13c3b7f90a863af43fa63043d396553ecf205351cJohn McCall//===--- SemaPseudoObject.cpp - Semantic Analysis for Pseudo-Objects ------===// 23c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// 33c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// The LLVM Compiler Infrastructure 43c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// 53c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// This file is distributed under the University of Illinois Open Source 63c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// License. See LICENSE.TXT for details. 73c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// 83c3b7f90a863af43fa63043d396553ecf205351cJohn McCall//===----------------------------------------------------------------------===// 93c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// 103c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// This file implements semantic analysis for expressions involving 113c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// pseudo-object references. Pseudo-objects are conceptual objects 123c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// whose storage is entirely abstract and all accesses to which are 133c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// translated through some sort of abstraction barrier. 143c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// 153c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// For example, Objective-C objects can have "properties", either 163c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// declared or undeclared. A property may be accessed by writing 173c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// expr.prop 183c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// where 'expr' is an r-value of Objective-C pointer type and 'prop' 193c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// is the name of the property. If this expression is used in a context 203c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// needing an r-value, it is treated as if it were a message-send 213c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// of the associated 'getter' selector, typically: 223c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// [expr prop] 233c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// If it is used as the LHS of a simple assignment, it is treated 243c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// as a message-send of the associated 'setter' selector, typically: 253c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// [expr setProp: RHS] 263c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// If it is used as the LHS of a compound assignment, or the operand 273c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// of a unary increment or decrement, both are required; for example, 283c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// 'expr.prop *= 100' would be translated to: 293c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// [expr setProp: [expr prop] * 100] 303c3b7f90a863af43fa63043d396553ecf205351cJohn McCall// 313c3b7f90a863af43fa63043d396553ecf205351cJohn McCall//===----------------------------------------------------------------------===// 323c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 333c3b7f90a863af43fa63043d396553ecf205351cJohn McCall#include "clang/Sema/SemaInternal.h" 346bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines#include "clang/AST/ExprCXX.h" 353c3b7f90a863af43fa63043d396553ecf205351cJohn McCall#include "clang/AST/ExprObjC.h" 363f6f51e28231f65de9c2dd150a2d757b2162cfa3Jordan Rose#include "clang/Basic/CharInfo.h" 373c3b7f90a863af43fa63043d396553ecf205351cJohn McCall#include "clang/Lex/Preprocessor.h" 3855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/Initialization.h" 3955fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/ScopeInfo.h" 40b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian#include "llvm/ADT/SmallString.h" 413c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 423c3b7f90a863af43fa63043d396553ecf205351cJohn McCallusing namespace clang; 433c3b7f90a863af43fa63043d396553ecf205351cJohn McCallusing namespace sema; 443c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 454b9c2d235fb9449e249d74f48ecfec601650de93John McCallnamespace { 464b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Basically just a very focused copy of TreeTransform. 474b9c2d235fb9449e249d74f48ecfec601650de93John McCall template <class T> struct Rebuilder { 484b9c2d235fb9449e249d74f48ecfec601650de93John McCall Sema &S; 494b9c2d235fb9449e249d74f48ecfec601650de93John McCall Rebuilder(Sema &S) : S(S) {} 504b9c2d235fb9449e249d74f48ecfec601650de93John McCall 514b9c2d235fb9449e249d74f48ecfec601650de93John McCall T &getDerived() { return static_cast<T&>(*this); } 524b9c2d235fb9449e249d74f48ecfec601650de93John McCall 534b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *rebuild(Expr *e) { 544b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Fast path: nothing to look through. 554b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (typename T::specific_type *specific 564b9c2d235fb9449e249d74f48ecfec601650de93John McCall = dyn_cast<typename T::specific_type>(e)) 574b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getDerived().rebuildSpecific(specific); 584b9c2d235fb9449e249d74f48ecfec601650de93John McCall 594b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Otherwise, we should look through and rebuild anything that 604b9c2d235fb9449e249d74f48ecfec601650de93John McCall // IgnoreParens would. 614b9c2d235fb9449e249d74f48ecfec601650de93John McCall 624b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (ParenExpr *parens = dyn_cast<ParenExpr>(e)) { 634b9c2d235fb9449e249d74f48ecfec601650de93John McCall e = rebuild(parens->getSubExpr()); 644b9c2d235fb9449e249d74f48ecfec601650de93John McCall return new (S.Context) ParenExpr(parens->getLParen(), 654b9c2d235fb9449e249d74f48ecfec601650de93John McCall parens->getRParen(), 664b9c2d235fb9449e249d74f48ecfec601650de93John McCall e); 674b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 684b9c2d235fb9449e249d74f48ecfec601650de93John McCall 694b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (UnaryOperator *uop = dyn_cast<UnaryOperator>(e)) { 704b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(uop->getOpcode() == UO_Extension); 714b9c2d235fb9449e249d74f48ecfec601650de93John McCall e = rebuild(uop->getSubExpr()); 724b9c2d235fb9449e249d74f48ecfec601650de93John McCall return new (S.Context) UnaryOperator(e, uop->getOpcode(), 734b9c2d235fb9449e249d74f48ecfec601650de93John McCall uop->getType(), 744b9c2d235fb9449e249d74f48ecfec601650de93John McCall uop->getValueKind(), 754b9c2d235fb9449e249d74f48ecfec601650de93John McCall uop->getObjectKind(), 764b9c2d235fb9449e249d74f48ecfec601650de93John McCall uop->getOperatorLoc()); 774b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 784b9c2d235fb9449e249d74f48ecfec601650de93John McCall 794b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (GenericSelectionExpr *gse = dyn_cast<GenericSelectionExpr>(e)) { 804b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(!gse->isResultDependent()); 814b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex = gse->getResultIndex(); 824b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned numAssocs = gse->getNumAssocs(); 834b9c2d235fb9449e249d74f48ecfec601650de93John McCall 844b9c2d235fb9449e249d74f48ecfec601650de93John McCall SmallVector<Expr*, 8> assocs(numAssocs); 854b9c2d235fb9449e249d74f48ecfec601650de93John McCall SmallVector<TypeSourceInfo*, 8> assocTypes(numAssocs); 864b9c2d235fb9449e249d74f48ecfec601650de93John McCall 874b9c2d235fb9449e249d74f48ecfec601650de93John McCall for (unsigned i = 0; i != numAssocs; ++i) { 884b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *assoc = gse->getAssocExpr(i); 894b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (i == resultIndex) assoc = rebuild(assoc); 904b9c2d235fb9449e249d74f48ecfec601650de93John McCall assocs[i] = assoc; 914b9c2d235fb9449e249d74f48ecfec601650de93John McCall assocTypes[i] = gse->getAssocTypeSourceInfo(i); 924b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 934b9c2d235fb9449e249d74f48ecfec601650de93John McCall 944b9c2d235fb9449e249d74f48ecfec601650de93John McCall return new (S.Context) GenericSelectionExpr(S.Context, 954b9c2d235fb9449e249d74f48ecfec601650de93John McCall gse->getGenericLoc(), 964b9c2d235fb9449e249d74f48ecfec601650de93John McCall gse->getControllingExpr(), 973b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer assocTypes, 983b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer assocs, 994b9c2d235fb9449e249d74f48ecfec601650de93John McCall gse->getDefaultLoc(), 1004b9c2d235fb9449e249d74f48ecfec601650de93John McCall gse->getRParenLoc(), 1014b9c2d235fb9449e249d74f48ecfec601650de93John McCall gse->containsUnexpandedParameterPack(), 1024b9c2d235fb9449e249d74f48ecfec601650de93John McCall resultIndex); 1034b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 1044b9c2d235fb9449e249d74f48ecfec601650de93John McCall 105a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman if (ChooseExpr *ce = dyn_cast<ChooseExpr>(e)) { 106a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman assert(!ce->isConditionDependent()); 107a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman 108a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman Expr *LHS = ce->getLHS(), *RHS = ce->getRHS(); 109a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman Expr *&rebuiltExpr = ce->isConditionTrue() ? LHS : RHS; 110a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman rebuiltExpr = rebuild(rebuiltExpr); 111a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman 112a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman return new (S.Context) ChooseExpr(ce->getBuiltinLoc(), 113a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman ce->getCond(), 114a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman LHS, RHS, 115a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman rebuiltExpr->getType(), 116a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman rebuiltExpr->getValueKind(), 117a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman rebuiltExpr->getObjectKind(), 118a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman ce->getRParenLoc(), 119a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman ce->isConditionTrue(), 120a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman rebuiltExpr->isTypeDependent(), 121a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman rebuiltExpr->isValueDependent()); 122a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman } 123a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman 1244b9c2d235fb9449e249d74f48ecfec601650de93John McCall llvm_unreachable("bad expression to rebuild!"); 1254b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 1264b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 1274b9c2d235fb9449e249d74f48ecfec601650de93John McCall 1284b9c2d235fb9449e249d74f48ecfec601650de93John McCall struct ObjCPropertyRefRebuilder : Rebuilder<ObjCPropertyRefRebuilder> { 1294b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *NewBase; 1304b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCPropertyRefRebuilder(Sema &S, Expr *newBase) 131acf9e82fd34c0a125bf2aa8be1ab868082a7f06aBenjamin Kramer : Rebuilder<ObjCPropertyRefRebuilder>(S), NewBase(newBase) {} 1324b9c2d235fb9449e249d74f48ecfec601650de93John McCall 1334b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef ObjCPropertyRefExpr specific_type; 1344b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *rebuildSpecific(ObjCPropertyRefExpr *refExpr) { 1354b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Fortunately, the constraint that we're rebuilding something 1364b9c2d235fb9449e249d74f48ecfec601650de93John McCall // with a base limits the number of cases here. 137a70779f6b9a8135c3459bdeb1f0197b82ea0cb2aEli Friedman assert(refExpr->isObjectReceiver()); 1384b9c2d235fb9449e249d74f48ecfec601650de93John McCall 1394b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (refExpr->isExplicitProperty()) { 1404b9c2d235fb9449e249d74f48ecfec601650de93John McCall return new (S.Context) 1414b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCPropertyRefExpr(refExpr->getExplicitProperty(), 1424b9c2d235fb9449e249d74f48ecfec601650de93John McCall refExpr->getType(), refExpr->getValueKind(), 1434b9c2d235fb9449e249d74f48ecfec601650de93John McCall refExpr->getObjectKind(), refExpr->getLocation(), 1444b9c2d235fb9449e249d74f48ecfec601650de93John McCall NewBase); 1454b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 1464b9c2d235fb9449e249d74f48ecfec601650de93John McCall return new (S.Context) 1474b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCPropertyRefExpr(refExpr->getImplicitPropertyGetter(), 1484b9c2d235fb9449e249d74f48ecfec601650de93John McCall refExpr->getImplicitPropertySetter(), 1494b9c2d235fb9449e249d74f48ecfec601650de93John McCall refExpr->getType(), refExpr->getValueKind(), 1504b9c2d235fb9449e249d74f48ecfec601650de93John McCall refExpr->getObjectKind(),refExpr->getLocation(), 1514b9c2d235fb9449e249d74f48ecfec601650de93John McCall NewBase); 1524b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 1534b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 1544b9c2d235fb9449e249d74f48ecfec601650de93John McCall 155ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek struct ObjCSubscriptRefRebuilder : Rebuilder<ObjCSubscriptRefRebuilder> { 156ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *NewBase; 157ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *NewKeyExpr; 158ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCSubscriptRefRebuilder(Sema &S, Expr *newBase, Expr *newKeyExpr) 159ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : Rebuilder<ObjCSubscriptRefRebuilder>(S), 160ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NewBase(newBase), NewKeyExpr(newKeyExpr) {} 161ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 162ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek typedef ObjCSubscriptRefExpr specific_type; 163ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *rebuildSpecific(ObjCSubscriptRefExpr *refExpr) { 164ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek assert(refExpr->getBaseExpr()); 165ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek assert(refExpr->getKeyExpr()); 166ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 167ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return new (S.Context) 168ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCSubscriptRefExpr(NewBase, 169ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NewKeyExpr, 170ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek refExpr->getType(), refExpr->getValueKind(), 171ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek refExpr->getObjectKind(),refExpr->getAtIndexMethodDecl(), 172ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek refExpr->setAtIndexMethodDecl(), 173ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek refExpr->getRBracket()); 174ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 175ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek }; 17676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 17776da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall struct MSPropertyRefRebuilder : Rebuilder<MSPropertyRefRebuilder> { 17876da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall Expr *NewBase; 17976da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall MSPropertyRefRebuilder(Sema &S, Expr *newBase) 18076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall : Rebuilder<MSPropertyRefRebuilder>(S), NewBase(newBase) {} 18176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 18276da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall typedef MSPropertyRefExpr specific_type; 18376da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall Expr *rebuildSpecific(MSPropertyRefExpr *refExpr) { 18476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall assert(refExpr->getBaseExpr()); 18576da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 18676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall return new (S.Context) 18776da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall MSPropertyRefExpr(NewBase, refExpr->getPropertyDecl(), 18876da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall refExpr->isArrow(), refExpr->getType(), 18976da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall refExpr->getValueKind(), refExpr->getQualifierLoc(), 19076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall refExpr->getMemberLoc()); 19176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall } 19276da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall }; 193ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1944b9c2d235fb9449e249d74f48ecfec601650de93John McCall class PseudoOpBuilder { 1954b9c2d235fb9449e249d74f48ecfec601650de93John McCall public: 1964b9c2d235fb9449e249d74f48ecfec601650de93John McCall Sema &S; 1974b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned ResultIndex; 1984b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceLocation GenericLoc; 1994b9c2d235fb9449e249d74f48ecfec601650de93John McCall SmallVector<Expr *, 4> Semantics; 2004b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2014b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoOpBuilder(Sema &S, SourceLocation genericLoc) 2024b9c2d235fb9449e249d74f48ecfec601650de93John McCall : S(S), ResultIndex(PseudoObjectExpr::NoResult), 2034b9c2d235fb9449e249d74f48ecfec601650de93John McCall GenericLoc(genericLoc) {} 2044b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2051aa1721f14f2162811f5393dbd84e01eadc2c963Matt Beaumont-Gay virtual ~PseudoOpBuilder() {} 2061aa1721f14f2162811f5393dbd84e01eadc2c963Matt Beaumont-Gay 2074b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Add a normal semantic expression. 