forked from OSchip/llvm-project
1740 lines
72 KiB
C++
1740 lines
72 KiB
C++
//===- ExprCXX.cpp - (C++) Expression AST Node Implementation -------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the subclesses of Expr class declared in ExprCXX.h
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "clang/AST/ExprCXX.h"
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/AST/Attr.h"
|
|
#include "clang/AST/ComputeDependence.h"
|
|
#include "clang/AST/Decl.h"
|
|
#include "clang/AST/DeclAccessPair.h"
|
|
#include "clang/AST/DeclBase.h"
|
|
#include "clang/AST/DeclCXX.h"
|
|
#include "clang/AST/DeclTemplate.h"
|
|
#include "clang/AST/DeclarationName.h"
|
|
#include "clang/AST/DependenceFlags.h"
|
|
#include "clang/AST/Expr.h"
|
|
#include "clang/AST/LambdaCapture.h"
|
|
#include "clang/AST/NestedNameSpecifier.h"
|
|
#include "clang/AST/TemplateBase.h"
|
|
#include "clang/AST/Type.h"
|
|
#include "clang/AST/TypeLoc.h"
|
|
#include "clang/Basic/LLVM.h"
|
|
#include "clang/Basic/OperatorKinds.h"
|
|
#include "clang/Basic/SourceLocation.h"
|
|
#include "clang/Basic/Specifiers.h"
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/Support/Casting.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include <cassert>
|
|
#include <cstddef>
|
|
#include <cstring>
|
|
#include <memory>
|
|
|
|
using namespace clang;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Child Iterators for iterating over subexpressions/substatements
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
bool CXXOperatorCallExpr::isInfixBinaryOp() const {
|
|
// An infix binary operator is any operator with two arguments other than
|
|
// operator() and operator[]. Note that none of these operators can have
|
|
// default arguments, so it suffices to check the number of argument
|
|
// expressions.
|
|
if (getNumArgs() != 2)
|
|
return false;
|
|
|
|
switch (getOperator()) {
|
|
case OO_Call: case OO_Subscript:
|
|
return false;
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
|
|
CXXRewrittenBinaryOperator::DecomposedForm
|
|
CXXRewrittenBinaryOperator::getDecomposedForm() const {
|
|
DecomposedForm Result = {};
|
|
const Expr *E = getSemanticForm()->IgnoreImplicit();
|
|
|
|
// Remove an outer '!' if it exists (only happens for a '!=' rewrite).
|
|
bool SkippedNot = false;
|
|
if (auto *NotEq = dyn_cast<UnaryOperator>(E)) {
|
|
assert(NotEq->getOpcode() == UO_LNot);
|
|
E = NotEq->getSubExpr()->IgnoreImplicit();
|
|
SkippedNot = true;
|
|
}
|
|
|
|
// Decompose the outer binary operator.
|
|
if (auto *BO = dyn_cast<BinaryOperator>(E)) {
|
|
assert(!SkippedNot || BO->getOpcode() == BO_EQ);
|
|
Result.Opcode = SkippedNot ? BO_NE : BO->getOpcode();
|
|
Result.LHS = BO->getLHS();
|
|
Result.RHS = BO->getRHS();
|
|
Result.InnerBinOp = BO;
|
|
} else if (auto *BO = dyn_cast<CXXOperatorCallExpr>(E)) {
|
|
assert(!SkippedNot || BO->getOperator() == OO_EqualEqual);
|
|
assert(BO->isInfixBinaryOp());
|
|
switch (BO->getOperator()) {
|
|
case OO_Less: Result.Opcode = BO_LT; break;
|
|
case OO_LessEqual: Result.Opcode = BO_LE; break;
|
|
case OO_Greater: Result.Opcode = BO_GT; break;
|
|
case OO_GreaterEqual: Result.Opcode = BO_GE; break;
|
|
case OO_Spaceship: Result.Opcode = BO_Cmp; break;
|
|
case OO_EqualEqual: Result.Opcode = SkippedNot ? BO_NE : BO_EQ; break;
|
|
default: llvm_unreachable("unexpected binop in rewritten operator expr");
|
|
}
|
|
Result.LHS = BO->getArg(0);
|
|
Result.RHS = BO->getArg(1);
|
|
Result.InnerBinOp = BO;
|
|
} else {
|
|
llvm_unreachable("unexpected rewritten operator form");
|
|
}
|
|
|
|
// Put the operands in the right order for == and !=, and canonicalize the
|
|
// <=> subexpression onto the LHS for all other forms.
|
|
if (isReversed())
|
|
std::swap(Result.LHS, Result.RHS);
|
|
|
|
// If this isn't a spaceship rewrite, we're done.
|
|
if (Result.Opcode == BO_EQ || Result.Opcode == BO_NE)
|
|
return Result;
|
|
|
|
// Otherwise, we expect a <=> to now be on the LHS.
|
|
E = Result.LHS->IgnoreImplicitAsWritten();
|
|
if (auto *BO = dyn_cast<BinaryOperator>(E)) {
|
|
assert(BO->getOpcode() == BO_Cmp);
|
|
Result.LHS = BO->getLHS();
|
|
Result.RHS = BO->getRHS();
|
|
Result.InnerBinOp = BO;
|
|
} else if (auto *BO = dyn_cast<CXXOperatorCallExpr>(E)) {
|
|
assert(BO->getOperator() == OO_Spaceship);
|
|
Result.LHS = BO->getArg(0);
|
|
Result.RHS = BO->getArg(1);
|
|
Result.InnerBinOp = BO;
|
|
} else {
|
|
llvm_unreachable("unexpected rewritten operator form");
|
|
}
|
|
|
|
// Put the comparison operands in the right order.
|
|
if (isReversed())
|
|
std::swap(Result.LHS, Result.RHS);
|
|
return Result;
|
|
}
|
|
|
|
bool CXXTypeidExpr::isPotentiallyEvaluated() const {
|
|
if (isTypeOperand())
|
|
return false;
|
|
|
|
// C++11 [expr.typeid]p3:
|
|
// When typeid is applied to an expression other than a glvalue of
|
|
// polymorphic class type, [...] the expression is an unevaluated operand.
|
|
const Expr *E = getExprOperand();
|
|
if (const CXXRecordDecl *RD = E->getType()->getAsCXXRecordDecl())
|
|
if (RD->isPolymorphic() && E->isGLValue())
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
bool CXXTypeidExpr::isMostDerived(ASTContext &Context) const {
|
|
assert(!isTypeOperand() && "Cannot call isMostDerived for typeid(type)");
|
|
const Expr *E = getExprOperand()->IgnoreParenNoopCasts(Context);
|
|
if (const auto *DRE = dyn_cast<DeclRefExpr>(E)) {
|
|
QualType Ty = DRE->getDecl()->getType();
|
|
if (!Ty->isPointerType() && !Ty->isReferenceType())
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
QualType CXXTypeidExpr::getTypeOperand(ASTContext &Context) const {
|
|
assert(isTypeOperand() && "Cannot call getTypeOperand for typeid(expr)");
|
|
Qualifiers Quals;
|
|
return Context.getUnqualifiedArrayType(
|
|
Operand.get<TypeSourceInfo *>()->getType().getNonReferenceType(), Quals);
|
|
}
|
|
|
|
QualType CXXUuidofExpr::getTypeOperand(ASTContext &Context) const {
|
|
assert(isTypeOperand() && "Cannot call getTypeOperand for __uuidof(expr)");
|
|
Qualifiers Quals;
|
|
return Context.getUnqualifiedArrayType(
|
|
Operand.get<TypeSourceInfo *>()->getType().getNonReferenceType(), Quals);
|
|
}
|
|
|
|
// CXXScalarValueInitExpr
|
|
SourceLocation CXXScalarValueInitExpr::getBeginLoc() const {
|
|
return TypeInfo ? TypeInfo->getTypeLoc().getBeginLoc() : getRParenLoc();
|
|
}
|
|
|
|
// CXXNewExpr
|
|
CXXNewExpr::CXXNewExpr(bool IsGlobalNew, FunctionDecl *OperatorNew,
|
|
FunctionDecl *OperatorDelete, bool ShouldPassAlignment,
|
|
bool UsualArrayDeleteWantsSize,
|
|
ArrayRef<Expr *> PlacementArgs, SourceRange TypeIdParens,
|
|
Optional<Expr *> ArraySize,
|
|
InitializationStyle InitializationStyle,
|
|
Expr *Initializer, QualType Ty,
|
|
TypeSourceInfo *AllocatedTypeInfo, SourceRange Range,
|
|
SourceRange DirectInitRange)
|
|
: Expr(CXXNewExprClass, Ty, VK_RValue, OK_Ordinary),
|
|
OperatorNew(OperatorNew), OperatorDelete(OperatorDelete),
|
|
AllocatedTypeInfo(AllocatedTypeInfo), Range(Range),
|
|
DirectInitRange(DirectInitRange) {
|
|
|
|
assert((Initializer != nullptr || InitializationStyle == NoInit) &&
|
|
"Only NoInit can have no initializer!");
|
|
|
|
CXXNewExprBits.IsGlobalNew = IsGlobalNew;
|
|
CXXNewExprBits.IsArray = ArraySize.hasValue();
|
|
CXXNewExprBits.ShouldPassAlignment = ShouldPassAlignment;
|
|
CXXNewExprBits.UsualArrayDeleteWantsSize = UsualArrayDeleteWantsSize;
|
|
CXXNewExprBits.StoredInitializationStyle =
|
|
Initializer ? InitializationStyle + 1 : 0;
|
|
bool IsParenTypeId = TypeIdParens.isValid();
|
|
CXXNewExprBits.IsParenTypeId = IsParenTypeId;
|
|
CXXNewExprBits.NumPlacementArgs = PlacementArgs.size();
|
|
|
|
if (ArraySize)
|
|
getTrailingObjects<Stmt *>()[arraySizeOffset()] = *ArraySize;
|
|
if (Initializer)
|
|
getTrailingObjects<Stmt *>()[initExprOffset()] = Initializer;
|
|
for (unsigned I = 0; I != PlacementArgs.size(); ++I)
|
|
getTrailingObjects<Stmt *>()[placementNewArgsOffset() + I] =
|
|
PlacementArgs[I];
|
|
if (IsParenTypeId)
|
|
getTrailingObjects<SourceRange>()[0] = TypeIdParens;
|
|
|
|
switch (getInitializationStyle()) {
|
|
case CallInit:
|
|
this->Range.setEnd(DirectInitRange.getEnd());
|
|
break;
|
|
case ListInit:
|
|
this->Range.setEnd(getInitializer()->getSourceRange().getEnd());
|
|
break;
|
|
default:
|
|
if (IsParenTypeId)
|
|
this->Range.setEnd(TypeIdParens.getEnd());
|
|
break;
|
|
}
|
|
|
|
setDependence(computeDependence(this));
|
|
}
|
|
|
|
CXXNewExpr::CXXNewExpr(EmptyShell Empty, bool IsArray,
|
|
unsigned NumPlacementArgs, bool IsParenTypeId)
|
|
: Expr(CXXNewExprClass, Empty) {
|
|
CXXNewExprBits.IsArray = IsArray;
|
|
CXXNewExprBits.NumPlacementArgs = NumPlacementArgs;
|
|
CXXNewExprBits.IsParenTypeId = IsParenTypeId;
|
|
}
|
|
|
|
CXXNewExpr *
|
|
CXXNewExpr::Create(const ASTContext &Ctx, bool IsGlobalNew,
|
|
FunctionDecl *OperatorNew, FunctionDecl *OperatorDelete,
|
|
bool ShouldPassAlignment, bool UsualArrayDeleteWantsSize,
|
|
ArrayRef<Expr *> PlacementArgs, SourceRange TypeIdParens,
|
|
Optional<Expr *> ArraySize,
|
|
InitializationStyle InitializationStyle, Expr *Initializer,
|
|
QualType Ty, TypeSourceInfo *AllocatedTypeInfo,
|
|
SourceRange Range, SourceRange DirectInitRange) {
|
|
bool IsArray = ArraySize.hasValue();
|
|
bool HasInit = Initializer != nullptr;
|
|
unsigned NumPlacementArgs = PlacementArgs.size();
|
|
bool IsParenTypeId = TypeIdParens.isValid();
|
|
void *Mem =
|
|
Ctx.Allocate(totalSizeToAlloc<Stmt *, SourceRange>(
|
|
IsArray + HasInit + NumPlacementArgs, IsParenTypeId),
|
|
alignof(CXXNewExpr));
|
|
return new (Mem)
|
|
CXXNewExpr(IsGlobalNew, OperatorNew, OperatorDelete, ShouldPassAlignment,
|
|
UsualArrayDeleteWantsSize, PlacementArgs, TypeIdParens,
|
|
ArraySize, InitializationStyle, Initializer, Ty,
|
|
AllocatedTypeInfo, Range, DirectInitRange);
|
|
}
|
|
|
|
CXXNewExpr *CXXNewExpr::CreateEmpty(const ASTContext &Ctx, bool IsArray,
|
|
bool HasInit, unsigned NumPlacementArgs,
|
|
bool IsParenTypeId) {
|
|
void *Mem =
|
|
Ctx.Allocate(totalSizeToAlloc<Stmt *, SourceRange>(
|
|
IsArray + HasInit + NumPlacementArgs, IsParenTypeId),
|
|
alignof(CXXNewExpr));
|
|
return new (Mem)
|
|
CXXNewExpr(EmptyShell(), IsArray, NumPlacementArgs, IsParenTypeId);
|
|
}
|
|
|
|
bool CXXNewExpr::shouldNullCheckAllocation() const {
|
|
return getOperatorNew()
|
|
->getType()
|
|
->castAs<FunctionProtoType>()
|
|
->isNothrow() &&
|
|
!getOperatorNew()->isReservedGlobalPlacementOperator();
|
|
}
|
|
|
|
// CXXDeleteExpr
|
|
QualType CXXDeleteExpr::getDestroyedType() const {
|
|
const Expr *Arg = getArgument();
|
|
|
|
// For a destroying operator delete, we may have implicitly converted the
|
|
// pointer type to the type of the parameter of the 'operator delete'
|
|
// function.
