зеркало из https://github.com/microsoft/clang-1.git
Improve the tracking of source locations for parentheses in constructor calls.
This adds them where missing, and traces them through PCH. We fix at least one bug in the extents found by the Index library, and make a lot of refactoring tools which care about the exact formulation of a constructor call easier to write. Also some minor cleanups to more consistently follow the friend pattern instead of the setter pattern when rebuilding a serialized AST. Patch originally by Samuel Benzaquen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117254 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
Родитель
8c5e5d6d8a
Коммит
428edafa9e
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@ -712,6 +712,7 @@ private:
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CXXConstructorDecl *Constructor;
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SourceLocation Loc;
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SourceRange ParenRange;
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bool Elidable : 1;
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bool ZeroInitialization : 1;
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unsigned ConstructKind : 2;
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@ -724,7 +725,8 @@ protected:
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CXXConstructorDecl *d, bool elidable,
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Expr **args, unsigned numargs,
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bool ZeroInitialization = false,
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ConstructionKind ConstructKind = CK_Complete);
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ConstructionKind ConstructKind = CK_Complete,
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SourceRange ParenRange = SourceRange());
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/// \brief Construct an empty C++ construction expression.
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CXXConstructExpr(StmtClass SC, EmptyShell Empty)
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@ -743,7 +745,8 @@ public:
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CXXConstructorDecl *D, bool Elidable,
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Expr **Args, unsigned NumArgs,
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bool ZeroInitialization = false,
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ConstructionKind ConstructKind = CK_Complete);
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ConstructionKind ConstructKind = CK_Complete,
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SourceRange ParenRange = SourceRange());
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CXXConstructorDecl* getConstructor() const { return Constructor; }
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@ -800,6 +803,7 @@ public:
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}
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virtual SourceRange getSourceRange() const;
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SourceRange getParenRange() const { return ParenRange; }
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static bool classof(const Stmt *T) {
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return T->getStmtClass() == CXXConstructExprClass ||
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@ -872,20 +876,18 @@ public:
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/// };
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/// @endcode
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class CXXTemporaryObjectExpr : public CXXConstructExpr {
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SourceLocation RParenLoc;
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TypeSourceInfo *Type;
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public:
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CXXTemporaryObjectExpr(ASTContext &C, CXXConstructorDecl *Cons,
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TypeSourceInfo *Type,
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Expr **Args,unsigned NumArgs,
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SourceLocation rParenLoc,
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SourceRange parenRange,
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bool ZeroInitialization = false);
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explicit CXXTemporaryObjectExpr(EmptyShell Empty)
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: CXXConstructExpr(CXXTemporaryObjectExprClass, Empty), Type() { }
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TypeSourceInfo *getTypeSourceInfo() const { return Type; }
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SourceLocation getRParenLoc() const { return RParenLoc; }
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virtual SourceRange getSourceRange() const;
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@ -974,6 +976,8 @@ class CXXNewExpr : public Expr {
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SourceLocation StartLoc;
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SourceLocation EndLoc;
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SourceLocation ConstructorLParen;
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SourceLocation ConstructorRParen;
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friend class ASTStmtReader;
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public:
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@ -984,7 +988,9 @@ public:
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Expr **constructorArgs, unsigned numConsArgs,
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FunctionDecl *operatorDelete, QualType ty,
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TypeSourceInfo *AllocatedTypeInfo,
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SourceLocation startLoc, SourceLocation endLoc);
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SourceLocation startLoc, SourceLocation endLoc,
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SourceLocation constructorLParen,
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SourceLocation constructorRParen);
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explicit CXXNewExpr(EmptyShell Shell)
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: Expr(CXXNewExprClass, Shell), SubExprs(0) { }
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@ -1080,11 +1086,11 @@ public:
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const_arg_iterator raw_arg_begin() const { return SubExprs; }
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const_arg_iterator raw_arg_end() const { return constructor_arg_end(); }
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SourceLocation getStartLoc() const { return StartLoc; }
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void setStartLoc(SourceLocation L) { StartLoc = L; }
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SourceLocation getEndLoc() const { return EndLoc; }
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void setEndLoc(SourceLocation L) { EndLoc = L; }
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SourceLocation getConstructorLParen() const { return ConstructorLParen; }
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SourceLocation getConstructorRParen() const { return ConstructorRParen; }
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virtual SourceRange getSourceRange() const {
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return SourceRange(StartLoc, EndLoc);
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@ -2065,7 +2065,8 @@ public:
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ExprResult
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BuildCXXConstructExpr(SourceLocation ConstructLoc, QualType DeclInitType,
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CXXConstructorDecl *Constructor, MultiExprArg Exprs,
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bool RequiresZeroInit, unsigned ConstructKind);
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bool RequiresZeroInit, unsigned ConstructKind,
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SourceRange ParenRange);
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// FIXME: Can re remove this and have the above BuildCXXConstructExpr check if
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// the constructor can be elidable?
