aboutsummaryrefslogtreecommitdiff
path: root/lib/Sema/SemaInit.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Sema/SemaInit.cpp')
-rw-r--r--lib/Sema/SemaInit.cpp372
1 files changed, 210 insertions, 162 deletions
diff --git a/lib/Sema/SemaInit.cpp b/lib/Sema/SemaInit.cpp
index a65b41fd1cb6..62ab1e645089 100644
--- a/lib/Sema/SemaInit.cpp
+++ b/lib/Sema/SemaInit.cpp
@@ -92,8 +92,7 @@ static void CheckStringInit(Expr *Str, QualType &DeclT, const ArrayType *AT,
if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) {
// C99 6.7.8p14. We have an array of character type with unknown size
// being initialized to a string literal.
- llvm::APSInt ConstVal(32);
- ConstVal = StrLength;
+ llvm::APInt ConstVal(32, StrLength);
// Return a new array type (C99 6.7.8p22).
DeclT = S.Context.getConstantArrayType(IAT->getElementType(),
ConstVal,
@@ -687,22 +686,21 @@ void InitListChecker::CheckListElementTypes(const InitializedEntity &Entity,
} else if (DeclType->isVectorType()) {
CheckVectorType(Entity, IList, DeclType, Index,
StructuredList, StructuredIndex);
- } else if (DeclType->isAggregateType()) {
- if (DeclType->isRecordType()) {
- RecordDecl *RD = DeclType->getAs<RecordType>()->getDecl();
- CheckStructUnionTypes(Entity, IList, DeclType, RD->field_begin(),
- SubobjectIsDesignatorContext, Index,
- StructuredList, StructuredIndex,
- TopLevelObject);
- } else if (DeclType->isArrayType()) {
- llvm::APSInt Zero(
- SemaRef.Context.getTypeSize(SemaRef.Context.getSizeType()),
- false);
- CheckArrayType(Entity, IList, DeclType, Zero,
- SubobjectIsDesignatorContext, Index,
- StructuredList, StructuredIndex);
- } else
- llvm_unreachable("Aggregate that isn't a structure or array?!");
+ } else if (DeclType->isRecordType()) {
+ assert(DeclType->isAggregateType() &&
+ "non-aggregate records should be handed in CheckSubElementType");
+ RecordDecl *RD = DeclType->getAs<RecordType>()->getDecl();
+ CheckStructUnionTypes(Entity, IList, DeclType, RD->field_begin(),
+ SubobjectIsDesignatorContext, Index,
+ StructuredList, StructuredIndex,
+ TopLevelObject);
+ } else if (DeclType->isArrayType()) {
+ llvm::APSInt Zero(
+ SemaRef.Context.getTypeSize(SemaRef.Context.getSizeType()),
+ false);
+ CheckArrayType(Entity, IList, DeclType, Zero,
+ SubobjectIsDesignatorContext, Index,
+ StructuredList, StructuredIndex);
} else if (DeclType->isVoidType() || DeclType->isFunctionType()) {
// This type is invalid, issue a diagnostic.
++Index;
@@ -710,19 +708,6 @@ void InitListChecker::CheckListElementTypes(const InitializedEntity &Entity,
SemaRef.Diag(IList->getLocStart(), diag::err_illegal_initializer_type)
<< DeclType;
hadError = true;
- } else if (DeclType->isRecordType()) {
- // C++ [dcl.init]p14:
- // [...] If the class is an aggregate (8.5.1), and the initializer
- // is a brace-enclosed list, see 8.5.1.
- //
- // Note: 8.5.1 is handled below; here, we diagnose the case where
- // we have an initializer list and a destination type that is not
- // an aggregate.
- // FIXME: In C++0x, this is yet another form of initialization.