|
|
while (const auto *ICE = dyn_cast<ImplicitCastExpr>(Arg)) {
|
|
if (ICE->getCastKind() == CK_DerivedToBase ||
|
|
ICE->getCastKind() == CK_UncheckedDerivedToBase ||
|
|
ICE->getCastKind() == CK_NoOp) {
|
|
assert((ICE->getCastKind() == CK_NoOp ||
|
|
getOperatorDelete()->isDestroyingOperatorDelete()) &&
|
|
"only a destroying operator delete can have a converted arg");
|
|
Arg = ICE->getSubExpr();
|
|
} else
|
|
break;
|
|
}
|
|
|
|
// The type-to-delete may not be a pointer if it's a dependent type.
|
|
const QualType ArgType = Arg->getType();
|
|
|
|
if (ArgType->isDependentType() && !ArgType->isPointerType())
|
|
return QualType();
|
|
|
|
return ArgType->castAs<PointerType>()->getPointeeType();
|
|
}
|
|
|
|
// CXXPseudoDestructorExpr
|
|
PseudoDestructorTypeStorage::PseudoDestructorTypeStorage(TypeSourceInfo *Info)
|
|
: Type(Info) {
|
|
Location = Info->getTypeLoc().getLocalSourceRange().getBegin();
|
|
}
|
|
|
|
CXXPseudoDestructorExpr::CXXPseudoDestructorExpr(
|
|
const ASTContext &Context, Expr *Base, bool isArrow,
|
|
SourceLocation OperatorLoc, NestedNameSpecifierLoc QualifierLoc,
|
|
TypeSourceInfo *ScopeType, SourceLocation ColonColonLoc,
|
|
SourceLocation TildeLoc, PseudoDestructorTypeStorage DestroyedType)
|
|
: Expr(CXXPseudoDestructorExprClass, Context.BoundMemberTy, VK_RValue,
|
|
OK_Ordinary),
|
|
Base(static_cast<Stmt *>(Base)), IsArrow(isArrow),
|
|
OperatorLoc(OperatorLoc), QualifierLoc(QualifierLoc),
|
|
ScopeType(ScopeType), ColonColonLoc(ColonColonLoc), TildeLoc(TildeLoc),
|
|
DestroyedType(DestroyedType) {
|
|
setDependence(computeDependence(this));
|
|
}
|
|
|
|
QualType CXXPseudoDestructorExpr::getDestroyedType() const {
|
|
if (TypeSourceInfo *TInfo = DestroyedType.getTypeSourceInfo())
|
|
return TInfo->getType();
|
|
|
|
return QualType();
|
|
}
|
|
|
|
SourceLocation CXXPseudoDestructorExpr::getEndLoc() const {
|
|
SourceLocation End = DestroyedType.getLocation();
|
|
if (TypeSourceInfo *TInfo = DestroyedType.getTypeSourceInfo())
|
|
End = TInfo->getTypeLoc().getLocalSourceRange().getEnd();
|
|
return End;
|
|
}
|
|
|
|
// UnresolvedLookupExpr
|
|
UnresolvedLookupExpr::UnresolvedLookupExpr(
|
|
const ASTContext &Context, CXXRecordDecl *NamingClass,
|
|
NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc,
|
|
const DeclarationNameInfo &NameInfo, bool RequiresADL, bool Overloaded,
|
|
const TemplateArgumentListInfo *TemplateArgs, UnresolvedSetIterator Begin,
|
|
UnresolvedSetIterator End)
|
|
: OverloadExpr(UnresolvedLookupExprClass, Context, QualifierLoc,
|
|
TemplateKWLoc, NameInfo, TemplateArgs, Begin, End, false,
|
|
false, false),
|
|
NamingClass(NamingClass) {
|
|
UnresolvedLookupExprBits.RequiresADL = RequiresADL;
|
|
UnresolvedLookupExprBits.Overloaded = Overloaded;
|
|
}
|
|
|
|
UnresolvedLookupExpr::UnresolvedLookupExpr(EmptyShell Empty,
|
|
unsigned NumResults,
|
|
bool HasTemplateKWAndArgsInfo)
|
|
: OverloadExpr(UnresolvedLookupExprClass, Empty, NumResults,
|
|
HasTemplateKWAndArgsInfo) {}
|
|
|
|
UnresolvedLookupExpr *UnresolvedLookupExpr::Create(
|
|
const ASTContext &Context, CXXRecordDecl *NamingClass,
|
|
NestedNameSpecifierLoc QualifierLoc, const DeclarationNameInfo &NameInfo,
|
|
bool RequiresADL, bool Overloaded, UnresolvedSetIterator Begin,
|
|
UnresolvedSetIterator End) {
|
|
unsigned NumResults = End - Begin;
|
|
unsigned Size = totalSizeToAlloc<DeclAccessPair, ASTTemplateKWAndArgsInfo,
|
|
TemplateArgumentLoc>(NumResults, 0, 0);
|
|
void *Mem = Context.Allocate(Size, alignof(UnresolvedLookupExpr));
|
|
return new (Mem) UnresolvedLookupExpr(Context, NamingClass, QualifierLoc,
|
|
SourceLocation(), NameInfo, RequiresADL,
|
|
Overloaded, nullptr, Begin, End);
|
|
}
|
|
|
|
UnresolvedLookupExpr *UnresolvedLookupExpr::Create(
|
|
const ASTContext &Context, CXXRecordDecl *NamingClass,
|
|
NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc,
|
|
const DeclarationNameInfo &NameInfo, bool RequiresADL,
|
|
const TemplateArgumentListInfo *Args, UnresolvedSetIterator Begin,
|
|
UnresolvedSetIterator End) {
|
|
assert(Args || TemplateKWLoc.isValid());
|
|
unsigned NumResults = End - Begin;
|
|
unsigned NumTemplateArgs = Args ? Args->size() : 0;
|
|
unsigned Size =
|
|
totalSizeToAlloc<DeclAccessPair, ASTTemplateKWAndArgsInfo,
|
|
TemplateArgumentLoc>(NumResults, 1, NumTemplateArgs);
|
|
void *Mem = Context.Allocate(Size, alignof(UnresolvedLookupExpr));
|
|
return new (Mem) UnresolvedLookupExpr(Context, NamingClass, QualifierLoc,
|
|
TemplateKWLoc, NameInfo, RequiresADL,
|
|
/*Overloaded*/ true, Args, Begin, End);
|
|
}
|
|
|
|
UnresolvedLookupExpr *UnresolvedLookupExpr::CreateEmpty(
|
|
const ASTContext &Context, unsigned NumResults,
|
|
bool HasTemplateKWAndArgsInfo, unsigned NumTemplateArgs) {
|
|
assert(NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo);
|
|
unsigned Size = totalSizeToAlloc<DeclAccessPair, ASTTemplateKWAndArgsInfo,
|
|
TemplateArgumentLoc>(
|
|
NumResults, HasTemplateKWAndArgsInfo, NumTemplateArgs);
|
|
void *Mem = Context.Allocate(Size, alignof(UnresolvedLookupExpr));
|
|
return new (Mem)
|
|
UnresolvedLookupExpr(EmptyShell(), NumResults, HasTemplateKWAndArgsInfo);
|
|
}
|
|
|
|
OverloadExpr::OverloadExpr(StmtClass SC, const ASTContext &Context,
|
|
NestedNameSpecifierLoc QualifierLoc,
|
|
SourceLocation TemplateKWLoc,
|
|
const DeclarationNameInfo &NameInfo,
|
|
const TemplateArgumentListInfo *TemplateArgs,
|
|
UnresolvedSetIterator Begin,
|
|
UnresolvedSetIterator End, bool KnownDependent,
|
|
bool KnownInstantiationDependent,
|
|
bool KnownContainsUnexpandedParameterPack)
|
|
: Expr(SC, Context.OverloadTy, VK_LValue, OK_Ordinary), NameInfo(NameInfo),
|
|
QualifierLoc(QualifierLoc) {
|
|
unsigned NumResults = End - Begin;
|
|
OverloadExprBits.NumResults = NumResults;
|
|
OverloadExprBits.HasTemplateKWAndArgsInfo =
|
|
(TemplateArgs != nullptr ) || TemplateKWLoc.isValid();
|
|
|
|
if (NumResults) {
|
|
// Copy the results to the trailing array past UnresolvedLookupExpr
|
|
// or UnresolvedMemberExpr.