2084b9c2d235fb9449e249d74f48ecfec601650de93John McCall void addSemanticExpr(Expr *semantic) { 2094b9c2d235fb9449e249d74f48ecfec601650de93John McCall Semantics.push_back(semantic); 2104b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 2114b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2124b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Add the 'result' semantic expression. 2134b9c2d235fb9449e249d74f48ecfec601650de93John McCall void addResultSemanticExpr(Expr *resultExpr) { 2144b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(ResultIndex == PseudoObjectExpr::NoResult); 2154b9c2d235fb9449e249d74f48ecfec601650de93John McCall ResultIndex = Semantics.size(); 2164b9c2d235fb9449e249d74f48ecfec601650de93John McCall Semantics.push_back(resultExpr); 2174b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 2184b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2194b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult buildRValueOperation(Expr *op); 2204b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult buildAssignmentOperation(Scope *Sc, 2214b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceLocation opLoc, 2224b9c2d235fb9449e249d74f48ecfec601650de93John McCall BinaryOperatorKind opcode, 2234b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *LHS, Expr *RHS); 2244b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult buildIncDecOperation(Scope *Sc, SourceLocation opLoc, 2254b9c2d235fb9449e249d74f48ecfec601650de93John McCall UnaryOperatorKind opcode, 2264b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *op); 2274b9c2d235fb9449e249d74f48ecfec601650de93John McCall 22858b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose virtual ExprResult complete(Expr *syntacticForm); 2294b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2304b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueExpr *capture(Expr *op); 2314b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueExpr *captureValueAsResult(Expr *op); 2324b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2334b9c2d235fb9449e249d74f48ecfec601650de93John McCall void setResultToLastSemantic() { 2344b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(ResultIndex == PseudoObjectExpr::NoResult); 2354b9c2d235fb9449e249d74f48ecfec601650de93John McCall ResultIndex = Semantics.size() - 1; 2364b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 2374b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2384b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return true if assignments have a non-void result. 239651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool CanCaptureValue(Expr *exp) { 240651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (exp->isGLValue()) 241651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return true; 242651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType ty = exp->getType(); 24325f071eedf5d20faf9e1614d5ff5dc39b6de5041Eli Friedman assert(!ty->isIncompleteType()); 24425f071eedf5d20faf9e1614d5ff5dc39b6de5041Eli Friedman assert(!ty->isDependentType()); 24525f071eedf5d20faf9e1614d5ff5dc39b6de5041Eli Friedman 24625f071eedf5d20faf9e1614d5ff5dc39b6de5041Eli Friedman if (const CXXRecordDecl *ClassDecl = ty->getAsCXXRecordDecl()) 24725f071eedf5d20faf9e1614d5ff5dc39b6de5041Eli Friedman return ClassDecl->isTriviallyCopyable(); 24825f071eedf5d20faf9e1614d5ff5dc39b6de5041Eli Friedman return true; 24925f071eedf5d20faf9e1614d5ff5dc39b6de5041Eli Friedman } 2504b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2514b9c2d235fb9449e249d74f48ecfec601650de93John McCall virtual Expr *rebuildAndCaptureObject(Expr *) = 0; 2524b9c2d235fb9449e249d74f48ecfec601650de93John McCall virtual ExprResult buildGet() = 0; 2534b9c2d235fb9449e249d74f48ecfec601650de93John McCall virtual ExprResult buildSet(Expr *, SourceLocation, 2544b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool captureSetValueAsResult) = 0; 2554b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 2564b9c2d235fb9449e249d74f48ecfec601650de93John McCall 257e23fb90712233bdfa04387e48b54a7168e23cb3eDmitri Gribenko /// A PseudoOpBuilder for Objective-C \@properties. 2584b9c2d235fb9449e249d74f48ecfec601650de93John McCall class ObjCPropertyOpBuilder : public PseudoOpBuilder { 2594b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCPropertyRefExpr *RefExpr; 260b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis ObjCPropertyRefExpr *SyntacticRefExpr; 2614b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueExpr *InstanceReceiver; 2624b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCMethodDecl *Getter; 2634b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2644b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCMethodDecl *Setter; 2654b9c2d235fb9449e249d74f48ecfec601650de93John McCall Selector SetterSelector; 266a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian Selector GetterSelector; 2674b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2684b9c2d235fb9449e249d74f48ecfec601650de93John McCall public: 2694b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCPropertyOpBuilder(Sema &S, ObjCPropertyRefExpr *refExpr) : 2704b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoOpBuilder(S, refExpr->getLocation()), RefExpr(refExpr), 2716bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SyntacticRefExpr(nullptr), InstanceReceiver(nullptr), Getter(nullptr), 2726bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Setter(nullptr) { 2734b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 2744b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2754b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult buildRValueOperation(Expr *op); 2764b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult buildAssignmentOperation(Scope *Sc, 2774b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceLocation opLoc, 2784b9c2d235fb9449e249d74f48ecfec601650de93John McCall BinaryOperatorKind opcode, 2794b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *LHS, Expr *RHS); 2804b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult buildIncDecOperation(Scope *Sc, SourceLocation opLoc, 2814b9c2d235fb9449e249d74f48ecfec601650de93John McCall UnaryOperatorKind opcode, 2824b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *op); 2834b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2844b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool tryBuildGetOfReference(Expr *op, ExprResult &result); 285b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian bool findSetter(bool warn=true); 2864b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool findGetter(); 287176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void DiagnoseUnsupportedPropertyUse(); 2884b9c2d235fb9449e249d74f48ecfec601650de93John McCall 289651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Expr *rebuildAndCaptureObject(Expr *syntacticBase) override; 290651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprResult buildGet() override; 291651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprResult buildSet(Expr *op, SourceLocation, bool) override; 292651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprResult complete(Expr *SyntacticForm) override; 29358b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose 29458b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose bool isWeakProperty() const; 2954b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 296ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 297ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /// A PseudoOpBuilder for Objective-C array/dictionary indexing. 298ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek class ObjCSubscriptOpBuilder : public PseudoOpBuilder { 299ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCSubscriptRefExpr *RefExpr; 300ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek OpaqueValueExpr *InstanceBase; 301ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek OpaqueValueExpr *InstanceKey; 302ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *AtIndexGetter; 303ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector AtIndexGetterSelector; 304ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 305ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *AtIndexSetter; 306ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector AtIndexSetterSelector; 307ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 308ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek public: 309ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCSubscriptOpBuilder(Sema &S, ObjCSubscriptRefExpr *refExpr) : 310ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek PseudoOpBuilder(S, refExpr->getSourceRange().getBegin()), 311ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek RefExpr(refExpr), 3126bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines InstanceBase(nullptr), InstanceKey(nullptr), 3136bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines AtIndexGetter(nullptr), AtIndexSetter(nullptr) {} 3146bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 315ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult buildRValueOperation(Expr *op); 316ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult buildAssignmentOperation(Scope *Sc, 317ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation opLoc, 318ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BinaryOperatorKind opcode, 319ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *LHS, Expr *RHS); 320651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Expr *rebuildAndCaptureObject(Expr *syntacticBase) override; 321651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 322ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool findAtIndexGetter(); 323ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool findAtIndexSetter(); 324651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 325651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprResult buildGet() override; 326651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprResult buildSet(Expr *op, SourceLocation, bool) override; 327ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek }; 328ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 32976da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall class MSPropertyOpBuilder : public PseudoOpBuilder { 33076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall MSPropertyRefExpr *RefExpr; 33176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 33276da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall public: 33376da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall MSPropertyOpBuilder(Sema &S, MSPropertyRefExpr *refExpr) : 33476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall PseudoOpBuilder(S, refExpr->getSourceRange().getBegin()), 33576da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall RefExpr(refExpr) {} 33676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 337651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Expr *rebuildAndCaptureObject(Expr *) override; 338651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprResult buildGet() override; 339651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprResult buildSet(Expr *op, SourceLocation, bool) override; 34076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall }; 3414b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 3424b9c2d235fb9449e249d74f48ecfec601650de93John McCall 3434b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Capture the given expression in an OpaqueValueExpr. 3444b9c2d235fb9449e249d74f48ecfec601650de93John McCallOpaqueValueExpr *PseudoOpBuilder::capture(Expr *e) { 3454b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Make a new OVE whose source is the given expression. 3464b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueExpr *captured = 3474b9c2d235fb9449e249d74f48ecfec601650de93John McCall new (S.Context) OpaqueValueExpr(GenericLoc, e->getType(), 34897df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor e->getValueKind(), e->getObjectKind(), 34997df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor e); 3504b9c2d235fb9449e249d74f48ecfec601650de93John McCall 3514b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Make sure we bind that in the semantics. 3524b9c2d235fb9449e249d74f48ecfec601650de93John McCall addSemanticExpr(captured); 3534b9c2d235fb9449e249d74f48ecfec601650de93John McCall return captured; 3544b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 3554b9c2d235fb9449e249d74f48ecfec601650de93John McCall 3564b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Capture the given expression as the result of this pseudo-object 3574b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// operation. This routine is safe against expressions which may 3584b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// already be captured. 3594b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 36070517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko/// \returns the captured expression, which will be the 3614b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// same as the input if the input was already captured 3624b9c2d235fb9449e249d74f48ecfec601650de93John McCallOpaqueValueExpr *PseudoOpBuilder::captureValueAsResult(Expr *e) { 3634b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(ResultIndex == PseudoObjectExpr::NoResult); 3644b9c2d235fb9449e249d74f48ecfec601650de93John McCall 3654b9c2d235fb9449e249d74f48ecfec601650de93John McCall // If the expression hasn't already been captured, just capture it 3664b9c2d235fb9449e249d74f48ecfec601650de93John McCall // and set the new semantic 3674b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (!isa<OpaqueValueExpr>(e)) { 3684b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueExpr *cap = capture(e); 3694b9c2d235fb9449e249d74f48ecfec601650de93John McCall setResultToLastSemantic(); 3704b9c2d235fb9449e249d74f48ecfec601650de93John McCall return cap; 3714b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 3724b9c2d235fb9449e249d74f48ecfec601650de93John McCall 3734b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Otherwise, it must already be one of our semantic expressions; 3744b9c2d235fb9449e249d74f48ecfec601650de93John McCall // set ResultIndex to its index. 3754b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned index = 0; 3764b9c2d235fb9449e249d74f48ecfec601650de93John McCall for (;; ++index) { 3774b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(index < Semantics.size() && 3784b9c2d235fb9449e249d74f48ecfec601650de93John McCall "captured expression not found in semantics!"); 3794b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (e == Semantics[index]) break; 3804b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 3814b9c2d235fb9449e249d74f48ecfec601650de93John McCall ResultIndex = index; 3824b9c2d235fb9449e249d74f48ecfec601650de93John McCall return cast<OpaqueValueExpr>(e); 3834b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 3844b9c2d235fb9449e249d74f48ecfec601650de93John McCall 3854b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// The routine which creates the final PseudoObjectExpr. 3864b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult PseudoOpBuilder::complete(Expr *syntactic) { 3874b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExpr::Create(S.Context, syntactic, 3884b9c2d235fb9449e249d74f48ecfec601650de93John McCall Semantics, ResultIndex); 3894b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 3904b9c2d235fb9449e249d74f48ecfec601650de93John McCall 3914b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// The main skeleton for building an r-value operation. 3924b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult PseudoOpBuilder::buildRValueOperation(Expr *op) { 3934b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *syntacticBase = rebuildAndCaptureObject(op); 3944b9c2d235fb9449e249d74f48ecfec601650de93John McCall 3954b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult getExpr = buildGet(); 3964b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (getExpr.isInvalid()) return ExprError(); 397c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines addResultSemanticExpr(getExpr.get()); 3984b9c2d235fb9449e249d74f48ecfec601650de93John McCall 3994b9c2d235fb9449e249d74f48ecfec601650de93John McCall return complete(syntacticBase); 4004b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 4014b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4024b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// The basic skeleton for building a simple or compound 4034b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// assignment operation. 4044b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult 4054b9c2d235fb9449e249d74f48ecfec601650de93John McCallPseudoOpBuilder::buildAssignmentOperation(Scope *Sc, SourceLocation opcLoc, 4064b9c2d235fb9449e249d74f48ecfec601650de93John McCall BinaryOperatorKind opcode, 4074b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *LHS, Expr *RHS) { 4084b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(BinaryOperator::isAssignmentOp(opcode)); 409176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 410176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines // Recover from user error 411176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (isa<UnresolvedLookupExpr>(RHS)) 412176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return ExprError(); 4134b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4144b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *syntacticLHS = rebuildAndCaptureObject(LHS); 4154b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueExpr *capturedRHS = capture(RHS); 4164b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4174b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *syntactic; 4184b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4194b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult result; 4204b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (opcode == BO_Assign) { 4214b9c2d235fb9449e249d74f48ecfec601650de93John McCall result = capturedRHS; 4224b9c2d235fb9449e249d74f48ecfec601650de93John McCall syntactic = new (S.Context) BinaryOperator(syntacticLHS, capturedRHS, 4234b9c2d235fb9449e249d74f48ecfec601650de93John McCall opcode, capturedRHS->getType(), 4244b9c2d235fb9449e249d74f48ecfec601650de93John McCall capturedRHS->getValueKind(), 425be9af1288881110e406b87914162eaa59f1e5918Lang Hames OK_Ordinary, opcLoc, false); 4264b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 4274b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult opLHS = buildGet(); 4284b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (opLHS.isInvalid()) return ExprError(); 4294b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4304b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Build an ordinary, non-compound operation. 