clang  8.0.0svn
RewriteObjCFoundationAPI.cpp
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1 //===--- RewriteObjCFoundationAPI.cpp - Foundation API Rewriter -----------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // Rewrites legacy method calls to modern syntax.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "clang/Edit/Rewriters.h"
15 #include "clang/AST/ASTContext.h"
16 #include "clang/AST/ExprCXX.h"
17 #include "clang/AST/ExprObjC.h"
18 #include "clang/AST/NSAPI.h"
19 #include "clang/AST/ParentMap.h"
20 #include "clang/Edit/Commit.h"
21 #include "clang/Lex/Lexer.h"
22 
23 using namespace clang;
24 using namespace edit;
25 
27  IdentifierInfo *&ClassId,
28  const LangOptions &LangOpts) {
29  if (!Msg || Msg->isImplicit() || !Msg->getMethodDecl())
30  return false;
31 
32  const ObjCInterfaceDecl *Receiver = Msg->getReceiverInterface();
33  if (!Receiver)
34  return false;
35  ClassId = Receiver->getIdentifier();
36 
38  return true;
39 
40  // When in ARC mode we also convert "[[.. alloc] init]" messages to literals,
41  // since the change from +1 to +0 will be handled fine by ARC.
42  if (LangOpts.ObjCAutoRefCount) {
44  if (const ObjCMessageExpr *Rec = dyn_cast<ObjCMessageExpr>(
46  if (Rec->getMethodFamily() == OMF_alloc)
47  return true;
48  }
49  }
50  }
51 
52  return false;
53 }
54 
55 //===----------------------------------------------------------------------===//
56 // rewriteObjCRedundantCallWithLiteral.
57 //===----------------------------------------------------------------------===//
58 
60  const NSAPI &NS, Commit &commit) {
61  IdentifierInfo *II = nullptr;
63  return false;
64  if (Msg->getNumArgs() != 1)
65  return false;
66 
67  const Expr *Arg = Msg->getArg(0)->IgnoreParenImpCasts();
68  Selector Sel = Msg->getSelector();
69 
70  if ((isa<ObjCStringLiteral>(Arg) &&
74 
75  (isa<ObjCArrayLiteral>(Arg) &&
79 
80  (isa<ObjCDictionaryLiteral>(Arg) &&
85 
86  commit.replaceWithInner(Msg->getSourceRange(),
87  Msg->getArg(0)->getSourceRange());
88  return true;
89  }
90 
91  return false;
92 }
93 
94 //===----------------------------------------------------------------------===//
95 // rewriteToObjCSubscriptSyntax.
96 //===----------------------------------------------------------------------===//
97 
98 /// Check for classes that accept 'objectForKey:' (or the other selectors
99 /// that the migrator handles) but return their instances as 'id', resulting
100 /// in the compiler resolving 'objectForKey:' as the method from NSDictionary.
101 ///
102 /// When checking if we can convert to subscripting syntax, check whether
103 /// the receiver is a result of a class method from a hardcoded list of
104 /// such classes. In such a case return the specific class as the interface
105 /// of the receiver.
106 ///
107 /// FIXME: Remove this when these classes start using 'instancetype'.
108 static const ObjCInterfaceDecl *
110  const Expr *Receiver,
111  ASTContext &Ctx) {
112  assert(IFace && Receiver);
113 
114  // If the receiver has type 'id'...
115  if (!Ctx.isObjCIdType(Receiver->getType().getUnqualifiedType()))
116  return IFace;
117 
118  const ObjCMessageExpr *
119  InnerMsg = dyn_cast<ObjCMessageExpr>(Receiver->IgnoreParenCasts());
120  if (!InnerMsg)
121  return IFace;
122 
123  QualType ClassRec;
124  switch (InnerMsg->getReceiverKind()) {
127  return IFace;
128 
130  ClassRec = InnerMsg->getClassReceiver();
131  break;
133  ClassRec = InnerMsg->getSuperType();
134  break;
135  }
136 
137  if (ClassRec.isNull())
138  return IFace;
139 
140  // ...and it is the result of a class message...
141 
142  const ObjCObjectType *ObjTy = ClassRec->getAs<ObjCObjectType>();
143  if (!ObjTy)
144  return IFace;
145  const ObjCInterfaceDecl *OID = ObjTy->getInterface();
146 
147  // ...and the receiving class is NSMapTable or NSLocale, return that
148  // class as the receiving interface.
149  if (OID->getName() == "NSMapTable" ||
150  OID->getName() == "NSLocale")
151  return OID;
152 
153  return IFace;
154 }
155 
157  const ObjCMessageExpr *Msg,
158  ASTContext &Ctx,
159  Selector subscriptSel) {
160  const Expr *Rec = Msg->getInstanceReceiver();
161  if (!Rec)
162  return false;
163  IFace = maybeAdjustInterfaceForSubscriptingCheck(IFace, Rec, Ctx);
164 
165  if (const ObjCMethodDecl *MD = IFace->lookupInstanceMethod(subscriptSel)) {
166  if (!MD->isUnavailable())
167  return true;
168  }
169  return false;
170 }
171 
172 static bool subscriptOperatorNeedsParens(const Expr *FullExpr);
173 
174 static void maybePutParensOnReceiver(const Expr *Receiver, Commit &commit) {
175  if (subscriptOperatorNeedsParens(Receiver)) {
176  SourceRange RecRange = Receiver->getSourceRange();
177  commit.insertWrap("(", RecRange, ")");
178  }
179 }
180 
182  Commit &commit) {
183  if (Msg->getNumArgs() != 1)
184  return false;
185  const Expr *Rec = Msg->getInstanceReceiver();
186  if (!Rec)
187  return false;
188 
189  SourceRange MsgRange = Msg->getSourceRange();
190  SourceRange RecRange = Rec->getSourceRange();
191  SourceRange ArgRange = Msg->getArg(0)->getSourceRange();
192 
194  ArgRange.getBegin()),
196  commit.replaceWithInner(SourceRange(ArgRange.getBegin(), MsgRange.getEnd()),
197  ArgRange);
198  commit.insertWrap("[", ArgRange, "]");
199  maybePutParensOnReceiver(Rec, commit);
200  return true;
201 }
202 
204  const ObjCMessageExpr *Msg,
205  const NSAPI &NS,
206  Commit &commit) {
207  if (!canRewriteToSubscriptSyntax(IFace, Msg, NS.getASTContext(),
209  return false;
210  return rewriteToSubscriptGetCommon(Msg, commit);
211 }
212 
214  const ObjCMessageExpr *Msg,
215  const NSAPI &NS,
216  Commit &commit) {
217  if (!canRewriteToSubscriptSyntax(IFace, Msg, NS.getASTContext(),
219  return false;
220  return rewriteToSubscriptGetCommon(Msg, commit);
221 }
222 
224  const ObjCMessageExpr *Msg,
225  const NSAPI &NS,
226  Commit &commit) {
227  if (!canRewriteToSubscriptSyntax(IFace, Msg, NS.getASTContext(),
229  return false;
230 
231  if (Msg->getNumArgs() != 2)
232  return false;
233  const Expr *Rec = Msg->getInstanceReceiver();
234  if (!Rec)
235  return false;
236 
237  SourceRange MsgRange = Msg->getSourceRange();
238  SourceRange RecRange = Rec->getSourceRange();