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@ -2073,7 +2074,8 @@ public:
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BuildCXXConstructExpr(SourceLocation ConstructLoc, QualType DeclInitType,
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CXXConstructorDecl *Constructor, bool Elidable,
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MultiExprArg Exprs, bool RequiresZeroInit,
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unsigned ConstructKind);
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unsigned ConstructKind,
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SourceRange ParenRange);
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/// BuildCXXDefaultArgExpr - Creates a CXXDefaultArgExpr, instantiating
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/// the default expr if needed.
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@ -113,14 +113,16 @@ CXXNewExpr::CXXNewExpr(ASTContext &C, bool globalNew, FunctionDecl *operatorNew,
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Expr **constructorArgs, unsigned numConsArgs,
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FunctionDecl *operatorDelete, QualType ty,
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TypeSourceInfo *AllocatedTypeInfo,
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SourceLocation startLoc, SourceLocation endLoc)
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SourceLocation startLoc, SourceLocation endLoc,
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SourceLocation constructorLParen,
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SourceLocation constructorRParen)
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: Expr(CXXNewExprClass, ty, ty->isDependentType(), ty->isDependentType()),
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GlobalNew(globalNew),
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Initializer(initializer), SubExprs(0), OperatorNew(operatorNew),
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OperatorDelete(operatorDelete), Constructor(constructor),
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AllocatedTypeInfo(AllocatedTypeInfo), TypeIdParens(TypeIdParens),
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StartLoc(startLoc), EndLoc(endLoc) {
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StartLoc(startLoc), EndLoc(endLoc), ConstructorLParen(constructorLParen),
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ConstructorRParen(constructorRParen) {
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AllocateArgsArray(C, arraySize != 0, numPlaceArgs, numConsArgs);
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unsigned i = 0;
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if (Array)
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@ -345,15 +347,9 @@ StmtIterator DependentScopeDeclRefExpr::child_end() {
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}
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SourceRange CXXConstructExpr::getSourceRange() const {
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// FIXME: Should we know where the parentheses are, if there are any?
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for (std::reverse_iterator<Stmt**> I(&Args[NumArgs]), E(&Args[0]); I!=E;++I) {
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// Ignore CXXDefaultExprs when computing the range, as they don't
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// have a range.
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if (!isa<CXXDefaultArgExpr>(*I))
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return SourceRange(Loc, (*I)->getLocEnd());
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}
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return SourceRange(Loc);
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return ParenRange.isValid() ?