4314b9c2d235fb9449e249d74f48ecfec601650de93John McCall BinaryOperatorKind nonCompound = 4324b9c2d235fb9449e249d74f48ecfec601650de93John McCall BinaryOperator::getOpForCompoundAssignment(opcode); 4334b9c2d235fb9449e249d74f48ecfec601650de93John McCall result = S.BuildBinOp(Sc, opcLoc, nonCompound, 434c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines opLHS.get(), capturedRHS); 4354b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (result.isInvalid()) return ExprError(); 4364b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4374b9c2d235fb9449e249d74f48ecfec601650de93John McCall syntactic = 4384b9c2d235fb9449e249d74f48ecfec601650de93John McCall new (S.Context) CompoundAssignOperator(syntacticLHS, capturedRHS, opcode, 4394b9c2d235fb9449e249d74f48ecfec601650de93John McCall result.get()->getType(), 4404b9c2d235fb9449e249d74f48ecfec601650de93John McCall result.get()->getValueKind(), 4414b9c2d235fb9449e249d74f48ecfec601650de93John McCall OK_Ordinary, 4424b9c2d235fb9449e249d74f48ecfec601650de93John McCall opLHS.get()->getType(), 4434b9c2d235fb9449e249d74f48ecfec601650de93John McCall result.get()->getType(), 444be9af1288881110e406b87914162eaa59f1e5918Lang Hames opcLoc, false); 4454b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 4464b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4474b9c2d235fb9449e249d74f48ecfec601650de93John McCall // The result of the assignment, if not void, is the value set into 4484b9c2d235fb9449e249d74f48ecfec601650de93John McCall // the l-value. 449c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines result = buildSet(result.get(), opcLoc, /*captureSetValueAsResult*/ true); 4504b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (result.isInvalid()) return ExprError(); 451c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines addSemanticExpr(result.get()); 4524b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4534b9c2d235fb9449e249d74f48ecfec601650de93John McCall return complete(syntactic); 4544b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 4554b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4564b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// The basic skeleton for building an increment or decrement 4574b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// operation. 4584b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult 4594b9c2d235fb9449e249d74f48ecfec601650de93John McCallPseudoOpBuilder::buildIncDecOperation(Scope *Sc, SourceLocation opcLoc, 4604b9c2d235fb9449e249d74f48ecfec601650de93John McCall UnaryOperatorKind opcode, 4614b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *op) { 4624b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(UnaryOperator::isIncrementDecrementOp(opcode)); 4634b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4644b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *syntacticOp = rebuildAndCaptureObject(op); 4654b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4664b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Load the value. 4674b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult result = buildGet(); 4684b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (result.isInvalid()) return ExprError(); 4694b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4704b9c2d235fb9449e249d74f48ecfec601650de93John McCall QualType resultType = result.get()->getType(); 4714b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4724b9c2d235fb9449e249d74f48ecfec601650de93John McCall // That's the postfix result. 473d314abeffba04dffc101e4e71cc3a32ddeed4ae6John McCall if (UnaryOperator::isPostfix(opcode) && 474651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (result.get()->isTypeDependent() || CanCaptureValue(result.get()))) { 475c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines result = capture(result.get()); 4764b9c2d235fb9449e249d74f48ecfec601650de93John McCall setResultToLastSemantic(); 4774b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 4784b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4794b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Add or subtract a literal 1. 4804b9c2d235fb9449e249d74f48ecfec601650de93John McCall llvm::APInt oneV(S.Context.getTypeSize(S.Context.IntTy), 1); 4814b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *one = IntegerLiteral::Create(S.Context, oneV, S.Context.IntTy, 4824b9c2d235fb9449e249d74f48ecfec601650de93John McCall GenericLoc); 4834b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4844b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (UnaryOperator::isIncrementOp(opcode)) { 485c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines result = S.BuildBinOp(Sc, opcLoc, BO_Add, result.get(), one); 4864b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 487c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines result = S.BuildBinOp(Sc, opcLoc, BO_Sub, result.get(), one); 4884b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 4894b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (result.isInvalid()) return ExprError(); 4904b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4914b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Store that back into the result. The value stored is the result 4924b9c2d235fb9449e249d74f48ecfec601650de93John McCall // of a prefix operation. 493c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines result = buildSet(result.get(), opcLoc, UnaryOperator::isPrefix(opcode)); 4944b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (result.isInvalid()) return ExprError(); 495c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines addSemanticExpr(result.get()); 4964b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4974b9c2d235fb9449e249d74f48ecfec601650de93John McCall UnaryOperator *syntactic = 4984b9c2d235fb9449e249d74f48ecfec601650de93John McCall new (S.Context) UnaryOperator(syntacticOp, opcode, resultType, 4994b9c2d235fb9449e249d74f48ecfec601650de93John McCall VK_LValue, OK_Ordinary, opcLoc); 5004b9c2d235fb9449e249d74f48ecfec601650de93John McCall return complete(syntactic); 5014b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 5024b9c2d235fb9449e249d74f48ecfec601650de93John McCall 5034b9c2d235fb9449e249d74f48ecfec601650de93John McCall 5044b9c2d235fb9449e249d74f48ecfec601650de93John McCall//===----------------------------------------------------------------------===// 5054b9c2d235fb9449e249d74f48ecfec601650de93John McCall// Objective-C @property and implicit property references 5064b9c2d235fb9449e249d74f48ecfec601650de93John McCall//===----------------------------------------------------------------------===// 5074b9c2d235fb9449e249d74f48ecfec601650de93John McCall 5084b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Look up a method in the receiver type of an Objective-C property 5094b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// reference. 5103c3b7f90a863af43fa63043d396553ecf205351cJohn McCallstatic ObjCMethodDecl *LookupMethodInReceiverType(Sema &S, Selector sel, 5113c3b7f90a863af43fa63043d396553ecf205351cJohn McCall const ObjCPropertyRefExpr *PRE) { 5123c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (PRE->isObjectReceiver()) { 513aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer const ObjCObjectPointerType *PT = 514aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer PRE->getBase()->getType()->castAs<ObjCObjectPointerType>(); 5154b9c2d235fb9449e249d74f48ecfec601650de93John McCall 5164b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Special case for 'self' in class method implementations. 5174b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PT->isObjCClassType() && 5184b9c2d235fb9449e249d74f48ecfec601650de93John McCall S.isSelfExpr(const_cast<Expr*>(PRE->getBase()))) { 5194b9c2d235fb9449e249d74f48ecfec601650de93John McCall // This cast is safe because isSelfExpr is only true within 5204b9c2d235fb9449e249d74f48ecfec601650de93John McCall // methods. 5214b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCMethodDecl *method = 5224b9c2d235fb9449e249d74f48ecfec601650de93John McCall cast<ObjCMethodDecl>(S.CurContext->getNonClosureAncestor()); 5234b9c2d235fb9449e249d74f48ecfec601650de93John McCall return S.LookupMethodInObjectType(sel, 5244b9c2d235fb9449e249d74f48ecfec601650de93John McCall S.Context.getObjCInterfaceType(method->getClassInterface()), 5254b9c2d235fb9449e249d74f48ecfec601650de93John McCall /*instance*/ false); 5264b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 5274b9c2d235fb9449e249d74f48ecfec601650de93John McCall 528aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer return S.LookupMethodInObjectType(sel, PT->getPointeeType(), true); 5293c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 5303c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 531aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer if (PRE->isSuperReceiver()) { 532aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer if (const ObjCObjectPointerType *PT = 533aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer PRE->getSuperReceiverType()->getAs<ObjCObjectPointerType>()) 534aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer return S.LookupMethodInObjectType(sel, PT->getPointeeType(), true); 535aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer 536aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer return S.LookupMethodInObjectType(sel, PRE->getSuperReceiverType(), false); 537aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer } 538aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer 539aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer assert(PRE->isClassReceiver() && "Invalid expression"); 540aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer QualType IT = S.Context.getObjCInterfaceType(PRE->getClassReceiver()); 541aa9807a85959ffbdc5d9f649d7b24b9b2056d2cdBenjamin Kramer return S.LookupMethodInObjectType(sel, IT, false); 5423c3b7f90a863af43fa63043d396553ecf205351cJohn McCall} 5433c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 54458b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rosebool ObjCPropertyOpBuilder::isWeakProperty() const { 54558b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose QualType T; 54658b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose if (RefExpr->isExplicitProperty()) { 54758b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose const ObjCPropertyDecl *Prop = RefExpr->getExplicitProperty(); 54858b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose if (Prop->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_weak) 549c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines return !Prop->hasAttr<IBOutletAttr>(); 55058b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose 55158b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose T = Prop->getType(); 55258b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose } else if (Getter) { 553651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines T = Getter->getReturnType(); 55458b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose } else { 55558b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose return false; 55658b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose } 55758b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose 55858b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose return T.getObjCLifetime() == Qualifiers::OCL_Weak; 55958b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose} 56058b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose 5614b9c2d235fb9449e249d74f48ecfec601650de93John McCallbool ObjCPropertyOpBuilder::findGetter() { 5624b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (Getter) return true; 5634b9c2d235fb9449e249d74f48ecfec601650de93John McCall 564dc4df51d32dea56fbec79037570832dffbcc14e6John McCall // For implicit properties, just trust the lookup we already did. 565dc4df51d32dea56fbec79037570832dffbcc14e6John McCall if (RefExpr->isImplicitProperty()) { 566a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian if ((Getter = RefExpr->getImplicitPropertyGetter())) { 567a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian GetterSelector = Getter->getSelector(); 568a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian return true; 569a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian } 570a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian else { 571a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian // Must build the getter selector the hard way. 572a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian ObjCMethodDecl *setter = RefExpr->getImplicitPropertySetter(); 573a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian assert(setter && "both setter and getter are null - cannot happen"); 574a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian IdentifierInfo *setterName = 575a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian setter->getSelector().getIdentifierInfoForSlot(0); 576c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines IdentifierInfo *getterName = 577c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines &S.Context.Idents.get(setterName->getName().substr(3)); 578a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian GetterSelector = 579a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian S.PP.getSelectorTable().getNullarySelector(getterName); 580a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian return false; 581a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian } 582dc4df51d32dea56fbec79037570832dffbcc14e6John McCall } 583dc4df51d32dea56fbec79037570832dffbcc14e6John McCall 584dc4df51d32dea56fbec79037570832dffbcc14e6John McCall ObjCPropertyDecl *prop = RefExpr->getExplicitProperty(); 585dc4df51d32dea56fbec79037570832dffbcc14e6John McCall Getter = LookupMethodInReceiverType(S, prop->getGetterName(), RefExpr); 5866bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return (Getter != nullptr); 5874b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 5884b9c2d235fb9449e249d74f48ecfec601650de93John McCall 5894b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Try to find the most accurate setter declaration for the property 5904b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// reference. 5914b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 5924b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// \return true if a setter was found, in which case Setter 593b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanianbool ObjCPropertyOpBuilder::findSetter(bool warn) { 5944b9c2d235fb9449e249d74f48ecfec601650de93John McCall // For implicit properties, just trust the lookup we already did. 5954b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (RefExpr->isImplicitProperty()) { 5964b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (ObjCMethodDecl *setter = RefExpr->getImplicitPropertySetter()) { 5974b9c2d235fb9449e249d74f48ecfec601650de93John McCall Setter = setter; 5984b9c2d235fb9449e249d74f48ecfec601650de93John McCall SetterSelector = setter->getSelector(); 5994b9c2d235fb9449e249d74f48ecfec601650de93John McCall return true; 6003c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } else { 6014b9c2d235fb9449e249d74f48ecfec601650de93John McCall IdentifierInfo *getterName = 6024b9c2d235fb9449e249d74f48ecfec601650de93John McCall RefExpr->getImplicitPropertyGetter()->getSelector() 6034b9c2d235fb9449e249d74f48ecfec601650de93John McCall .getIdentifierInfoForSlot(0); 6044b9c2d235fb9449e249d74f48ecfec601650de93John McCall SetterSelector = 60580e8ea92d6dcaa05165dcb4730485db82dcd4629Adrian Prantl SelectorTable::constructSetterSelector(S.PP.getIdentifierTable(), 60680e8ea92d6dcaa05165dcb4730485db82dcd4629Adrian Prantl S.PP.getSelectorTable(), 60780e8ea92d6dcaa05165dcb4730485db82dcd4629Adrian Prantl getterName); 6084b9c2d235fb9449e249d74f48ecfec601650de93John McCall return false; 6093c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 6103c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 6113c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 6124b9c2d235fb9449e249d74f48ecfec601650de93John McCall // For explicit properties, this is more involved. 6134b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCPropertyDecl *prop = RefExpr->getExplicitProperty(); 6144b9c2d235fb9449e249d74f48ecfec601650de93John McCall SetterSelector = prop->getSetterName(); 6154b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6164b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Do a normal method lookup first. 6174b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (ObjCMethodDecl *setter = 6184b9c2d235fb9449e249d74f48ecfec601650de93John McCall LookupMethodInReceiverType(S, SetterSelector, RefExpr)) { 6191e4691b9d8e1bdcc8ef62b323969d702c51b3c08Jordan Rose if (setter->isPropertyAccessor() && warn) 620b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian if (const ObjCInterfaceDecl *IFace = 621b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian dyn_cast<ObjCInterfaceDecl>(setter->getDeclContext())) { 622176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines StringRef thisPropertyName = prop->getName(); 6233f6f51e28231f65de9c2dd150a2d757b2162cfa3Jordan Rose // Try flipping the case of the first character. 