL);
  3747. }
  3748. void HqlCppTranslator::createTempFor(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundTarget & target)
  3749. {
  3750. createTempFor(ctx, expr->queryType(), target, typemod_none, FormatNatural);
  3751. }
  3752. void HqlCppTranslator::createTempFor(BuildCtx & ctx, ITypeInfo * _exprType, CHqlBoundTarget & target, typemod_t modifier, ExpressionFormat format)
  3753. {
  3754. Owned<ITypeInfo> exprType = makeModifier(LINK(_exprType->queryPromotedType()), modifier);
  3755. type_t tc = exprType->getTypeCode();
  3756. switch (tc)
  3757. {
  3758. case type_array:
  3759. case type_dictionary:
  3760. case type_table:
  3761. case type_groupedtable:
  3762. {
  3763. if (recordRequiresLinkCount(::queryRecord(exprType)) || hasLinkCountedModifier(_exprType))
  3764. {
  3765. assertex(format != FormatBlockedDataset);
  3766. format = FormatLinkedDataset;
  3767. }
  3768. else if (format == FormatNatural)
  3769. format = FormatLinkedDataset;
  3770. break;
  3771. }
  3772. }
  3773. if (hasLinkCountedModifier(exprType))
  3774. {
  3775. if (format == FormatNatural)
  3776. format = FormatLinkedDataset;
  3777. else if (format == FormatBlockedDataset)
  3778. exprType.setown(setLinkCountedAttr(exprType, false));
  3779. }
  3780. else
  3781. {
  3782. if (format == FormatNatural)
  3783. format = FormatBlockedDataset;
  3784. else if ((format == FormatLinkedDataset) || (format == FormatArrayDataset))
  3785. exprType.setown(setLinkCountedAttr(exprType, true));
  3786. }
  3787. size32_t size = exprType->getSize();
  3788. if (size == UNKNOWN_LENGTH)
  3789. {
  3790. switch (tc)
  3791. {
  3792. case type_string:
  3793. case type_data:
  3794. case type_qstring:
  3795. case type_unicode:
  3796. case type_utf8:
  3797. {
  3798. OwnedITypeInfo lenType = makeModifier(LINK(sizetType), modifier);
  3799. target.expr.setown(createWrapperTemp(ctx, exprType, modifier));
  3800. target.length.setown(ctx.getTempDeclare(lenType, NULL));
  3801. break;
  3802. }
  3803. case type_varstring:
  3804. case type_varunicode:
  3805. {
  3806. target.expr.setown(createWrapperTemp(ctx, exprType, modifier));
  3807. break;
  3808. }
  3809. case type_set:
  3810. case type_array:
  3811. case type_table:
  3812. case type_groupedtable:
  3813. case type_dictionary:
  3814. break;
  3815. default:
  3816. {
  3817. UNIMPLEMENTED;
  3818. break;
  3819. }
  3820. }
  3821. }
  3822. else if (size > MAX_SIMPLE_VAR_SIZE)
  3823. {
  3824. switch (tc)
  3825. {
  3826. case type_string:
  3827. case type_data:
  3828. case type_qstring:
  3829. case type_unicode:
  3830. case type_varstring:
  3831. case type_varunicode:
  3832. case type_utf8:
  3833. {
  3834. target.expr.setown(createWrapperTemp(ctx, exprType, modifier));
  3835. break;
  3836. }
  3837. }
  3838. }
  3839. switch (tc)
  3840. {
  3841. case type_set:
  3842. {
  3843. OwnedITypeInfo isAllType = makeModifier(LINK(boolType), modifier);
  3844. target.isAll.setown(ctx.getTempDeclare(isAllType, NULL));
  3845. }
  3846. //fall through
  3847. case type_array:
  3848. case type_table:
  3849. case type_groupedtable:
  3850. case type_dictionary:
  3851. {
  3852. OwnedITypeInfo lenType = makeModifier(LINK(sizetType), modifier);
  3853. target.expr.setown(createWrapperTemp(ctx, exprType, modifier));
  3854. if (isArrayRowset(exprType))
  3855. {
  3856. //A bit of a hack, but the cleanest I could come up with... really access to the count member should be wrapped in
  3857. //member functions, but getting them created needs a whole new level of complication (probably moving out out of hqlwcpp)
  3858. StringBuffer name;
  3859. target.expr->toString(name).append(".count");
  3860. target.count.setown(createVariable(name, LINK(lenType)));
  3861. }
  3862. else
  3863. target.length.setown(ctx.getTempDeclare(lenType, NULL));
  3864. break;
  3865. }
  3866. }
  3867. if (!target.expr)
  3868. {
  3869. target.expr.setown(ctx.getTempDeclare(exprType, NULL));
  3870. }
  3871. }
  3872. void HqlCppTranslator::buildTempExpr(BuildCtx & ctx, BuildCtx & declareCtx, CHqlBoundTarget & tempTarget, IHqlExpression * expr, ExpressionFormat format, bool ignoreSetAll)
  3873. {
  3874. if (options.addLocationToCpp)
  3875. {
  3876. IHqlExpression * location = queryLocation(expr);
  3877. if (location)
  3878. {
  3879. StringBuffer s;
  3880. s.append("// ").append(location->querySourcePath()->str()).append("(").append(location->getStartLine()).append(",").append(location->getStartColumn()).append(") ").append(expr->queryName());
  3881. ctx.addQuoted(s);
  3882. }
  3883. else if (expr->queryName())
  3884. {
  3885. StringBuffer s;
  3886. s.append("// ").append(expr->queryName());
  3887. ctx.addQuoted(s);
  3888. }
  3889. }
  3890. typemod_t modifier = (&ctx != &declareCtx) ? typemod_member : typemod_none;
  3891. OwnedITypeInfo type = makeModifier(expr->getType(), modifier);
  3892. BuildCtx subctx(ctx);
  3893. switch (type->getTypeCode())
  3894. {
  3895. case type_row:
  3896. {
  3897. Owned<BoundRow> tempRow = declareTempRow(declareCtx, subctx, expr);
  3898. IHqlStmt * stmt = subctx.addGroup();
  3899. stmt->setIncomplete(true);
  3900. Owned<BoundRow> rowBuilder = createRowBuilder(subctx, tempRow);
  3901. Owned<IReferenceSelector> createdRef = createReferenceSelector(rowBuilder);
  3902. buildRowAssign(subctx, createdRef, expr);
  3903. finalizeTempRow(subctx, tempRow, rowBuilder);
  3904. stmt->setIncomplete(false);
  3905. stmt->mergeScopeWithContainer();
  3906. tempTarget.expr.set(tempRow->queryBound());
  3907. ctx.associate(*tempRow);
  3908. break;
  3909. }
  3910. break;
  3911. case type_table:
  3912. case type_groupedtable:
  3913. case type_dictionary:
  3914. {
  3915. createTempFor(declareCtx, type, tempTarget, modifier, format);
  3916. IHqlStmt * stmt = subctx.addGroup();
  3917. stmt->setIncomplete(true);
  3918. buildDatasetAssign(subctx, tempTarget, expr);
  3919. stmt->setIncomplete(false);
  3920. stmt->mergeScopeWithContainer();
  3921. break;
  3922. }
  3923. default:
  3924. {
  3925. createTempFor(declareCtx, type, tempTarget, modifier, format);
  3926. if (ignoreSetAll)
  3927. tempTarget.isAll.clear();
  3928. IHqlStmt * stmt = subctx.addGroup();
  3929. stmt->setIncomplete(true);
  3930. buildExprAssign(subctx, tempTarget, expr);
  3931. stmt->setIncomplete(false);
  3932. stmt->mergeScopeWithContainer();
  3933. break;
  3934. }
  3935. }
  3936. }
  3937. void HqlCppTranslator::buildTempExpr(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt, ExpressionFormat format)
  3938. {
  3939. node_operator op = expr->getOperator();
  3940. if (op == no_alias)
  3941. {
  3942. doBuildExprAlias(ctx, expr, &tgt);
  3943. return;
  3944. }
  3945. if (isCast(expr))
  3946. {
  3947. ITypeInfo * exprType = expr->queryType();
  3948. if (exprType->getStringLen() == UNKNOWN_LENGTH)
  3949. {
  3950. unsigned bestLen = getBestLengthEstimate(expr);
  3951. if (bestLen != UNKNOWN_LENGTH)
  3952. {
  3953. IHqlExpression * uncast = expr->queryChild(0);
  3954. Owned<ITypeInfo> stretchedType = getStretchedType(bestLen, exprType);
  3955. OwnedHqlExpr castExpr = ensureExprType(uncast, stretchedType);
  3956. buildTempExpr(ctx, castExpr, tgt, format);
  3957. ctx.associateExpr(expr, tgt);
  3958. return;
  3959. }
  3960. }
  3961. }
  3962. BuildCtx bestctx(ctx);
  3963. if (expr->isPure() && ctx.getMatchExpr(expr, tgt))
  3964. return;
  3965. switch (expr->getOperator())
  3966. {
  3967. case no_variable:
  3968. tgt.expr.set(expr);
  3969. return;
  3970. case no_translated:
  3971. {
  3972. if (!expr->queryChild(1))
  3973. {
  3974. IHqlExpression * value = expr->queryChild(0);
  3975. if (value->getOperator() == no_variable)
  3976. {
  3977. tgt.expr.set(value);
  3978. return;
  3979. }
  3980. }
  3981. break;
  3982. }
  3983. case no_id2blob:
  3984. buildExpr(ctx, expr, tgt);
  3985. return;
  3986. case no_call:
  3987. if (!isEmbedCall(expr))
  3988. break;
  3989. //fall through
  3990. case no_externalcall:
  3991. if (format == FormatNatural && expr->isDataset())
  3992. format = hasLinkCountedModifier(expr->queryType()) ? FormatLinkedDataset : FormatBlockedDataset;
  3993. break;
  3994. }
  3995. LoopInvariantHelper helper;
  3996. if (options.optimizeLoopInvariant)
  3997. helper.getBestContext(bestctx, expr);
  3998. bool canBeAll = canSetBeAll(expr);
  3999. CHqlBoundTarget tempTarget;
  4000. buildTempExpr(bestctx, bestctx, tempTarget, expr, format, !canBeAll);
  4001. tgt.setFromTarget(tempTarget);
  4002. bestctx.associateExpr(expr, tgt);
  4003. }
  4004. void HqlCppTranslator::buildExprViaTypedTemp(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt, ITypeInfo * type)
  4005. {
  4006. OwnedHqlExpr cast = createValue(no_implicitcast, LINK(type), LINK(expr));
  4007. if (cast->isPure() && ctx.getMatchExpr(cast, tgt))
  4008. return;
  4009. LoopInvariantHelper helper;
  4010. BuildCtx bestctx(ctx);
  4011. if (options.optimizeLoopInvariant)
  4012. helper.getBestContext(bestctx, expr);
  4013. CHqlBoundTarget tempTarget;
  4014. createTempFor(bestctx, type, tempTarget, typemod_none, FormatNatural);
  4015. buildExprAssign(bestctx, tempTarget, expr);
  4016. tgt.setFromTarget(tempTarget);
  4017. if (cast->isPure())
  4018. bestctx.associateExpr(cast, tgt);
  4019. }
  4020. void HqlCppTranslator::buildExprEnsureType(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt, ITypeInfo * type)
  4021. {
  4022. if (queryUnqualifiedType(expr->queryType()) != queryUnqualifiedType(type))
  4023. buildExprViaTypedTemp(ctx, expr, tgt, type);
  4024. else
  4025. buildExpr(ctx, expr, tgt);
  4026. }
  4027. AliasKind HqlCppTranslator::doBuildAliasValue(BuildCtx & ctx, IHqlExpression * value, CHqlBoundExpr & tgt)
  4028. {
  4029. //can happen when this is called for non no_alias arguments
  4030. if (value->getOperator() == no_alias)
  4031. value = value->queryChild(0);
  4032. EvalContext * instance = queryEvalContext(ctx);
  4033. if (instance)
  4034. return instance->evaluateExpression(ctx, value, tgt, true);
  4035. expandAliases(ctx, value);
  4036. buildTempExpr(ctx, value, tgt);
  4037. return RuntimeAlias;
  4038. }
  4039. void HqlCppTranslator::doBuildExprAlias(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr * tgt)
  4040. {
  4041. //MORE These will be declared in a different context later.
  4042. IHqlExpression * value = expr->queryChild(0);
  4043. while (value->getOperator() == no_alias)
  4044. value = value->queryChild(0);
  4045. CHqlBoundExpr bound;
  4046. if (!tgt)
  4047. tgt = &bound;
  4048. //The second half of this test could cause aliases to be duplicated, but has the significant effect of reducing the amount of data that is serialised.
  4049. //so far on my examples it does the latter, but doesn't seem to cause the former
  4050. if (expr->hasAttribute(localAtom) || (insideOnCreate(ctx) && !expr->hasAttribute(globalAtom)))
  4051. {
  4052. expandAliases(ctx, value);
  4053. switch (value->getOperator())
  4054. {
  4055. // these operations generate temporaries anyway, and the row versions are inefficient via a buildTempExpr
  4056. case no_getresult:
  4057. case no_getgraphresult:
  4058. case no_getgraphloopresult:
  4059. buildAnyExpr(ctx, value, *tgt);
  4060. break;
  4061. default:
  4062. buildTempExpr(ctx, value, *tgt);
  4063. break;
  4064. }
  4065. }
  4066. else
  4067. {
  4068. doBuildAliasValue(ctx, value, *tgt);
  4069. }
  4070. }
  4071. void HqlCppTranslator::doBuildBoolAssign(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  4072. {
  4073. if (requiresTemp(ctx, expr, true))
  4074. {
  4075. BuildCtx subctx(ctx);
  4076. assignBound(subctx, target, queryBoolExpr(false));
  4077. buildFilter(subctx, expr);
  4078. assignBound(subctx, target, queryBoolExpr(true));
  4079. }
  4080. else
  4081. {
  4082. CHqlBoundExpr temp;
  4083. buildCachedExpr(ctx, expr, temp);
  4084. assign(ctx, target, temp);
  4085. }
  4086. }
  4087. void HqlCppTranslator::doBuildExprAssign(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  4088. {
  4089. CHqlBoundExpr temp;
  4090. buildExpr(ctx, expr, temp);
  4091. assign(ctx, target, temp);
  4092. }
  4093. void HqlCppTranslator::ensureSimpleExpr(BuildCtx & ctx, CHqlBoundExpr & tgt)
  4094. {
  4095. if (!isSimpleTranslatedExpr(tgt.expr))
  4096. {
  4097. OwnedHqlExpr bound = tgt.getTranslatedExpr();
  4098. buildTempExpr(ctx, bound, tgt);
  4099. }
  4100. }
  4101. IHqlExpression * HqlCppTranslator::ensureSimpleTranslatedExpr(BuildCtx & ctx, IHqlExpression * expr)
  4102. {
  4103. if (isSimpleTranslatedExpr(expr))
  4104. return LINK(expr);
  4105. OwnedHqlExpr translated = createTranslated(expr);
  4106. CHqlBoundExpr bound;
  4107. buildTempExpr(ctx, translated, bound);
  4108. return LINK(bound.expr);
  4109. }
  4110. void HqlCppTranslator::ensureHasAddress(BuildCtx & ctx, CHqlBoundExpr & tgt)
  4111. {
  4112. IHqlExpression * expr = tgt.expr;
  4113. node_operator op = expr->getOperator();
  4114. switch (op)
  4115. {
  4116. case no_deref:
  4117. case no_variable:
  4118. break;
  4119. default:
  4120. if (!isTypePassedByAddress(expr->queryType()))
  4121. {
  4122. OwnedHqlExpr bound = tgt.getTranslatedExpr();
  4123. buildTempExpr(ctx, bound, tgt);
  4124. }
  4125. break;
  4126. }
  4127. }
  4128. //---------------------------------------------------------------------------
  4129. bool optimizeVarStringCompare(node_operator op, const CHqlBoundExpr & lhs, const CHqlBoundExpr & rhs, CHqlBoundExpr & tgt)
  4130. {
  4131. IHqlExpression * rhsExpr = rhs.expr;
  4132. if ((rhsExpr->getOperator() == no_constant) && (rhsExpr->queryType()->getStringLen() == 0))
  4133. {
  4134. if ((op == no_eq) || (op == no_ne))
  4135. {
  4136. tgt.expr.setown(createValue(op, LINK(boolType), createValue(no_deref, makeCharType(), lhs.expr.getLink()), getZero()));
  4137. return true;
  4138. }
  4139. }
  4140. return false;
  4141. }
  4142. void HqlCppTranslator::doBuildExprSetCompareAll(BuildCtx & ctx, IHqlExpression * set, CHqlBoundExpr & tgt, bool invert)
  4143. {
  4144. Owned<IHqlCppSetCursor> cursor = createSetSelector(ctx, set);
  4145. cursor->buildIsAll(ctx, tgt);
  4146. if (invert)
  4147. tgt.expr.setown(getInverse(tgt.expr));
  4148. }
  4149. void HqlCppTranslator::doBuildExprSetCompareNone(BuildCtx & ctx, IHqlExpression * set, CHqlBoundExpr & tgt, bool invert)
  4150. {
  4151. Owned<IHqlCppSetCursor> cursor = createSetSelector(ctx, set);
  4152. cursor->buildExists(ctx, tgt);
  4153. if (!invert)
  4154. tgt.expr.setown(getInverse(tgt.expr));
  4155. }
  4156. bool HqlCppTranslator::doBuildExprSetCompare(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4157. {
  4158. //Special case comparison against all and null set. All other work goes through a the order code.
  4159. node_operator exprOp = expr->getOperator();
  4160. if ((exprOp == no_eq) || (exprOp == no_ne))
  4161. {
  4162. OwnedHqlExpr left = normalizeListCasts(expr->queryChild(0));
  4163. OwnedHqlExpr right = normalizeListCasts(expr->queryChild(1));
  4164. if (right->getOperator() == no_all)
  4165. doBuildExprSetCompareAll(ctx, left, tgt, exprOp==no_ne);
  4166. else if (left->getOperator() == no_all)
  4167. doBuildExprSetCompareAll(ctx, right, tgt, exprOp==no_ne);
  4168. else if (isNullList(right))
  4169. doBuildExprSetCompareNone(ctx, left, tgt, exprOp==no_ne);
  4170. else if (isNullList(left))
  4171. doBuildExprSetCompareNone(ctx, right, tgt, exprOp==no_ne);
  4172. else
  4173. return false;
  4174. return true;
  4175. }
  4176. return false;
  4177. }
  4178. IHqlExpression * HqlCppTranslator::convertBoundStringToChar(const CHqlBoundExpr & bound)
  4179. {
  4180. OwnedHqlExpr element = getElementPointer(bound.expr);
  4181. Owned<ITypeInfo> charType = makeCharType(true);
  4182. switch (element->getOperator())
  4183. {
  4184. case no_constant:
  4185. {
  4186. IValue * value = element->queryValue();
  4187. return createConstant(value->castTo(charType));
  4188. }
  4189. case no_address:
  4190. return LINK(element->queryChild(0));
  4191. }
  4192. return createValue(no_deref, charType.getClear(), element.getClear());
  4193. }
  4194. void HqlCppTranslator::doBuildExprCompare(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4195. {
  4196. IHqlExpression * left = expr->queryChild(0);
  4197. IHqlExpression * right = expr->queryChild(1);
  4198. ITypeInfo * leftType = left->queryType()->queryPromotedType();
  4199. ITypeInfo * rightType = right->queryType()->queryPromotedType();
  4200. assertex(areTypesComparable(leftType,rightType));
  4201. OwnedHqlExpr orderExpr;
  4202. CHqlBoundExpr lhs, rhs;
  4203. node_operator compareOp = expr->getOperator();
  4204. type_t tc = leftType->getTypeCode();
  4205. switch (tc)
  4206. {
  4207. case type_string:
  4208. case type_data:
  4209. case type_qstring:
  4210. {
  4211. OwnedHqlExpr simpleLeft = getSimplifyCompareArg(left);
  4212. OwnedHqlExpr simpleRight = getSimplifyCompareArg(right);
  4213. HqlExprArray args;
  4214. buildCachedExpr(ctx, simpleLeft, lhs);
  4215. buildCachedExpr(ctx, simpleRight, rhs);
  4216. //update types - lengths may be constant by now..
  4217. leftType = lhs.queryType();
  4218. rightType = rhs.queryType();
  4219. IIdAtom * func = queryStrCompareFunc(leftType);
  4220. //MORE: Move blank string compare here?
  4221. if (lhs.length || rhs.length || needVarStringCompare(leftType, rightType))
  4222. {
  4223. args.append(*getBoundLength(lhs));
  4224. args.append(*getElementPointer(lhs.expr));
  4225. if (func == compareStrStrId && isBlankString(rhs.expr))
  4226. {
  4227. func = compareStrBlankId;
  4228. }
  4229. else
  4230. {
  4231. args.append(*getBoundLength(rhs));
  4232. args.append(*getElementPointer(rhs.expr));
  4233. }
  4234. orderExpr.setown(bindTranslatedFunctionCall(func, args));
  4235. }
  4236. else if (options.optimizeString1Compare &&
  4237. ((tc == type_string && isAscii(leftType)) || tc == type_data) &&
  4238. (leftType->getSize() == 1) && (rightType->getSize() == 1) &&
  4239. ((compareOp == no_eq) || (compareOp == no_ne)))
  4240. {
  4241. //Optimize equality/non equality of a single character string.
  4242. //Not done for > etc because of potential issues with signed/unsigned chars
  4243. args.append(*convertBoundStringToChar(lhs));
  4244. args.append(*convertBoundStringToChar(rhs));
  4245. tgt.expr.setown(createValue(compareOp, makeBoolType(), args));
  4246. return;
  4247. }
  4248. else
  4249. {
  4250. args.append(*getElementPointer(lhs.expr));
  4251. args.append(*getElementPointer(rhs.expr));
  4252. args.append(*getSizetConstant(leftType->getSize()));
  4253. orderExpr.setown(bindTranslatedFunctionCall(memcmpId, args));
  4254. }
  4255. break;
  4256. }
  4257. case type_unicode:
  4258. {
  4259. OwnedHqlExpr simpleLeft = LINK(left);//getSimplifyCompareArg(left);
  4260. OwnedHqlExpr simpleRight = LINK(right);//getSimplifyCompareArg(right);
  4261. HqlExprArray args;
  4262. buildCachedExpr(ctx, simpleLeft, lhs);
  4263. buildCachedExpr(ctx, simpleRight, rhs);
  4264. assertex(haveCommonLocale(leftType, rightType));
  4265. char const * locale = getCommonLocale(leftType, rightType)->str();
  4266. args.append(*getBoundLength(lhs));
  4267. args.append(*getElementPointer(lhs.expr));
  4268. args.append(*getBoundLength(rhs));
  4269. args.append(*getElementPointer(rhs.expr));
  4270. args.append(*createConstant(locale));
  4271. orderExpr.setown(bindTranslatedFunctionCall(compareUnicodeUnicodeId, args));
  4272. break;
  4273. }
  4274. case type_varunicode:
  4275. {
  4276. HqlExprArray args;
  4277. buildCachedExpr(ctx, left, lhs);
  4278. buildCachedExpr(ctx, right, rhs);
  4279. assertex(haveCommonLocale(leftType, rightType));
  4280. char const * locale = getCommonLocale(leftType, rightType)->str();
  4281. args.append(*getElementPointer(lhs.expr));
  4282. args.append(*getElementPointer(rhs.expr));
  4283. args.append(*createConstant(locale));
  4284. orderExpr.setown(bindTranslatedFunctionCall(compareVUnicodeVUnicodeId, args));
  4285. break;
  4286. }
  4287. case type_utf8:
  4288. {
  4289. OwnedHqlExpr simpleLeft = LINK(left);//getSimplifyCompareArg(left);
  4290. OwnedHqlExpr simpleRight = LINK(right);//getSimplifyCompareArg(right);
  4291. HqlExprArray args;
  4292. buildCachedExpr(ctx, simpleLeft, lhs);
  4293. buildCachedExpr(ctx, simpleRight, rhs);
  4294. assertex(haveCommonLocale(leftType, rightType));
  4295. char const * locale = getCommonLocale(leftType, rightType)->str();
  4296. args.append(*getBoundLength(lhs));
  4297. args.append(*getElementPointer(lhs.expr));
  4298. args.append(*getBoundLength(rhs));
  4299. args.append(*getElementPointer(rhs.expr));
  4300. args.append(*createConstant(locale));
  4301. orderExpr.setown(bindTranslatedFunctionCall(compareUtf8Utf8Id, args));
  4302. break;
  4303. }
  4304. case type_varstring:
  4305. {
  4306. HqlExprArray args;
  4307. buildCachedExpr(ctx, left, lhs);
  4308. buildCachedExpr(ctx, right, rhs);
  4309. //optimize comparison against null string.
  4310. if (optimizeVarStringCompare(compareOp, lhs, rhs, tgt) || optimizeVarStringCompare(compareOp, rhs, lhs, tgt))
  4311. return;
  4312. args.append(*getElementPointer(lhs.expr));
  4313. args.append(*getElementPointer(rhs.expr));
  4314. orderExpr.setown(bindTranslatedFunctionCall(compareVStrVStrId, args));
  4315. break;
  4316. }
  4317. case type_decimal:
  4318. {
  4319. HqlExprArray args;
  4320. buildCachedExpr(ctx, left, lhs);
  4321. buildCachedExpr(ctx, right, rhs);
  4322. if (!isPushed(lhs) && !isPushed(rhs) && isSameBasicType(lhs.queryType(), rhs.queryType()))
  4323. {
  4324. args.append(*getSizetConstant(leftType->getSize()));
  4325. args.append(*getPointer(lhs.expr));
  4326. args.append(*getPointer(rhs.expr));
  4327. orderExpr.setown(bindTranslatedFunctionCall(leftType->isSigned() ? DecCompareDecimalId : DecCompareUDecimalId, args));
  4328. }
  4329. else
  4330. {
  4331. bool pushedLhs = ensurePushed(ctx, lhs);
  4332. bool pushedRhs = ensurePushed(ctx, rhs);
  4333. //NB: Arguments could be pushed in opposite order 1 <=> x *2
  4334. if (pushedLhs && !pushedRhs)
  4335. orderExpr.setown(bindTranslatedFunctionCall(DecDistinctRId, args));
  4336. else
  4337. orderExpr.setown(bindTranslatedFunctionCall(DecDistinctId, args));
  4338. }
  4339. break;
  4340. }
  4341. case type_set:
  4342. case type_array:
  4343. {
  4344. if (doBuildExprSetCompare(ctx, expr, tgt))
  4345. return;
  4346. //fallthrough....
  4347. }
  4348. case type_dictionary:
  4349. case type_table:
  4350. case type_groupedtable:
  4351. case type_row:
  4352. case type_record:
  4353. {
  4354. IHqlExpression * orderExpr = createValue(no_order, LINK(signedType), LINK(left), LINK(right));
  4355. OwnedHqlExpr cmpExpr = createBoolExpr(compareOp, orderExpr, createConstant(signedType->castFrom(true, 0)));
  4356. buildExpr(ctx, cmpExpr, tgt);
  4357. return;
  4358. }
  4359. case type_swapint:
  4360. case type_packedint:
  4361. {
  4362. Owned<ITypeInfo> type = makeIntType(leftType->getSize(), leftType->isSigned());
  4363. IHqlExpression * intLeft = createValue(no_implicitcast, type.getLink(), LINK(left));
  4364. IHqlExpression * intRight = createValue(no_implicitcast, type.getLink(), LINK(right));
  4365. OwnedHqlExpr transformed = createValue(compareOp, makeBoolType(), intLeft, intRight);
  4366. doBuildPureSubExpr(ctx, transformed, tgt);
  4367. return;
  4368. }
  4369. default:
  4370. doBuildPureSubExpr(ctx, expr, tgt);
  4371. return;
  4372. }
  4373. tgt.expr.setown(createValue(compareOp, LINK(boolType), LINK(orderExpr), createConstant(orderExpr->queryType()->castFrom(true, 0))));
  4374. }
  4375. //---------------------------------------------------------------------------
  4376. //-- no_and --
  4377. void HqlCppTranslator::doBuildFilterToTarget(BuildCtx & ctx, const CHqlBoundTarget & isOk, HqlExprArray & conds, bool invert)
  4378. {
  4379. LinkedHqlExpr test = isOk.expr;
  4380. if (invert)
  4381. test.setown(getInverse(test));
  4382. unsigned max = conds.ordinality();
  4383. unsigned curIndex = 0;
  4384. for (unsigned outer =0; curIndex < max; outer += MAX_NESTED_CASES)
  4385. {
  4386. BuildCtx subctx(ctx);
  4387. if (outer != 0)
  4388. subctx.addFilter(test);
  4389. buildExprAssign(subctx, isOk, queryBoolExpr(invert)); // if(!invert,false,true) => invert
  4390. doBuildFilterNextAndRange(subctx, curIndex, MAX_NESTED_CASES, conds);
  4391. buildExprAssign(subctx, isOk, queryBoolExpr(!invert)); // if(!invert,true,false) => !invert
  4392. }
  4393. }
  4394. void HqlCppTranslator::doBuildFilterAnd(BuildCtx & ctx, IHqlExpression * expr)
  4395. {
  4396. HqlExprArray conds;
  4397. expr->unwindList(conds, no_and);
  4398. //Estimate the depth generated by the conditions - it may be wrong because
  4399. //aliases generated in outer levels can stop temporaries being required later.
  4400. unsigned numConds = conds.ordinality();
  4401. unsigned depthEstimate = 1;
  4402. for (unsigned i=1; i < numConds; i++)
  4403. if (requiresTemp(ctx, &conds.item(i), true))
  4404. depthEstimate++;
  4405. if (depthEstimate < MAX_NESTED_CASES)
  4406. {
  4407. unsigned curIndex = 0;
  4408. doBuildFilterNextAndRange(ctx, curIndex, numConds, conds);
  4409. }
  4410. else
  4411. {
  4412. CHqlBoundTarget isOk;
  4413. createTempFor(ctx, expr, isOk);
  4414. doBuildFilterToTarget(ctx, isOk, conds, false);
  4415. ctx.addFilter(isOk.expr);
  4416. }
  4417. }
  4418. void HqlCppTranslator::doBuildFilterNextAndRange(BuildCtx & ctx, unsigned & curIndex, unsigned maxIterations, HqlExprArray & conds)
  4419. {
  4420. unsigned max = conds.ordinality();
  4421. for (unsigned i=0; (i < maxIterations) && (curIndex != max); i++)
  4422. {
  4423. unsigned last;
  4424. expandAliases(ctx, &conds.item(curIndex));
  4425. for (last = curIndex+1; last < max; last++)
  4426. if (requiresTemp(ctx, &conds.item(last), true))
  4427. break;
  4428. doBuildFilterAndRange(ctx, curIndex, last, conds);
  4429. curIndex = last;
  4430. }
  4431. }
  4432. void HqlCppTranslator::doBuildFilterAndRange(BuildCtx & ctx, unsigned first, unsigned last, HqlExprArray & conds)
  4433. {
  4434. if (first+1 == last)
  4435. buildFilter(ctx, &conds.item(first));
  4436. else
  4437. {
  4438. HqlExprArray args;
  4439. for (unsigned k = first; k < last; k++)
  4440. args.append(OLINK(conds.item(k)));
  4441. OwnedHqlExpr test = createValue(no_and, makeBoolType(), args);
  4442. buildFilterViaExpr(ctx, test);
  4443. }
  4444. }
  4445. void HqlCppTranslator::doBuildAssignAnd(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr, bool invert)
  4446. {
  4447. HqlExprArray conds;
  4448. expr->unwindList(conds, no_and);
  4449. doBuildFilterToTarget(ctx, target, conds, invert);
  4450. }
  4451. void HqlCppTranslator::doBuildAssignOr(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  4452. {
  4453. BuildCtx subctx(ctx);
  4454. HqlExprArray conds;
  4455. expr->unwindList(conds, no_or);
  4456. unsigned first = 0;
  4457. unsigned max = conds.ordinality();
  4458. while (first < max)
  4459. {
  4460. unsigned last = first+1;
  4461. //special case no_in because it always creates a temporary, so may as well assign on its own
  4462. if (conds.item(first).getOperator() != no_in)
  4463. {
  4464. for (; last < max; last++)
  4465. {
  4466. IHqlExpression & cur = conds.item(last);
  4467. if ((cur.getOperator() == no_in) || requiresTemp(subctx, &cur, true))
  4468. break;
  4469. }
  4470. }
  4471. if (first != 0 || last != max)
  4472. {
  4473. if (last != first+1)
  4474. {
  4475. OwnedHqlExpr left = createBalanced(no_or, queryBoolType(), conds, first, last);
  4476. doBuildExprAssign(subctx, target, left);
  4477. }
  4478. else
  4479. buildExprAssign(subctx, target, &conds.item(first));
  4480. if (last != max)
  4481. {
  4482. OwnedHqlExpr inverse = getInverse(target.expr);
  4483. subctx.addFilter(inverse);
  4484. }
  4485. }
  4486. else
  4487. {
  4488. doBuildExprAssign(subctx, target, expr);
  4489. }
  4490. first = last;
  4491. }
  4492. }
  4493. //---------------------------------------------------------------------------
  4494. //-- no_case --
  4495. void HqlCppTranslator::doBuildCaseInfo(IHqlExpression * expr, HqlCppCaseInfo & info)
  4496. {
  4497. unsigned maxMaps = expr->numChildren()-1;
  4498. unsigned index = 0;
  4499. if (expr->getOperator() == no_case)
  4500. {
  4501. info.setCond(expr->queryChild(0));
  4502. index++;
  4503. }
  4504. for (;index<maxMaps;index++)
  4505. info.addPair(expr->queryChild(index));
  4506. info.setDefault(expr->queryChild(maxMaps));
  4507. }
  4508. void HqlCppTranslator::doBuildInCaseInfo(IHqlExpression * expr, HqlCppCaseInfo & info, IHqlExpression * normalized)
  4509. {
  4510. bool valueIfMatch = (expr->getOperator() == no_in);
  4511. HqlExprArray args;
  4512. LinkedHqlExpr values = normalized;
  4513. if (!normalized)
  4514. values.setown(normalizeListCasts(expr->queryChild(1)));
  4515. info.setCond(expr->queryChild(0));
  4516. cvtInListToPairs(args, values, valueIfMatch);
  4517. info.addPairs(args);
  4518. info.setDefault(queryBoolExpr(!valueIfMatch));
  4519. }
  4520. void HqlCppTranslator::doBuildAssignInStored(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  4521. {
  4522. OwnedHqlExpr values = normalizeListCasts(expr->queryChild(1));
  4523. CHqlBoundExpr bound;
  4524. if (values->isPure())
  4525. ctx.getMatchExpr(values, bound);
  4526. if (options.optimizeLoopInvariant && !bound.expr)
  4527. {
  4528. if (values->getOperator() == no_createset)
  4529. {
  4530. IHqlExpression * ds = values->queryChild(0);
  4531. //MORE: This is a special case - it should check if the dataset can be iterated without any projection
  4532. switch (ds->getOperator())
  4533. {
  4534. case no_select:
  4535. case no_rows:
  4536. break;
  4537. default:
  4538. {
  4539. //Evaluate the dataset into a temporary - the iterator will match it up later
  4540. //Evaluating the dataset instead of the set since this is likely to avoid a memcpy with link counted rows enabled.
  4541. LoopInvariantHelper helper;
  4542. BuildCtx bestctx(ctx);
  4543. if (helper.getBestContext(bestctx, ds))
  4544. {
  4545. CHqlBoundExpr temp;
  4546. buildTempExpr(ctx, ds, temp);
  4547. }
  4548. break;
  4549. }
  4550. }
  4551. }
  4552. else
  4553. {
  4554. LoopInvariantHelper helper;
  4555. BuildCtx bestctx(ctx);
  4556. if (helper.getBestContext(bestctx, values))
  4557. {
  4558. //Unfortunately this will do strength reduction again, but shouldn't take too long.
  4559. buildTempExpr(bestctx, values, bound);
  4560. }
  4561. }
  4562. }
  4563. if (bound.expr)
  4564. values.setown(bound.getTranslatedExpr());
  4565. bool valueIfMatch = (expr->getOperator() == no_in);
  4566. ITypeInfo * elementType = values->queryType()->queryChildType();
  4567. Owned<ITypeInfo> compareType = getPromotedECLCompareType(expr->queryChild(0)->queryType(), elementType);
  4568. CHqlBoundExpr boundSearch;
  4569. OwnedHqlExpr castSearch = ensureExprType(expr->queryChild(0), compareType);
  4570. BuildCtx subctx(ctx);
  4571. Owned<IHqlCppSetCursor> cursor = createSetSelector(ctx, values);
  4572. CHqlBoundExpr isAll;
  4573. cursor->buildIsAll(ctx, isAll);
  4574. if (isAll.expr->queryValue())
  4575. {
  4576. if (isAll.expr->queryValue()->getBoolValue())
  4577. {
  4578. buildExprAssign(subctx, target, queryBoolExpr(valueIfMatch));
  4579. //If this inverted the test we would need to do more.
  4580. return;
  4581. }
  4582. }
  4583. else
  4584. {
  4585. IHqlStmt * stmt = subctx.addFilter(isAll.expr);
  4586. buildExprAssign(subctx, target, queryBoolExpr(valueIfMatch));
  4587. subctx.selectElse(stmt);
  4588. }
  4589. //result = false/true
  4590. buildSimpleExpr(subctx, castSearch, boundSearch);
  4591. buildExprAssign(subctx, target, queryBoolExpr(!valueIfMatch));
  4592. //iterate through the set
  4593. bool needToBreak = !cursor->isSingleValued();
  4594. CHqlBoundExpr boundCurElement;
  4595. cursor->buildIterateLoop(subctx, boundCurElement, needToBreak);
  4596. OwnedHqlExpr curElement = boundCurElement.getTranslatedExpr();
  4597. OwnedHqlExpr castCurElement = ensureExprType(curElement, compareType);
  4598. //if match then
  4599. OwnedHqlExpr matchTest = createValue(no_eq, makeBoolType(), boundSearch.getTranslatedExpr(), LINK(castCurElement));
  4600. buildFilter(subctx, matchTest);
  4601. //result = true/false + break loop.
  4602. buildExprAssign(subctx, target, queryBoolExpr(valueIfMatch));
  4603. if (needToBreak)
  4604. subctx.addBreak();
  4605. }
  4606. void HqlCppTranslator::doBuildAssignInCreateSet(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  4607. {
  4608. IHqlExpression * setExpr = expr->queryChild(1);
  4609. IHqlExpression * dataset = setExpr->queryChild(0);
  4610. IHqlExpression * selected = setExpr->queryChild(1);
  4611. bool valueIfMatch = (expr->getOperator() == no_in);
  4612. ITypeInfo * elementType = setExpr->queryType()->queryChildType();
  4613. Owned<ITypeInfo> compareType = getPromotedECLCompareType(expr->queryChild(0)->queryType(), elementType);
  4614. CHqlBoundExpr boundSearch;
  4615. OwnedHqlExpr castSearch = ensureExprType(expr->queryChild(0), compareType);
  4616. //result = false/true
  4617. buildSimpleExpr(ctx, castSearch, boundSearch);
  4618. buildExprAssign(ctx, target, queryBoolExpr(!valueIfMatch));
  4619. //iterate through the set
  4620. bool needToBreak = !hasNoMoreRowsThan(dataset, 1);
  4621. BuildCtx loopctx(ctx);
  4622. buildDatasetIterate(loopctx, dataset, needToBreak);
  4623. //if match then
  4624. OwnedHqlExpr matchTest = createValue(no_eq, makeBoolType(), boundSearch.getTranslatedExpr(), ensureExprType(selected, compareType));
  4625. buildFilter(loopctx, matchTest);
  4626. //result = true/false + break loop.