239  SourceRange Arg0Range = Msg->getArg(0)->getSourceRange();
240  SourceRange Arg1Range = Msg->getArg(1)->getSourceRange();
241 
243  Arg0Range.getBegin()),
246  Arg1Range.getBegin()),
247  CharSourceRange::getTokenRange(Arg0Range));
248  commit.replaceWithInner(SourceRange(Arg1Range.getBegin(), MsgRange.getEnd()),
249  Arg1Range);
250  commit.insertWrap("[", CharSourceRange::getCharRange(Arg0Range.getBegin(),
251  Arg1Range.getBegin()),
252  "] = ");
253  maybePutParensOnReceiver(Rec, commit);
254  return true;
255 }
256 
258  const ObjCMessageExpr *Msg,
259  const NSAPI &NS,
260  Commit &commit) {
261  if (!canRewriteToSubscriptSyntax(IFace, Msg, NS.getASTContext(),
263  return false;
264 
265  if (Msg->getNumArgs() != 2)
266  return false;
267  const Expr *Rec = Msg->getInstanceReceiver();
268  if (!Rec)
269  return false;
270 
271  SourceRange MsgRange = Msg->getSourceRange();
272  SourceRange RecRange = Rec->getSourceRange();
273  SourceRange Arg0Range = Msg->getArg(0)->getSourceRange();
274  SourceRange Arg1Range = Msg->getArg(1)->getSourceRange();
275 
276  SourceLocation LocBeforeVal = Arg0Range.getBegin();
277  commit.insertBefore(LocBeforeVal, "] = ");
278  commit.insertFromRange(LocBeforeVal, Arg1Range, /*afterToken=*/false,
279  /*beforePreviousInsertions=*/true);
280  commit.insertBefore(LocBeforeVal, "[");
282  Arg0Range.getBegin()),
284  commit.replaceWithInner(SourceRange(Arg0Range.getBegin(), MsgRange.getEnd()),
285  Arg0Range);
286  maybePutParensOnReceiver(Rec, commit);
287  return true;
288 }
289 
291  const NSAPI &NS, Commit &commit) {
292  if (!Msg || Msg->isImplicit() ||
294  return false;
295  const ObjCMethodDecl *Method = Msg->getMethodDecl();
296  if (!Method)
297  return false;
298 
299  const ObjCInterfaceDecl *IFace =
301  if (!IFace)
302  return false;
303  Selector Sel = Msg->getSelector();
304 
306  return rewriteToArraySubscriptGet(IFace, Msg, NS, commit);
307 
309  return rewriteToDictionarySubscriptGet(IFace, Msg, NS, commit);
310 
311  if (Msg->getNumArgs() != 2)
312  return false;
313 
315  return rewriteToArraySubscriptSet(IFace, Msg, NS, commit);
316 
318  return rewriteToDictionarySubscriptSet(IFace, Msg, NS, commit);
319 
320  return false;
321 }
322 
323 //===----------------------------------------------------------------------===//
324 // rewriteToObjCLiteralSyntax.
325 //===----------------------------------------------------------------------===//
326 
327 static bool rewriteToArrayLiteral(const ObjCMessageExpr *Msg,
328  const NSAPI &NS, Commit &commit,
329  const ParentMap *PMap);
330 static bool rewriteToDictionaryLiteral(const ObjCMessageExpr *Msg,
331  const NSAPI &NS, Commit &commit);
332 static bool rewriteToNumberLiteral(const ObjCMessageExpr *Msg,
333  const NSAPI &NS, Commit &commit);
334 static bool rewriteToNumericBoxedExpression(const ObjCMessageExpr *Msg,
335  const NSAPI &NS, Commit &commit);
336 static bool rewriteToStringBoxedExpression(const ObjCMessageExpr *Msg,
337  const NSAPI &NS, Commit &commit);
338 
340  const NSAPI &NS, Commit &commit,
341  const ParentMap *PMap) {
342  IdentifierInfo *II = nullptr;
343  if (!checkForLiteralCreation(Msg, II, NS.getASTContext().getLangOpts()))
344  return false;
345 
346  if (II == NS.getNSClassId(NSAPI::ClassId_NSArray))
347  return rewriteToArrayLiteral(Msg, NS, commit, PMap);
349  return rewriteToDictionaryLiteral(Msg, NS, commit);
351  return rewriteToNumberLiteral(Msg, NS, commit);
353  return rewriteToStringBoxedExpression(Msg, NS, commit);
354 
355  return false;
356 }
357 
358 /// Returns true if the immediate message arguments of \c Msg should not
359 /// be rewritten because it will interfere with the rewrite of the parent
360 /// message expression. e.g.
361 /// \code
362 /// [NSDictionary dictionaryWithObjects:
363 /// [NSArray arrayWithObjects:@"1", @"2", nil]
364 /// forKeys:[NSArray arrayWithObjects:@"A", @"B", nil]];
365 /// \endcode
366 /// It will return true for this because we are going to rewrite this directly
367 /// to a dictionary literal without any array literals.
369  const NSAPI &NS);
370 
371 //===----------------------------------------------------------------------===//
372 // rewriteToArrayLiteral.
373 //===----------------------------------------------------------------------===//
374 
375 /// Adds an explicit cast to 'id' if the type is not objc object.
376 static void objectifyExpr(const Expr *E, Commit &commit);
377 
378 static bool rewriteToArrayLiteral(const ObjCMessageExpr *Msg,
379  const NSAPI &NS, Commit &commit,
380  const ParentMap *PMap) {
381  if (PMap) {
382  const ObjCMessageExpr *ParentMsg =
383  dyn_cast_or_null<ObjCMessageExpr>(PMap->getParentIgnoreParenCasts(Msg));
384  if (shouldNotRewriteImmediateMessageArgs(ParentMsg, NS))
385  return false;
386  }
387 
388  Selector Sel = Msg->getSelector();
389  SourceRange MsgRange = Msg->getSourceRange();
390 
391  if (Sel == NS.getNSArraySelector(NSAPI::NSArr_array)) {
392  if (Msg->getNumArgs() != 0)
393  return false;
394  commit.replace(MsgRange, "@[]");
395  return true;
396  }
397 
399  if (Msg->getNumArgs() != 1)
400  return false;
401  objectifyExpr(Msg->getArg(0), commit);
402  SourceRange ArgRange = Msg->getArg(0)->getSourceRange();
403  commit.replaceWithInner(MsgRange, ArgRange);
404  commit.insertWrap("@[", ArgRange, "]");
405  return true;
406  }
407 
410  if (Msg->getNumArgs() == 0)
411  return false;
412  const Expr *SentinelExpr = Msg->getArg(Msg->getNumArgs() - 1);
413  if (!NS.getASTContext().isSentinelNullExpr(SentinelExpr))
414  return false;
415 
416  for (unsigned i = 0, e = Msg->getNumArgs() - 1; i != e; ++i)
417  objectifyExpr(Msg->getArg(i), commit);
418 
419  if (Msg->getNumArgs() == 1) {
420  commit.replace(MsgRange, "@[]");
421  return true;
422  }
423  SourceRange ArgRange(Msg->getArg(0)->getBeginLoc(),
424  Msg->getArg(Msg->getNumArgs() - 2)->getEndLoc());
425  commit.replaceWithInner(MsgRange, ArgRange);
426  commit.insertWrap("@[", ArgRange, "]");
427  return true;
428  }
429 
430  return false;
431 }
432 
433 //===----------------------------------------------------------------------===//
434 // rewriteToDictionaryLiteral.
