3736 lines
177 KiB
C++
3736 lines
177 KiB
C++
//===--- Sema.h - Semantic Analysis & AST Building --------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the Sema class, which performs semantic analysis and
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// builds ASTs.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_AST_SEMA_H
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#define LLVM_CLANG_AST_SEMA_H
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#include "IdentifierResolver.h"
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#include "CXXFieldCollector.h"
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#include "SemaOverload.h"
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#include "SemaTemplate.h"
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#include "clang/AST/Attr.h"
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#include "clang/AST/DeclBase.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclObjC.h"
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#include "clang/AST/DeclTemplate.h"
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#include "clang/Parse/Action.h"
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#include "clang/Sema/SemaDiagnostic.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/DenseSet.h"
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#include "llvm/ADT/SmallPtrSet.h"
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#include "llvm/ADT/OwningPtr.h"
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#include <deque>
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#include <list>
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#include <string>
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#include <vector>
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namespace llvm {
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class APSInt;
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}
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namespace clang {
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class ASTContext;
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class ASTConsumer;
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class CodeCompleteConsumer;
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class Preprocessor;
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class Decl;
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class DeclContext;
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class DeclSpec;
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class ExternalSemaSource;
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class NamedDecl;
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class Stmt;
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class Expr;
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class InitListExpr;
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class ParenListExpr;
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class DesignatedInitExpr;
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class CallExpr;
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class DeclRefExpr;
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class VarDecl;
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class ParmVarDecl;
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class TypedefDecl;
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class FunctionDecl;
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class QualType;
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class LangOptions;
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class Token;
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class IntegerLiteral;
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class StringLiteral;
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class ArrayType;
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class LabelStmt;
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class SwitchStmt;
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class CXXTryStmt;
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class ExtVectorType;
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class TypedefDecl;
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class TemplateDecl;
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class TemplateArgument;
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class TemplateArgumentList;
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class TemplateParameterList;
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class TemplateTemplateParmDecl;
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class ClassTemplatePartialSpecializationDecl;
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class ClassTemplateDecl;
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class ObjCInterfaceDecl;
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class ObjCCompatibleAliasDecl;
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class ObjCProtocolDecl;
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class ObjCImplDecl;
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class ObjCImplementationDecl;
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class ObjCCategoryImplDecl;
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class ObjCCategoryDecl;
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class ObjCIvarDecl;
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class ObjCMethodDecl;
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class ObjCPropertyDecl;
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class ObjCContainerDecl;
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class FunctionProtoType;
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class BasePaths;
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struct MemberLookupCriteria;
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class CXXTemporary;
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/// BlockSemaInfo - When a block is being parsed, this contains information
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/// about the block. It is pointed to from Sema::CurBlock.
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struct BlockSemaInfo {
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llvm::SmallVector<ParmVarDecl*, 8> Params;
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bool hasPrototype;
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bool isVariadic;
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bool hasBlockDeclRefExprs;
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BlockDecl *TheDecl;
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/// TheScope - This is the scope for the block itself, which contains
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/// arguments etc.
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Scope *TheScope;
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/// ReturnType - This will get set to block result type, by looking at
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/// return types, if any, in the block body.
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QualType ReturnType;
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/// LabelMap - This is a mapping from label identifiers to the LabelStmt for
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/// it (which acts like the label decl in some ways). Forward referenced
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/// labels have a LabelStmt created for them with a null location & SubStmt.
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llvm::DenseMap<IdentifierInfo*, LabelStmt*> LabelMap;
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/// SwitchStack - This is the current set of active switch statements in the
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/// block.
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llvm::SmallVector<SwitchStmt*, 8> SwitchStack;
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/// SavedFunctionNeedsScopeChecking - This is the value of
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/// CurFunctionNeedsScopeChecking at the point when the block started.
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bool SavedFunctionNeedsScopeChecking;
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/// PrevBlockInfo - If this is nested inside another block, this points
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/// to the outer block.
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BlockSemaInfo *PrevBlockInfo;
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};
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/// \brief Holds a QualType and a DeclaratorInfo* that came out of a declarator
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/// parsing.
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///
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/// LocInfoType is a "transient" type, only needed for passing to/from Parser
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/// and Sema, when we want to preserve type source info for a parsed type.
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/// It will not participate in the type system semantics in any way.
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class LocInfoType : public Type {
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enum {
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// The last number that can fit in Type's TC.
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// Avoids conflict with an existing Type class.
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LocInfo = (1 << TypeClassBitSize) - 1
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};
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DeclaratorInfo *DeclInfo;
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LocInfoType(QualType ty, DeclaratorInfo *DInfo)
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: Type((TypeClass)LocInfo, ty, ty->isDependentType()), DeclInfo(DInfo) {
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assert(getTypeClass() == (TypeClass)LocInfo && "LocInfo didn't fit in TC?");
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}
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friend class Sema;
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public:
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QualType getType() const { return getCanonicalTypeInternal(); }
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DeclaratorInfo *getDeclaratorInfo() const { return DeclInfo; }
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virtual void getAsStringInternal(std::string &Str,
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const PrintingPolicy &Policy) const;
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static bool classof(const Type *T) {
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return T->getTypeClass() == (TypeClass)LocInfo;
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}
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static bool classof(const LocInfoType *) { return true; }
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};
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/// Sema - This implements semantic analysis and AST building for C.
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class Sema : public Action {
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Sema(const Sema&); // DO NOT IMPLEMENT
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void operator=(const Sema&); // DO NOT IMPLEMENT
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public:
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const LangOptions &LangOpts;
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Preprocessor &PP;
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ASTContext &Context;
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ASTConsumer &Consumer;
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Diagnostic &Diags;
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SourceManager &SourceMgr;
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/// \brief Source of additional semantic information.
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ExternalSemaSource *ExternalSource;
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/// \brief Code-completion consumer.
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CodeCompleteConsumer *CodeCompleter;
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/// CurContext - This is the current declaration context of parsing.
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DeclContext *CurContext;
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/// PreDeclaratorDC - Keeps the declaration context before switching to the
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/// context of a declarator's nested-name-specifier.
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DeclContext *PreDeclaratorDC;
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/// CurBlock - If inside of a block definition, this contains a pointer to
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/// the active block object that represents it.
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BlockSemaInfo *CurBlock;
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/// PackContext - Manages the stack for #pragma pack. An alignment
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/// of 0 indicates default alignment.
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void *PackContext; // Really a "PragmaPackStack*"
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/// FunctionLabelMap - This is a mapping from label identifiers to the
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/// LabelStmt for it (which acts like the label decl in some ways). Forward
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/// referenced labels have a LabelStmt created for them with a null location &
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/// SubStmt.
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///
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/// Note that this should always be accessed through getLabelMap() in order
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/// to handle blocks properly.
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llvm::DenseMap<IdentifierInfo*, LabelStmt*> FunctionLabelMap;
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/// FunctionSwitchStack - This is the current set of active switch statements
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/// in the top level function. Clients should always use getSwitchStack() to
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/// handle the case when they are in a block.
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llvm::SmallVector<SwitchStmt*, 8> FunctionSwitchStack;
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/// ExprTemporaries - This is the stack of temporaries that are created by
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/// the current full expression.
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llvm::SmallVector<CXXTemporary*, 8> ExprTemporaries;
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/// CurFunctionNeedsScopeChecking - This is set to true when a function or
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/// ObjC method body contains a VLA or an ObjC try block, which introduce
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/// scopes that need to be checked for goto conditions. If a function does
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/// not contain this, then it need not have the jump checker run on it.
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bool CurFunctionNeedsScopeChecking;
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/// ExtVectorDecls - This is a list all the extended vector types. This allows
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/// us to associate a raw vector type with one of the ext_vector type names.
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/// This is only necessary for issuing pretty diagnostics.
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llvm::SmallVector<TypedefDecl*, 24> ExtVectorDecls;
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/// FieldCollector - Collects CXXFieldDecls during parsing of C++ classes.
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llvm::OwningPtr<CXXFieldCollector> FieldCollector;
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typedef llvm::SmallPtrSet<const CXXRecordDecl*, 8> RecordDeclSetTy;
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/// PureVirtualClassDiagSet - a set of class declarations which we have
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/// emitted a list of pure virtual functions. Used to prevent emitting the
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/// same list more than once.
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llvm::OwningPtr<RecordDeclSetTy> PureVirtualClassDiagSet;
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/// \brief A mapping from external names to the most recent
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/// locally-scoped external declaration with that name.
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///
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/// This map contains external declarations introduced in local
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/// scoped, e.g.,
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///
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/// \code
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/// void f() {
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/// void foo(int, int);
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/// }
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/// \endcode
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///
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/// Here, the name "foo" will be associated with the declaration on
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/// "foo" within f. This name is not visible outside of
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/// "f". However, we still find it in two cases:
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///
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/// - If we are declaring another external with the name "foo", we
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/// can find "foo" as a previous declaration, so that the types
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/// of this external declaration can be checked for
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/// compatibility.
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///
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/// - If we would implicitly declare "foo" (e.g., due to a call to
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/// "foo" in C when no prototype or definition is visible), then
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/// we find this declaration of "foo" and complain that it is
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/// not visible.
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llvm::DenseMap<DeclarationName, NamedDecl *> LocallyScopedExternalDecls;
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/// \brief The set of tentative declarations seen so far in this
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/// translation unit for which no definition has been seen.
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///
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/// The tentative declarations are indexed by the name of the
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/// declaration, and only the most recent tentative declaration for
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/// a given variable will be recorded here.
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llvm::DenseMap<DeclarationName, VarDecl *> TentativeDefinitions;
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std::vector<DeclarationName> TentativeDefinitionList;
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/// WeakUndeclaredIdentifiers - Identifiers contained in
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/// #pragma weak before declared. rare. may alias another
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/// identifier, declared or undeclared
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class WeakInfo {
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IdentifierInfo *alias; // alias (optional)
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SourceLocation loc; // for diagnostics
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bool used; // identifier later declared?