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SourceRange(Loc, ParenRange.getEnd()) :
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SourceRange(Loc);
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}
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SourceRange CXXOperatorCallExpr::getSourceRange() const {
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@ -535,17 +531,19 @@ CXXTemporaryObjectExpr::CXXTemporaryObjectExpr(ASTContext &C,
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TypeSourceInfo *Type,
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Expr **Args,
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unsigned NumArgs,
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SourceLocation rParenLoc,
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SourceRange parenRange,
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bool ZeroInitialization)
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: CXXConstructExpr(C, CXXTemporaryObjectExprClass,
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Type->getType().getNonReferenceType(),
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Type->getTypeLoc().getBeginLoc(),
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Cons, false, Args, NumArgs, ZeroInitialization),
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RParenLoc(rParenLoc), Type(Type) {
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Cons, false, Args, NumArgs, ZeroInitialization,
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CXXConstructExpr::CK_Complete, parenRange),
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Type(Type) {
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}
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SourceRange CXXTemporaryObjectExpr::getSourceRange() const {
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return SourceRange(Type->getTypeLoc().getBeginLoc(), RParenLoc);
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return SourceRange(Type->getTypeLoc().getBeginLoc(),
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getParenRange().getEnd());
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}
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CXXConstructExpr *CXXConstructExpr::Create(ASTContext &C, QualType T,
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@ -553,10 +551,11 @@ CXXConstructExpr *CXXConstructExpr::Create(ASTContext &C, QualType T,
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CXXConstructorDecl *D, bool Elidable,
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Expr **Args, unsigned NumArgs,
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bool ZeroInitialization,
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ConstructionKind ConstructKind) {
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ConstructionKind ConstructKind,
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SourceRange ParenRange) {
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return new (C) CXXConstructExpr(C, CXXConstructExprClass, T, Loc, D,
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Elidable, Args, NumArgs, ZeroInitialization,
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ConstructKind);
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ConstructKind, ParenRange);
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}
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CXXConstructExpr::CXXConstructExpr(ASTContext &C, StmtClass SC, QualType T,
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@ -564,12 +563,13 @@ CXXConstructExpr::CXXConstructExpr(ASTContext &C, StmtClass SC, QualType T,
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CXXConstructorDecl *D, bool elidable,
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Expr **args, unsigned numargs,
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bool ZeroInitialization,
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ConstructionKind ConstructKind)
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ConstructionKind ConstructKind,
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SourceRange ParenRange)
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: Expr(SC, T,
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T->isDependentType(),
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(T->isDependentType() ||
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CallExpr::hasAnyValueDependentArguments(args, numargs))),
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Constructor(D), Loc(Loc), Elidable(elidable),
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Constructor(D), Loc(Loc), ParenRange(ParenRange), Elidable(elidable),
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ZeroInitialization(ZeroInitialization), ConstructKind(ConstructKind),
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Args(0), NumArgs(numargs)
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{
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@ -5365,7 +5365,8 @@ Sema::BuildCXXConstructExpr(SourceLocation ConstructLoc, QualType DeclInitType,
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CXXConstructorDecl *Constructor,
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MultiExprArg ExprArgs,
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bool RequiresZeroInit,
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unsigned ConstructKind) {
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unsigned ConstructKind,
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SourceRange ParenRange) {
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bool Elidable = false;
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// C++0x [class.copy]p34:
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@ -5386,7 +5387,7 @@ Sema::BuildCXXConstructExpr(SourceLocation ConstructLoc, QualType DeclInitType,
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return BuildCXXConstructExpr(ConstructLoc, DeclInitType, Constructor,
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Elidable, move(ExprArgs), RequiresZeroInit,
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ConstructKind);
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ConstructKind, ParenRange);
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}
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/// BuildCXXConstructExpr - Creates a complete call to a constructor,
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@ -5396,7 +5397,8 @@ Sema::BuildCXXConstructExpr(SourceLocation ConstructLoc, QualType DeclInitType,
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CXXConstructorDecl *Constructor, bool Elidable,
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MultiExprArg ExprArgs,
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bool RequiresZeroInit,
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unsigned ConstructKind) {
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unsigned ConstructKind,
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SourceRange ParenRange) {
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unsigned NumExprs = ExprArgs.size();
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Expr **Exprs = (Expr **)ExprArgs.release();
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@ -5404,15 +5406,18 @@ Sema::BuildCXXConstructExpr(SourceLocation ConstructLoc, QualType DeclInitType,
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return Owned(CXXConstructExpr::Create(Context, DeclInitType, ConstructLoc,
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Constructor, Elidable, Exprs, NumExprs,
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RequiresZeroInit,
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static_cast<CXXConstructExpr::ConstructionKind>(ConstructKind)));
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static_cast<CXXConstructExpr::ConstructionKind>(ConstructKind),
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ParenRange));
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}
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bool Sema::InitializeVarWithConstructor(VarDecl *VD,
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CXXConstructorDecl *Constructor,
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MultiExprArg Exprs) {
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// FIXME: Provide the correct paren SourceRange when available.