  4627. buildExprAssign(loopctx, target, queryBoolExpr(valueIfMatch));
  4628. if (needToBreak)
  4629. loopctx.addBreak();
  4630. }
  4631. void HqlCppTranslator::doBuildAssignIn(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  4632. {
  4633. OwnedHqlExpr values = normalizeListCasts(expr->queryChild(1));
  4634. node_operator op = expr->getOperator();
  4635. bool valueIfMatch = (op == no_in);
  4636. switch (values->getOperator())
  4637. {
  4638. case no_all:
  4639. buildExprAssign(ctx, target, queryBoolExpr(valueIfMatch));
  4640. break;
  4641. case no_null:
  4642. buildExprAssign(ctx, target, queryBoolExpr(!valueIfMatch));
  4643. break;
  4644. case no_list:
  4645. {
  4646. HqlCppCaseInfo info(*this);
  4647. doBuildInCaseInfo(expr, info, values);
  4648. info.buildAssign(ctx, target);
  4649. break;
  4650. }
  4651. case no_createset:
  4652. {
  4653. //Look further at bug #52745.eclxml and what causes the poor code.
  4654. //if (canIterateInline(&ctx, values->queryChild(0)))
  4655. // doBuildAssignInCreateSet(ctx, target, expr);
  4656. //else
  4657. doBuildAssignInStored(ctx, target, expr);
  4658. break;
  4659. }
  4660. #if 0
  4661. //Possible optimizations, but I don't have any examples that would trigger them, so don't enable
  4662. case no_if:
  4663. {
  4664. BuildCtx subctx(ctx);
  4665. OwnedHqlExpr inLhs = createValue(expr->getOperator(), LINK(expr->queryChild(0)), LINK(values->queryChild(1)));
  4666. OwnedHqlExpr inRhs = createValue(expr->getOperator(), LINK(expr->queryChild(0)), LINK(values->queryChild(2)));
  4667. IHqlStmt * stmt = buildFilterViaExpr(subctx, values->queryChild(0));
  4668. buildExprAssign(subctx, target, inLhs);
  4669. subctx.selectElse(stmt);
  4670. buildExprAssign(subctx, target, inRhs);
  4671. break;
  4672. }
  4673. case no_addsets:
  4674. if (op == no_in)
  4675. {
  4676. BuildCtx subctx(ctx);
  4677. OwnedHqlExpr inLhs = createValue(expr->getOperator(), LINK(expr->queryChild(0)), LINK(values->queryChild(0)));
  4678. OwnedHqlExpr inRhs = createValue(expr->getOperator(), LINK(expr->queryChild(0)), LINK(values->queryChild(1)));
  4679. buildExprAssign(ctx, target, inLhs);
  4680. OwnedHqlExpr test = getInverse(target.expr);
  4681. subctx.addFilter(test);
  4682. buildExprAssign(subctx, target, inRhs);
  4683. break;
  4684. }
  4685. #endif
  4686. //fall through
  4687. default:
  4688. doBuildAssignInStored(ctx, target, expr);
  4689. break;
  4690. }
  4691. }
  4692. //---------------------------------------------------------------------------
  4693. void HqlCppTranslator::doBuildExprInDict(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4694. {
  4695. IHqlExpression *dict = expr->queryChild(1);
  4696. Owned<IHqlCppDatasetCursor> cursor = createDatasetSelector(ctx, dict);
  4697. cursor->buildInDataset(ctx, expr, tgt);
  4698. }
  4699. void HqlCppTranslator::doBuildExprCountDict(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4700. {
  4701. IHqlExpression *dict = expr->queryChild(0);
  4702. Owned<IHqlCppDatasetCursor> cursor = createDatasetSelector(ctx, dict);
  4703. cursor->buildCountDict(ctx, tgt); // not the same as buildCount - that is the size of the table, we want the number of populated entries
  4704. }
  4705. void HqlCppTranslator::doBuildExprExistsDict(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4706. {
  4707. IHqlExpression *dict = expr->queryChild(0);
  4708. Owned<IHqlCppDatasetCursor> cursor = createDatasetSelector(ctx, dict);
  4709. cursor->buildExistsDict(ctx, tgt);
  4710. }
  4711. //---------------------------------------------------------------------------
  4712. void HqlCppTranslator::doBuildExprArith(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4713. {
  4714. ITypeInfo * type = expr->queryType();
  4715. switch (type->getTypeCode())
  4716. {
  4717. case type_decimal:
  4718. {
  4719. bindAndPush(ctx, expr->queryChild(0));
  4720. bindAndPush(ctx, expr->queryChild(1));
  4721. HqlExprArray args;
  4722. IIdAtom * func;
  4723. switch (expr->getOperator())
  4724. {
  4725. case no_add:
  4726. func = DecAddId;
  4727. break;
  4728. case no_div:
  4729. func = DecDivideId;
  4730. args.append(*getSizetConstant(options.divideByZeroAction));
  4731. break;
  4732. case no_modulus:
  4733. func = DecModulusId;
  4734. args.append(*getSizetConstant(options.divideByZeroAction));
  4735. break;
  4736. case no_mul:
  4737. func = DecMulId;
  4738. break;
  4739. case no_sub:
  4740. func = DecSubId;
  4741. break;
  4742. default: UNIMPLEMENTED;
  4743. }
  4744. callProcedure(ctx, func, args);
  4745. tgt.expr.setown(createValue(no_decimalstack, LINK(type)));
  4746. }
  4747. break;
  4748. case type_swapint:
  4749. case type_packedint:
  4750. {
  4751. //someone is being deliberately perverse....
  4752. ITypeInfo * type = expr->queryType();
  4753. ITypeInfo * intType = makeIntType(type->getSize(), type->isSigned());
  4754. IHqlExpression * lhs = expr->queryChild(0);
  4755. IHqlExpression * rhs = expr->queryChild(1);
  4756. assertex(isSameBasicType(type, lhs->queryType()));
  4757. assertex(isSameBasicType(type, rhs->queryType()));
  4758. lhs = createValue(no_implicitcast, LINK(intType), LINK(lhs));
  4759. rhs = createValue(no_implicitcast, LINK(intType), LINK(rhs));
  4760. IHqlExpression * newExpr = createValue(expr->getOperator(), intType, lhs, rhs);
  4761. OwnedHqlExpr castNewExpr = createValue(no_implicitcast, LINK(type), newExpr);
  4762. buildExpr(ctx, castNewExpr, tgt);
  4763. break;
  4764. }
  4765. default:
  4766. doBuildPureSubExpr(ctx, expr, tgt);
  4767. break;
  4768. }
  4769. }
  4770. void HqlCppTranslator::doBuildExprAdd(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4771. {
  4772. if (expr->queryType()->getTypeCode() != type_int)
  4773. {
  4774. doBuildExprArith(ctx, expr, tgt);
  4775. return;
  4776. }
  4777. CHqlBoundExpr boundL, boundR;
  4778. buildExpr(ctx, expr->queryChild(0), boundL);
  4779. bool WORK_AROUND_GCC_CONDITION_BUG = (options.targetCompiler == GccCppCompiler);
  4780. if (WORK_AROUND_GCC_CONDITION_BUG && expr->queryChild(1)->getOperator() == no_if)
  4781. buildTempExpr(ctx, expr->queryChild(1), boundR);
  4782. else
  4783. buildExpr(ctx, expr->queryChild(1), boundR);
  4784. tgt.expr.setown(adjustBoundIntegerValues(boundL.expr, boundR.expr, false));
  4785. }
  4786. //---------------------------------------------------------------------------
  4787. void HqlCppTranslator::doBuildExprNegate(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4788. {
  4789. ITypeInfo * type = expr->queryType();
  4790. switch (type->getTypeCode())
  4791. {
  4792. case type_decimal:
  4793. {
  4794. bindAndPush(ctx, expr->queryChild(0));
  4795. HqlExprArray args;
  4796. callProcedure(ctx, DecNegateId, args);
  4797. tgt.expr.setown(createValue(no_decimalstack, LINK(type)));
  4798. }
  4799. break;
  4800. case type_data:
  4801. case type_qstring:
  4802. case type_string:
  4803. case type_varstring:
  4804. case type_unicode:
  4805. case type_varunicode:
  4806. case type_utf8:
  4807. throwError(HQLERR_MinusOnString);
  4808. default:
  4809. doBuildPureSubExpr(ctx, expr, tgt);
  4810. break;
  4811. }
  4812. }
  4813. //---------------------------------------------------------------------------
  4814. void HqlCppTranslator::doBuildExprRound(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4815. {
  4816. IHqlExpression * arg = expr->queryChild(0);
  4817. node_operator op = expr->getOperator();
  4818. switch (arg->queryType()->getTypeCode())
  4819. {
  4820. case type_decimal:
  4821. {
  4822. bindAndPush(ctx, arg);
  4823. HqlExprArray args;
  4824. if (op == no_round)
  4825. {
  4826. IHqlExpression * places = queryRealChild(expr, 1);
  4827. if (places)
  4828. {
  4829. args.append(*LINK(places));
  4830. callProcedure(ctx, DecRoundToId, args);
  4831. }
  4832. else
  4833. callProcedure(ctx, DecRoundId, args);
  4834. }
  4835. else
  4836. callProcedure(ctx, DecRoundUpId, args);
  4837. assertex(expr->queryType()->getTypeCode() == type_decimal);
  4838. tgt.expr.setown(createValue(no_decimalstack, expr->getType()));
  4839. }
  4840. break;
  4841. default:
  4842. {
  4843. if (op == no_round)
  4844. {
  4845. if (queryRealChild(expr, 1))
  4846. doBuildExprSysFunc(ctx, expr, tgt, roundToId);
  4847. else
  4848. doBuildExprSysFunc(ctx, expr, tgt, roundId);
  4849. }
  4850. else
  4851. doBuildExprSysFunc(ctx, expr, tgt, roundupId);
  4852. break;
  4853. }
  4854. }
  4855. }
  4856. void HqlCppTranslator::doBuildExprTrunc(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4857. {
  4858. IHqlExpression * arg = expr->queryChild(0);
  4859. switch (arg->queryType()->getTypeCode())
  4860. {
  4861. case type_decimal:
  4862. {
  4863. bindAndPush(ctx, arg);
  4864. HqlExprArray args;
  4865. callProcedure(ctx, DecTruncateId, args);
  4866. assertex(expr->queryType()->getTypeCode() == type_decimal);
  4867. tgt.expr.setown(createValue(no_decimalstack, expr->getType()));
  4868. }
  4869. break;
  4870. default:
  4871. {
  4872. doBuildExprSysFunc(ctx, expr, tgt, truncateId);
  4873. break;
  4874. }
  4875. }
  4876. }
  4877. //---------------------------------------------------------------------------
  4878. void HqlCppTranslator::doBuildExprAbs(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  4879. {
  4880. ITypeInfo * type = expr->queryType();
  4881. switch (type->getTypeCode())
  4882. {
  4883. case type_decimal:
  4884. {
  4885. bindAndPush(ctx, expr->queryChild(0));
  4886. HqlExprArray args;
  4887. IIdAtom * func = DecAbsId;
  4888. callProcedure(ctx, func, args);
  4889. tgt.expr.setown(createValue(no_decimalstack, LINK(type)));
  4890. }
  4891. break;
  4892. case type_int:
  4893. case type_swapint:
  4894. case type_packedint:
  4895. case type_real:
  4896. {
  4897. CHqlBoundExpr temp;
  4898. buildTempExpr(ctx, expr->queryChild(0), temp);
  4899. ITypeInfo * type = expr->getType();
  4900. IHqlExpression * cond = createValue(no_ge, makeBoolType(), temp.expr.getLink(), createConstant(type->castFrom(true, 0)));
  4901. tgt.expr.setown(createValue(no_if, type, cond, temp.expr.getLink(), createValue(no_negate, LINK(type), temp.expr.getLink())));
  4902. }
  4903. break;
  4904. default:
  4905. buildExpr(ctx, expr->queryChild(0), tgt);
  4906. break;
  4907. }
  4908. }
  4909. //---------------------------------------------------------------------------
  4910. void HqlCppTranslator::doBuildAssignCatch(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  4911. {
  4912. BuildCtx subctx(ctx);
  4913. subctx.addGroup();
  4914. BuildCtx tryctx(subctx);
  4915. tryctx.addQuotedCompound("try");
  4916. buildExprAssign(tryctx, target, expr->queryChild(0));
  4917. BuildCtx catchctx(subctx);
  4918. catchctx.addQuotedCompound("catch (IException * e)");
  4919. IHqlExpression * exceptVar = associateLocalFailure(catchctx, "e");
  4920. buildExprAssign(catchctx, target, expr->queryChild(1));
  4921. HqlExprArray args;
  4922. args.append(*LINK(exceptVar));
  4923. callProcedure(catchctx, freeExceptionId, args);
  4924. }
  4925. //---------------------------------------------------------------------------
  4926. //-- no_externalcall --
  4927. IHqlExpression * getCastParameter(IHqlExpression * curParam, ITypeInfo * argType)
  4928. {
  4929. type_t atc = argType->getTypeCode();
  4930. //Remove a few unnecessary casts which clutter up the code/or make it less efficient
  4931. if (isCast(curParam) && (curParam->queryType() == argType))
  4932. {
  4933. //If the following code is incorrect, the casts should get added back by the code that follows
  4934. IHqlExpression * uncast = curParam->queryChild(0);
  4935. //casts to larger size integers
  4936. if (atc == type_int)
  4937. curParam = uncast;
  4938. else if ((atc == type_unicode) && (uncast->queryType()->getTypeCode() == type_varunicode))
  4939. curParam = uncast;
  4940. else if ((atc == type_string) && (uncast->queryType()->getTypeCode() == type_varstring))
  4941. curParam = uncast;
  4942. }
  4943. ITypeInfo * paramType = curParam->queryType();
  4944. type_t ptc = paramType->getTypeCode();
  4945. if ((atc != ptc) && !(atc == type_row && ptc == type_table))
  4946. {
  4947. switch (atc)
  4948. {
  4949. case type_unicode:
  4950. if ((argType->getSize() == UNKNOWN_LENGTH) && (ptc == type_varunicode))
  4951. return LINK(curParam);
  4952. break;
  4953. case type_string:
  4954. if ((argType->getSize() == UNKNOWN_LENGTH) &&
  4955. ((ptc == type_varstring) && (argType->queryCharset() == paramType->queryCharset())))
  4956. return LINK(curParam);
  4957. break;
  4958. case type_dictionary:
  4959. case type_row:
  4960. case type_table:
  4961. case type_groupedtable:
  4962. {
  4963. IHqlExpression * record = queryRecord(argType);
  4964. if (record && (record->numChildren() != 0))
  4965. {
  4966. //really need to project instead.
  4967. //return ensureExprType(curParam, argType);
  4968. }
  4969. return LINK(curParam);
  4970. }
  4971. }
  4972. return ensureExprType(curParam, argType);
  4973. }
  4974. ITypeInfo * childType = argType->queryChildType();
  4975. if (paramType->queryTypeBase() != argType)
  4976. {
  4977. size32_t argSize = argType->getSize();
  4978. switch (atc)
  4979. {
  4980. case type_int:
  4981. case type_real:
  4982. if (argSize <= paramType->getSize())
  4983. return ensureExprType(curParam, argType);
  4984. break;
  4985. case type_decimal:
  4986. //Don't need explicit cast to cast between different sizes of these types...
  4987. //Will be done automatically by the compiler.
  4988. break;
  4989. case type_unicode:
  4990. //Don't need cast between different locales
  4991. if ((argSize != paramType->getSize()) && (argSize != UNKNOWN_LENGTH))
  4992. {
  4993. Owned<ITypeInfo> modArgType = makeUnicodeType(argType->getStringLen(), curParam->queryType()->queryLocale());
  4994. return ensureExprType(curParam, modArgType);
  4995. }
  4996. break;
  4997. case type_varunicode:
  4998. //Don't need cast between different locales
  4999. if(argSize != paramType->getSize())
  5000. {
  5001. Owned<ITypeInfo> modArgType = makeVarUnicodeType(argType->getStringLen(), curParam->queryType()->queryLocale());
  5002. return ensureExprType(curParam, modArgType);
  5003. }
  5004. break;
  5005. case type_utf8:
  5006. //Don't need cast between different locales
  5007. if(argSize != paramType->getSize())
  5008. {
  5009. Owned<ITypeInfo> modArgType = makeUtf8Type(argType->getStringLen(), curParam->queryType()->queryLocale());
  5010. return ensureExprType(curParam, modArgType);
  5011. }
  5012. break;
  5013. case type_set:
  5014. if (childType)
  5015. return ensureExprType(curParam, argType);
  5016. break;
  5017. case type_dictionary:
  5018. case type_table:
  5019. case type_groupedtable:
  5020. case type_row:
  5021. {
  5022. IHqlExpression * record = queryRecord(argType);
  5023. if (record && (record->numChildren() != 0))
  5024. {
  5025. //really need to project instead.
  5026. //return ensureExprType(curParam, argType);
  5027. }
  5028. break;
  5029. }
  5030. default:
  5031. return ensureExprType(curParam, argType);
  5032. }
  5033. }
  5034. // if (argType->queryCharset() != paramType->queryCharset())
  5035. // return ensureExprType(curParam, argType);
  5036. return LINK(curParam);
  5037. }
  5038. void HqlCppTranslator::normalizeBoundExpr(BuildCtx & ctx, CHqlBoundExpr & bound)
  5039. {
  5040. bound.expr.setown(convertWrapperToPointer(bound.expr));
  5041. }
  5042. IHqlExpression * HqlCppTranslator::doBuildInternalFunction(IHqlExpression * funcdef)
  5043. {
  5044. unsigned match = internalFunctions.find(*funcdef);
  5045. if (match != NotFound)
  5046. return LINK(&internalFunctionExternals.item(match));
  5047. OwnedHqlExpr externalFuncdef = createExternalFuncdefFromInternal(funcdef);
  5048. internalFunctions.append(*LINK(funcdef));
  5049. internalFunctionExternals.append(*LINK(externalFuncdef));
  5050. buildFunctionDefinition(funcdef);
  5051. return LINK(externalFuncdef);
  5052. }
  5053. void HqlCppTranslator::doBuildCall(BuildCtx & ctx, const CHqlBoundTarget * tgt, IHqlExpression * expr, CHqlBoundExpr * result)
  5054. {
  5055. if (result && expr->isPure() && ctx.getMatchExpr(expr, *result))
  5056. return;
  5057. LinkedHqlExpr funcdef;
  5058. if (expr->getOperator() == no_externalcall)
  5059. {
  5060. funcdef.set(expr->queryExternalDefinition());
  5061. assertex(funcdef != NULL);
  5062. useFunction(funcdef);
  5063. }
  5064. else
  5065. {
  5066. IHqlExpression * def = expr->queryBody()->queryFunctionDefinition();
  5067. assertex(def && def->getOperator() == no_funcdef);
  5068. funcdef.setown(doBuildInternalFunction(def));
  5069. }
  5070. IHqlExpression * external = funcdef->queryChild(0);
  5071. IHqlExpression * formals = funcdef->queryChild(1);
  5072. if (external->hasAttribute(ctxmethodAtom))
  5073. ensureContextAvailable(ctx);
  5074. if (external->hasAttribute(gctxmethodAtom) || external->hasAttribute(globalContextAtom))
  5075. {
  5076. if (!ctx.queryMatchExpr(globalContextMarkerExpr))
  5077. throwError1(HQLERR_FuncNotInGlobalContext, external->queryName()->str());
  5078. }
  5079. unsigned maxArg = formals->numChildren();
  5080. unsigned maxParam = expr->numChildren();
  5081. bool returnByReference = false;
  5082. bool returnMustAssign = false;
  5083. HqlExprArray args;
  5084. unsigned arg = 0;
  5085. unsigned param;
  5086. unsigned firstParam = 0;
  5087. bool isMethod = external->hasAttribute(methodAtom) || external->hasAttribute(omethodAtom) ;
  5088. bool newFormatSet = !external->hasAttribute(oldSetFormatAtom);
  5089. bool translateSetReturn = false;
  5090. if (isMethod)
  5091. {
  5092. CHqlBoundExpr bound;
  5093. buildExpr(ctx, expr->queryChild(firstParam++), bound);
  5094. args.append(*bound.expr.getClear());
  5095. }
  5096. if (external->hasAttribute(userMatchFunctionAtom))
  5097. {
  5098. //MORE: Test valid in this location...
  5099. args.append(*createVariable("walker", makeBoolType()));
  5100. }
  5101. IHqlExpression * extendAttr = external->queryAttribute(extendAtom);
  5102. bool doneAssign = false;
  5103. CHqlBoundExpr localBound;
  5104. CHqlBoundTarget localTarget;
  5105. Linked<BoundRow> resultRow;
  5106. Linked<BoundRow> resultRowBuilder;
  5107. Owned<ITypeInfo> targetType = tgt ? LINK(tgt->queryType()) : makeVoidType();
  5108. ITypeInfo * retType = funcdef->queryType()->queryChildType();
  5109. BoundRow * resultSelfCursor = NULL;
  5110. switch (retType->getTypeCode())
  5111. {
  5112. case type_varstring:
  5113. case type_varunicode:
  5114. if (retType->getSize() == UNKNOWN_LENGTH)
  5115. {
  5116. if (hasConstModifier(retType))
  5117. break;
  5118. returnMustAssign = true;
  5119. if (tgt && !tgt->isFixedSize())
  5120. {
  5121. doneAssign = true;
  5122. localBound.expr.set(tgt->expr);
  5123. }
  5124. else
  5125. localBound.expr.setown(createWrapperTemp(ctx, retType, typemod_none));
  5126. break;
  5127. }
  5128. else
  5129. {
  5130. //fixed size strings => just pass pointer
  5131. IHqlExpression * resultVar = ctx.getTempDeclare(retType, NULL);
  5132. args.append(*getElementPointer(resultVar));
  5133. localBound.expr.setown(resultVar);
  5134. }
  5135. returnByReference = true;
  5136. break;
  5137. case type_string:
  5138. case type_data:
  5139. case type_qstring:
  5140. case type_unicode:
  5141. case type_utf8:
  5142. if (retType->getSize() == UNKNOWN_LENGTH)
  5143. {
  5144. OwnedHqlExpr lenVar;
  5145. OwnedHqlExpr strVar;
  5146. if (tgt && !tgt->isFixedSize())
  5147. {
  5148. doneAssign = true;
  5149. strVar.set(tgt->expr);
  5150. lenVar.set(tgt->length);
  5151. }
  5152. else
  5153. {
  5154. strVar.setown(createWrapperTemp(ctx, retType, typemod_none));
  5155. lenVar.setown(ctx.getTempDeclare(sizetType, NULL));
  5156. }
  5157. args.append(*LINK(lenVar));
  5158. args.append(*createValue(no_reference, strVar->getType(), LINK(strVar), LINK(extendAttr)));
  5159. localBound.length.set(lenVar);
  5160. localBound.expr.set(strVar);
  5161. }
  5162. else
  5163. {
  5164. //fixed size strings => just pass pointer
  5165. if (tgt && tgt->isFixedSize() && targetType->queryPromotedType() == retType)
  5166. {
  5167. doneAssign = true;
  5168. args.append(*getElementPointer(tgt->expr));
  5169. localBound.expr.set(tgt->expr);
  5170. }
  5171. else
  5172. {
  5173. IHqlExpression * resultVar = ctx.getTempDeclare(retType, NULL);
  5174. args.append(*getElementPointer(resultVar));
  5175. localBound.expr.setown(resultVar);
  5176. }
  5177. }
  5178. returnByReference = true;
  5179. break;
  5180. case type_set:
  5181. {
  5182. translateSetReturn = !newFormatSet;
  5183. OwnedHqlExpr lenVar;
  5184. OwnedHqlExpr strVar;
  5185. OwnedHqlExpr isAll;
  5186. if (tgt && !tgt->isFixedSize())
  5187. {
  5188. doneAssign = true;
  5189. strVar.set(tgt->expr);
  5190. if (translateSetReturn)
  5191. lenVar.setown(ctx.getTempDeclare(unsignedType, NULL));
  5192. else
  5193. lenVar.set(tgt->length);
  5194. assertex(tgt->isAll != NULL);
  5195. isAll.set(tgt->isAll);
  5196. }
  5197. else
  5198. {
  5199. Owned<ITypeInfo> dataType = makeDataType(UNKNOWN_LENGTH);
  5200. strVar.setown(createWrapperTemp(ctx, dataType, typemod_none));
  5201. if (translateSetReturn)
  5202. {
  5203. lenVar.setown(ctx.getTempDeclare(unsignedType, NULL));
  5204. }
  5205. else
  5206. {
  5207. lenVar.setown(ctx.getTempDeclare(sizetType, NULL));
  5208. isAll.setown(ctx.getTempDeclare(boolType, NULL));
  5209. }
  5210. }
  5211. if (newFormatSet)
  5212. args.append(*LINK(isAll));
  5213. args.append(*LINK(lenVar));
  5214. args.append(*createValue(no_reference, strVar->getType(), LINK(strVar)));
  5215. if (newFormatSet)
  5216. {
  5217. localBound.length.set(lenVar);
  5218. }
  5219. else
  5220. {
  5221. localBound.count.set(lenVar);
  5222. if (isAll && !isAll->queryValue())
  5223. ctx.addAssign(isAll, queryBoolExpr(false));
  5224. }
  5225. localBound.isAll.set(isAll);
  5226. localBound.expr.setown(createValue(no_implicitcast, makeReferenceModifier(LINK(retType)), LINK(strVar)));
  5227. returnByReference = true;
  5228. break;
  5229. }
  5230. case type_dictionary:
  5231. case type_table:
  5232. case type_groupedtable:
  5233. {
  5234. if (hasStreamedModifier(retType))
  5235. {
  5236. args.append(*createRowAllocator(ctx, ::queryRecord(retType)));
  5237. break;
  5238. }
  5239. const CHqlBoundTarget * curTarget;
  5240. if (tgt && !tgt->isFixedSize() &&
  5241. (hasLinkCountedModifier(targetType) == hasLinkCountedModifier(retType)))
  5242. {
  5243. doneAssign = true;
  5244. curTarget = tgt;
  5245. }
  5246. else
  5247. {
  5248. curTarget = &localTarget;
  5249. ExpressionFormat format = (hasLinkCountedModifier(retType) ? FormatLinkedDataset : FormatBlockedDataset);
  5250. createTempFor(ctx, retType, localTarget, typemod_none, format);
  5251. }
  5252. if (curTarget->count)
  5253. args.append(*LINK(curTarget->count));
  5254. if (curTarget->length)
  5255. args.append(*LINK(curTarget->length));
  5256. args.append(*createValue(no_reference, curTarget->expr->getType(), LINK(curTarget->expr)));
  5257. if (hasLinkCountedModifier(retType) && hasNonNullRecord(retType) && getBoolAttribute(external, allocatorAtom, true))
  5258. args.append(*createRowAllocator(ctx, ::queryRecord(retType)));
  5259. localBound.setFromTarget(*curTarget);
  5260. // localBound.expr.setown(createValue(no_implicitcast, makeReferenceModifier(LINK(retType)), LINK(strVar)));
  5261. returnByReference = true;
  5262. break;
  5263. }
  5264. case type_row:
  5265. {
  5266. if (hasLinkCountedModifier(retType))
  5267. {
  5268. //Always assign link counted rows to a temporary (or the target) to ensure the are not leaked.
  5269. returnMustAssign = true;
  5270. if (tgt && hasLinkCountedModifier(targetType) && recordTypesMatch(targetType, retType))
  5271. {
  5272. doneAssign = true;
  5273. localBound.expr.set(tgt->expr);
  5274. }
  5275. else
  5276. localBound.expr.setown(createWrapperTemp(ctx, retType, typemod_none));
  5277. }
  5278. else
  5279. {
  5280. //row, just pass pointer
  5281. if (tgt && recordTypesMatch(targetType, retType) && !hasLinkCountedModifier(targetType))
  5282. {
  5283. doneAssign = true;
  5284. args.append(*getPointer(tgt->expr));
  5285. localBound.expr.set(tgt->expr);
  5286. }
  5287. else
  5288. {
  5289. if (isVariableSizeRecord(expr->queryRecord()))
  5290. {
  5291. const char * name = expr->queryName()->str();
  5292. throwError1(HQLERR_VariableRowMustBeLinked, name ? name : "");
  5293. }
  5294. resultRow.setown(declareTempRow(ctx, ctx, expr));
  5295. resultRowBuilder.setown(createRowBuilder(ctx, resultRow));
  5296. IHqlExpression * bound = resultRowBuilder->queryBound();
  5297. args.append(*getPointer(bound));
  5298. localBound.expr.setown(getPointer(resultRow->queryBound()));
  5299. }
  5300. returnByReference = true;
  5301. }
  5302. break;
  5303. }
  5304. case type_transform:
  5305. {
  5306. //Ugly, but target selector is passed in as the target
  5307. assertex(tgt && tgt->expr);
  5308. resultSelfCursor = resolveSelectorDataset(ctx, tgt->expr);
  5309. assertex(resultSelfCursor);
  5310. if (resultSelfCursor->queryBuilder())
  5311. args.append(*LINK(resultSelfCursor->queryBuilder()));
  5312. else
  5313. throwUnexpectedX("Expected a dynamic target for a transform - legacy not supported");
  5314. returnByReference = true;
  5315. doneAssign = true;
  5316. break;
  5317. }
  5318. case type_array:
  5319. UNIMPLEMENTED;
  5320. }
  5321. for (param = firstParam; param < maxParam; param++)
  5322. {
  5323. IHqlExpression * curParam = expr->queryChild(param);
  5324. if (curParam->isAttribute())
  5325. continue;
  5326. if (arg >= maxArg)
  5327. {
  5328. PrintLog("Too many parameters passed to function '%s'", expr->queryName()->str());
  5329. throwError1(HQLERR_TooManyParameters, expr->queryName()->str());
  5330. }
  5331. CHqlBoundExpr bound;
  5332. IHqlExpression * curArg = formals->queryChild(arg);
  5333. ITypeInfo * argType = curArg->queryType();
  5334. OwnedHqlExpr castParam = getCastParameter(curParam, argType);
  5335. type_t atc = argType->getTypeCode();
  5336. switch (atc)
  5337. {
  5338. case type_dictionary:
  5339. case type_table:
  5340. case type_groupedtable:
  5341. {
  5342. ExpressionFormat format = queryNaturalFormat(argType);
  5343. buildDataset(ctx, castParam, bound, format);
  5344. break;
  5345. }
  5346. case type_row:
  5347. {
  5348. Owned<IReferenceSelector> selector = buildNewRow(ctx, castParam);
  5349. if (hasLinkCountedModifier(argType))
  5350. selector.setown(ensureLinkCountedRow(ctx, selector));
  5351. selector->buildAddress(ctx, bound);
  5352. break;
  5353. }
  5354. case type_set:
  5355. {
  5356. ITypeInfo * elemType = argType->queryChildType();
  5357. if (newFormatSet && elemType && (elemType->getTypeCode() != type_any) && (elemType != castParam->queryType()->queryChildType()))
  5358. buildExprEnsureType(ctx, castParam, bound, argType);
  5359. else
  5360. buildExpr(ctx, castParam, bound);
  5361. if (isUnknownSize(elemType))
  5362. {
  5363. ITypeInfo * boundElemType = bound.queryType()->queryChildType();
  5364. assertex(!boundElemType || isUnknownSize(boundElemType));
  5365. }
  5366. normalizeBoundExpr(ctx, bound);
  5367. break;
  5368. }
  5369. case type_decimal:
  5370. {
  5371. buildSimpleExpr(ctx, castParam, bound);
  5372. normalizeBoundExpr(ctx, bound);
  5373. break;
  5374. }
  5375. default:
  5376. {
  5377. buildExpr(ctx, castParam, bound);
  5378. normalizeBoundExpr(ctx, bound);
  5379. break;
  5380. }
  5381. }
  5382. bool done = false;
  5383. switch (atc)
  5384. {
  5385. case type_string:
  5386. case type_data:
  5387. case type_qstring:
  5388. case type_unicode:
  5389. case type_utf8:
  5390. if (argType->getSize() == UNKNOWN_LENGTH)
  5391. args.append(*getBoundLength(bound));
  5392. /*
  5393. Ensure parameter is passed as non-const if the argument does not have const.
  5394. if (!curArg->hasAttribute(constAtom))//!argType->isConstantType())// && bound.queryType()->isConstantType())
  5395. bound.expr.setown(createValue(no_cast, LINK(argType), LINK(bound.expr)));
  5396. */
  5397. break;
  5398. case type_varstring:
  5399. case type_varunicode:
  5400. //MORE: pass length only if an out parameter
  5401. break;
  5402. case type_set:
  5403. {
  5404. if (newFormatSet)
  5405. {
  5406. args.append(*bound.getIsAll());
  5407. args.append(*getBoundSize(bound));
  5408. }
  5409. else
  5410. {
  5411. if (castParam->getOperator() == no_all)
  5412. throwError(HQLERR_AllPassedExternal);
  5413. args.append(*getBoundCount(bound));
  5414. }
  5415. break;
  5416. }
  5417. case type_dictionary:
  5418. case type_table:
  5419. case type_groupedtable:
  5420. {
  5421. if (isArrayRowset(argType))
  5422. args.append(*getBoundCount(bound));
  5423. else
  5424. args.append(*getBoundSize(bound));
  5425. bound.expr.setown(getPointer(bound.expr));
  5426. break;
  5427. }
  5428. case type_array:
  5429. UNIMPLEMENTED;
  5430. }
  5431. if (!done)
  5432. args.append(*bound.expr.getClear());
  5433. arg++;
  5434. }
  5435. if (arg < maxArg)
  5436. {
  5437. //MORE: Process default parameters...
  5438. PrintLog("Not enough parameters passed to function '%s'", expr->queryName()->str());
  5439. throwError1(HQLERR_TooFewParameters, expr->queryName()->str());
  5440. }
  5441. OwnedHqlExpr call = bindTranslatedFunctionCall(funcdef, args);
  5442. //either copy the integral value across, or a var string to fixed string
  5443. if (returnMustAssign)
  5444. {
  5445. ctx.addAssign(localBound.expr, call);
  5446. }
  5447. else if (resultSelfCursor)
  5448. {
  5449. OwnedHqlExpr sizeVar = ctx.getTempDeclare(unsignedType, call);
  5450. OwnedHqlExpr sizeOfExpr = createSizeof(resultSelfCursor->querySelector());
  5451. ctx.associateExpr(sizeOfExpr, sizeVar);
  5452. }
  5453. else if (returnByReference || (!tgt && !result))
  5454. {
  5455. ctx.addExpr(call);
  5456. if (translateSetReturn && tgt)
  5457. {
  5458. CHqlBoundTarget targetLength;
  5459. CHqlBoundExpr boundLength;
  5460. boundLength.expr.setown(getBoundLength(localBound));
  5461. targetLength.expr.set(tgt->length);
  5462. assign(ctx, targetLength, boundLength);
  5463. }
  5464. }
  5465. else
  5466. localBound.expr.set(call);
  5467. if (localBound.expr)
  5468. localBound.expr.setown(convertWrapperToPointer(localBound.expr));
  5469. if (tgt && !doneAssign)
  5470. assign(ctx, *tgt, localBound);
  5471. else if (result)
  5472. result->set(localBound);
  5473. //Old style row target where the row is passed in as a parameter
  5474. if (resultRow)
  5475. finalizeTempRow(ctx, resultRow, resultRowBuilder);
  5476. if (returnByReference)
  5477. ctx.associateExpr(expr, localBound);
  5478. }
  5479. void HqlCppTranslator::doBuildExprCall(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  5480. {
  5481. doBuildCall(ctx, NULL, expr, &tgt);
  5482. }
  5483. void HqlCppTranslator::doBuildAssignCall(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  5484. {
  5485. ITypeInfo * exprType = expr->queryType()->queryPromotedType();
  5486. if ((exprType->getSize() == UNKNOWN_LENGTH) && target.isFixedSize())
  5487. {
  5488. doBuildExprAssign(ctx, target, expr);
  5489. return;
  5490. }
  5491. ITypeInfo * targetType = target.queryType()->queryPromotedType();
  5492. if ((isStringType(exprType) || isUnicodeType(exprType) || isStringType(targetType) || isUnicodeType(targetType)) && exprType->getTypeCode() != targetType->getTypeCode())
  5493. {
  5494. doBuildExprAssign(ctx, target, expr);
  5495. return;
  5496. }
  5497. if ((exprType->getTypeCode() == type_set) && (queryUnqualifiedType(targetType) != queryUnqualifiedType(exprType)))
  5498. {
  5499. if (exprType->queryChildType()) // allow direct assignment of generic set functions. (e.g., internal)
  5500. {
  5501. doBuildExprAssign(ctx, target, expr);
  5502. return;
  5503. }
  5504. }
  5505. doBuildCall(ctx, &target, expr, NULL);
  5506. }
  5507. void HqlCppTranslator::doBuildStmtCall(BuildCtx & ctx, IHqlExpression * expr)
  5508. {
  5509. doBuildCall(ctx, NULL, expr, NULL);
  5510. }
  5511. //---------------------------------------------------------------------------
  5512. void HqlCppTranslator::doBuildXmlEncode(BuildCtx & ctx, const CHqlBoundTarget * tgt, IHqlExpression * expr, CHqlBoundExpr * result)
  5513. {
  5514. node_operator op = expr->getOperator();
  5515. bool isUnicode = isUnicodeType(expr->queryType());
  5516. HqlExprArray args;
  5517. IIdAtom * func;
  5518. args.append(*LINK(expr->queryChild(0)));
  5519. if (op == no_xmldecode)
  5520. func = isUnicode ? xmlDecodeUStrId : xmlDecodeStrId;
  5521. else
  5522. {
  5523. func = isUnicode ? xmlEncodeUStrId : xmlEncodeStrId;
  5524. __int64 flags = 0;
  5525. if (expr->hasAttribute(allAtom))
  5526. flags = ENCODE_WHITESPACE;
  5527. args.append(*createConstant(flags));
  5528. }
  5529. OwnedHqlExpr call = bindFunctionCall(func, args);
  5530. if (tgt)
  5531. buildExprAssign(ctx, *tgt, call);
  5532. else
  5533. buildExpr(ctx, call, *result);
  5534. }
  5535. //---------------------------------------------------------------------------
  5536. //-- no_cast --
  5537. //-- no_implicitcast --
  5538. IValue * getCastValue(ITypeInfo * cast, IHqlExpression * arg)
  5539. {
  5540. Owned<IValue> value;
  5541. switch (arg->getOperator())
  5542. {
  5543. case no_constant:
  5544. value.set(arg->queryValue());
  5545. break;
  5546. case no_cast: case no_implicitcast:
  5547. value.setown(getCastValue(arg->queryType(), arg->queryChild(0)));
  5548. break;
  5549. default:
  5550. return NULL;
  5551. }
  5552. if (!value)
  5553. return NULL;
  5554. return value->castTo(cast);
  5555. }
  5556. inline IHqlExpression * getCastExpr(ITypeInfo * cast, IHqlExpression * arg)
  5557. {
  5558. IValue * value = getCastValue(cast, arg);
  5559. if (value)
  5560. return createConstant(value);
  5561. return NULL;
  5562. }
  5563. void HqlCppTranslator::doBuildAssignCast(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  5564. {
  5565. IHqlExpression * left = expr->queryChild(0);
  5566. if (options.foldConstantCast)
  5567. {
  5568. //remove when we have constant folding installed...