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public:
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WeakInfo()
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: alias(0), loc(SourceLocation()), used(false) {}
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WeakInfo(IdentifierInfo *Alias, SourceLocation Loc)
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: alias(Alias), loc(Loc), used(false) {}
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inline IdentifierInfo * getAlias() const { return alias; }
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inline SourceLocation getLocation() const { return loc; }
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void setUsed(bool Used=true) { used = Used; }
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inline bool getUsed() { return used; }
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bool operator==(WeakInfo RHS) const {
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return alias == RHS.getAlias() && loc == RHS.getLocation();
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}
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bool operator!=(WeakInfo RHS) const { return !(*this == RHS); }
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};
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llvm::DenseMap<IdentifierInfo*,WeakInfo> WeakUndeclaredIdentifiers;
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/// WeakTopLevelDecl - Translation-unit scoped declarations generated by
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/// #pragma weak during processing of other Decls.
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/// I couldn't figure out a clean way to generate these in-line, so
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/// we store them here and handle separately -- which is a hack.
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/// It would be best to refactor this.
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llvm::SmallVector<Decl*,2> WeakTopLevelDecl;
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IdentifierResolver IdResolver;
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/// Translation Unit Scope - useful to Objective-C actions that need
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/// to lookup file scope declarations in the "ordinary" C decl namespace.
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/// For example, user-defined classes, built-in "id" type, etc.
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Scope *TUScope;
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/// \brief The C++ "std" namespace, where the standard library resides.
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NamespaceDecl *StdNamespace;
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/// \brief The C++ "std::bad_alloc" class, which is defined by the C++
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/// standard library.
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CXXRecordDecl *StdBadAlloc;
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/// A flag to remember whether the implicit forms of operator new and delete
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/// have been declared.
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bool GlobalNewDeleteDeclared;
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/// The current expression evaluation context.
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ExpressionEvaluationContext ExprEvalContext;
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typedef std::vector<std::pair<SourceLocation, Decl *> >
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PotentiallyReferencedDecls;
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/// A stack of declarations, each element of which is a set of declarations
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/// that will be marked as referenced if the corresponding potentially
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/// potentially evaluated expression is potentially evaluated. Each element
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/// in the stack corresponds to a PotentiallyPotentiallyEvaluated expression
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/// evaluation context.
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std::list<PotentiallyReferencedDecls> PotentiallyReferencedDeclStack;
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/// \brief Whether the code handled by Sema should be considered a
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/// complete translation unit or not.
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///
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/// When true (which is generally the case), Sema will perform
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/// end-of-translation-unit semantic tasks (such as creating
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/// initializers for tentative definitions in C) once parsing has
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/// completed. This flag will be false when building PCH files,
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/// since a PCH file is by definition not a complete translation
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/// unit.
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bool CompleteTranslationUnit;
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llvm::BumpPtrAllocator BumpAlloc;
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/// \brief The number of SFINAE diagnostics that have been trapped.
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unsigned NumSFINAEErrors;
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typedef llvm::DenseMap<Selector, ObjCMethodList> MethodPool;
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/// Instance/Factory Method Pools - allows efficient lookup when typechecking
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/// messages to "id". We need to maintain a list, since selectors can have
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/// differing signatures across classes. In Cocoa, this happens to be
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/// extremely uncommon (only 1% of selectors are "overloaded").
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MethodPool InstanceMethodPool;
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MethodPool FactoryMethodPool;
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MethodPool::iterator ReadMethodPool(Selector Sel, bool isInstance);
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/// Private Helper predicate to check for 'self'.
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bool isSelfExpr(Expr *RExpr);
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public:
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Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer,
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bool CompleteTranslationUnit = true);
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~Sema() {
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if (PackContext) FreePackedContext();
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}
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const LangOptions &getLangOptions() const { return LangOpts; }
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Diagnostic &getDiagnostics() const { return Diags; }
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SourceManager &getSourceManager() const { return SourceMgr; }
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/// \brief Helper class that creates diagnostics with optional
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/// template instantiation stacks.
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///
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/// This class provides a wrapper around the basic DiagnosticBuilder
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/// class that emits diagnostics. SemaDiagnosticBuilder is
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/// responsible for emitting the diagnostic (as DiagnosticBuilder
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/// does) and, if the diagnostic comes from inside a template
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/// instantiation, printing the template instantiation stack as
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/// well.
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class SemaDiagnosticBuilder : public DiagnosticBuilder {
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Sema &SemaRef;
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unsigned DiagID;
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public:
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SemaDiagnosticBuilder(DiagnosticBuilder &DB, Sema &SemaRef, unsigned DiagID)
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: DiagnosticBuilder(DB), SemaRef(SemaRef), DiagID(DiagID) { }
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explicit SemaDiagnosticBuilder(Sema &SemaRef)
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: DiagnosticBuilder(DiagnosticBuilder::Suppress), SemaRef(SemaRef) { }
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~SemaDiagnosticBuilder();
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};
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/// \brief Emit a diagnostic.
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SemaDiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID) {
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if (isSFINAEContext() && Diagnostic::isBuiltinSFINAEDiag(DiagID)) {
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// If we encountered an error during template argument
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// deduction, and that error is one of the SFINAE errors,
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// suppress the diagnostic.
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++NumSFINAEErrors;
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return SemaDiagnosticBuilder(*this);
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}
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DiagnosticBuilder DB = Diags.Report(FullSourceLoc(Loc, SourceMgr), DiagID);
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return SemaDiagnosticBuilder(DB, *this, DiagID);
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}
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/// \brief Emit a partial diagnostic.
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SemaDiagnosticBuilder Diag(SourceLocation Loc, const PartialDiagnostic& PD);
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virtual void DeleteExpr(ExprTy *E);
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virtual void DeleteStmt(StmtTy *S);
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OwningExprResult Owned(Expr* E) { return OwningExprResult(*this, E); }
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OwningExprResult Owned(ExprResult R) {
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if (R.isInvalid())
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return ExprError();
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return OwningExprResult(*this, R.get());
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}
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OwningStmtResult Owned(Stmt* S) { return OwningStmtResult(*this, S); }
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virtual void ActOnEndOfTranslationUnit();
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/// getLabelMap() - Return the current label map. If we're in a block, we
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/// return it.
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llvm::DenseMap<IdentifierInfo*, LabelStmt*> &getLabelMap() {
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return CurBlock ? CurBlock->LabelMap : FunctionLabelMap;
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}
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/// getSwitchStack - This is returns the switch stack for the current block or
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/// function.
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llvm::SmallVector<SwitchStmt*,8> &getSwitchStack() {
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return CurBlock ? CurBlock->SwitchStack : FunctionSwitchStack;
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}
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/// WeakTopLevelDeclDecls - access to #pragma weak-generated Decls
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llvm::SmallVector<Decl*,2> &WeakTopLevelDecls() { return WeakTopLevelDecl; }
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virtual void ActOnComment(SourceRange Comment);
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//===--------------------------------------------------------------------===//
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// Type Analysis / Processing: SemaType.cpp.
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//
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QualType adjustParameterType(QualType T);
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QualType ConvertDeclSpecToType(const DeclSpec &DS, SourceLocation DeclLoc,
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bool &IsInvalid);
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void ProcessTypeAttributeList(QualType &Result, const AttributeList *AL);
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QualType BuildPointerType(QualType T, unsigned Quals,
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SourceLocation Loc, DeclarationName Entity);
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QualType BuildReferenceType(QualType T, bool LValueRef, unsigned Quals,
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SourceLocation Loc, DeclarationName Entity);
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QualType BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM,
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Expr *ArraySize, unsigned Quals,
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SourceRange Brackets, DeclarationName Entity);
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QualType BuildExtVectorType(QualType T, ExprArg ArraySize,
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SourceLocation AttrLoc);
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QualType BuildFunctionType(QualType T,
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QualType *ParamTypes, unsigned NumParamTypes,
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bool Variadic, unsigned Quals,
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SourceLocation Loc, DeclarationName Entity);
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QualType BuildMemberPointerType(QualType T, QualType Class,
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unsigned Quals, SourceLocation Loc,
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DeclarationName Entity);
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QualType BuildBlockPointerType(QualType T, unsigned Quals,
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SourceLocation Loc, DeclarationName Entity);
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QualType GetTypeForDeclarator(Declarator &D, Scope *S,
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DeclaratorInfo **DInfo = 0,
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unsigned Skip = 0, TagDecl **OwnedDecl = 0);
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DeclaratorInfo *GetDeclaratorInfoForDeclarator(Declarator &D, QualType T,
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unsigned Skip);
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/// \brief Create a LocInfoType to hold the given QualType and DeclaratorInfo.
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QualType CreateLocInfoType(QualType T, DeclaratorInfo *DInfo);
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DeclarationName GetNameForDeclarator(Declarator &D);
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static QualType GetTypeFromParser(TypeTy *Ty, DeclaratorInfo **DInfo = 0);
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bool CheckSpecifiedExceptionType(QualType T, const SourceRange &Range);
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bool CheckDistantExceptionSpec(QualType T);
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bool CheckEquivalentExceptionSpec(
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const FunctionProtoType *Old, SourceLocation OldLoc,
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const FunctionProtoType *New, SourceLocation NewLoc);
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bool CheckExceptionSpecSubset(unsigned DiagID, unsigned NoteID,
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const FunctionProtoType *Superset, SourceLocation SuperLoc,
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const FunctionProtoType *Subset, SourceLocation SubLoc);
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QualType ObjCGetTypeForMethodDefinition(DeclPtrTy D);
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bool UnwrapSimilarPointerTypes(QualType& T1, QualType& T2);
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virtual TypeResult ActOnTypeName(Scope *S, Declarator &D);
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|
|
bool RequireCompleteType(SourceLocation Loc, QualType T,
|
|
const PartialDiagnostic &PD);
|
|
|
|
QualType getQualifiedNameType(const CXXScopeSpec &SS, QualType T);
|
|
|
|
QualType BuildTypeofExprType(Expr *E);
|
|
QualType BuildDecltypeType(Expr *E);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Symbol table / Decl tracking callbacks: SemaDecl.cpp.
|
|
//
|
|
|
|
/// getDeclName - Return a pretty name for the specified decl if possible, or
|
|
/// an empty string if not. This is used for pretty crash reporting.