624b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian char front = thisPropertyName.front(); 6253f6f51e28231f65de9c2dd150a2d757b2162cfa3Jordan Rose front = isLowercase(front) ? toUppercase(front) : toLowercase(front); 626b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian SmallString<100> PropertyName = thisPropertyName; 627b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian PropertyName[0] = front; 628b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian IdentifierInfo *AltMember = &S.PP.getIdentifierTable().get(PropertyName); 629b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian if (ObjCPropertyDecl *prop1 = IFace->FindPropertyDeclaration(AltMember)) 630b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian if (prop != prop1 && (prop1->getSetterMethodDecl() == setter)) { 631cba0ebce65667f76e291346d377f402579743ceaFariborz Jahanian S.Diag(RefExpr->getExprLoc(), diag::error_property_setter_ambiguous_use) 632651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << prop << prop1 << setter->getSelector(); 633b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian S.Diag(prop->getLocation(), diag::note_property_declare); 634b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian S.Diag(prop1->getLocation(), diag::note_property_declare); 635b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian } 636b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian } 6374b9c2d235fb9449e249d74f48ecfec601650de93John McCall Setter = setter; 6384b9c2d235fb9449e249d74f48ecfec601650de93John McCall return true; 6394b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 6404b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6414b9c2d235fb9449e249d74f48ecfec601650de93John McCall // That can fail in the somewhat crazy situation that we're 6424b9c2d235fb9449e249d74f48ecfec601650de93John McCall // type-checking a message send within the @interface declaration 6434b9c2d235fb9449e249d74f48ecfec601650de93John McCall // that declared the @property. But it's not clear that that's 6444b9c2d235fb9449e249d74f48ecfec601650de93John McCall // valuable to support. 6454b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6464b9c2d235fb9449e249d74f48ecfec601650de93John McCall return false; 6474b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 6484b9c2d235fb9449e249d74f48ecfec601650de93John McCall 649176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hinesvoid ObjCPropertyOpBuilder::DiagnoseUnsupportedPropertyUse() { 650c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (S.getCurLexicalContext()->isObjCContainer() && 651c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.getCurLexicalContext()->getDeclKind() != Decl::ObjCCategoryImpl && 652c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.getCurLexicalContext()->getDeclKind() != Decl::ObjCImplementation) { 653c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (ObjCPropertyDecl *prop = RefExpr->getExplicitProperty()) { 654c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.Diag(RefExpr->getLocation(), 655c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines diag::err_property_function_in_objc_container); 656c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.Diag(prop->getLocation(), diag::note_property_declare); 657c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines } 658c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines } 659c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines} 660c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines 6614b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Capture the base object of an Objective-C property expression. 6624b9c2d235fb9449e249d74f48ecfec601650de93John McCallExpr *ObjCPropertyOpBuilder::rebuildAndCaptureObject(Expr *syntacticBase) { 6636bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines assert(InstanceReceiver == nullptr); 6644b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6654b9c2d235fb9449e249d74f48ecfec601650de93John McCall // If we have a base, capture it in an OVE and rebuild the syntactic 6664b9c2d235fb9449e249d74f48ecfec601650de93John McCall // form to use the OVE as its base. 6674b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (RefExpr->isObjectReceiver()) { 6684b9c2d235fb9449e249d74f48ecfec601650de93John McCall InstanceReceiver = capture(RefExpr->getBase()); 6694b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6704b9c2d235fb9449e249d74f48ecfec601650de93John McCall syntacticBase = 6714b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCPropertyRefRebuilder(S, InstanceReceiver).rebuild(syntacticBase); 6724b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 6734b9c2d235fb9449e249d74f48ecfec601650de93John McCall 674b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis if (ObjCPropertyRefExpr * 675b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis refE = dyn_cast<ObjCPropertyRefExpr>(syntacticBase->IgnoreParens())) 676b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis SyntacticRefExpr = refE; 677b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis 6784b9c2d235fb9449e249d74f48ecfec601650de93John McCall return syntacticBase; 6794b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 6804b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6814b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Load from an Objective-C property reference. 6824b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult ObjCPropertyOpBuilder::buildGet() { 6834b9c2d235fb9449e249d74f48ecfec601650de93John McCall findGetter(); 684176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (!Getter) { 685176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines DiagnoseUnsupportedPropertyUse(); 686176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return ExprError(); 687176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 688b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis 689b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis if (SyntacticRefExpr) 690b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis SyntacticRefExpr->setIsMessagingGetter(); 691b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis 6924b9c2d235fb9449e249d74f48ecfec601650de93John McCall QualType receiverType; 6934b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (RefExpr->isClassReceiver()) { 6944b9c2d235fb9449e249d74f48ecfec601650de93John McCall receiverType = S.Context.getObjCInterfaceType(RefExpr->getClassReceiver()); 6954b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else if (RefExpr->isSuperReceiver()) { 6964b9c2d235fb9449e249d74f48ecfec601650de93John McCall receiverType = RefExpr->getSuperReceiverType(); 6974b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 6984b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(InstanceReceiver); 6994b9c2d235fb9449e249d74f48ecfec601650de93John McCall receiverType = InstanceReceiver->getType(); 7004b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 701c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (!Getter->isImplicit()) 702c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.DiagnoseUseOfDecl(Getter, GenericLoc, nullptr, true); 7034b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Build a message-send. 7044b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult msg; 7056bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if ((Getter->isInstanceMethod() && !RefExpr->isClassReceiver()) || 7066bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines RefExpr->isObjectReceiver()) { 7074b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(InstanceReceiver || RefExpr->isSuperReceiver()); 708746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis msg = S.BuildInstanceMessageImplicit(InstanceReceiver, receiverType, 709746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis GenericLoc, Getter->getSelector(), 71062ed889272d7e9da8e367d8682fdcdeeec0d83b5Dmitri Gribenko Getter, None); 7114b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 712746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis msg = S.BuildClassMessageImplicit(receiverType, RefExpr->isSuperReceiver(), 71362ed889272d7e9da8e367d8682fdcdeeec0d83b5Dmitri Gribenko GenericLoc, Getter->getSelector(), 71462ed889272d7e9da8e367d8682fdcdeeec0d83b5Dmitri Gribenko Getter, None); 7154b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7164b9c2d235fb9449e249d74f48ecfec601650de93John McCall return msg; 7173c3b7f90a863af43fa63043d396553ecf205351cJohn McCall} 7183c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 7194b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Store to an Objective-C property reference. 7204b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 72170517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko/// \param captureSetValueAsResult If true, capture the actual 7224b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// value being set as the value of the property operation. 7234b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult ObjCPropertyOpBuilder::buildSet(Expr *op, SourceLocation opcLoc, 7244b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool captureSetValueAsResult) { 725176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (!findSetter(false)) { 726176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines DiagnoseUnsupportedPropertyUse(); 727176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return ExprError(); 728176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 7294b9c2d235fb9449e249d74f48ecfec601650de93John McCall 730b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis if (SyntacticRefExpr) 731b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis SyntacticRefExpr->setIsMessagingSetter(); 732b085d898bdfe35097eba45f4072b0f6865f561dcArgyrios Kyrtzidis 7334b9c2d235fb9449e249d74f48ecfec601650de93John McCall QualType receiverType; 7344b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (RefExpr->isClassReceiver()) { 7354b9c2d235fb9449e249d74f48ecfec601650de93John McCall receiverType = S.Context.getObjCInterfaceType(RefExpr->getClassReceiver()); 7364b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else if (RefExpr->isSuperReceiver()) { 7374b9c2d235fb9449e249d74f48ecfec601650de93John McCall receiverType = RefExpr->getSuperReceiverType(); 7384b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 7394b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(InstanceReceiver); 7404b9c2d235fb9449e249d74f48ecfec601650de93John McCall receiverType = InstanceReceiver->getType(); 7414b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7423c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 7434b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Use assignment constraints when possible; they give us better 7444b9c2d235fb9449e249d74f48ecfec601650de93John McCall // diagnostics. "When possible" basically means anything except a 7454b9c2d235fb9449e249d74f48ecfec601650de93John McCall // C++ class type. 7464e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().CPlusPlus || !op->getType()->isRecordType()) { 7474b9c2d235fb9449e249d74f48ecfec601650de93John McCall QualType paramType = (*Setter->param_begin())->getType(); 7484e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().CPlusPlus || !paramType->isRecordType()) { 7494b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult opResult = op; 7504b9c2d235fb9449e249d74f48ecfec601650de93John McCall Sema::AssignConvertType assignResult 7514b9c2d235fb9449e249d74f48ecfec601650de93John McCall = S.CheckSingleAssignmentConstraints(paramType, opResult); 7524b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (S.DiagnoseAssignmentResult(assignResult, opcLoc, paramType, 7534b9c2d235fb9449e249d74f48ecfec601650de93John McCall op->getType(), opResult.get(), 7544b9c2d235fb9449e249d74f48ecfec601650de93John McCall Sema::AA_Assigning)) 7554b9c2d235fb9449e249d74f48ecfec601650de93John McCall return ExprError(); 7564b9c2d235fb9449e249d74f48ecfec601650de93John McCall 757c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines op = opResult.get(); 7584b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(op && "successful assignment left argument invalid?"); 7593c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 760289a0d810fb35c960f33c33ff8b7185c11d04d5fFariborz Jahanian else if (OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(op)) { 761289a0d810fb35c960f33c33ff8b7185c11d04d5fFariborz Jahanian Expr *Initializer = OVE->getSourceExpr(); 762289a0d810fb35c960f33c33ff8b7185c11d04d5fFariborz Jahanian // passing C++11 style initialized temporaries to objc++ properties 763289a0d810fb35c960f33c33ff8b7185c11d04d5fFariborz Jahanian // requires special treatment by removing OpaqueValueExpr so type 764289a0d810fb35c960f33c33ff8b7185c11d04d5fFariborz Jahanian // conversion takes place and adding the OpaqueValueExpr later on. 765289a0d810fb35c960f33c33ff8b7185c11d04d5fFariborz Jahanian if (isa<InitListExpr>(Initializer) && 766289a0d810fb35c960f33c33ff8b7185c11d04d5fFariborz Jahanian Initializer->getType()->isVoidType()) { 767289a0d810fb35c960f33c33ff8b7185c11d04d5fFariborz Jahanian op = Initializer; 768289a0d810fb35c960f33c33ff8b7185c11d04d5fFariborz Jahanian } 769289a0d810fb35c960f33c33ff8b7185c11d04d5fFariborz Jahanian } 7704b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7713c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 7724b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Arguments. 7734b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *args[] = { op }; 7743c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 7754b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Build a message-send. 7764b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult msg; 777c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (!Setter->isImplicit()) 778c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.DiagnoseUseOfDecl(Setter, GenericLoc, nullptr, true); 7796bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if ((Setter->isInstanceMethod() && !RefExpr->isClassReceiver()) || 7806bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines RefExpr->isObjectReceiver()) { 781746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis msg = S.BuildInstanceMessageImplicit(InstanceReceiver, receiverType, 782746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis GenericLoc, SetterSelector, Setter, 783746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg(args, 1)); 7844b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 785746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis msg = S.BuildClassMessageImplicit(receiverType, RefExpr->isSuperReceiver(), 786746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis GenericLoc, 787746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis SetterSelector, Setter, 788746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg(args, 1)); 7894b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7903c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 7914b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (!msg.isInvalid() && captureSetValueAsResult) { 7924b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCMessageExpr *msgExpr = 7934b9c2d235fb9449e249d74f48ecfec601650de93John McCall cast<ObjCMessageExpr>(msg.get()->IgnoreImplicit()); 7944b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *arg = msgExpr->getArg(0); 795651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (CanCaptureValue(arg)) 79625f071eedf5d20faf9e1614d5ff5dc39b6de5041Eli Friedman msgExpr->setArg(0, captureValueAsResult(arg)); 7974b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7983c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 7994b9c2d235fb9449e249d74f48ecfec601650de93John McCall return msg; 8004b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 8014b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8024b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// @property-specific behavior for doing lvalue-to-rvalue conversion. 8034b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult ObjCPropertyOpBuilder::buildRValueOperation(Expr *op) { 8044b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Explicit properties always have getters, but implicit ones don't. 8054b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Check that before proceeding. 806a70779f6b9a8135c3459bdeb1f0197b82ea0cb2aEli Friedman if (RefExpr->isImplicitProperty() && !RefExpr->getImplicitPropertyGetter()) { 8074b9c2d235fb9449e249d74f48ecfec601650de93John McCall S.Diag(RefExpr->getLocation(), diag::err_getter_not_found) 808a70779f6b9a8135c3459bdeb1f0197b82ea0cb2aEli Friedman << RefExpr->getSourceRange(); 8094b9c2d235fb9449e249d74f48ecfec601650de93John McCall return ExprError(); 8104b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 8114b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8124b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult result = PseudoOpBuilder::buildRValueOperation(op); 8134b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (result.isInvalid()) return ExprError(); 8144b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8154b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (RefExpr->isExplicitProperty() && !Getter->hasRelatedResultType()) 8164b9c2d235fb9449e249d74f48ecfec601650de93John McCall S.DiagnosePropertyAccessorMismatch(RefExpr->getExplicitProperty(), 8174b9c2d235fb9449e249d74f48ecfec601650de93John McCall Getter, RefExpr->getLocation()); 8184b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8194b9c2d235fb9449e249d74f48ecfec601650de93John McCall // As a special case, if the method returns 'id', try to get 8204b9c2d235fb9449e249d74f48ecfec601650de93John McCall // a better type from the property. 