Refactor the template-instantiation logic for expressions into a
generic tree transformation (also used for recanonicalization) and a
small amount of template-instantiation-specific logic.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78645 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/TreeTransform.h b/lib/Sema/TreeTransform.h
index c935f81..eb61cc5 100644
--- a/lib/Sema/TreeTransform.h
+++ b/lib/Sema/TreeTransform.h
@@ -16,6 +16,11 @@
#include "Sema.h"
#include "clang/Sema/SemaDiagnostic.h"
#include "clang/AST/Expr.h"
+#include "clang/AST/ExprCXX.h"
+#include "clang/AST/ExprObjC.h"
+#include "clang/Parse/Ownership.h"
+#include "clang/Parse/Designator.h"
+#include "clang/Lex/Preprocessor.h"
#include <algorithm>
namespace clang {
@@ -80,6 +85,12 @@
Sema &SemaRef;
public:
+ typedef Sema::OwningStmtResult OwningStmtResult;
+ typedef Sema::OwningExprResult OwningExprResult;
+ typedef Sema::StmtArg StmtArg;
+ typedef Sema::ExprArg ExprArg;
+ typedef Sema::MultiExprArg MultiExprArg;
+
/// \brief Initializes a new tree transformer.
TreeTransform(Sema &SemaRef) : SemaRef(SemaRef) { }
@@ -117,6 +128,34 @@
/// implementation with a more precise name.
DeclarationName getBaseEntity() { return DeclarationName(); }
+ /// \brief Sets the "base" location and entity when that
+ /// information is known based on another transformation.
+ ///
+ /// By default, the source location and entity are ignored. Subclasses can
+ /// override this function to provide a customized implementation.
+ void setBase(SourceLocation Loc, DeclarationName Entity) { }
+
+ /// \brief RAII object that temporarily sets the base location and entity
+ /// used for reporting diagnostics in types.
+ class TemporaryBase {
+ TreeTransform &Self;
+ SourceLocation OldLocation;
+ DeclarationName OldEntity;
+
+ public:
+ TemporaryBase(TreeTransform &Self, SourceLocation Location,
+ DeclarationName Entity) : Self(Self)
+ {
+ OldLocation = Self.getDerived().getBaseLocation();
+ OldEntity = Self.getDerived().getBaseEntity();
+ Self.getDerived().setBase(Location, Entity);
+ }
+
+ ~TemporaryBase() {
+ Self.getDerived().setBase(OldLocation, OldEntity);
+ }
+ };
+
/// \brief Determine whether the given type \p T has already been
/// transformed.
///
@@ -153,14 +192,29 @@
/// \brief Transform the given statement.
///
/// FIXME: At the moment, subclasses must override this.
- Sema::OwningStmtResult TransformStmt(Stmt *S);
+ OwningStmtResult TransformStmt(Stmt *S);
/// \brief Transform the given expression.
///
- /// By default, invokes the derived class's TransformStmt() and downcasts
- /// the result. Subclasses may override this function to provide alternate
- /// behavior.
- Sema::OwningExprResult TransformExpr(Expr *E);
+ /// By default, this routine transforms an expression by delegating to the
+ /// appropriate TransformXXXExpr function to build a new expression.
+ /// Subclasses may override this function to transform expressions using some
+ /// other mechanism.
+ ///
+ /// \returns the transformed expression.
+ OwningExprResult TransformExpr(Expr *E) {
+ return getDerived().TransformExpr(E, /*isAddressOfOperand=*/false);
+ }
+
+ /// \brief Transform the given expression.
+ ///
+ /// By default, this routine transforms an expression by delegating to the
+ /// appropriate TransformXXXExpr function to build a new expression.
+ /// Subclasses may override this function to transform expressions using some
+ /// other mechanism.
+ ///
+ /// \returns the transformed expression.
+ OwningExprResult TransformExpr(Expr *E, bool isAddressOfOperand);
/// \brief Transform the given declaration, which is referenced from a type
/// or expression.
@@ -197,6 +251,17 @@
QualType Transform##CLASS##Type(const CLASS##Type *T);
#include "clang/AST/TypeNodes.def"
+ OwningStmtResult TransformCompoundStmt(Stmt *S, bool IsStmtExpr) {
+ // FIXME: Actually handle this transformation properly.
+ return getDerived().TransformStmt(S);
+ }
+
+#define STMT(Node, Parent)
+#define EXPR(Node, Parent) \
+ OwningExprResult Transform##Node(Node *E);
+#define ABSTRACT_EXPR(Node, Parent)
+#include "clang/AST/StmtNodes.def"
+
/// \brief Build a new pointer type given its pointee type.
///
/// By default, performs semantic analysis when building the pointer type.
@@ -291,7 +356,7 @@
/// Subclasses may override this routine to provide different behavior.
QualType RebuildVariableArrayType(QualType ElementType,
ArrayType::ArraySizeModifier SizeMod,
- Sema::ExprArg SizeExpr,
+ ExprArg SizeExpr,
unsigned IndexTypeQuals,
SourceRange BracketsRange);
@@ -302,7 +367,7 @@
/// Subclasses may override this routine to provide different behavior.
QualType RebuildDependentSizedArrayType(QualType ElementType,
ArrayType::ArraySizeModifier SizeMod,
- Sema::ExprArg SizeExpr,
+ ExprArg SizeExpr,
unsigned IndexTypeQuals,
SourceRange BracketsRange);
@@ -327,7 +392,7 @@
/// By default, performs semantic analysis when building the vector type.
/// Subclasses may override this routine to provide different behavior.
QualType RebuildDependentSizedExtVectorType(QualType ElementType,
- Sema::ExprArg SizeExpr,
+ ExprArg SizeExpr,
SourceLocation AttributeLoc);
/// \brief Build a new function type.
@@ -358,7 +423,7 @@
///
/// By default, performs semantic analysis when building the typeof type.
/// Subclasses may override this routine to provide different behavior.
- QualType RebuildTypeOfExprType(Sema::ExprArg Underlying);
+ QualType RebuildTypeOfExprType(ExprArg Underlying);
/// \brief Build a new typeof(type) type.
///
@@ -369,7 +434,7 @@
///
/// By default, performs semantic analysis when building the decltype type.
/// Subclasses may override this routine to provide different behavior.
- QualType RebuildDecltypeType(Sema::ExprArg Underlying);
+ QualType RebuildDecltypeType(ExprArg Underlying);
/// \brief Build a new template specialization type.
///
@@ -473,15 +538,795 @@
/// behavior.
TemplateName RebuildTemplateName(NestedNameSpecifier *Qualifier,
const IdentifierInfo &II);
+
+
+ /// \brief Build a new expression that references a declaration.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildDeclRefExpr(NamedDecl *ND, SourceLocation Loc) {
+ return getSema().BuildDeclarationNameExpr(Loc, ND,
+ /*FIXME:*/false,
+ /*SS=*/0,
+ /*FIXME:*/false);
+ }
+
+ /// \brief Build a new expression in parentheses.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildParenExpr(ExprArg SubExpr, SourceLocation LParen,
+ SourceLocation RParen) {
+ return getSema().ActOnParenExpr(LParen, RParen, move(SubExpr));
+ }
+
+ /// \brief Build a new unary operator expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildUnaryOperator(SourceLocation OpLoc,
+ UnaryOperator::Opcode Opc,
+ ExprArg SubExpr) {
+ return getSema().CreateBuiltinUnaryOp(OpLoc, Opc, move(SubExpr));
+ }
+
+ /// \brief Build a new sizeof or alignof expression with a type argument.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildSizeOfAlignOf(QualType T, SourceLocation OpLoc,
+ bool isSizeOf, SourceRange R) {
+ return getSema().CreateSizeOfAlignOfExpr(T, OpLoc, isSizeOf, R);
+ }
+
+ /// \brief Build a new sizeof or alignof expression with an expression
+ /// argument.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildSizeOfAlignOf(ExprArg SubExpr, SourceLocation OpLoc,
+ bool isSizeOf, SourceRange R) {
+ OwningExprResult Result
+ = getSema().CreateSizeOfAlignOfExpr((Expr *)SubExpr.get(),
+ OpLoc, isSizeOf, R);
+ if (Result.isInvalid())
+ return getSema().ExprError();
+
+ SubExpr.release();
+ return move(Result);
+ }
+
+ /// \brief Build a new array subscript expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildArraySubscriptExpr(ExprArg LHS,
+ SourceLocation LBracketLoc,
+ ExprArg RHS,
+ SourceLocation RBracketLoc) {
+ return getSema().ActOnArraySubscriptExpr(/*Scope=*/0, move(LHS),
+ LBracketLoc, move(RHS),
+ RBracketLoc);
+ }
+
+ /// \brief Build a new call expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCallExpr(ExprArg Callee, SourceLocation LParenLoc,
+ MultiExprArg Args,
+ SourceLocation *CommaLocs,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnCallExpr(/*Scope=*/0, move(Callee), LParenLoc,
+ move(Args), CommaLocs, RParenLoc);
+ }
+
+ /// \brief Build a new member access expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildMemberExpr(ExprArg Base, SourceLocation OpLoc,
+ bool isArrow, SourceLocation MemberLoc,
+ NamedDecl *Member) {
+ return getSema().ActOnMemberReferenceExpr(/*Scope=*/0, move(Base), OpLoc,
+ isArrow? tok::arrow : tok::period,
+ MemberLoc,
+ /*FIXME*/*Member->getIdentifier(),
+ /*FIXME?*/Sema::DeclPtrTy::make((Decl*)0));
+ }
+
+ /// \brief Build a new binary operator expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildBinaryOperator(SourceLocation OpLoc,
+ BinaryOperator::Opcode Opc,
+ ExprArg LHS, ExprArg RHS) {
+ OwningExprResult Result
+ = getSema().CreateBuiltinBinOp(OpLoc, Opc, (Expr *)LHS.get(),
+ (Expr *)RHS.get());
+ if (Result.isInvalid())
+ return SemaRef.ExprError();
+
+ LHS.release();
+ RHS.release();
+ return move(Result);
+ }
+
+ /// \brief Build a new conditional operator expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildConditionalOperator(ExprArg Cond,
+ SourceLocation QuestionLoc,
+ ExprArg LHS,
+ SourceLocation ColonLoc,
+ ExprArg RHS) {
+ return getSema().ActOnConditionalOp(QuestionLoc, ColonLoc, move(Cond),
+ move(LHS), move(RHS));
+ }
+
+ /// \brief Build a new implicit cast expression.