|
|
virtual std::string getDeclName(DeclPtrTy D);
|
|
|
|
DeclGroupPtrTy ConvertDeclToDeclGroup(DeclPtrTy Ptr);
|
|
|
|
virtual TypeTy *getTypeName(IdentifierInfo &II, SourceLocation NameLoc,
|
|
Scope *S, const CXXScopeSpec *SS,
|
|
bool isClassName = false);
|
|
virtual DeclSpec::TST isTagName(IdentifierInfo &II, Scope *S);
|
|
|
|
virtual DeclPtrTy ActOnDeclarator(Scope *S, Declarator &D) {
|
|
return HandleDeclarator(S, D, MultiTemplateParamsArg(*this), false);
|
|
}
|
|
|
|
DeclPtrTy HandleDeclarator(Scope *S, Declarator &D,
|
|
MultiTemplateParamsArg TemplateParameterLists,
|
|
bool IsFunctionDefinition);
|
|
void RegisterLocallyScopedExternCDecl(NamedDecl *ND, NamedDecl *PrevDecl,
|
|
Scope *S);
|
|
void DiagnoseFunctionSpecifiers(Declarator& D);
|
|
NamedDecl* ActOnTypedefDeclarator(Scope* S, Declarator& D, DeclContext* DC,
|
|
QualType R, DeclaratorInfo *DInfo,
|
|
Decl* PrevDecl, bool &Redeclaration);
|
|
NamedDecl* ActOnVariableDeclarator(Scope* S, Declarator& D, DeclContext* DC,
|
|
QualType R, DeclaratorInfo *DInfo,
|
|
NamedDecl* PrevDecl,
|
|
MultiTemplateParamsArg TemplateParamLists,
|
|
bool &Redeclaration);
|
|
void CheckVariableDeclaration(VarDecl *NewVD, NamedDecl *PrevDecl,
|
|
bool &Redeclaration);
|
|
NamedDecl* ActOnFunctionDeclarator(Scope* S, Declarator& D, DeclContext* DC,
|
|
QualType R, DeclaratorInfo *DInfo,
|
|
NamedDecl* PrevDecl,
|
|
MultiTemplateParamsArg TemplateParamLists,
|
|
bool IsFunctionDefinition,
|
|
bool &Redeclaration);
|
|
void CheckFunctionDeclaration(FunctionDecl *NewFD, NamedDecl *&PrevDecl,
|
|
bool &Redeclaration,
|
|
bool &OverloadableAttrRequired);
|
|
void CheckMain(FunctionDecl *FD);
|
|
virtual DeclPtrTy ActOnParamDeclarator(Scope *S, Declarator &D);
|
|
virtual void ActOnParamDefaultArgument(DeclPtrTy param,
|
|
SourceLocation EqualLoc,
|
|
ExprArg defarg);
|
|
virtual void ActOnParamUnparsedDefaultArgument(DeclPtrTy param,
|
|
SourceLocation EqualLoc,
|
|
SourceLocation ArgLoc);
|
|
virtual void ActOnParamDefaultArgumentError(DeclPtrTy param);
|
|
bool SetParamDefaultArgument(ParmVarDecl *Param, ExprArg DefaultArg,
|
|
SourceLocation EqualLoc);
|
|
|
|
|
|
// Contains the locations of the beginning of unparsed default
|
|
// argument locations.
|
|
llvm::DenseMap<ParmVarDecl *,SourceLocation> UnparsedDefaultArgLocs;
|
|
|
|
virtual void AddInitializerToDecl(DeclPtrTy dcl, ExprArg init);
|
|
void AddInitializerToDecl(DeclPtrTy dcl, ExprArg init, bool DirectInit);
|
|
void ActOnUninitializedDecl(DeclPtrTy dcl, bool TypeContainsUndeducedAuto);
|
|
virtual void SetDeclDeleted(DeclPtrTy dcl, SourceLocation DelLoc);
|
|
virtual DeclGroupPtrTy FinalizeDeclaratorGroup(Scope *S, const DeclSpec &DS,
|
|
DeclPtrTy *Group,
|
|
unsigned NumDecls);
|
|
virtual void ActOnFinishKNRParamDeclarations(Scope *S, Declarator &D,
|
|
SourceLocation LocAfterDecls);
|
|
virtual DeclPtrTy ActOnStartOfFunctionDef(Scope *S, Declarator &D);
|
|
virtual DeclPtrTy ActOnStartOfFunctionDef(Scope *S, DeclPtrTy D);
|
|
virtual void ActOnStartOfObjCMethodDef(Scope *S, DeclPtrTy D);
|
|
|
|
virtual DeclPtrTy ActOnFinishFunctionBody(DeclPtrTy Decl, StmtArg Body);
|
|
DeclPtrTy ActOnFinishFunctionBody(DeclPtrTy Decl, StmtArg Body,
|
|
bool IsInstantiation);
|
|
|
|
/// \brief Diagnose any unused parameters in the given sequence of
|
|
/// ParmVarDecl pointers.
|
|
template<typename InputIterator>
|
|
void DiagnoseUnusedParameters(InputIterator Param, InputIterator ParamEnd) {
|
|
for (; Param != ParamEnd; ++Param) {
|
|
if (!(*Param)->isUsed() && (*Param)->getDeclName() &&
|
|
!(*Param)->template hasAttr<UnusedAttr>())
|
|
Diag((*Param)->getLocation(), diag::warn_unused_parameter)
|
|
<< (*Param)->getDeclName();
|
|
}
|
|
}
|
|
|
|
void DiagnoseInvalidJumps(Stmt *Body);
|
|
virtual DeclPtrTy ActOnFileScopeAsmDecl(SourceLocation Loc, ExprArg expr);
|
|
|
|
/// Scope actions.
|
|
virtual void ActOnPopScope(SourceLocation Loc, Scope *S);
|
|
virtual void ActOnTranslationUnitScope(SourceLocation Loc, Scope *S);
|
|
|
|
/// ParsedFreeStandingDeclSpec - This method is invoked when a declspec with
|
|
/// no declarator (e.g. "struct foo;") is parsed.
|
|
virtual DeclPtrTy ParsedFreeStandingDeclSpec(Scope *S, DeclSpec &DS);
|
|
|
|
bool InjectAnonymousStructOrUnionMembers(Scope *S, DeclContext *Owner,
|
|
RecordDecl *AnonRecord);
|
|
virtual DeclPtrTy BuildAnonymousStructOrUnion(Scope *S, DeclSpec &DS,
|
|
RecordDecl *Record);
|
|
|
|
bool isAcceptableTagRedeclaration(const TagDecl *Previous,
|
|
TagDecl::TagKind NewTag,
|
|
SourceLocation NewTagLoc,
|
|
const IdentifierInfo &Name);
|
|
|
|
virtual DeclPtrTy ActOnTag(Scope *S, unsigned TagSpec, TagUseKind TUK,
|
|
SourceLocation KWLoc, const CXXScopeSpec &SS,
|
|
IdentifierInfo *Name, SourceLocation NameLoc,
|
|
AttributeList *Attr, AccessSpecifier AS,
|
|
MultiTemplateParamsArg TemplateParameterLists,
|
|
bool &OwnedDecl, bool &IsDependent);
|
|
|
|
virtual TypeResult ActOnDependentTag(Scope *S,
|
|
unsigned TagSpec,
|
|
TagUseKind TUK,
|
|
const CXXScopeSpec &SS,
|
|
IdentifierInfo *Name,
|
|
SourceLocation TagLoc,
|
|
SourceLocation NameLoc);
|
|
|
|
virtual void ActOnDefs(Scope *S, DeclPtrTy TagD, SourceLocation DeclStart,
|
|
IdentifierInfo *ClassName,
|
|
llvm::SmallVectorImpl<DeclPtrTy> &Decls);
|
|
virtual DeclPtrTy ActOnField(Scope *S, DeclPtrTy TagD,
|
|
SourceLocation DeclStart,
|
|
Declarator &D, ExprTy *BitfieldWidth);
|
|
|
|
FieldDecl *HandleField(Scope *S, RecordDecl *TagD, SourceLocation DeclStart,
|
|
Declarator &D, Expr *BitfieldWidth,
|
|
AccessSpecifier AS);
|
|
|
|
FieldDecl *CheckFieldDecl(DeclarationName Name, QualType T,
|
|
DeclaratorInfo *DInfo,
|
|
RecordDecl *Record, SourceLocation Loc,
|
|
bool Mutable, Expr *BitfieldWidth,
|
|
SourceLocation TSSL,
|
|
AccessSpecifier AS, NamedDecl *PrevDecl,
|
|
Declarator *D = 0);
|
|
|
|
enum CXXSpecialMember {
|
|
CXXDefaultConstructor = 0,
|
|
CXXCopyConstructor = 1,
|
|
CXXCopyAssignment = 2,
|
|
CXXDestructor = 3
|
|
};
|
|
void DiagnoseNontrivial(const RecordType* Record, CXXSpecialMember mem);
|
|
|
|
virtual DeclPtrTy ActOnIvar(Scope *S, SourceLocation DeclStart,
|
|
DeclPtrTy IntfDecl,
|
|
Declarator &D, ExprTy *BitfieldWidth,
|
|
tok::ObjCKeywordKind visibility);
|
|
|
|
// This is used for both record definitions and ObjC interface declarations.
|
|
virtual void ActOnFields(Scope* S,
|
|
SourceLocation RecLoc, DeclPtrTy TagDecl,
|
|
DeclPtrTy *Fields, unsigned NumFields,
|
|
SourceLocation LBrac, SourceLocation RBrac,
|
|
AttributeList *AttrList);
|
|
|
|
/// ActOnTagStartDefinition - Invoked when we have entered the
|
|
/// scope of a tag's definition (e.g., for an enumeration, class,
|
|
/// struct, or union).
|
|
virtual void ActOnTagStartDefinition(Scope *S, DeclPtrTy TagDecl);
|
|
|
|
/// ActOnTagFinishDefinition - Invoked once we have finished parsing
|
|
/// the definition of a tag (enumeration, class, struct, or union).
