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authorrdivacky <rdivacky@FreeBSD.org>2010-02-16 09:31:36 +0000
committerrdivacky <rdivacky@FreeBSD.org>2010-02-16 09:31:36 +0000
commitfd035e6496665b1f1197868e21cb0a4594e8db6e (patch)
tree53010172e19c77ea447bcd89e117cda052ab52e0 /lib/Sema/SemaExprCXX.cpp
parent2fce988e86bc01829142e4362d4eff1af0925147 (diff)
downloadFreeBSD-src-fd035e6496665b1f1197868e21cb0a4594e8db6e.zip
FreeBSD-src-fd035e6496665b1f1197868e21cb0a4594e8db6e.tar.gz
Update clang to r96341.
Diffstat (limited to 'lib/Sema/SemaExprCXX.cpp')
-rw-r--r--lib/Sema/SemaExprCXX.cpp127
1 files changed, 67 insertions, 60 deletions
diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index b004fc3..9eeda54 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -72,18 +72,17 @@ Sema::ActOnCXXTypeid(SourceLocation OpLoc, SourceLocation LParenLoc,
if (const RecordType *RecordT = T->getAs<RecordType>()) {
CXXRecordDecl *RecordD = cast<CXXRecordDecl>(RecordT->getDecl());
// C++ [expr.typeid]p3:
+ // [...] If the type of the expression is a class type, the class
+ // shall be completely-defined.
+ if (RequireCompleteType(OpLoc, T, diag::err_incomplete_typeid))
+ return ExprError();
+
+ // C++ [expr.typeid]p3:
// When typeid is applied to an expression other than an lvalue of a
// polymorphic class type [...] [the] expression is an unevaluated
// operand. [...]
if (RecordD->isPolymorphic() && E->isLvalue(Context) == Expr::LV_Valid)
isUnevaluatedOperand = false;
- else {
- // C++ [expr.typeid]p3:
- // [...] If the type of the expression is a class type, the class
- // shall be completely-defined.
- if (RequireCompleteType(OpLoc, T, diag::err_incomplete_typeid))
- return ExprError();
- }
}
// C++ [expr.typeid]p4:
@@ -195,7 +194,9 @@ Sema::ActOnCXXTypeConstructExpr(SourceRange TypeRange, TypeTy *TypeRep,
MultiExprArg exprs,
SourceLocation *CommaLocs,
SourceLocation RParenLoc) {
- assert(TypeRep && "Missing type!");
+ if (!TypeRep)
+ return ExprError();
+
TypeSourceInfo *TInfo;
QualType Ty = GetTypeFromParser(TypeRep, &TInfo);
if (!TInfo)
@@ -263,29 +264,18 @@ Sema::ActOnCXXTypeConstructExpr(SourceRange TypeRange, TypeTy *TypeRep,
if (NumExprs > 1 || !Record->hasTrivialConstructor() ||
!Record->hasTrivialDestructor()) {
- ASTOwningVector<&ActionBase::DeleteExpr> ConstructorArgs(*this);
-
- CXXConstructorDecl *Constructor
- = PerformInitializationByConstructor(Ty, move(exprs),
- TypeRange.getBegin(),
- SourceRange(TypeRange.getBegin(),
- RParenLoc),
- DeclarationName(),
- InitializationKind::CreateDirect(TypeRange.getBegin(),
- LParenLoc,
- RParenLoc),
- ConstructorArgs);
-
- if (!Constructor)
- return ExprError();
-
- OwningExprResult Result =
- BuildCXXTemporaryObjectExpr(Constructor, Ty, TyBeginLoc,
- move_arg(ConstructorArgs), RParenLoc);
- if (Result.isInvalid())
- return ExprError();
-
- return MaybeBindToTemporary(Result.takeAs<Expr>());
+ InitializedEntity Entity = InitializedEntity::InitializeTemporary(Ty);
+ InitializationKind Kind
+ = NumExprs ? InitializationKind::CreateDirect(TypeRange.getBegin(),
+ LParenLoc, RParenLoc)
+ : InitializationKind::CreateValue(TypeRange.getBegin(),
+ LParenLoc, RParenLoc);
+ InitializationSequence InitSeq(*this, Entity, Kind, Exprs, NumExprs);
+ OwningExprResult Result = InitSeq.Perform(*this, Entity, Kind,
+ move(exprs));
+
+ // FIXME: Improve AST representation?