435 //===----------------------------------------------------------------------===//
436 
437 /// If \c Msg is an NSArray creation message or literal, this gets the
438 /// objects that were used to create it.
439 /// \returns true if it is an NSArray and we got objects, or false otherwise.
440 static bool getNSArrayObjects(const Expr *E, const NSAPI &NS,
442  if (!E)
443  return false;
444 
445  E = E->IgnoreParenCasts();
446  if (!E)
447  return false;
448 
449  if (const ObjCMessageExpr *Msg = dyn_cast<ObjCMessageExpr>(E)) {
450  IdentifierInfo *Cls = nullptr;
451  if (!checkForLiteralCreation(Msg, Cls, NS.getASTContext().getLangOpts()))
452  return false;
453 
454  if (Cls != NS.getNSClassId(NSAPI::ClassId_NSArray))
455  return false;
456 
457  Selector Sel = Msg->getSelector();
458  if (Sel == NS.getNSArraySelector(NSAPI::NSArr_array))
459  return true; // empty array.
460 
462  if (Msg->getNumArgs() != 1)
463  return false;
464  Objs.push_back(Msg->getArg(0));
465  return true;
466  }
467 
470  if (Msg->getNumArgs() == 0)
471  return false;
472  const Expr *SentinelExpr = Msg->getArg(Msg->getNumArgs() - 1);
473  if (!NS.getASTContext().isSentinelNullExpr(SentinelExpr))
474  return false;
475 
476  for (unsigned i = 0, e = Msg->getNumArgs() - 1; i != e; ++i)
477  Objs.push_back(Msg->getArg(i));
478  return true;
479  }
480 
481  } else if (const ObjCArrayLiteral *ArrLit = dyn_cast<ObjCArrayLiteral>(E)) {
482  for (unsigned i = 0, e = ArrLit->getNumElements(); i != e; ++i)
483  Objs.push_back(ArrLit->getElement(i));
484  return true;
485  }
486 
487  return false;
488 }
489 
491  const NSAPI &NS, Commit &commit) {
492  Selector Sel = Msg->getSelector();
493  SourceRange MsgRange = Msg->getSourceRange();
494 
496  if (Msg->getNumArgs() != 0)
497  return false;
498  commit.replace(MsgRange, "@{}");
499  return true;
500  }
501 
502  if (Sel == NS.getNSDictionarySelector(
504  if (Msg->getNumArgs() != 2)
505  return false;
506 
507  objectifyExpr(Msg->getArg(0), commit);
508  objectifyExpr(Msg->getArg(1), commit);
509 
510  SourceRange ValRange = Msg->getArg(0)->getSourceRange();
511  SourceRange KeyRange = Msg->getArg(1)->getSourceRange();
512  // Insert key before the value.
513  commit.insertBefore(ValRange.getBegin(), ": ");
514  commit.insertFromRange(ValRange.getBegin(),
516  /*afterToken=*/false, /*beforePreviousInsertions=*/true);
517  commit.insertBefore(ValRange.getBegin(), "@{");
518  commit.insertAfterToken(ValRange.getEnd(), "}");
519  commit.replaceWithInner(MsgRange, ValRange);
520  return true;
521  }
522 
523  if (Sel == NS.getNSDictionarySelector(
526  if (Msg->getNumArgs() % 2 != 1)
527  return false;
528  unsigned SentinelIdx = Msg->getNumArgs() - 1;
529  const Expr *SentinelExpr = Msg->getArg(SentinelIdx);
530  if (!NS.getASTContext().isSentinelNullExpr(SentinelExpr))
531  return false;
532 
533  if (Msg->getNumArgs() == 1) {
534  commit.replace(MsgRange, "@{}");
535  return true;
536  }
537 
538  for (unsigned i = 0; i < SentinelIdx; i += 2) {
539  objectifyExpr(Msg->getArg(i), commit);
540  objectifyExpr(Msg->getArg(i+1), commit);
541 
542  SourceRange ValRange = Msg->getArg(i)->getSourceRange();
543  SourceRange KeyRange = Msg->getArg(i+1)->getSourceRange();
544  // Insert value after key.
545  commit.insertAfterToken(KeyRange.getEnd(), ": ");
546  commit.insertFromRange(KeyRange.getEnd(), ValRange, /*afterToken=*/true);
547  commit.remove(CharSourceRange::getCharRange(ValRange.getBegin(),
548  KeyRange.getBegin()));
549  }
550  // Range of arguments up until and including the last key.
551  // The sentinel and first value are cut off, the value will move after the
552  // key.
553  SourceRange ArgRange(Msg->getArg(1)->getBeginLoc(),
554  Msg->getArg(SentinelIdx - 1)->getEndLoc());
555  commit.insertWrap("@{", ArgRange, "}");
556  commit.replaceWithInner(MsgRange, ArgRange);
557  return true;
558  }
559 
560  if (Sel == NS.getNSDictionarySelector(
563  if (Msg->getNumArgs() != 2)
564  return false;
565 
567  if (!getNSArrayObjects(Msg->getArg(0), NS, Vals))
568  return false;
569 
571  if (!getNSArrayObjects(Msg->getArg(1), NS, Keys))
572  return false;
573 
574  if (Vals.size() != Keys.size())
575  return false;
576 
577  if (Vals.empty()) {
578  commit.replace(MsgRange, "@{}");
579  return true;
580  }
581 
582  for (unsigned i = 0, n = Vals.size(); i < n; ++i) {
583  objectifyExpr(Vals[i], commit);
584  objectifyExpr(Keys[i], commit);
585 
586  SourceRange ValRange = Vals[i]->getSourceRange();
587  SourceRange KeyRange = Keys[i]->getSourceRange();
588  // Insert value after key.
589  commit.insertAfterToken(KeyRange.getEnd(), ": ");
590  commit.insertFromRange(KeyRange.getEnd(), ValRange, /*afterToken=*/true);
591  }
592  // Range of arguments up until and including the last key.
593  // The first value is cut off, the value will move after the key.
594  SourceRange ArgRange(Keys.front()->getBeginLoc(), Keys.back()->getEndLoc());
595  commit.insertWrap("@{", ArgRange, "}");
596  commit.replaceWithInner(MsgRange, ArgRange);
597  return true;
598  }
599 
600  return false;
601 }
602 
604  const NSAPI &NS) {
605  if (!Msg)
606  return false;
607 
608  IdentifierInfo *II = nullptr;
609  if (!checkForLiteralCreation(Msg, II, NS.getASTContext().getLangOpts()))
610  return false;
611 
613  return false;
614 
615  Selector Sel = Msg->getSelector();
616  if (Sel == NS.getNSDictionarySelector(
619  if (Msg->getNumArgs() != 2)
620  return false;
621 
623  if (!getNSArrayObjects(Msg->getArg(0), NS, Vals))
624  return false;
625 
627  if (!getNSArrayObjects(Msg->getArg(1), NS, Keys))
628  return false;
629 
630  if (Vals.size() != Keys.size())
631  return false;
632 
633  return true;
634  }
635 
636  return false;
637 }
638 
639 //===----------------------------------------------------------------------===//
640 // rewriteToNumberLiteral.