- if (!VerifyOnly)
- SemaRef.Diag(IList->getLocStart(), diag::err_init_non_aggr_init_list)
- << DeclType << IList->getSourceRange();
- hadError = true;
} else if (DeclType->isReferenceType()) {
CheckReferenceType(Entity, IList, DeclType, Index,
StructuredList, StructuredIndex);
@@ -747,18 +732,25 @@ void InitListChecker::CheckSubElementType(const InitializedEntity &Entity,
unsigned &StructuredIndex) {
Expr *expr = IList->getInit(Index);
if (InitListExpr *SubInitList = dyn_cast<InitListExpr>(expr)) {
- unsigned newIndex = 0;
- unsigned newStructuredIndex = 0;
- InitListExpr *newStructuredList
- = getStructuredSubobjectInit(IList, Index, ElemType,
- StructuredList, StructuredIndex,
- SubInitList->getSourceRange());
- CheckExplicitInitList(Entity, SubInitList, ElemType, newIndex,
- newStructuredList, newStructuredIndex);
- ++StructuredIndex;
- ++Index;
- return;
- } else if (ElemType->isScalarType()) {
+ if (!ElemType->isRecordType() || ElemType->isAggregateType()) {
+ unsigned newIndex = 0;
+ unsigned newStructuredIndex = 0;
+ InitListExpr *newStructuredList
+ = getStructuredSubobjectInit(IList, Index, ElemType,
+ StructuredList, StructuredIndex,
+ SubInitList->getSourceRange());
+ CheckExplicitInitList(Entity, SubInitList, ElemType, newIndex,
+ newStructuredList, newStructuredIndex);
+ ++StructuredIndex;
+ ++Index;
+ return;
+ }
+ assert(SemaRef.getLangOpts().CPlusPlus &&
+ "non-aggregate records are only possible in C++");
+ // C++ initialization is handled later.
+ }
+
+ if (ElemType->isScalarType()) {
return CheckScalarType(Entity, IList, ElemType, Index,
StructuredList, StructuredIndex);
} else if (ElemType->isReferenceType()) {
@@ -1859,7 +1851,7 @@ InitListChecker::CheckDesignatedInitializer(const InitializedEntity &Entity,
}
} else {
// Recurse to check later designated subobjects.
- QualType FieldType = (*Field)->getType();
+ QualType FieldType = Field->getType();
unsigned newStructuredIndex = FieldIndex;
InitializedEntity MemberEntity =
@@ -2708,84 +2700,39 @@ static void MaybeProduceObjCObject(Sema &S,
}
}
-/// \brief When initializing from init list via constructor, deal with the
-/// empty init list and std::initializer_list special cases.
+/// \brief When initializing from init list via constructor, handle
+/// initialization of an object of type std::initializer_list<T>.
///
-/// \return True if this was a special case, false otherwise.
-static bool TryListConstructionSpecialCases(Sema &S,
- InitListExpr *List,
- CXXRecordDecl *DestRecordDecl,
- QualType DestType,
- InitializationSequence &Sequence) {
- // C++11 [dcl.init.list]p3:
- // List-initialization of an object or reference of type T is defined as
- // follows:
- // - If T is an aggregate, aggregate initialization is performed.
- if (DestType->isAggregateType())
+/// \return true if we have handled initialization of an object of type
+/// std::initializer_list<T>, false otherwise.
+static bool TryInitializerListConstruction(Sema &S,
+ InitListExpr *List,
+ QualType DestType,
+ InitializationSequence &Sequence) {
+ QualType E;
+ if (!S.isStdInitializerList(DestType, &E))
return false;
- // - Otherwise, if the initializer list has no elements and T is a class
- // type with a default constructor, the object is value-initialized.
- if (List->getNumInits() == 0) {
- if (CXXConstructorDecl *DefaultConstructor =
- S.LookupDefaultConstructor(DestRecordDecl)) {
- if (DefaultConstructor->isDeleted() ||
- S.isFunctionConsideredUnavailable(DefaultConstructor)) {
- // Fake an overload resolution failure.