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ExprResult TempResult =
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BuildCXXConstructExpr(VD->getLocation(), VD->getType(), Constructor,
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move(Exprs), false, CXXConstructExpr::CK_Complete);
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move(Exprs), false, CXXConstructExpr::CK_Complete,
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SourceRange());
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if (TempResult.isInvalid())
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return true;
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@ -911,7 +911,8 @@ Sema::BuildCXXNew(SourceLocation StartLoc, bool UseGlobal,
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ResultType, AllocTypeInfo,
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StartLoc,
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Init ? ConstructorRParen :
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TypeRange.getEnd()));
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TypeRange.getEnd(),
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ConstructorLParen, ConstructorRParen));
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}
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/// CheckAllocatedType - Checks that a type is suitable as the allocated type
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@ -1668,7 +1669,8 @@ static ExprResult BuildCXXCastArgument(Sema &S,
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ExprResult Result =
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S.BuildCXXConstructExpr(CastLoc, Ty, cast<CXXConstructorDecl>(Method),
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move_arg(ConstructorArgs),
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/*ZeroInit*/ false, CXXConstructExpr::CK_Complete);
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/*ZeroInit*/ false, CXXConstructExpr::CK_Complete,
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SourceRange());
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if (Result.isInvalid())
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return ExprError();
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@ -1801,7 +1803,8 @@ Sema::PerformImplicitConversion(Expr *&From, QualType ToType,
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ToType, SCS.CopyConstructor,
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move_arg(ConstructorArgs),
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/*ZeroInit*/ false,
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CXXConstructExpr::CK_Complete);
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CXXConstructExpr::CK_Complete,
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SourceRange());
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if (FromResult.isInvalid())
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return true;
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From = FromResult.takeAs<Expr>();
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@ -1812,7 +1815,8 @@ Sema::PerformImplicitConversion(Expr *&From, QualType ToType,
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ToType, SCS.CopyConstructor,
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MultiExprArg(*this, &From, 1),
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/*ZeroInit*/ false,
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CXXConstructExpr::CK_Complete);
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CXXConstructExpr::CK_Complete,
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SourceRange());
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if (FromResult.isInvalid())
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return true;
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@ -3444,7 +3444,8 @@ static ExprResult CopyObject(Sema &S,
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CurInit = S.BuildCXXConstructExpr(Loc, T, Constructor, Elidable,
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move_arg(ConstructorArgs),
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/*ZeroInit*/ false,
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CXXConstructExpr::CK_Complete);
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CXXConstructExpr::CK_Complete,
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SourceRange());
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// If we're supposed to bind temporaries, do so.
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if (!CurInit.isInvalid() && shouldBindAsTemporary(Entity))
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@ -3707,7 +3708,8 @@ InitializationSequence::Perform(Sema &S,
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CurInit = S.BuildCXXConstructExpr(Loc, Step->Type, Constructor,
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move_arg(ConstructorArgs),
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/*ZeroInit*/ false,
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CXXConstructExpr::CK_Complete);
|
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CXXConstructExpr::CK_Complete,
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SourceRange());
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if (CurInit.isInvalid())
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return ExprError();
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@ -3870,7 +3872,7 @@ InitializationSequence::Perform(Sema &S,
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TSInfo,
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Exprs,
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NumExprs,
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Kind.getParenRange().getEnd(),
|
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Kind.getParenRange(),
|
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ConstructorInitRequiresZeroInit));
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} else {
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CXXConstructExpr::ConstructionKind ConstructKind =
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@ -3882,6 +3884,11 @@ InitializationSequence::Perform(Sema &S,
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CXXConstructExpr::CK_NonVirtualBase;
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}
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// Only get the parenthesis range if it is a direct construction.