+ ///
+ /// By default, builds a new implicit cast without any semantic analysis.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildImplicitCastExpr(QualType T, CastExpr::CastKind Kind,
+ ExprArg SubExpr, bool isLvalue) {
+ ImplicitCastExpr *ICE
+ = new (getSema().Context) ImplicitCastExpr(T, Kind,
+ (Expr *)SubExpr.release(),
+ isLvalue);
+ return getSema().Owned(ICE);
+ }
+
+ /// \brief Build a new C-style cast expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCStyleCaseExpr(SourceLocation LParenLoc,
+ QualType ExplicitTy,
+ SourceLocation RParenLoc,
+ ExprArg SubExpr) {
+ return getSema().ActOnCastExpr(/*Scope=*/0,
+ LParenLoc,
+ ExplicitTy.getAsOpaquePtr(),
+ RParenLoc,
+ move(SubExpr));
+ }
+
+ /// \brief Build a new compound literal expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCompoundLiteralExpr(SourceLocation LParenLoc,
+ QualType T,
+ SourceLocation RParenLoc,
+ ExprArg Init) {
+ return getSema().ActOnCompoundLiteral(LParenLoc, T.getAsOpaquePtr(),
+ RParenLoc, move(Init));
+ }
+
+ /// \brief Build a new extended vector element access expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildExtVectorElementExpr(ExprArg Base,
+ SourceLocation OpLoc,
+ SourceLocation AccessorLoc,
+ IdentifierInfo &Accessor) {
+ return getSema().ActOnMemberReferenceExpr(/*Scope=*/0, move(Base), OpLoc,
+ tok::period, AccessorLoc,
+ Accessor,
+ /*FIXME?*/Sema::DeclPtrTy::make((Decl*)0));
+ }
+
+ /// \brief Build a new initializer list expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildInitList(SourceLocation LBraceLoc,
+ MultiExprArg Inits,
+ SourceLocation RBraceLoc) {
+ return SemaRef.ActOnInitList(LBraceLoc, move(Inits), RBraceLoc);
+ }
+
+ /// \brief Build a new designated initializer expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildDesignatedInitExpr(Designation &Desig,
+ MultiExprArg ArrayExprs,
+ SourceLocation EqualOrColonLoc,
+ bool GNUSyntax,
+ ExprArg Init) {
+ OwningExprResult Result
+ = SemaRef.ActOnDesignatedInitializer(Desig, EqualOrColonLoc, GNUSyntax,
+ move(Init));
+ if (Result.isInvalid())
+ return SemaRef.ExprError();
+
+ ArrayExprs.release();
+ return move(Result);
+ }
+
+ /// \brief Build a new value-initialized expression.
+ ///
+ /// By default, builds the implicit value initialization without performing
+ /// any semantic analysis. Subclasses may override this routine to provide
+ /// different behavior.
+ OwningExprResult RebuildImplicitValueInitExpr(QualType T) {
+ return SemaRef.Owned(new (SemaRef.Context) ImplicitValueInitExpr(T));
+ }
+
+ /// \brief Build a new \c va_arg expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildVAArgExpr(SourceLocation BuiltinLoc, ExprArg SubExpr,
+ QualType T, SourceLocation RParenLoc) {
+ return getSema().ActOnVAArg(BuiltinLoc, move(SubExpr), T.getAsOpaquePtr(),
+ RParenLoc);
+ }
+
+ /// \brief Build a new expression list in parentheses.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildParenListExpr(SourceLocation LParenLoc,
+ MultiExprArg SubExprs,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnParenListExpr(LParenLoc, RParenLoc, move(SubExprs));
+ }
+
+ /// \brief Build a new address-of-label expression.
+ ///
+ /// By default, performs semantic analysis, using the name of the label
+ /// rather than attempting to map the label statement itself.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildAddrLabelExpr(SourceLocation AmpAmpLoc,
+ SourceLocation LabelLoc,
+ LabelStmt *Label) {
+ return getSema().ActOnAddrLabel(AmpAmpLoc, LabelLoc, Label->getID());
+ }
+
+ /// \brief Build a new GNU statement expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildStmtExpr(SourceLocation LParenLoc,
+ StmtArg SubStmt,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnStmtExpr(LParenLoc, move(SubStmt), RParenLoc);
+ }
+
+ /// \brief Build a new __builtin_types_compatible_p expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildTypesCompatibleExpr(SourceLocation BuiltinLoc,
+ QualType T1, QualType T2,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnTypesCompatibleExpr(BuiltinLoc,
+ T1.getAsOpaquePtr(),
+ T2.getAsOpaquePtr(),
+ RParenLoc);
+ }
+
+ /// \brief Build a new __builtin_choose_expr expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildChooseExpr(SourceLocation BuiltinLoc,
+ ExprArg Cond, ExprArg LHS, ExprArg RHS,
+ SourceLocation RParenLoc) {
+ return SemaRef.ActOnChooseExpr(BuiltinLoc,
+ move(Cond), move(LHS), move(RHS),
+ RParenLoc);
+ }
+
+ /// \brief Build a new overloaded operator call expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// The semantic analysis provides the behavior of template instantiation,
+ /// copying with transformations that turn what looks like an overloaded
+ /// operator call into a use of a builtin operator, performing
+ /// argument-dependent lookup, etc. Subclasses may override this routine to
+ /// provide different behavior.
+ OwningExprResult RebuildCXXOperatorCallExpr(OverloadedOperatorKind Op,
+ SourceLocation OpLoc,
+ ExprArg Callee,
+ ExprArg First,
+ ExprArg Second);
+
+ /// \brief Build a new C++ "named" cast expression, such as static_cast or
+ /// reinterpret_cast.
+ ///
+ /// By default, this routine dispatches to one of the more-specific routines
+ /// for a particular named case, e.g., RebuildCXXStaticCastExpr().
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXNamedCastExpr(SourceLocation OpLoc,
+ Stmt::StmtClass Class,
+ SourceLocation LAngleLoc,
+ QualType T,
+ SourceLocation RAngleLoc,
+ SourceLocation LParenLoc,
+ ExprArg SubExpr,
+ SourceLocation RParenLoc) {
+ switch (Class) {
+ case Stmt::CXXStaticCastExprClass:
+ return getDerived().RebuildCXXStaticCastExpr(OpLoc, LAngleLoc, T,
+ RAngleLoc, LParenLoc,
+ move(SubExpr), RParenLoc);
+
+ case Stmt::CXXDynamicCastExprClass:
+ return getDerived().RebuildCXXDynamicCastExpr(OpLoc, LAngleLoc, T,
+ RAngleLoc, LParenLoc,
+ move(SubExpr), RParenLoc);
+
+ case Stmt::CXXReinterpretCastExprClass:
+ return getDerived().RebuildCXXReinterpretCastExpr(OpLoc, LAngleLoc, T,
+ RAngleLoc, LParenLoc,
+ move(SubExpr),
+ RParenLoc);
+
+ case Stmt::CXXConstCastExprClass:
+ return getDerived().RebuildCXXConstCastExpr(OpLoc, LAngleLoc, T,
+ RAngleLoc, LParenLoc,
+ move(SubExpr), RParenLoc);
+
+ default:
+ assert(false && "Invalid C++ named cast");
+ break;
+ }
+
+ return getSema().ExprError();
+ }
+
+ /// \brief Build a new C++ static_cast expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXStaticCastExpr(SourceLocation OpLoc,
+ SourceLocation LAngleLoc,
+ QualType T,
+ SourceLocation RAngleLoc,
+ SourceLocation LParenLoc,
+ ExprArg SubExpr,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnCXXNamedCast(OpLoc, tok::kw_static_cast,
+ LAngleLoc, T.getAsOpaquePtr(), RAngleLoc,
+ LParenLoc, move(SubExpr), RParenLoc);
+ }
+
+ /// \brief Build a new C++ dynamic_cast expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXDynamicCastExpr(SourceLocation OpLoc,
+ SourceLocation LAngleLoc,
+ QualType T,
+ SourceLocation RAngleLoc,
+ SourceLocation LParenLoc,
+ ExprArg SubExpr,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnCXXNamedCast(OpLoc, tok::kw_dynamic_cast,
+ LAngleLoc, T.getAsOpaquePtr(), RAngleLoc,
+ LParenLoc, move(SubExpr), RParenLoc);
+ }
+
+ /// \brief Build a new C++ reinterpret_cast expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXReinterpretCastExpr(SourceLocation OpLoc,
+ SourceLocation LAngleLoc,
+ QualType T,
+ SourceLocation RAngleLoc,
+ SourceLocation LParenLoc,
+ ExprArg SubExpr,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnCXXNamedCast(OpLoc, tok::kw_reinterpret_cast,
+ LAngleLoc, T.getAsOpaquePtr(), RAngleLoc,
+ LParenLoc, move(SubExpr), RParenLoc);
+ }
+
+ /// \brief Build a new C++ const_cast expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXConstCastExpr(SourceLocation OpLoc,
+ SourceLocation LAngleLoc,
+ QualType T,
+ SourceLocation RAngleLoc,
+ SourceLocation LParenLoc,
+ ExprArg SubExpr,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnCXXNamedCast(OpLoc, tok::kw_const_cast,
+ LAngleLoc, T.getAsOpaquePtr(), RAngleLoc,
+ LParenLoc, move(SubExpr), RParenLoc);
+ }
+
+ /// \brief Build a new C++ functional-style cast expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXFunctionalCastExpr(SourceRange TypeRange,
+ QualType T,
+ SourceLocation LParenLoc,
+ ExprArg SubExpr,
+ SourceLocation RParenLoc) {
+ Expr *Sub = SubExpr.takeAs<Expr>();
+ return getSema().ActOnCXXTypeConstructExpr(TypeRange,
+ T.getAsOpaquePtr(),
+ LParenLoc,
+ Sema::MultiExprArg(getSema(),
+ (void **)&Sub,
+ 1),
+ /*CommaLocs=*/0,
+ RParenLoc);
+ }
+
+ /// \brief Build a new C++ typeid(type) expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXTypeidExpr(SourceLocation TypeidLoc,
+ SourceLocation LParenLoc,
+ QualType T,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnCXXTypeid(TypeidLoc, LParenLoc, true,
+ T.getAsOpaquePtr(), RParenLoc);
+ }
+
+ /// \brief Build a new C++ typeid(expr) expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXTypeidExpr(SourceLocation TypeidLoc,
+ SourceLocation LParenLoc,
+ ExprArg Operand,
+ SourceLocation RParenLoc) {
+ OwningExprResult Result
+ = getSema().ActOnCXXTypeid(TypeidLoc, LParenLoc, false, Operand.get(),
+ RParenLoc);
+ if (Result.isInvalid())
+ return getSema().ExprError();
+
+ Operand.release(); // FIXME: since ActOnCXXTypeid silently took ownership
+ return move(Result);
+ }
+
+ /// \brief Build a new C++ "this" expression.