- OverloadCandidateSet &CandidateSet = Sequence.getFailedCandidateSet();
- DeclAccessPair FoundDecl = DeclAccessPair::make(DefaultConstructor,
- DefaultConstructor->getAccess());
- if (FunctionTemplateDecl *ConstructorTmpl =
- dyn_cast<FunctionTemplateDecl>(DefaultConstructor))
- S.AddTemplateOverloadCandidate(ConstructorTmpl, FoundDecl,
- /*ExplicitArgs*/ 0,
- ArrayRef<Expr*>(), CandidateSet,
- /*SuppressUserConversions*/ false);
- else
- S.AddOverloadCandidate(DefaultConstructor, FoundDecl,
- ArrayRef<Expr*>(), CandidateSet,
- /*SuppressUserConversions*/ false);
- Sequence.SetOverloadFailure(
- InitializationSequence::FK_ListConstructorOverloadFailed,
- OR_Deleted);
- } else
- Sequence.AddConstructorInitializationStep(DefaultConstructor,
- DefaultConstructor->getAccess(),
- DestType,
- /*MultipleCandidates=*/false,
- /*FromInitList=*/true,
- /*AsInitList=*/false);
+ // Check that each individual element can be copy-constructed. But since we
+ // have no place to store further information, we'll recalculate everything
+ // later.
+ InitializedEntity HiddenArray = InitializedEntity::InitializeTemporary(
+ S.Context.getConstantArrayType(E,
+ llvm::APInt(S.Context.getTypeSize(S.Context.getSizeType()),
+ List->getNumInits()),
+ ArrayType::Normal, 0));
+ InitializedEntity Element = InitializedEntity::InitializeElement(S.Context,
+ 0, HiddenArray);
+ for (unsigned i = 0, n = List->getNumInits(); i < n; ++i) {
+ Element.setElementIndex(i);
+ if (!S.CanPerformCopyInitialization(Element, List->getInit(i))) {
+ Sequence.SetFailed(
+ InitializationSequence::FK_InitListElementCopyFailure);
return true;
}
}
-
- // - Otherwise, if T is a specialization of std::initializer_list, [...]
- QualType E;
- if (S.isStdInitializerList(DestType, &E)) {
- // Check that each individual element can be copy-constructed. But since we
- // have no place to store further information, we'll recalculate everything
- // later.
- InitializedEntity HiddenArray = InitializedEntity::InitializeTemporary(
- S.Context.getConstantArrayType(E,
- llvm::APInt(S.Context.getTypeSize(S.Context.getSizeType()),
- List->getNumInits()),
- ArrayType::Normal, 0));
- InitializedEntity Element = InitializedEntity::InitializeElement(S.Context,
- 0, HiddenArray);
- for (unsigned i = 0, n = List->getNumInits(); i < n; ++i) {
- Element.setElementIndex(i);
- if (!S.CanPerformCopyInitialization(Element, List->getInit(i))) {
- Sequence.SetFailed(
- InitializationSequence::FK_InitListElementCopyFailure);
- return true;
- }
- }
- Sequence.AddStdInitializerListConstructionStep(DestType);
- return true;
- }
-
- // Not a special case.
- return false;
+ Sequence.AddStdInitializerListConstructionStep(DestType);
+ return true;
}
static OverloadingResult
@@ -2886,11 +2833,6 @@ static void TryConstructorInitialization(Sema &S,
CXXRecordDecl *DestRecordDecl
= cast<CXXRecordDecl>(DestRecordType->getDecl());
- if (InitListSyntax &&
- TryListConstructionSpecialCases(S, cast<InitListExpr>(Args[0]),
- DestRecordDecl, DestType, Sequence))
- return;
-
// Build the candidate set directly in the initialization sequence
// structure, so that it will persist if we fail.
OverloadCandidateSet &CandidateSet = Sequence.getFailedCandidateSet();
@@ -2917,15 +2859,21 @@ static void TryConstructorInitialization(Sema &S,
// constructors of the class T and the argument list consists of the
// initializer list as a single argument.
if (InitListSyntax) {
+ InitListExpr *ILE = cast<InitListExpr>(Args[0]);
AsInitializerList = true;
- Result = ResolveConstructorOverload(S, Kind.getLocation(), Args, NumArgs,
- CandidateSet, ConStart, ConEnd, Best,
- CopyInitialization, AllowExplicit,
- /*OnlyListConstructor=*/true,
- InitListSyntax);
+
+ // If the initializer list has no elements and T has a default constructor,
+ // the first phase is omitted.