821c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (RefExpr->isExplicitProperty() && result.get()->isRValue()) { 8224b9c2d235fb9449e249d74f48ecfec601650de93John McCall QualType propType = RefExpr->getExplicitProperty()->getType(); 823c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (result.get()->getType()->isObjCIdType()) { 824c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (const ObjCObjectPointerType *ptr 825c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines = propType->getAs<ObjCObjectPointerType>()) { 826c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (!ptr->isObjCIdType()) 827c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines result = S.ImpCastExprToType(result.get(), propType, CK_BitCast); 828c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines } 829c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines } 830c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (S.getLangOpts().ObjCAutoRefCount) { 831c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines Qualifiers::ObjCLifetime LT = propType.getObjCLifetime(); 832c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (LT == Qualifiers::OCL_Weak) 833c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (!S.Diags.isIgnored(diag::warn_arc_repeated_use_of_weak, RefExpr->getLocation())) 834c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.getCurFunction()->markSafeWeakUse(RefExpr); 8353c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 8364b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 8374b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8384b9c2d235fb9449e249d74f48ecfec601650de93John McCall return result; 8393c3b7f90a863af43fa63043d396553ecf205351cJohn McCall} 8403c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 8414b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Try to build this as a call to a getter that returns a reference. 8424b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 8434b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// \return true if it was possible, whether or not it actually 8444b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// succeeded 8454b9c2d235fb9449e249d74f48ecfec601650de93John McCallbool ObjCPropertyOpBuilder::tryBuildGetOfReference(Expr *op, 8464b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult &result) { 8474e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().CPlusPlus) return false; 8484b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8494b9c2d235fb9449e249d74f48ecfec601650de93John McCall findGetter(); 850176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (!Getter) { 851176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines // The property has no setter and no getter! This can happen if the type is 852176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines // invalid. Error have already been reported. 853176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines result = ExprError(); 854176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return true; 855176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 8564b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8574b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Only do this if the getter returns an l-value reference type. 858651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType resultType = Getter->getReturnType(); 8594b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (!resultType->isLValueReferenceType()) return false; 8604b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8614b9c2d235fb9449e249d74f48ecfec601650de93John McCall result = buildRValueOperation(op); 8624b9c2d235fb9449e249d74f48ecfec601650de93John McCall return true; 8634b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 8644b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8654b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// @property-specific behavior for doing assignments. 8664b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult 8674b9c2d235fb9449e249d74f48ecfec601650de93John McCallObjCPropertyOpBuilder::buildAssignmentOperation(Scope *Sc, 8684b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceLocation opcLoc, 8694b9c2d235fb9449e249d74f48ecfec601650de93John McCall BinaryOperatorKind opcode, 8704b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *LHS, Expr *RHS) { 8714b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(BinaryOperator::isAssignmentOp(opcode)); 8723c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 8733c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // If there's no setter, we have no choice but to try to assign to 8743c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // the result of the getter. 8754b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (!findSetter()) { 8764b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult result; 8774b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (tryBuildGetOfReference(LHS, result)) { 8784b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (result.isInvalid()) return ExprError(); 879c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines return S.BuildBinOp(Sc, opcLoc, opcode, result.get(), RHS); 8803c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 8813c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 8823c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Otherwise, it's an error. 8834b9c2d235fb9449e249d74f48ecfec601650de93John McCall S.Diag(opcLoc, diag::err_nosetter_property_assignment) 8844b9c2d235fb9449e249d74f48ecfec601650de93John McCall << unsigned(RefExpr->isImplicitProperty()) 8854b9c2d235fb9449e249d74f48ecfec601650de93John McCall << SetterSelector 8864b9c2d235fb9449e249d74f48ecfec601650de93John McCall << LHS->getSourceRange() << RHS->getSourceRange(); 8873c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return ExprError(); 8883c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 8893c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 8904b9c2d235fb9449e249d74f48ecfec601650de93John McCall // If there is a setter, we definitely want to use it. 8914b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8924b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Verify that we can do a compound assignment. 8934b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (opcode != BO_Assign && !findGetter()) { 8944b9c2d235fb9449e249d74f48ecfec601650de93John McCall S.Diag(opcLoc, diag::err_nogetter_property_compound_assignment) 8954b9c2d235fb9449e249d74f48ecfec601650de93John McCall << LHS->getSourceRange() << RHS->getSourceRange(); 8963c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return ExprError(); 8973c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 8983c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 8994b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult result = 9004b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoOpBuilder::buildAssignmentOperation(Sc, opcLoc, opcode, LHS, RHS); 9013c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (result.isInvalid()) return ExprError(); 9023c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 9034b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Various warnings about property assignments in ARC. 9044e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().ObjCAutoRefCount && InstanceReceiver) { 9054b9c2d235fb9449e249d74f48ecfec601650de93John McCall S.checkRetainCycles(InstanceReceiver->getSourceExpr(), RHS); 9064b9c2d235fb9449e249d74f48ecfec601650de93John McCall S.checkUnsafeExprAssigns(opcLoc, LHS, RHS); 9074b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 9084b9c2d235fb9449e249d74f48ecfec601650de93John McCall 9093c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return result; 9103c3b7f90a863af43fa63043d396553ecf205351cJohn McCall} 9113c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 9124b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// @property-specific behavior for doing increments and decrements. 9134b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult 9144b9c2d235fb9449e249d74f48ecfec601650de93John McCallObjCPropertyOpBuilder::buildIncDecOperation(Scope *Sc, SourceLocation opcLoc, 9154b9c2d235fb9449e249d74f48ecfec601650de93John McCall UnaryOperatorKind opcode, 9164b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *op) { 9173c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // If there's no setter, we have no choice but to try to assign to 9183c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // the result of the getter. 9194b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (!findSetter()) { 9204b9c2d235fb9449e249d74f48ecfec601650de93John McCall ExprResult result; 9214b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (tryBuildGetOfReference(op, result)) { 9224b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (result.isInvalid()) return ExprError(); 923c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines return S.BuildUnaryOp(Sc, opcLoc, opcode, result.get()); 9243c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 9253c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 9263c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Otherwise, it's an error. 9274b9c2d235fb9449e249d74f48ecfec601650de93John McCall S.Diag(opcLoc, diag::err_nosetter_property_incdec) 9284b9c2d235fb9449e249d74f48ecfec601650de93John McCall << unsigned(RefExpr->isImplicitProperty()) 9294b9c2d235fb9449e249d74f48ecfec601650de93John McCall << unsigned(UnaryOperator::isDecrementOp(opcode)) 9304b9c2d235fb9449e249d74f48ecfec601650de93John McCall << SetterSelector 9314b9c2d235fb9449e249d74f48ecfec601650de93John McCall << op->getSourceRange(); 9323c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return ExprError(); 9333c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 9343c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 9353c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // If there is a setter, we definitely want to use it. 9363c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 9374b9c2d235fb9449e249d74f48ecfec601650de93John McCall // We also need a getter. 9384b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (!findGetter()) { 9394b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(RefExpr->isImplicitProperty()); 9404b9c2d235fb9449e249d74f48ecfec601650de93John McCall S.Diag(opcLoc, diag::err_nogetter_property_incdec) 9414b9c2d235fb9449e249d74f48ecfec601650de93John McCall << unsigned(UnaryOperator::isDecrementOp(opcode)) 942a2c91e75c944e3599fb108db600f91c47c8b4342Fariborz Jahanian << GetterSelector 9434b9c2d235fb9449e249d74f48ecfec601650de93John McCall << op->getSourceRange(); 9444b9c2d235fb9449e249d74f48ecfec601650de93John McCall return ExprError(); 9454b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 9463c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 9474b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoOpBuilder::buildIncDecOperation(Sc, opcLoc, opcode, op); 9484b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 9493c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 95058b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan RoseExprResult ObjCPropertyOpBuilder::complete(Expr *SyntacticForm) { 951c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (S.getLangOpts().ObjCAutoRefCount && isWeakProperty() && 952c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines !S.Diags.isIgnored(diag::warn_arc_repeated_use_of_weak, 953c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines SyntacticForm->getLocStart())) 954569b4ad6506960f1a7f191107c185cb1566a7fbbFariborz Jahanian S.recordUseOfEvaluatedWeak(SyntacticRefExpr, 955569b4ad6506960f1a7f191107c185cb1566a7fbbFariborz Jahanian SyntacticRefExpr->isMessagingGetter()); 95658b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose 95758b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose return PseudoOpBuilder::complete(SyntacticForm); 95858b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose} 95958b6bdcdeb683a3504f2248a409e1f4e85876ceeJordan Rose 960ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek// ObjCSubscript build stuff. 961ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek// 962ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 963ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// objective-c subscripting-specific behavior for doing lvalue-to-rvalue 964ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// conversion. 965ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// FIXME. Remove this routine if it is proven that no additional 966ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// specifity is needed. 967ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult ObjCSubscriptOpBuilder::buildRValueOperation(Expr *op) { 968ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult result = PseudoOpBuilder::buildRValueOperation(op); 969ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (result.isInvalid()) return ExprError(); 970ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return result; 971ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 972ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 973ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// objective-c subscripting-specific behavior for doing assignments. 974ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult 975ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekObjCSubscriptOpBuilder::buildAssignmentOperation(Scope *Sc, 976ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation opcLoc, 977ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BinaryOperatorKind opcode, 978ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *LHS, Expr *RHS) { 979ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek assert(BinaryOperator::isAssignmentOp(opcode)); 980ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // There must be a method to do the Index'ed assignment. 981ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!findAtIndexSetter()) 982ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 983ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 984ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Verify that we can do a compound assignment. 985ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (opcode != BO_Assign && !findAtIndexGetter()) 986ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 987ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 988ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult result = 989ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek PseudoOpBuilder::buildAssignmentOperation(Sc, opcLoc, opcode, LHS, RHS); 990ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (result.isInvalid()) return ExprError(); 991ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 992ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Various warnings about objc Index'ed assignments in ARC. 9934e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().ObjCAutoRefCount && InstanceBase) { 994ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.checkRetainCycles(InstanceBase->getSourceExpr(), RHS); 995ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.checkUnsafeExprAssigns(opcLoc, LHS, RHS); 996ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 997ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 998ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return result; 999ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1000ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1001ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// Capture the base object of an Objective-C Index'ed expression. 1002ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExpr *ObjCSubscriptOpBuilder::rebuildAndCaptureObject(Expr *syntacticBase) { 10036bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines assert(InstanceBase == nullptr); 10046bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 1005ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Capture base expression in an OVE and rebuild the syntactic 1006ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // form to use the OVE as its base expression. 1007ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InstanceBase = capture(RefExpr->getBaseExpr()); 1008ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InstanceKey = capture(RefExpr->getKeyExpr()); 1009ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1010ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek syntacticBase = 1011ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCSubscriptRefRebuilder(S, InstanceBase, 1012ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InstanceKey).rebuild(syntacticBase); 1013ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1014ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return syntacticBase; 1015ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1016ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1017ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// CheckSubscriptingKind - This routine decide what type 1018ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// of indexing represented by "FromE" is being done. 1019ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekSema::ObjCSubscriptKind 1020ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Sema::CheckSubscriptingKind(Expr *FromE) { 1021ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If the expression already has integral or enumeration type, we're golden. 1022ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType T = FromE->getType(); 1023ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (T->isIntegralOrEnumerationType()) 1024ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return OS_Array; 1025ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1026ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If we don't have a class type in C++, there's no way we can get an 1027ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // expression of integral or enumeration type. 1028ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const RecordType *RecordTy = T->getAs<RecordType>(); 1029176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (!RecordTy && 1030176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines (T->isObjCObjectPointerType() || T->isVoidPointerType())) 1031ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // All other scalar cases are assumed to be dictionary indexing which 1032ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // caller handles, with diagnostics if needed. 