  5569. OwnedHqlExpr cast = getCastExpr(expr->queryType(), left);
  5570. if (cast)
  5571. {
  5572. buildExprAssign(ctx, target, cast);
  5573. return;
  5574. }
  5575. }
  5576. #if 0
  5577. StringBuffer s;
  5578. s.append("assign cast from=");
  5579. left->queryType()->getECLType(s);
  5580. target.queryType()->getECLType(s.append(" target="));
  5581. expr->queryType()->getECLType(s.append(" expr="));
  5582. PrintLog(s.str());
  5583. #endif
  5584. ITypeInfo * targetType = target.queryType();
  5585. ITypeInfo * exprType = expr->queryType();
  5586. if ((targetType->queryPromotedType() == exprType->queryPromotedType()))
  5587. {
  5588. CHqlBoundExpr bound;
  5589. if (ctx.getMatchExpr(left, bound))
  5590. assignAndCast(ctx, target, bound);
  5591. else
  5592. {
  5593. OwnedHqlExpr values = normalizeListCasts(expr);
  5594. if (values != expr)
  5595. {
  5596. buildExprAssign(ctx, target, values);
  5597. return;
  5598. }
  5599. node_operator leftOp = left->getOperator();
  5600. bool useTemp = requiresTemp(ctx, left, false) && (leftOp != no_concat) && (leftOp != no_createset);
  5601. if (useTemp && target.isFixedSize())
  5602. {
  5603. bool ignoreStretched = false;
  5604. switch (leftOp)
  5605. {
  5606. case no_case:
  5607. case no_map:
  5608. //MORE: If the length of the bulk of the branches match then it is worth ignoring.
  5609. //would be worthwhile if isStringType(targetType) || isUnicodeType(targetType);
  5610. break;
  5611. case no_substring:
  5612. //don't do this if the target type is unicode at the moment
  5613. ignoreStretched = isStringType(targetType);
  5614. break;
  5615. }
  5616. if (ignoreStretched)
  5617. {
  5618. Owned<ITypeInfo> stretchedType = getStretchedType(targetType->getStringLen(), exprType);
  5619. if (isSameBasicType(stretchedType, targetType->queryPromotedType()))
  5620. useTemp = false;
  5621. }
  5622. }
  5623. if (useTemp)
  5624. {
  5625. buildExpr(ctx, left, bound);
  5626. assignAndCast(ctx, target, bound);
  5627. }
  5628. else
  5629. {
  5630. buildExprAssign(ctx, target, left);
  5631. }
  5632. }
  5633. return;
  5634. }
  5635. ITypeInfo * leftType = left->queryType();
  5636. if ((targetType->queryPromotedType() == left->queryType()->queryPromotedType()))
  5637. {
  5638. if (preservesValue(exprType, leftType))
  5639. {
  5640. buildExprAssign(ctx, target, left);
  5641. return;
  5642. }
  5643. }
  5644. CHqlBoundExpr pure;
  5645. bool assignDirect = false;
  5646. if ((exprType->getSize() == UNKNOWN_LENGTH) && (targetType->getTypeCode() == exprType->getTypeCode()) &&
  5647. (isStringType(exprType) || isUnicodeType(exprType)))
  5648. {
  5649. OwnedITypeInfo stretched = getStretchedType(UNKNOWN_LENGTH, targetType->queryPromotedType());
  5650. if (stretched == exprType->queryPromotedType())
  5651. assignDirect = true;
  5652. }
  5653. if (assignDirect)
  5654. buildExpr(ctx, left, pure);
  5655. else
  5656. buildExpr(ctx, expr, pure);
  5657. assignAndCast(ctx, target, pure);
  5658. }
  5659. void HqlCppTranslator::doBuildExprCast(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  5660. {
  5661. IHqlExpression * arg = expr->queryChild(0);
  5662. ITypeInfo * exprType = expr->queryType();
  5663. if (exprType->getTypeCode() == type_set)
  5664. {
  5665. OwnedHqlExpr castArg = ensureExprType(arg, exprType);
  5666. if ((castArg->getOperator() != no_cast) && (castArg->getOperator() != no_implicitcast))
  5667. {
  5668. buildExpr(ctx, castArg, tgt);
  5669. return;
  5670. }
  5671. //The case is almost certainly going to go via a temporary anyway, better code is generated if we can avoid an extra assign
  5672. buildTempExpr(ctx, expr, tgt);
  5673. return;
  5674. }
  5675. if (options.foldConstantCast)
  5676. {
  5677. //remove when we have constant folding installed...
  5678. IHqlExpression * cast = getCastExpr(exprType, arg);
  5679. if (cast)
  5680. {
  5681. tgt.expr.setown(cast);
  5682. return;
  5683. }
  5684. }
  5685. // weird special case.... (int4)(swapint4)int4_x - remove both casts...
  5686. switch (arg->getOperator())
  5687. {
  5688. case no_cast:
  5689. case no_implicitcast:
  5690. {
  5691. IHqlExpression * child = arg->queryChild(0);
  5692. if (child->queryType() == exprType)
  5693. {
  5694. if ((exprType->getTypeCode() == type_int) || (exprType->getTypeCode() == type_swapint) || (exprType->getTypeCode() == type_packedint))
  5695. {
  5696. ITypeInfo * argType = arg->queryType();
  5697. if ((argType->getTypeCode() == type_int) || (argType->getTypeCode() == type_swapint) || (argType->getTypeCode() == type_packedint))
  5698. {
  5699. if (argType->getSize() == exprType->getSize())
  5700. {
  5701. buildExpr(ctx, child, tgt);
  5702. return;
  5703. }
  5704. }
  5705. }
  5706. }
  5707. break;
  5708. }
  5709. #if 0
  5710. case no_if:
  5711. {
  5712. //optimize cast of an if where one of the arguments is already the correct type
  5713. //this doesn't really improve things
  5714. IHqlExpression * lhs = arg->queryChild(1);
  5715. IHqlExpression * rhs = arg->queryChild(2);
  5716. if (lhs->queryType() == exprType || lhs->getOperator() == no_constant ||
  5717. rhs->queryType() == exprType || rhs->getOperator() == no_constant)
  5718. {
  5719. HqlExprArray args;
  5720. args.append(*LINK(arg->queryChild(0)));
  5721. args.append(*ensureExprType(lhs, exprType));
  5722. args.append(*ensureExprType(rhs, exprType));
  5723. unwindChildren(args, arg, 3);
  5724. OwnedHqlExpr next = createValue(no_if, LINK(exprType), args);
  5725. buildExpr(ctx, next, tgt);
  5726. return;
  5727. }
  5728. break;
  5729. }
  5730. #endif
  5731. case no_substring:
  5732. {
  5733. ITypeInfo * argType = arg->queryType();
  5734. if ((exprType->getSize() != UNKNOWN_LENGTH) && (argType->getSize() == UNKNOWN_LENGTH) && (exprType->getTypeCode() == argType->getTypeCode()))
  5735. {
  5736. OwnedITypeInfo stretched = getStretchedType(exprType->getStringLen(), argType);
  5737. if (stretched == exprType)
  5738. {
  5739. buildTempExpr(ctx, expr, tgt);
  5740. return;
  5741. }
  5742. }
  5743. break;
  5744. }
  5745. }
  5746. CHqlBoundExpr pure;
  5747. buildExpr(ctx, arg, pure);
  5748. doBuildExprCast(ctx, exprType, pure, tgt);
  5749. if ((arg->queryType()->getTypeCode() == type_decimal) && !isTypePassedByAddress(exprType))
  5750. {
  5751. OwnedHqlExpr translated = tgt.getTranslatedExpr();
  5752. buildTempExpr(ctx, translated, tgt);
  5753. }
  5754. }
  5755. void HqlCppTranslator::doBuildCastViaTemp(BuildCtx & ctx, ITypeInfo * to, CHqlBoundExpr & pure, CHqlBoundExpr & tgt)
  5756. {
  5757. CHqlBoundTarget boundTarget;
  5758. Linked<ITypeInfo> targetType = to;
  5759. //If the temporary size can be deduced, then use a fixed length temporary to save a heap operation.
  5760. ITypeInfo * fromType = pure.expr->queryType();
  5761. if (isStringType(to) && to->getSize() == UNKNOWN_LENGTH && isStringType(fromType) && !pure.length)
  5762. {
  5763. assertex(fromType->getSize() != UNKNOWN_LENGTH);
  5764. targetType.setown(getStretchedType(fromType->getStringLen(), to));
  5765. }
  5766. OwnedHqlExpr translated = pure.getTranslatedExpr();
  5767. OwnedHqlExpr cast = ensureExprType(translated, targetType);
  5768. buildTempExpr(ctx, cast, tgt);
  5769. }
  5770. void HqlCppTranslator::doBuildCastViaString(BuildCtx & ctx, ITypeInfo * to, const CHqlBoundExpr & pure, CHqlBoundExpr & tgt)
  5771. {
  5772. ITypeInfo * from = pure.expr->queryType();
  5773. Owned<ITypeInfo> tempType = makeStringType(from->getStringLen(), NULL, NULL);
  5774. OwnedHqlExpr temp = createValue(no_implicitcast, LINK(to),
  5775. createValue(no_implicitcast, tempType.getLink(), pure.getTranslatedExpr()));
  5776. buildExpr(ctx, temp, tgt);
  5777. }
  5778. void HqlCppTranslator::doBuildExprCast(BuildCtx & ctx, ITypeInfo * to, CHqlBoundExpr & pure, CHqlBoundExpr & tgt)
  5779. {
  5780. ITypeInfo * from = pure.expr->queryType();
  5781. HqlExprArray args;
  5782. IIdAtom * funcName = NULL;
  5783. OwnedHqlExpr op;
  5784. switch (to->getTypeCode())
  5785. {
  5786. case type_boolean:
  5787. {
  5788. switch (from->getTypeCode())
  5789. {
  5790. case type_string:
  5791. funcName = an2bId;
  5792. args.append(*getBoundLength(pure));
  5793. args.append(*getElementPointer(pure.expr));
  5794. break;
  5795. case type_data:
  5796. funcName = data2BoolId;
  5797. args.append(*getBoundLength(pure));
  5798. args.append(*getElementPointer(pure.expr));
  5799. break;
  5800. case type_qstring:
  5801. funcName = qstr2BoolId;
  5802. args.append(*getBoundLength(pure));
  5803. args.append(*getElementPointer(pure.expr));
  5804. break;
  5805. case type_varstring:
  5806. funcName = vn2bId;
  5807. args.append(*getElementPointer(pure.expr));
  5808. break;
  5809. case type_decimal:
  5810. ensurePushed(ctx, pure);
  5811. funcName = DecCompareNullId;
  5812. break;
  5813. case type_unicode:
  5814. case type_varunicode:
  5815. case type_utf8:
  5816. doBuildCastViaString(ctx, to, pure, tgt);
  5817. return;
  5818. case type_real:
  5819. default:
  5820. //default action
  5821. break;
  5822. }
  5823. break;
  5824. }
  5825. case type_packedint:
  5826. {
  5827. ITypeInfo * logicalType = to->queryPromotedType();
  5828. size32_t toSize = logicalType->getSize();
  5829. if ((from->getTypeCode() != type_int) || (toSize != from->getSize()))
  5830. {
  5831. OwnedHqlExpr translated = pure.getTranslatedExpr();
  5832. OwnedHqlExpr castTranslated = createValue(no_implicitcast, LINK(logicalType), LINK(translated));
  5833. buildExpr(ctx, castTranslated, tgt);
  5834. return;
  5835. }
  5836. tgt.set(pure);
  5837. return;
  5838. }
  5839. case type_swapint:
  5840. {
  5841. if ((from->getTypeCode() == type_swapint) && (to->getSize() == from->getSize()))
  5842. {
  5843. break; // default behaviour
  5844. //MORE: Could special case cast between diff size swapints, but a bit too complicated.
  5845. }
  5846. if (from->getTypeCode() != type_int)
  5847. {
  5848. ITypeInfo * tempType = makeIntType(to->getSize(), to->isSigned());
  5849. IHqlExpression * translated = pure.getTranslatedExpr();
  5850. translated = createValue(no_implicitcast, tempType, translated);
  5851. OwnedHqlExpr castTranslated = createValue(no_implicitcast, LINK(to), translated);
  5852. buildExpr(ctx, castTranslated, tgt);
  5853. return;
  5854. }
  5855. unsigned toSize = to->getSize();
  5856. unsigned fromSize = from->getSize();
  5857. if ((toSize == 1) && (fromSize == 1))
  5858. {
  5859. if (to->isSigned() != from->isSigned())
  5860. break;
  5861. tgt.expr.setown(createValue(no_typetransfer, LINK(to), LINK(pure.expr)));
  5862. return;
  5863. }
  5864. if (toSize != fromSize)
  5865. {
  5866. Owned<ITypeInfo> tempType = makeIntType(toSize, from->isSigned());
  5867. CHqlBoundExpr tempInt;
  5868. tempInt.expr.setown(ensureExprType(pure.expr, tempType));
  5869. doBuildCastViaTemp(ctx, to, tempInt, tgt);
  5870. }
  5871. else
  5872. doBuildCastViaTemp(ctx, to, pure, tgt);
  5873. return;
  5874. }
  5875. case type_int:
  5876. {
  5877. switch (from->getTypeCode())
  5878. {
  5879. case type_qstring:
  5880. {
  5881. //Need to go via a temporary string.
  5882. Owned<ITypeInfo> tempType = makeStringType(from->getStringLen(), NULL, NULL);
  5883. OwnedHqlExpr temp = createValue(no_implicitcast, LINK(to),
  5884. createValue(no_implicitcast, tempType.getLink(), pure.getTranslatedExpr()));
  5885. buildExpr(ctx, temp, tgt);
  5886. return;
  5887. }
  5888. case type_string:
  5889. case type_data:
  5890. {
  5891. IAtom * charset = from->queryCharset()->queryName();
  5892. if (charset == ebcdicAtom)
  5893. {
  5894. if (to->isSigned())
  5895. funcName = (to->getSize() > 4 ? en2ls8Id : en2ls4Id);
  5896. else
  5897. funcName = (to->getSize() > 4 ? en2l8Id : en2l4Id);
  5898. }
  5899. else if ((charset == asciiAtom) || (charset == dataAtom))
  5900. {
  5901. if (to->isSigned())
  5902. funcName = (to->getSize() > 4 ? an2ls8Id : an2ls4Id);
  5903. else
  5904. funcName = (to->getSize() > 4 ? an2l8Id : an2l4Id);
  5905. }
  5906. else
  5907. assertex(!"Unknown character set");
  5908. //MORE: This should really cast the result to the real width to remove extra bytes.
  5909. //e.g. (unsigned3)-1 should be 0xffffff, not 0xffffffff
  5910. args.append(*getBoundLength(pure));
  5911. args.append(*getElementPointer(pure.expr));
  5912. break;
  5913. }
  5914. case type_varstring:
  5915. if (to->isSigned())
  5916. funcName = (to->getSize() > 4 ? vn2ls8Id : vn2ls4Id);
  5917. else
  5918. funcName = (to->getSize() > 4 ? vn2l8Id : vn2l4Id);
  5919. args.append(*getElementPointer(pure.expr));
  5920. break;
  5921. case type_decimal:
  5922. ensurePushed(ctx, pure);
  5923. if (to->getSize() > 4)
  5924. funcName = DecPopInt64Id;
  5925. else
  5926. funcName = DecPopLongId;
  5927. break;
  5928. case type_packedint:
  5929. {
  5930. if (to->getSize() < from->getSize())
  5931. {
  5932. funcName = castIntId[to->getSize()][to->isSigned()];
  5933. args.append(*LINK(pure.expr));
  5934. }
  5935. else
  5936. tgt.set(pure);
  5937. break;
  5938. }
  5939. case type_swapint:
  5940. {
  5941. unsigned toSize = to->getSize();
  5942. unsigned fromSize = from->getSize();
  5943. if ((toSize == 1) && (fromSize == 1))
  5944. {
  5945. if (to->isSigned() != from->isSigned())
  5946. break;
  5947. tgt.expr.setown(createValue(no_typetransfer, LINK(to), LINK(pure.expr)));
  5948. return;
  5949. }
  5950. if (toSize != fromSize)
  5951. {
  5952. Owned<ITypeInfo> tempType = makeIntType(fromSize, from->isSigned());
  5953. CHqlBoundExpr tempInt;
  5954. doBuildCastViaTemp(ctx, tempType, pure, tempInt);
  5955. funcName = castIntId[to->getSize()][to->isSigned()];
  5956. if (funcName && toSize < fromSize)
  5957. {
  5958. args.append(*LINK(tempInt.expr));
  5959. tgt.expr.setown(bindTranslatedFunctionCall(funcName, args));
  5960. }
  5961. else
  5962. tgt.expr.setown(ensureExprType(tempInt.expr, to));
  5963. }
  5964. else
  5965. doBuildCastViaTemp(ctx, to, pure, tgt);
  5966. return;
  5967. }
  5968. case type_int:
  5969. if (to->getSize() < from->getSize())
  5970. {
  5971. IIdAtom * name = castIntId[to->getSize()][to->isSigned()];
  5972. if (name)
  5973. {
  5974. args.append(*LINK(pure.expr));
  5975. IHqlExpression * call = bindTranslatedFunctionCall(name, args);
  5976. op.setown(createValue(no_typetransfer, LINK(to), call));
  5977. }
  5978. }
  5979. break;
  5980. case type_unicode:
  5981. case type_varunicode:
  5982. case type_utf8:
  5983. doBuildCastViaString(ctx, to, pure, tgt);
  5984. return;
  5985. case type_real:
  5986. default:
  5987. //default action
  5988. break;
  5989. }
  5990. break;
  5991. }
  5992. case type_real:
  5993. switch (from->getTypeCode())
  5994. {
  5995. case type_qstring:
  5996. case type_unicode:
  5997. case type_varunicode:
  5998. case type_utf8:
  5999. doBuildCastViaString(ctx, to, pure, tgt);
  6000. return;
  6001. case type_data:
  6002. case type_string:
  6003. funcName = from->queryCharset()->queryName() != ebcdicAtom ? an2fId : en2fId;
  6004. args.append(*getBoundLength(pure));
  6005. args.append(*getElementPointer(pure.expr));
  6006. break;
  6007. case type_varstring:
  6008. funcName = from->queryCharset()->queryName() != ebcdicAtom ? vn2fId : ex2fId;
  6009. args.append(*getElementPointer(pure.expr));
  6010. break;
  6011. case type_decimal:
  6012. ensurePushed(ctx, pure);
  6013. funcName = DecPopRealId;
  6014. break;
  6015. case type_swapint:
  6016. {
  6017. //cast via intermediate int.
  6018. ITypeInfo * type = makeIntType(from->getSize(), from->isSigned());
  6019. IHqlExpression * translated = pure.getTranslatedExpr();
  6020. OwnedHqlExpr castTranslated = createValue(no_implicitcast, type, translated);
  6021. pure.clear();
  6022. buildExpr(ctx, castTranslated, pure);
  6023. from = type;
  6024. }
  6025. //fallthrough
  6026. case type_int:
  6027. case type_boolean:
  6028. case type_packedint:
  6029. default:
  6030. //default action
  6031. break;
  6032. }
  6033. break;
  6034. case type_decimal:
  6035. {
  6036. ensurePushed(ctx, pure);
  6037. bool needToSetPrecision = true;
  6038. unsigned toDigits = to->getDigits();
  6039. unsigned toPrecision = to->getPrecision();
  6040. switch (from->getTypeCode())
  6041. {
  6042. case type_int:
  6043. case type_swapint:
  6044. if (toDigits >= from->getDigits())
  6045. needToSetPrecision = false;
  6046. break;
  6047. case type_decimal:
  6048. {
  6049. unsigned fromDigits = from->getDigits();
  6050. unsigned fromPrecision = from->getPrecision();
  6051. if (((toDigits - toPrecision) >= (fromDigits - fromPrecision)) &&
  6052. (toPrecision >= fromPrecision))
  6053. needToSetPrecision = false;
  6054. break;
  6055. }
  6056. }
  6057. if ((toDigits == MAX_DECIMAL_DIGITS) && (toPrecision == MAX_DECIMAL_PRECISION))
  6058. needToSetPrecision = false;
  6059. if (needToSetPrecision)
  6060. {
  6061. args.append(*createConstant(createIntValue(to->getDigits(), 1, false)));
  6062. args.append(*createConstant(createIntValue(to->getPrecision(), 1, false)));
  6063. callProcedure(ctx, DecSetPrecisionId, args);
  6064. }
  6065. op.setown(createValue(no_decimalstack, LINK(to)));
  6066. }
  6067. break;
  6068. case type_set:
  6069. {
  6070. //MORE: Shouldn't have to create this node...
  6071. OwnedHqlExpr cast = createValue(no_implicitcast, LINK(to), pure.getTranslatedExpr());
  6072. buildTempExpr(ctx, cast, tgt);
  6073. return;
  6074. }
  6075. case type_pointer:
  6076. case type_row:
  6077. break;
  6078. case type_varstring:
  6079. if ((to->getSize() == UNKNOWN_LENGTH) && (from->getTypeCode() == type_varstring))
  6080. tgt.set(pure);
  6081. else
  6082. doBuildCastViaTemp(ctx, to, pure, tgt);
  6083. return;
  6084. case type_string:
  6085. case type_data:
  6086. {
  6087. if (canRemoveStringCast(to, from))
  6088. {
  6089. ICharsetInfo * srcset = from->queryCharset();
  6090. ICharsetInfo * tgtset = to->queryCharset();
  6091. //Data never calls a conversion function... but does add a cast
  6092. if ((srcset == tgtset) || (to->getTypeCode() == type_data) || (from->getTypeCode() == type_data))
  6093. {
  6094. if (from->getTypeCode() == type_varstring)
  6095. tgt.length.setown(getBoundLength(pure));
  6096. else
  6097. tgt.length.set(pure.length);
  6098. Owned<ITypeInfo> newType;
  6099. if (to->getSize() == UNKNOWN_LENGTH)
  6100. newType.setown(getStretchedType(from->getSize(), to));
  6101. else
  6102. newType.set(to);
  6103. if (from->getTypeCode() != type_data)
  6104. {
  6105. newType.setown(cloneModifiers(from, newType));
  6106. tgt.expr.setown(createValue(no_typetransfer, newType.getClear(), pure.expr.getLink()));
  6107. }
  6108. else
  6109. {
  6110. IHqlExpression * base = queryStripCasts(pure.expr);
  6111. newType.setown(makeReferenceModifier(newType.getClear()));
  6112. tgt.expr.setown(createValue(no_cast, newType.getClear(), LINK(base)));
  6113. }
  6114. return;
  6115. }
  6116. }
  6117. }
  6118. doBuildCastViaTemp(ctx, to, pure, tgt);
  6119. return;
  6120. case type_unicode:
  6121. case type_varunicode:
  6122. if ((from->getTypeCode() == to->getTypeCode()) && (to->getSize() == UNKNOWN_LENGTH))
  6123. {
  6124. tgt.set(pure);
  6125. return;
  6126. }
  6127. doBuildCastViaTemp(ctx, to, pure, tgt);
  6128. return;
  6129. default:
  6130. doBuildCastViaTemp(ctx, to, pure, tgt);
  6131. return;
  6132. }
  6133. if (funcName)
  6134. op.setown(bindTranslatedFunctionCall(funcName, args));
  6135. if (!op)
  6136. op.setown(ensureExprType(pure.expr, to));
  6137. if (queryUnqualifiedType(op->queryType()) != queryUnqualifiedType(to))
  6138. {
  6139. OwnedHqlExpr translated = createTranslated(op);
  6140. OwnedHqlExpr cast = ensureExprType(translated, to);
  6141. buildExpr(ctx, cast, tgt);
  6142. }
  6143. else
  6144. tgt.expr.setown(op.getClear());
  6145. }
  6146. //---------------------------------------------------------------------------
  6147. //-- no_char_length --
  6148. //NB: parameter is expression to take length of - not the length node.
  6149. IHqlExpression * HqlCppTranslator::doBuildCharLength(BuildCtx & ctx, IHqlExpression * expr)
  6150. {
  6151. CHqlBoundExpr bound;
  6152. buildCachedExpr(ctx, expr, bound);
  6153. return getBoundLength(bound);
  6154. }
  6155. //---------------------------------------------------------------------------
  6156. //-- no_choose
  6157. void HqlCppTranslator::doBuildChoose(BuildCtx & ctx, const CHqlBoundTarget * target, IHqlExpression * expr)
  6158. {
  6159. CHqlBoundExpr test;
  6160. BuildCtx subctx(ctx);
  6161. buildExpr(subctx, expr->queryChild(0), test);
  6162. IHqlStmt * stmt = subctx.addSwitch(test.expr);
  6163. unsigned max = expr->numChildren()-1;
  6164. unsigned idx;
  6165. for (idx = 1; idx < max; idx++)
  6166. {
  6167. OwnedHqlExpr branch = getSizetConstant(idx);
  6168. subctx.addCase(stmt, branch);
  6169. buildExprOrAssign(subctx, target, expr->queryChild(idx), NULL);
  6170. }
  6171. IHqlExpression * defaultExpr = expr->queryChild(max);
  6172. if (target || !isNullAction(defaultExpr))
  6173. {
  6174. subctx.addDefault(stmt);
  6175. buildExprOrAssign(subctx, target, defaultExpr, NULL);
  6176. }
  6177. }
  6178. void HqlCppTranslator::doBuildAssignChoose(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  6179. {
  6180. unsigned max = expr->numChildren()-1;
  6181. unsigned idx;
  6182. bool allConstant = true;
  6183. for (idx = 1; idx < max; idx++)
  6184. {
  6185. if (!expr->queryChild(idx)->queryValue())
  6186. allConstant = false;
  6187. }
  6188. if (allConstant)
  6189. {
  6190. //MORE: Need to calculate the correct type.
  6191. HqlExprArray args;
  6192. args.append(*LINK(expr->queryChild(0)));
  6193. for (idx = 1; idx < max; idx++)
  6194. {
  6195. IHqlExpression * v1 = createConstant(createIntValue(idx, LINK(unsignedType)));
  6196. IHqlExpression * v2 = expr->queryChild(idx);
  6197. ITypeInfo * type = v2->queryType();
  6198. args.append(* createValue(no_mapto, LINK(type), v1, LINK(v2)));
  6199. }
  6200. args.append(*LINK(expr->queryChild(max)));
  6201. OwnedHqlExpr caseExpr = createValue(no_case, expr->getType(), args);
  6202. buildExprAssign(ctx, target, caseExpr);
  6203. }
  6204. else
  6205. {
  6206. doBuildChoose(ctx, &target, expr);
  6207. }
  6208. }
  6209. //---------------------------------------------------------------------------
  6210. //-- compare (no_eq,no_ne,no_lt,no_gt,no_le,no_ge) --
  6211. //Are the arguments scalar? If so return the scalar arguments.
  6212. static bool getIsScalarCompare(IHqlExpression * expr, SharedHqlExpr & left, SharedHqlExpr & right)
  6213. {
  6214. left.set(expr->queryChild(0));
  6215. right.set(expr->queryChild(1));
  6216. ITypeInfo * lType = left->queryType();
  6217. ITypeInfo * rType = right->queryType();
  6218. type_t leftTypeCode = lType ? lType->getTypeCode() : type_row;
  6219. type_t rightTypeCode = rType ? rType->getTypeCode() : type_row;
  6220. assertex(leftTypeCode == rightTypeCode);
  6221. switch (leftTypeCode)
  6222. {
  6223. case type_row:
  6224. case type_set:
  6225. return false;
  6226. default:
  6227. return true;
  6228. }
  6229. }
  6230. void HqlCppTranslator::doBuildAssignCompare(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  6231. {
  6232. OwnedHqlExpr left;
  6233. OwnedHqlExpr right;
  6234. if (getIsScalarCompare(expr, left, right))
  6235. {
  6236. doBuildExprAssign(ctx, target, expr);
  6237. return;
  6238. }
  6239. //Comparing a row - calculate the ordering and then compare against zero...
  6240. IHqlExpression * compare = createValue(no_order, LINK(signedType), LINK(left), LINK(right));
  6241. OwnedHqlExpr temp = createBoolExpr(expr->getOperator(), compare, getZero());
  6242. buildExprAssign(ctx, target, temp);
  6243. }
  6244. //---------------------------------------------------------------------------
  6245. //-- no_concat --
  6246. void HqlCppTranslator::buildConcatFArgs(HqlExprArray & args, BuildCtx & ctx, const HqlExprArray & values, ITypeInfo * argType)
  6247. {
  6248. ForEachItemIn(idx, values)
  6249. {
  6250. IHqlExpression * cur = &values.item(idx);
  6251. OwnedHqlExpr value = getCastParameter(cur, argType);
  6252. CHqlBoundExpr bound;
  6253. buildCachedExpr(ctx, value, bound);
  6254. //The function takes ... so the length must be 4 bytes or the stack
  6255. //gets out of sync...
  6256. OwnedHqlExpr length = getBoundLength(bound);
  6257. args.append(*ensureExprType(length, unsignedType));
  6258. args.append(*getElementPointer(bound.expr));
  6259. }
  6260. args.append(*createConstant(signedType->castFrom(true, -1))); // correct size terminator
  6261. }
  6262. void HqlCppTranslator::doBuildVarLengthConcatF(BuildCtx & ctx, const CHqlBoundTarget & target, const HqlExprArray & values)
  6263. {
  6264. ITypeInfo * targetType = target.queryType();
  6265. Linked<ITypeInfo> argType = targetType;
  6266. type_t ttc = targetType->getTypeCode();
  6267. HqlExprArray args;
  6268. IIdAtom * func;
  6269. if (ttc == type_varstring)
  6270. {
  6271. func = concatVStrId;
  6272. argType.setown(makeStringType(UNKNOWN_LENGTH, LINK(targetType->queryCharset()), LINK(targetType->queryCollation())));
  6273. }
  6274. else if (ttc == type_unicode)
  6275. {
  6276. args.append(*target.length.getLink());
  6277. func = concatUnicodeId;
  6278. }
  6279. else if (ttc == type_utf8)
  6280. {
  6281. args.append(*target.length.getLink());
  6282. func = concatUtf8Id;
  6283. }
  6284. else if (ttc == type_varunicode)
  6285. {
  6286. func = concatVUnicodeId;
  6287. argType.setown(makeUnicodeType(UNKNOWN_LENGTH, targetType->queryLocale()));
  6288. }
  6289. else
  6290. {
  6291. args.append(*target.length.getLink());
  6292. func = concatId;
  6293. }
  6294. IHqlExpression * tgt = createValue(no_address, makeVoidType(), LINK(target.expr));
  6295. if (ttc == type_data)
  6296. tgt = createValue(no_implicitcast, makePointerType(makeStringType(UNKNOWN_LENGTH, NULL, NULL)), tgt);
  6297. args.append(*tgt);
  6298. buildConcatFArgs(args, ctx, values, argType);
  6299. callProcedure(ctx, func, args);
  6300. }
  6301. bool HqlCppTranslator::doBuildFixedLengthConcatF(BuildCtx & ctx, const CHqlBoundTarget & target, const HqlExprArray & values)
  6302. {
  6303. ITypeInfo * targetType = target.queryType();
  6304. Owned<ITypeInfo> argType = getStretchedType(UNKNOWN_LENGTH, targetType);
  6305. type_t ttc = targetType->getTypeCode();
  6306. HqlExprArray args;
  6307. IIdAtom * func = NULL;
  6308. OwnedHqlExpr fill;
  6309. switch (ttc)
  6310. {
  6311. case type_varstring:
  6312. func = concatVStrFId;
  6313. argType.setown(makeStringType(UNKNOWN_LENGTH, LINK(targetType->queryCharset()), LINK(targetType->queryCollation())));
  6314. break;
  6315. case type_varunicode:
  6316. func = concatVUnicodeFId;
  6317. argType.setown(makeUnicodeType(UNKNOWN_LENGTH, targetType->queryLocale()));
  6318. break;
  6319. case type_unicode:
  6320. func = concatUnicodeFId;
  6321. break;
  6322. case type_string:
  6323. func = concatStrFId;
  6324. if (targetType->queryCharset()->queryName() == ebcdicAtom)
  6325. fill.setown(getSizetConstant('@'));
  6326. else
  6327. fill.setown(getSizetConstant(' '));
  6328. break;
  6329. case type_data:
  6330. func = concatStrFId;
  6331. fill.setown(getSizetConstant(0));
  6332. break;
  6333. }
  6334. if (func)
  6335. {
  6336. args.append(*getSizetConstant(targetType->getStringLen()));
  6337. args.append(*getPointer(target.expr));
  6338. if (fill)
  6339. args.append(*LINK(fill));
  6340. buildConcatFArgs(args, ctx, values, argType);
  6341. callProcedure(ctx, func, args);
  6342. return true;
  6343. }
  6344. return false;
  6345. }
  6346. void HqlCppTranslator::doBuildAssignConcat(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  6347. {
  6348. ITypeInfo * targetType = target.queryType();
  6349. ICharsetInfo * targetCharset = targetType->queryCharset();
  6350. type_t ttc = targetType->getTypeCode();
  6351. switch (ttc)
  6352. {
  6353. case type_unicode:
  6354. case type_varunicode:
  6355. case type_utf8:
  6356. break;
  6357. case type_string:
  6358. case type_varstring:
  6359. case type_data:
  6360. if (!queryDefaultTranslation(targetCharset, expr->queryType()->queryCharset()))
  6361. break;
  6362. //fallthrough
  6363. default:
  6364. doBuildExprAssign(ctx, target, expr);
  6365. return;
  6366. }
  6367. HqlExprArray values;
  6368. expr->unwindList(values, no_concat);
  6369. //Combine adjacent constants (not folded previously because of the tree structure)
  6370. //Not optimized in the folder since it can mess up cse evaluation
  6371. for (unsigned i=0; i < values.ordinality()-1; i++)
  6372. {
  6373. IValue * firstValue = values.item(i).queryValue();
  6374. if (firstValue)
  6375. {
  6376. Linked<IValue> combinedValue = firstValue;
  6377. while (i+1 < values.ordinality())
  6378. {
  6379. IValue * nextValue = values.item(i+1).queryValue();
  6380. if (!nextValue)
  6381. break;
  6382. combinedValue.setown(concatValues(combinedValue, nextValue));
  6383. values.remove(i+1);
  6384. }
  6385. if (combinedValue->queryType()->getStringLen() == 0)
  6386. {
  6387. values.remove(i);
  6388. i--; // not nice, but will be incremented before comparison so safe
  6389. }
  6390. else if (combinedValue != firstValue)
  6391. values.replace(*createConstant(combinedValue.getClear()), i);
  6392. }
  6393. }
  6394. if (!target.isFixedSize())
  6395. {
  6396. doBuildVarLengthConcatF(ctx, target, values);
  6397. }
  6398. else if (!doBuildFixedLengthConcatF(ctx, target, values))
  6399. {
  6400. Owned<ITypeInfo> varType = getStretchedType(UNKNOWN_LENGTH, targetType);
  6401. OwnedHqlExpr castValue = createValue(no_concat, LINK(varType), values);
  6402. doBuildExprAssign(ctx, target, castValue);
  6403. }
  6404. }
  6405. //---------------------------------------------------------------------------
  6406. //-- no_div --
  6407. // also used for no_modulus
  6408. void HqlCppTranslator::doBuildExprDivide(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  6409. {
  6410. if (expr->queryType()->getTypeCode() == type_decimal)
  6411. {
  6412. doBuildExprArith(ctx, expr, tgt);
  6413. return;
  6414. }
  6415. IHqlExpression * left = expr->queryChild(0);
  6416. IHqlExpression * right = expr->queryChild(1);
  6417. assertex(left->queryType() == right->queryType());
  6418. IValue * value = right->queryValue();
  6419. if (value)
  6420. {
  6421. Owned<IValue> zero = right->queryType()->castFrom(false, 0);
  6422. int cmp = value->compare(zero);
  6423. if (cmp == 0)
  6424. {
  6425. OwnedHqlExpr eZero = createConstant(LINK(zero));
  6426. doBuildDivideByZero(ctx, NULL, eZero, &tgt);
  6427. }
  6428. else
  6429. doBuildPureSubExpr(ctx, expr, tgt);
  6430. }
  6431. else
  6432. {
  6433. buildTempExpr(ctx, expr, tgt);
  6434. }
  6435. }
  6436. void HqlCppTranslator::doBuildDivideByZero(BuildCtx & ctx, const CHqlBoundTarget * target, IHqlExpression * zero, CHqlBoundExpr * bound)
  6437. {
  6438. //Always assign something to bound - even if it is replaced further down.