+ if (ILE->getNumInits() != 0 ||
+ (!DestRecordDecl->hasDeclaredDefaultConstructor() &&
+ !DestRecordDecl->needsImplicitDefaultConstructor()))
+ Result = ResolveConstructorOverload(S, Kind.getLocation(), Args, NumArgs,
+ CandidateSet, ConStart, ConEnd, Best,
+ CopyInitialization, AllowExplicit,
+ /*OnlyListConstructor=*/true,
+ InitListSyntax);
// Time to unwrap the init list.
- InitListExpr *ILE = cast<InitListExpr>(Args[0]);
Args = ILE->getInits();
NumArgs = ILE->getNumInits();
}
@@ -2933,7 +2881,7 @@ static void TryConstructorInitialization(Sema &S,
// C++11 [over.match.list]p1:
// - If no viable initializer-list constructor is found, overload resolution
// is performed again, where the candidate functions are all the
- // constructors of the class T nad the argument list consists of the
+ // constructors of the class T and the argument list consists of the
// elements of the initializer list.
if (Result == OR_No_Viable_Function) {
AsInitializerList = false;
@@ -2951,13 +2899,13 @@ static void TryConstructorInitialization(Sema &S,
return;
}
- // C++0x [dcl.init]p6:
+ // C++11 [dcl.init]p6:
// If a program calls for the default initialization of an object
// of a const-qualified type T, T shall be a class type with a
// user-provided default constructor.
if (Kind.getKind() == InitializationKind::IK_Default &&
Entity.getType().isConstQualified() &&
- cast<CXXConstructorDecl>(Best->Function)->isImplicit()) {
+ !cast<CXXConstructorDecl>(Best->Function)->isUserProvided()) {
Sequence.SetFailed(InitializationSequence::FK_DefaultInitOfConst);
return;
}
@@ -3018,6 +2966,12 @@ static void TryReferenceInitializationCore(Sema &S,
Qualifiers T2Quals,
InitializationSequence &Sequence);
+static void TryValueInitialization(Sema &S,
+ const InitializedEntity &Entity,
+ const InitializationKind &Kind,
+ InitializationSequence &Sequence,
+ InitListExpr *InitList = 0);
+
static void TryListInitialization(Sema &S,
const InitializedEntity &Entity,
const InitializationKind &Kind,
@@ -3108,19 +3062,36 @@ static void TryListInitialization(Sema &S,
return;
}
if (DestType->isRecordType()) {
- if (S.RequireCompleteType(InitList->getLocStart(), DestType, S.PDiag())) {
+ if (S.RequireCompleteType(InitList->getLocStart(), DestType, 0)) {
Sequence.setIncompleteTypeFailure(DestType);
return;
}
+ // C++11 [dcl.init.list]p3:
+ // - If T is an aggregate, aggregate initialization is performed.
if (!DestType->isAggregateType()) {
if (S.getLangOpts().CPlusPlus0x) {
+ // - Otherwise, if the initializer list has no elements and T is a
+ // class type with a default constructor, the object is
+ // value-initialized.
+ if (InitList->getNumInits() == 0) {
+ CXXRecordDecl *RD = DestType->getAsCXXRecordDecl();
+ if (RD->hasDeclaredDefaultConstructor() ||
+ RD->needsImplicitDefaultConstructor()) {
+ TryValueInitialization(S, Entity, Kind, Sequence, InitList);
+ return;
+ }
+ }
+
+ // - Otherwise, if T is a specialization of std::initializer_list<E>,
+ // an initializer_list object constructed [...]
+ if (TryInitializerListConstruction(S, InitList, DestType, Sequence))
+ return;
+
+ // - Otherwise, if T is a class type, constructors are considered.
Expr *Arg = InitList;
- // A direct-initializer is not list-syntax, i.e. there's no special
- // treatment of "A a({1, 2});".