|
|
DeclAccessPair *Results = getTrailingResults();
|
|
memcpy(Results, Begin.I, NumResults * sizeof(DeclAccessPair));
|
|
}
|
|
|
|
if (TemplateArgs) {
|
|
auto Deps = TemplateArgumentDependence::None;
|
|
getTrailingASTTemplateKWAndArgsInfo()->initializeFrom(
|
|
TemplateKWLoc, *TemplateArgs, getTrailingTemplateArgumentLoc(), Deps);
|
|
} else if (TemplateKWLoc.isValid()) {
|
|
getTrailingASTTemplateKWAndArgsInfo()->initializeFrom(TemplateKWLoc);
|
|
}
|
|
|
|
setDependence(computeDependence(this, KnownDependent,
|
|
KnownInstantiationDependent,
|
|
KnownContainsUnexpandedParameterPack));
|
|
if (isTypeDependent())
|
|
setType(Context.DependentTy);
|
|
}
|
|
|
|
OverloadExpr::OverloadExpr(StmtClass SC, EmptyShell Empty, unsigned NumResults,
|
|
bool HasTemplateKWAndArgsInfo)
|
|
: Expr(SC, Empty) {
|
|
OverloadExprBits.NumResults = NumResults;
|
|
OverloadExprBits.HasTemplateKWAndArgsInfo = HasTemplateKWAndArgsInfo;
|
|
}
|
|
|
|
// DependentScopeDeclRefExpr
|
|
DependentScopeDeclRefExpr::DependentScopeDeclRefExpr(
|
|
QualType Ty, NestedNameSpecifierLoc QualifierLoc,
|
|
SourceLocation TemplateKWLoc, const DeclarationNameInfo &NameInfo,
|
|
const TemplateArgumentListInfo *Args)
|
|
: Expr(DependentScopeDeclRefExprClass, Ty, VK_LValue, OK_Ordinary),
|
|
QualifierLoc(QualifierLoc), NameInfo(NameInfo) {
|
|
DependentScopeDeclRefExprBits.HasTemplateKWAndArgsInfo =
|
|
(Args != nullptr) || TemplateKWLoc.isValid();
|
|
if (Args) {
|
|
auto Deps = TemplateArgumentDependence::None;
|
|
getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
|
|
TemplateKWLoc, *Args, getTrailingObjects<TemplateArgumentLoc>(), Deps);
|
|
} else if (TemplateKWLoc.isValid()) {
|
|
getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
|
|
TemplateKWLoc);
|
|
}
|
|
setDependence(computeDependence(this));
|
|
}
|
|
|
|
DependentScopeDeclRefExpr *DependentScopeDeclRefExpr::Create(
|
|
const ASTContext &Context, NestedNameSpecifierLoc QualifierLoc,
|
|
SourceLocation TemplateKWLoc, const DeclarationNameInfo &NameInfo,
|
|
const TemplateArgumentListInfo *Args) {
|
|
assert(QualifierLoc && "should be created for dependent qualifiers");
|
|
bool HasTemplateKWAndArgsInfo = Args || TemplateKWLoc.isValid();
|
|
std::size_t Size =
|
|
totalSizeToAlloc<ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
|
|
HasTemplateKWAndArgsInfo, Args ? Args->size() : 0);
|
|
void *Mem = Context.Allocate(Size);
|
|
return new (Mem) DependentScopeDeclRefExpr(Context.DependentTy, QualifierLoc,
|
|
TemplateKWLoc, NameInfo, Args);
|
|
}
|
|
|
|
DependentScopeDeclRefExpr *
|
|
DependentScopeDeclRefExpr::CreateEmpty(const ASTContext &Context,
|
|
bool HasTemplateKWAndArgsInfo,
|
|
unsigned NumTemplateArgs) {
|
|
assert(NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo);
|
|
std::size_t Size =
|
|
totalSizeToAlloc<ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
|
|
HasTemplateKWAndArgsInfo, NumTemplateArgs);
|
|
void *Mem = Context.Allocate(Size);
|
|
auto *E = new (Mem) DependentScopeDeclRefExpr(
|
|
QualType(), NestedNameSpecifierLoc(), SourceLocation(),
|
|
DeclarationNameInfo(), nullptr);
|
|
E->DependentScopeDeclRefExprBits.HasTemplateKWAndArgsInfo =
|
|
HasTemplateKWAndArgsInfo;
|
|
return E;
|
|
}
|
|
|
|
SourceLocation CXXConstructExpr::getBeginLoc() const {
|
|
if (isa<CXXTemporaryObjectExpr>(this))
|
|
return cast<CXXTemporaryObjectExpr>(this)->getBeginLoc();
|
|
return getLocation();
|
|
}
|
|
|
|
SourceLocation CXXConstructExpr::getEndLoc() const {
|
|
if (isa<CXXTemporaryObjectExpr>(this))
|
|
return cast<CXXTemporaryObjectExpr>(this)->getEndLoc();
|
|
|
|
if (ParenOrBraceRange.isValid())
|
|
return ParenOrBraceRange.getEnd();
|
|
|
|
SourceLocation End = getLocation();
|
|
for (unsigned I = getNumArgs(); I > 0; --I) {
|
|
const Expr *Arg = getArg(I-1);
|
|
if (!Arg->isDefaultArgument()) {
|
|
SourceLocation NewEnd = Arg->getEndLoc();
|
|
if (NewEnd.isValid()) {
|
|
End = NewEnd;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return End;
|
|
}
|
|
|
|
CXXOperatorCallExpr::CXXOperatorCallExpr(OverloadedOperatorKind OpKind,
|
|
Expr *Fn, ArrayRef<Expr *> Args,
|
|
QualType Ty, ExprValueKind VK,
|
|
SourceLocation OperatorLoc,
|
|
FPOptionsOverride FPFeatures,
|
|
ADLCallKind UsesADL)
|
|
: CallExpr(CXXOperatorCallExprClass, Fn, /*PreArgs=*/{}, Args, Ty, VK,
|
|
OperatorLoc, FPFeatures, /*MinNumArgs=*/0, UsesADL) {
|
|
CXXOperatorCallExprBits.OperatorKind = OpKind;
|
|
assert(
|
|
(CXXOperatorCallExprBits.OperatorKind == static_cast<unsigned>(OpKind)) &&
|
|
"OperatorKind overflow!");
|
|
Range = getSourceRangeImpl();
|
|
}
|
|
|
|
CXXOperatorCallExpr::CXXOperatorCallExpr(unsigned NumArgs, bool HasFPFeatures,
|
|
EmptyShell Empty)
|
|
: CallExpr(CXXOperatorCallExprClass, /*NumPreArgs=*/0, NumArgs,
|
|
HasFPFeatures, Empty) {}
|
|
|
|
CXXOperatorCallExpr *
|
|
CXXOperatorCallExpr::Create(const ASTContext &Ctx,
|
|
OverloadedOperatorKind OpKind, Expr *Fn,
|
|
ArrayRef<Expr *> Args, QualType Ty,
|
|
ExprValueKind VK, SourceLocation OperatorLoc,
|
|
FPOptionsOverride FPFeatures, ADLCallKind UsesADL) {
|
|
// Allocate storage for the trailing objects of CallExpr.
|
|
unsigned NumArgs = Args.size();
|
|
unsigned SizeOfTrailingObjects = CallExpr::sizeOfTrailingObjects(
|
|
/*NumPreArgs=*/0, NumArgs, FPFeatures.requiresTrailingStorage());
|
|
void *Mem = Ctx.Allocate(sizeof(CXXOperatorCallExpr) + SizeOfTrailingObjects,
|
|
alignof(CXXOperatorCallExpr));
|
|
return new (Mem) CXXOperatorCallExpr(OpKind, Fn, Args, Ty, VK, OperatorLoc,
|
|
FPFeatures, UsesADL);
|
|
}
|
|
|
|
CXXOperatorCallExpr *CXXOperatorCallExpr::CreateEmpty(const ASTContext &Ctx,
|
|
unsigned NumArgs,
|
|
bool HasFPFeatures,
|
|
EmptyShell Empty) {
|
|
// Allocate storage for the trailing objects of CallExpr.
|
|
unsigned SizeOfTrailingObjects =
|
|
CallExpr::sizeOfTrailingObjects(/*NumPreArgs=*/0, NumArgs, HasFPFeatures);
|
|
void *Mem = Ctx.Allocate(sizeof(CXXOperatorCallExpr) + SizeOfTrailingObjects,
|
|
alignof(CXXOperatorCallExpr));
|
|
return new (Mem) CXXOperatorCallExpr(NumArgs, HasFPFeatures, Empty);
|
|
}
|
|
|
|
SourceRange CXXOperatorCallExpr::getSourceRangeImpl() const {
|
|
OverloadedOperatorKind Kind = getOperator();
|
|
if (Kind == OO_PlusPlus || Kind == OO_MinusMinus) {
|
|
if (getNumArgs() == 1)
|
|
// Prefix operator
|
|
return SourceRange(getOperatorLoc(), getArg(0)->getEndLoc());
|
|
else
|
|
// Postfix operator
|
|
return SourceRange(getArg(0)->getBeginLoc(), getOperatorLoc());
|
|
} else if (Kind == OO_Arrow) {
|
|
return SourceRange(getArg(0)->getBeginLoc(), getOperatorLoc());
|
|
} else if (Kind == OO_Call) {
|
|
return SourceRange(getArg(0)->getBeginLoc(), getRParenLoc());
|
|
} else if (Kind == OO_Subscript) {
|
|
return SourceRange(getArg(0)->getBeginLoc(), getRParenLoc());
|
|
} else if (getNumArgs() == 1) {
|
|
return SourceRange(getOperatorLoc(), getArg(0)->getEndLoc());
|
|
} else if (getNumArgs() == 2) {
|
|
return SourceRange(getArg(0)->getBeginLoc(), getArg(1)->getEndLoc());
|
|
} else {
|
|
return getOperatorLoc();
|
|
}
|
|
}
|
|
|
|
CXXMemberCallExpr::CXXMemberCallExpr(Expr *Fn, ArrayRef<Expr *> Args,
|
|
QualType Ty, ExprValueKind VK,
|
|
SourceLocation RP,
|
|
FPOptionsOverride FPOptions,
|
|
unsigned MinNumArgs)
|
|
: CallExpr(CXXMemberCallExprClass, Fn, /*PreArgs=*/{}, Args, Ty, VK, RP,
|
|
FPOptions, MinNumArgs, NotADL) {}
|
|
|
|
CXXMemberCallExpr::CXXMemberCallExpr(unsigned NumArgs, bool HasFPFeatures,
|
|
EmptyShell Empty)
|
|
: CallExpr(CXXMemberCallExprClass, /*NumPreArgs=*/0, NumArgs, HasFPFeatures,
|
|
Empty) {}
|
|
|
|
CXXMemberCallExpr *CXXMemberCallExpr::Create(const ASTContext &Ctx, Expr *Fn,
|
|
ArrayRef<Expr *> Args, QualType Ty,
|
|
ExprValueKind VK,
|
|
SourceLocation RP,
|
|
FPOptionsOverride FPFeatures,
|
|
unsigned MinNumArgs) {
|
|
// Allocate storage for the trailing objects of CallExpr.
|
|
unsigned NumArgs = std::max<unsigned>(Args.size(), MinNumArgs);
|
|
unsigned SizeOfTrailingObjects = CallExpr::sizeOfTrailingObjects(
|
|
/*NumPreArgs=*/0, NumArgs, FPFeatures.requiresTrailingStorage());
|
|
void *Mem = Ctx.Allocate(sizeof(CXXMemberCallExpr) + SizeOfTrailingObjects,
|
|
alignof(CXXMemberCallExpr));
|
|
return new (Mem)
|
|
CXXMemberCallExpr(Fn, Args, Ty, VK, RP, FPFeatures, MinNumArgs);
|
|
}
|
|
|
|
CXXMemberCallExpr *CXXMemberCallExpr::CreateEmpty(const ASTContext &Ctx,
|
|
unsigned NumArgs,
|
|
bool HasFPFeatures,
|
|
EmptyShell Empty) {
|
|
// Allocate storage for the trailing objects of CallExpr.
|
|
unsigned SizeOfTrailingObjects =
|
|
CallExpr::sizeOfTrailingObjects(/*NumPreArgs=*/0, NumArgs, HasFPFeatures);
|
|
void *Mem = Ctx.Allocate(sizeof(CXXMemberCallExpr) + SizeOfTrailingObjects,
|
|
alignof(CXXMemberCallExpr));
|
|
return new (Mem) CXXMemberCallExpr(NumArgs, HasFPFeatures, Empty);
|
|
}
|
|
|
|
Expr *CXXMemberCallExpr::getImplicitObjectArgument() const {
|
|
const Expr *Callee = getCallee()->IgnoreParens();
|
|
if (const auto *MemExpr = dyn_cast<MemberExpr>(Callee))
|
|
return MemExpr->getBase();
|
|
if (const auto *BO = dyn_cast<BinaryOperator>(Callee))
|
|
if (BO->getOpcode() == BO_PtrMemD || BO->getOpcode() == BO_PtrMemI)
|
|
return BO->getLHS();
|
|
|
|
// FIXME: Will eventually need to cope with member pointers.