+ ///
+ /// By default, builds a new "this" expression without performing any
+ /// semantic analysis. Subclasses may override this routine to provide
+ /// different behavior.
+ OwningExprResult RebuildCXXThisExpr(SourceLocation ThisLoc,
+ QualType ThisType) {
+ return getSema().Owned(
+ new (getSema().Context) CXXThisExpr(ThisLoc, ThisType));
+ }
+
+ /// \brief Build a new C++ throw expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXThrowExpr(SourceLocation ThrowLoc, ExprArg Sub) {
+ return getSema().ActOnCXXThrow(ThrowLoc, move(Sub));
+ }
+
+ /// \brief Build a new C++ default-argument expression.
+ ///
+ /// By default, builds a new default-argument expression, which does not
+ /// require any semantic analysis. Subclasses may override this routine to
+ /// provide different behavior.
+ OwningExprResult RebuildCXXDefaultArgExpr(ParmVarDecl *Param) {
+ return getSema().Owned(new (getSema().Context) CXXDefaultArgExpr(Param));
+ }
+
+ /// \brief Build a new C++ zero-initialization expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXZeroInitValueExpr(SourceLocation TypeStartLoc,
+ SourceLocation LParenLoc,
+ QualType T,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnCXXTypeConstructExpr(SourceRange(TypeStartLoc),
+ T.getAsOpaquePtr(), LParenLoc,
+ MultiExprArg(getSema(), 0, 0),
+ 0, RParenLoc);
+ }
+
+ /// \brief Build a new C++ conditional declaration expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXConditionDeclExpr(SourceLocation StartLoc,
+ SourceLocation EqLoc,
+ VarDecl *Var) {
+ return SemaRef.Owned(new (SemaRef.Context) CXXConditionDeclExpr(StartLoc,
+ EqLoc,
+ Var));
+ }
+
+ /// \brief Build a new C++ "new" expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXNewExpr(SourceLocation StartLoc,
+ bool UseGlobal,
+ SourceLocation PlacementLParen,
+ MultiExprArg PlacementArgs,
+ SourceLocation PlacementRParen,
+ bool ParenTypeId,
+ QualType AllocType,
+ SourceLocation TypeLoc,
+ SourceRange TypeRange,
+ ExprArg ArraySize,
+ SourceLocation ConstructorLParen,
+ MultiExprArg ConstructorArgs,
+ SourceLocation ConstructorRParen) {
+ return getSema().BuildCXXNew(StartLoc, UseGlobal,
+ PlacementLParen,
+ move(PlacementArgs),
+ PlacementRParen,
+ ParenTypeId,
+ AllocType,
+ TypeLoc,
+ TypeRange,
+ move(ArraySize),
+ ConstructorLParen,
+ move(ConstructorArgs),
+ ConstructorRParen);
+ }
+
+ /// \brief Build a new C++ "delete" expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXDeleteExpr(SourceLocation StartLoc,
+ bool IsGlobalDelete,
+ bool IsArrayForm,
+ ExprArg Operand) {
+ return getSema().ActOnCXXDelete(StartLoc, IsGlobalDelete, IsArrayForm,
+ move(Operand));
+ }
+
+ /// \brief Build a new unary type trait expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildUnaryTypeTrait(UnaryTypeTrait Trait,
+ SourceLocation StartLoc,
+ SourceLocation LParenLoc,
+ QualType T,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnUnaryTypeTrait(Trait, StartLoc, LParenLoc,
+ T.getAsOpaquePtr(), RParenLoc);
+ }
+
+ /// \brief Build a new qualified declaration reference expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildQualifiedDeclRefExpr(NestedNameSpecifier *NNS,
+ SourceRange QualifierRange,
+ NamedDecl *ND,
+ SourceLocation Location,
+ bool IsAddressOfOperand) {
+ CXXScopeSpec SS;
+ SS.setRange(QualifierRange);
+ SS.setScopeRep(NNS);
+ return getSema().ActOnDeclarationNameExpr(/*Scope=*/0,
+ Location,
+ ND->getDeclName(),
+ /*Trailing lparen=*/false,
+ &SS,
+ IsAddressOfOperand);
+ }
+
+ /// \brief Build a new (previously unresolved) declaration reference
+ /// expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildUnresolvedDeclRefExpr(NestedNameSpecifier *NNS,
+ SourceRange QualifierRange,
+ DeclarationName Name,
+ SourceLocation Location,
+ bool IsAddressOfOperand) {
+ CXXScopeSpec SS;
+ SS.setRange(QualifierRange);
+ SS.setScopeRep(NNS);
+ return getSema().ActOnDeclarationNameExpr(/*Scope=*/0,
+ Location,
+ Name,
+ /*Trailing lparen=*/false,
+ &SS,
+ IsAddressOfOperand);
+ }
+
+ /// \brief Build a new template-id expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildTemplateIdExpr(TemplateName Template,
+ SourceLocation TemplateLoc,
+ SourceLocation LAngleLoc,
+ TemplateArgument *TemplateArgs,
+ unsigned NumTemplateArgs,
+ SourceLocation RAngleLoc) {
+ return getSema().BuildTemplateIdExpr(Template, TemplateLoc,
+ LAngleLoc,
+ TemplateArgs, NumTemplateArgs,
+ RAngleLoc);
+ }
+
+ /// \brief Build a new object-construction expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXConstructExpr(QualType T,
+ CXXConstructorDecl *Constructor,
+ bool IsElidable,
+ MultiExprArg Args) {
+ unsigned NumArgs = Args.size();
+ Expr **ArgsExprs = (Expr **)Args.release();
+ return getSema().Owned(SemaRef.BuildCXXConstructExpr(getSema().Context, T,
+ Constructor,
+ IsElidable,
+ ArgsExprs,
+ NumArgs));
+ }
+
+ /// \brief Build a new object-construction expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXTemporaryObjectExpr(SourceLocation TypeBeginLoc,
+ QualType T,
+ SourceLocation LParenLoc,
+ MultiExprArg Args,
+ SourceLocation *Commas,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnCXXTypeConstructExpr(SourceRange(TypeBeginLoc),
+ T.getAsOpaquePtr(),
+ LParenLoc,
+ move(Args),
+ Commas,
+ RParenLoc);
+ }
+
+ /// \brief Build a new object-construction expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXUnresolvedConstructExpr(SourceLocation TypeBeginLoc,
+ QualType T,
+ SourceLocation LParenLoc,
+ MultiExprArg Args,
+ SourceLocation *Commas,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnCXXTypeConstructExpr(SourceRange(TypeBeginLoc,
+ /*FIXME*/LParenLoc),
+ T.getAsOpaquePtr(),
+ LParenLoc,
+ move(Args),
+ Commas,
+ RParenLoc);
+ }
+
+ /// \brief Build a new member reference expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildCXXUnresolvedMemberExpr(ExprArg Base,
+ bool IsArrow,
+ SourceLocation OperatorLoc,
+ DeclarationName Name,
+ SourceLocation MemberLoc) {
+ tok::TokenKind OpKind = IsArrow? tok::arrow : tok::period;
+ CXXScopeSpec SS;
+ Base = SemaRef.ActOnCXXEnterMemberScope(0, SS, move(Base), OpKind);
+ if (Base.isInvalid())
+ return SemaRef.ExprError();
+
+ assert(Name.getAsIdentifierInfo() &&
+ "Cannot transform member references with non-identifier members");
+ Base = SemaRef.ActOnMemberReferenceExpr(/*Scope=*/0,
+ move(Base), OperatorLoc, OpKind,
+ MemberLoc,
+ *Name.getAsIdentifierInfo(),
+ /*FIXME?*/Sema::DeclPtrTy::make((Decl*)0));
+ SemaRef.ActOnCXXExitMemberScope(0, SS);
+ return move(Base);
+ }
+
+ /// \brief Build a new Objective-C @encode expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildObjCEncodeExpr(SourceLocation AtLoc,
+ QualType T,
+ SourceLocation RParenLoc) {
+ return SemaRef.Owned(SemaRef.BuildObjCEncodeExpression(AtLoc, T,
+ RParenLoc));
+ }
+
+ /// \brief Build a new Objective-C protocol expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildObjCProtocolExpr(ObjCProtocolDecl *Protocol,
+ SourceLocation AtLoc,
+ SourceLocation ProtoLoc,
+ SourceLocation LParenLoc,
+ SourceLocation RParenLoc) {
+ return SemaRef.Owned(SemaRef.ParseObjCProtocolExpression(
+ Protocol->getIdentifier(),
+ AtLoc,
+ ProtoLoc,
+ LParenLoc,
+ RParenLoc));
+ }
+
+ /// \brief Build a new shuffle vector expression.