641 //===----------------------------------------------------------------------===//
642 
643 static bool rewriteToCharLiteral(const ObjCMessageExpr *Msg,
644  const CharacterLiteral *Arg,
645  const NSAPI &NS, Commit &commit) {
646  if (Arg->getKind() != CharacterLiteral::Ascii)
647  return false;
649  Msg->getSelector())) {
650  SourceRange ArgRange = Arg->getSourceRange();
651  commit.replaceWithInner(Msg->getSourceRange(), ArgRange);
652  commit.insert(ArgRange.getBegin(), "@");
653  return true;
654  }
655 
656  return rewriteToNumericBoxedExpression(Msg, NS, commit);
657 }
658 
659 static bool rewriteToBoolLiteral(const ObjCMessageExpr *Msg,
660  const Expr *Arg,
661  const NSAPI &NS, Commit &commit) {
663  Msg->getSelector())) {
664  SourceRange ArgRange = Arg->getSourceRange();
665  commit.replaceWithInner(Msg->getSourceRange(), ArgRange);
666  commit.insert(ArgRange.getBegin(), "@");
667  return true;
668  }
669 
670  return rewriteToNumericBoxedExpression(Msg, NS, commit);
671 }
672 
673 namespace {
674 
675 struct LiteralInfo {
676  bool Hex, Octal;
677  StringRef U, F, L, LL;
678  CharSourceRange WithoutSuffRange;
679 };
680 
681 }
682 
683 static bool getLiteralInfo(SourceRange literalRange,
684  bool isFloat, bool isIntZero,
685  ASTContext &Ctx, LiteralInfo &Info) {
686  if (literalRange.getBegin().isMacroID() ||
687  literalRange.getEnd().isMacroID())
688  return false;
689  StringRef text = Lexer::getSourceText(
690  CharSourceRange::getTokenRange(literalRange),
691  Ctx.getSourceManager(), Ctx.getLangOpts());
692  if (text.empty())
693  return false;
694 
695  Optional<bool> UpperU, UpperL;
696  bool UpperF = false;
697 
698  struct Suff {
699  static bool has(StringRef suff, StringRef &text) {
700  if (text.endswith(suff)) {
701  text = text.substr(0, text.size()-suff.size());
702  return true;
703  }
704  return false;
705  }
706  };
707 
708  while (1) {
709  if (Suff::has("u", text)) {
710  UpperU = false;
711  } else if (Suff::has("U", text)) {
712  UpperU = true;
713  } else if (Suff::has("ll", text)) {
714  UpperL = false;
715  } else if (Suff::has("LL", text)) {
716  UpperL = true;
717  } else if (Suff::has("l", text)) {
718  UpperL = false;
719  } else if (Suff::has("L", text)) {
720  UpperL = true;
721  } else if (isFloat && Suff::has("f", text)) {
722  UpperF = false;
723  } else if (isFloat && Suff::has("F", text)) {
724  UpperF = true;
725  } else
726  break;
727  }
728 
729  if (!UpperU.hasValue() && !UpperL.hasValue())
730  UpperU = UpperL = true;
731  else if (UpperU.hasValue() && !UpperL.hasValue())
732  UpperL = UpperU;
733  else if (UpperL.hasValue() && !UpperU.hasValue())
734  UpperU = UpperL;
735 
736  Info.U = *UpperU ? "U" : "u";
737  Info.L = *UpperL ? "L" : "l";
738  Info.LL = *UpperL ? "LL" : "ll";
739  Info.F = UpperF ? "F" : "f";
740 
741  Info.Hex = Info.Octal = false;
742  if (text.startswith("0x"))
743  Info.Hex = true;
744  else if (!isFloat && !isIntZero && text.startswith("0"))
745  Info.Octal = true;
746 
747  SourceLocation B = literalRange.getBegin();
748  Info.WithoutSuffRange =
749  CharSourceRange::getCharRange(B, B.getLocWithOffset(text.size()));
750  return true;
751 }
752 
754  const NSAPI &NS, Commit &commit) {
755  if (Msg->getNumArgs() != 1)
756  return false;
757 
758  const Expr *Arg = Msg->getArg(0)->IgnoreParenImpCasts();
759  if (const CharacterLiteral *CharE = dyn_cast<CharacterLiteral>(Arg))
760  return rewriteToCharLiteral(Msg, CharE, NS, commit);
761  if (const ObjCBoolLiteralExpr *BE = dyn_cast<ObjCBoolLiteralExpr>(Arg))
762  return rewriteToBoolLiteral(Msg, BE, NS, commit);
763  if (const CXXBoolLiteralExpr *BE = dyn_cast<CXXBoolLiteralExpr>(Arg))
764  return rewriteToBoolLiteral(Msg, BE, NS, commit);
765 
766  const Expr *literalE = Arg;
767  if (const UnaryOperator *UOE = dyn_cast<UnaryOperator>(literalE)) {
768  if (UOE->getOpcode() == UO_Plus || UOE->getOpcode() == UO_Minus)
769  literalE = UOE->getSubExpr();
770  }
771 
772  // Only integer and floating literals, otherwise try to rewrite to boxed
773  // expression.
774  if (!isa<IntegerLiteral>(literalE) && !isa<FloatingLiteral>(literalE))
775  return rewriteToNumericBoxedExpression(Msg, NS, commit);
776 
777  ASTContext &Ctx = NS.getASTContext();
778  Selector Sel = Msg->getSelector();
780  MKOpt = NS.getNSNumberLiteralMethodKind(Sel);
781  if (!MKOpt)
782  return false;
784 
785  bool CallIsUnsigned = false, CallIsLong = false, CallIsLongLong = false;
786  bool CallIsFloating = false, CallIsDouble = false;
787 
788  switch (MK) {
789  // We cannot have these calls with int/float literals.
795  return rewriteToNumericBoxedExpression(Msg, NS, commit);
796 
799  CallIsUnsigned = true;
800  LLVM_FALLTHROUGH;
803  break;
804 
806  CallIsUnsigned = true;
807  LLVM_FALLTHROUGH;
809  CallIsLong = true;
810  break;
811 
813  CallIsUnsigned = true;
814  LLVM_FALLTHROUGH;
816  CallIsLongLong = true;
817  break;
818 
820  CallIsDouble = true;
821  LLVM_FALLTHROUGH;
823  CallIsFloating = true;
824  break;
825  }
826 
827  SourceRange ArgRange = Arg->getSourceRange();
828  QualType ArgTy = Arg->getType();
829  QualType CallTy = Msg->getArg(0)->getType();
830 
831  // Check for the easy case, the literal maps directly to the call.
832  if (Ctx.hasSameType(ArgTy, CallTy)) {
833  commit.replaceWithInner(Msg->getSourceRange(), ArgRange);
834  commit.insert(ArgRange.getBegin(), "@");
835  return true;
836  }
837 
838  // We will need to modify the literal suffix to get the same type as the call.