- TryConstructorInitialization(S, Entity, Kind, &Arg, 1, DestType,
- Sequence,
- Kind.getKind() != InitializationKind::IK_Direct);
+ TryConstructorInitialization(S, Entity, Kind, &Arg, 1, DestType,
+ Sequence, /*InitListSyntax*/true);
} else
Sequence.SetFailed(
InitializationSequence::FK_InitListBadDestinationType);
@@ -3605,7 +3576,11 @@ static void TryStringLiteralInitialization(Sema &S,
static void TryValueInitialization(Sema &S,
const InitializedEntity &Entity,
const InitializationKind &Kind,
- InitializationSequence &Sequence) {
+ InitializationSequence &Sequence,
+ InitListExpr *InitList) {
+ assert((!InitList || InitList->getNumInits() == 0) &&
+ "Shouldn't use value-init for non-empty init lists");
+
// C++98 [dcl.init]p5, C++11 [dcl.init]p7:
//
// To value-initialize an object of type T means:
@@ -3616,17 +3591,15 @@ static void TryValueInitialization(Sema &S,
if (const RecordType *RT = T->getAs<RecordType>()) {
if (CXXRecordDecl *ClassDecl = dyn_cast<CXXRecordDecl>(RT->getDecl())) {
- // C++98:
- // -- if T is a class type (clause 9) with a user-declared
- // constructor (12.1), then the default constructor for T is
- // called (and the initialization is ill-formed if T has no
- // accessible default constructor);
+ bool NeedZeroInitialization = true;
if (!S.getLangOpts().CPlusPlus0x) {
+ // C++98:
+ // -- if T is a class type (clause 9) with a user-declared constructor
+ // (12.1), then the default constructor for T is called (and the
+ // initialization is ill-formed if T has no accessible default
+ // constructor);
if (ClassDecl->hasUserDeclaredConstructor())
- // FIXME: we really want to refer to a single subobject of the array,
- // but Entity doesn't have a way to capture that (yet).
- return TryConstructorInitialization(S, Entity, Kind, 0, 0,
- T, Sequence);
+ NeedZeroInitialization = false;
} else {
// C++11:
// -- if T is a class type (clause 9) with either no default constructor
@@ -3634,19 +3607,28 @@ static void TryValueInitialization(Sema &S,
// or deleted, then the object is default-initialized;
CXXConstructorDecl *CD = S.LookupDefaultConstructor(ClassDecl);
if (!CD || !CD->getCanonicalDecl()->isDefaulted() || CD->isDeleted())
- return TryConstructorInitialization(S, Entity, Kind, 0, 0,
- T, Sequence);
+ NeedZeroInitialization = false;
}
// -- if T is a (possibly cv-qualified) non-union class type without a
// user-provided or deleted default constructor, then the object is
// zero-initialized and, if T has a non-trivial default constructor,
// default-initialized;
- if ((ClassDecl->getTagKind() == TTK_Class ||
- ClassDecl->getTagKind() == TTK_Struct)) {
+ // FIXME: The 'non-union' here is a defect (not yet assigned an issue
+ // number). Update the quotation when the defect is resolved.
+ if (NeedZeroInitialization)
Sequence.AddZeroInitializationStep(Entity.getType());
- return TryConstructorInitialization(S, Entity, Kind, 0, 0, T, Sequence);
- }
+
+ // If this is list-value-initialization, pass the empty init list on when
+ // building the constructor call. This affects the semantics of a few
+ // things (such as whether an explicit default constructor can be called).
+ Expr *InitListAsExpr = InitList;
+ Expr **Args = InitList ? &InitListAsExpr : 0;
+ unsigned NumArgs = InitList ? 1 : 0;
+ bool InitListSyntax = InitList;
+
+ return TryConstructorInitialization(S, Entity, Kind, Args, NumArgs, T,
+ Sequence, InitListSyntax);
}
}
@@ -4101,8 +4083,8 @@ InitializationSequence::InitializationSequence(Sema &S,
AddArrayInitStep(DestType);
}
}
- // Note: as a GNU C++ extension, we allow initialization of a
- // class member from a parenthesized initializer list.