|
|
return nullptr;
|
|
}
|
|
|
|
QualType CXXMemberCallExpr::getObjectType() const {
|
|
QualType Ty = getImplicitObjectArgument()->getType();
|
|
if (Ty->isPointerType())
|
|
Ty = Ty->getPointeeType();
|
|
return Ty;
|
|
}
|
|
|
|
CXXMethodDecl *CXXMemberCallExpr::getMethodDecl() const {
|
|
if (const auto *MemExpr = dyn_cast<MemberExpr>(getCallee()->IgnoreParens()))
|
|
return cast<CXXMethodDecl>(MemExpr->getMemberDecl());
|
|
|
|
// FIXME: Will eventually need to cope with member pointers.
|
|
return nullptr;
|
|
}
|
|
|
|
CXXRecordDecl *CXXMemberCallExpr::getRecordDecl() const {
|
|
Expr* ThisArg = getImplicitObjectArgument();
|
|
if (!ThisArg)
|
|
return nullptr;
|
|
|
|
if (ThisArg->getType()->isAnyPointerType())
|
|
return ThisArg->getType()->getPointeeType()->getAsCXXRecordDecl();
|
|
|
|
return ThisArg->getType()->getAsCXXRecordDecl();
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Named casts
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// getCastName - Get the name of the C++ cast being used, e.g.,
|
|
/// "static_cast", "dynamic_cast", "reinterpret_cast", or
|
|
/// "const_cast". The returned pointer must not be freed.
|
|
const char *CXXNamedCastExpr::getCastName() const {
|
|
switch (getStmtClass()) {
|
|
case CXXStaticCastExprClass: return "static_cast";
|
|
case CXXDynamicCastExprClass: return "dynamic_cast";
|
|
case CXXReinterpretCastExprClass: return "reinterpret_cast";
|
|
case CXXConstCastExprClass: return "const_cast";
|
|
case CXXAddrspaceCastExprClass: return "addrspace_cast";
|
|
default: return "<invalid cast>";
|
|
}
|
|
}
|
|
|
|
CXXStaticCastExpr *
|
|
CXXStaticCastExpr::Create(const ASTContext &C, QualType T, ExprValueKind VK,
|
|
CastKind K, Expr *Op, const CXXCastPath *BasePath,
|
|
TypeSourceInfo *WrittenTy, FPOptionsOverride FPO,
|
|
SourceLocation L, SourceLocation RParenLoc,
|
|
SourceRange AngleBrackets) {
|
|
unsigned PathSize = (BasePath ? BasePath->size() : 0);
|
|
void *Buffer =
|
|
C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *, FPOptionsOverride>(
|
|
PathSize, FPO.requiresTrailingStorage()));
|
|
auto *E = new (Buffer) CXXStaticCastExpr(T, VK, K, Op, PathSize, WrittenTy,
|
|
FPO, L, RParenLoc, AngleBrackets);
|
|
if (PathSize)
|
|
std::uninitialized_copy_n(BasePath->data(), BasePath->size(),
|
|
E->getTrailingObjects<CXXBaseSpecifier *>());
|
|
return E;
|
|
}
|
|
|
|
CXXStaticCastExpr *CXXStaticCastExpr::CreateEmpty(const ASTContext &C,
|
|
unsigned PathSize,
|
|
bool HasFPFeatures) {
|
|
void *Buffer =
|
|
C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *, FPOptionsOverride>(
|
|
PathSize, HasFPFeatures));
|
|
return new (Buffer) CXXStaticCastExpr(EmptyShell(), PathSize, HasFPFeatures);
|
|
}
|
|
|
|
CXXDynamicCastExpr *CXXDynamicCastExpr::Create(const ASTContext &C, QualType T,
|
|
ExprValueKind VK,
|
|
CastKind K, Expr *Op,
|
|
const CXXCastPath *BasePath,
|
|
TypeSourceInfo *WrittenTy,
|
|
SourceLocation L,
|
|
SourceLocation RParenLoc,
|
|
SourceRange AngleBrackets) {
|
|
unsigned PathSize = (BasePath ? BasePath->size() : 0);
|
|
void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
|
|
auto *E =
|
|
new (Buffer) CXXDynamicCastExpr(T, VK, K, Op, PathSize, WrittenTy, L,
|
|
RParenLoc, AngleBrackets);
|
|
if (PathSize)
|
|
std::uninitialized_copy_n(BasePath->data(), BasePath->size(),
|
|
E->getTrailingObjects<CXXBaseSpecifier *>());
|
|
return E;
|
|
}
|
|
|
|
CXXDynamicCastExpr *CXXDynamicCastExpr::CreateEmpty(const ASTContext &C,
|
|
unsigned PathSize) {
|
|
void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
|
|
return new (Buffer) CXXDynamicCastExpr(EmptyShell(), PathSize);
|
|
}
|
|
|
|
/// isAlwaysNull - Return whether the result of the dynamic_cast is proven
|
|
/// to always be null. For example:
|
|
///
|
|
/// struct A { };
|
|
/// struct B final : A { };
|
|
/// struct C { };
|
|
///
|
|
/// C *f(B* b) { return dynamic_cast<C*>(b); }
|
|
bool CXXDynamicCastExpr::isAlwaysNull() const
|
|
{
|
|
QualType SrcType = getSubExpr()->getType();
|
|
QualType DestType = getType();
|
|
|
|
if (const auto *SrcPTy = SrcType->getAs<PointerType>()) {
|
|
SrcType = SrcPTy->getPointeeType();
|
|
DestType = DestType->castAs<PointerType>()->getPointeeType();
|
|
}
|
|
|
|
if (DestType->isVoidType())
|
|
return false;
|
|
|
|
const auto *SrcRD =
|
|
cast<CXXRecordDecl>(SrcType->castAs<RecordType>()->getDecl());
|
|
|
|
if (!SrcRD->hasAttr<FinalAttr>())
|
|
return false;
|
|
|
|
const auto *DestRD =
|
|
cast<CXXRecordDecl>(DestType->castAs<RecordType>()->getDecl());
|
|
|
|
return !DestRD->isDerivedFrom(SrcRD);
|
|
}
|
|
|
|
CXXReinterpretCastExpr *
|
|
CXXReinterpretCastExpr::Create(const ASTContext &C, QualType T,
|
|
ExprValueKind VK, CastKind K, Expr *Op,
|
|
const CXXCastPath *BasePath,
|
|
TypeSourceInfo *WrittenTy, SourceLocation L,
|
|
SourceLocation RParenLoc,
|
|
SourceRange AngleBrackets) {
|
|
unsigned PathSize = (BasePath ? BasePath->size() : 0);
|
|
void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
|
|
auto *E =
|
|
new (Buffer) CXXReinterpretCastExpr(T, VK, K, Op, PathSize, WrittenTy, L,
|
|
RParenLoc, AngleBrackets);
|
|
if (PathSize)
|
|
std::uninitialized_copy_n(BasePath->data(), BasePath->size(),
|
|
E->getTrailingObjects<CXXBaseSpecifier *>());
|
|
return E;
|
|
}
|
|
|
|
CXXReinterpretCastExpr *
|
|
CXXReinterpretCastExpr::CreateEmpty(const ASTContext &C, unsigned PathSize) {
|
|
void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
|
|
return new (Buffer) CXXReinterpretCastExpr(EmptyShell(), PathSize);
|
|
}
|
|
|
|
CXXConstCastExpr *CXXConstCastExpr::Create(const ASTContext &C, QualType T,
|
|
ExprValueKind VK, Expr *Op,
|
|
TypeSourceInfo *WrittenTy,
|
|
SourceLocation L,
|
|
SourceLocation RParenLoc,
|
|
SourceRange AngleBrackets) {
|
|
return new (C) CXXConstCastExpr(T, VK, Op, WrittenTy, L, RParenLoc, AngleBrackets);
|
|
}
|
|
|
|
CXXConstCastExpr *CXXConstCastExpr::CreateEmpty(const ASTContext &C) {
|
|
return new (C) CXXConstCastExpr(EmptyShell());
|
|
}
|
|
|
|
CXXAddrspaceCastExpr *
|
|
CXXAddrspaceCastExpr::Create(const ASTContext &C, QualType T, ExprValueKind VK,
|
|
CastKind K, Expr *Op, TypeSourceInfo *WrittenTy,
|
|
SourceLocation L, SourceLocation RParenLoc,
|
|
SourceRange AngleBrackets) {
|
|
return new (C) CXXAddrspaceCastExpr(T, VK, K, Op, WrittenTy, L, RParenLoc,
|
|
AngleBrackets);
|
|
}
|
|
|
|
CXXAddrspaceCastExpr *CXXAddrspaceCastExpr::CreateEmpty(const ASTContext &C) {
|
|
return new (C) CXXAddrspaceCastExpr(EmptyShell());
|
|
}
|
|
|
|
CXXFunctionalCastExpr *CXXFunctionalCastExpr::Create(
|
|
const ASTContext &C, QualType T, ExprValueKind VK, TypeSourceInfo *Written,
|
|
CastKind K, Expr *Op, const CXXCastPath *BasePath, FPOptionsOverride FPO,
|
|
SourceLocation L, SourceLocation R) {
|
|
unsigned PathSize = (BasePath ? BasePath->size() : 0);
|
|
void *Buffer =
|
|
C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *, FPOptionsOverride>(
|
|
PathSize, FPO.requiresTrailingStorage()));
|
|
auto *E = new (Buffer)
|
|
CXXFunctionalCastExpr(T, VK, Written, K, Op, PathSize, FPO, L, R);
|
|
if (PathSize)
|
|
std::uninitialized_copy_n(BasePath->data(), BasePath->size(),
|
|
E->getTrailingObjects<CXXBaseSpecifier *>());
|
|
return E;
|
|
}
|
|
|
|
CXXFunctionalCastExpr *CXXFunctionalCastExpr::CreateEmpty(const ASTContext &C,
|
|
unsigned PathSize,
|
|
bool HasFPFeatures) {
|
|
void *Buffer =
|
|
C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *, FPOptionsOverride>(
|
|
PathSize, HasFPFeatures));
|
|
return new (Buffer)
|
|
CXXFunctionalCastExpr(EmptyShell(), PathSize, HasFPFeatures);
|
|
}
|
|
|
|
SourceLocation CXXFunctionalCastExpr::getBeginLoc() const {
|
|
return getTypeInfoAsWritten()->getTypeLoc().getBeginLoc();
|
|
}
|
|
|
|
SourceLocation CXXFunctionalCastExpr::getEndLoc() const {
|
|
return RParenLoc.isValid() ? RParenLoc : getSubExpr()->getEndLoc();
|
|
}
|
|
|
|
UserDefinedLiteral::UserDefinedLiteral(Expr *Fn, ArrayRef<Expr *> Args,
|
|
QualType Ty, ExprValueKind VK,
|
|
SourceLocation LitEndLoc,
|
|
SourceLocation SuffixLoc,
|
|
FPOptionsOverride FPFeatures)
|
|
: CallExpr(UserDefinedLiteralClass, Fn, /*PreArgs=*/{}, Args, Ty, VK,
|
|
LitEndLoc, FPFeatures, /*MinNumArgs=*/0, NotADL),
|
|
UDSuffixLoc(SuffixLoc) {}
|
|
|
|
UserDefinedLiteral::UserDefinedLiteral(unsigned NumArgs, bool HasFPFeatures,
|
|
EmptyShell Empty)
|
|
: CallExpr(UserDefinedLiteralClass, /*NumPreArgs=*/0, NumArgs,
|
|
HasFPFeatures, Empty) {}
|
|
|
|
UserDefinedLiteral *UserDefinedLiteral::Create(const ASTContext &Ctx, Expr *Fn,
|
|
ArrayRef<Expr *> Args,
|
|
QualType Ty, ExprValueKind VK,
|
|
SourceLocation LitEndLoc,
|
|
SourceLocation SuffixLoc,
|
|
FPOptionsOverride FPFeatures) {
|
|
// Allocate storage for the trailing objects of CallExpr.