+ ///
+ /// By default, performs semantic analysis to build the new expression.
+ /// Subclasses may override this routine to provide different behavior.
+ OwningExprResult RebuildShuffleVectorExpr(SourceLocation BuiltinLoc,
+ MultiExprArg SubExprs,
+ SourceLocation RParenLoc) {
+ // Find the declaration for __builtin_shufflevector
+ const IdentifierInfo &Name
+ = SemaRef.Context.Idents.get("__builtin_shufflevector");
+ TranslationUnitDecl *TUDecl = SemaRef.Context.getTranslationUnitDecl();
+ DeclContext::lookup_result Lookup = TUDecl->lookup(DeclarationName(&Name));
+ assert(Lookup.first != Lookup.second && "No __builtin_shufflevector?");
+
+ // Build a reference to the __builtin_shufflevector builtin
+ FunctionDecl *Builtin = cast<FunctionDecl>(*Lookup.first);
+ Expr *Callee
+ = new (SemaRef.Context) DeclRefExpr(Builtin, Builtin->getType(),
+ BuiltinLoc, false, false);
+ SemaRef.UsualUnaryConversions(Callee);
+
+ // Build the CallExpr
+ unsigned NumSubExprs = SubExprs.size();
+ Expr **Subs = (Expr **)SubExprs.release();
+ CallExpr *TheCall = new (SemaRef.Context) CallExpr(SemaRef.Context, Callee,
+ Subs, NumSubExprs,
+ Builtin->getResultType(),
+ RParenLoc);
+ OwningExprResult OwnedCall(SemaRef.Owned(TheCall));
+
+ // Type-check the __builtin_shufflevector expression.
+ OwningExprResult Result = SemaRef.SemaBuiltinShuffleVector(TheCall);
+ if (Result.isInvalid())
+ return SemaRef.ExprError();
+
+ OwnedCall.release();
+ return move(Result);
+ }
};
+
template<typename Derived>
-Sema::OwningExprResult TreeTransform<Derived>::TransformExpr(Expr *E) {
- Sema::OwningStmtResult Result = getDerived().TransformStmt(E);
- if (Result.isInvalid())
- return SemaRef.ExprError();
-
- return SemaRef.Owned(cast_or_null<Stmt>(Result.takeAs<Stmt>()));
+Sema::OwningExprResult TreeTransform<Derived>::TransformExpr(Expr *E,
+ bool isAddressOfOperand) {
+ if (!E)
+ return SemaRef.Owned(E);
+
+ switch (E->getStmtClass()) {
+ case Stmt::NoStmtClass: break;
+#define STMT(Node, Parent) case Stmt::Node##Class: break;
+#define EXPR(Node, Parent) \
+ case Stmt::Node##Class: return getDerived().Transform##Node(cast<Node>(E));
+#include "clang/AST/StmtNodes.def"
+ }
+
+ return SemaRef.Owned(E->Retain());
}
template<typename Derived>
@@ -1230,6 +2075,1402 @@
}
//===----------------------------------------------------------------------===//
+// Expression transformation
+//===----------------------------------------------------------------------===//
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformPredefinedExpr(PredefinedExpr *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformDeclRefExpr(DeclRefExpr *E) {
+ NamedDecl *ND
+ = dyn_cast_or_null<NamedDecl>(getDerived().TransformDecl(E->getDecl()));
+ if (!ND)
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() && ND == E->getDecl())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildDeclRefExpr(ND, E->getLocation());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformIntegerLiteral(IntegerLiteral *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformFloatingLiteral(FloatingLiteral *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformImaginaryLiteral(ImaginaryLiteral *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformStringLiteral(StringLiteral *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCharacterLiteral(CharacterLiteral *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformParenExpr(ParenExpr *E) {
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getSubExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() && SubExpr.get() == E->getSubExpr())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildParenExpr(move(SubExpr), E->getLParen(),
+ E->getRParen());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformUnaryOperator(UnaryOperator *E) {
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getSubExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() && SubExpr.get() == E->getSubExpr())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildUnaryOperator(E->getOperatorLoc(),
+ E->getOpcode(),
+ move(SubExpr));
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformSizeOfAlignOfExpr(SizeOfAlignOfExpr *E) {
+ if (E->isArgumentType()) {
+ QualType T = getDerived().TransformType(E->getArgumentType());
+ if (T.isNull())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() && T == E->getArgumentType())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildSizeOfAlignOf(T, E->getOperatorLoc(),
+ E->isSizeOf(),
+ E->getSourceRange());
+ }
+
+ Sema::OwningExprResult SubExpr(SemaRef);
+ {
+ // C++0x [expr.sizeof]p1:
+ // The operand is either an expression, which is an unevaluated operand
+ // [...]
+ EnterExpressionEvaluationContext Unevaluated(SemaRef, Action::Unevaluated);
+
+ SubExpr = getDerived().TransformExpr(E->getArgumentExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() && SubExpr.get() == E->getArgumentExpr())
+ return SemaRef.Owned(E->Retain());
+ }
+
+ return getDerived().RebuildSizeOfAlignOf(move(SubExpr), E->getOperatorLoc(),
+ E->isSizeOf(),
+ E->getSourceRange());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformArraySubscriptExpr(ArraySubscriptExpr *E) {
+ OwningExprResult LHS = getDerived().TransformExpr(E->getLHS());
+ if (LHS.isInvalid())
+ return SemaRef.ExprError();
+
+ OwningExprResult RHS = getDerived().TransformExpr(E->getRHS());
+ if (RHS.isInvalid())
+ return SemaRef.ExprError();
+
+
+ if (!getDerived().AlwaysRebuild() &&
+ LHS.get() == E->getLHS() &&
+ RHS.get() == E->getRHS())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildArraySubscriptExpr(move(LHS),
+ /*FIXME:*/E->getLHS()->getLocStart(),
+ move(RHS),
+ E->getRBracketLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCallExpr(CallExpr *E) {
+ // Transform the callee.
+ OwningExprResult Callee = getDerived().TransformExpr(E->getCallee());
+ if (Callee.isInvalid())
+ return SemaRef.ExprError();
+
+ // Transform arguments.
+ bool ArgChanged = false;
+ ASTOwningVector<&ActionBase::DeleteExpr> Args(SemaRef);
+ llvm::SmallVector<SourceLocation, 4> FakeCommaLocs;
+ for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I) {
+ OwningExprResult Arg = getDerived().TransformExpr(E->getArg(I));
+ if (Arg.isInvalid())
+ return SemaRef.ExprError();
+
+ // FIXME: Wrong source location information for the ','.
+ FakeCommaLocs.push_back(
+ SemaRef.PP.getLocForEndOfToken(E->getArg(I)->getSourceRange().getEnd()));
+
+ ArgChanged = ArgChanged || Arg.get() != E->getArg(I);
+ Args.push_back(Arg.takeAs<Expr>());
+ }
+
+ if (!getDerived().AlwaysRebuild() &&
+ Callee.get() == E->getCallee() &&
+ !ArgChanged)
+ return SemaRef.Owned(E->Retain());
+
+ // FIXME: Wrong source location information for the '('.
+ SourceLocation FakeLParenLoc
+ = ((Expr *)Callee.get())->getSourceRange().getBegin();
+ return getDerived().RebuildCallExpr(move(Callee), FakeLParenLoc,
+ move_arg(Args),
+ FakeCommaLocs.data(),
+ E->getRParenLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformMemberExpr(MemberExpr *E) {
+ OwningExprResult Base = getDerived().TransformExpr(E->getBase());
+ if (Base.isInvalid())
+ return SemaRef.ExprError();
+
+ NamedDecl *Member
+ = cast_or_null<NamedDecl>(getDerived().TransformDecl(E->getMemberDecl()));
+ if (!Member)
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ Base.get() == E->getBase() &&
+ Member == E->getMemberDecl())
+ return SemaRef.Owned(E->Retain());
+
+ // FIXME: Bogus source location for the operator
+ SourceLocation FakeOperatorLoc
+ = SemaRef.PP.getLocForEndOfToken(E->getBase()->getSourceRange().getEnd());
+
+ return getDerived().RebuildMemberExpr(move(Base), FakeOperatorLoc,
+ E->isArrow(),
+ E->getMemberLoc(),
+ Member);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCastExpr(CastExpr *E) {
+ assert(false && "Cannot transform abstract class");
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformBinaryOperator(BinaryOperator *E) {
+ OwningExprResult LHS = getDerived().TransformExpr(E->getLHS());
+ if (LHS.isInvalid())
+ return SemaRef.ExprError();
+
+ OwningExprResult RHS = getDerived().TransformExpr(E->getRHS());
+ if (RHS.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ LHS.get() == E->getLHS() &&
+ RHS.get() == E->getRHS())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildBinaryOperator(E->getOperatorLoc(), E->getOpcode(),
+ move(LHS), move(RHS));
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCompoundAssignOperator(
+ CompoundAssignOperator *E) {
+ return getDerived().TransformBinaryOperator(E);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformConditionalOperator(ConditionalOperator *E) {
+ OwningExprResult Cond = getDerived().TransformExpr(E->getCond());
+ if (Cond.isInvalid())
+ return SemaRef.ExprError();
+
+ OwningExprResult LHS = getDerived().TransformExpr(E->getLHS());
+ if (LHS.isInvalid())
+ return SemaRef.ExprError();
+
+ OwningExprResult RHS = getDerived().TransformExpr(E->getRHS());
+ if (RHS.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ Cond.get() == E->getCond() &&
+ LHS.get() == E->getLHS() &&
+ RHS.get() == E->getRHS())
+ return SemaRef.Owned(E->Retain());
+
+ // FIXM: ? and : locations are broken.