  6439. if (bound)
  6440. buildExpr(ctx, zero, *bound);
  6441. switch (options.divideByZeroAction)
  6442. {
  6443. case DBZzero:
  6444. if (target)
  6445. assignBound(ctx, *target, zero);
  6446. break;
  6447. case DBZfail:
  6448. {
  6449. HqlExprArray noArgs;
  6450. buildFunctionCall(ctx, failDivideByZeroId, noArgs);
  6451. break;
  6452. }
  6453. case DBZnan:
  6454. {
  6455. LinkedHqlExpr nan = zero;
  6456. if (zero->queryType()->getTypeCode() == type_real)
  6457. {
  6458. HqlExprArray noArgs;
  6459. nan.setown(bindFunctionCall(createRealNullId, noArgs));
  6460. }
  6461. if (target)
  6462. assignBound(ctx, *target, nan);
  6463. else
  6464. buildExpr(ctx, nan, *bound);
  6465. break;
  6466. }
  6467. default:
  6468. throwUnexpected();
  6469. }
  6470. }
  6471. void HqlCppTranslator::doBuildAssignDivide(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  6472. {
  6473. if (expr->queryType()->getTypeCode() == type_decimal)
  6474. {
  6475. doBuildExprAssign(ctx, target, expr);
  6476. return;
  6477. }
  6478. IHqlExpression * left = expr->queryChild(0);
  6479. IHqlExpression * right = expr->queryChild(1);
  6480. assertex(left->queryType() == right->queryType());
  6481. CHqlBoundExpr lhs,rhs;
  6482. buildExpr(ctx, left, lhs);
  6483. buildSimpleExpr(ctx, right, rhs);
  6484. IHqlExpression * divisor = rhs.expr.get();
  6485. OwnedHqlExpr pureExpr = createValue(expr->getOperator(), left->getType(), lhs.expr.getClear(), LINK(divisor));
  6486. IValue * zero = pureExpr->queryType()->castFrom(false, 0);
  6487. OwnedHqlExpr eZero = createConstant(zero);
  6488. IValue * value = rhs.expr->queryValue();
  6489. if (value)
  6490. {
  6491. int cmp = value->compare(eZero->queryValue());
  6492. if (cmp == 0)
  6493. doBuildDivideByZero(ctx, &target, eZero, NULL);
  6494. else
  6495. assignBound(ctx, target, pureExpr);
  6496. }
  6497. else
  6498. {
  6499. BuildCtx subctx(ctx);
  6500. IHqlStmt * stmt = subctx.addFilter(divisor);
  6501. assignBound(subctx, target, pureExpr);
  6502. subctx.selectElse(stmt);
  6503. doBuildDivideByZero(subctx, &target, eZero, NULL);
  6504. }
  6505. }
  6506. //---------------------------------------------------------------------------
  6507. //-- no_if --
  6508. bool HqlCppTranslator::ifRequiresAssignment(BuildCtx & ctx, IHqlExpression * expr)
  6509. {
  6510. IHqlExpression * trueExpr = expr->queryChild(1);
  6511. IHqlExpression * falseExpr = expr->queryChild(2);
  6512. if (requiresTemp(ctx, trueExpr, true) || requiresTemp(ctx, falseExpr, true) || expr->queryType()->getSize() == UNKNOWN_LENGTH)
  6513. return true;
  6514. if (trueExpr->queryType() != falseExpr->queryType() && isStringType(expr->queryType()))
  6515. return true;
  6516. if (expr->queryType()->getTypeCode() == type_decimal)
  6517. return true;
  6518. return false;
  6519. }
  6520. void HqlCppTranslator::doBuildAssignIf(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  6521. {
  6522. if (!ifRequiresAssignment(ctx, expr))
  6523. {
  6524. doBuildExprAssign(ctx, target, expr);
  6525. return;
  6526. }
  6527. IHqlExpression * trueExpr = expr->queryChild(1);
  6528. IHqlExpression * falseExpr = expr->queryChild(2);
  6529. BuildCtx subctx(ctx);
  6530. CHqlBoundExpr cond;
  6531. buildCachedExpr(subctx, expr->queryChild(0), cond);
  6532. IHqlStmt * test = subctx.addFilter(cond.expr);
  6533. buildExprAssign(subctx, target, trueExpr);
  6534. subctx.selectElse(test);
  6535. buildExprAssign(subctx, target, falseExpr);
  6536. }
  6537. void HqlCppTranslator::doBuildExprIf(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  6538. {
  6539. if (ifRequiresAssignment(ctx, expr))
  6540. {
  6541. buildTempExpr(ctx, expr, tgt);
  6542. return;
  6543. }
  6544. IHqlExpression * trueExpr = expr->queryChild(1);
  6545. IHqlExpression * falseExpr = expr->queryChild(2);
  6546. //Length should not be conditional...
  6547. CHqlBoundExpr cond;
  6548. CHqlBoundExpr boundTrue;
  6549. CHqlBoundExpr boundFalse;
  6550. buildCachedExpr(ctx, expr->queryChild(0), cond);
  6551. buildCachedExpr(ctx, trueExpr, boundTrue);
  6552. buildCachedExpr(ctx, falseExpr, boundFalse);
  6553. //true and false should have same type...
  6554. tgt.expr.setown(createValue(no_if, expr->getType(), cond.expr.getClear(), boundTrue.expr.getClear(), boundFalse.expr.getClear()));
  6555. }
  6556. void HqlCppTranslator::doBuildStmtIf(BuildCtx & ctx, IHqlExpression * expr)
  6557. {
  6558. BuildCtx subctx(ctx);
  6559. CHqlBoundExpr cond;
  6560. buildCachedExpr(subctx, expr->queryChild(0), cond);
  6561. IHqlStmt * test = subctx.addFilter(cond.expr);
  6562. optimizeBuildActionList(subctx, expr->queryChild(1));
  6563. IHqlExpression * elseExpr = queryRealChild(expr, 2);
  6564. if (elseExpr && elseExpr->getOperator() != no_null)
  6565. {
  6566. subctx.selectElse(test);
  6567. optimizeBuildActionList(subctx, elseExpr);
  6568. }
  6569. }
  6570. //---------------------------------------------------------------------------
  6571. //-- no_intformat --
  6572. IHqlExpression * HqlCppTranslator::createFormatCall(IIdAtom * func, IHqlExpression * expr)
  6573. {
  6574. HqlExprArray args;
  6575. unsigned max = expr->numChildren();
  6576. unsigned idx;
  6577. for (idx=0; idx < max; idx++)
  6578. {
  6579. IHqlExpression * cur = expr->queryChild(idx);;
  6580. args.append(*LINK(cur));
  6581. }
  6582. return bindFunctionCall(func, args);
  6583. }
  6584. void HqlCppTranslator::doBuildExprFormat(IIdAtom * func, BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  6585. {
  6586. OwnedHqlExpr call = createFormatCall(func, expr);
  6587. buildExpr(ctx, call, tgt);
  6588. }
  6589. void HqlCppTranslator::doBuildAssignFormat(IIdAtom * func, BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  6590. {
  6591. OwnedHqlExpr call = createFormatCall(func, expr);
  6592. buildExprAssign(ctx, target, call);
  6593. }
  6594. //---------------------------------------------------------------------------
  6595. void HqlCppTranslator::doBuildAssignToXml(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  6596. {
  6597. IHqlExpression * row = expr->queryChild(0);
  6598. HqlExprArray args;
  6599. args.append(*buildMetaParameter(row));
  6600. args.append(*LINK(row));
  6601. args.append(*getSizetConstant(XWFtrim|XWFopt|XWFnoindent));
  6602. OwnedHqlExpr call = bindFunctionCall(ctxGetRowXmlId, args);
  6603. buildExprAssign(ctx, target, call);
  6604. }
  6605. //---------------------------------------------------------------------------
  6606. void HqlCppTranslator::processCppBodyDirectives(IHqlExpression * expr)
  6607. {
  6608. ForEachChild(i, expr)
  6609. {
  6610. IHqlExpression * cur = expr->queryChild(i);
  6611. if (cur->isAttribute())
  6612. {
  6613. IAtom * name = cur->queryName();
  6614. if (name == linkAtom)
  6615. {
  6616. //MORE: Add code to add the argument to the linker options.
  6617. }
  6618. else if (name == libraryAtom)
  6619. {
  6620. StringBuffer libraryName;
  6621. getStringValue(libraryName, cur->queryChild(0));
  6622. if (libraryName.length())
  6623. useLibrary(libraryName.str());
  6624. }
  6625. }
  6626. }
  6627. }
  6628. void HqlCppTranslator::doBuildExprEmbedBody(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr * tgt)
  6629. {
  6630. if (!allowEmbeddedCpp())
  6631. throwError(HQLERR_EmbeddedCppNotAllowed);
  6632. processCppBodyDirectives(expr);
  6633. IHqlExpression *languageAttr = expr->queryAttribute(languageAtom);
  6634. if (languageAttr)
  6635. {
  6636. UNIMPLEMENTED; // It's not clear if this can ever happen - perhaps a parameterless function that used EMBED ?
  6637. }
  6638. StringBuffer text;
  6639. expr->queryChild(0)->queryValue()->getUTF8Value(text);
  6640. text.setLength(cleanupEmbeddedCpp(text.length(), (char*)text.str()));
  6641. OwnedHqlExpr quoted = createQuoted(text.str(), expr->getType());
  6642. if (tgt)
  6643. {
  6644. ITypeInfo * type = expr->queryType();
  6645. assertex(type->getTypeCode() == type_varstring || type->getSize() != UNKNOWN_LENGTH);
  6646. tgt->expr.set(quoted);
  6647. }
  6648. else
  6649. ctx.addExpr(quoted);
  6650. }
  6651. //---------------------------------------------------------------------------
  6652. //-- no_index --
  6653. IHqlExpression * getSimpleListIndex(BuildCtx & ctx, IHqlExpression * expr)
  6654. {
  6655. IHqlExpression * index = expr->queryChild(1);
  6656. if (!index->isConstant())
  6657. return NULL;
  6658. OwnedHqlExpr set = normalizeListCasts(expr->queryChild(0));
  6659. switch (set->getOperator())
  6660. {
  6661. case no_null:
  6662. case no_list:
  6663. break;
  6664. default:
  6665. return NULL;
  6666. }
  6667. OwnedHqlExpr folded = foldHqlExpression(index);
  6668. __int64 which = folded->queryValue()->getIntValue();
  6669. if ((which > 0) && (which <= set->numChildren()))
  6670. return LINK(set->queryChild((unsigned)which-1));
  6671. return createNullExpr(expr);
  6672. }
  6673. void HqlCppTranslator::doBuildExprIndex(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  6674. {
  6675. OwnedHqlExpr simple = getSimpleListIndex(ctx, expr);
  6676. if (simple)
  6677. buildExpr(ctx, simple, tgt);
  6678. else
  6679. {
  6680. OwnedHqlExpr simpleList = simplifyFixedLengthList(expr->queryChild(0));
  6681. Owned<IHqlCppSetCursor> cursor = createSetSelector(ctx, simpleList);
  6682. cursor->buildExprSelect(ctx, expr, tgt);
  6683. }
  6684. }
  6685. void HqlCppTranslator::doBuildAssignIndex(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  6686. {
  6687. OwnedHqlExpr simple = getSimpleListIndex(ctx, expr);
  6688. if (simple)
  6689. buildExprAssign(ctx, target, simple);
  6690. else
  6691. {
  6692. OwnedHqlExpr simpleList = simplifyFixedLengthList(expr->queryChild(0));
  6693. Owned<IHqlCppSetCursor> cursor = createSetSelector(ctx, simpleList);
  6694. cursor->buildAssignSelect(ctx, target, expr);
  6695. }
  6696. }
  6697. //---------------------------------------------------------------------------
  6698. //-- no_list --
  6699. bool isComplexSet(ITypeInfo * type, bool isConstant)
  6700. {
  6701. ITypeInfo * childType = type->queryChildType();
  6702. if (!childType)
  6703. return false;
  6704. switch (childType->getTypeCode())
  6705. {
  6706. case type_alien:
  6707. return true;
  6708. case type_string:
  6709. case type_qstring:
  6710. case type_data:
  6711. case type_unicode:
  6712. case type_varstring:
  6713. case type_varunicode:
  6714. return isUnknownSize(childType) && !isConstant;
  6715. case type_utf8:
  6716. case type_swapint:
  6717. case type_packedint:
  6718. return true;
  6719. case type_int:
  6720. switch (childType->getSize())
  6721. {
  6722. case 3: case 5: case 6: case 7:
  6723. return true;
  6724. }
  6725. return false;
  6726. }
  6727. return false;
  6728. }
  6729. bool isComplexSet(IHqlExpression * expr)
  6730. {
  6731. return isComplexSet(expr->queryType(), isConstantSet(expr));
  6732. }
  6733. bool isConstantSet(IHqlExpression * expr)
  6734. {
  6735. unsigned max = expr->numChildren();
  6736. unsigned idx;
  6737. for (idx = 0; idx < max; idx++)
  6738. {
  6739. IHqlExpression * child = expr->queryChild(idx);
  6740. if (!child->queryValue())
  6741. return false;
  6742. }
  6743. return true;
  6744. }
  6745. bool createUnknownLengthStringSet(MemoryBuffer & target, IHqlExpression * set)
  6746. {
  6747. ITypeInfo * elemType = set->queryType()->queryChildType();
  6748. type_t tc = elemType->getTypeCode();
  6749. ForEachChild(i, set)
  6750. {
  6751. IHqlExpression * cur = set->queryChild(i);
  6752. IValue * curValue = cur->queryValue();
  6753. if (!curValue)
  6754. return false;
  6755. size32_t sizeValue = curValue->getSize();
  6756. if ((tc != type_varstring) && (tc != type_varunicode))
  6757. {
  6758. size32_t lenValue = curValue->queryType()->getStringLen();
  6759. rtlWriteInt4(target.reserve(sizeof(size32_t)), lenValue);
  6760. }
  6761. curValue->toMem(target.reserve(sizeValue));
  6762. }
  6763. return true;
  6764. }
  6765. void HqlCppTranslator::doBuildExprConstList(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  6766. {
  6767. BuildCtx declareCtx(*code, literalAtom);
  6768. if (!declareCtx.getMatchExpr(expr, tgt))
  6769. {
  6770. ITypeInfo * type = expr->queryType();
  6771. Linked<ITypeInfo> elementType = type->queryChildType();
  6772. if (!elementType)
  6773. throwError(HQLERR_NullSetCannotGenerate);
  6774. Owned<ITypeInfo> transferType;
  6775. OwnedHqlExpr table;
  6776. OwnedHqlExpr declare;
  6777. unsigned numElements = expr->numChildren();
  6778. LinkedHqlExpr values = expr;
  6779. if ((isTypePassedByAddress(elementType) && ((elementType->getTypeCode() != type_varstring) || isUnknownSize(elementType))))
  6780. {
  6781. if (isUnknownSize(elementType))
  6782. {
  6783. MemoryBuffer serialized;
  6784. bool ok = createUnknownLengthStringSet(serialized, values);
  6785. assertex(ok);
  6786. Owned<IValue> value = createDataValue(serialized.toByteArray(), serialized.length());
  6787. OwnedHqlExpr constValue = createConstant(LINK(value));
  6788. OwnedHqlExpr initializer = createValue(no_create_initializer, constValue->getType(), LINK(constValue));
  6789. Owned<ITypeInfo> declareType = makeConstantModifier(constValue->getType());
  6790. declare.setown(declareCtx.getTempDeclare(declareType, initializer));
  6791. ITypeInfo * arrayType = makeReferenceModifier(makeSetType(LINK(elementType)));
  6792. table.setown(createValue(no_typetransfer, arrayType, LINK(declare)));
  6793. tgt.length.setown(getSizetConstant(serialized.length()));
  6794. }
  6795. else if (elementType->isReference())
  6796. {
  6797. // use a var string type to get better C++ generated...
  6798. transferType.set(elementType);
  6799. elementType.setown(makeVarStringType(UNKNOWN_LENGTH));
  6800. }
  6801. else
  6802. {
  6803. // for string, data and qstring we need to initialize the array with a list of characters instead of
  6804. // a cstring e.g., char[][2] = { { 'a','b' }, { 'c', 'd' } };
  6805. HqlExprArray newValues;
  6806. ForEachChild(idx, expr)
  6807. {
  6808. IHqlExpression * next = expr->queryChild(idx);
  6809. newValues.append(*createValue(no_create_initializer, next->getType(), LINK(next)));
  6810. }
  6811. values.setown(createValue(no_list, makeSetType(LINK(elementType)), newValues));
  6812. }
  6813. }
  6814. if (!declare)
  6815. {
  6816. Owned<ITypeInfo> t = makeConstantModifier(makeArrayType(LINK(elementType), numElements));
  6817. declare.setown(declareCtx.getTempDeclare(t, values));
  6818. if (transferType)
  6819. {
  6820. ITypeInfo * arrayType = makeArrayType(LINK(transferType), numElements);
  6821. table.setown(createValue(no_typetransfer, arrayType, LINK(declare)));
  6822. }
  6823. }
  6824. tgt.count.setown(getSizetConstant(numElements));
  6825. tgt.expr.set(table ? table : declare);
  6826. //make sure tables get added before any global functions
  6827. declareCtx.associateExpr(expr, tgt);
  6828. if (options.spanMultipleCpp)
  6829. {
  6830. BuildCtx protoctx(*code, mainprototypesAtom);
  6831. protoctx.addDeclareExternal(declare);
  6832. }
  6833. }
  6834. }
  6835. void HqlCppTranslator::doBuildExprDynList(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  6836. {
  6837. if (!ctx.getMatchExpr(expr, tgt))
  6838. {
  6839. ITypeInfo * type = expr->queryType();
  6840. ITypeInfo * elementType = type->queryChildType();
  6841. unsigned max = expr->numChildren();
  6842. //MORE: What if this is an array of variable length strings?
  6843. Owned<ITypeInfo> t = makeArrayType(LINK(elementType), max);
  6844. IHqlExpression * table = ctx.getTempDeclare(t, NULL);
  6845. // new code - should really use a selector...
  6846. unsigned idx;
  6847. CHqlBoundTarget boundTarget;
  6848. for (idx = 0; idx < max; idx++)
  6849. {
  6850. IHqlExpression * child = expr->queryChild(idx);
  6851. boundTarget.expr.setown(createValue(no_index, LINK(elementType), LINK(table), createConstant((int)idx)));
  6852. buildExprAssign(ctx, boundTarget, child);
  6853. }
  6854. tgt.count.setown(getSizetConstant(max));
  6855. tgt.expr.setown(table);
  6856. ctx.associateExpr(expr, tgt);
  6857. }
  6858. }
  6859. void HqlCppTranslator::doBuildExprList(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  6860. {
  6861. ITypeInfo * type = expr->queryType();
  6862. switch (type->getTypeCode())
  6863. {
  6864. case type_set:
  6865. case type_array:
  6866. {
  6867. LinkedHqlExpr values = expr;
  6868. ITypeInfo * childType = type->queryChildType();
  6869. //MORE: Also alien data types and other weird things...
  6870. //if (childType->getSize() == UNKNOWN_LENGTH)
  6871. if (expr->numChildren() == 0)
  6872. {
  6873. tgt.length.setown(getSizetConstant(0));
  6874. tgt.expr.setown(createValue(no_nullptr, makeReferenceModifier(LINK(type))));
  6875. return;
  6876. }
  6877. else if (isComplexSet(expr))
  6878. {
  6879. buildTempExpr(ctx, expr, tgt);
  6880. return;
  6881. }
  6882. if (isConstantSet(expr))
  6883. doBuildExprConstList(ctx, values, tgt);
  6884. else
  6885. doBuildExprDynList(ctx, values, tgt);
  6886. tgt.isAll.set(queryBoolExpr(false));
  6887. }
  6888. break;
  6889. default:
  6890. throw(!"This type of list not supported yet");
  6891. }
  6892. }
  6893. void HqlCppTranslator::doBuildAssignList(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * _expr)
  6894. {
  6895. OwnedHqlExpr expr = simplifyFixedLengthList(_expr);
  6896. node_operator op = expr->getOperator();
  6897. assertex(op == no_list);
  6898. ITypeInfo * type = expr->queryType();
  6899. switch (type->getTypeCode())
  6900. {
  6901. case type_set:
  6902. case type_array:
  6903. break;
  6904. default:
  6905. throw(!"This type of list not supported yet");
  6906. }
  6907. //This is an assignment, a non-constant set would end up creating two temporaries.
  6908. unsigned numItems = expr->numChildren();
  6909. if (((numItems > 0) && (numItems < 3)) || isComplexSet(expr) || !isConstantSet(expr))
  6910. {
  6911. Owned<IHqlCppSetBuilder> builder = createTempSetBuilder(target.queryType()->queryChildType(), target.isAll);
  6912. builder->buildDeclare(ctx);
  6913. buildSetAssign(ctx, builder, expr);
  6914. builder->buildFinish(ctx, target);
  6915. }
  6916. else if (numItems == 0)
  6917. {
  6918. CHqlBoundExpr temp;
  6919. buildExpr(ctx, expr, temp);
  6920. if (target.isAll)
  6921. {
  6922. if (temp.isAll)
  6923. ctx.addAssign(target.isAll, temp.isAll);
  6924. else
  6925. ctx.addAssign(target.isAll, queryBoolExpr(false));
  6926. }
  6927. ctx.addAssign(target.length, temp.length);
  6928. ctx.addAssign(target.expr, temp.expr);
  6929. }
  6930. else
  6931. {
  6932. OwnedHqlExpr cast = ensureExprType(expr, target.queryType());
  6933. OwnedHqlExpr simpleCast = simplifyFixedLengthList(cast);
  6934. // can do a direct assignment without any casts
  6935. doBuildExprAssign(ctx, target, simpleCast);
  6936. }
  6937. }
  6938. void HqlCppTranslator::doBuildExprAll(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  6939. {
  6940. tgt.isAll.set(queryBoolExpr(true));
  6941. tgt.length.setown(getSizetConstant(0));
  6942. tgt.expr.setown(createQuoted("0", makeSetType(NULL)));
  6943. }
  6944. void HqlCppTranslator::doBuildAssignAll(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  6945. {
  6946. CHqlBoundExpr temp;
  6947. buildExpr(ctx, expr, temp);
  6948. ctx.addAssign(target.isAll, temp.isAll);
  6949. ctx.addAssign(target.length, temp.length);
  6950. ctx.addAssign(target.expr, temp.expr);
  6951. }
  6952. //---------------------------------------------------------------------------
  6953. //-- no_not --
  6954. void HqlCppTranslator::doBuildExprNot(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  6955. {
  6956. assertex(expr->queryChild(0)->isBoolean());
  6957. CHqlBoundExpr bound;
  6958. buildExpr(ctx, expr->queryChild(0), bound);
  6959. tgt.expr.setown(getInverse(bound.expr));
  6960. }
  6961. //---------------------------------------------------------------------------
  6962. //-- no_or --
  6963. IHqlExpression * HqlCppTranslator::convertOrToAnd(IHqlExpression * expr)
  6964. {
  6965. bool invert = true;
  6966. if (expr->getOperator() == no_not)
  6967. {
  6968. invert = false;
  6969. expr = expr->queryChild(0);
  6970. }
  6971. assertex(expr->getOperator() == no_or);
  6972. HqlExprArray original, inverted;
  6973. expr->unwindList(original, no_or);
  6974. ForEachItemIn(idx, original)
  6975. inverted.append(*getInverse(&original.item(idx)));
  6976. IHqlExpression * ret = createValue(no_and, makeBoolType(), inverted);
  6977. if (invert)
  6978. ret = createValue(no_not, makeBoolType(), ret);
  6979. return ret;
  6980. }
  6981. //---------------------------------------------------------------------------
  6982. // no_unicodeorder
  6983. void HqlCppTranslator::doBuildAssignUnicodeOrder(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  6984. {
  6985. CHqlBoundExpr lhs, rhs, locale, strength;
  6986. buildCachedExpr(ctx, expr->queryChild(0), lhs);
  6987. buildCachedExpr(ctx, expr->queryChild(1), rhs);
  6988. buildCachedExpr(ctx, expr->queryChild(2), locale);
  6989. buildCachedExpr(ctx, expr->queryChild(3), strength);
  6990. Owned<IHqlExpression> op;
  6991. HqlExprArray args;
  6992. ITypeInfo * realType = lhs.expr->queryType()->queryPromotedType();
  6993. switch(realType->getTypeCode())
  6994. {
  6995. case type_unicode:
  6996. args.append(*getBoundLength(lhs));
  6997. args.append(*getElementPointer(lhs.expr));
  6998. args.append(*getBoundLength(rhs));
  6999. args.append(*getElementPointer(rhs.expr));
  7000. args.append(*getElementPointer(locale.expr));
  7001. args.append(*strength.expr.getLink());
  7002. op.setown(bindTranslatedFunctionCall(compareUnicodeUnicodeStrengthId, args));
  7003. break;
  7004. case type_varunicode:
  7005. args.append(*getElementPointer(lhs.expr));
  7006. args.append(*getElementPointer(rhs.expr));
  7007. args.append(*getElementPointer(locale.expr));
  7008. args.append(*strength.expr.getLink());
  7009. op.setown(bindTranslatedFunctionCall(compareVUnicodeVUnicodeStrengthId, args));
  7010. break;
  7011. case type_utf8:
  7012. args.append(*getBoundLength(lhs));
  7013. args.append(*getElementPointer(lhs.expr));
  7014. args.append(*getBoundLength(rhs));
  7015. args.append(*getElementPointer(rhs.expr));
  7016. args.append(*getElementPointer(locale.expr));
  7017. args.append(*strength.expr.getLink());
  7018. op.setown(bindTranslatedFunctionCall(compareUtf8Utf8StrengthId, args));
  7019. break;
  7020. default:
  7021. UNIMPLEMENTED;
  7022. }
  7023. assignBound(ctx, target, op);
  7024. }
  7025. //---------------------------------------------------------------------------
  7026. //-- no_order --
  7027. static void buildIteratorFirst(HqlCppTranslator & translator, BuildCtx & ctx, IHqlExpression * iter, IHqlExpression * row)
  7028. {
  7029. StringBuffer s;
  7030. translator.generateExprCpp(s, row).append(" = (byte*)");
  7031. translator.generateExprCpp(s, iter).append(".first();");
  7032. ctx.addQuoted(s);
  7033. }
  7034. static void buildIteratorNext(HqlCppTranslator & translator, BuildCtx & ctx, IHqlExpression * iter, IHqlExpression * row)
  7035. {
  7036. StringBuffer s;
  7037. translator.generateExprCpp(s, row).append(" = (byte*)");
  7038. translator.generateExprCpp(s, iter).append(".next();");
  7039. ctx.addQuoted(s);
  7040. }
  7041. static void buildIteratorIsValid(BuildCtx & ctx, IHqlExpression * iter, IHqlExpression * row, CHqlBoundExpr & bound)
  7042. {
  7043. bound.expr.set(row);
  7044. }
  7045. void HqlCppTranslator::doBuildAssignCompareRow(BuildCtx & ctx, EvaluateCompareInfo & info, IHqlExpression * left, IHqlExpression * right)
  7046. {
  7047. HqlExprArray leftValues, rightValues;
  7048. IHqlExpression * record = left->queryRecord();
  7049. expandRowOrder(left->queryNormalizedSelector(), record, leftValues, false);
  7050. expandRowOrder(right->queryNormalizedSelector(), record, rightValues, false);
  7051. optimizeOrderValues(leftValues, rightValues, false);
  7052. doBuildAssignCompare(ctx, info, leftValues, rightValues, true, false); //MORE: ,no_break,true
  7053. }
  7054. void HqlCppTranslator::doBuildAssignCompareTable(BuildCtx & ctx, EvaluateCompareInfo & info, IHqlExpression * left, IHqlExpression * right)
  7055. {
  7056. ITypeInfo * targetType = info.target.queryType();
  7057. OwnedHqlExpr zeroTarget = createConstant(targetType->castFrom(true, 0));
  7058. OwnedHqlExpr plusOne = createConstant(targetType->castFrom(true, +1));
  7059. OwnedHqlExpr minusOne = createConstant(targetType->castFrom(true, -1));
  7060. // cmp = 0;
  7061. assignBound(ctx, info.target, zeroTarget);
  7062. BuildCtx subctx(ctx);
  7063. subctx.addGroup(); // stop bound cursors leaking outside the testing block.
  7064. // i1 iter1; i1.first();
  7065. HqlExprAttr leftIter, leftRow;
  7066. Owned<IHqlCppDatasetCursor> cursor = createDatasetSelector(subctx, left);
  7067. cursor->buildIterateClass(subctx, leftIter, leftRow);
  7068. buildIteratorFirst(*this, subctx, leftIter, leftRow);
  7069. // i2; forEachIn(i2); {
  7070. CHqlBoundExpr isValid;
  7071. BuildCtx loopctx(subctx);
  7072. buildDatasetIterate(loopctx, right, true);
  7073. bindTableCursor(loopctx, left, leftRow);
  7074. // if (!i1.isValid()) { cmp = -1; break; }
  7075. buildIteratorIsValid(loopctx, leftIter, leftRow, isValid);
  7076. OwnedHqlExpr test = createValue(no_not, makeBoolType(), isValid.expr.getClear());
  7077. BuildCtx moreRightCtx(loopctx);
  7078. moreRightCtx.addFilter(test);
  7079. if (info.actionIfDiffer == return_stmt)
  7080. {
  7081. if (info.isEqualityCompare())
  7082. {
  7083. OwnedHqlExpr returnValue = info.getEqualityReturnValue();
  7084. moreRightCtx.addReturn(returnValue);
  7085. }
  7086. else
  7087. moreRightCtx.addReturn(minusOne);
  7088. }
  7089. else
  7090. {
  7091. buildExprAssign(moreRightCtx, info.target, minusOne);
  7092. moreRightCtx.addBreak();
  7093. }
  7094. //Now do the comparison....
  7095. {
  7096. EvaluateCompareInfo childInfo(info);
  7097. if (childInfo.actionIfDiffer == break_stmt)
  7098. childInfo.actionIfDiffer = null_stmt;
  7099. //***childInfo??
  7100. doBuildAssignCompareRow(loopctx, info, left, right);
  7101. }
  7102. if (info.actionIfDiffer != return_stmt)
  7103. {
  7104. // if (cmp != 0) break;
  7105. BuildCtx donectx(loopctx);
  7106. donectx.addFilter(info.target.expr);
  7107. donectx.addQuoted("break;");
  7108. }
  7109. // i1.next();
  7110. buildIteratorNext(*this, loopctx, leftIter, leftRow);
  7111. buildIteratorIsValid(subctx, leftIter, leftRow, isValid);
  7112. if (info.actionIfDiffer == return_stmt)
  7113. {
  7114. //if (i1.isValid) return +1;
  7115. BuildCtx moreLeftCtx(subctx);
  7116. moreLeftCtx.addFilter(isValid.expr);
  7117. if (info.isEqualityCompare())
  7118. {
  7119. OwnedHqlExpr returnValue = info.getEqualityReturnValue();
  7120. moreLeftCtx.addReturn(returnValue);
  7121. }
  7122. else
  7123. moreLeftCtx.addReturn(plusOne);
  7124. }
  7125. else
  7126. {
  7127. //if (cmp == 0 && i1.isValid) cmp = +1;
  7128. OwnedHqlExpr cmp = createBoolExpr(no_and, createBoolExpr(no_eq, LINK(info.target.expr), LINK(zeroTarget)), LINK(isValid.expr));
  7129. BuildCtx moreLeftCtx(subctx);
  7130. moreLeftCtx.addFilter(cmp);
  7131. buildExprAssign(moreLeftCtx, info.target, plusOne);
  7132. BuildCtx tailctx(ctx);
  7133. if (info.actionIfDiffer == break_stmt)
  7134. {
  7135. tailctx.addFilter(info.target.expr);
  7136. tailctx.addBreak();
  7137. }
  7138. }
  7139. }
  7140. void HqlCppTranslator::expandRowOrder(IHqlExpression * selector, IHqlExpression * record, HqlExprArray & values, bool isRow)
  7141. {
  7142. ForEachChild(idx, record)
  7143. {
  7144. IHqlExpression * field = record->queryChild(idx);
  7145. switch (field->getOperator())
  7146. {
  7147. case no_ifblock:
  7148. expandRowOrder(selector, field->queryChild(1), values, isRow);
  7149. break;
  7150. case no_record:
  7151. expandRowOrder(selector, field, values, isRow);
  7152. break;
  7153. case no_field:
  7154. {
  7155. OwnedHqlExpr selected;
  7156. if (isRow)
  7157. selected.setown(createNewSelectExpr(LINK(selector), LINK(field)));
  7158. else
  7159. selected.setown(createSelectExpr(LINK(selector), LINK(field)));
  7160. if (field->isDatarow())
  7161. expandRowOrder(selected, field->queryRecord(), values, false);
  7162. else
  7163. values.append(*LINK(selected));
  7164. break;
  7165. }
  7166. }
  7167. }
  7168. }
  7169. void HqlCppTranslator::expandSimpleOrder(IHqlExpression * left, IHqlExpression * right, HqlExprArray & leftValues, HqlExprArray & rightValues)
  7170. {
  7171. while ((left->getOperator() == no_negate) && (right->getOperator() == no_negate))
  7172. {
  7173. IHqlExpression * temp = right->queryChild(0);
  7174. right = left->queryChild(0);
  7175. left = temp;
  7176. }
  7177. if (left == right)
  7178. {
  7179. //Weird code is here just so I can force some strange exceptions in the regression suite.
  7180. IHqlExpression * cur = left;
  7181. if (cur->getOperator() == no_alias)
  7182. cur = cur->queryChild(0);
  7183. if (cur->getOperator() != no_nofold)
  7184. return;
  7185. }
  7186. if (left->isDatarow())
  7187. {
  7188. IHqlExpression * record = left->queryRecord();
  7189. assertex(right->isDatarow() && (record == right->queryRecord()));
  7190. expandRowOrder(left, record, leftValues, !isActiveRow(left));
  7191. expandRowOrder(right, record, rightValues, !isActiveRow(right));
  7192. }
  7193. else
  7194. {
  7195. leftValues.append(*LINK(left));
  7196. rightValues.append(*LINK(right));
  7197. }
  7198. }
  7199. void HqlCppTranslator::expandOrder(IHqlExpression * expr, HqlExprArray & leftValues, HqlExprArray & rightValues, SharedHqlExpr & defaultValue)
  7200. {
  7201. OwnedHqlExpr left = normalizeListCasts(expr->queryChild(0));
  7202. OwnedHqlExpr right = normalizeListCasts(expr->queryChild(1));
  7203. if ((isFixedLengthList(left) || isNullList(left)) && (isFixedLengthList(right) || isNullList(right)))
  7204. {
  7205. unsigned maxLeft = left->numChildren();
  7206. unsigned maxRight = right->numChildren();
  7207. unsigned max = std::min(maxLeft, maxRight);
  7208. for (unsigned i=0; i < max; i++)
  7209. expandSimpleOrder(left->queryChild(i), right->queryChild(i), leftValues, rightValues);
  7210. if (maxLeft != maxRight)
  7211. defaultValue.setown(createConstant(signedType->castFrom(true, ((maxLeft > maxRight) ? +1 : -1))));
  7212. }
  7213. else
  7214. expandSimpleOrder(left, right, leftValues, rightValues);
  7215. }
  7216. IHqlExpression * HqlCppTranslator::querySimpleOrderSelector(IHqlExpression * expr)
  7217. {
  7218. if (expr->getOperator() != no_select)
  7219. return NULL;
  7220. return queryDatasetCursor(expr);
  7221. }
  7222. static unsigned getMemcmpSize(IHqlExpression * left, IHqlExpression * right, bool isEqualityCompare)
  7223. {
  7224. ITypeInfo * leftType = left->queryType();
  7225. if (!leftType)
  7226. return 0;
  7227. if (!isSameBasicType(leftType, right->queryType()))
  7228. return 0;
  7229. unsigned size = leftType->getSize();
  7230. switch (leftType->getTypeCode())
  7231. {
  7232. case type_bigendianint:
  7233. case type_boolean:
  7234. return size;
  7235. case type_littleendianint:
  7236. if ((size == 1) && !leftType->isSigned())
  7237. return 1;
  7238. if (isEqualityCompare)
  7239. return size;
  7240. break;
  7241. case type_string:
  7242. case type_data:
  7243. case type_qstring:
  7244. if (size != UNKNOWN_LENGTH)
  7245. return size;
  7246. break;
  7247. }
  7248. return 0;
  7249. }
  7250. void HqlCppTranslator::optimizeOrderValues(HqlExprArray & leftValues, HqlExprArray & rightValues, bool isEqualityCompare)
  7251. {
  7252. unsigned max = leftValues.ordinality();
  7253. if (max <= 1)
  7254. return;
  7255. for (unsigned i=0; i < max-1; i++)
  7256. {
  7257. IHqlExpression * curFirstLeft = &leftValues.item(i);
  7258. IHqlExpression * curFirstRight = &rightValues.item(i);
  7259. IHqlExpression * leftSel = querySimpleOrderSelector(curFirstLeft);
  7260. IHqlExpression * rightSel = querySimpleOrderSelector(curFirstRight);
  7261. if (!leftSel || !rightSel)
  7262. continue;
  7263. unsigned compareSize = getMemcmpSize(curFirstLeft, curFirstRight, isEqualityCompare);
  7264. if (!compareSize)
  7265. continue;
  7266. IHqlExpression * nextLeft = &leftValues.item(i+1);
  7267. IHqlExpression * nextRight = &rightValues.item(i+1);
  7268. if (querySimpleOrderSelector(nextLeft) != leftSel || querySimpleOrderSelector(nextRight) != rightSel ||
  7269. (getMemcmpSize(nextLeft, nextRight, isEqualityCompare) == 0))
  7270. continue;
  7271. //Worth iterating the selectors...