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SourceRange parenRange =
|
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Kind.getKind() == InitializationKind::IK_Direct ?
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Kind.getParenRange() : SourceRange();
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// If the entity allows NRVO, mark the construction as elidable
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// unconditionally.
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if (Entity.allowsNRVO())
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@ -3889,13 +3896,15 @@ InitializationSequence::Perform(Sema &S,
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Constructor, /*Elidable=*/true,
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move_arg(ConstructorArgs),
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ConstructorInitRequiresZeroInit,
|
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ConstructKind);
|
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ConstructKind,
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parenRange);
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else
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CurInit = S.BuildCXXConstructExpr(Loc, Entity.getType(),
|
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Constructor,
|
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move_arg(ConstructorArgs),
|
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ConstructorInitRequiresZeroInit,
|
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ConstructKind);
|
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ConstructKind,
|
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parenRange);
|
||||
}
|
||||
if (CurInit.isInvalid())
|
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return ExprError();
|
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|
|
|
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|
|
@ -1688,7 +1688,8 @@ public:
|
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bool IsElidable,
|
||||
MultiExprArg Args,
|
||||
bool RequiresZeroInit,
|
||||
CXXConstructExpr::ConstructionKind ConstructKind) {
|
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CXXConstructExpr::ConstructionKind ConstructKind,
|
||||
SourceRange ParenRange) {
|
||||
ASTOwningVector<Expr*> ConvertedArgs(SemaRef);
|
||||
if (getSema().CompleteConstructorCall(Constructor, move(Args), Loc,
|
||||
ConvertedArgs))
|
||||
|
|
@ -1696,7 +1697,8 @@ public:
|
|||
|
||||
return getSema().BuildCXXConstructExpr(Loc, T, Constructor, IsElidable,
|
||||
move_arg(ConvertedArgs),
|
||||
RequiresZeroInit, ConstructKind);
|
||||
RequiresZeroInit, ConstructKind,
|
||||
ParenRange);
|
||||
}
|
||||
|
||||
/// \brief Build a new object-construction expression.
|
||||
|
|
@ -5725,7 +5727,8 @@ TreeTransform<Derived>::TransformCXXConstructExpr(CXXConstructExpr *E) {
|
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Constructor, E->isElidable(),
|
||||
move_arg(Args),
|
||||
E->requiresZeroInitialization(),
|
||||
E->getConstructionKind());
|
||||
E->getConstructionKind(),
|
||||
E->getParenRange());
|
||||
}
|
||||
|
||||
/// \brief Transform a C++ temporary-binding expression.