+ SourceLocation FakeQuestionLoc = E->getCond()->getLocEnd();
+ SourceLocation FakeColonLoc = E->getFalseExpr()->getLocStart();
+ return getDerived().RebuildConditionalOperator(move(Cond),
+ FakeQuestionLoc,
+ move(LHS),
+ FakeColonLoc,
+ move(RHS));
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformImplicitCastExpr(ImplicitCastExpr *E) {
+ QualType T = getDerived().TransformType(E->getType());
+ if (T.isNull())
+ return SemaRef.ExprError();
+
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getSubExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getType() &&
+ SubExpr.get() == E->getSubExpr())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildImplicitCastExpr(T, E->getCastKind(),
+ move(SubExpr),
+ E->isLvalueCast());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformExplicitCastExpr(ExplicitCastExpr *E) {
+ assert(false && "Cannot transform abstract class");
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCStyleCastExpr(CStyleCastExpr *E) {
+ QualType T;
+ {
+ // FIXME: Source location isn't quite accurate.
+ SourceLocation TypeStartLoc
+ = SemaRef.PP.getLocForEndOfToken(E->getLParenLoc());
+ TemporaryBase Rebase(*this, TypeStartLoc, DeclarationName());
+
+ T = getDerived().TransformType(E->getTypeAsWritten());
+ if (T.isNull())
+ return SemaRef.ExprError();
+ }
+
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getSubExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getTypeAsWritten() &&
+ SubExpr.get() == E->getSubExpr())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCStyleCaseExpr(E->getLParenLoc(), T,
+ E->getRParenLoc(),
+ move(SubExpr));
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCompoundLiteralExpr(CompoundLiteralExpr *E) {
+ QualType T;
+ {
+ // FIXME: Source location isn't quite accurate.
+ SourceLocation FakeTypeLoc
+ = SemaRef.PP.getLocForEndOfToken(E->getLParenLoc());
+ TemporaryBase Rebase(*this, FakeTypeLoc, DeclarationName());
+
+ T = getDerived().TransformType(E->getType());
+ if (T.isNull())
+ return SemaRef.ExprError();
+ }
+
+ OwningExprResult Init = getDerived().TransformExpr(E->getInitializer());
+ if (Init.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getType() &&
+ Init.get() == E->getInitializer())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCompoundLiteralExpr(E->getLParenLoc(), T,
+ /*FIXME:*/E->getInitializer()->getLocEnd(),
+ move(Init));
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformExtVectorElementExpr(ExtVectorElementExpr *E) {
+ OwningExprResult Base = getDerived().TransformExpr(E->getBase());
+ if (Base.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ Base.get() == E->getBase())
+ return SemaRef.Owned(E->Retain());
+
+ // FIXME: Bad source location
+ SourceLocation FakeOperatorLoc
+ = SemaRef.PP.getLocForEndOfToken(E->getBase()->getLocEnd());
+ return getDerived().RebuildExtVectorElementExpr(move(Base), FakeOperatorLoc,
+ E->getAccessorLoc(),
+ E->getAccessor());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformInitListExpr(InitListExpr *E) {
+ bool InitChanged = false;
+
+ ASTOwningVector<&ActionBase::DeleteExpr, 4> Inits(SemaRef);
+ for (unsigned I = 0, N = E->getNumInits(); I != N; ++I) {
+ OwningExprResult Init = getDerived().TransformExpr(E->getInit(I));
+ if (Init.isInvalid())
+ return SemaRef.ExprError();
+
+ InitChanged = InitChanged || Init.get() != E->getInit(I);
+ Inits.push_back(Init.takeAs<Expr>());
+ }
+
+ if (!getDerived().AlwaysRebuild() && !InitChanged)
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildInitList(E->getLBraceLoc(), move_arg(Inits),
+ E->getRBraceLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformDesignatedInitExpr(DesignatedInitExpr *E) {
+ Designation Desig;
+
+ // Instantiate the initializer value
+ OwningExprResult Init = getDerived().TransformExpr(E->getInit());
+ if (Init.isInvalid())
+ return SemaRef.ExprError();
+
+ // Instantiate the designators.
+ ASTOwningVector<&ActionBase::DeleteExpr, 4> ArrayExprs(SemaRef);
+ bool ExprChanged = false;
+ for (DesignatedInitExpr::designators_iterator D = E->designators_begin(),
+ DEnd = E->designators_end();
+ D != DEnd; ++D) {
+ if (D->isFieldDesignator()) {
+ Desig.AddDesignator(Designator::getField(D->getFieldName(),
+ D->getDotLoc(),
+ D->getFieldLoc()));
+ continue;
+ }
+
+ if (D->isArrayDesignator()) {
+ OwningExprResult Index = getDerived().TransformExpr(E->getArrayIndex(*D));
+ if (Index.isInvalid())
+ return SemaRef.ExprError();
+
+ Desig.AddDesignator(Designator::getArray(Index.get(),
+ D->getLBracketLoc()));
+
+ ExprChanged = ExprChanged || Init.get() != E->getArrayIndex(*D);
+ ArrayExprs.push_back(Index.release());
+ continue;
+ }
+
+ assert(D->isArrayRangeDesignator() && "New kind of designator?");
+ OwningExprResult Start
+ = getDerived().TransformExpr(E->getArrayRangeStart(*D));
+ if (Start.isInvalid())
+ return SemaRef.ExprError();
+
+ OwningExprResult End = getDerived().TransformExpr(E->getArrayRangeEnd(*D));
+ if (End.isInvalid())
+ return SemaRef.ExprError();
+
+ Desig.AddDesignator(Designator::getArrayRange(Start.get(),
+ End.get(),
+ D->getLBracketLoc(),
+ D->getEllipsisLoc()));
+
+ ExprChanged = ExprChanged || Start.get() != E->getArrayRangeStart(*D) ||
+ End.get() != E->getArrayRangeEnd(*D);
+
+ ArrayExprs.push_back(Start.release());
+ ArrayExprs.push_back(End.release());
+ }
+
+ if (!getDerived().AlwaysRebuild() &&
+ Init.get() == E->getInit() &&
+ !ExprChanged)
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildDesignatedInitExpr(Desig, move_arg(ArrayExprs),
+ E->getEqualOrColonLoc(),
+ E->usesGNUSyntax(), move(Init));
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformImplicitValueInitExpr(
+ ImplicitValueInitExpr *E) {
+ QualType T = getDerived().TransformType(E->getType());
+ if (T.isNull())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getType())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildImplicitValueInitExpr(T);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformVAArgExpr(VAArgExpr *E) {
+ // FIXME: Do we want the type as written?
+ QualType T;
+
+ {
+ // FIXME: Source location isn't quite accurate.
+ TemporaryBase Rebase(*this, E->getBuiltinLoc(), DeclarationName());
+ T = getDerived().TransformType(E->getType());
+ if (T.isNull())
+ return SemaRef.ExprError();
+ }
+
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getSubExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getType() &&
+ SubExpr.get() == E->getSubExpr())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildVAArgExpr(E->getBuiltinLoc(), move(SubExpr),
+ T, E->getRParenLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformParenListExpr(ParenListExpr *E) {
+ bool ArgumentChanged = false;
+ ASTOwningVector<&ActionBase::DeleteExpr, 4> Inits(SemaRef);
+ for (unsigned I = 0, N = E->getNumExprs(); I != N; ++I) {
+ OwningExprResult Init = getDerived().TransformExpr(E->getExpr(I));
+ if (Init.isInvalid())
+ return SemaRef.ExprError();
+
+ ArgumentChanged = ArgumentChanged || Init.get() != E->getExpr(I);
+ Inits.push_back(Init.takeAs<Expr>());
+ }
+
+ return getDerived().RebuildParenListExpr(E->getLParenLoc(),
+ move_arg(Inits),
+ E->getRParenLoc());
+}
+
+/// \brief Transform an address-of-label expression.
+///
+/// By default, the transformation of an address-of-label expression always
+/// rebuilds the expression, so that the label identifier can be resolved to
+/// the corresponding label statement by semantic analysis.
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformAddrLabelExpr(AddrLabelExpr *E) {
+ return getDerived().RebuildAddrLabelExpr(E->getAmpAmpLoc(), E->getLabelLoc(),
+ E->getLabel());
+}
+
+template<typename Derived>
+Sema::OwningExprResult TreeTransform<Derived>::TransformStmtExpr(StmtExpr *E) {
+ OwningStmtResult SubStmt
+ = getDerived().TransformCompoundStmt(E->getSubStmt(), true);
+ if (SubStmt.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ SubStmt.get() == E->getSubStmt())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildStmtExpr(E->getLParenLoc(),
+ move(SubStmt),
+ E->getRParenLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformTypesCompatibleExpr(TypesCompatibleExpr *E) {
+ QualType T1, T2;
+ {
+ // FIXME: Source location isn't quite accurate.