|
|
virtual void ActOnTagFinishDefinition(Scope *S, DeclPtrTy TagDecl,
|
|
SourceLocation RBraceLoc);
|
|
|
|
EnumConstantDecl *CheckEnumConstant(EnumDecl *Enum,
|
|
EnumConstantDecl *LastEnumConst,
|
|
SourceLocation IdLoc,
|
|
IdentifierInfo *Id,
|
|
ExprArg val);
|
|
|
|
virtual DeclPtrTy ActOnEnumConstant(Scope *S, DeclPtrTy EnumDecl,
|
|
DeclPtrTy LastEnumConstant,
|
|
SourceLocation IdLoc, IdentifierInfo *Id,
|
|
SourceLocation EqualLoc, ExprTy *Val);
|
|
virtual void ActOnEnumBody(SourceLocation EnumLoc, SourceLocation LBraceLoc,
|
|
SourceLocation RBraceLoc, DeclPtrTy EnumDecl,
|
|
DeclPtrTy *Elements, unsigned NumElements,
|
|
Scope *S, AttributeList *Attr);
|
|
|
|
DeclContext *getContainingDC(DeclContext *DC);
|
|
|
|
/// Set the current declaration context until it gets popped.
|
|
void PushDeclContext(Scope *S, DeclContext *DC);
|
|
void PopDeclContext();
|
|
|
|
/// EnterDeclaratorContext - Used when we must lookup names in the context
|
|
/// of a declarator's nested name specifier.
|
|
void EnterDeclaratorContext(Scope *S, DeclContext *DC);
|
|
void ExitDeclaratorContext(Scope *S);
|
|
|
|
DeclContext *getFunctionLevelDeclContext();
|
|
|
|
/// getCurFunctionDecl - If inside of a function body, this returns a pointer
|
|
/// to the function decl for the function being parsed. If we're currently
|
|
/// in a 'block', this returns the containing context.
|
|
FunctionDecl *getCurFunctionDecl();
|
|
|
|
/// getCurMethodDecl - If inside of a method body, this returns a pointer to
|
|
/// the method decl for the method being parsed. If we're currently
|
|
/// in a 'block', this returns the containing context.
|
|
ObjCMethodDecl *getCurMethodDecl();
|
|
|
|
/// getCurFunctionOrMethodDecl - Return the Decl for the current ObjC method
|
|
/// or C function we're in, otherwise return null. If we're currently
|
|
/// in a 'block', this returns the containing context.
|
|
NamedDecl *getCurFunctionOrMethodDecl();
|
|
|
|
/// Add this decl to the scope shadowed decl chains.
|
|
void PushOnScopeChains(NamedDecl *D, Scope *S, bool AddToContext = true);
|
|
|
|
/// isDeclInScope - If 'Ctx' is a function/method, isDeclInScope returns true
|
|
/// if 'D' is in Scope 'S', otherwise 'S' is ignored and isDeclInScope returns
|
|
/// true if 'D' belongs to the given declaration context.
|
|
bool isDeclInScope(Decl *D, DeclContext *Ctx, Scope *S = 0) {
|
|
return IdResolver.isDeclInScope(D, Ctx, Context, S);
|
|
}
|
|
|
|
/// Finds the scope corresponding to the given decl context, if it
|
|
/// happens to be an enclosing scope. Otherwise return NULL.
|
|
Scope *getScopeForDeclContext(Scope *S, DeclContext *DC) {
|
|
DeclContext *TargetDC = DC->getPrimaryContext();
|
|
do {
|
|
if (DeclContext *ScopeDC = (DeclContext*) S->getEntity())
|
|
if (ScopeDC->getPrimaryContext() == TargetDC)
|
|
return S;
|
|
} while ((S = S->getParent()));
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/// OverloadingResult - Capture the result of performing overload
|
|
/// resolution.
|
|
enum OverloadingResult {
|
|
OR_Success, ///< Overload resolution succeeded.
|
|
OR_No_Viable_Function, ///< No viable function found.
|
|
OR_Ambiguous, ///< Ambiguous candidates found.
|
|
OR_Deleted ///< Overload resoltuion refers to a deleted function.
|
|
};
|
|
|
|
|
|
/// Subroutines of ActOnDeclarator().
|
|
TypedefDecl *ParseTypedefDecl(Scope *S, Declarator &D, QualType T);
|
|
void MergeTypeDefDecl(TypedefDecl *New, Decl *Old);
|
|
bool MergeFunctionDecl(FunctionDecl *New, Decl *Old);
|
|
bool MergeCompatibleFunctionDecls(FunctionDecl *New, FunctionDecl *Old);
|
|
void MergeVarDecl(VarDecl *New, Decl *Old);
|
|
bool MergeCXXFunctionDecl(FunctionDecl *New, FunctionDecl *Old);
|
|
|
|
/// C++ Overloading.
|
|
bool IsOverload(FunctionDecl *New, Decl* OldD,
|
|
OverloadedFunctionDecl::function_iterator &MatchedDecl);
|
|
ImplicitConversionSequence
|
|
TryImplicitConversion(Expr* From, QualType ToType,
|
|
bool SuppressUserConversions,
|
|
bool AllowExplicit,
|
|
bool ForceRValue,
|
|
bool InOverloadResolution);
|
|
bool IsStandardConversion(Expr *From, QualType ToType,
|
|
bool InOverloadResolution,
|
|
StandardConversionSequence& SCS);
|
|
bool IsIntegralPromotion(Expr *From, QualType FromType, QualType ToType);
|
|
bool IsFloatingPointPromotion(QualType FromType, QualType ToType);
|
|
bool IsComplexPromotion(QualType FromType, QualType ToType);
|
|
bool IsPointerConversion(Expr *From, QualType FromType, QualType ToType,
|
|
bool InOverloadResolution,
|
|
QualType& ConvertedType, bool &IncompatibleObjC);
|
|
bool isObjCPointerConversion(QualType FromType, QualType ToType,
|
|
QualType& ConvertedType, bool &IncompatibleObjC);
|
|
bool CheckPointerConversion(Expr *From, QualType ToType,
|
|
CastExpr::CastKind &Kind);
|
|
bool IsMemberPointerConversion(Expr *From, QualType FromType, QualType ToType,
|
|
QualType &ConvertedType);
|
|
bool CheckMemberPointerConversion(Expr *From, QualType ToType,
|
|
CastExpr::CastKind &Kind);
|
|
bool IsQualificationConversion(QualType FromType, QualType ToType);
|
|
OverloadingResult IsUserDefinedConversion(Expr *From, QualType ToType,
|
|
UserDefinedConversionSequence& User,
|
|
OverloadCandidateSet& Conversions,
|
|
bool AllowConversionFunctions,
|
|
bool AllowExplicit, bool ForceRValue);
|
|
|
|
ImplicitConversionSequence::CompareKind
|
|
CompareImplicitConversionSequences(const ImplicitConversionSequence& ICS1,
|
|
const ImplicitConversionSequence& ICS2);
|
|
|
|
ImplicitConversionSequence::CompareKind
|
|
CompareStandardConversionSequences(const StandardConversionSequence& SCS1,
|
|
const StandardConversionSequence& SCS2);
|
|
|
|
ImplicitConversionSequence::CompareKind
|
|
CompareQualificationConversions(const StandardConversionSequence& SCS1,
|
|
const StandardConversionSequence& SCS2);
|
|
|
|
ImplicitConversionSequence::CompareKind
|
|
CompareDerivedToBaseConversions(const StandardConversionSequence& SCS1,
|
|
const StandardConversionSequence& SCS2);
|
|
|
|
ImplicitConversionSequence
|
|
TryCopyInitialization(Expr* From, QualType ToType,
|
|
bool SuppressUserConversions, bool ForceRValue,
|
|
bool InOverloadResolution);
|
|
bool PerformCopyInitialization(Expr *&From, QualType ToType,
|
|
const char *Flavor, bool Elidable = false);
|
|
|
|
ImplicitConversionSequence
|
|
TryObjectArgumentInitialization(Expr *From, CXXMethodDecl *Method);
|
|
bool PerformObjectArgumentInitialization(Expr *&From, CXXMethodDecl *Method);
|
|
|
|
ImplicitConversionSequence TryContextuallyConvertToBool(Expr *From);
|
|
bool PerformContextuallyConvertToBool(Expr *&From);
|
|
|
|
bool PerformObjectMemberConversion(Expr *&From, NamedDecl *Member);
|
|
|
|
// Members have to be NamespaceDecl* or TranslationUnitDecl*.
|
|
// TODO: make this is a typesafe union.