839  // Try with boxed expression if it came from a macro.
840  if (ArgRange.getBegin().isMacroID())
841  return rewriteToNumericBoxedExpression(Msg, NS, commit);
842 
843  bool LitIsFloat = ArgTy->isFloatingType();
844  // For a float passed to integer call, don't try rewriting to objc literal.
845  // It is difficult and a very uncommon case anyway.
846  // But try with boxed expression.
847  if (LitIsFloat && !CallIsFloating)
848  return rewriteToNumericBoxedExpression(Msg, NS, commit);
849 
850  // Try to modify the literal make it the same type as the method call.
851  // -Modify the suffix, and/or
852  // -Change integer to float
853 
854  LiteralInfo LitInfo;
855  bool isIntZero = false;
856  if (const IntegerLiteral *IntE = dyn_cast<IntegerLiteral>(literalE))
857  isIntZero = !IntE->getValue().getBoolValue();
858  if (!getLiteralInfo(ArgRange, LitIsFloat, isIntZero, Ctx, LitInfo))
859  return rewriteToNumericBoxedExpression(Msg, NS, commit);
860 
861  // Not easy to do int -> float with hex/octal and uncommon anyway.
862  if (!LitIsFloat && CallIsFloating && (LitInfo.Hex || LitInfo.Octal))
863  return rewriteToNumericBoxedExpression(Msg, NS, commit);
864 
865  SourceLocation LitB = LitInfo.WithoutSuffRange.getBegin();
866  SourceLocation LitE = LitInfo.WithoutSuffRange.getEnd();
867 
869  LitInfo.WithoutSuffRange);
870  commit.insert(LitB, "@");
871 
872  if (!LitIsFloat && CallIsFloating)
873  commit.insert(LitE, ".0");
874 
875  if (CallIsFloating) {
876  if (!CallIsDouble)
877  commit.insert(LitE, LitInfo.F);
878  } else {
879  if (CallIsUnsigned)
880  commit.insert(LitE, LitInfo.U);
881 
882  if (CallIsLong)
883  commit.insert(LitE, LitInfo.L);
884  else if (CallIsLongLong)
885  commit.insert(LitE, LitInfo.LL);
886  }
887  return true;
888 }
889 
890 // FIXME: Make determination of operator precedence more general and
891 // make it broadly available.
892 static bool subscriptOperatorNeedsParens(const Expr *FullExpr) {
893  const Expr* Expr = FullExpr->IgnoreImpCasts();
894  if (isa<ArraySubscriptExpr>(Expr) ||
895  isa<CallExpr>(Expr) ||
896  isa<DeclRefExpr>(Expr) ||
897  isa<CXXNamedCastExpr>(Expr) ||
898  isa<CXXConstructExpr>(Expr) ||
899  isa<CXXThisExpr>(Expr) ||
900  isa<CXXTypeidExpr>(Expr) ||
901  isa<CXXUnresolvedConstructExpr>(Expr) ||
902  isa<ObjCMessageExpr>(Expr) ||
903  isa<ObjCPropertyRefExpr>(Expr) ||
904  isa<ObjCProtocolExpr>(Expr) ||
905  isa<MemberExpr>(Expr) ||
906  isa<ObjCIvarRefExpr>(Expr) ||
907  isa<ParenExpr>(FullExpr) ||
908  isa<ParenListExpr>(Expr) ||
909  isa<SizeOfPackExpr>(Expr))
910  return false;
911 
912  return true;
913 }
914 static bool castOperatorNeedsParens(const Expr *FullExpr) {
915  const Expr* Expr = FullExpr->IgnoreImpCasts();
916  if (isa<ArraySubscriptExpr>(Expr) ||
917  isa<CallExpr>(Expr) ||
918  isa<DeclRefExpr>(Expr) ||
919  isa<CastExpr>(Expr) ||
920  isa<CXXNewExpr>(Expr) ||
921  isa<CXXConstructExpr>(Expr) ||
922  isa<CXXDeleteExpr>(Expr) ||
923  isa<CXXNoexceptExpr>(Expr) ||
924  isa<CXXPseudoDestructorExpr>(Expr) ||
925  isa<CXXScalarValueInitExpr>(Expr) ||
926  isa<CXXThisExpr>(Expr) ||
927  isa<CXXTypeidExpr>(Expr) ||
928  isa<CXXUnresolvedConstructExpr>(Expr) ||
929  isa<ObjCMessageExpr>(Expr) ||
930  isa<ObjCPropertyRefExpr>(Expr) ||
931  isa<ObjCProtocolExpr>(Expr) ||
932  isa<MemberExpr>(Expr) ||
933  isa<ObjCIvarRefExpr>(Expr) ||
934  isa<ParenExpr>(FullExpr) ||
935  isa<ParenListExpr>(Expr) ||
936  isa<SizeOfPackExpr>(Expr) ||
937  isa<UnaryOperator>(Expr))
938  return false;
939 
940  return true;
941 }
942 
943 static void objectifyExpr(const Expr *E, Commit &commit) {
944  if (!E) return;
945 
946  QualType T = E->getType();
947  if (T->isObjCObjectPointerType()) {
948  if (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)) {
949  if (ICE->getCastKind() != CK_CPointerToObjCPointerCast)
950  return;
951  } else {
952  return;
953  }
954  } else if (!T->isPointerType()) {
955  return;
956  }
957 
958  SourceRange Range = E->getSourceRange();
960  commit.insertWrap("(", Range, ")");
961  commit.insertBefore(Range.getBegin(), "(id)");
962 }
963 
964 //===----------------------------------------------------------------------===//
965 // rewriteToNumericBoxedExpression.
966 //===----------------------------------------------------------------------===//
967 
968 static bool isEnumConstant(const Expr *E) {
969  if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParenImpCasts()))
970  if (const ValueDecl *VD = DRE->getDecl())
971  return isa<EnumConstantDecl>(VD);
972 
973  return false;
974 }
975 
977  const NSAPI &NS, Commit &commit) {
978  if (Msg->getNumArgs() != 1)
979  return false;
980 
981  const Expr *Arg = Msg->getArg(0);
982  if (Arg->isTypeDependent())
983  return false;
984 
985  ASTContext &Ctx = NS.getASTContext();
986  Selector Sel = Msg->getSelector();
988  MKOpt = NS.getNSNumberLiteralMethodKind(Sel);
989  if (!MKOpt)
990  return false;
992 
993  const Expr *OrigArg = Arg->IgnoreImpCasts();
994  QualType FinalTy = Arg->getType();
995  QualType OrigTy = OrigArg->getType();
996  uint64_t FinalTySize = Ctx.getTypeSize(FinalTy);
997  uint64_t OrigTySize = Ctx.getTypeSize(OrigTy);
998 
999  bool isTruncated = FinalTySize < OrigTySize;
1000  bool needsCast = false;
1001 
1002  if (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(Arg)) {
1003  switch (ICE->getCastKind()) {
1004  case CK_LValueToRValue:
1005  case CK_NoOp:
1006  case CK_UserDefinedConversion:
1007  break;
1008 
1009  case CK_IntegralCast: {
1010  if (MK == NSAPI::NSNumberWithBool && OrigTy->isBooleanType())
1011  break;
1012  // Be more liberal with Integer/UnsignedInteger which are very commonly
1013  // used.