+ TemporaryBase Rebase(*this, E->getBuiltinLoc(), DeclarationName());
+
+ T1 = getDerived().TransformType(E->getArgType1());
+ if (T1.isNull())
+ return SemaRef.ExprError();
+
+ T2 = getDerived().TransformType(E->getArgType2());
+ if (T2.isNull())
+ return SemaRef.ExprError();
+ }
+
+ if (!getDerived().AlwaysRebuild() &&
+ T1 == E->getArgType1() &&
+ T2 == E->getArgType2())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildTypesCompatibleExpr(E->getBuiltinLoc(),
+ T1, T2, E->getRParenLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformChooseExpr(ChooseExpr *E) {
+ OwningExprResult Cond = getDerived().TransformExpr(E->getCond());
+ if (Cond.isInvalid())
+ return SemaRef.ExprError();
+
+ OwningExprResult LHS = getDerived().TransformExpr(E->getLHS());
+ if (LHS.isInvalid())
+ return SemaRef.ExprError();
+
+ OwningExprResult RHS = getDerived().TransformExpr(E->getRHS());
+ if (RHS.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ Cond.get() == E->getCond() &&
+ LHS.get() == E->getLHS() &&
+ RHS.get() == E->getRHS())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildChooseExpr(E->getBuiltinLoc(),
+ move(Cond), move(LHS), move(RHS),
+ E->getRParenLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformGNUNullExpr(GNUNullExpr *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
+ OwningExprResult Callee = getDerived().TransformExpr(E->getCallee());
+ if (Callee.isInvalid())
+ return SemaRef.ExprError();
+
+ OwningExprResult First = getDerived().TransformExpr(E->getArg(0));
+ if (First.isInvalid())
+ return SemaRef.ExprError();
+
+ OwningExprResult Second(SemaRef);
+ if (E->getNumArgs() == 2) {
+ Second = getDerived().TransformExpr(E->getArg(1));
+ if (Second.isInvalid())
+ return SemaRef.ExprError();
+ }
+
+ if (!getDerived().AlwaysRebuild() &&
+ Callee.get() == E->getCallee() &&
+ First.get() == E->getArg(0) &&
+ (E->getNumArgs() != 2 || Second.get() == E->getArg(1)))
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXOperatorCallExpr(E->getOperator(),
+ E->getOperatorLoc(),
+ move(Callee),
+ move(First),
+ move(Second));
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXMemberCallExpr(CXXMemberCallExpr *E) {
+ return getDerived().TransformCallExpr(E);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXNamedCastExpr(CXXNamedCastExpr *E) {
+ QualType ExplicitTy;
+ {
+ // FIXME: Source location isn't quite accurate.
+ SourceLocation TypeStartLoc
+ = SemaRef.PP.getLocForEndOfToken(E->getOperatorLoc());
+ TemporaryBase Rebase(*this, TypeStartLoc, DeclarationName());
+
+ ExplicitTy = getDerived().TransformType(E->getTypeAsWritten());
+ if (ExplicitTy.isNull())
+ return SemaRef.ExprError();
+ }
+
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getSubExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ ExplicitTy == E->getTypeAsWritten() &&
+ SubExpr.get() == E->getSubExpr())
+ return SemaRef.Owned(E->Retain());
+
+ // FIXME: Poor source location information here.
+ SourceLocation FakeLAngleLoc
+ = SemaRef.PP.getLocForEndOfToken(E->getOperatorLoc());
+ SourceLocation FakeRAngleLoc = E->getSubExpr()->getSourceRange().getBegin();
+ SourceLocation FakeRParenLoc
+ = SemaRef.PP.getLocForEndOfToken(
+ E->getSubExpr()->getSourceRange().getEnd());
+ return getDerived().RebuildCXXNamedCastExpr(E->getOperatorLoc(),
+ E->getStmtClass(),
+ FakeLAngleLoc,
+ ExplicitTy,
+ FakeRAngleLoc,
+ FakeRAngleLoc,
+ move(SubExpr),
+ FakeRParenLoc);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXStaticCastExpr(CXXStaticCastExpr *E) {
+ return getDerived().TransformCXXNamedCastExpr(E);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
+ return getDerived().TransformCXXNamedCastExpr(E);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXReinterpretCastExpr(
+ CXXReinterpretCastExpr *E) {
+ return getDerived().TransformCXXNamedCastExpr(E);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXConstCastExpr(CXXConstCastExpr *E) {
+ return getDerived().TransformCXXNamedCastExpr(E);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXFunctionalCastExpr(
+ CXXFunctionalCastExpr *E) {
+ QualType ExplicitTy;
+ {
+ TemporaryBase Rebase(*this, E->getTypeBeginLoc(), DeclarationName());
+
+ ExplicitTy = getDerived().TransformType(E->getTypeAsWritten());
+ if (ExplicitTy.isNull())
+ return SemaRef.ExprError();
+ }
+
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getSubExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ ExplicitTy == E->getTypeAsWritten() &&
+ SubExpr.get() == E->getSubExpr())
+ return SemaRef.Owned(E->Retain());
+
+ // FIXME: The end of the type's source range is wrong
+ return getDerived().RebuildCXXFunctionalCastExpr(
+ /*FIXME:*/SourceRange(E->getTypeBeginLoc()),
+ ExplicitTy,
+ /*FIXME:*/E->getSubExpr()->getLocStart(),
+ move(SubExpr),
+ E->getRParenLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXTypeidExpr(CXXTypeidExpr *E) {
+ if (E->isTypeOperand()) {
+ TemporaryBase Rebase(*this, /*FIXME*/E->getLocStart(), DeclarationName());
+
+ QualType T = getDerived().TransformType(E->getTypeOperand());
+ if (T.isNull())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getTypeOperand())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXTypeidExpr(E->getLocStart(),
+ /*FIXME:*/E->getLocStart(),
+ T,
+ E->getLocEnd());
+ }
+
+ // We don't know whether the expression is potentially evaluated until
+ // after we perform semantic analysis, so the expression is potentially
+ // potentially evaluated.
+ EnterExpressionEvaluationContext Unevaluated(SemaRef,
+ Action::PotentiallyPotentiallyEvaluated);
+
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getExprOperand());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ SubExpr.get() == E->getExprOperand())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXTypeidExpr(E->getLocStart(),
+ /*FIXME:*/E->getLocStart(),
+ move(SubExpr),
+ E->getLocEnd());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXNullPtrLiteralExpr(
+ CXXNullPtrLiteralExpr *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXThisExpr(CXXThisExpr *E) {
+ TemporaryBase Rebase(*this, E->getLocStart(), DeclarationName());
+
+ QualType T = getDerived().TransformType(E->getType());
+ if (T.isNull())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getType())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXThisExpr(E->getLocStart(), T);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXThrowExpr(CXXThrowExpr *E) {
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getSubExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ SubExpr.get() == E->getSubExpr())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXThrowExpr(E->getThrowLoc(), move(SubExpr));
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
+ ParmVarDecl *Param
+ = cast_or_null<ParmVarDecl>(getDerived().TransformDecl(E->getParam()));
+ if (!Param)
+ return SemaRef.ExprError();
+
+ if (getDerived().AlwaysRebuild() &&
+ Param == E->getParam())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXDefaultArgExpr(Param);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXZeroInitValueExpr(CXXZeroInitValueExpr *E) {
+ TemporaryBase Rebase(*this, E->getTypeBeginLoc(), DeclarationName());
+
+ QualType T = getDerived().TransformType(E->getType());
+ if (T.isNull())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getType())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXZeroInitValueExpr(E->getTypeBeginLoc(),
+ /*FIXME:*/E->getTypeBeginLoc(),
+ T,
+ E->getRParenLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXConditionDeclExpr(CXXConditionDeclExpr *E) {
+ VarDecl *Var
+ = cast_or_null<VarDecl>(getDerived().TransformDecl(E->getVarDecl()));
+ if (!Var)
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ Var == E->getVarDecl())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXConditionDeclExpr(E->getStartLoc(),
+ /*FIXME:*/E->getStartLoc(),
+ Var);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXNewExpr(CXXNewExpr *E) {
+ // Transform the type that we're allocating
+ TemporaryBase Rebase(*this, E->getLocStart(), DeclarationName());
+ QualType AllocType = getDerived().TransformType(E->getAllocatedType());
+ if (AllocType.isNull())
+ return SemaRef.ExprError();
+
+ // Transform the size of the array we're allocating (if any).
+ OwningExprResult ArraySize = getDerived().TransformExpr(E->getArraySize());
+ if (ArraySize.isInvalid())
+ return SemaRef.ExprError();
+
+ // Transform the placement arguments (if any).
+ bool ArgumentChanged = false;
+ ASTOwningVector<&ActionBase::DeleteExpr> PlacementArgs(SemaRef);
+ for (unsigned I = 0, N = E->getNumPlacementArgs(); I != N; ++I) {
+ OwningExprResult Arg = getDerived().TransformExpr(E->getPlacementArg(I));
+ if (Arg.isInvalid())
+ return SemaRef.ExprError();
+
+ ArgumentChanged = ArgumentChanged || Arg.get() != E->getPlacementArg(I);
+ PlacementArgs.push_back(Arg.take());
+ }
+
+ // Instantiate the constructor arguments (if any).
+ ASTOwningVector<&ActionBase::DeleteExpr> ConstructorArgs(SemaRef);
+ for (unsigned I = 0, N = E->getNumConstructorArgs(); I != N; ++I) {
+ OwningExprResult Arg = getDerived().TransformExpr(E->getConstructorArg(I));
+ if (Arg.isInvalid())
+ return SemaRef.ExprError();
+
+ ArgumentChanged = ArgumentChanged || Arg.get() != E->getConstructorArg(I);
+ ConstructorArgs.push_back(Arg.take());
+ }
+
+ if (!getDerived().AlwaysRebuild() &&
+ AllocType == E->getAllocatedType() &&
+ ArraySize.get() == E->getArraySize() &&
+ !ArgumentChanged)
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXNewExpr(E->getLocStart(),
+ E->isGlobalNew(),
+ /*FIXME:*/E->getLocStart(),
+ move_arg(PlacementArgs),
+ /*FIXME:*/E->getLocStart(),
+ E->isParenTypeId(),
+ AllocType,
+ /*FIXME:*/E->getLocStart(),
+ /*FIXME:*/SourceRange(),
+ move(ArraySize),
+ /*FIXME:*/E->getLocStart(),
+ move_arg(ConstructorArgs),
+ E->getLocEnd());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXDeleteExpr(CXXDeleteExpr *E) {
+ OwningExprResult Operand = getDerived().TransformExpr(E->getArgument());
+ if (Operand.isInvalid())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ Operand.get() == E->getArgument())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXDeleteExpr(E->getLocStart(),
+ E->isGlobalDelete(),
+ E->isArrayForm(),
+ move(Operand));
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformUnresolvedFunctionNameExpr(
+ UnresolvedFunctionNameExpr *E) {
+ // There is no transformation we can apply to an unresolved function name.