|
|
typedef llvm::SmallPtrSet<DeclContext *, 16> AssociatedNamespaceSet;
|
|
|
|
typedef llvm::SmallPtrSet<AnyFunctionDecl, 16> FunctionSet;
|
|
typedef llvm::SmallPtrSet<CXXRecordDecl *, 16> AssociatedClassSet;
|
|
|
|
void AddOverloadCandidate(FunctionDecl *Function,
|
|
Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet& CandidateSet,
|
|
bool SuppressUserConversions = false,
|
|
bool ForceRValue = false,
|
|
bool PartialOverloading = false);
|
|
void AddFunctionCandidates(const FunctionSet &Functions,
|
|
Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet& CandidateSet,
|
|
bool SuppressUserConversions = false);
|
|
void AddMethodCandidate(CXXMethodDecl *Method,
|
|
Expr *Object, Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet& CandidateSet,
|
|
bool SuppressUserConversions = false,
|
|
bool ForceRValue = false);
|
|
void AddMethodTemplateCandidate(FunctionTemplateDecl *MethodTmpl,
|
|
bool HasExplicitTemplateArgs,
|
|
const TemplateArgument *ExplicitTemplateArgs,
|
|
unsigned NumExplicitTemplateArgs,
|
|
Expr *Object, Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet& CandidateSet,
|
|
bool SuppressUserConversions = false,
|
|
bool ForceRValue = false);
|
|
void AddTemplateOverloadCandidate(FunctionTemplateDecl *FunctionTemplate,
|
|
bool HasExplicitTemplateArgs,
|
|
const TemplateArgument *ExplicitTemplateArgs,
|
|
unsigned NumExplicitTemplateArgs,
|
|
Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet& CandidateSet,
|
|
bool SuppressUserConversions = false,
|
|
bool ForceRValue = false);
|
|
void AddConversionCandidate(CXXConversionDecl *Conversion,
|
|
Expr *From, QualType ToType,
|
|
OverloadCandidateSet& CandidateSet);
|
|
void AddTemplateConversionCandidate(FunctionTemplateDecl *FunctionTemplate,
|
|
Expr *From, QualType ToType,
|
|
OverloadCandidateSet &CandidateSet);
|
|
void AddSurrogateCandidate(CXXConversionDecl *Conversion,
|
|
const FunctionProtoType *Proto,
|
|
Expr *Object, Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet& CandidateSet);
|
|
void AddOperatorCandidates(OverloadedOperatorKind Op, Scope *S,
|
|
SourceLocation OpLoc,
|
|
Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet& CandidateSet,
|
|
SourceRange OpRange = SourceRange());
|
|
void AddMemberOperatorCandidates(OverloadedOperatorKind Op,
|
|
SourceLocation OpLoc,
|
|
Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet& CandidateSet,
|
|
SourceRange OpRange = SourceRange());
|
|
void AddBuiltinCandidate(QualType ResultTy, QualType *ParamTys,
|
|
Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet& CandidateSet,
|
|
bool IsAssignmentOperator = false,
|
|
unsigned NumContextualBoolArguments = 0);
|
|
void AddBuiltinOperatorCandidates(OverloadedOperatorKind Op,
|
|
Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet& CandidateSet);
|
|
void AddArgumentDependentLookupCandidates(DeclarationName Name,
|
|
Expr **Args, unsigned NumArgs,
|
|
bool HasExplicitTemplateArgs,
|
|
const TemplateArgument *ExplicitTemplateArgs,
|
|
unsigned NumExplicitTemplateArgs,
|
|
OverloadCandidateSet& CandidateSet,
|
|
bool PartialOverloading = false);
|
|
bool isBetterOverloadCandidate(const OverloadCandidate& Cand1,
|
|
const OverloadCandidate& Cand2);
|
|
OverloadingResult BestViableFunction(OverloadCandidateSet& CandidateSet,
|
|
SourceLocation Loc,
|
|
OverloadCandidateSet::iterator& Best);
|
|
void PrintOverloadCandidates(OverloadCandidateSet& CandidateSet,
|
|
bool OnlyViable);
|
|
|
|
FunctionDecl *ResolveAddressOfOverloadedFunction(Expr *From, QualType ToType,
|
|
bool Complain);
|
|
void FixOverloadedFunctionReference(Expr *E, FunctionDecl *Fn);
|
|
|
|
void AddOverloadedCallCandidates(NamedDecl *Callee,
|
|
DeclarationName &UnqualifiedName,
|
|
bool &ArgumentDependentLookup,
|
|
bool HasExplicitTemplateArgs,
|
|
const TemplateArgument *ExplicitTemplateArgs,
|
|
unsigned NumExplicitTemplateArgs,
|
|
Expr **Args, unsigned NumArgs,
|
|
OverloadCandidateSet &CandidateSet,
|
|
bool PartialOverloading = false);
|
|
|
|
FunctionDecl *ResolveOverloadedCallFn(Expr *Fn, NamedDecl *Callee,
|
|
DeclarationName UnqualifiedName,
|
|
bool HasExplicitTemplateArgs,
|
|
const TemplateArgument *ExplicitTemplateArgs,
|
|
unsigned NumExplicitTemplateArgs,
|
|
SourceLocation LParenLoc,
|
|
Expr **Args, unsigned NumArgs,
|
|
SourceLocation *CommaLocs,
|
|
SourceLocation RParenLoc,
|
|
bool &ArgumentDependentLookup);
|
|
|
|
OwningExprResult CreateOverloadedUnaryOp(SourceLocation OpLoc,
|
|
unsigned Opc,
|
|
FunctionSet &Functions,
|
|
ExprArg input);
|
|
|
|
OwningExprResult CreateOverloadedBinOp(SourceLocation OpLoc,
|
|
unsigned Opc,
|
|
FunctionSet &Functions,
|
|
Expr *LHS, Expr *RHS);
|
|
|
|
ExprResult
|
|
BuildCallToMemberFunction(Scope *S, Expr *MemExpr,
|
|
SourceLocation LParenLoc, Expr **Args,
|
|
unsigned NumArgs, SourceLocation *CommaLocs,
|
|
SourceLocation RParenLoc);
|
|
ExprResult
|
|
BuildCallToObjectOfClassType(Scope *S, Expr *Object, SourceLocation LParenLoc,
|
|
Expr **Args, unsigned NumArgs,
|
|
SourceLocation *CommaLocs,
|
|
SourceLocation RParenLoc);
|
|
|
|
OwningExprResult BuildOverloadedArrowExpr(Scope *S, ExprArg Base,
|
|
SourceLocation OpLoc);
|
|
|
|
/// Helpers for dealing with blocks and functions.
|
|
void CheckFallThroughForFunctionDef(Decl *D, Stmt *Body);
|
|
void CheckFallThroughForBlock(QualType BlockTy, Stmt *Body);
|
|
bool CheckParmsForFunctionDef(FunctionDecl *FD);
|
|
void CheckCXXDefaultArguments(FunctionDecl *FD);
|
|
void CheckExtraCXXDefaultArguments(Declarator &D);
|
|
enum ControlFlowKind { NeverFallThrough = 0, MaybeFallThrough = 1,
|
|
AlwaysFallThrough = 2 };
|
|
ControlFlowKind CheckFallThrough(Stmt *);
|
|
|
|
Scope *getNonFieldDeclScope(Scope *S);
|
|
|
|
/// \name Name lookup
|
|
///
|
|
/// These routines provide name lookup that is used during semantic
|
|
/// analysis to resolve the various kinds of names (identifiers,
|
|
/// overloaded operator names, constructor names, etc.) into zero or
|
|
/// more declarations within a particular scope. The major entry
|
|
/// points are LookupName, which performs unqualified name lookup,
|
|
/// and LookupQualifiedName, which performs qualified name lookup.
|
|
///
|
|
/// All name lookup is performed based on some specific criteria,
|
|
/// which specify what names will be visible to name lookup and how
|
|
/// far name lookup should work. These criteria are important both
|
|
/// for capturing language semantics (certain lookups will ignore
|
|
/// certain names, for example) and for performance, since name
|
|
/// lookup is often a bottleneck in the compilation of C++. Name
|
|
/// lookup criteria is specified via the LookupCriteria enumeration.
|
|
///
|
|
/// The results of name lookup can vary based on the kind of name
|
|
/// lookup performed, the current language, and the translation
|
|
/// unit. In C, for example, name lookup will either return nothing
|
|
/// (no entity found) or a single declaration. In C++, name lookup
|
|
/// can additionally refer to a set of overloaded functions or
|
|
/// result in an ambiguity. All of the possible results of name
|
|
/// lookup are captured by the LookupResult class, which provides
|
|
/// the ability to distinguish among them.
|
|
//@{
|
|
|
|
/// @brief Describes the kind of name lookup to perform.
|
|
enum LookupNameKind {
|
|
/// Ordinary name lookup, which finds ordinary names (functions,
|
|
/// variables, typedefs, etc.) in C and most kinds of names
|
|
/// (functions, variables, members, types, etc.) in C++.
|
|
LookupOrdinaryName = 0,
|
|
/// Tag name lookup, which finds the names of enums, classes,
|
|
/// structs, and unions.
|
|
LookupTagName,
|
|
/// Member name lookup, which finds the names of
|
|
/// class/struct/union members.
|
|
LookupMemberName,
|
|
// Look up of an operator name (e.g., operator+) for use with
|
|
// operator overloading. This lookup is similar to ordinary name
|
|
// lookup, but will ignore any declarations that are class
|
|
// members.
|
|
LookupOperatorName,
|
|
/// Look up of a name that precedes the '::' scope resolution
|
|
/// operator in C++. This lookup completely ignores operator,
|
|
/// function, and enumerator names (C++ [basic.lookup.qual]p1).
|
|
LookupNestedNameSpecifierName,
|
|
/// Look up a namespace name within a C++ using directive or
|
|
/// namespace alias definition, ignoring non-namespace names (C++
|
|
/// [basic.lookup.udir]p1).
|
|
LookupNamespaceName,
|
|
/// Look up an ordinary name that is going to be redeclared as a
|
|
/// name with linkage. This lookup ignores any declarations that
|
|
/// are outside of the current scope unless they have linkage. See
|
|
/// C99 6.2.2p4-5 and C++ [basic.link]p6.
|
|
LookupRedeclarationWithLinkage,
|
|
/// Look up the name of an Objective-C protocol.
|
|
LookupObjCProtocolName,
|
|
/// Look up the name of an Objective-C implementation
|
|
LookupObjCImplementationName,
|
|
/// Look up the name of an Objective-C category implementation
|
|
LookupObjCCategoryImplName
|
|
};
|
|
|
|
/// @brief Represents the results of name lookup.
|
|
///
|
|
/// An instance of the LookupResult class captures the results of a
|
|
/// single name lookup, which can return no result (nothing found),
|
|
/// a single declaration, a set of overloaded functions, or an
|
|
/// ambiguity. Use the getKind() method to determine which of these
|
|
/// results occurred for a given lookup.
|
|
///
|
|
/// Any non-ambiguous lookup can be converted into a single
|
|
/// (possibly NULL) @c NamedDecl* via a conversion function or the
|
|
/// getAsDecl() method. This conversion permits the common-case
|
|
/// usage in C and Objective-C where name lookup will always return
|
|
/// a single declaration.
|
|
struct LookupResult {
|
|
/// The kind of entity that is actually stored within the
|
|
/// LookupResult object.
|
|
enum {
|
|
/// First is a single declaration (a NamedDecl*), which may be NULL.
|
|
SingleDecl,
|
|
|
|
/// First is a single declaration (an OverloadedFunctionDecl*).
|
|
OverloadedDeclSingleDecl,
|
|
|
|
/// [First, Last) is an iterator range represented as opaque
|
|
/// pointers used to reconstruct IdentifierResolver::iterators.
|
|
OverloadedDeclFromIdResolver,
|
|
|
|
/// [First, Last) is an iterator range represented as opaque
|
|
/// pointers used to reconstruct DeclContext::lookup_iterators.