1014  if ((MK == NSAPI::NSNumberWithInteger ||
1016  !isTruncated) {
1017  if (OrigTy->getAs<EnumType>() || isEnumConstant(OrigArg))
1018  break;
1019  if ((MK==NSAPI::NSNumberWithInteger) == OrigTy->isSignedIntegerType() &&
1020  OrigTySize >= Ctx.getTypeSize(Ctx.IntTy))
1021  break;
1022  }
1023 
1024  needsCast = true;
1025  break;
1026  }
1027 
1028  case CK_PointerToBoolean:
1029  case CK_IntegralToBoolean:
1030  case CK_IntegralToFloating:
1031  case CK_FloatingToIntegral:
1032  case CK_FloatingToBoolean:
1033  case CK_FloatingCast:
1034  case CK_FloatingComplexToReal:
1035  case CK_FloatingComplexToBoolean:
1036  case CK_IntegralComplexToReal:
1037  case CK_IntegralComplexToBoolean:
1038  case CK_AtomicToNonAtomic:
1039  case CK_AddressSpaceConversion:
1040  needsCast = true;
1041  break;
1042 
1043  case CK_Dependent:
1044  case CK_BitCast:
1045  case CK_LValueBitCast:
1046  case CK_BaseToDerived:
1047  case CK_DerivedToBase:
1048  case CK_UncheckedDerivedToBase:
1049  case CK_Dynamic:
1050  case CK_ToUnion:
1051  case CK_ArrayToPointerDecay:
1052  case CK_FunctionToPointerDecay:
1053  case CK_NullToPointer:
1054  case CK_NullToMemberPointer:
1055  case CK_BaseToDerivedMemberPointer:
1056  case CK_DerivedToBaseMemberPointer:
1057  case CK_MemberPointerToBoolean:
1058  case CK_ReinterpretMemberPointer:
1059  case CK_ConstructorConversion:
1060  case CK_IntegralToPointer:
1061  case CK_PointerToIntegral:
1062  case CK_ToVoid:
1063  case CK_VectorSplat:
1064  case CK_CPointerToObjCPointerCast:
1065  case CK_BlockPointerToObjCPointerCast:
1066  case CK_AnyPointerToBlockPointerCast:
1067  case CK_ObjCObjectLValueCast:
1068  case CK_FloatingRealToComplex:
1069  case CK_FloatingComplexCast:
1070  case CK_FloatingComplexToIntegralComplex:
1071  case CK_IntegralRealToComplex:
1072  case CK_IntegralComplexCast:
1073  case CK_IntegralComplexToFloatingComplex:
1074  case CK_ARCProduceObject:
1075  case CK_ARCConsumeObject:
1076  case CK_ARCReclaimReturnedObject:
1077  case CK_ARCExtendBlockObject:
1078  case CK_NonAtomicToAtomic:
1079  case CK_CopyAndAutoreleaseBlockObject:
1080  case CK_BuiltinFnToFnPtr:
1081  case CK_ZeroToOCLEvent:
1082  case CK_ZeroToOCLQueue:
1083  case CK_IntToOCLSampler:
1084  return false;
1085 
1086  case CK_BooleanToSignedIntegral:
1087  llvm_unreachable("OpenCL-specific cast in Objective-C?");
1088 
1089  case CK_FixedPointCast:
1090  llvm_unreachable("Fixed point types are disabled for Objective-C");
1091  }
1092  }
1093 
1094  if (needsCast) {
1095  DiagnosticsEngine &Diags = Ctx.getDiagnostics();
1096  // FIXME: Use a custom category name to distinguish migration diagnostics.
1097  unsigned diagID = Diags.getCustomDiagID(DiagnosticsEngine::Warning,
1098  "converting to boxing syntax requires casting %0 to %1");
1099  Diags.Report(Msg->getExprLoc(), diagID) << OrigTy << FinalTy
1100  << Msg->getSourceRange();
1101  return false;
1102  }
1103 
1104  SourceRange ArgRange = OrigArg->getSourceRange();
1105  commit.replaceWithInner(Msg->getSourceRange(), ArgRange);
1106 
1107  if (isa<ParenExpr>(OrigArg) || isa<IntegerLiteral>(OrigArg))
1108  commit.insertBefore(ArgRange.getBegin(), "@");
1109  else
1110  commit.insertWrap("@(", ArgRange, ")");
1111 
1112  return true;
1113 }
1114 
1115 //===----------------------------------------------------------------------===//
1116 // rewriteToStringBoxedExpression.
1117 //===----------------------------------------------------------------------===//
1118 
1120  const ObjCMessageExpr *Msg,
1121  const NSAPI &NS, Commit &commit) {
1122  const Expr *Arg = Msg->getArg(0);
1123  if (Arg->isTypeDependent())
1124  return false;
1125 
1126  ASTContext &Ctx = NS.getASTContext();
1127 
1128  const Expr *OrigArg = Arg->IgnoreImpCasts();
1129  QualType OrigTy = OrigArg->getType();
1130  if (OrigTy->isArrayType())
1131  OrigTy = Ctx.getArrayDecayedType(OrigTy);
1132 
1133  if (const StringLiteral *
1134  StrE = dyn_cast<StringLiteral>(OrigArg->IgnoreParens())) {
1135  commit.replaceWithInner(Msg->getSourceRange(), StrE->getSourceRange());
1136  commit.insert(StrE->getBeginLoc(), "@");
1137  return true;
1138  }
1139 
1140  if (const PointerType *PT = OrigTy->getAs<PointerType>()) {
1141  QualType PointeeType = PT->getPointeeType();
1142  if (Ctx.hasSameUnqualifiedType(PointeeType, Ctx.CharTy)) {
1143  SourceRange ArgRange = OrigArg->getSourceRange();
1144  commit.replaceWithInner(Msg->getSourceRange(), ArgRange);
1145 
1146  if (isa<ParenExpr>(OrigArg) || isa<IntegerLiteral>(OrigArg))
1147  commit.insertBefore(ArgRange.getBegin(), "@");
1148  else
1149  commit.insertWrap("@(", ArgRange, ")");
1150 
1151  return true;
1152  }
1153  }
1154 
1155  return false;
1156 }
1157 
1159  const NSAPI &NS, Commit &commit) {
1160  Selector Sel = Msg->getSelector();
1161 
1165  if (Msg->getNumArgs() != 1)
1166  return false;
1167  return doRewriteToUTF8StringBoxedExpressionHelper(Msg, NS, commit);
1168  }
1169 
1171  if (Msg->getNumArgs() != 2)
1172  return false;
1173 
1174  const Expr *encodingArg = Msg->getArg(1);
1175  if (NS.isNSUTF8StringEncodingConstant(encodingArg) ||
1176  NS.isNSASCIIStringEncodingConstant(encodingArg))
1177  return doRewriteToUTF8StringBoxedExpressionHelper(Msg, NS, commit);
1178  }
1179 
1180  return false;
1181 }
Selector getObjectAtIndexedSubscriptSelector() const
Returns selector for "objectAtIndexedSubscript:".