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformUnaryTypeTraitExpr(UnaryTypeTraitExpr *E) {
+ TemporaryBase Rebase(*this, /*FIXME*/E->getLocStart(), DeclarationName());
+
+ QualType T = getDerived().TransformType(E->getQueriedType());
+ if (T.isNull())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getQueriedType())
+ return SemaRef.Owned(E->Retain());
+
+ // FIXME: Bad location information
+ SourceLocation FakeLParenLoc
+ = SemaRef.PP.getLocForEndOfToken(E->getLocStart());
+
+ return getDerived().RebuildUnaryTypeTrait(E->getTrait(),
+ E->getLocStart(),
+ /*FIXME:*/FakeLParenLoc,
+ T,
+ E->getLocEnd());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformQualifiedDeclRefExpr(QualifiedDeclRefExpr *E) {
+ NestedNameSpecifier *NNS
+ = getDerived().TransformNestedNameSpecifier(E->getQualifier(),
+ E->getQualifierRange());
+ if (!NNS)
+ return SemaRef.ExprError();
+
+ NamedDecl *ND
+ = dyn_cast_or_null<NamedDecl>(getDerived().TransformDecl(E->getDecl()));
+ if (!ND)
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ NNS == E->getQualifier() &&
+ ND == E->getDecl())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildQualifiedDeclRefExpr(NNS,
+ E->getQualifierRange(),
+ ND,
+ E->getLocation(),
+ /*FIXME:*/false);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformUnresolvedDeclRefExpr(
+ UnresolvedDeclRefExpr *E) {
+ NestedNameSpecifier *NNS
+ = getDerived().TransformNestedNameSpecifier(E->getQualifier(),
+ E->getQualifierRange());
+ if (!NNS)
+ return SemaRef.ExprError();
+
+ // FIXME: Transform the declaration name
+ DeclarationName Name = E->getDeclName();
+
+ if (!getDerived().AlwaysRebuild() &&
+ NNS == E->getQualifier() &&
+ Name == E->getDeclName())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildUnresolvedDeclRefExpr(NNS,
+ E->getQualifierRange(),
+ Name,
+ E->getLocation(),
+ /*FIXME:*/false);
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformTemplateIdRefExpr(TemplateIdRefExpr *E) {
+ TemplateName Template
+ = getDerived().TransformTemplateName(E->getTemplateName());
+ if (Template.isNull())
+ return SemaRef.ExprError();
+
+ llvm::SmallVector<TemplateArgument, 4> TransArgs;
+ for (unsigned I = 0, N = E->getNumTemplateArgs(); I != N; ++I) {
+ TemplateArgument TransArg
+ = getDerived().TransformTemplateArgument(E->getTemplateArgs()[I]);
+ if (TransArg.isNull())
+ return SemaRef.ExprError();
+
+ TransArgs.push_back(TransArg);
+ }
+
+ // FIXME: Would like to avoid rebuilding if nothing changed, but we can't
+ // compare template arguments (yet).
+
+ // FIXME: It's possible that we'll find out now that the template name
+ // actually refers to a type, in which case the caller is actually dealing
+ // with a functional cast. Give a reasonable error message!
+ return getDerived().RebuildTemplateIdExpr(Template, E->getTemplateNameLoc(),
+ E->getLAngleLoc(),
+ TransArgs.data(),
+ TransArgs.size(),
+ E->getRAngleLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXConstructExpr(CXXConstructExpr *E) {
+ TemporaryBase Rebase(*this, /*FIXME*/E->getLocStart(), DeclarationName());
+
+ QualType T = getDerived().TransformType(E->getType());
+ if (T.isNull())
+ return SemaRef.ExprError();
+
+ CXXConstructorDecl *Constructor
+ = cast_or_null<CXXConstructorDecl>(
+ getDerived().TransformDecl(E->getConstructor()));
+ if (!Constructor)
+ return SemaRef.ExprError();
+
+ bool ArgumentChanged = false;
+ ASTOwningVector<&ActionBase::DeleteExpr> Args(SemaRef);
+ for (CXXConstructExpr::arg_iterator Arg = E->arg_begin(),
+ ArgEnd = E->arg_end();
+ Arg != ArgEnd; ++Arg) {
+ OwningExprResult TransArg = getDerived().TransformExpr(*Arg);
+ if (TransArg.isInvalid())
+ return SemaRef.ExprError();
+
+ ArgumentChanged = ArgumentChanged || TransArg.get() != *Arg;
+ Args.push_back(TransArg.takeAs<Expr>());
+ }
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getType() &&
+ Constructor == E->getConstructor() &&
+ !ArgumentChanged)
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXConstructExpr(T, Constructor, E->isElidable(),
+ move_arg(Args));
+}
+
+/// \brief Transform a C++ temporary-binding expression.
+///
+/// The transformation of a temporary-binding expression always attempts to
+/// bind a new temporary variable to its subexpression, even if the
+/// subexpression itself did not change, because the temporary variable itself
+/// must be unique.
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getSubExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ return SemaRef.MaybeBindToTemporary(SubExpr.takeAs<Expr>());
+}
+
+/// \brief Transform a C++ expression that contains temporaries that should
+/// be destroyed after the expression is evaluated.
+///
+/// The transformation of a full expression always attempts to build a new
+/// CXXExprWithTemporaries expression, even if the
+/// subexpression itself did not change, because it will need to capture the
+/// the new temporary variables introduced in the subexpression.
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXExprWithTemporaries(
+ CXXExprWithTemporaries *E) {
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getSubExpr());
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ return SemaRef.Owned(
+ SemaRef.MaybeCreateCXXExprWithTemporaries(SubExpr.takeAs<Expr>(),
+ E->shouldDestroyTemporaries()));
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXTemporaryObjectExpr(
+ CXXTemporaryObjectExpr *E) {
+ TemporaryBase Rebase(*this, E->getTypeBeginLoc(), DeclarationName());
+ QualType T = getDerived().TransformType(E->getType());
+ if (T.isNull())
+ return SemaRef.ExprError();
+
+ CXXConstructorDecl *Constructor
+ = cast_or_null<CXXConstructorDecl>(
+ getDerived().TransformDecl(E->getConstructor()));
+ if (!Constructor)
+ return SemaRef.ExprError();
+
+ bool ArgumentChanged = false;
+ ASTOwningVector<&ActionBase::DeleteExpr> Args(SemaRef);
+ Args.reserve(E->getNumArgs());
+ for (CXXTemporaryObjectExpr::arg_iterator Arg = E->arg_begin(),
+ ArgEnd = E->arg_end();
+ Arg != ArgEnd; ++Arg) {
+ OwningExprResult TransArg = getDerived().TransformExpr(*Arg);
+ if (TransArg.isInvalid())
+ return SemaRef.ExprError();
+
+ ArgumentChanged = ArgumentChanged || TransArg.get() != *Arg;
+ Args.push_back((Expr *)TransArg.release());
+ }
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getType() &&
+ Constructor == E->getConstructor() &&
+ !ArgumentChanged)
+ return SemaRef.Owned(E->Retain());
+
+ // FIXME: Bogus location information
+ SourceLocation CommaLoc;
+ if (Args.size() > 1) {
+ Expr *First = (Expr *)Args[0];
+ CommaLoc
+ = SemaRef.PP.getLocForEndOfToken(First->getSourceRange().getEnd());
+ }
+ return getDerived().RebuildCXXTemporaryObjectExpr(E->getTypeBeginLoc(),
+ T,
+ /*FIXME:*/E->getTypeBeginLoc(),
+ move_arg(Args),
+ &CommaLoc,
+ E->getLocEnd());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXUnresolvedConstructExpr(
+ CXXUnresolvedConstructExpr *E) {
+ TemporaryBase Rebase(*this, E->getTypeBeginLoc(), DeclarationName());
+ QualType T = getDerived().TransformType(E->getTypeAsWritten());
+ if (T.isNull())
+ return SemaRef.ExprError();
+
+ bool ArgumentChanged = false;
+ ASTOwningVector<&ActionBase::DeleteExpr> Args(SemaRef);
+ llvm::SmallVector<SourceLocation, 8> FakeCommaLocs;
+ for (CXXUnresolvedConstructExpr::arg_iterator Arg = E->arg_begin(),
+ ArgEnd = E->arg_end();
+ Arg != ArgEnd; ++Arg) {
+ OwningExprResult TransArg = getDerived().TransformExpr(*Arg);
+ if (TransArg.isInvalid())
+ return SemaRef.ExprError();
+
+ ArgumentChanged = ArgumentChanged || TransArg.get() != *Arg;
+ FakeCommaLocs.push_back(
+ SemaRef.PP.getLocForEndOfToken((*Arg)->getLocEnd()));
+ Args.push_back(TransArg.takeAs<Expr>());
+ }
+
+ if (!getDerived().AlwaysRebuild() &&
+ T == E->getTypeAsWritten() &&
+ !ArgumentChanged)
+ return SemaRef.Owned(E->Retain());
+
+ // FIXME: we're faking the locations of the commas
+ return getDerived().RebuildCXXUnresolvedConstructExpr(E->getTypeBeginLoc(),
+ T,
+ E->getLParenLoc(),
+ move_arg(Args),
+ FakeCommaLocs.data(),
+ E->getRParenLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformCXXUnresolvedMemberExpr(
+ CXXUnresolvedMemberExpr *E) {
+ // Transform the base of the expression.