  7272. RecordSelectIterator leftIter(leftSel->queryRecord(), leftSel);
  7273. ForEach(leftIter)
  7274. if (leftIter.query() == curFirstLeft)
  7275. break;
  7276. if (!leftIter.isValid() || leftIter.isInsideIfBlock())
  7277. continue;
  7278. RecordSelectIterator rightIter(rightSel->queryRecord(), rightSel);
  7279. ForEach(rightIter)
  7280. if (rightIter.query() == curFirstRight)
  7281. break;
  7282. if (!rightIter.isValid() || rightIter.isInsideIfBlock())
  7283. continue;
  7284. unsigned j; // linux wants it declared outside of 'for'
  7285. for (j=i+1; j < max; j++)
  7286. {
  7287. if (!leftIter.next() || leftIter.isInsideIfBlock())
  7288. break;
  7289. if (!rightIter.next() || rightIter.isInsideIfBlock())
  7290. break;
  7291. IHqlExpression * nextLeft = &leftValues.item(j);
  7292. IHqlExpression * nextRight = &rightValues.item(j);
  7293. if (leftIter.query() != nextLeft || rightIter.query() != nextRight)
  7294. break;
  7295. unsigned thisSize = getMemcmpSize(nextLeft, nextRight, isEqualityCompare);
  7296. if (!thisSize)
  7297. break;
  7298. compareSize += thisSize;
  7299. }
  7300. if (j != i+1)
  7301. {
  7302. IHqlExpression * newLeft = createValue(no_typetransfer, makeStringType(compareSize), LINK(curFirstLeft));
  7303. IHqlExpression * newRight = createValue(no_typetransfer, makeStringType(compareSize), LINK(curFirstRight));
  7304. leftValues.replace(*newLeft, i);
  7305. rightValues.replace(*newRight, i);
  7306. leftValues.removen(i+1, j-(i+1));
  7307. rightValues.removen(i+1, j-(i+1));
  7308. max -= (j - (i+1));
  7309. }
  7310. }
  7311. }
  7312. inline IHqlExpression * createSignedConstant(__int64 value)
  7313. {
  7314. return createConstant(signedType->castFrom(true, value));
  7315. }
  7316. static IHqlExpression * convertAllToInteger(IHqlExpression * allExpr)
  7317. {
  7318. IValue * allValue = allExpr->queryValue();
  7319. if (allValue)
  7320. return createSignedConstant(allValue->getBoolValue() ? 1 : 0);
  7321. return createValue(no_if, LINK(signedType), LINK(allExpr), createSignedConstant(1), createSignedConstant(0));
  7322. }
  7323. void HqlCppTranslator::doBuildAssignCompareElement(BuildCtx & ctx, EvaluateCompareInfo & info, IHqlExpression * left, IHqlExpression * right, bool isFirst, bool isLast)
  7324. {
  7325. if (left->getOperator() == no_if && right->getOperator() == no_if && left->queryChild(0) == right->queryChild(0))
  7326. {
  7327. BuildCtx subctx(ctx);
  7328. IHqlStmt * filter = buildFilterViaExpr(subctx, left->queryChild(0));
  7329. doBuildAssignCompareElement(subctx, info, left->queryChild(1), right->queryChild(1), isFirst, false);
  7330. if ((isFirst && (info.actionIfDiffer != return_stmt)) || left->queryChild(2) != right->queryChild(2))
  7331. {
  7332. subctx.selectElse(filter);
  7333. doBuildAssignCompareElement(subctx, info, left->queryChild(2), right->queryChild(2), isFirst, false);
  7334. }
  7335. return;
  7336. }
  7337. if (left == right)
  7338. {
  7339. //Can happen from conditions expanded above
  7340. if (isFirst)
  7341. {
  7342. if (info.actionIfDiffer != return_stmt)
  7343. buildExprAssign(ctx, info.target, queryZero());
  7344. }
  7345. return;
  7346. }
  7347. ITypeInfo * leftType = left->queryType();
  7348. type_t tc;
  7349. if (leftType)
  7350. tc = leftType->getTypeCode();
  7351. else
  7352. tc = type_set;
  7353. CHqlBoundExpr lhs,rhs;
  7354. bool useMemCmp = false;
  7355. switch (tc)
  7356. {
  7357. case type_dictionary:
  7358. {
  7359. //You can't iterate dictionaries, so convert to datasets first. A bit of a silly comparison anyway
  7360. OwnedHqlExpr dsLeft = createDataset(no_datasetfromdictionary, LINK(left));
  7361. OwnedHqlExpr dsRight = createDataset(no_datasetfromdictionary, LINK(right));
  7362. doBuildAssignCompareTable(ctx, info, dsLeft, dsRight);
  7363. return;
  7364. }
  7365. case type_table:
  7366. case type_groupedtable:
  7367. doBuildAssignCompareTable(ctx, info, left, right);
  7368. return;
  7369. case type_row:
  7370. doBuildAssignCompareRow(ctx, info, left, right);
  7371. return;
  7372. case type_bigendianint:
  7373. {
  7374. //MORE: Compare big endian integers with a memcmp
  7375. if (hasAddress(ctx, left) && hasAddress(ctx, right) && isSameBasicType(leftType, right->queryType()))
  7376. {
  7377. buildAddress(ctx, left, lhs);
  7378. buildAddress(ctx, right, rhs);
  7379. useMemCmp = true;
  7380. break;
  7381. }
  7382. Owned<ITypeInfo> type = makeIntType(leftType->getSize(), leftType->isSigned());
  7383. OwnedHqlExpr intLeft = createValue(no_implicitcast, type.getLink(), LINK(left));
  7384. OwnedHqlExpr intRight = createValue(no_implicitcast, type.getLink(), LINK(right));
  7385. buildCachedExpr(ctx, intLeft, lhs);
  7386. buildCachedExpr(ctx, intRight, rhs);
  7387. break;
  7388. }
  7389. case type_string:
  7390. case type_data:
  7391. case type_qstring:
  7392. {
  7393. OwnedHqlExpr simpleLeft = getSimplifyCompareArg(left);
  7394. OwnedHqlExpr simpleRight = getSimplifyCompareArg(right);
  7395. buildCachedExpr(ctx, simpleLeft, lhs);
  7396. buildCachedExpr(ctx, simpleRight, rhs);
  7397. break;
  7398. }
  7399. default:
  7400. buildCachedExpr(ctx, left, lhs);
  7401. buildCachedExpr(ctx, right, rhs);
  7402. break;
  7403. }
  7404. ITypeInfo * realType = realType = lhs.queryType()->queryPromotedType();
  7405. tc = realType->getTypeCode();
  7406. IHqlExpression * op = NULL;
  7407. switch (tc)
  7408. {
  7409. //MORE: Should common up with comparison code...
  7410. case type_string:
  7411. case type_data:
  7412. case type_qstring:
  7413. {
  7414. HqlExprArray args;
  7415. IIdAtom * func;
  7416. if (lhs.length || rhs.length || needVarStringCompare(realType, rhs.queryType()->queryPromotedType()))
  7417. {
  7418. //MORE: This does not cope with different padding characters...
  7419. func = queryStrCompareFunc(realType);
  7420. args.append(*getBoundLength(lhs));
  7421. args.append(*getElementPointer(lhs.expr));
  7422. args.append(*getBoundLength(rhs));
  7423. args.append(*getElementPointer(rhs.expr));
  7424. }
  7425. else
  7426. {
  7427. func = memcmpId;
  7428. args.append(*getElementPointer(lhs.expr));
  7429. args.append(*getElementPointer(rhs.expr));
  7430. args.append(*getSizetConstant(realType->getSize()));
  7431. }
  7432. op = bindTranslatedFunctionCall(func, args);
  7433. break;
  7434. }
  7435. case type_unicode:
  7436. {
  7437. HqlExprArray args;
  7438. assertex(haveCommonLocale(leftType, right->queryType()));
  7439. char const * locale = getCommonLocale(leftType, right->queryType())->str();
  7440. args.append(*getBoundLength(lhs));
  7441. args.append(*getElementPointer(lhs.expr));
  7442. args.append(*getBoundLength(rhs));
  7443. args.append(*getElementPointer(rhs.expr));
  7444. args.append(*createConstant(locale));
  7445. op = bindTranslatedFunctionCall(compareUnicodeUnicodeId, args);
  7446. break;
  7447. }
  7448. case type_varunicode:
  7449. {
  7450. HqlExprArray args;
  7451. assertex(haveCommonLocale(leftType, right->queryType()));
  7452. char const * locale = getCommonLocale(leftType, right->queryType())->str();
  7453. args.append(*getElementPointer(lhs.expr));
  7454. args.append(*getElementPointer(rhs.expr));
  7455. args.append(*createConstant(locale));
  7456. op = bindTranslatedFunctionCall(compareVUnicodeVUnicodeId, args);
  7457. break;
  7458. }
  7459. case type_utf8:
  7460. {
  7461. HqlExprArray args;
  7462. assertex(haveCommonLocale(leftType, right->queryType()));
  7463. char const * locale = getCommonLocale(leftType, right->queryType())->str();
  7464. args.append(*getBoundLength(lhs));
  7465. args.append(*getElementPointer(lhs.expr));
  7466. args.append(*getBoundLength(rhs));
  7467. args.append(*getElementPointer(rhs.expr));
  7468. args.append(*createConstant(locale));
  7469. op = bindTranslatedFunctionCall(compareUtf8Utf8Id, args);
  7470. break;
  7471. }
  7472. case type_varstring:
  7473. {
  7474. HqlExprArray args;
  7475. args.append(*getElementPointer(lhs.expr));
  7476. args.append(*getElementPointer(rhs.expr));
  7477. op = bindTranslatedFunctionCall(compareVStrVStrId, args);
  7478. break;
  7479. }
  7480. case type_decimal:
  7481. {
  7482. HqlExprArray args;
  7483. if (!isPushed(lhs) && !isPushed(rhs) && (leftType->queryPromotedType() == right->queryType()->queryPromotedType()))
  7484. {
  7485. args.append(*getSizetConstant(leftType->queryPromotedType()->getSize()));
  7486. args.append(*getPointer(lhs.expr));
  7487. args.append(*getPointer(rhs.expr));
  7488. op = bindTranslatedFunctionCall(leftType->isSigned() ? DecCompareDecimalId : DecCompareUDecimalId, args);
  7489. }
  7490. else
  7491. {
  7492. bool pushedLhs = ensurePushed(ctx, lhs);
  7493. bool pushedRhs = ensurePushed(ctx, rhs);
  7494. //NB: Arguments could be pushed in opposite order 1 <=> x *2
  7495. if (pushedLhs && !pushedRhs)
  7496. op = bindTranslatedFunctionCall(DecDistinctRId, args);
  7497. else
  7498. op = bindTranslatedFunctionCall(DecDistinctId, args);
  7499. }
  7500. break;
  7501. }
  7502. case type_set:
  7503. case type_array:
  7504. {
  7505. //compare all
  7506. OwnedHqlExpr leftAll = lhs.getIsAll();
  7507. OwnedHqlExpr rightAll = rhs.getIsAll();
  7508. assertex(leftAll && rightAll);
  7509. if (leftAll != rightAll)
  7510. {
  7511. if (leftAll->queryValue() && rightAll->queryValue())
  7512. {
  7513. op = createConstant(leftAll->queryValue()->getIntValue() - rightAll->queryValue()->getIntValue());
  7514. break;
  7515. }
  7516. if (getIntValue(leftAll, false) || getIntValue(rightAll, false))
  7517. {
  7518. op = createValue(no_sub, LINK(signedType), convertAllToInteger(leftAll), convertAllToInteger(rightAll));
  7519. break;
  7520. }
  7521. }
  7522. if (lhs.expr != rhs.expr)
  7523. {
  7524. HqlExprArray args;
  7525. args.append(*getBoundLength(lhs));
  7526. args.append(*getElementPointer(lhs.expr));
  7527. args.append(*getBoundLength(rhs));
  7528. args.append(*getElementPointer(rhs.expr));
  7529. op = bindTranslatedFunctionCall(compareDataDataId, args);
  7530. }
  7531. if (leftAll != rightAll)
  7532. {
  7533. IHqlExpression * orderAll = createValue(no_sub, LINK(signedType), convertAllToInteger(leftAll), convertAllToInteger(rightAll));
  7534. if (op)
  7535. {
  7536. IHqlExpression * cond = NULL;
  7537. if (!getIntValue(leftAll, true))
  7538. {
  7539. if (!getIntValue(rightAll, true))
  7540. cond = NULL;
  7541. else
  7542. cond = LINK(rightAll);
  7543. }
  7544. else
  7545. {
  7546. if (!getIntValue(rightAll, true))
  7547. cond = LINK(leftAll);
  7548. else
  7549. cond = createBoolExpr(no_or, LINK(leftAll), LINK(rightAll));
  7550. }
  7551. if (cond)
  7552. op = createValue(no_if, LINK(signedType), cond, orderAll, op);
  7553. else
  7554. orderAll->Release();
  7555. }
  7556. else
  7557. op = orderAll;
  7558. }
  7559. if (!op)
  7560. op = getZero();
  7561. break;
  7562. }
  7563. case type_boolean:
  7564. case type_swapint:
  7565. case type_packedint:
  7566. case type_int:
  7567. if (!useMemCmp && !info.isEqualityCompare() && (realType->getSize() < signedType->getSize()))
  7568. {
  7569. op = createValue(no_sub, LINK(signedType),
  7570. createValue(no_implicitcast, LINK(signedType), lhs.expr.getLink()),
  7571. createValue(no_implicitcast, LINK(signedType), rhs.expr.getLink()));
  7572. break;
  7573. }
  7574. //fall through
  7575. default:
  7576. if (useMemCmp)
  7577. {
  7578. HqlExprArray args;
  7579. args.append(*lhs.expr.getLink());
  7580. args.append(*rhs.expr.getLink());
  7581. args.append(*getSizetConstant(leftType->getSize()));
  7582. op = bindTranslatedFunctionCall(memcmpId, args);
  7583. }
  7584. else
  7585. {
  7586. if (info.isEqualityCompare())
  7587. {
  7588. op = createBoolExpr(no_ne, LINK(lhs.expr), LINK(rhs.expr));
  7589. }
  7590. else
  7591. {
  7592. ensureSimpleExpr(ctx, lhs);
  7593. ensureSimpleExpr(ctx, rhs);
  7594. OwnedHqlExpr testlt = createBoolExpr(no_lt, lhs.expr.getLink(), rhs.expr.getLink());
  7595. OwnedHqlExpr retlt = createIntConstant(-1);
  7596. OwnedHqlExpr testgt = createBoolExpr(no_gt, lhs.expr.getLink(), rhs.expr.getLink());
  7597. OwnedHqlExpr retgt = createIntConstant(+1);
  7598. if (info.actionIfDiffer == return_stmt)
  7599. {
  7600. BuildCtx subctx1(ctx);
  7601. subctx1.addFilter(testlt);
  7602. subctx1.addReturn(retlt);
  7603. BuildCtx subctx2(ctx);
  7604. subctx2.addFilter(testgt);
  7605. subctx2.addReturn(retgt);
  7606. return;
  7607. }
  7608. else
  7609. {
  7610. // generate (a < b ? -1 : (a > b ? +1 : 0))
  7611. op = createValue(no_if, LINK(signedType),
  7612. LINK(testlt), LINK(retlt),
  7613. createValue(no_if, LINK(signedType), LINK(testgt), LINK(retgt), getZero()));
  7614. }
  7615. }
  7616. }
  7617. break;
  7618. }
  7619. OwnedHqlExpr safeReleaseOp = op;
  7620. assertex(op);
  7621. BuildCtx subctx(ctx);
  7622. if (info.isEqualityCompare() && (info.actionIfDiffer == return_stmt))
  7623. {
  7624. subctx.addFilter(op);
  7625. OwnedHqlExpr returnValue = info.getEqualityReturnValue();
  7626. subctx.addReturn(returnValue);
  7627. }
  7628. else
  7629. {
  7630. assignBound(subctx, info.target, op);
  7631. switch (info.actionIfDiffer)
  7632. {
  7633. case break_stmt:
  7634. subctx.addFilter(info.target.expr);
  7635. subctx.addBreak();
  7636. break;
  7637. case return_stmt:
  7638. if (!isLast || info.hasDefault)
  7639. subctx.addFilter(info.target.expr);
  7640. else
  7641. info.alwaysReturns = true;
  7642. subctx.addReturn(info.target.expr);
  7643. break;
  7644. }
  7645. }
  7646. }
  7647. void HqlCppTranslator::doBuildAssignCompare(BuildCtx & ctx, EvaluateCompareInfo & info, HqlExprArray & leftValues, HqlExprArray & rightValues, bool isFirst, bool isOuter)
  7648. {
  7649. assertex(leftValues.ordinality() == rightValues.ordinality());
  7650. Owned<BuildCtx> subctx = new BuildCtx(ctx);
  7651. OwnedHqlExpr compare = createBoolExpr(no_not, LINK(info.target.expr));
  7652. unsigned idx;
  7653. unsigned max = leftValues.ordinality();
  7654. for (idx = 0; idx < max; idx++)
  7655. {
  7656. if ((idx & 7) == 0)
  7657. subctx.setown(new BuildCtx(ctx));
  7658. if (!info.actionIfDiffer && !isFirst)
  7659. subctx->addFilter(compare);
  7660. doBuildAssignCompareElement(*subctx, info, &leftValues.item(idx), &rightValues.item(idx), isFirst, isOuter && (idx == max-1));
  7661. isFirst = false;
  7662. }
  7663. }
  7664. void HqlCppTranslator::doBuildAssignOrder(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  7665. {
  7666. HqlExprArray leftValues, rightValues;
  7667. OwnedHqlExpr defaultValue;
  7668. expandOrder(expr, leftValues, rightValues, defaultValue);
  7669. optimizeOrderValues(leftValues, rightValues, false);
  7670. EvaluateCompareInfo info(no_order);
  7671. info.target.set(target);
  7672. doBuildAssignCompare(ctx, info, leftValues, rightValues, true, false);
  7673. unsigned maxLeft = leftValues.ordinality();
  7674. if (defaultValue)
  7675. {
  7676. if (maxLeft != 0)
  7677. {
  7678. OwnedHqlExpr compare = createBoolExpr(no_not, LINK(target.expr));
  7679. ctx.addFilter(compare);
  7680. }
  7681. buildExprAssign(ctx, target, defaultValue);
  7682. }
  7683. else if (maxLeft == 0)
  7684. buildExprAssign(ctx, target, queryZero());
  7685. }
  7686. void HqlCppTranslator::doBuildReturnCompare(BuildCtx & ctx, IHqlExpression * expr, node_operator op, bool isBoolEquality)
  7687. {
  7688. HqlExprArray leftValues, rightValues;
  7689. OwnedHqlExpr defaultValue;
  7690. expandOrder(expr, leftValues, rightValues, defaultValue);
  7691. optimizeOrderValues(leftValues, rightValues, (op == no_eq));
  7692. EvaluateCompareInfo info(op);
  7693. info.actionIfDiffer = return_stmt;
  7694. info.isBoolEquality = isBoolEquality;
  7695. info.hasDefault = (defaultValue != NULL);
  7696. createTempFor(ctx, expr, info.target);
  7697. doBuildAssignCompare(ctx, info, leftValues, rightValues, true, true);
  7698. if (!info.alwaysReturns)
  7699. {
  7700. if (info.isBoolEquality)
  7701. {
  7702. OwnedHqlExpr returnValue = createConstant(defaultValue == NULL);
  7703. buildReturn(ctx, returnValue);
  7704. }
  7705. else
  7706. {
  7707. if (defaultValue)
  7708. buildReturn(ctx, defaultValue);
  7709. else
  7710. buildReturn(ctx, queryZero());
  7711. }
  7712. }
  7713. }
  7714. //---------------------------------------------------------------------------
  7715. //-- no_hash --
  7716. class HashCodeCreator
  7717. {
  7718. public:
  7719. HashCodeCreator(HqlCppTranslator & _translator, const CHqlBoundTarget & _target, node_operator _hashKind, bool _optimizeInternal)
  7720. : translator(_translator), target(_target), hashKind(_hashKind), optimizeInternal(_optimizeInternal)
  7721. {
  7722. prevFunc = NULL;
  7723. }
  7724. //Combine calls to the hash function on adjacent memory to minimise the number of calls
  7725. //and the generated code size.
  7726. void buildHash(BuildCtx & ctx, IIdAtom * func, IHqlExpression * length, IHqlExpression * ptr)
  7727. {
  7728. if ((func == hash32DataId) || (func == hash64DataId))
  7729. {
  7730. ptr = stripTranslatedCasts(ptr);
  7731. if (prevFunc)
  7732. {
  7733. if ((prevFunc == func) && rightFollowsLeft(prevPtr, prevLength, ptr))
  7734. {
  7735. prevLength.setown(peepholeAddExpr(prevLength, length));
  7736. return;
  7737. }
  7738. flush(ctx);
  7739. }
  7740. prevFunc = func;
  7741. prevLength.set(length);
  7742. prevPtr.set(ptr);
  7743. return;
  7744. }
  7745. flush(ctx);
  7746. buildCall(ctx, func, length, ptr);
  7747. }
  7748. void beginCondition(BuildCtx & ctx)
  7749. {
  7750. ensureInitialAssigned(ctx);
  7751. flush(ctx);
  7752. }
  7753. void endCondition(BuildCtx & ctx)
  7754. {
  7755. flush(ctx);
  7756. }
  7757. void finish(BuildCtx & ctx)
  7758. {
  7759. flush(ctx);
  7760. ensureInitialAssigned(ctx);
  7761. }
  7762. void setInitialValue(IHqlExpression * expr)
  7763. {
  7764. initialValue.set(expr);
  7765. }
  7766. inline node_operator kind() const { return hashKind; }
  7767. inline bool optimize() const { return optimizeInternal; }
  7768. protected:
  7769. void buildCall(BuildCtx & ctx, IIdAtom * func, IHqlExpression * length, IHqlExpression * ptr)
  7770. {
  7771. if (func == hash32DataId)
  7772. {
  7773. unsigned fixedSize = (unsigned)getIntValue(length, 0);
  7774. switch (fixedSize)
  7775. {
  7776. case 1: func = hash32Data1Id; break;
  7777. case 2: func = hash32Data2Id; break;
  7778. case 3: func = hash32Data3Id; break;
  7779. case 4: func = hash32Data4Id; break;
  7780. case 5: func = hash32Data5Id; break;
  7781. case 6: func = hash32Data6Id; break;
  7782. case 7: func = hash32Data7Id; break;
  7783. case 8: func = hash32Data8Id; break;
  7784. }
  7785. if (func != hash32DataId)
  7786. length = NULL;
  7787. }
  7788. HqlExprArray args;
  7789. if (length)
  7790. args.append(*LINK(length));
  7791. args.append(*LINK(ptr));
  7792. if (initialValue)
  7793. args.append(*initialValue.getClear());
  7794. else
  7795. args.append(*LINK(target.expr));
  7796. CHqlBoundExpr boundHash;
  7797. boundHash.expr.setown(translator.bindTranslatedFunctionCall(func, args));
  7798. translator.assign(ctx, target, boundHash);
  7799. }
  7800. void ensureInitialAssigned(BuildCtx & ctx)
  7801. {
  7802. if (initialValue)
  7803. {
  7804. translator.assignBound(ctx, target, initialValue);
  7805. initialValue.clear();
  7806. }
  7807. }
  7808. void flush(BuildCtx & ctx)
  7809. {
  7810. if (prevFunc)
  7811. {
  7812. buildCall(ctx, prevFunc, prevLength, prevPtr);
  7813. prevFunc = NULL;
  7814. }
  7815. }
  7816. protected:
  7817. HqlCppTranslator & translator;
  7818. const CHqlBoundTarget & target;
  7819. LinkedHqlExpr initialValue;
  7820. node_operator hashKind;
  7821. bool optimizeInternal;
  7822. IIdAtom * prevFunc;
  7823. OwnedHqlExpr prevLength;
  7824. OwnedHqlExpr prevPtr;
  7825. };
  7826. void HqlCppTranslator::doBuildAssignHashCrc(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  7827. {
  7828. IHqlExpression * child = expr->queryChild(0);
  7829. ITypeInfo * childType = child->queryType();
  7830. LinkedHqlExpr initialValue = queryZero();
  7831. node_operator op = expr->getOperator();
  7832. if (op == no_hash32)
  7833. initialValue.setown(createConstant(createIntValue(HASH32_INIT, 4, false)));
  7834. else if (op == no_hash64)
  7835. initialValue.setown(createConstant(createIntValue(HASH64_INIT, 8, false)));
  7836. HashCodeCreator creator(*this, target, op, expr->hasAttribute(internalAtom));
  7837. creator.setInitialValue(initialValue);
  7838. if (child->getOperator() != no_sortlist)
  7839. doBuildAssignHashElement(ctx, creator, child);
  7840. else
  7841. {
  7842. unsigned max = child->numChildren();
  7843. unsigned idx;
  7844. for (idx = 0; idx < max; idx++)
  7845. doBuildAssignHashElement(ctx, creator, child->queryChild(idx));
  7846. }
  7847. creator.finish(ctx);
  7848. }
  7849. void HqlCppTranslator::doBuildAssignHashElement(BuildCtx & ctx, HashCodeCreator & creator, IHqlExpression * elem, IHqlExpression * record)
  7850. {
  7851. bool useNewSelector = elem->isDatarow() && ((elem->getOperator() != no_select) || isNewSelector(elem));
  7852. ForEachChild(i, record)
  7853. {
  7854. IHqlExpression * cur = record->queryChild(i);
  7855. switch (cur->getOperator())
  7856. {
  7857. case no_field:
  7858. {
  7859. OwnedHqlExpr selected = useNewSelector ? createNewSelectExpr(LINK(elem), LINK(cur)) : createSelectExpr(LINK(elem), LINK(cur));
  7860. doBuildAssignHashElement(ctx, creator, selected);
  7861. break;
  7862. }
  7863. case no_record:
  7864. doBuildAssignHashElement(ctx, creator, elem, cur);
  7865. break;
  7866. case no_ifblock:
  7867. doBuildAssignHashElement(ctx, creator, elem, cur->queryChild(1));
  7868. break;
  7869. }
  7870. }
  7871. }
  7872. void HqlCppTranslator::doBuildAssignHashElement(BuildCtx & ctx, HashCodeCreator & creator, IHqlExpression * elem)
  7873. {
  7874. if (creator.optimize())
  7875. {
  7876. switch (elem->getOperator())
  7877. {
  7878. case no_if:
  7879. {
  7880. BuildCtx subctx(ctx);
  7881. creator.beginCondition(subctx);
  7882. IHqlStmt * cond = buildFilterViaExpr(subctx, elem->queryChild(0));
  7883. doBuildAssignHashElement(subctx, creator, elem->queryChild(1));
  7884. creator.endCondition(subctx);
  7885. IHqlExpression * elseValue = elem->queryChild(2);
  7886. if (elseValue && elseValue->getOperator() != no_constant)
  7887. {
  7888. subctx.selectElse(cond);
  7889. creator.beginCondition(subctx);
  7890. doBuildAssignHashElement(subctx, creator, elseValue);
  7891. creator.endCondition(subctx);
  7892. }
  7893. return;
  7894. }
  7895. case no_constant:
  7896. return;
  7897. }
  7898. }
  7899. Linked<ITypeInfo> type = elem->queryType()->queryPromotedType(); // skip alien data types, to logical type.
  7900. if (type->getTypeCode() == type_row)
  7901. {
  7902. doBuildAssignHashElement(ctx, creator, elem, elem->queryRecord());
  7903. return;
  7904. }
  7905. IIdAtom * func=NULL;
  7906. switch (creator.kind())
  7907. {
  7908. case no_hash: func = hashDataId; break;
  7909. case no_hash32: func = hash32DataId; break;
  7910. case no_hash64: func = hash64DataId; break;
  7911. case no_crc: func = crcDataId; break;
  7912. }
  7913. CHqlBoundExpr bound;
  7914. OwnedHqlExpr length;
  7915. OwnedHqlExpr ptr;
  7916. bool alreadyTrimmedRight = (elem->getOperator() == no_trim) && (elem->hasAttribute(rightAtom) || !elem->hasAttribute(leftAtom));
  7917. //If this hash is generated internally (e.g., for a dedup) and fixed length, then can simplify the hash calculation
  7918. bool canOptimizeHash = (creator.optimize() && isFixedSize(type));
  7919. bool optimizeTrim = alreadyTrimmedRight || canOptimizeHash;
  7920. switch (type->getTypeCode())
  7921. {
  7922. case type_string:
  7923. {
  7924. if (!optimizeTrim)
  7925. {
  7926. OwnedHqlExpr trimmed = createValue(no_trim, getStretchedType(UNKNOWN_LENGTH, type), LINK(elem));
  7927. buildCachedExpr(ctx, trimmed, bound);
  7928. }
  7929. else
  7930. buildCachedExpr(ctx, elem, bound);
  7931. length.setown(getBoundLength(bound));
  7932. ptr.setown(getElementPointer(bound.expr));
  7933. }
  7934. break;
  7935. case type_unicode:
  7936. {
  7937. if (!optimizeTrim)
  7938. {
  7939. OwnedHqlExpr trimmed = createValue(no_trim, getStretchedType(UNKNOWN_LENGTH, type), LINK(elem));
  7940. buildCachedExpr(ctx, trimmed, bound);
  7941. }
  7942. else
  7943. buildCachedExpr(ctx, elem, bound);
  7944. length.setown(getBoundLength(bound));
  7945. ptr.setown(getElementPointer(bound.expr));
  7946. switch (creator.kind())
  7947. {
  7948. case no_hash: func = hashUnicodeId; break;
  7949. case no_hash32: func = hash32UnicodeId; break;
  7950. case no_hash64: func = hash64UnicodeId; break;
  7951. case no_crc: func = crcUnicodeId; break;
  7952. }
  7953. }
  7954. break;
  7955. case type_utf8:
  7956. {
  7957. if (!optimizeTrim)
  7958. {
  7959. OwnedHqlExpr trimmed = createValue(no_trim, getStretchedType(UNKNOWN_LENGTH, type), LINK(elem));
  7960. buildCachedExpr(ctx, trimmed, bound);
  7961. }
  7962. else
  7963. buildCachedExpr(ctx, elem, bound);
  7964. length.setown(getBoundLength(bound));
  7965. ptr.setown(getElementPointer(bound.expr));
  7966. switch (creator.kind())
  7967. {
  7968. case no_hash: func = hashUtf8Id; break;
  7969. case no_hash32: func = hash32Utf8Id; break;
  7970. case no_hash64: func = hash64Utf8Id; break;
  7971. case no_crc: func = crcUtf8Id; break;
  7972. }
  7973. }
  7974. break;
  7975. case type_data:
  7976. {
  7977. buildCachedExpr(ctx, elem, bound);
  7978. length.setown(getBoundLength(bound));
  7979. ptr.setown(getElementPointer(bound.expr));
  7980. break;
  7981. }
  7982. case type_qstring:
  7983. {
  7984. LinkedHqlExpr exprToHash = elem;
  7985. if (!canOptimizeHash)
  7986. {
  7987. //Always convert to a string so the hash is compatible with a string.
  7988. OwnedHqlExpr cast = ensureExprType(elem, unknownStringType);
  7989. if (alreadyTrimmedRight)
  7990. {
  7991. exprToHash.set(cast);
  7992. }
  7993. else
  7994. {
  7995. OwnedHqlExpr trimmed = createValue(no_trim, LINK(unknownStringType), LINK(cast));
  7996. exprToHash.setown(foldHqlExpression(trimmed));
  7997. }
  7998. }
  7999. buildCachedExpr(ctx, exprToHash, bound);
  8000. length.setown(getBoundSize(bound));
  8001. ptr.setown(getElementPointer(bound.expr));
  8002. break;
  8003. }
  8004. case type_varstring:
  8005. buildCachedExpr(ctx, elem, bound);
  8006. ptr.setown(getElementPointer(bound.expr));
  8007. switch (creator.kind())
  8008. {
  8009. case no_hash: func = hashVStrId; break;
  8010. case no_hash32: func = hash32VStrId; break;
  8011. case no_hash64: func = hash64VStrId; break;
  8012. case no_crc: func = crcVStrId; break;
  8013. }
  8014. break;
  8015. case type_varunicode:
  8016. buildCachedExpr(ctx, elem, bound);
  8017. ptr.setown(getElementPointer(bound.expr));
  8018. switch (creator.kind())
  8019. {
  8020. case no_hash: func = hashVUnicodeId; break;
  8021. case no_hash32: func = hash32VUnicodeId; break;
  8022. case no_hash64: func = hash64VUnicodeId; break;
  8023. case no_crc: func = crcVUnicodeId; break;
  8024. }
  8025. break;
  8026. case type_boolean:
  8027. case type_int:
  8028. case type_swapint:
  8029. case type_real:
  8030. if (creator.optimize() && hasAddress(ctx, elem))
  8031. {
  8032. buildAddress(ctx, elem, bound);
  8033. length.setown(getSizetConstant(type->getSize()));
  8034. ptr.setown(LINK(bound.expr));
  8035. }
  8036. else
  8037. {
  8038. if (!creator.optimize())
  8039. type.setown(makeIntType(8, true));
  8040. OwnedHqlExpr castElem = ensureExprType(elem, type);
  8041. buildTempExpr(ctx, castElem, bound);
  8042. length.setown(getSizetConstant(type->getSize()));
  8043. ptr.setown(getPointer(bound.expr));
  8044. }
  8045. break;
  8046. case type_row:
  8047. throwUnexpected();
  8048. break;
  8049. case type_dictionary:
  8050. case type_groupedtable:
  8051. case type_table:
  8052. //MORE: Should be handle this differently, with an iterator for the link counted rows case?
  8053. //Not sure if that is a good idea - we need to be certain we get the same values with
  8054. //LCR rows enabled and disabled. But this won't be very efficient with lcr rows.
  8055. //fallthrough
  8056. if (creator.optimize() && hasOutOfLineRows(elem->queryType()))
  8057. {
  8058. creator.beginCondition(ctx);
  8059. BuildCtx iterctx(ctx);
  8060. BoundRow * row = buildDatasetIterate(iterctx, elem, false);
  8061. doBuildAssignHashElement(iterctx, creator, elem->queryNormalizedSelector(), elem->queryRecord());
  8062. creator.endCondition(iterctx);
  8063. return;
  8064. }
  8065. else
  8066. {
  8067. OwnedHqlExpr serialized = ::ensureSerialized(elem, diskAtom);
  8068. buildDataset(ctx, serialized, bound, FormatBlockedDataset);
  8069. length.setown(getBoundSize(bound));
  8070. ptr.setown(getPointer(bound.expr));
  8071. }
  8072. break;
  8073. default:
  8074. buildTempExpr(ctx, elem, bound, FormatBlockedDataset);
  8075. length.setown(getBoundSize(bound));
  8076. ptr.setown(getPointer(bound.expr));
  8077. break;
  8078. }
  8079. creator.buildHash(ctx, func, length, ptr);
  8080. }
  8081. //---------------------------------------------------------------------------
  8082. //-- no_hash --
  8083. void HqlCppTranslator::doBuildAssignHashMd5(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  8084. {
  8085. IHqlExpression * child = expr->queryChild(0);
  8086. ITypeInfo * childType = child->queryType();
  8087. Owned<ITypeInfo> stateType = makeDataType(sizeof(md5_state_s));
  8088. //initialize the state object
  8089. CHqlBoundTarget stateTemp;
  8090. CHqlBoundExpr state;
  8091. createTempFor(ctx, stateType, stateTemp, typemod_none, FormatNatural);
  8092. state.setFromTarget(stateTemp);
  8093. OwnedHqlExpr stateExpr = state.getTranslatedExpr();
  8094. HqlExprArray args;
  8095. args.append(*LINK(stateExpr));
  8096. OwnedHqlExpr callInit = bindFunctionCall(hashMd5InitId, args);
  8097. buildStmt(ctx, callInit);
  8098. //Now hash each of the elements in turn.
  8099. if (child->getOperator() != no_sortlist)
  8100. doBuildHashMd5Element(ctx, child, state);
  8101. else
  8102. {
  8103. unsigned max = child->numChildren();
  8104. for (unsigned idx = 0; idx < max; idx++)
  8105. doBuildHashMd5Element(ctx, child->queryChild(idx), state);
  8106. }
  8107. //finalise the md5, and get the result.
  8108. args.append(*LINK(stateExpr));
  8109. OwnedHqlExpr callFinish = bindFunctionCall(hashMd5FinishId, args);
  8110. buildExprAssign(ctx, target, callFinish);
  8111. }
  8112. void HqlCppTranslator::doBuildHashMd5Element(BuildCtx & ctx, IHqlExpression * elem, CHqlBoundExpr & state)
  8113. {
  8114. CHqlBoundExpr bound;
  8115. Linked<ITypeInfo> type = elem->queryType()->queryPromotedType(); // skip alien data types, to logical type.
  8116. HqlExprArray args;
  8117. switch (type->getTypeCode())
  8118. {
  8119. case type_string:
  8120. case type_unicode:
  8121. case type_data:
  8122. case type_qstring:
  8123. case type_varstring:
  8124. case type_varunicode:
  8125. case type_utf8:
  8126. buildExpr(ctx, elem, bound);
  8127. args.append(*getBoundSize(bound));
  8128. args.append(*getElementPointer(bound.expr));
  8129. break;
  8130. case type_int:
  8131. case type_swapint:
  8132. case type_packedint:
  8133. {
  8134. type.setown(makeIntType(8, true));
  8135. OwnedHqlExpr castElem = ensureExprType(elem, type);
  8136. buildTempExpr(ctx, castElem, bound);
  8137. args.append(*getSizetConstant(type->getSize()));
  8138. args.append(*getPointer(bound.expr));
  8139. break;
  8140. }
  8141. default:
  8142. buildTempExpr(ctx, elem, bound);
  8143. args.append(*getSizetConstant(type->getSize()));
  8144. args.append(*getPointer(bound.expr));
  8145. break;
  8146. }
  8147. args.append(*getBoundSize(state));
  8148. args.append(*LINK(state.expr));
  8149. OwnedHqlExpr call = bindTranslatedFunctionCall(hashMd5DataId, args);
  8150. ctx.addExpr(call);
  8151. }
  8152. //---------------------------------------------------------------------------
  8153. void HqlCppTranslator::doBuildExprTransfer(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  8154. {
  8155. CHqlBoundExpr bound;
  8156. //Ensure the bound result has an address
  8157. IHqlExpression * src = expr->queryChild(0);
  8158. bool gotAddress = false;
  8159. if (src->isDataset())
  8160. {
  8161. buildDataset(ctx, src, bound, FormatBlockedDataset);
  8162. bound.expr.setown(getPointer(bound.expr));
  8163. }
  8164. else if (src->isDatarow())
  8165. {
  8166. Owned<IReferenceSelector> ref = buildNewRow(ctx, src);
  8167. ref->get(ctx, bound);
  8168. bound.expr.setown(getPointer(bound.expr));
  8169. }
  8170. else if (isTypePassedByAddress(src->queryType()))
  8171. buildCachedExpr(ctx, src, bound);
  8172. else if (hasAddress(ctx, src))
  8173. {
  8174. buildAddress(ctx, src, bound);
  8175. gotAddress = true;
  8176. }
  8177. else
  8178. buildTempExpr(ctx, src, bound);
  8179. OwnedITypeInfo from = bound.expr->getType();
  8180. ITypeInfo * to = expr->queryType();
  8181. //Must calculate the size of the bound value before we start messing about with stripping casts etc.
  8182. OwnedHqlExpr size;
  8183. if (to->getSize() == UNKNOWN_LENGTH)
  8184. {
  8185. if (from->getSize() == UNKNOWN_LENGTH)
  8186. size.setown(getBoundSize(bound));
  8187. else
  8188. size.setown(getSizetConstant(from->getSize()));
  8189. }
  8190. if (!isTypePassedByAddress(from) && !gotAddress)
  8191. bound.expr.setown(getAddress(bound.expr));
  8192. //strip unnecessary casts...
  8193. while (bound.expr->getOperator() == no_implicitcast)
  8194. bound.expr.set(bound.expr->queryChild(0));
  8195. if (isTypePassedByAddress(to))
  8196. {
  8197. to->Link();
  8198. if (!to->isReference())
  8199. to = makeReferenceModifier(to);
  8200. tgt.expr.setown(createValue(no_implicitcast, to, LINK(bound.expr)));
  8201. if (to->getSize() == UNKNOWN_LENGTH)
  8202. {
  8203. switch (to->getTypeCode())
  8204. {
  8205. case type_unicode:
  8206. if (size->isConstant())
  8207. tgt.length.setown(getSizetConstant((size32_t)getIntValue(size)/sizeof(UChar)));
  8208. else
  8209. tgt.length.setown(createValue(no_div, LINK(sizetType), LINK(size), getSizetConstant(2)));
  8210. break;
  8211. case type_qstring:
  8212. if (size->isConstant())
  8213. tgt.length.setown(getSizetConstant(rtlQStrLength((size32_t)getIntValue(size))));
  8214. else
  8215. tgt.length.setown(createValue(no_div, LINK(sizetType), multiplyValue(size, 4), getSizetConstant(3)));
  8216. break;
  8217. case type_varstring:
  8218. case type_varunicode:
  8219. break;
  8220. default:
  8221. tgt.length.set(size);
  8222. break;
  8223. }
  8224. }
  8225. }
  8226. else
  8227. {
  8228. tgt.length.clear();
  8229. tgt.expr.set(bound.expr);
  8230. if (hasWrapperModifier(tgt.expr->queryType()))
  8231. tgt.expr.setown(createValue(no_implicitcast, makeReferenceModifier(LINK(queryUnqualifiedType(from))), LINK(tgt.expr)));
  8232. tgt.expr.setown(createValue(no_implicitcast, makePointerType(LINK(to)), tgt.expr.getClear()));
  8233. tgt.expr.setown(createValue(no_deref, LINK(to), tgt.expr.getClear()));
  8234. }
  8235. }
  8236. //---------------------------------------------------------------------------
  8237. //-- no_ordered
  8238. void HqlCppTranslator::doBuildExprOrdered(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  8239. {
  8240. if (ctx.getMatchExpr(expr, tgt))
  8241. return;
  8242. bool ascending = true;
  8243. OwnedHqlExpr list = simplifyFixedLengthList(expr->queryChild(0));
  8244. IHqlExpression * attr = expr->queryChild(1);
  8245. if (attr && attr->isAttribute() && (attr->queryName() == descAtom))
  8246. ascending = false;
  8247. if (list->numChildren() == 0)
  8248. throwError(HQLERR_RankOnNull);
  8249. //create the list that is going to be sorted
  8250. CHqlBoundExpr boundList;
  8251. OwnedHqlExpr optimalList = getOptimialListFormat(list);
  8252. buildExpr(ctx, optimalList, boundList);
  8253. //create a compare function....