|
|
unsigned NumArgs = Args.size();
|
|
unsigned SizeOfTrailingObjects = CallExpr::sizeOfTrailingObjects(
|
|
/*NumPreArgs=*/0, NumArgs, FPFeatures.requiresTrailingStorage());
|
|
void *Mem = Ctx.Allocate(sizeof(UserDefinedLiteral) + SizeOfTrailingObjects,
|
|
alignof(UserDefinedLiteral));
|
|
return new (Mem)
|
|
UserDefinedLiteral(Fn, Args, Ty, VK, LitEndLoc, SuffixLoc, FPFeatures);
|
|
}
|
|
|
|
UserDefinedLiteral *UserDefinedLiteral::CreateEmpty(const ASTContext &Ctx,
|
|
unsigned NumArgs,
|
|
bool HasFPOptions,
|
|
EmptyShell Empty) {
|
|
// Allocate storage for the trailing objects of CallExpr.
|
|
unsigned SizeOfTrailingObjects =
|
|
CallExpr::sizeOfTrailingObjects(/*NumPreArgs=*/0, NumArgs, HasFPOptions);
|
|
void *Mem = Ctx.Allocate(sizeof(UserDefinedLiteral) + SizeOfTrailingObjects,
|
|
alignof(UserDefinedLiteral));
|
|
return new (Mem) UserDefinedLiteral(NumArgs, HasFPOptions, Empty);
|
|
}
|
|
|
|
UserDefinedLiteral::LiteralOperatorKind
|
|
UserDefinedLiteral::getLiteralOperatorKind() const {
|
|
if (getNumArgs() == 0)
|
|
return LOK_Template;
|
|
if (getNumArgs() == 2)
|
|
return LOK_String;
|
|
|
|
assert(getNumArgs() == 1 && "unexpected #args in literal operator call");
|
|
QualType ParamTy =
|
|
cast<FunctionDecl>(getCalleeDecl())->getParamDecl(0)->getType();
|
|
if (ParamTy->isPointerType())
|
|
return LOK_Raw;
|
|
if (ParamTy->isAnyCharacterType())
|
|
return LOK_Character;
|
|
if (ParamTy->isIntegerType())
|
|
return LOK_Integer;
|
|
if (ParamTy->isFloatingType())
|
|
return LOK_Floating;
|
|
|
|
llvm_unreachable("unknown kind of literal operator");
|
|
}
|
|
|
|
Expr *UserDefinedLiteral::getCookedLiteral() {
|
|
#ifndef NDEBUG
|
|
LiteralOperatorKind LOK = getLiteralOperatorKind();
|
|
assert(LOK != LOK_Template && LOK != LOK_Raw && "not a cooked literal");
|
|
#endif
|
|
return getArg(0);
|
|
}
|
|
|
|
const IdentifierInfo *UserDefinedLiteral::getUDSuffix() const {
|
|
return cast<FunctionDecl>(getCalleeDecl())->getLiteralIdentifier();
|
|
}
|
|
|
|
CXXDefaultInitExpr::CXXDefaultInitExpr(const ASTContext &Ctx,
|
|
SourceLocation Loc, FieldDecl *Field,
|
|
QualType Ty, DeclContext *UsedContext)
|
|
: Expr(CXXDefaultInitExprClass, Ty.getNonLValueExprType(Ctx),
|
|
Ty->isLValueReferenceType()
|
|
? VK_LValue
|
|
: Ty->isRValueReferenceType() ? VK_XValue : VK_RValue,
|
|
/*FIXME*/ OK_Ordinary),
|
|
Field(Field), UsedContext(UsedContext) {
|
|
CXXDefaultInitExprBits.Loc = Loc;
|
|
assert(Field->hasInClassInitializer());
|
|
|
|
setDependence(computeDependence(this));
|
|
}
|
|
|
|
CXXTemporary *CXXTemporary::Create(const ASTContext &C,
|
|
const CXXDestructorDecl *Destructor) {
|
|
return new (C) CXXTemporary(Destructor);
|
|
}
|
|
|
|
CXXBindTemporaryExpr *CXXBindTemporaryExpr::Create(const ASTContext &C,
|
|
CXXTemporary *Temp,
|
|
Expr* SubExpr) {
|
|
assert((SubExpr->getType()->isRecordType() ||
|
|
SubExpr->getType()->isArrayType()) &&
|
|
"Expression bound to a temporary must have record or array type!");
|
|
|
|
return new (C) CXXBindTemporaryExpr(Temp, SubExpr);
|
|
}
|
|
|
|
CXXTemporaryObjectExpr::CXXTemporaryObjectExpr(
|
|
CXXConstructorDecl *Cons, QualType Ty, TypeSourceInfo *TSI,
|
|
ArrayRef<Expr *> Args, SourceRange ParenOrBraceRange,
|
|
bool HadMultipleCandidates, bool ListInitialization,
|
|
bool StdInitListInitialization, bool ZeroInitialization)
|
|
: CXXConstructExpr(
|
|
CXXTemporaryObjectExprClass, Ty, TSI->getTypeLoc().getBeginLoc(),
|
|
Cons, /* Elidable=*/false, Args, HadMultipleCandidates,
|
|
ListInitialization, StdInitListInitialization, ZeroInitialization,
|
|
CXXConstructExpr::CK_Complete, ParenOrBraceRange),
|
|
TSI(TSI) {}
|
|
|
|
CXXTemporaryObjectExpr::CXXTemporaryObjectExpr(EmptyShell Empty,
|
|
unsigned NumArgs)
|
|
: CXXConstructExpr(CXXTemporaryObjectExprClass, Empty, NumArgs) {}
|
|
|
|
CXXTemporaryObjectExpr *CXXTemporaryObjectExpr::Create(
|
|
const ASTContext &Ctx, CXXConstructorDecl *Cons, QualType Ty,
|
|
TypeSourceInfo *TSI, ArrayRef<Expr *> Args, SourceRange ParenOrBraceRange,
|
|
bool HadMultipleCandidates, bool ListInitialization,
|
|
bool StdInitListInitialization, bool ZeroInitialization) {
|
|
unsigned SizeOfTrailingObjects = sizeOfTrailingObjects(Args.size());
|
|
void *Mem =
|
|
Ctx.Allocate(sizeof(CXXTemporaryObjectExpr) + SizeOfTrailingObjects,
|
|
alignof(CXXTemporaryObjectExpr));
|
|
return new (Mem) CXXTemporaryObjectExpr(
|
|
Cons, Ty, TSI, Args, ParenOrBraceRange, HadMultipleCandidates,
|
|
ListInitialization, StdInitListInitialization, ZeroInitialization);
|
|
}
|
|
|
|
CXXTemporaryObjectExpr *
|
|
CXXTemporaryObjectExpr::CreateEmpty(const ASTContext &Ctx, unsigned NumArgs) {
|
|
unsigned SizeOfTrailingObjects = sizeOfTrailingObjects(NumArgs);
|
|
void *Mem =
|
|
Ctx.Allocate(sizeof(CXXTemporaryObjectExpr) + SizeOfTrailingObjects,
|
|
alignof(CXXTemporaryObjectExpr));
|
|
return new (Mem) CXXTemporaryObjectExpr(EmptyShell(), NumArgs);
|
|
}
|
|
|
|
SourceLocation CXXTemporaryObjectExpr::getBeginLoc() const {
|
|
return getTypeSourceInfo()->getTypeLoc().getBeginLoc();
|
|
}
|
|
|
|
SourceLocation CXXTemporaryObjectExpr::getEndLoc() const {
|
|
SourceLocation Loc = getParenOrBraceRange().getEnd();
|
|
if (Loc.isInvalid() && getNumArgs())
|
|
Loc = getArg(getNumArgs() - 1)->getEndLoc();
|
|
return Loc;
|
|
}
|
|
|
|
CXXConstructExpr *CXXConstructExpr::Create(
|
|
const ASTContext &Ctx, QualType Ty, SourceLocation Loc,
|
|
CXXConstructorDecl *Ctor, bool Elidable, ArrayRef<Expr *> Args,
|
|
bool HadMultipleCandidates, bool ListInitialization,
|
|
bool StdInitListInitialization, bool ZeroInitialization,
|
|
ConstructionKind ConstructKind, SourceRange ParenOrBraceRange) {
|
|
unsigned SizeOfTrailingObjects = sizeOfTrailingObjects(Args.size());
|
|
void *Mem = Ctx.Allocate(sizeof(CXXConstructExpr) + SizeOfTrailingObjects,
|
|
alignof(CXXConstructExpr));
|
|
return new (Mem) CXXConstructExpr(
|
|
CXXConstructExprClass, Ty, Loc, Ctor, Elidable, Args,
|
|
HadMultipleCandidates, ListInitialization, StdInitListInitialization,
|
|
ZeroInitialization, ConstructKind, ParenOrBraceRange);
|
|
}
|
|
|
|
CXXConstructExpr *CXXConstructExpr::CreateEmpty(const ASTContext &Ctx,
|
|
unsigned NumArgs) {
|
|
unsigned SizeOfTrailingObjects = sizeOfTrailingObjects(NumArgs);
|
|
void *Mem = Ctx.Allocate(sizeof(CXXConstructExpr) + SizeOfTrailingObjects,
|
|
alignof(CXXConstructExpr));
|
|
return new (Mem)
|
|
CXXConstructExpr(CXXConstructExprClass, EmptyShell(), NumArgs);
|
|
}
|
|
|
|
CXXConstructExpr::CXXConstructExpr(
|
|
StmtClass SC, QualType Ty, SourceLocation Loc, CXXConstructorDecl *Ctor,
|
|
bool Elidable, ArrayRef<Expr *> Args, bool HadMultipleCandidates,
|
|
bool ListInitialization, bool StdInitListInitialization,
|
|
bool ZeroInitialization, ConstructionKind ConstructKind,
|
|
SourceRange ParenOrBraceRange)
|
|
: Expr(SC, Ty, VK_RValue, OK_Ordinary), Constructor(Ctor),
|
|
ParenOrBraceRange(ParenOrBraceRange), NumArgs(Args.size()) {
|
|
CXXConstructExprBits.Elidable = Elidable;
|
|
CXXConstructExprBits.HadMultipleCandidates = HadMultipleCandidates;
|
|
CXXConstructExprBits.ListInitialization = ListInitialization;
|
|
CXXConstructExprBits.StdInitListInitialization = StdInitListInitialization;
|
|
CXXConstructExprBits.ZeroInitialization = ZeroInitialization;
|
|
CXXConstructExprBits.ConstructionKind = ConstructKind;
|
|
CXXConstructExprBits.Loc = Loc;
|
|
|
|
Stmt **TrailingArgs = getTrailingArgs();
|
|
for (unsigned I = 0, N = Args.size(); I != N; ++I) {
|
|
assert(Args[I] && "NULL argument in CXXConstructExpr!");
|
|
TrailingArgs[I] = Args[I];
|
|
}
|
|
|
|
setDependence(computeDependence(this));
|
|
}
|
|
|
|
CXXConstructExpr::CXXConstructExpr(StmtClass SC, EmptyShell Empty,
|
|
unsigned NumArgs)
|
|
: Expr(SC, Empty), NumArgs(NumArgs) {}
|
|
|
|
LambdaCapture::LambdaCapture(SourceLocation Loc, bool Implicit,
|
|
LambdaCaptureKind Kind, VarDecl *Var,
|
|
SourceLocation EllipsisLoc)
|
|
: DeclAndBits(Var, 0), Loc(Loc), EllipsisLoc(EllipsisLoc) {
|
|
unsigned Bits = 0;
|
|
if (Implicit)
|
|
Bits |= Capture_Implicit;
|
|
|
|
switch (Kind) {
|
|
case LCK_StarThis:
|
|
Bits |= Capture_ByCopy;
|
|
LLVM_FALLTHROUGH;
|
|
case LCK_This:
|
|
assert(!Var && "'this' capture cannot have a variable!");
|
|
Bits |= Capture_This;
|
|
break;
|
|
|
|
case LCK_ByCopy:
|
|
Bits |= Capture_ByCopy;
|
|
LLVM_FALLTHROUGH;
|
|
case LCK_ByRef:
|
|
assert(Var && "capture must have a variable!");
|
|
break;
|
|
case LCK_VLAType:
|
|
assert(!Var && "VLA type capture cannot have a variable!");
|
|
break;
|
|
}
|
|
DeclAndBits.setInt(Bits);
|
|
}
|
|
|
|
LambdaCaptureKind LambdaCapture::getCaptureKind() const {
|
|
if (capturesVLAType())
|
|
return LCK_VLAType;
|
|
bool CapByCopy = DeclAndBits.getInt() & Capture_ByCopy;
|
|
if (capturesThis())
|
|
return CapByCopy ? LCK_StarThis : LCK_This;
|
|
return CapByCopy ? LCK_ByCopy : LCK_ByRef;
|
|
}
|
|
|
|
LambdaExpr::LambdaExpr(QualType T, SourceRange IntroducerRange,
|
|
LambdaCaptureDefault CaptureDefault,
|
|
SourceLocation CaptureDefaultLoc, bool ExplicitParams,
|
|
bool ExplicitResultType, ArrayRef<Expr *> CaptureInits,
|
|
SourceLocation ClosingBrace,
|
|
bool ContainsUnexpandedParameterPack)
|
|
: Expr(LambdaExprClass, T, VK_RValue, OK_Ordinary),
|
|
IntroducerRange(IntroducerRange), CaptureDefaultLoc(CaptureDefaultLoc),
|
|
ClosingBrace(ClosingBrace) {
|
|
LambdaExprBits.NumCaptures = CaptureInits.size();
|
|
LambdaExprBits.CaptureDefault = CaptureDefault;
|
|
LambdaExprBits.ExplicitParams = ExplicitParams;
|
|
LambdaExprBits.ExplicitResultType = ExplicitResultType;
|
|
|
|
CXXRecordDecl *Class = getLambdaClass();
|
|
(void)Class;
|
|
assert(capture_size() == Class->capture_size() && "Wrong number of captures");
|
|
assert(getCaptureDefault() == Class->getLambdaCaptureDefault());
|
|
|
|
// Copy initialization expressions for the non-static data members.