+ OwningExprResult Base = getDerived().TransformExpr(E->getBase());
+ if (Base.isInvalid())
+ return SemaRef.ExprError();
+
+ // FIXME: Transform the declaration name
+ DeclarationName Name = E->getMember();
+
+ if (!getDerived().AlwaysRebuild() &&
+ Base.get() == E->getBase() &&
+ Name == E->getMember())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildCXXUnresolvedMemberExpr(move(Base),
+ E->isArrow(),
+ E->getOperatorLoc(),
+ E->getMember(),
+ E->getMemberLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformObjCStringLiteral(ObjCStringLiteral *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformObjCEncodeExpr(ObjCEncodeExpr *E) {
+ // FIXME: poor source location
+ TemporaryBase Rebase(*this, E->getAtLoc(), DeclarationName());
+ QualType EncodedType = getDerived().TransformType(E->getEncodedType());
+ if (EncodedType.isNull())
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ EncodedType == E->getEncodedType())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildObjCEncodeExpr(E->getAtLoc(),
+ EncodedType,
+ E->getRParenLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformObjCMessageExpr(ObjCMessageExpr *E) {
+ // FIXME: Implement this!
+ assert(false && "Cannot transform Objective-C expressions yet");
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformObjCSelectorExpr(ObjCSelectorExpr *E) {
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformObjCProtocolExpr(ObjCProtocolExpr *E) {
+ ObjCProtocolDecl *Protocol
+ = cast_or_null<ObjCProtocolDecl>(
+ getDerived().TransformDecl(E->getProtocol()));
+ if (!Protocol)
+ return SemaRef.ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ Protocol == E->getProtocol())
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildObjCProtocolExpr(Protocol,
+ E->getAtLoc(),
+ /*FIXME:*/E->getAtLoc(),
+ /*FIXME:*/E->getAtLoc(),
+ E->getRParenLoc());
+
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformObjCIvarRefExpr(ObjCIvarRefExpr *E) {
+ // FIXME: Implement this!
+ assert(false && "Cannot transform Objective-C expressions yet");
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
+ // FIXME: Implement this!
+ assert(false && "Cannot transform Objective-C expressions yet");
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformObjCKVCRefExpr(ObjCKVCRefExpr *E) {
+ // FIXME: Implement this!
+ assert(false && "Cannot transform Objective-C expressions yet");
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformObjCSuperExpr(ObjCSuperExpr *E) {
+ // FIXME: Implement this!
+ assert(false && "Cannot transform Objective-C expressions yet");
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformObjCIsaExpr(ObjCIsaExpr *E) {
+ // FIXME: Implement this!
+ assert(false && "Cannot transform Objective-C expressions yet");
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformShuffleVectorExpr(ShuffleVectorExpr *E) {
+ bool ArgumentChanged = false;
+ ASTOwningVector<&ActionBase::DeleteExpr> SubExprs(SemaRef);
+ for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I) {
+ OwningExprResult SubExpr = getDerived().TransformExpr(E->getExpr(I));
+ if (SubExpr.isInvalid())
+ return SemaRef.ExprError();
+
+ ArgumentChanged = ArgumentChanged || SubExpr.get() != E->getExpr(I);
+ SubExprs.push_back(SubExpr.takeAs<Expr>());
+ }
+
+ if (!getDerived().AlwaysRebuild() &&
+ !ArgumentChanged)
+ return SemaRef.Owned(E->Retain());
+
+ return getDerived().RebuildShuffleVectorExpr(E->getBuiltinLoc(),
+ move_arg(SubExprs),
+ E->getRParenLoc());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformBlockExpr(BlockExpr *E) {
+ // FIXME: Implement this!
+ assert(false && "Cannot transform block expressions yet");
+ return SemaRef.Owned(E->Retain());
+}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::TransformBlockDeclRefExpr(BlockDeclRefExpr *E) {
+ // FIXME: Implement this!
+ assert(false && "Cannot transform block-related expressions yet");
+ return SemaRef.Owned(E->Retain());
+}
+
+//===----------------------------------------------------------------------===//
// Type reconstruction
//===----------------------------------------------------------------------===//
@@ -1352,7 +3593,7 @@
QualType
TreeTransform<Derived>::RebuildVariableArrayType(QualType ElementType,
ArrayType::ArraySizeModifier SizeMod,
- Sema::ExprArg SizeExpr,
+ ExprArg SizeExpr,
unsigned IndexTypeQuals,
SourceRange BracketsRange) {
return getDerived().RebuildArrayType(ElementType, SizeMod, 0,
@@ -1364,7 +3605,7 @@
QualType
TreeTransform<Derived>::RebuildDependentSizedArrayType(QualType ElementType,
ArrayType::ArraySizeModifier SizeMod,
- Sema::ExprArg SizeExpr,
+ ExprArg SizeExpr,
unsigned IndexTypeQuals,
SourceRange BracketsRange) {
return getDerived().RebuildArrayType(ElementType, SizeMod, 0,
@@ -1395,7 +3636,7 @@
template<typename Derived>
QualType
TreeTransform<Derived>::RebuildDependentSizedExtVectorType(QualType ElementType,
- Sema::ExprArg SizeExpr,
+ ExprArg SizeExpr,
SourceLocation AttributeLoc) {
return SemaRef.BuildExtVectorType(ElementType, move(SizeExpr), AttributeLoc);
}
@@ -1413,7 +3654,7 @@
}
template<typename Derived>
-QualType TreeTransform<Derived>::RebuildTypeOfExprType(Sema::ExprArg E) {
+QualType TreeTransform<Derived>::RebuildTypeOfExprType(ExprArg E) {
return SemaRef.BuildTypeofExprType(E.takeAs<Expr>());
}
@@ -1423,7 +3664,7 @@
}
template<typename Derived>
-QualType TreeTransform<Derived>::RebuildDecltypeType(Sema::ExprArg E) {
+QualType TreeTransform<Derived>::RebuildDecltypeType(ExprArg E) {
return SemaRef.BuildDecltypeType(E.takeAs<Expr>());
}
@@ -1521,6 +3762,87 @@
return Template.getAsVal<TemplateName>();
}
+
+template<typename Derived>
+Sema::OwningExprResult
+TreeTransform<Derived>::RebuildCXXOperatorCallExpr(OverloadedOperatorKind Op,
+ SourceLocation OpLoc,
+ ExprArg Callee,
+ ExprArg First,
+ ExprArg Second) {
+ Expr *FirstExpr = (Expr *)First.get();
+ Expr *SecondExpr = (Expr *)Second.get();
+ bool isPostIncDec = SecondExpr && (Op == OO_PlusPlus || Op == OO_MinusMinus);
+
+ // Determine whether this should be a builtin operation.
+ if (SecondExpr == 0 || isPostIncDec) {
+ if (!FirstExpr->getType()->isOverloadableType()) {
+ // The argument is not of overloadable type, so try to create a
+ // built-in unary operation.
+ UnaryOperator::Opcode Opc
+ = UnaryOperator::getOverloadedOpcode(Op, isPostIncDec);
+
+ return getSema().CreateBuiltinUnaryOp(OpLoc, Opc, move(First));
+ }
+ } else {
+ if (!FirstExpr->getType()->isOverloadableType() &&
+ !SecondExpr->getType()->isOverloadableType()) {
+ // Neither of the arguments is an overloadable type, so try to
+ // create a built-in binary operation.
+ BinaryOperator::Opcode Opc = BinaryOperator::getOverloadedOpcode(Op);
+ OwningExprResult Result
+ = SemaRef.CreateBuiltinBinOp(OpLoc, Opc, FirstExpr, SecondExpr);
+ if (Result.isInvalid())
+ return SemaRef.ExprError();
+
+ First.release();
+ Second.release();
+ return move(Result);
+ }
+ }
+
+ // Compute the transformed set of functions (and function templates) to be
+ // used during overload resolution.
+ Sema::FunctionSet Functions;
+
+ DeclRefExpr *DRE = cast<DeclRefExpr>((Expr *)Callee.get());
+ OverloadedFunctionDecl *Overloads
+ = cast<OverloadedFunctionDecl>(DRE->getDecl());
+
+ // FIXME: Do we have to check
+ // IsAcceptableNonMemberOperatorCandidate for each of these?
+ for (OverloadedFunctionDecl::function_iterator
+ F = Overloads->function_begin(),
+ FEnd = Overloads->function_end();
+ F != FEnd; ++F)
+ Functions.insert(*F);
+
+ // Add any functions found via argument-dependent lookup.
+ Expr *Args[2] = { FirstExpr, SecondExpr };
+ unsigned NumArgs = 1 + (SecondExpr != 0);
+ DeclarationName OpName
+ = SemaRef.Context.DeclarationNames.getCXXOperatorName(Op);
+ SemaRef.ArgumentDependentLookup(OpName, Args, NumArgs, Functions);
+
+ // Create the overloaded operator invocation for unary operators.
+ if (NumArgs == 1 || isPostIncDec) {
+ UnaryOperator::Opcode Opc
+ = UnaryOperator::getOverloadedOpcode(Op, isPostIncDec);
+ return SemaRef.CreateOverloadedUnaryOp(OpLoc, Opc, Functions, move(First));
+ }
+
+ // Create the overloaded operator invocation for binary operators.
+ BinaryOperator::Opcode Opc =
+ BinaryOperator::getOverloadedOpcode(Op);
+ OwningExprResult Result
+ = SemaRef.CreateOverloadedBinOp(OpLoc, Opc, Functions, Args[0], Args[1]);
+ if (Result.isInvalid())
+ return SemaRef.ExprError();
+
+ First.release();
+ Second.release();
+ return move(Result);
+}
} // end namespace clang