  8254. ITypeInfo * elementType = boundList.expr->queryType()->queryChildType();
  8255. unsigned elementSize = elementType->getSize();
  8256. if (elementSize == UNKNOWN_LENGTH)
  8257. throwError(HQLERR_OrderOnVarlengthStrings);
  8258. StringBuffer tempName;
  8259. getUniqueId(tempName.append('v'));
  8260. IHqlExpression * tempCompare = createVariable(tempName.str(), makeVoidType());
  8261. StringBuffer s;
  8262. s.clear().append("extern int ").append(tempName).append("(const void * left, const void * right);");
  8263. if (options.spanMultipleCpp)
  8264. {
  8265. BuildCtx protoctx(*code, mainprototypesAtom);
  8266. protoctx.addQuoted(s);
  8267. }
  8268. else
  8269. {
  8270. BuildCtx protoctx(*code, prototypeAtom);
  8271. protoctx.addQuoted(s);
  8272. }
  8273. BuildCtx declareCtx(*code, declareAtom);
  8274. s.clear().append("int ").append(tempName).append("(const void * left, const void * right)");
  8275. declareCtx.addQuotedCompound(s);
  8276. Owned<ITypeInfo> argType;
  8277. if (isTypePassedByAddress(elementType) && !hasReferenceModifier(elementType))
  8278. argType.setown(makeReferenceModifier(LINK(elementType)));
  8279. else
  8280. argType.setown(makePointerType(LINK(elementType)));
  8281. OwnedHqlExpr leftAddr = createVariable("left", LINK(argType));
  8282. OwnedHqlExpr rightAddr = createVariable("right", LINK(argType));
  8283. IHqlExpression * left = convertAddressToValue(leftAddr, elementType);
  8284. IHqlExpression * right = convertAddressToValue(rightAddr, elementType);
  8285. if (elementType->isReference())
  8286. elementSize = sizeof(char * *);
  8287. left = createTranslatedOwned(left);
  8288. right = createTranslatedOwned(right);
  8289. OwnedHqlExpr compare;
  8290. if (ascending)
  8291. compare.setown(createValue(no_order, LINK(signedType), left, right));
  8292. else
  8293. compare.setown(createValue(no_order, LINK(signedType), right, left));
  8294. CHqlBoundExpr boundCompare;
  8295. buildExpr(declareCtx, compare, boundCompare);
  8296. declareCtx.setNextDestructor();
  8297. declareCtx.addReturn(boundCompare.expr);
  8298. //Allocate an array to store the orders
  8299. unsigned max = list->numChildren();
  8300. Owned<ITypeInfo> t = makeArrayType(LINK(unsignedType), max);
  8301. IHqlExpression * table = ctx.getTempDeclare(t, NULL);
  8302. ctx.associateExpr(expr, table);
  8303. //Generate the call to the function that calculates the orders
  8304. IHqlExpression * castCompare = createValue(no_implicitcast, makePointerType(makeVoidType()), tempCompare);
  8305. HqlExprArray args;
  8306. args.append(*getPointer(table));
  8307. args.append(*getPointer(boundList.expr));
  8308. args.append(*createConstant(unsignedType->castFrom(false, max)));
  8309. args.append(*getSizetConstant(elementSize));
  8310. args.append(*castCompare);
  8311. callProcedure(ctx, createOrderId, args);
  8312. tgt.expr.setown(table);
  8313. }
  8314. //---------------------------------------------------------------------------
  8315. //-- no_rank
  8316. void checkRankRange(IHqlExpression * index, IHqlExpression * list)
  8317. {
  8318. IValue * indexValue = index->queryValue();
  8319. if (indexValue)
  8320. {
  8321. unsigned max = list->numChildren();
  8322. unsigned idx = (unsigned)indexValue->getIntValue();
  8323. //MORE: Should be a warning.....
  8324. if ((idx < 1) || (idx > max))
  8325. throwError(HQLERR_RankOutOfRange);
  8326. }
  8327. //MORE: Could dynamically allocate the array indexes...
  8328. if (list->getOperator() == no_getresult)
  8329. {
  8330. StringBuffer s;
  8331. IHqlExpression * sequence = queryAttributeChild(list, sequenceAtom, 0);
  8332. IHqlExpression * name = queryAttributeChild(list, namedAtom, 0);
  8333. getStoredDescription(s, sequence, name, true);
  8334. throwError1(HQLERR_RankOnStored, s.str());
  8335. }
  8336. }
  8337. void HqlCppTranslator::createOrderList(BuildCtx & ctx, IHqlExpression * expr, IHqlExpression * ascdesc, CHqlBoundExpr & tgt)
  8338. {
  8339. ITypeInfo * orderedType = makeArrayType(LINK(unsignedType), expr->numChildren());
  8340. OwnedHqlExpr ordered = createValue(no_ordered, orderedType, LINK(expr), LINK(ascdesc));
  8341. buildExpr(ctx, ordered, tgt);
  8342. }
  8343. void HqlCppTranslator::doBuildExprRank(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  8344. {
  8345. IHqlExpression * index = expr->queryChild(0);
  8346. IHqlExpression * list = expr->queryChild(1);
  8347. checkRankRange(index, list);
  8348. CHqlBoundExpr bound, boundIndex;
  8349. createOrderList(ctx, list, expr->queryChild(2), bound);
  8350. buildExpr(ctx, index, boundIndex);
  8351. HqlExprArray args;
  8352. args.append(*boundIndex.expr.getClear());
  8353. args.append(*createConstant(unsignedType->castFrom(false, list->numChildren())));
  8354. args.append(*getPointer(bound.expr));
  8355. tgt.expr.setown(bindTranslatedFunctionCall(rankFromOrderId, args));
  8356. }
  8357. //---------------------------------------------------------------------------
  8358. //-- no_ranked
  8359. void HqlCppTranslator::doBuildExprRanked(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  8360. {
  8361. IHqlExpression * index = expr->queryChild(0);
  8362. IHqlExpression * list = expr->queryChild(1);
  8363. checkRankRange(index, list);
  8364. CHqlBoundExpr bound, boundIndex;
  8365. createOrderList(ctx, list, expr->queryChild(2), bound);
  8366. buildExpr(ctx, index, boundIndex);
  8367. HqlExprArray args;
  8368. args.append(*boundIndex.expr.getClear());
  8369. args.append(*createConstant(unsignedType->castFrom(false, list->numChildren())));
  8370. args.append(*getPointer(bound.expr));
  8371. tgt.expr.setown(bindTranslatedFunctionCall(rankedFromOrderId, args));
  8372. }
  8373. //---------------------------------------------------------------------------
  8374. //-- no_fail
  8375. void HqlCppTranslator::doBuildStmtFail(BuildCtx & ctx, IHqlExpression * expr)
  8376. {
  8377. HqlExprArray args;
  8378. args.append(*getFailCode(expr));
  8379. args.append(*getFailMessage(expr, false));
  8380. IIdAtom * func = expr->hasAttribute(defaultAtom) ? sysFailId : _failId;
  8381. OwnedHqlExpr call = bindFunctionCall(func, args);
  8382. buildStmt(ctx, call);
  8383. }
  8384. void HqlCppTranslator::doBuildExprFailCode(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  8385. {
  8386. OwnedHqlExpr activeFailMarker = createAttribute(activeFailureAtom);
  8387. HqlExprAssociation * matchedMarker = ctx.queryMatchExpr(activeFailMarker);
  8388. if (!matchedMarker && !ctx.queryMatchExpr(globalContextMarkerExpr))
  8389. {
  8390. if (!buildExprInCorrectContext(ctx, expr, tgt, false))
  8391. throwError1(HQLERR_FailXUsedOutsideFailContext, getOpString(expr->getOperator()));
  8392. return;
  8393. }
  8394. HqlExprArray args;
  8395. if (matchedMarker)
  8396. {
  8397. args.append(*LINK(matchedMarker->queryExpr()));
  8398. tgt.expr.setown(bindTranslatedFunctionCall(queryLocalFailCodeId, args));
  8399. }
  8400. else
  8401. {
  8402. tgt.expr.setown(bindTranslatedFunctionCall(queryFailCodeId, args));
  8403. }
  8404. }
  8405. void HqlCppTranslator::doBuildAssignFailMessage(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  8406. {
  8407. OwnedHqlExpr activeFailMarker = createAttribute(activeFailureAtom);
  8408. HqlExprAssociation * matchedMarker = ctx.queryMatchExpr(activeFailMarker);
  8409. if (!matchedMarker && !ctx.queryMatchExpr(globalContextMarkerExpr))
  8410. {
  8411. CHqlBoundExpr match;
  8412. if (!buildExprInCorrectContext(ctx, expr, match, false))
  8413. throwError1(HQLERR_FailXUsedOutsideFailContext, getOpString(expr->getOperator()));
  8414. assign(ctx, target, match);
  8415. return;
  8416. }
  8417. IIdAtom * func = getFailMessageId;
  8418. HqlExprArray args;
  8419. if (matchedMarker)
  8420. {
  8421. func = getLocalFailMessageId;
  8422. args.append(*createTranslated(matchedMarker->queryExpr()));
  8423. }
  8424. LinkedHqlExpr tag = expr->queryChild(0);
  8425. if (!tag)
  8426. tag.setown(createQuoted("0", makeConstantModifier(makeReferenceModifier(makeVarStringType(UNKNOWN_LENGTH, 0, 0)))));
  8427. args.append(*LINK(tag));
  8428. OwnedHqlExpr call = bindFunctionCall(func, args);
  8429. buildExprAssign(ctx, target, call);
  8430. }
  8431. void HqlCppTranslator::doBuildAssignEventName(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  8432. {
  8433. HqlExprArray args;
  8434. OwnedHqlExpr call = bindFunctionCall(getEventNameId, args);
  8435. buildExprAssign(ctx, target, call);
  8436. }
  8437. void HqlCppTranslator::doBuildAssignEventExtra(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  8438. {
  8439. LinkedHqlExpr tag = expr->queryChild(0);
  8440. if (!tag)
  8441. tag.setown(createQuoted("0", makeConstantModifier(makeReferenceModifier(makeVarStringType(UNKNOWN_LENGTH, 0, 0)))));
  8442. HqlExprArray args;
  8443. args.append(*LINK(tag));
  8444. OwnedHqlExpr call = bindFunctionCall(getEventExtraId, args);
  8445. buildExprAssign(ctx, target, call);
  8446. }
  8447. //---------------------------------------------------------------------------
  8448. //-- system call e.g. EXP(), LOG()...
  8449. void HqlCppTranslator::doBuildExprSysFunc(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt, IIdAtom * funcName)
  8450. {
  8451. HqlExprArray args;
  8452. ForEachChild(i, expr)
  8453. {
  8454. IHqlExpression * cur = expr->queryChild(i);
  8455. if (!cur->isAttribute())
  8456. args.append(*LINK(cur));
  8457. }
  8458. OwnedHqlExpr call = bindFunctionCall(funcName, args);
  8459. buildExpr(ctx, call, tgt);
  8460. }
  8461. void HqlCppTranslator::doBuildExprOffsetOf(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  8462. {
  8463. if (ctx.getMatchExpr(expr, tgt))
  8464. return;
  8465. IHqlExpression * arg = expr->queryChild(0);
  8466. Owned<IReferenceSelector> selector = buildActiveReference(ctx, arg);
  8467. selector->getOffset(ctx, tgt);
  8468. //cache non-constant values in a temporary variable...
  8469. if (!isSimpleLength(tgt.expr))
  8470. {
  8471. IHqlExpression * temp = ctx.getTempDeclare(expr->queryType(), tgt.expr);
  8472. tgt.expr.setown(temp);
  8473. ctx.associateExpr(expr, tgt);
  8474. }
  8475. }
  8476. //---------------------------------------------------------------------------
  8477. //-- no_subselect --
  8478. void HqlCppTranslator::doBuildAssignSubString(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  8479. {
  8480. if (expr->queryChild(1)->getOperator() == no_rangecommon)
  8481. throwError(HQLERR_StarRangeOnlyInJoinCondition);
  8482. ITypeInfo * resultType = expr->queryType();
  8483. ITypeInfo * targetType = target.queryType();
  8484. type_t rtc = resultType->getTypeCode();
  8485. type_t ttc = targetType->getTypeCode();
  8486. SubStringInfo info(expr);
  8487. CHqlBoundExpr newBound;
  8488. bool doneAssign = false;
  8489. if (info.special)
  8490. doBuildExprSpecialSubString(ctx, info, newBound);
  8491. else if (info.infiniteString)
  8492. doBuildExprInfiniteSubString(ctx, info, newBound);
  8493. if (!newBound.expr)
  8494. {
  8495. IIdAtom * func = NULL;
  8496. type_t stc = info.src->queryType()->getTypeCode();
  8497. if (target.isFixedSize())
  8498. {
  8499. switch (ttc)
  8500. {
  8501. case type_qstring:
  8502. if (stc == type_qstring)
  8503. func = subQStrFTId;
  8504. break;
  8505. case type_data:
  8506. switch (stc)
  8507. {
  8508. case type_data:
  8509. case type_string:
  8510. case type_varstring:
  8511. func = subDataFTId;
  8512. break;
  8513. }
  8514. break;
  8515. case type_string:
  8516. switch (stc)
  8517. {
  8518. case type_data:
  8519. func = subDataFTId;
  8520. break;
  8521. case type_string:
  8522. case type_varstring:
  8523. if (resultType->queryCharset() == info.src->queryType()->queryCharset())
  8524. func = subStrFTId;
  8525. break;
  8526. }
  8527. break;
  8528. }
  8529. if (!func && (queryUnqualifiedType(resultType) != queryUnqualifiedType(targetType)))
  8530. {
  8531. CHqlBoundExpr bound;
  8532. buildTempExpr(ctx, expr, bound);
  8533. assign(ctx, target, bound);
  8534. return;
  8535. }
  8536. }
  8537. CHqlBoundExpr boundSrc;
  8538. buildCachedExpr(ctx, info.src, boundSrc);
  8539. info.bindToFrom(*this, ctx);
  8540. ITypeInfo * sourceType = boundSrc.queryType();
  8541. if (!info.boundFrom.expr)
  8542. info.boundFrom.expr.setown(getSizetConstant(1));
  8543. //Some hacks to force the parameters/return values to the same type. It could be solved more cleanly,
  8544. //but with more functions by calling different functions instead.
  8545. CHqlBoundTarget tempTarget;
  8546. tempTarget.set(target);
  8547. switch (rtc)
  8548. {
  8549. case type_string:
  8550. if (resultType->queryCollation()->queryName() != asciiAtom)
  8551. {
  8552. unsigned sourceLen = boundSrc.queryType()->getStringLen();
  8553. boundSrc.expr.setown(createValue(no_typetransfer, makeStringType(sourceLen, NULL, NULL), LINK(boundSrc.expr)));
  8554. OwnedITypeInfo newTargetType = makeStringType(targetType->getStringLen(), NULL, NULL);
  8555. tempTarget.expr.setown(createValue(no_typetransfer, cloneModifiers(targetType, newTargetType), LINK(tempTarget.expr)));
  8556. }
  8557. break;
  8558. }
  8559. HqlExprArray args;
  8560. args.append(*boundSrc.getTranslatedExpr());
  8561. args.append(*info.boundFrom.getTranslatedExpr());
  8562. if (func)
  8563. {
  8564. args.add(*createTranslated(tempTarget.expr), 0);
  8565. if (info.boundTo.expr)
  8566. args.append(*info.boundTo.getTranslatedExpr());
  8567. else
  8568. args.append(*createConstant(unsignedType->castFrom(false, 0x7fffffff)));
  8569. OwnedHqlExpr call = bindFunctionCall(func, args);
  8570. buildStmt(ctx, call);
  8571. }
  8572. else
  8573. {
  8574. if (info.boundTo.expr)
  8575. {
  8576. args.append(*info.boundTo.getTranslatedExpr());
  8577. switch (rtc)
  8578. {
  8579. case type_qstring:
  8580. func = subQStrFTXId;
  8581. break;
  8582. case type_data:
  8583. func = subDataFTXId;
  8584. break;
  8585. case type_unicode:
  8586. case type_varunicode:
  8587. func = unicodeSubStrFTXId;
  8588. break;
  8589. case type_utf8:
  8590. func = utf8SubStrFTXId;
  8591. break;
  8592. default:
  8593. func = subStrFTXId;
  8594. break;
  8595. }
  8596. }
  8597. else
  8598. {
  8599. switch (rtc)
  8600. {
  8601. case type_qstring:
  8602. func = subQStrFXId;
  8603. break;
  8604. case type_data:
  8605. func = subDataFXId;
  8606. break;
  8607. case type_unicode:
  8608. case type_varunicode:
  8609. func = unicodeSubStrFXId;
  8610. break;
  8611. case type_utf8:
  8612. func = utf8SubStrFXId;
  8613. break;
  8614. default:
  8615. func = subStrFXId;
  8616. break;
  8617. }
  8618. }
  8619. OwnedHqlExpr call = bindFunctionCall(func, args);
  8620. buildExprAssign(ctx, tempTarget, call);
  8621. }
  8622. doneAssign = true;
  8623. }
  8624. if (!doneAssign)
  8625. assign(ctx, target, newBound);
  8626. }
  8627. bool HqlCppTranslator::doBuildExprSpecialSubString(BuildCtx & ctx, SubStringInfo & info, CHqlBoundExpr & tgt)
  8628. {
  8629. unsigned size = info.srcType->getStringLen();
  8630. unsigned fromIndex = info.fixedStart;
  8631. unsigned toIndex = info.fixedEnd;
  8632. //If substring is larger than the source use the default processing.
  8633. if (toIndex <= size)
  8634. {
  8635. CHqlBoundExpr boundSrc;
  8636. buildCachedExpr(ctx, info.src, boundSrc);
  8637. boundSrc.expr.setown(getIndexedElementPointer(boundSrc.expr, fromIndex-1));
  8638. unsigned newLength = fromIndex <= toIndex ? toIndex-(fromIndex-1) : 0;
  8639. ITypeInfo * newType = makeReferenceModifier(getStretchedType(newLength, info.srcType));
  8640. tgt.expr.setown(createValue(no_typetransfer, newType, boundSrc.expr.getClear()));
  8641. if (info.expr->queryType()->getStringLen() != newLength)
  8642. tgt.length.setown(getSizetConstant(newLength));
  8643. return true;
  8644. }
  8645. return false;
  8646. }
  8647. bool HqlCppTranslator::doBuildExprInfiniteSubString(BuildCtx & ctx, SubStringInfo & info, CHqlBoundExpr & tgt)
  8648. {
  8649. CHqlBoundExpr boundSrc;
  8650. info.bindToFrom(*this, ctx);
  8651. buildCachedExpr(ctx, info.src, boundSrc);
  8652. IHqlExpression * from = info.from;
  8653. if (info.fixedStart == 1)
  8654. from = NULL;
  8655. IHqlExpression * start = from ? adjustValue(info.boundFrom.expr, -1) : NULL;
  8656. tgt.expr.setown(getIndexedElementPointer(boundSrc.expr, start));
  8657. //ensure type is no longer infinite length, so same optimization does not happen again...
  8658. ITypeInfo * newType = makeReferenceModifier(getStretchedType(UNKNOWN_LENGTH, tgt.expr->queryType()));
  8659. tgt.expr.setown(createValue(no_typetransfer, newType, tgt.expr.getLink()));
  8660. OwnedHqlExpr length;
  8661. if (start && !isZero(start))
  8662. length.setown(createValue(no_sub, info.boundTo.expr.getLink(), LINK(start)));
  8663. else
  8664. length.setown(info.boundTo.expr.getLink());
  8665. tgt.length.setown(ensureExprType(length, sizetType));
  8666. ::Release(start);
  8667. return true;
  8668. }
  8669. void HqlCppTranslator::doBuildExprAnySubString(BuildCtx & ctx, SubStringInfo & info, CHqlBoundExpr & tgt)
  8670. {
  8671. CHqlBoundExpr boundSource;
  8672. buildCachedExpr(ctx, info.src, boundSource);
  8673. info.bindToFrom(*this, ctx);
  8674. OwnedHqlExpr from;
  8675. if (info.from)
  8676. {
  8677. OwnedHqlExpr start = adjustValue(info.boundFrom.expr, -1);
  8678. if (!isZero(start))
  8679. {
  8680. HqlExprArray args;
  8681. args.append(*LINK(start));
  8682. args.append(*getBoundLength(boundSource));
  8683. OwnedHqlExpr call = bindTranslatedFunctionCall(rtlMinId, args);
  8684. call.setown(createTranslated(call));
  8685. CHqlBoundExpr fromVar;
  8686. buildTempExpr(ctx, call, fromVar);
  8687. from.set(fromVar.expr);
  8688. }
  8689. }
  8690. OwnedHqlExpr to;
  8691. if (info.to)
  8692. {
  8693. OwnedHqlExpr toExpr = LINK(info.boundTo.expr);
  8694. if (from)
  8695. {
  8696. HqlExprArray args;
  8697. args.append(*LINK(toExpr));
  8698. args.append(*LINK(from));
  8699. toExpr.setown(bindTranslatedFunctionCall(rtlMaxId, args));
  8700. }
  8701. HqlExprArray args;
  8702. args.append(*LINK(toExpr));
  8703. args.append(*getBoundLength(boundSource));
  8704. to.setown(bindTranslatedFunctionCall(rtlMinId, args));
  8705. }
  8706. else
  8707. to.setown(getBoundLength(boundSource));
  8708. boundSource.expr.setown(getIndexedElementPointer(boundSource.expr, from));
  8709. ITypeInfo * newType = makeReferenceModifier(info.expr->getType());
  8710. tgt.expr.setown(createValue(no_typetransfer, newType, boundSource.expr.getClear()));
  8711. if (from && !isZero(from))
  8712. tgt.length.setown(createValue(no_sub, LINK(sizetType), LINK(to), LINK(from)));
  8713. else
  8714. tgt.length.set(to);
  8715. }
  8716. void HqlCppTranslator::doBuildExprSubString(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  8717. {
  8718. if (expr->queryChild(1)->getOperator() == no_rangecommon)
  8719. throwError(HQLERR_StarRangeOnlyInJoinCondition);
  8720. /* Optimize string[start..end] into a type transfer where appropriate */
  8721. SubStringInfo info(expr);
  8722. if (info.special)
  8723. if (doBuildExprSpecialSubString(ctx, info, tgt))
  8724. return;
  8725. if (info.infiniteString)
  8726. if (doBuildExprInfiniteSubString(ctx, info, tgt))
  8727. return;
  8728. if (expr->hasAttribute(quickAtom))
  8729. {
  8730. doBuildExprAnySubString(ctx, info, tgt);
  8731. return;
  8732. }
  8733. buildTempExpr(ctx, expr, tgt);
  8734. }
  8735. //---------------------------------------------------------------------------
  8736. //-- no_trim --
  8737. void HqlCppTranslator::doBuildAssignTrim(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  8738. {
  8739. IHqlExpression * str = expr->queryChild(0);
  8740. IIdAtom * func;
  8741. bool hasAll = expr->hasAttribute(allAtom);
  8742. bool hasLeft = expr->hasAttribute(leftAtom);
  8743. bool hasRight = expr->hasAttribute(rightAtom);
  8744. if (str->queryType()->getTypeCode() == type_varstring)
  8745. {
  8746. if(hasAll)
  8747. func = trimVAllId;
  8748. else if(hasLeft && hasRight)
  8749. func = trimVBothId;
  8750. else if(hasLeft)
  8751. func = trimVLeftId;
  8752. else
  8753. func = trimVRightId;
  8754. }
  8755. else if(str->queryType()->getTypeCode() == type_unicode)
  8756. {
  8757. if(hasAll)
  8758. func = trimUnicodeAllId;
  8759. else if(hasLeft && hasRight)
  8760. func = trimUnicodeBothId;
  8761. else if(hasLeft)
  8762. func = trimUnicodeLeftId;
  8763. else
  8764. func = trimUnicodeRightId;
  8765. }
  8766. else if(str->queryType()->getTypeCode() == type_varunicode)
  8767. {
  8768. if(hasAll)
  8769. func = trimVUnicodeAllId;
  8770. else if(hasLeft && hasRight)
  8771. func = trimVUnicodeBothId;
  8772. else if(hasLeft)
  8773. func = trimVUnicodeLeftId;
  8774. else
  8775. func = trimVUnicodeRightId;
  8776. }
  8777. else if(str->queryType()->getTypeCode() == type_utf8)
  8778. {
  8779. if(hasAll)
  8780. func = trimUtf8AllId;
  8781. else if(hasLeft && hasRight)
  8782. func = trimUtf8BothId;
  8783. else if(hasLeft)
  8784. func = trimUtf8LeftId;
  8785. else
  8786. func = trimUtf8RightId;
  8787. }
  8788. else
  8789. {
  8790. if(hasAll)
  8791. func = trimAllId;
  8792. else if(hasLeft && hasRight)
  8793. func = trimBothId;
  8794. else if(hasLeft)
  8795. func = trimLeftId;
  8796. else
  8797. func = trimRightId;
  8798. }
  8799. HqlExprArray args;
  8800. args.append(*LINK(str));
  8801. OwnedHqlExpr call = bindFunctionCall(func, args);
  8802. buildExprAssign(ctx, target, call);
  8803. }
  8804. void HqlCppTranslator::doBuildExprTrim(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  8805. {
  8806. // MORE - support LEFT,RIGHT,ALL attributes
  8807. CHqlBoundExpr bound;
  8808. buildSimpleExpr(ctx, expr->queryChild(0), bound);
  8809. HqlExprArray args;
  8810. IIdAtom * func;
  8811. OwnedHqlExpr str = getElementPointer(bound.expr);
  8812. bool hasAll = expr->hasAttribute(allAtom);
  8813. bool hasLeft = expr->hasAttribute(leftAtom);
  8814. bool hasRight = expr->hasAttribute(rightAtom);
  8815. type_t btc = bound.expr->queryType()->getTypeCode();
  8816. if(hasAll || hasLeft)
  8817. {
  8818. if (btc == type_varstring)
  8819. {
  8820. if(hasAll) {
  8821. func = trimVAllId;
  8822. }
  8823. else if(hasLeft && hasRight) {
  8824. func = trimVBothId;
  8825. }
  8826. else {
  8827. func = trimVLeftId;
  8828. }
  8829. }
  8830. else if (btc == type_unicode)
  8831. {
  8832. if(hasAll) {
  8833. func = trimUnicodeAllId;
  8834. }
  8835. else if(hasLeft && hasRight) {
  8836. func = trimUnicodeBothId;
  8837. }
  8838. else {
  8839. func = trimUnicodeLeftId;
  8840. }
  8841. }
  8842. else if (btc == type_varunicode)
  8843. {
  8844. if(hasAll) {
  8845. func = trimVUnicodeAllId;
  8846. }
  8847. else if(hasLeft && hasRight) {
  8848. func = trimVUnicodeBothId;
  8849. }
  8850. else {
  8851. func = trimVUnicodeLeftId;
  8852. }
  8853. }
  8854. else if (btc == type_utf8)
  8855. {
  8856. if(hasAll) {
  8857. func = trimUtf8AllId;
  8858. }
  8859. else if(hasLeft && hasRight) {
  8860. func = trimUtf8BothId;
  8861. }
  8862. else {
  8863. func = trimUtf8LeftId;
  8864. }
  8865. }
  8866. else
  8867. {
  8868. if(hasAll) {
  8869. func = trimAllId;
  8870. }
  8871. else if(hasLeft && hasRight) {
  8872. func = trimBothId;
  8873. }
  8874. else {
  8875. func = trimLeftId;
  8876. }
  8877. }
  8878. args.append(*bound.getTranslatedExpr());
  8879. OwnedHqlExpr call = bindFunctionCall(func, args);
  8880. buildExpr(ctx, call, tgt);
  8881. }
  8882. else {
  8883. if (btc == type_varstring)
  8884. {
  8885. args.append(*LINK(str));
  8886. func = trimVStrLenId;
  8887. }
  8888. else if (btc == type_unicode)
  8889. {
  8890. args.append(*getBoundLength(bound));
  8891. args.append(*LINK(str));
  8892. func = trimUnicodeStrLenId;
  8893. }
  8894. else if (btc == type_varunicode)
  8895. {
  8896. args.append(*LINK(str));
  8897. func = trimVUnicodeStrLenId;
  8898. }
  8899. else if (btc == type_utf8)
  8900. {
  8901. args.append(*getBoundLength(bound));
  8902. args.append(*LINK(str));
  8903. func = trimUtf8StrLenId;
  8904. }
  8905. else
  8906. {
  8907. args.append(*getBoundLength(bound));
  8908. args.append(*LINK(str));
  8909. func = trimStrLenId;
  8910. }
  8911. tgt.length.setown(bindTranslatedFunctionCall(func, args));
  8912. tgt.expr.set(str);
  8913. }
  8914. }
  8915. //---------------------------------------------------------------------------
  8916. void HqlCppTranslator::doBuildExprIsValid(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  8917. {
  8918. IHqlExpression * const value = expr->queryChild(0);
  8919. HqlExprArray args;
  8920. ITypeInfo * type = value->queryType();
  8921. assertex(type);
  8922. if (type->getTypeCode() == type_alien)
  8923. {
  8924. IHqlAlienTypeInfo * alien = queryAlienType(type);
  8925. IHqlExpression * isValidFunction = alien->queryFunction(getIsValidId);
  8926. if (isValidFunction)
  8927. {
  8928. CHqlBoundExpr bound;
  8929. buildAddress(ctx, value, bound);
  8930. OwnedITypeInfo physicalType = alien->getPhysicalType();
  8931. if (!isTypePassedByAddress(physicalType))
  8932. bound.expr.setown(createValue(no_deref, makeReferenceModifier(LINK(physicalType)), LINK(bound.expr)));
  8933. HqlExprArray args;
  8934. args.append(*bound.getTranslatedExpr());
  8935. OwnedHqlExpr test = createBoundFunction(NULL, isValidFunction, args, NULL, true);
  8936. buildExpr(ctx, test, tgt);
  8937. return;
  8938. }
  8939. else
  8940. type = alien->queryLogicalType();
  8941. }
  8942. CHqlBoundExpr bound;
  8943. buildExpr(ctx, value, bound);
  8944. type_t tc = type->getTypeCode();
  8945. if ((tc == type_decimal) && (bound.expr->getOperator() == no_decimalstack))
  8946. {
  8947. tgt.expr.setown(bindTranslatedFunctionCall(DecValidTosId, args));
  8948. return;
  8949. }
  8950. ensureHasAddress(ctx, bound);
  8951. OwnedHqlExpr address = getPointer(bound.expr);
  8952. switch (tc)
  8953. {
  8954. case type_decimal:
  8955. args.append(*createConstant(type->isSigned()));
  8956. args.append(*getSizetConstant(type->getDigits()));
  8957. args.append(*address.getLink());
  8958. tgt.expr.setown(bindTranslatedFunctionCall(DecValidId, args));
  8959. break;
  8960. case type_real:
  8961. args.append(*getSizetConstant(type->getSize()));
  8962. args.append(*address.getLink());
  8963. tgt.expr.setown(bindTranslatedFunctionCall(validRealId, args));
  8964. break;
  8965. default:
  8966. tgt.expr.set(queryBoolExpr(true));
  8967. break;
  8968. }
  8969. }
  8970. IHqlExpression * HqlCppTranslator::getConstWuid(IHqlExpression * expr)
  8971. {
  8972. SCMStringBuffer out;
  8973. wu()->getWuid(out);
  8974. OwnedHqlExpr wuid = createConstant(out.str());
  8975. return ensureExprType(wuid, expr->queryType());
  8976. }
  8977. void HqlCppTranslator::doBuildAssignWuid(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  8978. {
  8979. HqlExprArray args;
  8980. OwnedHqlExpr call = bindFunctionCall(getWuidId, args);
  8981. buildExprAssign(ctx, target, call);
  8982. }
  8983. void HqlCppTranslator::doBuildExprWuid(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  8984. {
  8985. HqlExprArray args;
  8986. OwnedHqlExpr call = bindFunctionCall(getWuidId, args);
  8987. buildTempExpr(ctx, call, tgt);
  8988. }
  8989. IHqlExpression * HqlCppTranslator::cvtGetEnvToCall(IHqlExpression * expr)
  8990. {
  8991. IHqlExpression * dft = queryRealChild(expr, 1);
  8992. HqlExprArray args;
  8993. args.append(*LINK(expr->queryChild(0)));
  8994. if (dft)
  8995. args.append(*LINK(dft));
  8996. else
  8997. args.append(*createConstant(createStringValue((const char *)NULL, 0U)));
  8998. return bindFunctionCall(getEnvId, args);
  8999. }
  9000. //---------------------------------------------------------------------------
  9001. void HqlCppTranslator::doBuildAssignToFromUnicode(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  9002. {
  9003. HqlExprArray args;
  9004. if(!target.isFixedSize())
  9005. {
  9006. args.append(*LINK(expr->queryChild(0)));
  9007. args.append(*foldHqlExpression(expr->queryChild(1)));
  9008. OwnedHqlExpr call = bindFunctionCall((expr->getOperator() == no_fromunicode) ? unicode2CodepageXId : codepage2UnicodeXId, args);
  9009. buildExprAssign(ctx, target, call);
  9010. }
  9011. else
  9012. {
  9013. args.append(*createTranslated(target.expr));
  9014. args.append(*LINK(expr->queryChild(0)));
  9015. args.append(*foldHqlExpression(expr->queryChild(1)));
  9016. OwnedHqlExpr call = bindFunctionCall((expr->getOperator() == no_fromunicode) ? unicode2CodepageId : codepage2UnicodeId, args);
  9017. buildStmt(ctx, call);
  9018. }
  9019. }
  9020. void HqlCppTranslator::doBuildExprToFromUnicode(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  9021. {
  9022. HqlExprArray args;
  9023. args.append(*LINK(expr->queryChild(0)));
  9024. args.append(*foldHqlExpression(expr->queryChild(1)));
  9025. OwnedHqlExpr call = bindFunctionCall((expr->getOperator() == no_fromunicode) ? unicode2CodepageXId : codepage2UnicodeXId, args);
  9026. buildExpr(ctx, call, tgt);
  9027. }
  9028. //---------------------------------------------------------------------------
  9029. void HqlCppTranslator::doBuildExprKeyUnicode(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  9030. {
  9031. HqlExprArray args;
  9032. args.append(*LINK(expr->queryChild(0)));
  9033. args.append(*LINK(expr->queryChild(1)));
  9034. args.append(*LINK(expr->queryChild(2)));
  9035. OwnedHqlExpr call = bindFunctionCall(keyUnicodeStrengthXId, args);
  9036. buildExpr(ctx, call, tgt);
  9037. }
  9038. //---------------------------------------------------------------------------
  9039. void HqlCppTranslator::doBuildAssignWhich(BuildCtx & ctx, const CHqlBoundTarget & target, IHqlExpression * expr)
  9040. {
  9041. BuildCtx whichCtx(ctx);
  9042. unsigned max = expr->numChildren();
  9043. unsigned idx;
  9044. bool invert = (expr->getOperator() == no_rejected);
  9045. for (idx = 0; idx < max; idx++)
  9046. {
  9047. IHqlExpression * cur = expr->queryChild(idx);
  9048. CHqlBoundExpr bound;
  9049. if (invert)
  9050. {
  9051. OwnedHqlExpr inverse = getInverse(cur);
  9052. buildExpr(whichCtx, inverse, bound);
  9053. }
  9054. else
  9055. buildExpr(whichCtx, cur, bound);
  9056. IHqlStmt * stmt = whichCtx.addFilter(bound.expr);
  9057. OwnedHqlExpr value = createConstant(target.queryType()->castFrom(false, idx+1));
  9058. assignBound(whichCtx, target, value);
  9059. whichCtx.selectElse(stmt);
  9060. }
  9061. assignBound(whichCtx, target, queryZero());
  9062. }
  9063. //---------------------------------------------------------------------------
  9064. void HqlCppTranslator::assignBound(BuildCtx & ctx, const CHqlBoundTarget & lhs, IHqlExpression * rhs)
  9065. {
  9066. CHqlBoundExpr bound;
  9067. bound.expr.set(rhs);
  9068. assign(ctx, lhs, bound);
  9069. }
  9070. void HqlCppTranslator::assignBoundToTemp(BuildCtx & ctx, IHqlExpression * lhs, IHqlExpression * rhs)
  9071. {
  9072. CHqlBoundExpr bound;
  9073. CHqlBoundTarget target;
  9074. bound.expr.set(rhs);
  9075. target.expr.set(lhs);
  9076. assign(ctx, target, bound);
  9077. }
  9078. void HqlCppTranslator::assign(BuildCtx & ctx, const CHqlBoundTarget & target, CHqlBoundExpr & rhs)
  9079. {
  9080. if (!target.isFixedSize())
  9081. {
  9082. assignCastUnknownLength(ctx, target, rhs);
  9083. return;
  9084. }
  9085. IHqlExpression * lhs = target.expr;
  9086. ITypeInfo * lType = lhs->queryType()->queryPromotedType();
  9087. if (!isSameBasicType(lType, rhs.expr->queryType()->queryPromotedType()))
  9088. assignAndCast(ctx, target, rhs);
  9089. else
  9090. {
  9091. switch (lType->getTypeCode())
  9092. {
  9093. case type_decimal:
  9094. if (isPushed(rhs))
  9095. {
  9096. IIdAtom * funcName = lType->isSigned() ? DecPopDecimalId : DecPopUDecimalId;
  9097. HqlExprArray args;
  9098. args.append(*getPointer(lhs));
  9099. args.append(*getSizetConstant(lType->getSize()));
  9100. args.append(*getSizetConstant(lType->getPrecision()));
  9101. callProcedure(ctx, funcName, args);
  9102. return;
  9103. }
  9104. buildBlockCopy(ctx, lhs, rhs);
  9105. return;
  9106. case type_string:
  9107. {
  9108. if (lType->getSize() == 1 && !options.peephole)
  9109. {
  9110. OwnedHqlExpr l1 = getFirstCharacter(lhs);
  9111. OwnedHqlExpr r1 = getFirstCharacter(rhs.expr);
  9112. ctx.addAssign(l1, r1);
  9113. }
  9114. else
  9115. buildBlockCopy(ctx, lhs, rhs);
  9116. break;
  9117. }
  9118. //fall through...