|
|
Stmt **Stored = getStoredStmts();
|
|
for (unsigned I = 0, N = CaptureInits.size(); I != N; ++I)
|
|
*Stored++ = CaptureInits[I];
|
|
|
|
// Copy the body of the lambda.
|
|
*Stored++ = getCallOperator()->getBody();
|
|
|
|
setDependence(computeDependence(this, ContainsUnexpandedParameterPack));
|
|
}
|
|
|
|
LambdaExpr::LambdaExpr(EmptyShell Empty, unsigned NumCaptures)
|
|
: Expr(LambdaExprClass, Empty) {
|
|
LambdaExprBits.NumCaptures = NumCaptures;
|
|
|
|
// Initially don't initialize the body of the LambdaExpr. The body will
|
|
// be lazily deserialized when needed.
|
|
getStoredStmts()[NumCaptures] = nullptr; // Not one past the end.
|
|
}
|
|
|
|
LambdaExpr *LambdaExpr::Create(const ASTContext &Context, CXXRecordDecl *Class,
|
|
SourceRange IntroducerRange,
|
|
LambdaCaptureDefault CaptureDefault,
|
|
SourceLocation CaptureDefaultLoc,
|
|
bool ExplicitParams, bool ExplicitResultType,
|
|
ArrayRef<Expr *> CaptureInits,
|
|
SourceLocation ClosingBrace,
|
|
bool ContainsUnexpandedParameterPack) {
|
|
// Determine the type of the expression (i.e., the type of the
|
|
// function object we're creating).
|
|
QualType T = Context.getTypeDeclType(Class);
|
|
|
|
unsigned Size = totalSizeToAlloc<Stmt *>(CaptureInits.size() + 1);
|
|
void *Mem = Context.Allocate(Size);
|
|
return new (Mem)
|
|
LambdaExpr(T, IntroducerRange, CaptureDefault, CaptureDefaultLoc,
|
|
ExplicitParams, ExplicitResultType, CaptureInits, ClosingBrace,
|
|
ContainsUnexpandedParameterPack);
|
|
}
|
|
|
|
LambdaExpr *LambdaExpr::CreateDeserialized(const ASTContext &C,
|
|
unsigned NumCaptures) {
|
|
unsigned Size = totalSizeToAlloc<Stmt *>(NumCaptures + 1);
|
|
void *Mem = C.Allocate(Size);
|
|
return new (Mem) LambdaExpr(EmptyShell(), NumCaptures);
|
|
}
|
|
|
|
void LambdaExpr::initBodyIfNeeded() const {
|
|
if (!getStoredStmts()[capture_size()]) {
|
|
auto *This = const_cast<LambdaExpr *>(this);
|
|
This->getStoredStmts()[capture_size()] = getCallOperator()->getBody();
|
|
}
|
|
}
|
|
|
|
Stmt *LambdaExpr::getBody() const {
|
|
initBodyIfNeeded();
|
|
return getStoredStmts()[capture_size()];
|
|
}
|
|
|
|
const CompoundStmt *LambdaExpr::getCompoundStmtBody() const {
|
|
Stmt *Body = getBody();
|
|
if (const auto *CoroBody = dyn_cast<CoroutineBodyStmt>(Body))
|
|
return cast<CompoundStmt>(CoroBody->getBody());
|
|
return cast<CompoundStmt>(Body);
|
|
}
|
|
|
|
bool LambdaExpr::isInitCapture(const LambdaCapture *C) const {
|
|
return (C->capturesVariable() && C->getCapturedVar()->isInitCapture() &&
|
|
(getCallOperator() == C->getCapturedVar()->getDeclContext()));
|
|
}
|
|
|
|
LambdaExpr::capture_iterator LambdaExpr::capture_begin() const {
|
|
return getLambdaClass()->getLambdaData().Captures;
|
|
}
|
|
|
|
LambdaExpr::capture_iterator LambdaExpr::capture_end() const {
|
|
return capture_begin() + capture_size();
|
|
}
|
|
|
|
LambdaExpr::capture_range LambdaExpr::captures() const {
|
|
return capture_range(capture_begin(), capture_end());
|
|
}
|
|
|
|
LambdaExpr::capture_iterator LambdaExpr::explicit_capture_begin() const {
|
|
return capture_begin();
|
|
}
|
|
|
|
LambdaExpr::capture_iterator LambdaExpr::explicit_capture_end() const {
|
|
struct CXXRecordDecl::LambdaDefinitionData &Data
|
|
= getLambdaClass()->getLambdaData();
|
|
return Data.Captures + Data.NumExplicitCaptures;
|
|
}
|
|
|
|
LambdaExpr::capture_range LambdaExpr::explicit_captures() const {
|
|
return capture_range(explicit_capture_begin(), explicit_capture_end());
|
|
}
|
|
|
|
LambdaExpr::capture_iterator LambdaExpr::implicit_capture_begin() const {
|
|
return explicit_capture_end();
|
|
}
|
|
|
|
LambdaExpr::capture_iterator LambdaExpr::implicit_capture_end() const {
|
|
return capture_end();
|
|
}
|
|
|
|
LambdaExpr::capture_range LambdaExpr::implicit_captures() const {
|
|
return capture_range(implicit_capture_begin(), implicit_capture_end());
|
|
}
|
|
|
|
CXXRecordDecl *LambdaExpr::getLambdaClass() const {
|
|
return getType()->getAsCXXRecordDecl();
|
|
}
|
|
|
|
CXXMethodDecl *LambdaExpr::getCallOperator() const {
|
|
CXXRecordDecl *Record = getLambdaClass();
|
|
return Record->getLambdaCallOperator();
|
|
}
|
|
|
|
FunctionTemplateDecl *LambdaExpr::getDependentCallOperator() const {
|
|
CXXRecordDecl *Record = getLambdaClass();
|
|
return Record->getDependentLambdaCallOperator();
|
|
}
|
|
|
|
TemplateParameterList *LambdaExpr::getTemplateParameterList() const {
|
|
CXXRecordDecl *Record = getLambdaClass();
|
|
return Record->getGenericLambdaTemplateParameterList();
|
|
}
|
|
|
|
ArrayRef<NamedDecl *> LambdaExpr::getExplicitTemplateParameters() const {
|
|
const CXXRecordDecl *Record = getLambdaClass();
|
|
return Record->getLambdaExplicitTemplateParameters();
|
|
}
|
|
|
|
bool LambdaExpr::isMutable() const { return !getCallOperator()->isConst(); }
|
|
|
|
LambdaExpr::child_range LambdaExpr::children() {
|
|
initBodyIfNeeded();
|
|
return child_range(getStoredStmts(), getStoredStmts() + capture_size() + 1);
|
|
}
|
|
|
|
LambdaExpr::const_child_range LambdaExpr::children() const {
|
|
initBodyIfNeeded();
|
|
return const_child_range(getStoredStmts(),
|
|
getStoredStmts() + capture_size() + 1);
|
|
}
|
|
|
|
ExprWithCleanups::ExprWithCleanups(Expr *subexpr,
|
|
bool CleanupsHaveSideEffects,
|
|
ArrayRef<CleanupObject> objects)
|
|
: FullExpr(ExprWithCleanupsClass, subexpr) {
|
|
ExprWithCleanupsBits.CleanupsHaveSideEffects = CleanupsHaveSideEffects;
|
|
ExprWithCleanupsBits.NumObjects = objects.size();
|
|
for (unsigned i = 0, e = objects.size(); i != e; ++i)
|
|
getTrailingObjects<CleanupObject>()[i] = objects[i];
|
|
}
|
|
|
|
ExprWithCleanups *ExprWithCleanups::Create(const ASTContext &C, Expr *subexpr,
|
|
bool CleanupsHaveSideEffects,
|
|
ArrayRef<CleanupObject> objects) {
|
|
void *buffer = C.Allocate(totalSizeToAlloc<CleanupObject>(objects.size()),
|
|
alignof(ExprWithCleanups));
|
|
return new (buffer)
|
|
ExprWithCleanups(subexpr, CleanupsHaveSideEffects, objects);
|
|
}
|
|
|
|
ExprWithCleanups::ExprWithCleanups(EmptyShell empty, unsigned numObjects)
|
|
: FullExpr(ExprWithCleanupsClass, empty) {
|
|
ExprWithCleanupsBits.NumObjects = numObjects;
|
|
}
|
|
|
|
ExprWithCleanups *ExprWithCleanups::Create(const ASTContext &C,
|
|
EmptyShell empty,
|
|
unsigned numObjects) {
|
|
void *buffer = C.Allocate(totalSizeToAlloc<CleanupObject>(numObjects),
|
|
alignof(ExprWithCleanups));
|
|
return new (buffer) ExprWithCleanups(empty, numObjects);
|
|
}
|
|
|
|
CXXUnresolvedConstructExpr::CXXUnresolvedConstructExpr(QualType T,
|
|
TypeSourceInfo *TSI,
|
|
SourceLocation LParenLoc,
|
|
ArrayRef<Expr *> Args,
|
|
SourceLocation RParenLoc)
|
|
: Expr(CXXUnresolvedConstructExprClass, T,
|
|
(TSI->getType()->isLValueReferenceType()
|
|
? VK_LValue
|
|
: TSI->getType()->isRValueReferenceType() ? VK_XValue
|
|
: VK_RValue),
|
|
OK_Ordinary),
|
|
TSI(TSI), LParenLoc(LParenLoc), RParenLoc(RParenLoc) {
|
|
CXXUnresolvedConstructExprBits.NumArgs = Args.size();
|
|
auto **StoredArgs = getTrailingObjects<Expr *>();
|
|
for (unsigned I = 0; I != Args.size(); ++I)
|
|
StoredArgs[I] = Args[I];
|
|
setDependence(computeDependence(this));
|
|
}
|
|
|
|
CXXUnresolvedConstructExpr *CXXUnresolvedConstructExpr::Create(
|
|
const ASTContext &Context, QualType T, TypeSourceInfo *TSI, SourceLocation LParenLoc,
|
|
ArrayRef<Expr *> Args, SourceLocation RParenLoc) {
|
|
void *Mem = Context.Allocate(totalSizeToAlloc<Expr *>(Args.size()));
|
|
return new (Mem)
|
|
CXXUnresolvedConstructExpr(T, TSI, LParenLoc, Args, RParenLoc);
|
|
}
|
|
|
|
CXXUnresolvedConstructExpr *
|
|
CXXUnresolvedConstructExpr::CreateEmpty(const ASTContext &Context,
|
|
unsigned NumArgs) {
|
|
void *Mem = Context.Allocate(totalSizeToAlloc<Expr *>(NumArgs));
|
|
return new (Mem) CXXUnresolvedConstructExpr(EmptyShell(), NumArgs);
|
|
}
|
|
|
|
SourceLocation CXXUnresolvedConstructExpr::getBeginLoc() const {
|
|
return TSI->getTypeLoc().getBeginLoc();
|
|
}
|
|
|
|
CXXDependentScopeMemberExpr::CXXDependentScopeMemberExpr(
|
|
const ASTContext &Ctx, Expr *Base, QualType BaseType, bool IsArrow,