+ return move(Result);
}
// Fall through to value-initialize an object of class type that
@@ -530,10 +520,13 @@ Sema::BuildCXXNew(SourceLocation StartLoc, bool UseGlobal,
PlacementArgs.release();
ConstructorArgs.release();
ArraySizeE.release();
- return Owned(new (Context) CXXNewExpr(UseGlobal, OperatorNew, PlaceArgs,
- NumPlaceArgs, ParenTypeId, ArraySize, Constructor, Init,
- ConsArgs, NumConsArgs, OperatorDelete, ResultType,
- StartLoc, Init ? ConstructorRParen : SourceLocation()));
+ return Owned(new (Context) CXXNewExpr(Context, UseGlobal, OperatorNew,
+ PlaceArgs, NumPlaceArgs, ParenTypeId,
+ ArraySize, Constructor, Init,
+ ConsArgs, NumConsArgs, OperatorDelete,
+ ResultType, StartLoc,
+ Init ? ConstructorRParen :
+ SourceLocation()));
}
/// CheckAllocatedType - Checks that a type is suitable as the allocated type
@@ -636,19 +629,24 @@ bool Sema::FindAllocationOverload(SourceLocation StartLoc, SourceRange Range,
// FIXME: handle ambiguity
- OverloadCandidateSet Candidates;
+ OverloadCandidateSet Candidates(StartLoc);
for (LookupResult::iterator Alloc = R.begin(), AllocEnd = R.end();
Alloc != AllocEnd; ++Alloc) {
// Even member operator new/delete are implicitly treated as
// static, so don't use AddMemberCandidate.
- if (FunctionDecl *Fn =
- dyn_cast<FunctionDecl>((*Alloc)->getUnderlyingDecl())) {
- AddOverloadCandidate(Fn, Args, NumArgs, Candidates,
- /*SuppressUserConversions=*/false);
+
+ if (FunctionTemplateDecl *FnTemplate =
+ dyn_cast<FunctionTemplateDecl>((*Alloc)->getUnderlyingDecl())) {
+ AddTemplateOverloadCandidate(FnTemplate, Alloc.getAccess(),
+ /*ExplicitTemplateArgs=*/0, Args, NumArgs,
+ Candidates,
+ /*SuppressUserConversions=*/false);
continue;
- }
-
- // FIXME: Handle function templates
+ }
+
+ FunctionDecl *Fn = cast<FunctionDecl>((*Alloc)->getUnderlyingDecl());
+ AddOverloadCandidate(Fn, Alloc.getAccess(), Args, NumArgs, Candidates,
+ /*SuppressUserConversions=*/false);
}
// Do the resolution.
@@ -779,12 +777,16 @@ void Sema::DeclareGlobalAllocationFunction(DeclarationName Name,
DeclContext::lookup_iterator Alloc, AllocEnd;
for (llvm::tie(Alloc, AllocEnd) = GlobalCtx->lookup(Name);
Alloc != AllocEnd; ++Alloc) {
- // FIXME: Do we need to check for default arguments here?
- FunctionDecl *Func = cast<FunctionDecl>(*Alloc);
- if (Func->getNumParams() == 1 &&
+ // Only look at non-template functions, as it is the predefined,
+ // non-templated allocation function we are trying to declare here.
+ if (FunctionDecl *Func = dyn_cast<FunctionDecl>(*Alloc)) {
+ QualType InitialParamType =
Context.getCanonicalType(
- Func->getParamDecl(0)->getType().getUnqualifiedType()) == Argument)
- return;
+ Func->getParamDecl(0)->getType().getUnqualifiedType());
+ // FIXME: Do we need to check for default arguments here?