  9119. case type_unicode:
  9120. case type_data:
  9121. case type_qstring:
  9122. case type_utf8:
  9123. {
  9124. buildBlockCopy(ctx, lhs, rhs);
  9125. break;
  9126. }
  9127. case type_varstring:
  9128. {
  9129. HqlExprArray args;
  9130. args.append(*getElementPointer(lhs));
  9131. args.append(*getElementPointer(rhs.expr));
  9132. callProcedure(ctx, strcpyId, args);
  9133. break;
  9134. }
  9135. case type_varunicode:
  9136. {
  9137. HqlExprArray args;
  9138. args.append(*getElementPointer(lhs));
  9139. args.append(*getElementPointer(rhs.expr));
  9140. callProcedure(ctx, unicodeStrcpyId, args);
  9141. break;
  9142. }
  9143. case type_row:
  9144. {
  9145. if (hasWrapperModifier(target.queryType()))
  9146. {
  9147. //I can't think of any situation where this isn't true....
  9148. assertex(hasLinkCountedModifier(rhs.expr));
  9149. StringBuffer assignText;
  9150. generateExprCpp(assignText, lhs).append(".set(");
  9151. generateExprCpp(assignText, rhs.expr).append(");");
  9152. ctx.addQuoted(assignText);
  9153. //Could generate the following instead
  9154. //ctx.addAssign(lhs, no_link(rhs.expr));
  9155. //And post-optimize to the above.
  9156. }
  9157. else
  9158. ctx.addAssign(lhs, rhs.expr);
  9159. break;
  9160. }
  9161. default:
  9162. ctx.addAssign(lhs, rhs.expr);
  9163. break;
  9164. }
  9165. }
  9166. }
  9167. void HqlCppTranslator::doStringTranslation(BuildCtx & ctx, ICharsetInfo * tgtset, ICharsetInfo * srcset, unsigned tgtlen, IHqlExpression * srclen, IHqlExpression * target, IHqlExpression * src)
  9168. {
  9169. HqlExprArray args;
  9170. ITranslationInfo * translator = queryDefaultTranslation(tgtset, srcset);
  9171. if (translator)
  9172. {
  9173. IIdAtom * func = createIdAtom(translator->queryRtlFunction());
  9174. args.append(*getSizetConstant(tgtlen));
  9175. args.append(*getElementPointer(target));
  9176. args.append(*LINK(srclen));
  9177. args.append(*getElementPointer(src));
  9178. callProcedure(ctx, func, args);
  9179. }
  9180. }
  9181. void HqlCppTranslator::assignSwapInt(BuildCtx & ctx, ITypeInfo * to, const CHqlBoundTarget & target, CHqlBoundExpr & pure)
  9182. {
  9183. switch (pure.expr->getOperator())
  9184. {
  9185. case no_deref:
  9186. case no_variable:
  9187. break;
  9188. default:
  9189. {
  9190. OwnedHqlExpr translated = pure.getTranslatedExpr();
  9191. pure.clear();
  9192. buildTempExpr(ctx, translated, pure);
  9193. break;
  9194. }
  9195. }
  9196. ITypeInfo * from = pure.expr->queryType();
  9197. unsigned copySize = to->getSize();
  9198. assertex(copySize == from->getSize());
  9199. IHqlExpression * address = getRawAddress(pure.expr);
  9200. switch (copySize)
  9201. {
  9202. case 1:
  9203. ctx.addAssign(target.expr, pure.expr);
  9204. break;
  9205. default:
  9206. {
  9207. HqlExprArray args;
  9208. args.append(*address);
  9209. OwnedHqlExpr call = bindTranslatedFunctionCall(reverseIntId[copySize][to->isSigned()], args);
  9210. ctx.addAssign(target.expr, call);
  9211. break;
  9212. }
  9213. }
  9214. }
  9215. void HqlCppTranslator::throwCannotCast(ITypeInfo * from, ITypeInfo * to)
  9216. {
  9217. StringBuffer fromText, toText;
  9218. getFriendlyTypeStr(from, fromText);
  9219. getFriendlyTypeStr(to, toText);
  9220. throwError2(HQLERR_CastXNotImplemented, fromText.str(), toText.str());
  9221. }
  9222. void HqlCppTranslator::assignAndCast(BuildCtx & ctx, const CHqlBoundTarget & target, CHqlBoundExpr & pure)
  9223. {
  9224. if (!target.isFixedSize())
  9225. {
  9226. assignCastUnknownLength(ctx, target, pure);
  9227. return;
  9228. }
  9229. ITypeInfo * to = target.queryType()->queryPromotedType();
  9230. if ((pure.expr->getOperator() == no_constant) && options.foldConstantCast &&
  9231. ((options.inlineStringThreshold == 0) || (to->getSize() <= options.inlineStringThreshold)))
  9232. {
  9233. OwnedHqlExpr cast = getCastExpr(to, pure.expr);
  9234. if (cast)
  9235. {
  9236. assignBound(ctx, target, cast);
  9237. return;
  9238. }
  9239. }
  9240. //NB: Does not include variable length return types....
  9241. ITypeInfo * from = (pure.expr->queryType()->queryPromotedType());
  9242. type_t toType = to->getTypeCode();
  9243. type_t fromType = from->getTypeCode();
  9244. unsigned toSize = to->getSize();
  9245. IHqlExpression * targetVar = target.expr;
  9246. HqlExprArray args;
  9247. assertex(targetVar);
  9248. assertex(toSize != UNKNOWN_LENGTH);
  9249. switch(toType)
  9250. {
  9251. case type_qstring:
  9252. switch (fromType)
  9253. {
  9254. case type_qstring:
  9255. {
  9256. unsigned srcsize = from->getSize();
  9257. if (!pure.length && (srcsize == toSize))
  9258. {
  9259. //memcpy(tgt, src, srclen)
  9260. args.append(*getElementPointer(targetVar));
  9261. args.append(*getElementPointer(pure.expr));
  9262. args.append(*getSizetConstant(toSize));
  9263. callProcedure(ctx, memcpyId, args);
  9264. }
  9265. else
  9266. {
  9267. args.append(*getSizetConstant(to->getStringLen()));
  9268. args.append(*getElementPointer(targetVar));
  9269. args.append(*getBoundLength(pure));
  9270. args.append(*getElementPointer(pure.expr));
  9271. callProcedure(ctx, qstrToQStrId, args);
  9272. }
  9273. break;
  9274. }
  9275. case type_data:
  9276. case type_varstring:
  9277. case type_string:
  9278. {
  9279. if(!queryDefaultTranslation(to->queryCharset(), from->queryCharset()))
  9280. {
  9281. args.append(*getSizetConstant(to->getStringLen()));
  9282. args.append(*getElementPointer(targetVar));
  9283. args.append(*getBoundLength(pure));
  9284. args.append(*getElementPointer(pure.expr));
  9285. callProcedure(ctx, strToQStrId, args);
  9286. break;
  9287. }
  9288. //fall through
  9289. }
  9290. default:
  9291. //Need to go via a temporary string.
  9292. OwnedHqlExpr temp = pure.getTranslatedExpr();
  9293. buildExprAssignViaString(ctx, target, temp, to->getStringLen());
  9294. return;
  9295. }
  9296. break;
  9297. case type_data:
  9298. case type_string:
  9299. case type_varstring:
  9300. {
  9301. unsigned srclen = from->getSize();
  9302. ICharsetInfo * srcset = NULL;
  9303. ICharsetInfo * tgtset = to->queryCharset();
  9304. IIdAtom * func = NULL;
  9305. switch (fromType)
  9306. {
  9307. case type_data:
  9308. case type_string:
  9309. case type_varstring:
  9310. {
  9311. srcset = from->queryCharset();
  9312. OwnedHqlExpr boundLen = getBoundLength(pure);
  9313. if ((srcset == tgtset) || (toType == type_data) || (fromType == type_data))
  9314. {
  9315. bool doDefault = true;
  9316. if (boundLen->queryValue())
  9317. {
  9318. unsigned srclen = (unsigned)boundLen->queryValue()->getIntValue();
  9319. if (srclen >= toSize && toType != type_varstring)
  9320. {
  9321. if (srclen > toSize)
  9322. srclen = toSize;
  9323. //memcpy(tgt, src, srclen)
  9324. args.append(*getElementPointer(targetVar));
  9325. args.append(*getElementPointer(pure.expr));
  9326. args.append(*getSizetConstant(srclen));
  9327. callProcedure(ctx, memcpyId, args);
  9328. doDefault = false;
  9329. }
  9330. }
  9331. if (doDefault)
  9332. {
  9333. if (fromType == type_varstring)
  9334. {
  9335. switch (toType)
  9336. {
  9337. case type_varstring: func = vstr2VStrId; break;
  9338. case type_string: func = vstr2StrId; break;
  9339. case type_data: func = vstr2DataId; break;
  9340. default: UNIMPLEMENTED;
  9341. }
  9342. if ((toSize < srclen) || (srclen==UNKNOWN_LENGTH) || (toType != type_varstring))
  9343. {
  9344. args.append(*getSizetConstant(toSize));
  9345. args.append(*getElementPointer(targetVar));
  9346. args.append(*getElementPointer(pure.expr));
  9347. callProcedure(ctx, func, args);
  9348. }
  9349. else
  9350. {
  9351. //strcpy(tgt, src);
  9352. args.append(*getElementPointer(targetVar));
  9353. args.append(*getElementPointer(pure.expr));
  9354. callProcedure(ctx, strcpyId, args);
  9355. }
  9356. }
  9357. else
  9358. {
  9359. switch (toType)
  9360. {
  9361. case type_data:
  9362. func = str2DataId;
  9363. break;
  9364. case type_varstring:
  9365. func = str2VStrId;
  9366. break;
  9367. case type_string:
  9368. func = (srcset->queryName() == ebcdicAtom) ? estr2EStrId : str2StrId;
  9369. break;
  9370. }
  9371. args.append(*getSizetConstant(toSize));
  9372. args.append(*getElementPointer(targetVar));
  9373. args.append(*LINK(boundLen));
  9374. args.append(*getElementPointer(pure.expr));
  9375. callProcedure(ctx, func, args);
  9376. }
  9377. }
  9378. }
  9379. else
  9380. {
  9381. if ((from->getSize() == INFINITE_LENGTH) && !pure.length)
  9382. throwError(HQLERR_CastInfiniteString);
  9383. IHqlExpression * srclen;
  9384. if (toType == type_varstring)
  9385. {
  9386. srclen = getSizetConstant(toSize);
  9387. args.append(*srclen);
  9388. args.append(*getElementPointer(targetVar));
  9389. args.append(*LINK(boundLen));
  9390. args.append(*getElementPointer(pure.expr));
  9391. callProcedure(ctx, estr2VStrId, args);
  9392. }
  9393. else
  9394. doStringTranslation(ctx, tgtset, srcset, toSize, boundLen, targetVar, pure.expr);
  9395. }
  9396. }
  9397. break;
  9398. case type_qstring:
  9399. if (queryDefaultTranslation(tgtset, from->queryCharset()))
  9400. {
  9401. OwnedHqlExpr temp = pure.getTranslatedExpr();
  9402. buildExprAssignViaString(ctx, target, temp, to->getStringLen());
  9403. }
  9404. else
  9405. {
  9406. switch (toType)
  9407. {
  9408. case type_varstring: func = qstr2VStrId; break;
  9409. case type_string: func = qstr2StrId; break;
  9410. case type_data: func = qstr2DataId; break;
  9411. }
  9412. args.append(*getSizetConstant(toSize));
  9413. args.append(*getElementPointer(targetVar));
  9414. args.append(*getBoundLength(pure));
  9415. args.append(*getElementPointer(pure.expr));
  9416. callProcedure(ctx, func, args);
  9417. }
  9418. break;
  9419. case type_unicode:
  9420. case type_varunicode:
  9421. {
  9422. switch(toType)
  9423. {
  9424. case type_data:
  9425. func = (fromType == type_varunicode) ? vunicode2DataId : unicode2DataId;
  9426. break;
  9427. case type_string:
  9428. func = (fromType == type_varunicode) ? vunicode2CodepageId : unicode2CodepageId;
  9429. break;
  9430. case type_varstring:
  9431. func = (fromType == type_varunicode) ? vunicode2VCodepageId : unicode2VCodepageId;
  9432. break;
  9433. }
  9434. args.append(*getSizetConstant(toSize));
  9435. args.append(*getElementPointer(targetVar));
  9436. if(fromType != type_varunicode)
  9437. args.append(*getBoundLength(pure));
  9438. args.append(*getElementPointer(pure.expr));
  9439. if(toType != type_data)
  9440. args.append(*createConstant(to->queryCharset()->queryCodepageName()));
  9441. callProcedure(ctx, func, args);
  9442. }
  9443. break;
  9444. case type_utf8:
  9445. {
  9446. switch(toType)
  9447. {
  9448. case type_data:
  9449. func = utf82DataId;
  9450. break;
  9451. case type_string:
  9452. func = utf82CodepageId;
  9453. break;
  9454. case type_varstring:
  9455. OwnedHqlExpr temp = pure.getTranslatedExpr();
  9456. buildExprAssignViaString(ctx, target, temp, to->getStringLen());
  9457. return;
  9458. }
  9459. args.append(*getSizetConstant(toSize));
  9460. args.append(*getElementPointer(targetVar));
  9461. args.append(*getBoundLength(pure));
  9462. args.append(*getElementPointer(pure.expr));
  9463. if(toType != type_data)
  9464. args.append(*createConstant(to->queryCharset()->queryCodepageName()));
  9465. callProcedure(ctx, func, args);
  9466. }
  9467. break;
  9468. case type_swapint:
  9469. {
  9470. CHqlBoundExpr recast;
  9471. ITypeInfo * tempType = makeIntType(srclen, from->isSigned());
  9472. OwnedHqlExpr translated = createValue(no_implicitcast, tempType, pure.getTranslatedExpr());
  9473. buildExpr(ctx, translated, recast);
  9474. assignAndCast(ctx, target, recast);
  9475. return;
  9476. }
  9477. case type_int:
  9478. case type_packedint:
  9479. {
  9480. //l2an4(toSize, tgt, expr);
  9481. IIdAtom * funcName;
  9482. if (from->isSigned())
  9483. {
  9484. if (toType != type_varstring)
  9485. funcName = (srclen > 4 ? ls82anId : ls42anId);
  9486. else
  9487. funcName = (srclen > 4 ? ls82vnId : ls42vnId);
  9488. }
  9489. else
  9490. {
  9491. if (toType != type_varstring)
  9492. funcName = (srclen > 4 ? l82anId : l42anId);
  9493. else
  9494. funcName = (srclen > 4 ? l82vnId : l42vnId);
  9495. }
  9496. IHqlExpression * strlen = getSizetConstant(toSize);
  9497. args.append(*strlen);
  9498. args.append(*getElementPointer(targetVar));
  9499. args.append(*LINK(pure.expr));
  9500. callProcedure(ctx, funcName, args);
  9501. if (toType != type_data)
  9502. {
  9503. Owned<ICharsetInfo> charset = getCharset(asciiAtom);
  9504. doStringTranslation(ctx, tgtset, charset, toSize, strlen, targetVar, targetVar);
  9505. }
  9506. break;
  9507. }
  9508. case type_void:
  9509. if (pure.expr->getOperator() != no_decimalstack)
  9510. {
  9511. throwCannotCast(from, to);
  9512. break;
  9513. }
  9514. //fall through
  9515. case type_decimal:
  9516. {
  9517. ensurePushed(ctx, pure);
  9518. args.append(*getSizetConstant(toSize));
  9519. OwnedHqlExpr sp = getElementPointer(targetVar);
  9520. args.append(*ensureIndexable(sp));
  9521. switch (toType)
  9522. {
  9523. case type_string: func = DecPopStringId; break;
  9524. case type_data: func = DecPopStringId; break;
  9525. case type_varstring: func = DecPopVStringId; break;
  9526. }
  9527. callProcedure(ctx, func, args);
  9528. break;
  9529. }
  9530. case type_enumerated:
  9531. throwCannotCast(from, to);
  9532. break;
  9533. case type_boolean:
  9534. {
  9535. func = (toType == type_varstring) ? bool2VStrId : (toType == type_data) ? bool2DataId : bool2StrId;
  9536. args.append(*getSizetConstant(toSize));
  9537. args.append(*getElementPointer(targetVar));
  9538. args.append(*pure.expr.getLink());
  9539. callProcedure(ctx, func, args);
  9540. break;
  9541. }
  9542. case type_real:
  9543. {
  9544. IHqlExpression * strlen = getSizetConstant(toSize);
  9545. args.append(*strlen);
  9546. args.append(*getElementPointer(targetVar));
  9547. args.append(*pure.expr.getLink());
  9548. func = (toType == type_varstring) ? f2vnId : f2anId;
  9549. callProcedure(ctx, func, args);
  9550. if (toType != type_data)
  9551. {
  9552. Owned<ICharsetInfo> charset = getCharset(asciiAtom);
  9553. doStringTranslation(ctx, tgtset, charset, toSize, strlen, targetVar, targetVar);
  9554. }
  9555. }
  9556. break;
  9557. default:
  9558. throwCannotCast(from, to);
  9559. break;
  9560. }
  9561. }
  9562. break;
  9563. case type_unicode:
  9564. case type_varunicode:
  9565. switch (fromType)
  9566. {
  9567. case type_unicode:
  9568. case type_varunicode:
  9569. case type_data:
  9570. case type_string:
  9571. case type_varstring:
  9572. case type_utf8:
  9573. {
  9574. IIdAtom * func;
  9575. switch(fromType)
  9576. {
  9577. case type_unicode:
  9578. func = (toType == type_varunicode) ? unicode2VUnicodeId : unicode2UnicodeId;
  9579. break;
  9580. case type_varunicode:
  9581. func = (toType == type_varunicode) ? vunicode2VUnicodeId : vunicode2UnicodeId;
  9582. break;
  9583. case type_data:
  9584. pure.expr.setown(createValue(no_implicitcast, makeReferenceModifier(makeStringType(from->getStringLen(), NULL)), LINK(pure.expr)));
  9585. func = (toType == type_varunicode) ? codepage2VUnicodeId : codepage2UnicodeId;
  9586. break;
  9587. case type_string:
  9588. func = (toType == type_varunicode) ? codepage2VUnicodeId : codepage2UnicodeId;
  9589. break;
  9590. case type_varstring:
  9591. func = (toType == type_varunicode) ? vcodepage2VUnicodeId : vcodepage2UnicodeId;
  9592. break;
  9593. case type_utf8:
  9594. if (toType == type_varunicode)
  9595. {
  9596. OwnedHqlExpr temp = pure.getTranslatedExpr();
  9597. OwnedITypeInfo type = makeUnicodeType(to->getStringLen(), NULL);
  9598. buildExprAssignViaType(ctx, target, temp, type);
  9599. return;
  9600. }
  9601. func = utf82UnicodeId;
  9602. break;
  9603. default:
  9604. throwUnexpected();
  9605. }
  9606. args.append(*getSizetConstant(toSize/2));
  9607. args.append(*getElementPointer(targetVar));
  9608. if((fromType != type_varunicode) && (fromType != type_varstring))
  9609. args.append(*getBoundLength(pure));
  9610. args.append(*getElementPointer(pure.expr));
  9611. if((fromType == type_data) || (fromType == type_string) || (fromType == type_varstring))
  9612. args.append(*createConstant(from->queryCharset()->queryCodepageName()));
  9613. callProcedure(ctx, func, args);
  9614. break;
  9615. }
  9616. default:
  9617. OwnedHqlExpr temp = pure.getTranslatedExpr();
  9618. buildExprAssignViaString(ctx, target, temp, to->getStringLen());
  9619. return;
  9620. }
  9621. break;
  9622. case type_utf8:
  9623. switch (fromType)
  9624. {
  9625. case type_unicode:
  9626. case type_varunicode:
  9627. case type_data:
  9628. case type_string:
  9629. case type_varstring:
  9630. case type_utf8:
  9631. {
  9632. IIdAtom * func;
  9633. switch(fromType)
  9634. {
  9635. case type_unicode:
  9636. case type_varunicode:
  9637. func = unicodeToUtf8Id;
  9638. break;
  9639. case type_utf8:
  9640. func = utf8ToUtf8Id;
  9641. break;
  9642. case type_data:
  9643. case type_string:
  9644. case type_varstring:
  9645. func = codepageToUtf8Id;
  9646. break;
  9647. default:
  9648. throwUnexpected();
  9649. }
  9650. args.append(*getSizetConstant(toSize/4));
  9651. args.append(*getElementPointer(targetVar));
  9652. args.append(*getBoundLength(pure));
  9653. args.append(*getElementPointer(pure.expr));
  9654. if((fromType == type_data) || (fromType == type_string) || (fromType == type_varstring))
  9655. args.append(*createConstant(from->queryCharset()->queryCodepageName()));
  9656. callProcedure(ctx, func, args);
  9657. break;
  9658. }
  9659. default:
  9660. OwnedHqlExpr temp = pure.getTranslatedExpr();
  9661. buildExprAssignViaString(ctx, target, temp, to->getStringLen());
  9662. return;
  9663. }
  9664. break;
  9665. case type_decimal:
  9666. {
  9667. CHqlBoundExpr cast;
  9668. doBuildExprCast(ctx, to, pure, cast);
  9669. ensurePushed(ctx, cast);
  9670. IIdAtom * funcName = to->isSigned() ? DecPopDecimalId : DecPopUDecimalId;
  9671. args.append(*getPointer(target.expr));
  9672. args.append(*getSizetConstant(to->getSize()));
  9673. args.append(*getSizetConstant(to->getPrecision()));
  9674. callProcedure(ctx, funcName, args);
  9675. }
  9676. break;
  9677. case type_swapint:
  9678. {
  9679. unsigned fromSize = from->getSize();
  9680. if (fromType == type_int)
  9681. {
  9682. if (fromSize != toSize)
  9683. {
  9684. Owned<ITypeInfo> tempType = makeIntType(toSize, from->isSigned());
  9685. pure.expr.setown(ensureExprType(pure.expr, tempType));
  9686. }
  9687. if (toSize != 1)
  9688. {
  9689. assignSwapInt(ctx, to, target, pure);
  9690. return;
  9691. }
  9692. }
  9693. CHqlBoundExpr cast;
  9694. doBuildExprCast(ctx, to, pure, cast);
  9695. ctx.addAssign(target.expr, cast.expr);
  9696. }
  9697. break;
  9698. case type_int:
  9699. case type_packedint:
  9700. {
  9701. unsigned fromSize = from->getSize();
  9702. if ((fromType == type_swapint) && !((fromSize == 1) && (toSize == 1)))
  9703. {
  9704. if (fromSize != toSize)
  9705. {
  9706. CHqlBoundExpr tempInt;
  9707. OwnedITypeInfo tempType = makeIntType(fromSize, from->isSigned());
  9708. doBuildCastViaTemp(ctx, tempType, pure, tempInt);
  9709. CHqlBoundExpr cast;
  9710. doBuildExprCast(ctx, to, tempInt, cast);
  9711. ctx.addAssign(target.expr, cast.expr);
  9712. }
  9713. else
  9714. assignSwapInt(ctx, to, target, pure);
  9715. return;
  9716. }
  9717. }
  9718. //fall through
  9719. case type_boolean:
  9720. case type_real:
  9721. case type_row:
  9722. case type_pointer:
  9723. {
  9724. CHqlBoundExpr cast;
  9725. doBuildExprCast(ctx, to, pure, cast);
  9726. ctx.addAssign(target.expr, cast.expr);
  9727. }
  9728. break;
  9729. default:
  9730. throwCannotCast(from, to);
  9731. break;
  9732. }
  9733. }
  9734. void HqlCppTranslator::assignCastUnknownLength(BuildCtx & ctx, const CHqlBoundTarget & target, CHqlBoundExpr & pure)
  9735. {
  9736. assertex(!target.isFixedSize());
  9737. // must be dynamically allocated return type
  9738. ITypeInfo * to = target.queryType();
  9739. ITypeInfo * from = pure.expr->queryType();
  9740. type_t toType = to->getTypeCode();
  9741. type_t fromType = from->getTypeCode();
  9742. IHqlExpression * codepageParam = 0;
  9743. HqlExprArray args;
  9744. IIdAtom * funcName = NULL;
  9745. // assertex(target.length && target.pointer || to->getTypeCode() == type_varstring || to->getTypeCode() == type_varunicode);
  9746. switch (toType)
  9747. {
  9748. case type_qstring:
  9749. {
  9750. switch (fromType)
  9751. {
  9752. case type_qstring:
  9753. funcName = qstrToQStrXId;
  9754. break;
  9755. case type_string:
  9756. case type_data:
  9757. case type_varstring:
  9758. if(!queryDefaultTranslation(to->queryCharset(), from->queryCharset()))
  9759. {
  9760. funcName = strToQStrXId;
  9761. break;
  9762. }
  9763. //fall through
  9764. default:
  9765. CHqlBoundExpr recast;
  9766. ITypeInfo * type = makeStringType(to->getStringLen(), NULL, NULL);
  9767. OwnedHqlExpr translated = createValue(no_implicitcast, type, pure.getTranslatedExpr());
  9768. buildExpr(ctx, translated, recast);
  9769. assignCastUnknownLength(ctx, target, recast);
  9770. return;
  9771. }
  9772. break;
  9773. }
  9774. case type_string:
  9775. case type_data:
  9776. {
  9777. unsigned srclen = from->getSize();
  9778. switch (fromType)
  9779. {
  9780. case type_data:
  9781. case type_string:
  9782. case type_varstring:
  9783. {
  9784. ICharsetInfo * srcset = from->queryCharset();
  9785. ICharsetInfo * tgtset = to->queryCharset();
  9786. if (to->getTypeCode() == type_data)
  9787. funcName = str2DataXId;
  9788. else if ((srcset == tgtset) || (from->getTypeCode() == type_data))
  9789. {
  9790. funcName = str2StrXId;
  9791. }
  9792. else
  9793. {
  9794. if ((from->getSize() == INFINITE_LENGTH) && !pure.length)
  9795. throwError(HQLERR_CastInfiniteString);
  9796. ITranslationInfo * translator = queryDefaultTranslation(tgtset, srcset);
  9797. if (translator)
  9798. funcName = createIdAtom(translator->queryVarRtlFunction());
  9799. else
  9800. funcName = str2StrXId;
  9801. }
  9802. }
  9803. break;
  9804. case type_qstring:
  9805. if(!queryDefaultTranslation(from->queryCharset(), to->queryCharset()))
  9806. {
  9807. funcName = (toType == type_data) ? qstr2DataXId : qstr2StrXId;
  9808. break;
  9809. }
  9810. else
  9811. {
  9812. CHqlBoundExpr recast;
  9813. ITypeInfo * type = makeStringType(to->getStringLen(), NULL, NULL);
  9814. OwnedHqlExpr translated = createValue(no_implicitcast, type, pure.getTranslatedExpr());
  9815. buildExpr(ctx, translated, recast);
  9816. assignCastUnknownLength(ctx, target, recast);
  9817. return;
  9818. }
  9819. case type_unicode:
  9820. {
  9821. if(toType == type_data)
  9822. funcName = unicode2DataXId;
  9823. else
  9824. {
  9825. funcName = unicode2CodepageXId;
  9826. codepageParam = createConstant(to->queryCharset()->queryCodepageName());
  9827. }
  9828. break;
  9829. }
  9830. case type_varunicode:
  9831. {
  9832. if(toType == type_data)
  9833. funcName = vunicode2DataXId;
  9834. else
  9835. {
  9836. funcName = vunicode2CodepageXId;
  9837. codepageParam = createConstant(to->queryCharset()->queryCodepageName());
  9838. }
  9839. break;
  9840. }
  9841. case type_utf8:
  9842. {
  9843. if(toType == type_data)
  9844. funcName = utf82DataXId;
  9845. else
  9846. {
  9847. funcName = utf82CodepageXId;
  9848. codepageParam = createConstant(to->queryCharset()->queryCodepageName());
  9849. }
  9850. break;
  9851. }
  9852. case type_swapint:
  9853. {
  9854. CHqlBoundExpr recast;
  9855. ITypeInfo * type = makeIntType(from->getSize(), from->isSigned());
  9856. OwnedHqlExpr translated = createValue(no_implicitcast, type, pure.getTranslatedExpr());
  9857. buildExpr(ctx, translated, recast);
  9858. assignCastUnknownLength(ctx, target, recast);
  9859. return;
  9860. }
  9861. case type_int:
  9862. case type_real:
  9863. case type_boolean:
  9864. case type_packedint:
  9865. {
  9866. Owned<ICharsetInfo> asciiCharset = getCharset(asciiAtom);
  9867. if (to->queryCharset() != asciiCharset)
  9868. {
  9869. //This should really be handled by the call processing.
  9870. CHqlBoundExpr recast;
  9871. ITypeInfo * type = makeStringType(to->getStringLen(), NULL, NULL);
  9872. OwnedHqlExpr translated = createValue(no_implicitcast, type, pure.getTranslatedExpr());
  9873. buildExpr(ctx, translated, recast);
  9874. assignCastUnknownLength(ctx, target, recast);
  9875. return;
  9876. }
  9877. if (fromType == type_real)
  9878. funcName = f2axId;
  9879. else if (fromType == type_boolean)
  9880. funcName = bool2StrXId;
  9881. else if (from->isSigned())
  9882. funcName = (srclen > 4 ? ls82axId : ls42axId);
  9883. else
  9884. funcName = (srclen > 4 ? l82axId : l42axId);
  9885. args.append(*pure.getTranslatedExpr());
  9886. OwnedHqlExpr call = bindFunctionCall(funcName, args);
  9887. buildExprAssign(ctx, target, call);
  9888. return;
  9889. }
  9890. case type_void:
  9891. if (pure.expr->getOperator() != no_decimalstack)
  9892. {
  9893. throwCannotCast(from, to);
  9894. break;
  9895. }
  9896. //fall through
  9897. case type_decimal:
  9898. {
  9899. ensurePushed(ctx, pure);
  9900. OwnedHqlExpr call = bindFunctionCall(DecPopStringXId, args);
  9901. buildExprAssign(ctx, target, call);
  9902. return;
  9903. }
  9904. default:
  9905. assertex(!"Unknown copy source type");
  9906. return;
  9907. }
  9908. break;
  9909. }
  9910. case type_varstring:
  9911. {
  9912. unsigned srclen = from->getSize();
  9913. switch (from->getTypeCode())
  9914. {
  9915. case type_data:
  9916. case type_string:
  9917. case type_varstring:
  9918. {
  9919. ICharsetInfo * srcset = from->queryCharset();
  9920. ICharsetInfo * tgtset = to->queryCharset();
  9921. if ((srcset == tgtset) || (to->getTypeCode() == type_data) || (from->getTypeCode() == type_data))
  9922. {
  9923. funcName = str2VStrXId;
  9924. }
  9925. else
  9926. {
  9927. funcName = estr2VStrXId;
  9928. }
  9929. }
  9930. break;
  9931. case type_unicode:
  9932. {
  9933. funcName = unicode2VCodepageXId;
  9934. codepageParam = createConstant(to->queryCharset()->queryCodepageName());
  9935. }
  9936. break;
  9937. case type_varunicode:
  9938. {
  9939. funcName = vunicode2VCodepageXId;
  9940. codepageParam = createConstant(to->queryCharset()->queryCodepageName());
  9941. }
  9942. break;
  9943. case type_qstring:
  9944. case type_utf8:
  9945. {
  9946. CHqlBoundExpr recast;
  9947. ITypeInfo * type = makeStringType(from->getStringLen(), NULL, NULL);
  9948. OwnedHqlExpr translated = createValue(no_implicitcast, type, pure.getTranslatedExpr());
  9949. buildExpr(ctx, translated, recast);
  9950. assignCastUnknownLength(ctx, target, recast);
  9951. return;
  9952. }
  9953. case type_swapint:
  9954. {
  9955. CHqlBoundExpr recast;
  9956. ITypeInfo * type = makeIntType(from->getSize(), from->isSigned());
  9957. OwnedHqlExpr translated = createValue(no_implicitcast, type, pure.getTranslatedExpr());
  9958. buildExpr(ctx, translated, recast);
  9959. assignCastUnknownLength(ctx, target, recast);
  9960. return;
  9961. }
  9962. case type_int:
  9963. case type_packedint:
  9964. {
  9965. //l2an4(tgtlen, tgt, expr);
  9966. if (from->isSigned())
  9967. funcName = (srclen > 4 ? ls82vxId : ls42vxId);
  9968. else
  9969. funcName = (srclen > 4 ? l82vxId : l42vxId);
  9970. break;
  9971. }
  9972. case type_boolean:
  9973. {
  9974. funcName = bool2VStrXId;
  9975. break;
  9976. }
  9977. case type_real:
  9978. {
  9979. funcName = f2vxId;;
  9980. break;
  9981. }
  9982. case type_void:
  9983. if (pure.expr->getOperator() != no_decimalstack)
  9984. {
  9985. throwCannotCast(from, to);
  9986. break;
  9987. }
  9988. //fall through
  9989. case type_decimal:
  9990. {
  9991. ensurePushed(ctx, pure);
  9992. OwnedHqlExpr call = bindFunctionCall(DecPopVStringXId, args);
  9993. buildExprAssign(ctx, target, call);
  9994. return;
  9995. }
  9996. default:
  9997. assertex(!"Unknown copy source type");
  9998. return;
  9999. }
  10000. break;
  10001. }
  10002. case type_unicode:
  10003. {
  10004. switch (fromType)
  10005. {
  10006. case type_unicode:
  10007. funcName = unicode2UnicodeXId;
  10008. break;
  10009. case type_varunicode:
  10010. funcName = vunicode2UnicodeXId;
  10011. break;
  10012. case type_utf8:
  10013. funcName = utf82UnicodeXId;
  10014. break;
  10015. case type_data:
  10016. funcName = codepage2UnicodeXId;
  10017. codepageParam = createConstant(from->queryCharset()->queryCodepageName());
  10018. pure.expr.setown(createValue(no_implicitcast, makeStringType(from->getStringLen(), NULL, NULL), LINK(pure.expr)));
  10019. break;
  10020. case type_string:
  10021. funcName = codepage2UnicodeXId;
  10022. codepageParam = createConstant(from->queryCharset()->queryCodepageName());
  10023. pure.expr.setown(createValue(no_typetransfer, makeStringType(from->getStringLen(), NULL, NULL), LINK(pure.expr)));
  10024. break;
  10025. case type_varstring:
  10026. funcName = vcodepage2UnicodeXId;
  10027. codepageParam = createConstant(from->queryCharset()->queryCodepageName());
  10028. pure.expr.setown(createValue(no_typetransfer, makeVarStringType(from->getStringLen(), NULL, NULL), LINK(pure.expr)));
  10029. break;
  10030. default:
  10031. CHqlBoundExpr recast;
  10032. ITypeInfo * type = makeStringType(to->getStringLen(), NULL, NULL);
  10033. OwnedHqlExpr translated = createValue(no_implicitcast, type, pure.getTranslatedExpr());
  10034. buildExpr(ctx, translated, recast);
  10035. assignCastUnknownLength(ctx, target, recast);
  10036. return;
  10037. }
  10038. break;
  10039. }
  10040. case type_varunicode:
  10041. {
  10042. switch (fromType)
  10043. {
  10044. case type_unicode:
  10045. case type_utf8: // go via unicode
  10046. funcName = unicode2VUnicodeXId;
  10047. break;
  10048. case type_varunicode:
  10049. funcName = vunicode2VUnicodeXId;
  10050. break;
  10051. case type_string:
  10052. case type_data:
  10053. funcName = codepage2VUnicodeXId;
  10054. codepageParam = createConstant(from->queryCharset()->queryCodepageName());
  10055. pure.expr.setown(createValue(no_typetransfer, makeStringType(from->getStringLen(), NULL, NULL), LINK(pure.expr)));
  10056. break;
  10057. case type_varstring:
  10058. funcName = vcodepage2VUnicodeXId;
  10059. codepageParam = createConstant(from->queryCharset()->queryCodepageName());
  10060. pure.expr.setown(createValue(no_typetransfer, makeVarStringType(from->getStringLen(), NULL, NULL), LINK(pure.expr)));
  10061. break;
  10062. default:
  10063. CHqlBoundExpr recast;
  10064. ITypeInfo * type = makeStringType(to->getStringLen(), NULL, NULL);
  10065. OwnedHqlExpr translated = createValue(no_implicitcast, type, pure.getTranslatedExpr());
  10066. buildExpr(ctx, translated, recast);
  10067. assignCastUnknownLength(ctx, target, recast);
  10068. return;
  10069. }
  10070. break;
  10071. }
  10072. case type_utf8:
  10073. {
  10074. switch (fromType)
  10075. {
  10076. case type_unicode:
  10077. case type_varunicode:
  10078. funcName = unicodeToUtf8XId;
  10079. break;
  10080. case type_utf8:
  10081. funcName = utf8ToUtf8XId;
  10082. break;
  10083. case type_string:
  10084. case type_data:
  10085. case type_varstring:
  10086. funcName = codepageToUtf8XId;
  10087. codepageParam = createConstant(from->queryCharset()->queryCodepageName());
  10088. pure.expr.setown(createValue(no_typetransfer, makeStringType(from->getStringLen(), NULL, NULL), LINK(pure.expr)));
  10089. break;
  10090. default:
  10091. CHqlBoundExpr recast;
  10092. ITypeInfo * type = makeStringType(to->getStringLen(), NULL, NULL);
  10093. OwnedHqlExpr translated = createValue(no_implicitcast, type, pure.getTranslatedExpr());
  10094. buildExpr(ctx, translated, recast);
  10095. assignCastUnknownLength(ctx, target, recast);
  10096. return;
  10097. }
  10098. break;
  10099. }
  10100. case type_set:
  10101. if (isSameBasicType(to->queryChildType(), from->queryChildType()))
  10102. {
  10103. if (!target.isAll)
  10104. {
  10105. //Ugly. Create a dummy isAll field to assign to..
  10106. assertex(!pure.isAll || matchesBoolean(pure.isAll, false));
  10107. CHqlBoundTarget tempTarget;
  10108. tempTarget.set(target);
  10109. tempTarget.isAll.setown(ctx.getTempDeclare(queryBoolType(), NULL));
  10110. assignCastUnknownLength(ctx, tempTarget, pure);
  10111. return;
  10112. }
  10113. funcName = set2SetXId;
  10114. }
  10115. else
  10116. {
  10117. OwnedHqlExpr values = pure.getTranslatedExpr();
  10118. buildSetAssignViaBuilder(ctx, target, values);
  10119. return;
  10120. }
  10121. break;
  10122. case type_dictionary:
  10123. case type_table:
  10124. case type_groupedtable:
  10125. {
  10126. OwnedHqlExpr src = pure.getTranslatedExpr();
  10127. buildDatasetAssign(ctx, target, src);
  10128. return;
  10129. }
  10130. default:
  10131. assertex(!"Unexpected target type for variable length");
  10132. break;
  10133. }
  10134. args.append(*pure.getTranslatedExpr());
  10135. if(codepageParam)
  10136. args.append(*codepageParam);
  10137. OwnedHqlExpr call = bindFunctionCall(funcName, args);
  10138. buildExprAssign(ctx, target, call);
  10139. }
  10140. void HqlCppTranslator::expandFunctions(bool expandInline)
  10141. {
  10142. if (expandInline)
  10143. {
  10144. BuildCtx ctx(*code, prototypeAtom);
  10145. ForEachItemIn(idx, code->helpers)
  10146. {
  10147. IHqlExpression & cur = (IHqlExpression &)code->helpers.item(idx);
  10148. StringBuffer init;
  10149. if (getAttribute(cur.queryChild(0), initfunctionAtom, init))
  10150. {
  10151. StringBuffer initproto("extern \"C\" void SERVICE_API ");
  10152. initproto.append(init).append("(const char *);");
  10153. ctx.addQuoted(initproto);
  10154. }
  10155. expandFunctionPrototype(ctx, &cur);
  10156. }
  10157. }
  10158. else
  10159. {
  10160. CIArray includes;
  10161. BuildCtx ctx(*code, includeAtom);
  10162. ForEachItemIn(idx, code->helpers)
  10163. {
  10164. //StringBuffer include;
  10165. //IHqlExpression & cur = (IHqlExpression &)code->helpers.item(idx);
  10166. // getLibraryName(cur, include);
  10167. //MORE!! Get the include name...