Definition: NSAPI.h:147
The receiver is the instance of the superclass object.
Definition: ExprObjC.h:1061
Defines the clang::ASTContext interface.
bool remove(CharSourceRange range)
Definition: Commit.cpp:92
The receiver is an object instance.
Definition: ExprObjC.h:1055
Smart pointer class that efficiently represents Objective-C method names.
if(T->getSizeExpr()) TRY_TO(TraverseStmt(T -> getSizeExpr()))
PointerType - C99 6.7.5.1 - Pointer Declarators.
Definition: Type.h:2533
A (possibly-)qualified type.
Definition: Type.h:642
bool isArrayType() const
Definition: Type.h:6319
bool rewriteToObjCSubscriptSyntax(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
Selector getSelector() const
Definition: ExprObjC.cpp:312
bool rewriteToObjCLiteralSyntax(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit, const ParentMap *PMap)
const internal::ArgumentAdaptingMatcherFunc< internal::HasMatcher > has
Matches AST nodes that have child AST nodes that match the provided matcher.
bool insertWrap(StringRef before, CharSourceRange range, StringRef after)
Definition: Commit.cpp:104
QualType getPointeeType() const
If this is a pointer, ObjC object pointer, or block pointer, this returns the respective pointee...
Definition: Type.cpp:497
static CharSourceRange getTokenRange(SourceRange R)
ObjCInterfaceDecl * getReceiverInterface() const
Retrieve the Objective-C interface to which this message is being directed, if known.
Definition: ExprObjC.cpp:333
static bool rewriteToSubscriptGetCommon(const ObjCMessageExpr *Msg, Commit &commit)
NSNumberLiteralMethodKind
Enumerates the NSNumber methods used to generate literals.
Definition: NSAPI.h:178
DiagnosticsEngine & getDiagnostics() const
DiagnosticBuilder Report(SourceLocation Loc, unsigned DiagID)
Issue the message to the client.
Definition: Diagnostic.h:1294
bool insertAfterToken(SourceLocation loc, StringRef text, bool beforePreviousInsertions=false)
Definition: Commit.h:74
bool insertFromRange(SourceLocation loc, CharSourceRange range, bool afterToken=false, bool beforePreviousInsertions=false)
Definition: Commit.cpp:65
static bool rewriteToNumberLiteral(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
const T * getAs() const
Member-template getAs<specific type>&#39;.
Definition: Type.h:6683
ObjCMethodDecl - Represents an instance or class method declaration.
Definition: DeclObjC.h:139
Defines the clang::Expr interface and subclasses for C++ expressions.
IdentifierInfo * getIdentifier() const
Get the identifier that names this declaration, if there is one.
Definition: Decl.h:269
Expr * IgnoreImpCasts() LLVM_READONLY
IgnoreImpCasts - Skip past any implicit casts which might surround this expression.
Definition: Expr.h:2977
bool insert(SourceLocation loc, StringRef text, bool afterToken=false, bool beforePreviousInsertions=false)
Definition: Commit.cpp:49
One of these records is kept for each identifier that is lexed.
Selector getSetObjectForKeyedSubscriptSelector() const
Returns selector for "setObject:forKeyedSubscript".
Definition: NSAPI.h:153
bool isObjCIdType(QualType T) const
Definition: ASTContext.h:2541
Represents a class type in Objective C.
Definition: Type.h:5512
ObjCMethodDecl * lookupInstanceMethod(Selector Sel) const
Lookup an instance method for a given selector.
Definition: DeclObjC.h:1839
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:154
static bool isEnumConstant(const Expr *E)
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Stmt.cpp:280
Selector getNSStringSelector(NSStringMethodKind MK) const
The Objective-C NSString selectors.
Definition: NSAPI.cpp:43
static void objectifyExpr(const Expr *E, Commit &commit)
Adds an explicit cast to &#39;id&#39; if the type is not objc object.
static bool rewriteToArraySubscriptGet(const ObjCInterfaceDecl *IFace, const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:50
ObjCArrayLiteral - used for objective-c array containers; as in: @["Hello", NSApp, [NSNumber numberWithInt:42]];.
Definition: ExprObjC.h:171
Optional< NSNumberLiteralMethodKind > getNSNumberLiteralMethodKind(Selector Sel) const
Return NSNumberLiteralMethodKind if Sel is such a selector.
Definition: NSAPI.cpp:379
bool replace(CharSourceRange range, StringRef text)
Definition: Commit.cpp:117
static bool rewriteToDictionarySubscriptGet(const ObjCInterfaceDecl *IFace, const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
Concrete class used by the front-end to report problems and issues.
Definition: Diagnostic.h:149
Expr * IgnoreParenCasts() LLVM_READONLY
IgnoreParenCasts - Ignore parentheses and casts.
Definition: Expr.cpp:2545
bool isTypeDependent() const
isTypeDependent - Determines whether this expression is type-dependent (C++ [temp.dep.expr]), which means that its type could change from one template instantiation to the next.
Definition: Expr.h:166
Represents an ObjC class declaration.
Definition: DeclObjC.h:1164
ObjCInterfaceDecl * getInterface() const
Gets the interface declaration for this object type, if the base type really is an interface...
Definition: Type.h:5747
static bool getNSArrayObjects(const Expr *E, const NSAPI &NS, SmallVectorImpl< const Expr *> &Objs)
If Msg is an NSArray creation message or literal, this gets the objects that were used to create it...
static const ObjCInterfaceDecl * maybeAdjustInterfaceForSubscriptingCheck(const ObjCInterfaceDecl *IFace, const Expr *Receiver, ASTContext &Ctx)
Check for classes that accept &#39;objectForKey:&#39; (or the other selectors that the migrator handles) but ...
static bool castOperatorNeedsParens(const Expr *FullExpr)
static StringRef getSourceText(CharSourceRange Range, const SourceManager &SM, const LangOptions &LangOpts, bool *Invalid=nullptr)
Returns a string for the source that the range encompasses.
Definition: Lexer.cpp:932
Represent the declaration of a variable (in which case it is an lvalue) a function (in which case it ...
Definition: Decl.h:636
This represents one expression.
Definition: Expr.h:105
Represents a character-granular source range.
Selector getNSArraySelector(NSArrayMethodKind MK) const
The Objective-C NSArray selectors.
Definition: NSAPI.cpp:90
static bool rewriteToDictionaryLiteral(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
ASTContext & getASTContext() const
Definition: NSAPI.h:28
static bool doRewriteToUTF8StringBoxedExpressionHelper(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
bool isSignedIntegerType() const
Return true if this is an integer type that is signed, according to C99 6.2.5p4 [char, signed char, short, int, long..], or an enum decl which has a signed representation.
Definition: Type.cpp:1836
QualType getType() const
Definition: Expr.h:127
An expression that sends a message to the given Objective-C object or class.
Definition: ExprObjC.h:904
static bool subscriptOperatorNeedsParens(const Expr *FullExpr)
SourceLocation getEnd() const
UnaryOperator - This represents the unary-expression&#39;s (except sizeof and alignof), the postinc/postdec operators from postfix-expression, and various extensions.
Definition: Expr.h:1784
ReceiverKind getReceiverKind() const
Determine the kind of receiver that this message is being sent to.