|
|
SourceLocation OperatorLoc, NestedNameSpecifierLoc QualifierLoc,
|
|
SourceLocation TemplateKWLoc, NamedDecl *FirstQualifierFoundInScope,
|
|
DeclarationNameInfo MemberNameInfo,
|
|
const TemplateArgumentListInfo *TemplateArgs)
|
|
: Expr(CXXDependentScopeMemberExprClass, Ctx.DependentTy, VK_LValue,
|
|
OK_Ordinary),
|
|
Base(Base), BaseType(BaseType), QualifierLoc(QualifierLoc),
|
|
MemberNameInfo(MemberNameInfo) {
|
|
CXXDependentScopeMemberExprBits.IsArrow = IsArrow;
|
|
CXXDependentScopeMemberExprBits.HasTemplateKWAndArgsInfo =
|
|
(TemplateArgs != nullptr) || TemplateKWLoc.isValid();
|
|
CXXDependentScopeMemberExprBits.HasFirstQualifierFoundInScope =
|
|
FirstQualifierFoundInScope != nullptr;
|
|
CXXDependentScopeMemberExprBits.OperatorLoc = OperatorLoc;
|
|
|
|
if (TemplateArgs) {
|
|
auto Deps = TemplateArgumentDependence::None;
|
|
getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
|
|
TemplateKWLoc, *TemplateArgs, getTrailingObjects<TemplateArgumentLoc>(),
|
|
Deps);
|
|
} else if (TemplateKWLoc.isValid()) {
|
|
getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
|
|
TemplateKWLoc);
|
|
}
|
|
|
|
if (hasFirstQualifierFoundInScope())
|
|
*getTrailingObjects<NamedDecl *>() = FirstQualifierFoundInScope;
|
|
setDependence(computeDependence(this));
|
|
}
|
|
|
|
CXXDependentScopeMemberExpr::CXXDependentScopeMemberExpr(
|
|
EmptyShell Empty, bool HasTemplateKWAndArgsInfo,
|
|
bool HasFirstQualifierFoundInScope)
|
|
: Expr(CXXDependentScopeMemberExprClass, Empty) {
|
|
CXXDependentScopeMemberExprBits.HasTemplateKWAndArgsInfo =
|
|
HasTemplateKWAndArgsInfo;
|
|
CXXDependentScopeMemberExprBits.HasFirstQualifierFoundInScope =
|
|
HasFirstQualifierFoundInScope;
|
|
}
|
|
|
|
CXXDependentScopeMemberExpr *CXXDependentScopeMemberExpr::Create(
|
|
const ASTContext &Ctx, Expr *Base, QualType BaseType, bool IsArrow,
|
|
SourceLocation OperatorLoc, NestedNameSpecifierLoc QualifierLoc,
|
|
SourceLocation TemplateKWLoc, NamedDecl *FirstQualifierFoundInScope,
|
|
DeclarationNameInfo MemberNameInfo,
|
|
const TemplateArgumentListInfo *TemplateArgs) {
|
|
bool HasTemplateKWAndArgsInfo =
|
|
(TemplateArgs != nullptr) || TemplateKWLoc.isValid();
|
|
unsigned NumTemplateArgs = TemplateArgs ? TemplateArgs->size() : 0;
|
|
bool HasFirstQualifierFoundInScope = FirstQualifierFoundInScope != nullptr;
|
|
|
|
unsigned Size = totalSizeToAlloc<ASTTemplateKWAndArgsInfo,
|
|
TemplateArgumentLoc, NamedDecl *>(
|
|
HasTemplateKWAndArgsInfo, NumTemplateArgs, HasFirstQualifierFoundInScope);
|
|
|
|
void *Mem = Ctx.Allocate(Size, alignof(CXXDependentScopeMemberExpr));
|
|
return new (Mem) CXXDependentScopeMemberExpr(
|
|
Ctx, Base, BaseType, IsArrow, OperatorLoc, QualifierLoc, TemplateKWLoc,
|
|
FirstQualifierFoundInScope, MemberNameInfo, TemplateArgs);
|
|
}
|
|
|
|
CXXDependentScopeMemberExpr *CXXDependentScopeMemberExpr::CreateEmpty(
|
|
const ASTContext &Ctx, bool HasTemplateKWAndArgsInfo,
|
|
unsigned NumTemplateArgs, bool HasFirstQualifierFoundInScope) {
|
|
assert(NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo);
|
|
|
|
unsigned Size = totalSizeToAlloc<ASTTemplateKWAndArgsInfo,
|
|
TemplateArgumentLoc, NamedDecl *>(
|
|
HasTemplateKWAndArgsInfo, NumTemplateArgs, HasFirstQualifierFoundInScope);
|
|
|
|
void *Mem = Ctx.Allocate(Size, alignof(CXXDependentScopeMemberExpr));
|
|
return new (Mem) CXXDependentScopeMemberExpr(
|
|
EmptyShell(), HasTemplateKWAndArgsInfo, HasFirstQualifierFoundInScope);
|
|
}
|
|
|
|
static bool hasOnlyNonStaticMemberFunctions(UnresolvedSetIterator begin,
|
|
UnresolvedSetIterator end) {
|
|
do {
|
|
NamedDecl *decl = *begin;
|
|
if (isa<UnresolvedUsingValueDecl>(decl))
|
|
return false;
|
|
|
|
// Unresolved member expressions should only contain methods and
|
|
// method templates.
|
|
if (cast<CXXMethodDecl>(decl->getUnderlyingDecl()->getAsFunction())
|
|
->isStatic())
|
|
return false;
|
|
} while (++begin != end);
|
|
|
|
return true;
|
|
}
|
|
|
|
UnresolvedMemberExpr::UnresolvedMemberExpr(
|
|
const ASTContext &Context, bool HasUnresolvedUsing, Expr *Base,
|
|
QualType BaseType, bool IsArrow, SourceLocation OperatorLoc,
|
|
NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc,
|
|
const DeclarationNameInfo &MemberNameInfo,
|
|
const TemplateArgumentListInfo *TemplateArgs, UnresolvedSetIterator Begin,
|
|
UnresolvedSetIterator End)
|
|
: OverloadExpr(
|
|
UnresolvedMemberExprClass, Context, QualifierLoc, TemplateKWLoc,
|
|
MemberNameInfo, TemplateArgs, Begin, End,
|
|
// Dependent
|
|
((Base && Base->isTypeDependent()) || BaseType->isDependentType()),
|
|
((Base && Base->isInstantiationDependent()) ||
|
|
BaseType->isInstantiationDependentType()),
|
|
// Contains unexpanded parameter pack
|
|
((Base && Base->containsUnexpandedParameterPack()) ||
|
|
BaseType->containsUnexpandedParameterPack())),
|
|
Base(Base), BaseType(BaseType), OperatorLoc(OperatorLoc) {
|
|
UnresolvedMemberExprBits.IsArrow = IsArrow;
|
|
UnresolvedMemberExprBits.HasUnresolvedUsing = HasUnresolvedUsing;
|
|
|
|
// Check whether all of the members are non-static member functions,
|
|
// and if so, mark give this bound-member type instead of overload type.
|
|
if (hasOnlyNonStaticMemberFunctions(Begin, End))
|
|
setType(Context.BoundMemberTy);
|
|
}
|
|
|
|
UnresolvedMemberExpr::UnresolvedMemberExpr(EmptyShell Empty,
|
|
unsigned NumResults,
|
|
bool HasTemplateKWAndArgsInfo)
|
|
: OverloadExpr(UnresolvedMemberExprClass, Empty, NumResults,
|
|
HasTemplateKWAndArgsInfo) {}
|
|
|
|
bool UnresolvedMemberExpr::isImplicitAccess() const {
|
|
if (!Base)
|
|
return true;
|
|
|
|
return cast<Expr>(Base)->isImplicitCXXThis();
|
|
}
|
|
|
|
UnresolvedMemberExpr *UnresolvedMemberExpr::Create(
|
|
const ASTContext &Context, bool HasUnresolvedUsing, Expr *Base,
|
|
QualType BaseType, bool IsArrow, SourceLocation OperatorLoc,
|
|
NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc,
|
|
const DeclarationNameInfo &MemberNameInfo,
|
|
const TemplateArgumentListInfo *TemplateArgs, UnresolvedSetIterator Begin,
|
|
UnresolvedSetIterator End) {
|
|
unsigned NumResults = End - Begin;
|
|
bool HasTemplateKWAndArgsInfo = TemplateArgs || TemplateKWLoc.isValid();
|
|
unsigned NumTemplateArgs = TemplateArgs ? TemplateArgs->size() : 0;
|
|
unsigned Size = totalSizeToAlloc<DeclAccessPair, ASTTemplateKWAndArgsInfo,
|
|
TemplateArgumentLoc>(
|
|
NumResults, HasTemplateKWAndArgsInfo, NumTemplateArgs);
|
|
void *Mem = Context.Allocate(Size, alignof(UnresolvedMemberExpr));
|
|
return new (Mem) UnresolvedMemberExpr(
|
|
Context, HasUnresolvedUsing, Base, BaseType, IsArrow, OperatorLoc,
|
|
QualifierLoc, TemplateKWLoc, MemberNameInfo, TemplateArgs, Begin, End);
|
|
}
|
|
|
|
UnresolvedMemberExpr *UnresolvedMemberExpr::CreateEmpty(
|
|
const ASTContext &Context, unsigned NumResults,
|
|
bool HasTemplateKWAndArgsInfo, unsigned NumTemplateArgs) {
|
|
assert(NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo);
|
|
unsigned Size = totalSizeToAlloc<DeclAccessPair, ASTTemplateKWAndArgsInfo,
|
|
TemplateArgumentLoc>(
|
|
NumResults, HasTemplateKWAndArgsInfo, NumTemplateArgs);
|
|
void *Mem = Context.Allocate(Size, alignof(UnresolvedMemberExpr));
|
|
return new (Mem)
|
|
UnresolvedMemberExpr(EmptyShell(), NumResults, HasTemplateKWAndArgsInfo);
|
|
}
|
|
|
|
CXXRecordDecl *UnresolvedMemberExpr::getNamingClass() {
|
|
// Unlike for UnresolvedLookupExpr, it is very easy to re-derive this.
|
|
|
|
// If there was a nested name specifier, it names the naming class.
|
|
// It can't be dependent: after all, we were actually able to do the
|
|
// lookup.
|
|
CXXRecordDecl *Record = nullptr;
|
|
auto *NNS = getQualifier();
|
|
if (NNS && NNS->getKind() != NestedNameSpecifier::Super) {
|
|
const Type *T = getQualifier()->getAsType();
|
|
assert(T && "qualifier in member expression does not name type");
|
|
Record = T->getAsCXXRecordDecl();
|
|
assert(Record && "qualifier in member expression does not name record");
|
|
}
|
|
// Otherwise the naming class must have been the base class.