  10168. }
  10169. }
  10170. }
  10171. void HqlCppTranslator::bindAndPush(BuildCtx & ctx, IHqlExpression * value)
  10172. {
  10173. CHqlBoundExpr bound;
  10174. buildExpr(ctx, value, bound);
  10175. ensurePushed(ctx, bound);
  10176. }
  10177. bool HqlCppTranslator::ensurePushed(BuildCtx & ctx, const CHqlBoundExpr & pure)
  10178. {
  10179. if (!isPushed(pure))
  10180. {
  10181. //Temporary solution - create a critical block whenever the decimals are used.
  10182. OwnedHqlExpr marker = createAttribute(decimalAtom);
  10183. if (!ctx.queryMatchExpr(marker))
  10184. {
  10185. //If a group with no {} is added, we might get a name clash => make it unique
  10186. StringBuffer s;
  10187. getUniqueId(s.append("BcdCriticalBlock bcd")).append(";");
  10188. ctx.addQuoted(s);
  10189. ctx.associateExpr(marker, NULL);
  10190. }
  10191. ITypeInfo * type = pure.expr->queryType();
  10192. HqlExprArray args;
  10193. IIdAtom * funcName = NULL;
  10194. switch (type->getTypeCode())
  10195. {
  10196. case type_data:
  10197. case type_string:
  10198. case type_varstring:
  10199. funcName = DecPushStringId;
  10200. if (type->queryCharset()->queryName() == ebcdicAtom)
  10201. {
  10202. CHqlBoundExpr temp;
  10203. OwnedHqlExpr translated = pure.getTranslatedExpr();
  10204. OwnedHqlExpr cast = createValue(no_cast, getAsciiType(type), translated.getClear());
  10205. buildExpr(ctx, cast, temp);
  10206. args.append(*getBoundLength(temp));
  10207. args.append(*getElementPointer(temp.expr));
  10208. }
  10209. else
  10210. {
  10211. args.append(*getBoundLength(pure));
  10212. args.append(*getElementPointer(pure.expr));
  10213. }
  10214. break;
  10215. case type_qstring:
  10216. funcName = DecPushQStringId;
  10217. args.append(*getBoundLength(pure));
  10218. args.append(*getElementPointer(pure.expr));
  10219. break;
  10220. case type_unicode:
  10221. case type_varunicode:
  10222. funcName = DecPushUnicodeId;
  10223. args.append(*getBoundLength(pure));
  10224. args.append(*getElementPointer(pure.expr));
  10225. break;
  10226. case type_utf8:
  10227. funcName = DecPushUtf8Id;
  10228. args.append(*getBoundLength(pure));
  10229. args.append(*getElementPointer(pure.expr));
  10230. break;
  10231. case type_decimal:
  10232. funcName = type->isSigned() ? DecPushDecimalId : DecPushUDecimalId;
  10233. args.append(*getPointer(pure.expr));
  10234. args.append(*getSizetConstant(type->getSize()));
  10235. args.append(*getSizetConstant(type->getPrecision()));
  10236. break;
  10237. case type_swapint:
  10238. {
  10239. CHqlBoundExpr copyPure;
  10240. copyPure.set(pure);
  10241. //cast via intermediate int.
  10242. OwnedITypeInfo tempType = makeIntType(type->getSize(), type->isSigned());
  10243. CHqlBoundExpr boundCast;
  10244. doBuildExprCast(ctx, tempType, copyPure, boundCast);
  10245. funcName = type->isSigned() ? DecPushInt64Id : DecPushUInt64Id;
  10246. args.append(*boundCast.expr.getLink());
  10247. break;
  10248. }
  10249. //fall through
  10250. case type_int:
  10251. case type_packedint:
  10252. //more signed/unsigned and optimize the length...
  10253. funcName = type->isSigned() ? DecPushInt64Id : DecPushUInt64Id;
  10254. args.append(*pure.expr.getLink());
  10255. break;
  10256. case type_enumerated:
  10257. throwError2(HQLERR_CastXNotImplemented, "map", "decimal");
  10258. break;
  10259. case type_boolean:
  10260. funcName = DecPushLongId;
  10261. args.append(*pure.expr.getLink());
  10262. break;
  10263. case type_real:
  10264. funcName = DecPushRealId;
  10265. args.append(*pure.expr.getLink());
  10266. break;
  10267. default:
  10268. throwError2(HQLERR_CastXNotImplemented, "unknown", "varstring");
  10269. break;
  10270. }
  10271. if (funcName)
  10272. callProcedure(ctx, funcName, args);
  10273. return true;
  10274. }
  10275. return false;
  10276. }
  10277. static StringBuffer & appendCapital(StringBuffer & s, const char * name)
  10278. {
  10279. if (name && name[0])
  10280. {
  10281. s.append((char)toupper(*name));
  10282. s.append(name+1);
  10283. }
  10284. return s;
  10285. }
  10286. bool HqlCppTranslator::expandFunctionPrototype(StringBuffer & s, IHqlExpression * funcdef)
  10287. {
  10288. return generateFunctionPrototype(s, funcdef, options.targetCompiler);
  10289. }
  10290. void HqlCppTranslator::expandFunctionPrototype(BuildCtx & ctx, IHqlExpression * funcdef)
  10291. {
  10292. StringBuffer s;
  10293. if (expandFunctionPrototype(s, funcdef))
  10294. {
  10295. s.append(";");
  10296. IHqlExpression *body = funcdef->queryChild(0);
  10297. IHqlExpression *namespaceAttr = body->queryAttribute(namespaceAtom);
  10298. if (namespaceAttr)
  10299. {
  10300. StringBuffer ns;
  10301. getStringValue(ns, namespaceAttr->queryChild(0));
  10302. ns.insert(0, "namespace ").appendf(" { %s }", s.str());
  10303. ctx.addQuoted(ns);
  10304. }
  10305. else
  10306. ctx.addQuoted(s);
  10307. }
  10308. }
  10309. //Replace no_param with whatever they will have been bound to
  10310. static IHqlExpression *createActualFromFormal(IHqlExpression *param)
  10311. {
  10312. StringBuffer temp;
  10313. ITypeInfo *paramType = param->queryType();
  10314. CHqlBoundExpr bound;
  10315. //Case is significant if these parameters are use for BEGINC++ sections
  10316. IIdAtom * paramName = param->queryId();
  10317. const char * paramNameText = paramName->lower()->str();
  10318. Linked<ITypeInfo> type = paramType;
  10319. switch (paramType->getTypeCode())
  10320. {
  10321. case type_set:
  10322. {
  10323. appendCapital(temp.clear().append("isAll"), paramNameText);
  10324. bound.isAll.setown(createVariable(temp.str(), makeBoolType()));
  10325. }
  10326. //fall through
  10327. case type_string:
  10328. case type_qstring:
  10329. case type_data:
  10330. case type_unicode:
  10331. case type_utf8:
  10332. case type_dictionary:
  10333. case type_table:
  10334. case type_groupedtable:
  10335. if (paramType->getSize() == UNKNOWN_LENGTH)
  10336. {
  10337. if (hasOutOfLineModifier(paramType) || hasLinkCountedModifier(paramType))
  10338. {
  10339. appendCapital(temp.clear().append("count"), paramNameText);
  10340. bound.count.setown(createVariable(temp.str(), LINK(sizetType)));
  10341. }
  10342. else
  10343. {
  10344. appendCapital(temp.clear().append("len"), paramNameText);
  10345. bound.length.setown(createVariable(temp.str(), LINK(sizetType)));
  10346. }
  10347. }
  10348. type.setown(makeReferenceModifier(LINK(type)));
  10349. break;
  10350. }
  10351. bound.expr.setown(createVariable(paramNameText, LINK(type)));
  10352. return bound.getTranslatedExpr();
  10353. }
  10354. static IHqlExpression * replaceInlineParameters(IHqlExpression * funcdef, IHqlExpression * expr)
  10355. {
  10356. IHqlExpression * body = funcdef->queryChild(0);
  10357. assertex(!body->hasAttribute(oldSetFormatAtom));
  10358. IHqlExpression * formals = funcdef->queryChild(1);
  10359. HqlMapTransformer simpleTransformer;
  10360. StringBuffer paramNameText, temp;
  10361. ForEachChild(i, formals)
  10362. {
  10363. IHqlExpression * param = formals->queryChild(i);
  10364. OwnedHqlExpr actual = createActualFromFormal(param);
  10365. simpleTransformer.setMapping(param, actual);
  10366. }
  10367. return simpleTransformer.transformRoot(expr);
  10368. }
  10369. void HqlCppTranslator::doBuildUserFunctionReturn(BuildCtx & ctx, ITypeInfo * type, IHqlExpression * value)
  10370. {
  10371. if (!options.spotCSE)
  10372. {
  10373. doBuildFunctionReturn(ctx, type, value);
  10374. return;
  10375. }
  10376. switch (value->getOperator())
  10377. {
  10378. case no_if:
  10379. if (false)///disable for the moment - look at changes in klogermann11 to see why, some v.good, some bad.
  10380. {
  10381. //optimize the way that cses are spotted to minimise unnecessary calculations
  10382. OwnedHqlExpr branches = createComma(LINK(value->queryChild(1)), LINK(value->queryChild(2)));
  10383. OwnedHqlExpr cond = LINK(value->queryChild(0));
  10384. spotScalarCSE(cond, branches, NULL, NULL);
  10385. BuildCtx subctx(ctx);
  10386. IHqlStmt * stmt = buildFilterViaExpr(subctx, cond);
  10387. doBuildUserFunctionReturn(subctx, type, branches->queryChild(0));
  10388. subctx.selectElse(stmt);
  10389. doBuildUserFunctionReturn(subctx, type, branches->queryChild(1));
  10390. break;
  10391. }
  10392. default:
  10393. {
  10394. OwnedHqlExpr optimized = spotScalarCSE(value);
  10395. if (value->isAction())
  10396. buildStmt(ctx, value);
  10397. else
  10398. doBuildFunctionReturn(ctx, type, optimized);
  10399. break;
  10400. }
  10401. }
  10402. }
  10403. void HqlCppTranslator::buildCppFunctionDefinition(BuildCtx &funcctx, IHqlExpression * bodyCode, const char *proto)
  10404. {
  10405. processCppBodyDirectives(bodyCode);
  10406. IHqlExpression * location = queryLocation(bodyCode);
  10407. const char * locationFilename = location ? location->querySourcePath()->str() : NULL;
  10408. unsigned startLine = location ? location->getStartLine() : 0;
  10409. IHqlExpression * cppBody = bodyCode->queryChild(0);
  10410. if (cppBody->getOperator() == no_record)
  10411. cppBody = bodyCode->queryChild(1);
  10412. StringBuffer text;
  10413. cppBody->queryValue()->getUTF8Value(text);
  10414. //remove #option, and remove /r so we don't end up with mixed format end of lines.
  10415. text.setLength(cleanupEmbeddedCpp(text.length(), (char*)text.str()));
  10416. const char * start = text.str();
  10417. loop
  10418. {
  10419. char next = *start;
  10420. if (next == '\n')
  10421. startLine++;
  10422. else if (next != '\r')
  10423. break;
  10424. start++;
  10425. }
  10426. const char * body = start;
  10427. const char * cppSeparatorText = "#body";
  10428. const char * separator = strstr(body, cppSeparatorText);
  10429. if (separator)
  10430. {
  10431. text.setCharAt(separator-text.str(), 0);
  10432. if (location)
  10433. funcctx.addLine(locationFilename, startLine);
  10434. funcctx.addQuoted(body);
  10435. if (location)
  10436. funcctx.addLine();
  10437. body = separator + strlen(cppSeparatorText);
  10438. if (*body == '\r') body++;
  10439. if (*body == '\n') body++;
  10440. startLine += memcount(body-start, start, '\n');
  10441. }
  10442. funcctx.addQuotedCompound(proto);
  10443. if (location)
  10444. funcctx.addLine(locationFilename, startLine);
  10445. funcctx.addQuoted(body);
  10446. if (location)
  10447. funcctx.addLine();
  10448. }
  10449. void HqlCppTranslator::buildScriptFunctionDefinition(BuildCtx &funcctx, IHqlExpression * funcdef, const char *proto)
  10450. {
  10451. ITypeInfo * returnType = funcdef->queryType()->queryChildType();
  10452. IHqlExpression * outofline = funcdef->queryChild(0);
  10453. assertex(outofline->getOperator() == no_outofline);
  10454. IHqlExpression * bodyCode = outofline->queryChild(0);
  10455. IHqlExpression *language = queryAttributeChild(bodyCode, languageAtom, 0);
  10456. bool isImport = bodyCode->hasAttribute(importAtom);
  10457. funcctx.addQuotedCompound(proto);
  10458. HqlExprArray noargs;
  10459. OwnedHqlExpr getPlugin = bindFunctionCall(language, noargs);
  10460. OwnedHqlExpr pluginPtr = createQuoted("Owned<IEmbedContext> __plugin", makeBoolType()); // Not really bool - at some point ECL may support without this aliasing...
  10461. buildAssignToTemp(funcctx, pluginPtr, getPlugin);
  10462. StringBuffer createParam;
  10463. createParam.append("Owned<IEmbedFunctionContext> __ctx = __plugin->createFunctionContext(");
  10464. createParam.append(isImport ? "true" : "false");
  10465. StringBuffer attrParam;
  10466. ForEachChild(idx, bodyCode)
  10467. {
  10468. IHqlExpression *child = bodyCode->queryChild(idx);
  10469. if (child->isAttribute() && child->queryName() != languageAtom && child->queryName() != importAtom)
  10470. {
  10471. attrParam.append(",");
  10472. attrParam.append(child->queryName());
  10473. StringBuffer attrValue;
  10474. if (getStringValue(attrValue, child->queryChild(0)).length())
  10475. {
  10476. attrParam.append('=');
  10477. appendStringAsCPP(attrParam, attrValue.length(), attrValue.str(), true);
  10478. }
  10479. }
  10480. }
  10481. if (attrParam.length())
  10482. createParam.append(",\"").append(attrParam.str()+1).append('"');
  10483. else
  10484. createParam.append(",NULL");
  10485. createParam.append(");");
  10486. funcctx.addQuoted(createParam);
  10487. OwnedHqlExpr ctxVar = createVariable("__ctx", makeBoolType());
  10488. HqlExprArray scriptArgs;
  10489. scriptArgs.append(*LINK(ctxVar));
  10490. scriptArgs.append(*LINK(bodyCode->queryChild(0)));
  10491. buildFunctionCall(funcctx, isImport ? importId : compileEmbeddedScriptId, scriptArgs);
  10492. IHqlExpression *formals = funcdef->queryChild(1);
  10493. ForEachChild(i, formals)
  10494. {
  10495. HqlExprArray args;
  10496. args.append(*LINK(ctxVar));
  10497. IHqlExpression * param = formals->queryChild(i);
  10498. ITypeInfo *paramType = param->queryType();
  10499. IIdAtom * paramId = param->queryId();
  10500. const char * paramNameText = paramId->str();
  10501. if (!options.preserveCaseExternalParameter)
  10502. paramNameText = paramId->lower()->str();
  10503. args.append(*createConstant(paramNameText));
  10504. IIdAtom * bindFunc;
  10505. switch (paramType->getTypeCode())
  10506. {
  10507. case type_int:
  10508. bindFunc = paramType->isSigned() ? bindSignedParamId : bindUnsignedParamId;
  10509. break;
  10510. case type_varstring:
  10511. bindFunc = bindVStringParamId;
  10512. break;
  10513. case type_string:
  10514. bindFunc = bindStringParamId;
  10515. break;
  10516. case type_real:
  10517. bindFunc = bindRealParamId;
  10518. break;
  10519. case type_boolean:
  10520. bindFunc = bindBooleanParamId;
  10521. break;
  10522. case type_utf8:
  10523. bindFunc = bindUtf8ParamId;
  10524. break;
  10525. case type_unicode:
  10526. bindFunc = bindUnicodeParamId;
  10527. break;
  10528. case type_data:
  10529. bindFunc = bindDataParamId;
  10530. break;
  10531. case type_set:
  10532. {
  10533. bindFunc = bindSetParamId;
  10534. ITypeInfo *childType = paramType->queryChildType();
  10535. type_t typeCode = childType->getTypeCode();
  10536. if (childType->isInteger() && !childType->isSigned())
  10537. typeCode = type_unsigned;
  10538. args.append(*createIntConstant(typeCode));
  10539. args.append(*createIntConstant(childType->getSize()));
  10540. break;
  10541. }
  10542. default:
  10543. StringBuffer typeText;
  10544. getFriendlyTypeStr(paramType, typeText);
  10545. throwError1(HQLERR_EmbeddedTypeNotSupported_X, typeText.str());
  10546. }
  10547. args.append(*createActualFromFormal(param));
  10548. buildFunctionCall(funcctx, bindFunc, args);
  10549. }
  10550. funcctx.addQuoted("__ctx->callFunction();");
  10551. IIdAtom * returnFunc;
  10552. HqlExprArray retargs;
  10553. retargs.append(*LINK(ctxVar));
  10554. switch (returnType->getTypeCode())
  10555. {
  10556. case type_int:
  10557. returnFunc = returnType->isSigned() ? getSignedResultId : getUnsignedResultId;
  10558. break;
  10559. case type_varstring:
  10560. case type_string:
  10561. returnFunc = getStringResultId;
  10562. break;
  10563. case type_real:
  10564. returnFunc = getRealResultId;
  10565. break;
  10566. case type_boolean:
  10567. returnFunc = getBooleanResultId;
  10568. break;
  10569. case type_unicode:
  10570. returnFunc = getUnicodeResultId;
  10571. break;
  10572. case type_utf8:
  10573. returnFunc = getUTF8ResultId;
  10574. break;
  10575. case type_data:
  10576. returnFunc = getDataResultId;
  10577. break;
  10578. case type_set:
  10579. {
  10580. returnFunc = getSetResultId;
  10581. ITypeInfo *childType = returnType->queryChildType();
  10582. type_t typeCode = childType->getTypeCode();
  10583. if (childType->isInteger() && !childType->isSigned())
  10584. typeCode = type_unsigned;
  10585. retargs.append(*createIntConstant(typeCode));
  10586. retargs.append(*createIntConstant(returnType->queryChildType()->getSize()));
  10587. break;
  10588. }
  10589. default:
  10590. StringBuffer typeText;
  10591. getFriendlyTypeStr(returnType, typeText);
  10592. throwError1(HQLERR_EmbeddedTypeNotSupported_X, typeText.str());
  10593. }
  10594. OwnedHqlExpr call = bindFunctionCall(returnFunc, retargs);
  10595. doBuildUserFunctionReturn(funcctx, returnType, call);
  10596. }
  10597. void HqlCppTranslator::buildFunctionDefinition(IHqlExpression * funcdef)
  10598. {
  10599. IHqlExpression * outofline = funcdef->queryChild(0);
  10600. assertex(outofline->getOperator() == no_outofline);
  10601. IHqlExpression * bodyCode = outofline->queryChild(0);
  10602. StringBuffer proto;
  10603. BuildCtx funcctx(*code, helperAtom);
  10604. if (options.spanMultipleCpp)
  10605. {
  10606. const bool inChildActivity = true; // assume the worst
  10607. OwnedHqlExpr pass = getSizetConstant(cppIndexNextActivity(inChildActivity));
  10608. funcctx.addGroupPass(pass);
  10609. }
  10610. expandFunctionPrototype(proto, funcdef);
  10611. if (bodyCode->getOperator() == no_embedbody)
  10612. {
  10613. if (!allowEmbeddedCpp())
  10614. throwError(HQLERR_EmbeddedCppNotAllowed);
  10615. IHqlExpression *languageAttr = bodyCode->queryAttribute(languageAtom);
  10616. if (languageAttr)
  10617. buildScriptFunctionDefinition(funcctx, funcdef, proto);
  10618. else
  10619. buildCppFunctionDefinition(funcctx, bodyCode, proto);
  10620. }
  10621. else
  10622. {
  10623. funcctx.addQuotedCompound(proto);
  10624. //MORE: Need to work out how to handle functions that require the context.
  10625. //Need to create a class instead.
  10626. assertex(!outofline->hasAttribute(contextAtom));
  10627. OwnedHqlExpr newCode = replaceInlineParameters(funcdef, bodyCode);
  10628. newCode.setown(foldHqlExpression(newCode));
  10629. ITypeInfo * returnType = funcdef->queryType()->queryChildType();
  10630. doBuildUserFunctionReturn(funcctx, returnType, newCode);
  10631. }
  10632. }
  10633. //---------------------------------------------------------------------------
  10634. void HqlCppTranslator::doBuildPureSubExpr(BuildCtx & ctx, IHqlExpression * expr, CHqlBoundExpr & tgt)
  10635. {
  10636. unsigned max = expr->numChildren();
  10637. if (max == 0)
  10638. tgt.expr.set(expr);
  10639. else
  10640. {
  10641. HqlExprArray args;
  10642. unsigned idx = 0;
  10643. CHqlBoundExpr bound;
  10644. for (idx = 0; idx < max; idx++)
  10645. {
  10646. buildExpr(ctx, expr->queryChild(idx), bound);
  10647. args.append(*bound.expr.getClear());
  10648. }
  10649. tgt.expr.setown(expr->clone(args));
  10650. }
  10651. }
  10652. //---------------------------------------------------------------------------
  10653. IHqlExpression * HqlCppTranslator::getListLength(BuildCtx & ctx, IHqlExpression * expr)
  10654. {
  10655. CHqlBoundExpr bound;
  10656. buildExpr(ctx, expr, bound);
  10657. return getBoundLength(bound);
  10658. }
  10659. IHqlExpression * HqlCppTranslator::getBoundCount(const CHqlBoundExpr & bound)
  10660. {
  10661. if (bound.count)
  10662. return bound.count.getLink();
  10663. ITypeInfo * type = bound.expr->queryType();
  10664. switch (type->getTypeCode())
  10665. {
  10666. case type_array:
  10667. {
  10668. if (bound.length)
  10669. return convertBetweenCountAndSize(bound, true);
  10670. unsigned size = type->getSize();
  10671. if (size != UNKNOWN_LENGTH)
  10672. return getSizetConstant(size / type->queryChildType()->getSize());
  10673. UNIMPLEMENTED;
  10674. }
  10675. case type_dictionary:
  10676. case type_table:
  10677. case type_groupedtable:
  10678. case type_set:
  10679. if (bound.length)
  10680. return convertBetweenCountAndSize(bound, true);
  10681. UNIMPLEMENTED;
  10682. default:
  10683. UNIMPLEMENTED;
  10684. }
  10685. }
  10686. IHqlExpression * HqlCppTranslator::getBoundLength(const CHqlBoundExpr & bound)
  10687. {
  10688. if (bound.length)
  10689. return bound.length.getLink();
  10690. ITypeInfo * type = bound.expr->queryType();
  10691. if (bound.expr->queryValue())
  10692. return getSizetConstant(type->getStringLen());
  10693. switch (type->getTypeCode())
  10694. {
  10695. case type_varstring:
  10696. {
  10697. HqlExprArray args;
  10698. args.append(*getElementPointer(bound.expr));
  10699. return bindTranslatedFunctionCall(strlenId, args);
  10700. }
  10701. case type_varunicode:
  10702. {
  10703. HqlExprArray args;
  10704. args.append(*getElementPointer(bound.expr));
  10705. return bindTranslatedFunctionCall(unicodeStrlenId, args);
  10706. }
  10707. case type_set:
  10708. case type_array:
  10709. case type_dictionary:
  10710. case type_table:
  10711. case type_groupedtable:
  10712. assertex(!isArrayRowset(type));
  10713. if (bound.count)
  10714. return convertBetweenCountAndSize(bound, false);
  10715. UNIMPLEMENTED;
  10716. case type_utf8:
  10717. {
  10718. assertex(type->getSize() != UNKNOWN_LENGTH);
  10719. HqlExprArray args;
  10720. args.append(*getSizetConstant(type->getSize()));
  10721. args.append(*getElementPointer(bound.expr));
  10722. return bindTranslatedFunctionCall(utf8LengthId, args);
  10723. }
  10724. default:
  10725. return getSizetConstant(type->getStringLen());
  10726. }
  10727. }
  10728. IHqlExpression * HqlCppTranslator::getBoundSize(ITypeInfo * type, IHqlExpression * length, IHqlExpression * data)
  10729. {
  10730. type_t tc = type->getTypeCode();
  10731. ITypeInfo * lengthType = length->queryType();
  10732. switch (tc)
  10733. {
  10734. case type_qstring:
  10735. {
  10736. if (length->queryValue())
  10737. return getSizetConstant((size32_t)rtlQStrSize((size32_t)length->queryValue()->getIntValue()));
  10738. HqlExprArray args;
  10739. args.append(*LINK(length));
  10740. return bindTranslatedFunctionCall(qstrSizeId, args);
  10741. }
  10742. case type_varstring:
  10743. return adjustValue(length, 1);
  10744. case type_varunicode:
  10745. {
  10746. OwnedHqlExpr temp = adjustValue(length, 1);
  10747. return multiplyValue(temp, 2);
  10748. }
  10749. case type_unicode:
  10750. return multiplyValue(length, 2);
  10751. case type_utf8:
  10752. {
  10753. assertex(data);
  10754. if (data->queryValue())
  10755. return getSizetConstant(data->queryValue()->getSize());
  10756. HqlExprArray args;
  10757. args.append(*LINK(length));
  10758. args.append(*getElementPointer(data));
  10759. return bindTranslatedFunctionCall(utf8SizeId, args);
  10760. }
  10761. case type_array:
  10762. case type_set:
  10763. return LINK(length);
  10764. default:
  10765. return LINK(length);
  10766. }
  10767. }
  10768. IHqlExpression * HqlCppTranslator::getBoundSize(const CHqlBoundExpr & bound)
  10769. {
  10770. ITypeInfo * type = bound.expr->queryType();
  10771. if (bound.length)
  10772. return getBoundSize(type, bound.length, bound.expr);
  10773. type_t tc = type->getTypeCode();
  10774. if (tc == type_row)
  10775. {
  10776. if (hasReferenceModifier(type))
  10777. return getSizetConstant(sizeof(void*));
  10778. IHqlExpression * record = ::queryRecord(type);
  10779. ColumnToOffsetMap * map = queryRecordOffsetMap(record);
  10780. if (map->isFixedWidth())
  10781. return getSizetConstant(map->getFixedRecordSize());
  10782. //call meta function mm.queryRecordSize(&row)
  10783. StringBuffer metaInstance, temp;
  10784. buildMetaForRecord(metaInstance, record);
  10785. temp.append(metaInstance).append(".getRecordSize(");
  10786. OwnedHqlExpr rowAddr = getPointer(bound.expr);
  10787. generateExprCpp(temp, rowAddr);
  10788. temp.append(")");
  10789. return createQuoted(temp.str(), LINK(sizetType));
  10790. }
  10791. if (type->getSize() != UNKNOWN_LENGTH)
  10792. return getSizetConstant(type->getSize());
  10793. OwnedHqlExpr length = getBoundLength(bound);
  10794. return getBoundSize(type, length, bound.expr);
  10795. }
  10796. IHqlExpression * HqlCppTranslator::getFirstCharacter(IHqlExpression * source)
  10797. {
  10798. if (source->getOperator() == no_constant)
  10799. {
  10800. StringBuffer temp;
  10801. source->queryValue()->getStringValue(temp);
  10802. return createUIntConstant((unsigned char)temp.charAt(0));
  10803. }
  10804. return createValue(no_index, makeCharType(), LINK(source), getZero());
  10805. }
  10806. IHqlExpression * HqlCppTranslator::getElementPointer(IHqlExpression * source)
  10807. {
  10808. ITypeInfo * srcType = source->queryType();
  10809. switch (srcType->getTypeCode())
  10810. {
  10811. case type_string:
  10812. case type_data:
  10813. case type_qstring:
  10814. case type_varstring:
  10815. case type_unicode:
  10816. case type_utf8:
  10817. case type_varunicode:
  10818. case type_set:
  10819. case type_array:
  10820. break;
  10821. default:
  10822. throwUnexpectedType(srcType);
  10823. }
  10824. if (source->getOperator() == no_constant)
  10825. return LINK(source);
  10826. OwnedHqlExpr pointer = getPointer(source);
  10827. return ensureIndexable(pointer);
  10828. }
  10829. /* All in params: NOT linked */
  10830. IHqlExpression * HqlCppTranslator::getIndexedElementPointer(IHqlExpression * source, IHqlExpression * index)
  10831. {
  10832. ITypeInfo * srcType = source->queryType();
  10833. switch (srcType->getTypeCode())
  10834. {
  10835. case type_string:
  10836. case type_data:
  10837. case type_qstring:
  10838. case type_varstring:
  10839. case type_unicode:
  10840. case type_utf8:
  10841. case type_varunicode:
  10842. break;
  10843. default:
  10844. throwUnexpectedType(srcType);
  10845. }
  10846. if (!index)
  10847. return getElementPointer(source);
  10848. IValue * value = index->queryValue();
  10849. if (value && value->getIntValue() == 0)
  10850. return getElementPointer(source);
  10851. ITypeInfo * refType = LINK(srcType);
  10852. if (!srcType->isReference())
  10853. refType = makeReferenceModifier(refType);
  10854. OwnedHqlExpr temp;
  10855. if (srcType->getTypeCode() == type_utf8)
  10856. {
  10857. HqlExprArray args;
  10858. args.append(*LINK(index));
  10859. args.append(*getElementPointer(source));
  10860. temp.setown(bindTranslatedFunctionCall(utf8SizeId, args));
  10861. index = temp;
  10862. }
  10863. //special case string indexing
  10864. if (source->getOperator() != no_constant)
  10865. {
  10866. if (!srcType->isReference() && !hasWrapperModifier(srcType))
  10867. return createValue(no_address, refType, createValue(no_index, makeCharType(), ensureIndexable(source), LINK(index)));
  10868. }
  10869. return createValue(no_add, refType, ensureIndexable(source), LINK(index));
  10870. }
  10871. IHqlExpression * HqlCppTranslator::getIndexedElementPointer(IHqlExpression * source, unsigned index)
  10872. {
  10873. if (!index)
  10874. return getElementPointer(source);
  10875. OwnedHqlExpr ival = getSizetConstant(index);
  10876. return getIndexedElementPointer(source, ival);
  10877. }
  10878. IHqlExpression * HqlCppTranslator::needFunction(IIdAtom * name)
  10879. {
  10880. assertex(name);
  10881. HqlDummyLookupContext dummyctx(errors);
  10882. return internalScope->lookupSymbol(name, LSFsharedOK, dummyctx);
  10883. }
  10884. unsigned HqlCppTranslator::processHint(IHqlExpression * expr)
  10885. {
  10886. unsigned oldHints = hints;
  10887. IAtom * hint = NULL; // MORE how do I get this?
  10888. if (hint == sizeAtom)
  10889. hints = (hints & ~(HintSpeed|HintSize)) | HintSize;
  10890. else if (hint == speedAtom)
  10891. hints = (hints & ~(HintSize|HintSpeed)) | HintSpeed;
  10892. return oldHints;
  10893. }
  10894. bool HqlCppTranslator::childrenRequireTemp(BuildCtx & ctx, IHqlExpression * expr, bool includeChildren)
  10895. {
  10896. unsigned numArgs = expr->numChildren();
  10897. for (unsigned index = 0; index < numArgs; index++)
  10898. if (requiresTemp(ctx, expr->queryChild(index), includeChildren))
  10899. return true;
  10900. return false;
  10901. }
  10902. bool HqlCppTranslator::requiresTemp(BuildCtx & ctx, IHqlExpression * expr, bool includeChildren)
  10903. {
  10904. switch (expr->getOperator())
  10905. {
  10906. case no_attr:
  10907. case no_attr_link:
  10908. case no_attr_expr:
  10909. case no_quoted:
  10910. case no_variable:
  10911. case no_constant:
  10912. case no_translated:
  10913. case no_matchtext:
  10914. case no_matchunicode:
  10915. case no_matchlength:
  10916. case no_matchattr:
  10917. case no_matchrow:
  10918. case no_matchutf8:
  10919. case no_libraryinput:
  10920. return false;
  10921. case no_getresult:
  10922. case no_getgraphresult:
  10923. case no_workunit_dataset:
  10924. return false; // if in an activity, then will be in setContext, if not then don't really care
  10925. case no_preservemeta:
  10926. return requiresTemp(ctx, expr->queryChild(0), includeChildren);
  10927. case no_alias:
  10928. {
  10929. if (expr->isPure() && ctx.queryMatchExpr(expr->queryChild(0)))
  10930. return false;
  10931. if (!containsActiveDataset(expr)) // generates a earlier temp even if generating within the onCreate() function
  10932. return false;
  10933. return true;
  10934. }
  10935. case no_select:
  10936. {
  10937. bool isNew;
  10938. IHqlExpression * ds = querySelectorDataset(expr, isNew);
  10939. if (isNew)
  10940. {
  10941. if (!ds->isPure() || !ds->isDatarow())
  10942. return true;
  10943. if (!ctx.queryAssociation(ds, AssocRow, NULL))
  10944. return true;
  10945. }
  10946. return false;
  10947. }
  10948. case no_field:
  10949. throwUnexpected();
  10950. return false; // more, depends on whether conditional etc.
  10951. case no_sizeof:
  10952. case no_offsetof:
  10953. return false; /// auto creates one anyway.
  10954. case no_typetransfer:
  10955. switch (expr->queryChild(0)->queryType()->getTypeCode())
  10956. {
  10957. case type_qstring:
  10958. case type_string:
  10959. case type_data:
  10960. case type_varstring:
  10961. break;
  10962. default:
  10963. return true;
  10964. }
  10965. break;
  10966. case no_substring:
  10967. {
  10968. SubStringInfo info(expr);
  10969. if (!info.canGenerateInline() && !expr->hasAttribute(quickAtom))
  10970. return true;
  10971. break;
  10972. }
  10973. case no_call:
  10974. case no_externalcall:
  10975. {
  10976. ITypeInfo * type = expr->queryType();
  10977. switch (type->getTypeCode())
  10978. {
  10979. case type_string:
  10980. case type_data:
  10981. case type_qstring:
  10982. case type_varstring:
  10983. case type_unicode:
  10984. case type_varunicode:
  10985. case type_utf8:
  10986. return true;
  10987. }
  10988. break;
  10989. }
  10990. case no_cast:
  10991. case no_implicitcast:
  10992. {
  10993. ITypeInfo * type = expr->queryType();
  10994. IHqlExpression * child = expr->queryChild(0);
  10995. switch (type->getTypeCode())
  10996. {
  10997. case type_string:
  10998. case type_data:
  10999. if (!canRemoveStringCast(type, child->queryType()))
  11000. return true;
  11001. break;
  11002. case type_varstring:
  11003. if ((type->getSize() != UNKNOWN_LENGTH) || (child->queryType()->getTypeCode() != type_varstring))
  11004. return true;
  11005. break;
  11006. }
  11007. }
  11008. break;
  11009. case no_eq:
  11010. case no_ne:
  11011. case no_lt:
  11012. case no_le:
  11013. case no_gt:
  11014. case no_ge:
  11015. {
  11016. if (!includeChildren)
  11017. return false;
  11018. unsigned numArgs = expr->numChildren();
  11019. for (unsigned index = 0; index < numArgs; index++)
  11020. {
  11021. OwnedHqlExpr cur = getSimplifyCompareArg(expr->queryChild(index));
  11022. //decimal comparisons can't be short circuited because they might cause a bcd stack overflow.
  11023. if (cur->queryType()->getTypeCode() == type_decimal)
  11024. return true;
  11025. if (requiresTemp(ctx, cur, true))
  11026. return true;
  11027. }
  11028. return false;
  11029. }
  11030. case no_mul:
  11031. case no_div:
  11032. case no_modulus:
  11033. case no_add:
  11034. case no_sub:
  11035. case no_and:
  11036. case no_or:
  11037. case no_xor:
  11038. case no_lshift:
  11039. case no_rshift:
  11040. case no_comma:
  11041. case no_compound:
  11042. case no_band:
  11043. case no_bor:
  11044. case no_bxor:
  11045. case no_pselect:
  11046. case no_index:
  11047. case no_postinc:
  11048. case no_postdec:
  11049. case no_negate:
  11050. case no_not:
  11051. case no_bnot:
  11052. case no_address:
  11053. case no_deref:
  11054. case no_preinc:
  11055. case no_predec:
  11056. case no_if:
  11057. case no_charlen:
  11058. break;
  11059. case no_between:
  11060. //Assume the worse for decimals.
  11061. if (expr->queryChild(0)->queryType()->getTypeCode() == type_decimal)
  11062. return true;
  11063. break;
  11064. case no_order:
  11065. case no_crc:
  11066. case no_hash:
  11067. case no_hash32:
  11068. case no_hash64:
  11069. case no_hashmd5:
  11070. case no_abs:
  11071. return true;
  11072. default:
  11073. return true;
  11074. }
  11075. if (includeChildren)
  11076. return childrenRequireTemp(ctx, expr, includeChildren);
  11077. return false;
  11078. }
  11079. bool HqlCppTranslator::requiresTempAfterFirst(BuildCtx & ctx, IHqlExpression * expr)
  11080. {
  11081. unsigned numArgs = expr->numChildren();
  11082. for (unsigned index = 1; index < numArgs; index++)
  11083. if (requiresTemp(ctx, expr->queryChild(index), true))
  11084. return true;
  11085. return false;
  11086. }
  11087. void HqlCppTranslator::useFunction(IHqlExpression * func)
  11088. {
  11089. code->useFunction(func);
  11090. }
  11091. void HqlCppTranslator::useLibrary(const char * libname)
  11092. {
  11093. code->useLibrary(libname);
  11094. }
  11095. //===========================================================================
  11096. static unique_id_t queryInstance = 0;
  11097. HqlQueryInstance::HqlQueryInstance()
  11098. {
  11099. instance = ++queryInstance;
  11100. }
  11101. StringBuffer & HqlQueryInstance::queryDllName(StringBuffer & out)
  11102. {
  11103. return out.append("query").append(instance);
  11104. }