1033ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return OS_Dictionary; 1034a78eca20429e55b041bffcea1938cd0df07a6ebdFariborz Jahanian if (!getLangOpts().CPlusPlus || 1035a78eca20429e55b041bffcea1938cd0df07a6ebdFariborz Jahanian !RecordTy || RecordTy->isIncompleteType()) { 1036ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // No indexing can be done. Issue diagnostics and quit. 1037a78eca20429e55b041bffcea1938cd0df07a6ebdFariborz Jahanian const Expr *IndexExpr = FromE->IgnoreParenImpCasts(); 1038a78eca20429e55b041bffcea1938cd0df07a6ebdFariborz Jahanian if (isa<StringLiteral>(IndexExpr)) 1039a78eca20429e55b041bffcea1938cd0df07a6ebdFariborz Jahanian Diag(FromE->getExprLoc(), diag::err_objc_subscript_pointer) 1040a78eca20429e55b041bffcea1938cd0df07a6ebdFariborz Jahanian << T << FixItHint::CreateInsertion(FromE->getExprLoc(), "@"); 1041a78eca20429e55b041bffcea1938cd0df07a6ebdFariborz Jahanian else 1042a78eca20429e55b041bffcea1938cd0df07a6ebdFariborz Jahanian Diag(FromE->getExprLoc(), diag::err_objc_subscript_type_conversion) 1043a78eca20429e55b041bffcea1938cd0df07a6ebdFariborz Jahanian << T; 1044ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return OS_Error; 1045ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1046ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1047ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // We must have a complete class type. 1048ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (RequireCompleteType(FromE->getExprLoc(), T, 1049d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_objc_index_incomplete_class_type, FromE)) 1050ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return OS_Error; 1051ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1052ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look for a conversion to an integral, enumeration type, or 1053ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // objective-C pointer type. 1054ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek int NoIntegrals=0, NoObjCIdPointers=0; 1055ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SmallVector<CXXConversionDecl *, 4> ConversionDecls; 10560e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 10570e2c34f92f00628d48968dfea096d36381f494cbStephen Hines for (NamedDecl *D : cast<CXXRecordDecl>(RecordTy->getDecl()) 10580e2c34f92f00628d48968dfea096d36381f494cbStephen Hines ->getVisibleConversionFunctions()) { 10590e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (CXXConversionDecl *Conversion = 10600e2c34f92f00628d48968dfea096d36381f494cbStephen Hines dyn_cast<CXXConversionDecl>(D->getUnderlyingDecl())) { 1061ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType CT = Conversion->getConversionType().getNonReferenceType(); 1062ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (CT->isIntegralOrEnumerationType()) { 1063ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ++NoIntegrals; 1064ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ConversionDecls.push_back(Conversion); 1065ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1066ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else if (CT->isObjCIdType() ||CT->isBlockPointerType()) { 1067ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ++NoObjCIdPointers; 1068ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ConversionDecls.push_back(Conversion); 1069ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1070ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1071ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1072ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (NoIntegrals ==1 && NoObjCIdPointers == 0) 1073ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return OS_Array; 1074ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (NoIntegrals == 0 && NoObjCIdPointers == 1) 1075ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return OS_Dictionary; 1076ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (NoIntegrals == 0 && NoObjCIdPointers == 0) { 1077ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // No conversion function was found. Issue diagnostic and return. 1078ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(FromE->getExprLoc(), diag::err_objc_subscript_type_conversion) 1079ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << FromE->getType(); 1080ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return OS_Error; 1081ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1082ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(FromE->getExprLoc(), diag::err_objc_multiple_subscript_type_conversion) 1083ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << FromE->getType(); 1084ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (unsigned int i = 0; i < ConversionDecls.size(); i++) 1085ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(ConversionDecls[i]->getLocation(), diag::not_conv_function_declared_at); 1086ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1087ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return OS_Error; 1088ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1089ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1090dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian/// CheckKeyForObjCARCConversion - This routine suggests bridge casting of CF 1091dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian/// objects used as dictionary subscript key objects. 1092dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanianstatic void CheckKeyForObjCARCConversion(Sema &S, QualType ContainerT, 1093dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian Expr *Key) { 1094dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian if (ContainerT.isNull()) 1095dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian return; 1096dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian // dictionary subscripting. 1097dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian // - (id)objectForKeyedSubscript:(id)key; 1098dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian IdentifierInfo *KeyIdents[] = { 1099dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian &S.Context.Idents.get("objectForKeyedSubscript") 1100dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian }; 1101dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian Selector GetterSelector = S.Context.Selectors.getSelector(1, KeyIdents); 1102dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian ObjCMethodDecl *Getter = S.LookupMethodInObjectType(GetterSelector, ContainerT, 1103dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian true /*instance*/); 1104dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian if (!Getter) 1105dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian return; 1106c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines QualType T = Getter->parameters()[0]->getType(); 1107dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian S.CheckObjCARCConversion(Key->getSourceRange(), 1108dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian T, Key, Sema::CCK_ImplicitConversion); 1109dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian} 1110dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian 1111ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekbool ObjCSubscriptOpBuilder::findAtIndexGetter() { 1112ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (AtIndexGetter) 1113ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return true; 1114ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1115ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *BaseExpr = RefExpr->getBaseExpr(); 1116ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType BaseT = BaseExpr->getType(); 1117ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1118ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType ResultType; 1119ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (const ObjCObjectPointerType *PTy = 1120ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseT->getAs<ObjCObjectPointerType>()) { 1121ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ResultType = PTy->getPointeeType(); 1122ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (const ObjCObjectType *iQFaceTy = 1123ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ResultType->getAsObjCQualifiedInterfaceType()) 1124ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ResultType = iQFaceTy->getBaseType(); 1125ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1126ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Sema::ObjCSubscriptKind Res = 1127ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.CheckSubscriptingKind(RefExpr->getKeyExpr()); 1128dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian if (Res == Sema::OS_Error) { 1129dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian if (S.getLangOpts().ObjCAutoRefCount) 1130dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian CheckKeyForObjCARCConversion(S, ResultType, 1131dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian RefExpr->getKeyExpr()); 1132ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return false; 1133dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian } 1134ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool arrayRef = (Res == Sema::OS_Array); 1135ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1136ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (ResultType.isNull()) { 1137ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(BaseExpr->getExprLoc(), diag::err_objc_subscript_base_type) 1138ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << BaseExpr->getType() << arrayRef; 1139ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return false; 1140ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1141ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!arrayRef) { 1142ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // dictionary subscripting. 1143ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // - (id)objectForKeyedSubscript:(id)key; 1144ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdentifierInfo *KeyIdents[] = { 1145ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &S.Context.Idents.get("objectForKeyedSubscript") 1146ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek }; 1147ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexGetterSelector = S.Context.Selectors.getSelector(1, KeyIdents); 1148ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1149ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else { 1150ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // - (id)objectAtIndexedSubscript:(size_t)index; 1151ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdentifierInfo *KeyIdents[] = { 1152ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &S.Context.Idents.get("objectAtIndexedSubscript") 1153ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek }; 1154ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1155ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexGetterSelector = S.Context.Selectors.getSelector(1, KeyIdents); 1156ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1157ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1158ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexGetter = S.LookupMethodInObjectType(AtIndexGetterSelector, ResultType, 1159ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek true /*instance*/); 1160ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool receiverIdType = (BaseT->isObjCIdType() || 1161ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseT->isObjCQualifiedIdType()); 1162ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 11634e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!AtIndexGetter && S.getLangOpts().DebuggerObjCLiteral) { 1164ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexGetter = ObjCMethodDecl::Create(S.Context, SourceLocation(), 1165ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), AtIndexGetterSelector, 1166ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Context.getObjCIdType() /*ReturnType*/, 11676bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr /*TypeSourceInfo */, 1168ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Context.getTranslationUnitDecl(), 1169ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek true /*Instance*/, false/*isVariadic*/, 11701e4691b9d8e1bdcc8ef62b323969d702c51b3c08Jordan Rose /*isPropertyAccessor=*/false, 1171ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 1172ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl::Required, 1173ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false); 1174ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *Argument = ParmVarDecl::Create(S.Context, AtIndexGetter, 1175ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 1176ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek arrayRef ? &S.Context.Idents.get("index") 1177ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : &S.Context.Idents.get("key"), 1178ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek arrayRef ? S.Context.UnsignedLongTy 1179ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : S.Context.getObjCIdType(), 11806bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*TInfo=*/nullptr, 1181ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 11826bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr); 11835543169296beeb183b9c9392debc774fcf493eebDmitri Gribenko AtIndexGetter->setMethodParams(S.Context, Argument, None); 1184ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1185ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1186ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!AtIndexGetter) { 1187ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!receiverIdType) { 1188ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(BaseExpr->getExprLoc(), diag::err_objc_subscript_method_not_found) 1189ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << BaseExpr->getType() << 0 << arrayRef; 1190ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return false; 1191ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1192ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexGetter = 1193ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.LookupInstanceMethodInGlobalPool(AtIndexGetterSelector, 1194ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek RefExpr->getSourceRange(), 119533337ca4d89605025818daf83390ab4271d598d9Pirama Arumuga Nainar true); 1196ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1197ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1198ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (AtIndexGetter) { 1199c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines QualType T = AtIndexGetter->parameters()[0]->getType(); 1200ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if ((arrayRef && !T->isIntegralOrEnumerationType()) || 1201ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek (!arrayRef && !T->isObjCObjectPointerType())) { 1202ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(RefExpr->getKeyExpr()->getExprLoc(), 1203ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek arrayRef ? diag::err_objc_subscript_index_type 1204ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : diag::err_objc_subscript_key_type) << T; 1205c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.Diag(AtIndexGetter->parameters()[0]->getLocation(), 1206ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_parameter_type) << T; 1207ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return false; 1208ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1209651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType R = AtIndexGetter->getReturnType(); 1210ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!R->isObjCObjectPointerType()) { 1211ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(RefExpr->getKeyExpr()->getExprLoc(), 1212ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::err_objc_indexing_method_result_type) << R << arrayRef; 1213ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(AtIndexGetter->getLocation(), diag::note_method_declared_at) << 1214ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexGetter->getDeclName(); 1215ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1216ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1217ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return true; 1218ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1219ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1220ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekbool ObjCSubscriptOpBuilder::findAtIndexSetter() { 1221ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (AtIndexSetter) 1222ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return true; 1223ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1224ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *BaseExpr = RefExpr->getBaseExpr(); 1225ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType BaseT = BaseExpr->getType(); 1226ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1227ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType ResultType; 1228ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (const ObjCObjectPointerType *PTy = 1229ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseT->getAs<ObjCObjectPointerType>()) { 1230ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ResultType = PTy->getPointeeType(); 1231ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (const ObjCObjectType *iQFaceTy = 1232ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ResultType->getAsObjCQualifiedInterfaceType()) 1233ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ResultType = iQFaceTy->getBaseType(); 1234ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1235ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1236ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Sema::ObjCSubscriptKind Res = 1237ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.CheckSubscriptingKind(RefExpr->getKeyExpr()); 1238dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian if (Res == Sema::OS_Error) { 1239dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian if (S.getLangOpts().ObjCAutoRefCount) 1240dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian CheckKeyForObjCARCConversion(S, ResultType, 1241dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian RefExpr->getKeyExpr()); 1242ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return false; 1243dc48305e319c56f6f305c12b9faecdc378dfebdcFariborz Jahanian } 1244ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool arrayRef = (Res == Sema::OS_Array); 1245ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1246ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (ResultType.isNull()) { 1247ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(BaseExpr->getExprLoc(), diag::err_objc_subscript_base_type) 1248ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << BaseExpr->getType() << arrayRef; 1249ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return false; 1250ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1251ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1252ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!arrayRef) { 1253ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // dictionary subscripting. 