|
|
OverloadedDeclFromDeclContext,
|
|
|
|
/// First is a pointer to a BasePaths structure, which is owned
|
|
/// by the LookupResult. Last is non-zero to indicate that the
|
|
/// ambiguity is caused by two names found in base class
|
|
/// subobjects of different types.
|
|
AmbiguousLookupStoresBasePaths,
|
|
|
|
/// [First, Last) is an iterator range represented as opaque
|
|
/// pointers used to reconstruct new'ed Decl*[] array containing
|
|
/// found ambiguous decls. LookupResult is owner of this array.
|
|
AmbiguousLookupStoresDecls
|
|
} StoredKind;
|
|
|
|
/// The first lookup result, whose contents depend on the kind of
|
|
/// lookup result. This may be a NamedDecl* (if StoredKind ==
|
|
/// SingleDecl), OverloadedFunctionDecl* (if StoredKind ==
|
|
/// OverloadedDeclSingleDecl), the opaque pointer from an
|
|
/// IdentifierResolver::iterator (if StoredKind ==
|
|
/// OverloadedDeclFromIdResolver), a DeclContext::lookup_iterator
|
|
/// (if StoredKind == OverloadedDeclFromDeclContext), or a
|
|
/// BasePaths pointer (if StoredKind == AmbiguousLookupStoresBasePaths).
|
|
mutable uintptr_t First;
|
|
|
|
/// The last lookup result, whose contents depend on the kind of
|
|
/// lookup result. This may be unused (if StoredKind ==
|
|
/// SingleDecl), it may have the same type as First (for
|
|
/// overloaded function declarations), or is may be used as a
|
|
/// Boolean value (if StoredKind == AmbiguousLookupStoresBasePaths).
|
|
mutable uintptr_t Last;
|
|
|
|
/// Context - The context in which we will build any
|
|
/// OverloadedFunctionDecl nodes needed by the conversion to
|
|
/// Decl*.
|
|
ASTContext *Context;
|
|
|
|
/// @brief The kind of entity found by name lookup.
|
|
enum LookupKind {
|
|
/// @brief No entity found met the criteria.
|
|
NotFound = 0,
|
|
|
|
/// @brief Name lookup found a single declaration that met the
|
|
/// criteria. getAsDecl will return this declaration.
|
|
Found,
|
|
|
|
/// @brief Name lookup found a set of overloaded functions that
|
|
/// met the criteria. getAsDecl will turn this set of overloaded
|
|
/// functions into an OverloadedFunctionDecl.
|
|
FoundOverloaded,
|
|
|
|
/// Name lookup results in an ambiguity because multiple
|
|
/// entities that meet the lookup criteria were found in
|
|
/// subobjects of different types. For example:
|
|
/// @code
|
|
/// struct A { void f(int); }
|
|
/// struct B { void f(double); }
|
|
/// struct C : A, B { };
|
|
/// void test(C c) {
|
|
/// c.f(0); // error: A::f and B::f come from subobjects of different
|
|
/// // types. overload resolution is not performed.
|
|
/// }
|
|
/// @endcode
|
|
AmbiguousBaseSubobjectTypes,
|
|
|
|
/// Name lookup results in an ambiguity because multiple
|
|
/// nonstatic entities that meet the lookup criteria were found
|
|
/// in different subobjects of the same type. For example:
|
|
/// @code
|
|
/// struct A { int x; };
|
|
/// struct B : A { };
|
|
/// struct C : A { };
|
|
/// struct D : B, C { };
|
|
/// int test(D d) {
|
|
/// return d.x; // error: 'x' is found in two A subobjects (of B and C)
|
|
/// }
|
|
/// @endcode
|
|
AmbiguousBaseSubobjects,
|
|
|
|
/// Name lookup results in an ambiguity because multiple definitions
|
|
/// of entity that meet the lookup criteria were found in different
|
|
/// declaration contexts.
|
|
/// @code
|
|
/// namespace A {
|
|
/// int i;
|
|
/// namespace B { int i; }
|
|
/// int test() {
|
|
/// using namespace B;
|
|
/// return i; // error 'i' is found in namespace A and A::B
|
|
/// }
|
|
/// }
|
|
/// @endcode
|
|
AmbiguousReference
|
|
};
|
|
|
|
static LookupResult CreateLookupResult(ASTContext &Context, NamedDecl *D);
|
|
|
|
static LookupResult CreateLookupResult(ASTContext &Context,
|
|
IdentifierResolver::iterator F,
|
|
IdentifierResolver::iterator L);
|
|
|
|
static LookupResult CreateLookupResult(ASTContext &Context,
|
|
DeclContext::lookup_iterator F,
|
|
DeclContext::lookup_iterator L);
|
|
|
|
static LookupResult CreateLookupResult(ASTContext &Context, BasePaths *Paths,
|
|
bool DifferentSubobjectTypes) {
|
|
LookupResult Result;
|
|
Result.StoredKind = AmbiguousLookupStoresBasePaths;
|
|
Result.First = reinterpret_cast<uintptr_t>(Paths);
|
|
Result.Last = DifferentSubobjectTypes? 1 : 0;
|
|
Result.Context = &Context;
|
|
return Result;
|
|
}
|
|
|
|
template <typename Iterator>
|
|
static LookupResult CreateLookupResult(ASTContext &Context,
|
|
Iterator B, std::size_t Len) {
|
|
NamedDecl ** Array = new NamedDecl*[Len];
|
|
for (std::size_t Idx = 0; Idx < Len; ++Idx, ++B)
|
|
Array[Idx] = *B;
|
|
LookupResult Result;
|
|
Result.StoredKind = AmbiguousLookupStoresDecls;
|
|
Result.First = reinterpret_cast<uintptr_t>(Array);
|
|
Result.Last = reinterpret_cast<uintptr_t>(Array + Len);
|
|
Result.Context = &Context;
|
|
return Result;
|
|
}
|
|
|
|
LookupKind getKind() const;
|
|
|
|
/// @brief Determine whether name look found something.
|
|
operator bool() const { return getKind() != NotFound; }
|
|
|
|
/// @brief Determines whether the lookup resulted in an ambiguity.
|
|
bool isAmbiguous() const {
|
|
return StoredKind == AmbiguousLookupStoresBasePaths ||
|
|
StoredKind == AmbiguousLookupStoresDecls;
|
|
}
|
|
|
|
/// @brief Allows conversion of a lookup result into a
|
|
/// declaration, with the same behavior as getAsDecl.
|
|
operator NamedDecl*() const { return getAsDecl(); }
|
|
|
|
NamedDecl* getAsDecl() const;
|
|
|
|
BasePaths *getBasePaths() const;
|
|
|
|
/// \brief Iterate over the results of name lookup.
|
|
///
|
|
/// The @c iterator class provides iteration over the results of a
|
|
/// non-ambiguous name lookup.
|
|
class iterator {
|
|
/// The LookupResult structure we're iterating through.
|
|
LookupResult *Result;
|
|
|
|
/// The current position of this iterator within the sequence of
|
|
/// results. This value will have the same representation as the
|
|
/// @c First field in the LookupResult structure.
|
|
mutable uintptr_t Current;
|
|
|
|
public:
|
|
typedef NamedDecl * value_type;
|
|
typedef NamedDecl * reference;
|
|
typedef NamedDecl * pointer;
|
|
typedef std::ptrdiff_t difference_type;
|
|
typedef std::forward_iterator_tag iterator_category;
|
|
|
|
iterator() : Result(0), Current(0) { }
|
|
|
|
iterator(LookupResult *Res, uintptr_t Cur) : Result(Res), Current(Cur) { }
|
|
|
|
reference operator*() const;
|
|
|
|
pointer operator->() const { return **this; }
|
|
|
|
iterator &operator++();
|
|
|
|
iterator operator++(int) {
|
|
iterator tmp(*this);
|
|
++(*this);
|
|
return tmp;
|
|
}
|
|
|
|
friend inline bool operator==(iterator const& x, iterator const& y) {
|
|
return x.Current == y.Current;
|
|
}
|
|
|
|
friend inline bool operator!=(iterator const& x, iterator const& y) {
|
|
return x.Current != y.Current;
|
|
}
|
|
};
|
|
friend class iterator;
|
|
|
|
iterator begin();
|
|
iterator end();
|
|
|
|
/// \brief Free the memory associated with this lookup.
|
|
void Destroy();
|
|
};
|
|
|
|
private:
|
|
typedef llvm::SmallVector<LookupResult, 3> LookupResultsVecTy;
|
|
|
|
std::pair<bool, LookupResult> CppLookupName(Scope *S, DeclarationName Name,
|
|
LookupNameKind NameKind,
|
|
bool RedeclarationOnly);
|
|
ObjCMethodDecl *FindMethodInNestedImplementations(
|
|
const ObjCInterfaceDecl *IFace,
|
|
const Selector &Sel);
|
|
|
|
public:
|
|
/// Determines whether D is a suitable lookup result according to the
|
|
/// lookup criteria.