|
||||
|
|
|
|||
|
|
@ -1001,12 +1001,12 @@ void ASTStmtReader::VisitCXXConstructExpr(CXXConstructExpr *E) {
|
|||
E->setElidable(Record[Idx++]);
|
||||
E->setRequiresZeroInitialization(Record[Idx++]);
|
||||
E->setConstructionKind((CXXConstructExpr::ConstructionKind)Record[Idx++]);
|
||||
E->ParenRange = ReadSourceRange(Record, Idx);
|
||||
}
|
||||
|
||||
void ASTStmtReader::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
|
||||
VisitCXXConstructExpr(E);
|
||||
E->Type = GetTypeSourceInfo(Record, Idx);
|
||||
E->RParenLoc = ReadSourceLocation(Record, Idx);
|
||||
}
|
||||
|
||||
void ASTStmtReader::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
|
||||
|
|
@ -1122,8 +1122,10 @@ void ASTStmtReader::VisitCXXNewExpr(CXXNewExpr *E) {
|
|||
TypeIdParens.setBegin(ReadSourceLocation(Record, Idx));
|
||||
TypeIdParens.setEnd(ReadSourceLocation(Record, Idx));
|
||||
E->TypeIdParens = TypeIdParens;
|
||||
E->setStartLoc(ReadSourceLocation(Record, Idx));
|
||||
E->setEndLoc(ReadSourceLocation(Record, Idx));
|
||||
E->StartLoc = ReadSourceLocation(Record, Idx);
|
||||
E->EndLoc = ReadSourceLocation(Record, Idx);
|
||||
E->ConstructorLParen = ReadSourceLocation(Record, Idx);
|
||||
E->ConstructorRParen = ReadSourceLocation(Record, Idx);
|
||||
|
||||
E->AllocateArgsArray(*Reader.getContext(), isArray, NumPlacementArgs,
|
||||
NumCtorArgs);
|
||||
|
|
|
|||
|
|
@ -978,13 +978,13 @@ void ASTStmtWriter::VisitCXXConstructExpr(CXXConstructExpr *E) {
|
|||
Record.push_back(E->isElidable());
|
||||
Record.push_back(E->requiresZeroInitialization());
|
||||
Record.push_back(E->getConstructionKind()); // FIXME: stable encoding
|
||||
Writer.AddSourceRange(E->getParenRange(), Record);
|
||||
Code = serialization::EXPR_CXX_CONSTRUCT;
|
||||
}
|
||||
|
||||
void ASTStmtWriter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
|
||||
VisitCXXConstructExpr(E);
|
||||
Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
|
||||
Writer.AddSourceLocation(E->getRParenLoc(), Record);
|
||||
Code = serialization::EXPR_CXX_TEMPORARY_OBJECT;
|
||||
}
|
||||
|
||||
|
|
@ -1113,6 +1113,8 @@ void ASTStmtWriter::VisitCXXNewExpr(CXXNewExpr *E) {
|
|||
Writer.AddSourceRange(E->getTypeIdParens(), Record);
|
||||
Writer.AddSourceLocation(E->getStartLoc(), Record);
|
||||
Writer.AddSourceLocation(E->getEndLoc(), Record);
|
||||
Writer.AddSourceLocation(E->getConstructorLParen(), Record);
|
||||
Writer.AddSourceLocation(E->getConstructorRParen(), Record);
|
||||
for (CXXNewExpr::arg_iterator I = E->raw_arg_begin(), e = E->raw_arg_end();
|
||||
I != e; ++I)
|
||||
Writer.AddStmt(*I);
|
||||
|
|
|
|||
|
|
@ -215,7 +215,7 @@ void considered_harmful(int x) {
|
|||
// CHECK: load-stmts.cpp:104:5: MemberRef=member:100:7 Extent=[104:5 - 104:11]
|
||||
// CHECK: load-stmts.cpp:104:12: DeclRefExpr=x:103:22 Extent=[104:12 - 104:13]
|
||||
// CHECK: load-stmts.cpp:104:16: TypeRef=struct Base:94:8 Extent=[104:16 - 104:2
|
||||
// CHECK: load-stmts.cpp:104:16: CallExpr= Extent=[104:16 - 104:22]
|
||||
// CHECK: load-stmts.cpp:104:16: CallExpr= Extent=[104:16 - 104:23]
|
||||
// CHECK: load-stmts.cpp:104:21: DeclRefExpr=x:103:22 Extent=[104:21 - 104:22]
|
||||
// CHECK: load-stmts.cpp:107:6: FunctionDecl=considered_harmful:107:6 (Definition)
|
||||
// CHECK: load-stmts.cpp:108:2: LabelStmt=start_over Extent=[108:2 - 109:28]
|
||||
|
|
|
|||
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