+ // Note: as a GNU C++ extension, we allow list-initialization of a
+ // class member of array type from a parenthesized initializer list.
else if (S.getLangOpts().CPlusPlus &&
Entity.getKind() == InitializedEntity::EK_Member &&
Initializer && isa<InitListExpr>(Initializer)) {
@@ -4409,7 +4391,7 @@ static SourceLocation getInitializationLoc(const InitializedEntity &Entity,
/// \param T The type of the temporary object, which must either be
/// the type of the initializer expression or a superclass thereof.
///
-/// \param Enter The entity being initialized.
+/// \param Entity The entity being initialized.
///
/// \param CurInit The initializer expression.
///
@@ -4452,7 +4434,7 @@ static ExprResult CopyObject(Sema &S,
SourceLocation Loc = getInitializationLoc(Entity, CurInit.get());
// Make sure that the type we are copying is complete.
- if (S.RequireCompleteType(Loc, T, S.PDiag(diag::err_temp_copy_incomplete)))
+ if (S.RequireCompleteType(Loc, T, diag::err_temp_copy_incomplete))
return move(CurInit);
// Perform overload resolution using the class's copy/move constructors.
@@ -4516,7 +4498,7 @@ static ExprResult CopyObject(Sema &S,
for (unsigned I = 1, N = Constructor->getNumParams(); I != N; ++I) {
ParmVarDecl *Parm = Constructor->getParamDecl(I);
if (S.RequireCompleteType(Loc, Parm->getType(),
- S.PDiag(diag::err_call_incomplete_argument)))
+ diag::err_call_incomplete_argument))
break;
// Build the default argument expression; we don't actually care
@@ -4748,6 +4730,43 @@ PerformConstructorInitialization(Sema &S,
return move(CurInit);
}
+/// Determine whether the specified InitializedEntity definitely has a lifetime
+/// longer than the current full-expression. Conservatively returns false if
+/// it's unclear.
+static bool
+InitializedEntityOutlivesFullExpression(const InitializedEntity &Entity) {
+ const InitializedEntity *Top = &Entity;
+ while (Top->getParent())
+ Top = Top->getParent();
+
+ switch (Top->getKind()) {
+ case InitializedEntity::EK_Variable:
+ case InitializedEntity::EK_Result:
+ case InitializedEntity::EK_Exception:
+ case InitializedEntity::EK_Member:
+ case InitializedEntity::EK_New:
+ case InitializedEntity::EK_Base:
+ case InitializedEntity::EK_Delegating:
+ return true;
+
+ case InitializedEntity::EK_ArrayElement:
+ case InitializedEntity::EK_VectorElement:
+ case InitializedEntity::EK_BlockElement:
+ case InitializedEntity::EK_ComplexElement:
+ // Could not determine what the full initialization is. Assume it might not
+ // outlive the full-expression.
+ return false;
+
+ case InitializedEntity::EK_Parameter:
+ case InitializedEntity::EK_Temporary:
+ case InitializedEntity::EK_LambdaCapture:
+ // The entity being initialized might not outlive the full-expression.
+ return false;
+ }
+
+ llvm_unreachable("unknown entity kind");
+}
+
ExprResult
InitializationSequence::Perform(Sema &S,
const InitializedEntity &Entity,
@@ -4816,6 +4835,29 @@ InitializationSequence::Perform(Sema &S,
if (Steps.empty())
return S.Owned((Expr *)0);
+ if (S.getLangOpts().CPlusPlus0x && Entity.getType()->isReferenceType() &&
+ Args.size() == 1 && isa<InitListExpr>(Args.get()[0]) &&
+ Entity.getKind() != InitializedEntity::EK_Parameter) {
+ // Produce a C++98 compatibility warning if we are initializing a reference
+ // from an initializer list. For parameters, we produce a better warning
+ // elsewhere.