|
|
static bool isAcceptableLookupResult(NamedDecl *D, LookupNameKind NameKind,
|
|
unsigned IDNS) {
|
|
switch (NameKind) {
|
|
case Sema::LookupOrdinaryName:
|
|
case Sema::LookupTagName:
|
|
case Sema::LookupMemberName:
|
|
case Sema::LookupRedeclarationWithLinkage: // FIXME: check linkage, scoping
|
|
case Sema::LookupObjCProtocolName:
|
|
case Sema::LookupObjCImplementationName:
|
|
case Sema::LookupObjCCategoryImplName:
|
|
return D->isInIdentifierNamespace(IDNS);
|
|
|
|
case Sema::LookupOperatorName:
|
|
return D->isInIdentifierNamespace(IDNS) &&
|
|
!D->getDeclContext()->isRecord();
|
|
|
|
case Sema::LookupNestedNameSpecifierName:
|
|
return isa<TypedefDecl>(D) || D->isInIdentifierNamespace(Decl::IDNS_Tag);
|
|
|
|
case Sema::LookupNamespaceName:
|
|
return isa<NamespaceDecl>(D) || isa<NamespaceAliasDecl>(D);
|
|
}
|
|
|
|
assert(false &&
|
|
"isAcceptableLookupResult always returns before this point");
|
|
return false;
|
|
}
|
|
|
|
LookupResult LookupName(Scope *S, DeclarationName Name,
|
|
LookupNameKind NameKind,
|
|
bool RedeclarationOnly = false,
|
|
bool AllowBuiltinCreation = false,
|
|
SourceLocation Loc = SourceLocation());
|
|
LookupResult LookupQualifiedName(DeclContext *LookupCtx, DeclarationName Name,
|
|
LookupNameKind NameKind,
|
|
bool RedeclarationOnly = false);
|
|
Decl *LookupQualifiedNameWithType(DeclContext *LookupCtx,
|
|
DeclarationName Name,
|
|
QualType T);
|
|
LookupResult LookupParsedName(Scope *S, const CXXScopeSpec *SS,
|
|
DeclarationName Name,
|
|
LookupNameKind NameKind,
|
|
bool RedeclarationOnly = false,
|
|
bool AllowBuiltinCreation = false,
|
|
SourceLocation Loc = SourceLocation(),
|
|
bool EnteringContext = false);
|
|
|
|
ObjCProtocolDecl *LookupProtocol(IdentifierInfo *II);
|
|
ObjCCategoryImplDecl *LookupObjCCategoryImpl(IdentifierInfo *II);
|
|
|
|
void LookupOverloadedOperatorName(OverloadedOperatorKind Op, Scope *S,
|
|
QualType T1, QualType T2,
|
|
FunctionSet &Functions);
|
|
|
|
void ArgumentDependentLookup(DeclarationName Name,
|
|
Expr **Args, unsigned NumArgs,
|
|
FunctionSet &Functions);
|
|
|
|
void FindAssociatedClassesAndNamespaces(Expr **Args, unsigned NumArgs,
|
|
AssociatedNamespaceSet &AssociatedNamespaces,
|
|
AssociatedClassSet &AssociatedClasses);
|
|
|
|
bool DiagnoseAmbiguousLookup(LookupResult &Result, DeclarationName Name,
|
|
SourceLocation NameLoc,
|
|
SourceRange LookupRange = SourceRange());
|
|
//@}
|
|
|
|
ObjCInterfaceDecl *getObjCInterfaceDecl(IdentifierInfo *Id);
|
|
NamedDecl *LazilyCreateBuiltin(IdentifierInfo *II, unsigned ID,
|
|
Scope *S, bool ForRedeclaration,
|
|
SourceLocation Loc);
|
|
NamedDecl *ImplicitlyDefineFunction(SourceLocation Loc, IdentifierInfo &II,
|
|
Scope *S);
|
|
void AddKnownFunctionAttributes(FunctionDecl *FD);
|
|
|
|
// More parsing and symbol table subroutines.
|
|
|
|
// Decl attributes - this routine is the top level dispatcher.
|
|
void ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD);
|
|
void ProcessDeclAttributeList(Scope *S, Decl *D, const AttributeList *AttrList);
|
|
|
|
void WarnUndefinedMethod(SourceLocation ImpLoc, ObjCMethodDecl *method,
|
|
bool &IncompleteImpl);
|
|
void WarnConflictingTypedMethods(ObjCMethodDecl *ImpMethod,
|
|
ObjCMethodDecl *IntfMethod);
|
|
|
|
bool isPropertyReadonly(ObjCPropertyDecl *PropertyDecl,
|
|
ObjCInterfaceDecl *IDecl);
|
|
|
|
/// CheckProtocolMethodDefs - This routine checks unimplemented
|
|
/// methods declared in protocol, and those referenced by it.
|
|
/// \param IDecl - Used for checking for methods which may have been
|
|
/// inherited.
|
|
void CheckProtocolMethodDefs(SourceLocation ImpLoc,
|
|
ObjCProtocolDecl *PDecl,
|
|
bool& IncompleteImpl,
|
|
const llvm::DenseSet<Selector> &InsMap,
|
|
const llvm::DenseSet<Selector> &ClsMap,
|
|
ObjCInterfaceDecl *IDecl);
|
|
|
|
/// CheckImplementationIvars - This routine checks if the instance variables
|
|
/// listed in the implelementation match those listed in the interface.
|
|
void CheckImplementationIvars(ObjCImplementationDecl *ImpDecl,
|
|
ObjCIvarDecl **Fields, unsigned nIvars,
|
|
SourceLocation Loc);
|
|
|
|
/// ImplMethodsVsClassMethods - This is main routine to warn if any method
|
|
/// remains unimplemented in the class or category @implementation.
|
|
void ImplMethodsVsClassMethods(ObjCImplDecl* IMPDecl,
|
|
ObjCContainerDecl* IDecl,
|
|
bool IncompleteImpl = false);
|
|
|
|
/// MatchTwoMethodDeclarations - Checks if two methods' type match and returns
|
|
/// true, or false, accordingly.
|
|
bool MatchTwoMethodDeclarations(const ObjCMethodDecl *Method,
|
|
const ObjCMethodDecl *PrevMethod,
|
|
bool matchBasedOnSizeAndAlignment = false);
|
|
|
|
/// MatchAllMethodDeclarations - Check methods declaraed in interface or
|
|
/// or protocol against those declared in their implementations.
|
|
void MatchAllMethodDeclarations(const llvm::DenseSet<Selector> &InsMap,
|
|
const llvm::DenseSet<Selector> &ClsMap,
|
|
llvm::DenseSet<Selector> &InsMapSeen,
|
|
llvm::DenseSet<Selector> &ClsMapSeen,
|
|
ObjCImplDecl* IMPDecl,
|
|
ObjCContainerDecl* IDecl,
|
|
bool &IncompleteImpl,
|
|
bool ImmediateClass);
|
|
|
|
/// AddInstanceMethodToGlobalPool - All instance methods in a translation
|
|
/// unit are added to a global pool. This allows us to efficiently associate
|
|
/// a selector with a method declaraation for purposes of typechecking
|
|
/// messages sent to "id" (where the class of the object is unknown).
|
|
void AddInstanceMethodToGlobalPool(ObjCMethodDecl *Method);
|
|
|
|
/// LookupInstanceMethodInGlobalPool - Returns the method and warns if
|
|
/// there are multiple signatures.
|
|
ObjCMethodDecl *LookupInstanceMethodInGlobalPool(Selector Sel, SourceRange R,
|
|
bool warn=true);
|
|
|
|
/// LookupFactoryMethodInGlobalPool - Returns the method and warns if
|
|
/// there are multiple signatures.
|
|
ObjCMethodDecl *LookupFactoryMethodInGlobalPool(Selector Sel, SourceRange R);
|
|
|
|
/// AddFactoryMethodToGlobalPool - Same as above, but for factory methods.
|
|
void AddFactoryMethodToGlobalPool(ObjCMethodDecl *Method);
|
|
//===--------------------------------------------------------------------===//
|
|
// Statement Parsing Callbacks: SemaStmt.cpp.
|
|
public:
|
|
virtual OwningStmtResult ActOnExprStmt(FullExprArg Expr);
|
|
|
|
virtual OwningStmtResult ActOnNullStmt(SourceLocation SemiLoc);
|
|
virtual OwningStmtResult ActOnCompoundStmt(SourceLocation L, SourceLocation R,
|
|
MultiStmtArg Elts,
|
|
bool isStmtExpr);
|
|
virtual OwningStmtResult ActOnDeclStmt(DeclGroupPtrTy Decl,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc);
|
|
virtual OwningStmtResult ActOnCaseStmt(SourceLocation CaseLoc, ExprArg LHSVal,
|
|
SourceLocation DotDotDotLoc, ExprArg RHSVal,
|
|
SourceLocation ColonLoc);
|
|
virtual void ActOnCaseStmtBody(StmtTy *CaseStmt, StmtArg SubStmt);
|
|
|
|
virtual OwningStmtResult ActOnDefaultStmt(SourceLocation DefaultLoc,
|
|
SourceLocation ColonLoc,
|
|
StmtArg SubStmt, Scope *CurScope);
|
|
virtual OwningStmtResult ActOnLabelStmt(SourceLocation IdentLoc,
|
|
IdentifierInfo *II,
|
|
SourceLocation ColonLoc,
|
|
StmtArg SubStmt);
|
|
virtual OwningStmtResult ActOnIfStmt(SourceLocation IfLoc,
|
|
FullExprArg CondVal, StmtArg ThenVal,
|
|
SourceLocation ElseLoc, StmtArg ElseVal);
|
|
virtual OwningStmtResult ActOnStartOfSwitchStmt(ExprArg Cond);
|
|
virtual OwningStmtResult ActOnFinishSwitchStmt(SourceLocation SwitchLoc,
|
|
StmtArg Switch, StmtArg Body);
|
|
virtual OwningStmtResult ActOnWhileStmt(SourceLocation WhileLoc,
|
|
FullExprArg Cond, StmtArg Body);
|
|
virtual OwningStmtResult ActOnDoStmt(SourceLocation DoLoc, StmtArg Body,
|
|
SourceLocation WhileLoc,
|
|
SourceLocation CondLParen, ExprArg Cond,
|
|
SourceLocation CondRParen);
|
|
|
|
virtual OwningStmtResult ActOnForStmt(SourceLocation ForLoc,
|
|
SourceLocation LParenLoc,
|
|
StmtArg First, ExprArg Second,
|
|
ExprArg Third, SourceLocation RParenLoc,
|
|
StmtArg Body);
|
|
virtual OwningStmtResult ActOnObjCForCollectionStmt(SourceLocation ForColLoc,
|
|
SourceLocation LParenLoc,
|
|
StmtArg First, ExprArg Second,
|
|
SourceLocation RParenLoc, StmtArg Body);
|
|
|
|
virtual OwningStmtResult ActOnGotoStmt(SourceLocation GotoLoc,
|
|
SourceLocation LabelLoc,
|
|
IdentifierInfo *LabelII);
|
|
virtual OwningStmtResult ActOnIndirectGotoStmt(SourceLocation GotoLoc,
|
|
SourceLocation StarLoc,
|
|
ExprArg DestExp);
|
|
virtual OwningStmtResult ActOnContinueStmt(SourceLocation ContinueLoc,
|
|
Scope *CurScope);
|
|
virtual OwningStmtResult ActOnBreakStmt(SourceLocation GotoLoc,
|
|
Scope *CurScope);
|
|
|
|
virtual OwningStmtResult ActOnReturnStmt(SourceLocation ReturnLoc,
|
|
ExprArg RetValExp);
|
|
OwningStmtResult ActOnBlockReturnStmt(SourceLocation ReturnLoc,
|
|
Expr *RetValExp);
|
|
|
|
virtual OwningStmtResult ActOnAsmStmt(SourceLocation AsmLoc,
|
|
bool IsSimple,
|
|
bool IsVolatile,
|
|
unsigned NumOutputs,
|
|
unsigned NumInputs,
|
|
std::string *Names,
|
|
MultiExprArg Constraints,
|
|
MultiExprArg Exprs,
|
|
ExprArg AsmString,
|
|
MultiExprArg Clobbers,
|
|
SourceLocation RParenLoc);
|
|
|
|
virtual OwningStmtResult ActOnObjCAtCatchStmt(SourceLocation AtLoc,
|
|
SourceLocation RParen,
|
|
DeclPtrTy Parm, StmtArg Body,
|
|
StmtArg CatchList);
|
|
|
|
virtual OwningStmtResult ActOnObjCAtFinallyStmt(SourceLocation AtLoc,
|
|
StmtArg Body);
|
|
|
|
virtual OwningStmtResult ActOnObjCAtTryStmt(SourceLocation AtLoc,
|
|
StmtArg Try,
|
|
StmtArg Catch, StmtArg Finally);
|
|
|
|
virtual OwningStmtResult ActOnObjCAtThrowStmt(SourceLocation AtLoc,
|
|
ExprArg Throw,
|
|
Scope *CurScope);
|
|
virtual OwningStmtResult ActOnObjCAtSynchronizedStmt(SourceLocation AtLoc,
|
|
ExprArg SynchExpr,
|
|
StmtArg SynchBody);
|
|
|
|
VarDecl *BuildExceptionDeclaration(Scope *S, QualType ExDeclType,
|
|
DeclaratorInfo *DInfo,
|
|
IdentifierInfo *Name,
|
|
SourceLocation Loc,
|
|
SourceRange Range);
|
|
virtual DeclPtrTy ActOnExceptionDeclarator(Scope *S, Declarator &D);
|
|
|
|
virtual OwningStmtResult ActOnCXXCatchBlock(SourceLocation CatchLoc,
|
|
DeclPtrTy ExDecl,
|
|
StmtArg HandlerBlock);
|
|
virtual OwningStmtResult ActOnCXXTryBlock(SourceLocation TryLoc,
|
|
StmtArg TryBlock,
|
|
MultiStmtArg Handlers);
|
|
void DiagnoseReturnInConstructorExceptionHandler(CXXTryStmt *TryBlock);
|
|
|
|
/// DiagnoseUnusedExprResult - If the statement passed in is an expression
|
|
/// whose result is unused, warn.