|
|
else {
|
|
QualType BaseType = getBaseType().getNonReferenceType();
|
|
if (isArrow())
|
|
BaseType = BaseType->castAs<PointerType>()->getPointeeType();
|
|
|
|
Record = BaseType->getAsCXXRecordDecl();
|
|
assert(Record && "base of member expression does not name record");
|
|
}
|
|
|
|
return Record;
|
|
}
|
|
|
|
SizeOfPackExpr *
|
|
SizeOfPackExpr::Create(ASTContext &Context, SourceLocation OperatorLoc,
|
|
NamedDecl *Pack, SourceLocation PackLoc,
|
|
SourceLocation RParenLoc,
|
|
Optional<unsigned> Length,
|
|
ArrayRef<TemplateArgument> PartialArgs) {
|
|
void *Storage =
|
|
Context.Allocate(totalSizeToAlloc<TemplateArgument>(PartialArgs.size()));
|
|
return new (Storage) SizeOfPackExpr(Context.getSizeType(), OperatorLoc, Pack,
|
|
PackLoc, RParenLoc, Length, PartialArgs);
|
|
}
|
|
|
|
SizeOfPackExpr *SizeOfPackExpr::CreateDeserialized(ASTContext &Context,
|
|
unsigned NumPartialArgs) {
|
|
void *Storage =
|
|
Context.Allocate(totalSizeToAlloc<TemplateArgument>(NumPartialArgs));
|
|
return new (Storage) SizeOfPackExpr(EmptyShell(), NumPartialArgs);
|
|
}
|
|
|
|
QualType SubstNonTypeTemplateParmExpr::getParameterType(
|
|
const ASTContext &Context) const {
|
|
// Note that, for a class type NTTP, we will have an lvalue of type 'const
|
|
// T', so we can't just compute this from the type and value category.
|
|
if (isReferenceParameter())
|
|
return Context.getLValueReferenceType(getType());
|
|
return getType().getUnqualifiedType();
|
|
}
|
|
|
|
SubstNonTypeTemplateParmPackExpr::SubstNonTypeTemplateParmPackExpr(
|
|
QualType T, ExprValueKind ValueKind, NonTypeTemplateParmDecl *Param,
|
|
SourceLocation NameLoc, const TemplateArgument &ArgPack)
|
|
: Expr(SubstNonTypeTemplateParmPackExprClass, T, ValueKind, OK_Ordinary),
|
|
Param(Param), Arguments(ArgPack.pack_begin()),
|
|
NumArguments(ArgPack.pack_size()), NameLoc(NameLoc) {
|
|
setDependence(ExprDependence::TypeValueInstantiation |
|
|
ExprDependence::UnexpandedPack);
|
|
}
|
|
|
|
TemplateArgument SubstNonTypeTemplateParmPackExpr::getArgumentPack() const {
|
|
return TemplateArgument(llvm::makeArrayRef(Arguments, NumArguments));
|
|
}
|
|
|
|
FunctionParmPackExpr::FunctionParmPackExpr(QualType T, VarDecl *ParamPack,
|
|
SourceLocation NameLoc,
|
|
unsigned NumParams,
|
|
VarDecl *const *Params)
|
|
: Expr(FunctionParmPackExprClass, T, VK_LValue, OK_Ordinary),
|
|
ParamPack(ParamPack), NameLoc(NameLoc), NumParameters(NumParams) {
|
|
if (Params)
|
|
std::uninitialized_copy(Params, Params + NumParams,
|
|
getTrailingObjects<VarDecl *>());
|
|
setDependence(ExprDependence::TypeValueInstantiation |
|
|
ExprDependence::UnexpandedPack);
|
|
}
|
|
|
|
FunctionParmPackExpr *
|
|
FunctionParmPackExpr::Create(const ASTContext &Context, QualType T,
|
|
VarDecl *ParamPack, SourceLocation NameLoc,
|
|
ArrayRef<VarDecl *> Params) {
|
|
return new (Context.Allocate(totalSizeToAlloc<VarDecl *>(Params.size())))
|
|
FunctionParmPackExpr(T, ParamPack, NameLoc, Params.size(), Params.data());
|
|
}
|
|
|
|
FunctionParmPackExpr *
|
|
FunctionParmPackExpr::CreateEmpty(const ASTContext &Context,
|
|
unsigned NumParams) {
|
|
return new (Context.Allocate(totalSizeToAlloc<VarDecl *>(NumParams)))
|
|
FunctionParmPackExpr(QualType(), nullptr, SourceLocation(), 0, nullptr);
|
|
}
|
|
|
|
MaterializeTemporaryExpr::MaterializeTemporaryExpr(
|
|
QualType T, Expr *Temporary, bool BoundToLvalueReference,
|
|
LifetimeExtendedTemporaryDecl *MTD)
|
|
: Expr(MaterializeTemporaryExprClass, T,
|
|
BoundToLvalueReference ? VK_LValue : VK_XValue, OK_Ordinary) {
|
|
if (MTD) {
|
|
State = MTD;
|
|
MTD->ExprWithTemporary = Temporary;
|
|
return;
|
|
}
|
|
State = Temporary;
|
|
setDependence(computeDependence(this));
|
|
}
|
|
|
|
void MaterializeTemporaryExpr::setExtendingDecl(ValueDecl *ExtendedBy,
|
|
unsigned ManglingNumber) {
|
|
// We only need extra state if we have to remember more than just the Stmt.
|
|
if (!ExtendedBy)
|
|
return;
|
|
|
|
// We may need to allocate extra storage for the mangling number and the
|
|
// extended-by ValueDecl.
|
|
if (!State.is<LifetimeExtendedTemporaryDecl *>())
|
|
State = LifetimeExtendedTemporaryDecl::Create(
|
|
cast<Expr>(State.get<Stmt *>()), ExtendedBy, ManglingNumber);
|
|
|
|
auto ES = State.get<LifetimeExtendedTemporaryDecl *>();
|
|
ES->ExtendingDecl = ExtendedBy;
|
|
ES->ManglingNumber = ManglingNumber;
|
|
}
|
|
|
|
bool MaterializeTemporaryExpr::isUsableInConstantExpressions(
|
|
const ASTContext &Context) const {
|
|
// C++20 [expr.const]p4:
|
|
// An object or reference is usable in constant expressions if it is [...]
|
|
// a temporary object of non-volatile const-qualified literal type
|
|
// whose lifetime is extended to that of a variable that is usable
|
|
// in constant expressions
|
|
auto *VD = dyn_cast_or_null<VarDecl>(getExtendingDecl());
|
|
return VD && getType().isConstant(Context) &&
|
|
!getType().isVolatileQualified() &&
|
|
getType()->isLiteralType(Context) &&
|
|
VD->isUsableInConstantExpressions(Context);
|
|
}
|
|
|
|
TypeTraitExpr::TypeTraitExpr(QualType T, SourceLocation Loc, TypeTrait Kind,
|
|
ArrayRef<TypeSourceInfo *> Args,
|
|
SourceLocation RParenLoc, bool Value)
|
|
: Expr(TypeTraitExprClass, T, VK_RValue, OK_Ordinary), Loc(Loc),
|
|
RParenLoc(RParenLoc) {
|
|
assert(Kind <= TT_Last && "invalid enum value!");
|
|
TypeTraitExprBits.Kind = Kind;
|
|
assert(static_cast<unsigned>(Kind) == TypeTraitExprBits.Kind &&
|
|
"TypeTraitExprBits.Kind overflow!");
|
|
TypeTraitExprBits.Value = Value;
|
|
TypeTraitExprBits.NumArgs = Args.size();
|
|
assert(Args.size() == TypeTraitExprBits.NumArgs &&
|
|
"TypeTraitExprBits.NumArgs overflow!");
|
|
|
|
auto **ToArgs = getTrailingObjects<TypeSourceInfo *>();
|
|
for (unsigned I = 0, N = Args.size(); I != N; ++I)
|
|
ToArgs[I] = Args[I];
|
|
|
|
setDependence(computeDependence(this));
|
|
}
|
|
|
|
TypeTraitExpr *TypeTraitExpr::Create(const ASTContext &C, QualType T,
|
|
SourceLocation Loc,
|
|
TypeTrait Kind,
|
|
ArrayRef<TypeSourceInfo *> Args,
|
|
SourceLocation RParenLoc,
|
|
bool Value) {
|
|
void *Mem = C.Allocate(totalSizeToAlloc<TypeSourceInfo *>(Args.size()));
|
|
return new (Mem) TypeTraitExpr(T, Loc, Kind, Args, RParenLoc, Value);
|
|
}
|
|
|
|
TypeTraitExpr *TypeTraitExpr::CreateDeserialized(const ASTContext &C,
|
|
unsigned NumArgs) {
|
|
void *Mem = C.Allocate(totalSizeToAlloc<TypeSourceInfo *>(NumArgs));
|
|
return new (Mem) TypeTraitExpr(EmptyShell());
|
|
}
|
|
|
|
CUDAKernelCallExpr::CUDAKernelCallExpr(Expr *Fn, CallExpr *Config,
|
|
ArrayRef<Expr *> Args, QualType Ty,
|
|
ExprValueKind VK, SourceLocation RP,
|
|
FPOptionsOverride FPFeatures,
|
|
unsigned MinNumArgs)
|
|
: CallExpr(CUDAKernelCallExprClass, Fn, /*PreArgs=*/Config, Args, Ty, VK,
|
|
RP, FPFeatures, MinNumArgs, NotADL) {}
|
|
|
|
CUDAKernelCallExpr::CUDAKernelCallExpr(unsigned NumArgs, bool HasFPFeatures,
|
|
EmptyShell Empty)
|
|
: CallExpr(CUDAKernelCallExprClass, /*NumPreArgs=*/END_PREARG, NumArgs,
|
|
HasFPFeatures, Empty) {}
|
|
|
|
CUDAKernelCallExpr *
|
|
CUDAKernelCallExpr::Create(const ASTContext &Ctx, Expr *Fn, CallExpr *Config,
|
|
ArrayRef<Expr *> Args, QualType Ty, ExprValueKind VK,
|
|
SourceLocation RP, FPOptionsOverride FPFeatures,
|
|
unsigned MinNumArgs) {
|
|
// Allocate storage for the trailing objects of CallExpr.
|
|
unsigned NumArgs = std::max<unsigned>(Args.size(), MinNumArgs);
|
|
unsigned SizeOfTrailingObjects = CallExpr::sizeOfTrailingObjects(
|
|
/*NumPreArgs=*/END_PREARG, NumArgs, FPFeatures.requiresTrailingStorage());
|
|
void *Mem = Ctx.Allocate(sizeof(CUDAKernelCallExpr) + SizeOfTrailingObjects,
|
|
alignof(CUDAKernelCallExpr));
|
|
return new (Mem)
|
|
CUDAKernelCallExpr(Fn, Config, Args, Ty, VK, RP, FPFeatures, MinNumArgs);
|
|
}
|
|
|
|
CUDAKernelCallExpr *CUDAKernelCallExpr::CreateEmpty(const ASTContext &Ctx,
|
|
unsigned NumArgs,
|
|
bool HasFPFeatures,
|
|
EmptyShell Empty) {
|
|
// Allocate storage for the trailing objects of CallExpr.
|
|
unsigned SizeOfTrailingObjects = CallExpr::sizeOfTrailingObjects(
|
|
/*NumPreArgs=*/END_PREARG, NumArgs, HasFPFeatures);
|
|
void *Mem = Ctx.Allocate(sizeof(CUDAKernelCallExpr) + SizeOfTrailingObjects,
|
|
alignof(CUDAKernelCallExpr));
|
|
return new (Mem) CUDAKernelCallExpr(NumArgs, HasFPFeatures, Empty);
|
|
}
|