+ Expr *Init = Args.get()[0];
+ S.Diag(Init->getLocStart(), diag::warn_cxx98_compat_reference_list_init)
+ << Init->getSourceRange();
+ }
+
+ // Diagnose cases where we initialize a pointer to an array temporary, and the
+ // pointer obviously outlives the temporary.
+ if (Args.size() == 1 && Args.get()[0]->getType()->isArrayType() &&
+ Entity.getType()->isPointerType() &&
+ InitializedEntityOutlivesFullExpression(Entity)) {
+ Expr *Init = Args.get()[0];
+ Expr::LValueClassification Kind = Init->ClassifyLValue(S.Context);
+ if (Kind == Expr::LV_ClassTemporary || Kind == Expr::LV_ArrayTemporary)
+ S.Diag(Init->getLocStart(), diag::warn_temporary_array_to_pointer_decay)
+ << Init->getSourceRange();
+ }
+
QualType DestType = Entity.getType().getNonReferenceType();
// FIXME: Ugly hack around the fact that Entity.getType() is not
// the same as Entity.getDecl()->getType() in cases involving type merging,
@@ -4842,7 +4884,6 @@ InitializationSequence::Perform(Sema &S,
case SK_QualificationConversionXValue:
case SK_QualificationConversionRValue:
case SK_ConversionSequence:
- case SK_ListConstructorCall:
case SK_ListInitialization:
case SK_UnwrapInitList:
case SK_RewrapInitList:
@@ -4862,6 +4903,7 @@ InitializationSequence::Perform(Sema &S,
}
case SK_ConstructorInitialization:
+ case SK_ListConstructorCall:
case SK_ZeroInitialization:
break;
}
@@ -5152,7 +5194,10 @@ InitializationSequence::Perform(Sema &S,
InitializedEntity TempEntity = InitializedEntity::InitializeTemporary(
Entity.getType().getNonReferenceType());
bool UseTemporary = Entity.getType()->isReferenceType();
- InitListExpr *InitList = cast<InitListExpr>(CurInit.get());
+ assert(Args.size() == 1 && "expected a single argument for list init");
+ InitListExpr *InitList = cast<InitListExpr>(Args.get()[0]);
+ S.Diag(InitList->getExprLoc(), diag::warn_cxx98_compat_ctor_list_init)
+ << InitList->getSourceRange();
MultiExprArg Arg(InitList->getInits(), InitList->getNumInits());
CurInit = PerformConstructorInitialization(S, UseTemporary ? TempEntity :
Entity,
@@ -5198,7 +5243,8 @@ InitializationSequence::Perform(Sema &S,
step_iterator NextStep = Step;
++NextStep;
if (NextStep != StepEnd &&
- NextStep->Kind == SK_ConstructorInitialization) {
+ (NextStep->Kind == SK_ConstructorInitialization ||
+ NextStep->Kind == SK_ListConstructorCall)) {
// The need for zero-initialization is recorded directly into
// the call to the object's constructor within the next step.
ConstructorInitRequiresZeroInit = true;
@@ -5330,6 +5376,8 @@ InitializationSequence::Perform(Sema &S,
}
InitListExpr *ILE = cast<InitListExpr>(CurInit.take());
+ S.Diag(ILE->getExprLoc(), diag::warn_cxx98_compat_initializer_list_init)
+ << ILE->getSourceRange();
unsigned NumInits = ILE->getNumInits();
SmallVector<Expr*, 16> Converted(NumInits);
InitializedEntity HiddenArray = InitializedEntity::InitializeTemporary(
@@ -6130,8 +6178,8 @@ Sema::CanPerformCopyInitialization(const InitializedEntity &Entity,
Expr *InitE = Init.get();
assert(InitE && "No initialization expression");
- InitializationKind Kind = InitializationKind::CreateCopy(SourceLocation(),
- SourceLocation());
+ InitializationKind Kind
+ = InitializationKind::CreateCopy(InitE->getLocStart(), SourceLocation());
InitializationSequence Seq(*this, Entity, Kind, &InitE, 1);
return !Seq.Failed();
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-23 12:05:05 +0000