+ if (Func->getNumParams() == 1 && InitialParamType == Argument)
+ return;
+ }
}
}
@@ -812,7 +814,7 @@ void Sema::DeclareGlobalAllocationFunction(DeclarationName Name,
ParmVarDecl *Param = ParmVarDecl::Create(Context, Alloc, SourceLocation(),
0, Argument, /*TInfo=*/0,
VarDecl::None, 0);
- Alloc->setParams(Context, &Param, 1);
+ Alloc->setParams(&Param, 1);
// FIXME: Also add this declaration to the IdentifierResolver, but
// make sure it is at the end of the chain to coincide with the
@@ -1487,9 +1489,9 @@ QualType Sema::CheckPointerToMemberOperands(
static QualType TargetType(const ImplicitConversionSequence &ICS) {
switch (ICS.getKind()) {
case ImplicitConversionSequence::StandardConversion:
- return ICS.Standard.getToType();
+ return ICS.Standard.getToType(2);
case ImplicitConversionSequence::UserDefinedConversion:
- return ICS.UserDefined.After.getToType();
+ return ICS.UserDefined.After.getToType(2);
case ImplicitConversionSequence::AmbiguousConversion:
return ICS.Ambiguous.getToType();
case ImplicitConversionSequence::EllipsisConversion:
@@ -1587,7 +1589,7 @@ static bool TryClassUnification(Sema &Self, Expr *From, Expr *To,
static bool FindConditionalOverload(Sema &Self, Expr *&LHS, Expr *&RHS,
SourceLocation Loc) {
Expr *Args[2] = { LHS, RHS };
- OverloadCandidateSet CandidateSet;
+ OverloadCandidateSet CandidateSet(Loc);
Self.AddBuiltinOperatorCandidates(OO_Conditional, Loc, Args, 2, CandidateSet);
OverloadCandidateSet::iterator Best;
@@ -1689,8 +1691,8 @@ QualType Sema::CXXCheckConditionalOperands(Expr *&Cond, Expr *&LHS, Expr *&RHS,
if (LVoid || RVoid) {
// ... then the [l2r] conversions are performed on the second and third
// operands ...
- DefaultFunctionArrayConversion(LHS);
- DefaultFunctionArrayConversion(RHS);
+ DefaultFunctionArrayLvalueConversion(LHS);
+ DefaultFunctionArrayLvalueConversion(RHS);
LTy = LHS->getType();
RTy = RHS->getType();
@@ -1776,8 +1778,8 @@ QualType Sema::CXXCheckConditionalOperands(Expr *&Cond, Expr *&LHS, Expr *&RHS,
// C++0x 5.16p6
// LValue-to-rvalue, array-to-pointer, and function-to-pointer standard
// conversions are performed on the second and third operands.
- DefaultFunctionArrayConversion(LHS);
- DefaultFunctionArrayConversion(RHS);
+ DefaultFunctionArrayLvalueConversion(LHS);
+ DefaultFunctionArrayLvalueConversion(RHS);
LTy = LHS->getType();
RTy = RHS->getType();
@@ -1987,10 +1989,8 @@ Sema::OwningExprResult Sema::MaybeBindToTemporary(Expr *E) {
if (!RT)
return Owned(E);
- CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl());
- if (RD->hasTrivialDestructor())
- return Owned(E);
-
+ // If this is the result of a call expression, our source might
+ // actually be a reference, in which case we shouldn't bind.
if (CallExpr *CE = dyn_cast<CallExpr>(E)) {
QualType Ty = CE->getCallee()->getType();
if (const PointerType *PT = Ty->getAs<PointerType>())
@@ -2000,6 +2000,13 @@ Sema::OwningExprResult Sema::MaybeBindToTemporary(Expr *E) {
if (FTy->getResultType()->isReferenceType())
return Owned(E);
}
+
+ // That should be enough to guarantee that this type is complete.
+ // If it has a trivial destructor, we can avoid the extra copy.
+ CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl());
+ if (RD->hasTrivialDestructor())
+ return Owned(E);
+
CXXTemporary *Temp = CXXTemporary::Create(Context,
RD->getDestructor(Context));
ExprTemporaries.push_back(Temp);
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