Definition: ExprObjC.h:1188
bool rewriteObjCRedundantCallWithLiteral(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
static bool checkForLiteralCreation(const ObjCMessageExpr *Msg, IdentifierInfo *&ClassId, const LangOptions &LangOpts)
bool isNull() const
Return true if this QualType doesn&#39;t point to a type yet.
Definition: Type.h:707
bool isNSUTF8StringEncodingConstant(const Expr *E) const
Returns true if the expression.
Definition: NSAPI.h:64
Expr * getArg(unsigned Arg)
getArg - Return the specified argument.
Definition: ExprObjC.h:1342
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Stmt.cpp:293
static CharSourceRange getCharRange(SourceRange R)
static bool rewriteToArrayLiteral(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit, const ParentMap *PMap)
unsigned getNumArgs() const
Return the number of actual arguments in this message, not counting the receiver. ...
Definition: ExprObjC.h:1329
Encodes a location in the source.
A helper class that allows the use of isa/cast/dyncast to detect TagType objects of enums...
Definition: Type.h:4372
bool isObjCObjectPointerType() const
Definition: Type.h:6367
ImplicitCastExpr - Allows us to explicitly represent implicit type conversions, which have no direct ...
Definition: Expr.h:2924
bool isImplicit() const
Indicates whether the message send was implicitly generated by the implementation.
Definition: ExprObjC.h:1184
CharacterKind getKind() const
Definition: Expr.h:1422
unsigned getCustomDiagID(Level L, const char(&FormatString)[N])
Return an ID for a diagnostic with the specified format string and level.
Definition: Diagnostic.h:775
const ObjCMethodDecl * getMethodDecl() const
Definition: ExprObjC.h:1303
bool hasSameUnqualifiedType(QualType T1, QualType T2) const
Determine whether the given types are equivalent after cvr-qualifiers have been removed.
Definition: ASTContext.h:2299
IdentifierInfo * getNSClassId(NSClassIdKindKind K) const
Definition: NSAPI.cpp:23
SourceLocation getExprLoc() const LLVM_READONLY
getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic exp...
Definition: Expr.cpp:216
QualType getArrayDecayedType(QualType T) const
Return the properly qualified result of decaying the specified array type to a pointer.
Expr * getInstanceReceiver()
Returns the object expression (receiver) for an instance message, or null for a message that is not a...
Definition: ExprObjC.h:1207
static bool rewriteToDictionarySubscriptSet(const ObjCInterfaceDecl *IFace, const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
CanQualType CharTy
Definition: ASTContext.h:1027
static bool rewriteToArraySubscriptSet(const ObjCInterfaceDecl *IFace, const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
Dataflow Directional Tag Classes.
bool isSentinelNullExpr(const Expr *E)
static bool rewriteToBoolLiteral(const ObjCMessageExpr *Msg, const Expr *Arg, const NSAPI &NS, Commit &commit)
QualType getSuperType() const
Retrieve the type referred to by &#39;super&#39;.
Definition: ExprObjC.h:1283
static bool rewriteToStringBoxedExpression(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
static bool canRewriteToSubscriptSyntax(const ObjCInterfaceDecl *&IFace, const ObjCMessageExpr *Msg, ASTContext &Ctx, Selector subscriptSel)
bool isBooleanType() const
Definition: Type.h:6610
bool isNSNumberLiteralSelector(NSNumberLiteralMethodKind MK, Selector Sel) const
Definition: NSAPI.h:203
Expr * IgnoreParenImpCasts() LLVM_READONLY
IgnoreParenImpCasts - Ignore parentheses and implicit casts.
Definition: Expr.cpp:2632
static bool rewriteToNumericBoxedExpression(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
QualType getClassReceiver() const
Returns the type of a class message send, or NULL if the message is not a class message.
Definition: ExprObjC.h:1226
bool hasSameType(QualType T1, QualType T2) const
Determine whether the given types T1 and T2 are equivalent.
Definition: ASTContext.h:2275
uint64_t getTypeSize(QualType T) const
Return the size of the specified (complete) type T, in bits.
Definition: ASTContext.h:2076
SourceManager & getSourceManager()
Definition: ASTContext.h:671
Selector getNSDictionarySelector(NSDictionaryMethodKind MK) const
The Objective-C NSDictionary selectors.
Definition: NSAPI.cpp:167
QualType getUnqualifiedType() const
Retrieve the unqualified variant of the given type, removing as little sugar as possible.
Definition: Type.h:6126
static void maybePutParensOnReceiver(const Expr *Receiver, Commit &commit)
const ObjCInterfaceDecl * getObjContainingInterface(const NamedDecl *ND) const
Returns the Objective-C interface that ND belongs to if it is an Objective-C method/property/ivar etc...
static bool getLiteralInfo(SourceRange literalRange, bool isFloat, bool isIntZero, ASTContext &Ctx, LiteralInfo &Info)
The receiver is a class.
Definition: ExprObjC.h:1052
SourceRange getSourceRange() const LLVM_READONLY
SourceLocation tokens are not useful in isolation - they are low level value objects created/interpre...
Definition: Stmt.cpp:268
StringLiteral - This represents a string literal expression, e.g.
Definition: Expr.h:1568
StringRef getName() const
Get the name of identifier for this declaration as a StringRef.
Definition: Decl.h:275
bool insertBefore(SourceLocation loc, StringRef text)
Definition: Commit.h:79
Stmt * getParentIgnoreParenCasts(Stmt *) const
Definition: ParentMap.cpp:134
CanQualType IntTy
Definition: ASTContext.h:1034
ObjCBoolLiteralExpr - Objective-C Boolean Literal.
Definition: ExprObjC.h:82
A reference to a declared variable, function, enum, etc.
Definition: Expr.h:971
static bool shouldNotRewriteImmediateMessageArgs(const ObjCMessageExpr *Msg, const NSAPI &NS)
Returns true if the immediate message arguments of Msg should not be rewritten because it will interf...
bool replaceWithInner(CharSourceRange range, CharSourceRange innerRange)
Definition: Commit.cpp:133
bool isPointerType() const
Definition: Type.h:6270
bool isFloatingType() const
Definition: Type.cpp:1913
A trivial tuple used to represent a source range.
A boolean literal, per ([C++ lex.bool] Boolean literals).
Definition: ExprCXX.h:550
Selector getObjectForKeyedSubscriptSelector() const
Returns selector for "objectForKeyedSubscript:".
Definition: NSAPI.h:141
The receiver is a superclass.
Definition: ExprObjC.h:1058
static bool rewriteToCharLiteral(const ObjCMessageExpr *Msg, const CharacterLiteral *Arg, const NSAPI &NS, Commit &commit)
SourceLocation getBegin() const
const LangOptions & getLangOpts() const
Definition: ASTContext.h:716
Expr * IgnoreParens() LLVM_READONLY
IgnoreParens - Ignore parentheses.
Definition: Expr.cpp:2514
bool isNSASCIIStringEncodingConstant(const Expr *E) const
Returns true if the expression.
Definition: NSAPI.h:70
Selector getSetObjectAtIndexedSubscriptSelector() const
Returns selector for "setObject:atIndexedSubscript".
Definition: NSAPI.h:159