1254ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // - (void)setObject:(id)object forKeyedSubscript:(id)key; 1255ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdentifierInfo *KeyIdents[] = { 1256ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &S.Context.Idents.get("setObject"), 1257ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &S.Context.Idents.get("forKeyedSubscript") 1258ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek }; 1259ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexSetterSelector = S.Context.Selectors.getSelector(2, KeyIdents); 1260ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1261ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else { 1262ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // - (void)setObject:(id)object atIndexedSubscript:(NSInteger)index; 1263ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdentifierInfo *KeyIdents[] = { 1264ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &S.Context.Idents.get("setObject"), 1265ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &S.Context.Idents.get("atIndexedSubscript") 1266ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek }; 1267ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexSetterSelector = S.Context.Selectors.getSelector(2, KeyIdents); 1268ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1269ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexSetter = S.LookupMethodInObjectType(AtIndexSetterSelector, ResultType, 1270ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek true /*instance*/); 1271ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1272ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool receiverIdType = (BaseT->isObjCIdType() || 1273ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseT->isObjCQualifiedIdType()); 1274ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 12754e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!AtIndexSetter && S.getLangOpts().DebuggerObjCLiteral) { 12766bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TypeSourceInfo *ReturnTInfo = nullptr; 1277ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType ReturnType = S.Context.VoidTy; 1278651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines AtIndexSetter = ObjCMethodDecl::Create( 1279651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines S.Context, SourceLocation(), SourceLocation(), AtIndexSetterSelector, 1280651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ReturnType, ReturnTInfo, S.Context.getTranslationUnitDecl(), 1281651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines true /*Instance*/, false /*isVariadic*/, 1282651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isPropertyAccessor=*/false, 1283651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 1284651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodDecl::Required, false); 1285ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SmallVector<ParmVarDecl *, 2> Params; 1286ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *object = ParmVarDecl::Create(S.Context, AtIndexSetter, 1287ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 1288ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &S.Context.Idents.get("object"), 1289ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Context.getObjCIdType(), 12906bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*TInfo=*/nullptr, 1291ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 12926bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr); 1293ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(object); 1294ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *key = ParmVarDecl::Create(S.Context, AtIndexSetter, 1295ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 1296ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek arrayRef ? &S.Context.Idents.get("index") 1297ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : &S.Context.Idents.get("key"), 1298ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek arrayRef ? S.Context.UnsignedLongTy 1299ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : S.Context.getObjCIdType(), 13006bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*TInfo=*/nullptr, 1301ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 13026bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr); 1303ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(key); 13045543169296beeb183b9c9392debc774fcf493eebDmitri Gribenko AtIndexSetter->setMethodParams(S.Context, Params, None); 1305ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1306ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1307ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!AtIndexSetter) { 1308ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!receiverIdType) { 1309ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(BaseExpr->getExprLoc(), 1310ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::err_objc_subscript_method_not_found) 1311ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << BaseExpr->getType() << 1 << arrayRef; 1312ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return false; 1313ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1314ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexSetter = 1315ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.LookupInstanceMethodInGlobalPool(AtIndexSetterSelector, 1316ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek RefExpr->getSourceRange(), 131733337ca4d89605025818daf83390ab4271d598d9Pirama Arumuga Nainar true); 1318ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1319ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1320ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool err = false; 1321ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (AtIndexSetter && arrayRef) { 1322c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines QualType T = AtIndexSetter->parameters()[1]->getType(); 1323ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!T->isIntegralOrEnumerationType()) { 1324ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(RefExpr->getKeyExpr()->getExprLoc(), 1325ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::err_objc_subscript_index_type) << T; 1326c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.Diag(AtIndexSetter->parameters()[1]->getLocation(), 1327ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_parameter_type) << T; 1328ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek err = true; 1329ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1330c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines T = AtIndexSetter->parameters()[0]->getType(); 1331ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!T->isObjCObjectPointerType()) { 1332ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(RefExpr->getBaseExpr()->getExprLoc(), 1333ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::err_objc_subscript_object_type) << T << arrayRef; 1334c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.Diag(AtIndexSetter->parameters()[0]->getLocation(), 1335ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_parameter_type) << T; 1336ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek err = true; 1337ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1338ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1339ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else if (AtIndexSetter && !arrayRef) 1340ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (unsigned i=0; i <2; i++) { 1341c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines QualType T = AtIndexSetter->parameters()[i]->getType(); 1342ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!T->isObjCObjectPointerType()) { 1343ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (i == 1) 1344ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(RefExpr->getKeyExpr()->getExprLoc(), 1345ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::err_objc_subscript_key_type) << T; 1346ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else 1347ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(RefExpr->getBaseExpr()->getExprLoc(), 1348ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::err_objc_subscript_dic_object_type) << T; 1349c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.Diag(AtIndexSetter->parameters()[i]->getLocation(), 1350ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_parameter_type) << T; 1351ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek err = true; 1352ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1353ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1354ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1355ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return !err; 1356ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1357ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1358ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek// Get the object at "Index" position in the container. 1359ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek// [BaseExpr objectAtIndexedSubscript : IndexExpr]; 1360ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult ObjCSubscriptOpBuilder::buildGet() { 1361ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!findAtIndexGetter()) 1362ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 1363ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1364ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType receiverType = InstanceBase->getType(); 1365ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1366ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Build a message-send. 1367ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult msg; 1368ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *Index = InstanceKey; 1369ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1370ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Arguments. 1371ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *args[] = { Index }; 1372ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek assert(InstanceBase); 1373c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (AtIndexGetter) 1374c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.DiagnoseUseOfDecl(AtIndexGetter, GenericLoc); 1375ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek msg = S.BuildInstanceMessageImplicit(InstanceBase, receiverType, 1376ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek GenericLoc, 1377ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexGetterSelector, AtIndexGetter, 1378ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek MultiExprArg(args, 1)); 1379ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return msg; 1380ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1381ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1382ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// Store into the container the "op" object at "Index"'ed location 1383ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// by building this messaging expression: 1384ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// - (void)setObject:(id)object atIndexedSubscript:(NSInteger)index; 138570517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko/// \param captureSetValueAsResult If true, capture the actual 1386ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// value being set as the value of the property operation. 1387ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult ObjCSubscriptOpBuilder::buildSet(Expr *op, SourceLocation opcLoc, 1388ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool captureSetValueAsResult) { 1389ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!findAtIndexSetter()) 1390ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 1391c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines if (AtIndexSetter) 1392c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines S.DiagnoseUseOfDecl(AtIndexSetter, GenericLoc); 1393ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType receiverType = InstanceBase->getType(); 1394ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *Index = InstanceKey; 1395ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1396ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Arguments. 1397ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *args[] = { op, Index }; 1398ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1399ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Build a message-send. 1400ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult msg = S.BuildInstanceMessageImplicit(InstanceBase, receiverType, 1401ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek GenericLoc, 1402ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexSetterSelector, 1403ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AtIndexSetter, 1404ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek MultiExprArg(args, 2)); 1405ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1406ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!msg.isInvalid() && captureSetValueAsResult) { 1407ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMessageExpr *msgExpr = 1408ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek cast<ObjCMessageExpr>(msg.get()->IgnoreImplicit()); 1409ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *arg = msgExpr->getArg(0); 1410651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (CanCaptureValue(arg)) 141125f071eedf5d20faf9e1614d5ff5dc39b6de5041Eli Friedman msgExpr->setArg(0, captureValueAsResult(arg)); 1412ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1413ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1414ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return msg; 1415ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1416ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 14174b9c2d235fb9449e249d74f48ecfec601650de93John McCall//===----------------------------------------------------------------------===// 141876da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall// MSVC __declspec(property) references 141976da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall//===----------------------------------------------------------------------===// 142076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 142176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCallExpr *MSPropertyOpBuilder::rebuildAndCaptureObject(Expr *syntacticBase) { 142276da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall Expr *NewBase = capture(RefExpr->getBaseExpr()); 142376da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 142476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall syntacticBase = 142576da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall MSPropertyRefRebuilder(S, NewBase).rebuild(syntacticBase); 142676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 142776da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall return syntacticBase; 142876da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall} 142976da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 143076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCallExprResult MSPropertyOpBuilder::buildGet() { 143176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall if (!RefExpr->getPropertyDecl()->hasGetter()) { 1432651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines S.Diag(RefExpr->getMemberLoc(), diag::err_no_accessor_for_property) 1433651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << 0 /* getter */ << RefExpr->getPropertyDecl(); 143476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall return ExprError(); 143576da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall } 143676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 143776da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall UnqualifiedId GetterName; 143876da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall IdentifierInfo *II = RefExpr->getPropertyDecl()->getGetterId(); 143976da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall GetterName.setIdentifier(II, RefExpr->getMemberLoc()); 144076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall CXXScopeSpec SS; 144176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall SS.Adopt(RefExpr->getQualifierLoc()); 144276da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall ExprResult GetterExpr = S.ActOnMemberAccessExpr( 144376da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall S.getCurScope(), RefExpr->getBaseExpr(), SourceLocation(), 144476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall RefExpr->isArrow() ? tok::arrow : tok::period, SS, SourceLocation(), 14450e2c34f92f00628d48968dfea096d36381f494cbStephen Hines GetterName, nullptr); 144676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall if (GetterExpr.isInvalid()) { 1447651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines S.Diag(RefExpr->getMemberLoc(), 1448651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines diag::error_cannot_find_suitable_accessor) << 0 /* getter */ 1449651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << RefExpr->getPropertyDecl(); 145076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall return ExprError(); 145176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall } 145276da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 145376da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall MultiExprArg ArgExprs; 1454c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines return S.ActOnCallExpr(S.getCurScope(), GetterExpr.get(), 145576da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall RefExpr->getSourceRange().getBegin(), ArgExprs, 145676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall RefExpr->getSourceRange().getEnd()); 145776da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall} 145876da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 145976da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCallExprResult MSPropertyOpBuilder::buildSet(Expr *op, SourceLocation sl, 146076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall bool captureSetValueAsResult) { 146176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall if (!RefExpr->getPropertyDecl()->hasSetter()) { 1462651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines S.Diag(RefExpr->getMemberLoc(), diag::err_no_accessor_for_property) 1463651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << 1 /* setter */ << RefExpr->getPropertyDecl(); 146476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall return ExprError(); 146576da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall } 146676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 146776da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall UnqualifiedId SetterName; 146876da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall IdentifierInfo *II = RefExpr->getPropertyDecl()->getSetterId(); 146976da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall SetterName.setIdentifier(II, RefExpr->getMemberLoc()); 147076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall CXXScopeSpec SS; 147176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall SS.Adopt(RefExpr->getQualifierLoc()); 147276da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall ExprResult SetterExpr = S.ActOnMemberAccessExpr( 147376da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall S.getCurScope(), RefExpr->getBaseExpr(), SourceLocation(), 147476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall RefExpr->isArrow() ? tok::arrow : tok::period, SS, SourceLocation(), 14750e2c34f92f00628d48968dfea096d36381f494cbStephen Hines SetterName, nullptr); 147676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall if (SetterExpr.isInvalid()) { 1477651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines S.Diag(RefExpr->getMemberLoc(), 1478651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines diag::error_cannot_find_suitable_accessor) << 1 /* setter */ 1479651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << RefExpr->getPropertyDecl(); 148076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall return ExprError(); 148176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall } 148276da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 148376da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall SmallVector<Expr*, 1> ArgExprs; 148476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall ArgExprs.push_back(op); 1485c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines return S.ActOnCallExpr(S.getCurScope(), SetterExpr.get(), 148676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall RefExpr->getSourceRange().getBegin(), ArgExprs, 148776da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall op->getSourceRange().getEnd()); 148876da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall} 148976da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall 149076da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall//===----------------------------------------------------------------------===// 14914b9c2d235fb9449e249d74f48ecfec601650de93John McCall// General Sema routines. 14924b9c2d235fb9449e249d74f48ecfec601650de93John McCall//===----------------------------------------------------------------------===// 14933c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 14944b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult Sema::checkPseudoObjectRValue(Expr *E) { 14954b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *opaqueRef = E->IgnoreParens(); 14964b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (ObjCPropertyRefExpr *refExpr 14974b9c2d235fb9449e249d74f48ecfec601650de93John McCall = dyn_cast<ObjCPropertyRefExpr>(opaqueRef)) { 14984b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCPropertyOpBuilder builder(*this, refExpr); 14994b9c2d235fb9449e249d74f48ecfec601650de93John McCall return builder.buildRValueOperation(E); 1500ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1501ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else if (ObjCSubscriptRefExpr *refExpr 1502ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = dyn_cast<ObjCSubscriptRefExpr>(opaqueRef)) { 1503ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCSubscriptOpBuilder builder(*this, refExpr); 1504ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return builder.buildRValueOperation(E); 150576da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall } else if (MSPropertyRefExpr *refExpr 150676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall = dyn_cast<MSPropertyRefExpr>(opaqueRef)) { 150776da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall MSPropertyOpBuilder builder(*this, refExpr); 150876da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall return builder.buildRValueOperation(E); 15094b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 15104b9c2d235fb9449e249d74f48ecfec601650de93John McCall llvm_unreachable("unknown pseudo-object kind!"); 15113c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15124b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 15133c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15144b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Check an increment or decrement of a pseudo-object expression. 15154b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult Sema::checkPseudoObjectIncDec(Scope *Sc, SourceLocation opcLoc, 15164b9c2d235fb9449e249d74f48ecfec601650de93John McCall UnaryOperatorKind opcode, Expr *op) { 15174b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Do nothing if the operand is dependent. 15184b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (op->isTypeDependent()) 15194b9c2d235fb9449e249d74f48ecfec601650de93John McCall return new (Context) UnaryOperator(op, opcode, Context.DependentTy, 15204b9c2d235fb9449e249d74f48ecfec601650de93John McCall VK_RValue, OK_Ordinary, opcLoc); 15214b9c2d235fb9449e249d74f48ecfec601650de93John McCall 15224b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(UnaryOperator::isIncrementDecrementOp(opcode)); 15234b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *opaqueRef = op->IgnoreParens(); 15244b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (ObjCPropertyRefExpr *refExpr 15254b9c2d235fb9449e249d74f48ecfec601650de93John McCall = dyn_cast<ObjCPropertyRefExpr>(opaqueRef)) { 15264b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCPropertyOpBuilder builder(*this, refExpr); 15274b9c2d235fb9449e249d74f48ecfec601650de93John McCall return builder.buildIncDecOperation(Sc, opcLoc, opcode, op); 1528ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } else if (isa<ObjCSubscriptRefExpr>(opaqueRef)) { 1529ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(opcLoc, diag::err_illegal_container_subscripting_op); 1530ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 153176da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall } else if (MSPropertyRefExpr *refExpr 153276da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall = dyn_cast<MSPropertyRefExpr>(opaqueRef)) { 153376da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall MSPropertyOpBuilder builder(*this, refExpr); 153476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall return builder.buildIncDecOperation(Sc, opcLoc, opcode, op); 15354b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 15364b9c2d235fb9449e249d74f48ecfec601650de93John McCall llvm_unreachable("unknown pseudo-object kind!"); 15373c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15384b9c2d235fb9449e249d74f48ecfec601650de93John McCall} 15393c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15404b9c2d235fb9449e249d74f48ecfec601650de93John McCallExprResult Sema::checkPseudoObjectAssignment(Scope *S, SourceLocation opcLoc, 15414b9c2d235fb9449e249d74f48ecfec601650de93John McCall BinaryOperatorKind opcode, 15424b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *LHS, Expr *RHS) { 15434b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Do nothing if either argument is dependent. 15444b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (LHS->isTypeDependent() || RHS->isTypeDependent()) 15454b9c2d235fb9449e249d74f48ecfec601650de93John McCall return new (Context) BinaryOperator(LHS, RHS, opcode, Context.DependentTy, 1546be9af1288881110e406b87914162eaa59f1e5918Lang Hames VK_RValue, OK_Ordinary, opcLoc, false); 15474b9c2d235fb9449e249d74f48ecfec601650de93John McCall 15484b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Filter out non-overload placeholder types in the RHS. 154932509f1e60451d86e9fbc473b6e853ba10b5fd1eJohn McCall if (RHS->getType()->isNonOverloadPlaceholderType()) { 155032509f1e60451d86e9fbc473b6e853ba10b5fd1eJohn McCall ExprResult result = CheckPlaceholderExpr(RHS); 155132509f1e60451d86e9fbc473b6e853ba10b5fd1eJohn McCall if (result.isInvalid()) return ExprError(); 1552c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines RHS = result.get(); 15534b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 15543c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15554b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *opaqueRef = LHS->IgnoreParens(); 15564b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (ObjCPropertyRefExpr *refExpr 15574b9c2d235fb9449e249d74f48ecfec601650de93John McCall = dyn_cast<ObjCPropertyRefExpr>(opaqueRef)) { 15584b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCPropertyOpBuilder builder(*this, refExpr); 15594b9c2d235fb9449e249d74f48ecfec601650de93John McCall return builder.buildAssignmentOperation(S, opcLoc, opcode, LHS, RHS); 1560ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } else if (ObjCSubscriptRefExpr *refExpr 1561ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = dyn_cast<ObjCSubscriptRefExpr>(opaqueRef)) { 1562ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCSubscriptOpBuilder builder(*this, refExpr); 1563ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return builder.buildAssignmentOperation(S, opcLoc, opcode, LHS, RHS); 156476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall } else if (MSPropertyRefExpr *refExpr 156576da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall = dyn_cast<MSPropertyRefExpr>(opaqueRef)) { 156676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall MSPropertyOpBuilder builder(*this, refExpr); 156776da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall return builder.buildAssignmentOperation(S, opcLoc, opcode, LHS, RHS); 15684b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 15694b9c2d235fb9449e249d74f48ecfec601650de93John McCall llvm_unreachable("unknown pseudo-object kind!"); 15704b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 15713c3b7f90a863af43fa63043d396553ecf205351cJohn McCall} 157201e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall 157301e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall/// Given a pseudo-object reference, rebuild it without the opaque 157401e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall/// values. Basically, undo the behavior of rebuildAndCaptureObject. 157501e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall/// This should never operate in-place. 157601e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCallstatic Expr *stripOpaqueValuesFromPseudoObjectRef(Sema &S, Expr *E) { 157701e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall Expr *opaqueRef = E->IgnoreParens(); 157801e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall if (ObjCPropertyRefExpr *refExpr 157901e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall = dyn_cast<ObjCPropertyRefExpr>(opaqueRef)) { 158088507ddf6f83b929454c04470924cf56b4b8147aDouglas Gregor // Class and super property references don't have opaque values in them. 158188507ddf6f83b929454c04470924cf56b4b8147aDouglas Gregor if (refExpr->isClassReceiver() || refExpr->isSuperReceiver()) 158288507ddf6f83b929454c04470924cf56b4b8147aDouglas Gregor return E; 158388507ddf6f83b929454c04470924cf56b4b8147aDouglas Gregor 158488507ddf6f83b929454c04470924cf56b4b8147aDouglas Gregor assert(refExpr->isObjectReceiver() && "Unknown receiver kind?"); 158588507ddf6f83b929454c04470924cf56b4b8147aDouglas Gregor OpaqueValueExpr *baseOVE = cast<OpaqueValueExpr>(refExpr->getBase()); 158688507ddf6f83b929454c04470924cf56b4b8147aDouglas Gregor return ObjCPropertyRefRebuilder(S, baseOVE->getSourceExpr()).rebuild(E); 1587ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } else if (ObjCSubscriptRefExpr *refExpr 1588ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = dyn_cast<ObjCSubscriptRefExpr>(opaqueRef)) { 1589ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek OpaqueValueExpr *baseOVE = cast<OpaqueValueExpr>(refExpr->getBaseExpr()); 1590ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek OpaqueValueExpr *keyOVE = cast<OpaqueValueExpr>(refExpr->getKeyExpr()); 1591ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ObjCSubscriptRefRebuilder(S, baseOVE->getSourceExpr(), 1592ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek keyOVE->getSourceExpr()).rebuild(E); 159376da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall } else if (MSPropertyRefExpr *refExpr 159476da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall = dyn_cast<MSPropertyRefExpr>(opaqueRef)) { 159576da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall OpaqueValueExpr *baseOVE = cast<OpaqueValueExpr>(refExpr->getBaseExpr()); 159676da55d3a49e1805f51b1ced7c5da5bcd7f759d8John McCall return MSPropertyRefRebuilder(S, baseOVE->getSourceExpr()).rebuild(E); 159701e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall } else { 159801e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall llvm_unreachable("unknown pseudo-object kind!"); 159901e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall } 160001e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall} 160101e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall 160201e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall/// Given a pseudo-object expression, recreate what it looks like 160301e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall/// syntactically without the attendant OpaqueValueExprs. 160401e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall/// 160501e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall/// This is a hack which should be removed when TreeTransform is 160601e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall/// capable of rebuilding a tree without stripping implicit 160701e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall/// operations. 160801e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCallExpr *Sema::recreateSyntacticForm(PseudoObjectExpr *E) { 160901e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall Expr *syntax = E->getSyntacticForm(); 161001e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall if (UnaryOperator *uop = dyn_cast<UnaryOperator>(syntax)) { 161101e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall Expr *op = stripOpaqueValuesFromPseudoObjectRef(*this, uop->getSubExpr()); 161201e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall return new (Context) UnaryOperator(op, uop->getOpcode(), uop->getType(), 161301e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall uop->getValueKind(), uop->getObjectKind(), 161401e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall uop->getOperatorLoc()); 161501e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall } else if (CompoundAssignOperator *cop 161601e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall = dyn_cast<CompoundAssignOperator>(syntax)) { 161701e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall Expr *lhs = stripOpaqueValuesFromPseudoObjectRef(*this, cop->getLHS()); 161801e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall Expr *rhs = cast<OpaqueValueExpr>(cop->getRHS())->getSourceExpr(); 161901e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall return new (Context) CompoundAssignOperator(lhs, rhs, cop->getOpcode(), 162001e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall cop->getType(), 162101e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall cop->getValueKind(), 162201e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall cop->getObjectKind(), 162301e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall cop->getComputationLHSType(), 162401e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall cop->getComputationResultType(), 1625be9af1288881110e406b87914162eaa59f1e5918Lang Hames cop->getOperatorLoc(), false); 162601e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall } else if (BinaryOperator *bop = dyn_cast<BinaryOperator>(syntax)) { 162701e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall Expr *lhs = stripOpaqueValuesFromPseudoObjectRef(*this, bop->getLHS()); 162801e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall Expr *rhs = cast<OpaqueValueExpr>(bop->getRHS())->getSourceExpr(); 162901e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall return new (Context) BinaryOperator(lhs, rhs, bop->getOpcode(), 163001e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall bop->getType(), bop->getValueKind(), 163101e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall bop->getObjectKind(), 1632be9af1288881110e406b87914162eaa59f1e5918Lang Hames bop->getOperatorLoc(), false); 163301e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall } else { 163401e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall assert(syntax->hasPlaceholderType(BuiltinType::PseudoObject)); 163501e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall return stripOpaqueValuesFromPseudoObjectRef(*this, syntax); 163601e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall } 163701e19be69a37bc4ab7746c454cfaa6aec7bb7c6aJohn McCall} 1638