|
|
void DiagnoseUnusedExprResult(const Stmt *S);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Expression Parsing Callbacks: SemaExpr.cpp.
|
|
|
|
bool DiagnoseUseOfDecl(NamedDecl *D, SourceLocation Loc);
|
|
bool DiagnosePropertyAccessorMismatch(ObjCPropertyDecl *PD,
|
|
ObjCMethodDecl *Getter,
|
|
SourceLocation Loc);
|
|
void DiagnoseSentinelCalls(NamedDecl *D, SourceLocation Loc,
|
|
Expr **Args, unsigned NumArgs);
|
|
|
|
virtual ExpressionEvaluationContext
|
|
PushExpressionEvaluationContext(ExpressionEvaluationContext NewContext);
|
|
|
|
virtual void
|
|
PopExpressionEvaluationContext(ExpressionEvaluationContext OldContext,
|
|
ExpressionEvaluationContext NewContext);
|
|
|
|
void MarkDeclarationReferenced(SourceLocation Loc, Decl *D);
|
|
|
|
// Primary Expressions.
|
|
virtual SourceRange getExprRange(ExprTy *E) const;
|
|
|
|
virtual OwningExprResult ActOnIdentifierExpr(Scope *S, SourceLocation Loc,
|
|
IdentifierInfo &II,
|
|
bool HasTrailingLParen,
|
|
const CXXScopeSpec *SS = 0,
|
|
bool isAddressOfOperand = false);
|
|
virtual OwningExprResult ActOnCXXOperatorFunctionIdExpr(Scope *S,
|
|
SourceLocation OperatorLoc,
|
|
OverloadedOperatorKind Op,
|
|
bool HasTrailingLParen,
|
|
const CXXScopeSpec &SS,
|
|
bool isAddressOfOperand);
|
|
virtual OwningExprResult ActOnCXXConversionFunctionExpr(Scope *S,
|
|
SourceLocation OperatorLoc,
|
|
TypeTy *Ty,
|
|
bool HasTrailingLParen,
|
|
const CXXScopeSpec &SS,
|
|
bool isAddressOfOperand);
|
|
OwningExprResult BuildDeclRefExpr(NamedDecl *D, QualType Ty,
|
|
SourceLocation Loc, bool TypeDependent,
|
|
bool ValueDependent,
|
|
const CXXScopeSpec *SS = 0);
|
|
VarDecl *BuildAnonymousStructUnionMemberPath(FieldDecl *Field,
|
|
llvm::SmallVectorImpl<FieldDecl *> &Path);
|
|
OwningExprResult
|
|
BuildAnonymousStructUnionMemberReference(SourceLocation Loc,
|
|
FieldDecl *Field,
|
|
Expr *BaseObjectExpr = 0,
|
|
SourceLocation OpLoc = SourceLocation());
|
|
OwningExprResult ActOnDeclarationNameExpr(Scope *S, SourceLocation Loc,
|
|
DeclarationName Name,
|
|
bool HasTrailingLParen,
|
|
const CXXScopeSpec *SS,
|
|
bool isAddressOfOperand = false);
|
|
OwningExprResult BuildDeclarationNameExpr(SourceLocation Loc, NamedDecl *D,
|
|
bool HasTrailingLParen,
|
|
const CXXScopeSpec *SS,
|
|
bool isAddressOfOperand);
|
|
|
|
virtual OwningExprResult ActOnPredefinedExpr(SourceLocation Loc,
|
|
tok::TokenKind Kind);
|
|
virtual OwningExprResult ActOnNumericConstant(const Token &);
|
|
virtual OwningExprResult ActOnCharacterConstant(const Token &);
|
|
virtual OwningExprResult ActOnParenExpr(SourceLocation L, SourceLocation R,
|
|
ExprArg Val);
|
|
virtual OwningExprResult ActOnParenListExpr(SourceLocation L,
|
|
SourceLocation R,
|
|
MultiExprArg Val);
|
|
|
|
/// ActOnStringLiteral - The specified tokens were lexed as pasted string
|
|
/// fragments (e.g. "foo" "bar" L"baz").
|
|
virtual OwningExprResult ActOnStringLiteral(const Token *Toks,
|
|
unsigned NumToks);
|
|
|
|
// Binary/Unary Operators. 'Tok' is the token for the operator.
|
|
OwningExprResult CreateBuiltinUnaryOp(SourceLocation OpLoc,
|
|
unsigned OpcIn,
|
|
ExprArg InputArg);
|
|
virtual OwningExprResult ActOnUnaryOp(Scope *S, SourceLocation OpLoc,
|
|
tok::TokenKind Op, ExprArg Input);
|
|
|
|
OwningExprResult CreateSizeOfAlignOfExpr(QualType T, SourceLocation OpLoc,
|
|
bool isSizeOf, SourceRange R);
|
|
OwningExprResult CreateSizeOfAlignOfExpr(Expr *E, SourceLocation OpLoc,
|
|
bool isSizeOf, SourceRange R);
|
|
virtual OwningExprResult
|
|
ActOnSizeOfAlignOfExpr(SourceLocation OpLoc, bool isSizeof, bool isType,
|
|
void *TyOrEx, const SourceRange &ArgRange);
|
|
|
|
bool CheckAlignOfExpr(Expr *E, SourceLocation OpLoc, const SourceRange &R);
|
|
bool CheckSizeOfAlignOfOperand(QualType type, SourceLocation OpLoc,
|
|
const SourceRange &R, bool isSizeof);
|
|
|
|
virtual OwningExprResult ActOnPostfixUnaryOp(Scope *S, SourceLocation OpLoc,
|
|
tok::TokenKind Kind,
|
|
ExprArg Input);
|
|
|
|
virtual OwningExprResult ActOnArraySubscriptExpr(Scope *S, ExprArg Base,
|
|
SourceLocation LLoc,
|
|
ExprArg Idx,
|
|
SourceLocation RLoc);
|
|
|
|
OwningExprResult BuildMemberReferenceExpr(Scope *S, ExprArg Base,
|
|
SourceLocation OpLoc,
|
|
tok::TokenKind OpKind,
|
|
SourceLocation MemberLoc,
|
|
DeclarationName MemberName,
|
|
DeclPtrTy ImplDecl,
|
|
const CXXScopeSpec *SS = 0,
|
|
NamedDecl *FirstQualifierInScope = 0) {
|
|
// FIXME: Temporary helper while we migrate existing calls to
|
|
// BuildMemberReferenceExpr to support explicitly-specified template
|
|
// arguments.
|
|
return BuildMemberReferenceExpr(S, move(Base), OpLoc, OpKind, MemberLoc,
|
|
MemberName, false, SourceLocation(), 0, 0,
|
|
SourceLocation(), ImplDecl, SS,
|
|
FirstQualifierInScope);
|
|
}
|
|
|
|
OwningExprResult BuildMemberReferenceExpr(Scope *S, ExprArg Base,
|
|
SourceLocation OpLoc,
|
|
tok::TokenKind OpKind,
|
|
SourceLocation MemberLoc,
|
|
DeclarationName MemberName,
|
|
bool HasExplicitTemplateArgs,
|
|
SourceLocation LAngleLoc,
|
|
const TemplateArgument *ExplicitTemplateArgs,
|
|
unsigned NumExplicitTemplateArgs,
|
|
SourceLocation RAngleLoc,
|
|
DeclPtrTy ImplDecl,
|
|
const CXXScopeSpec *SS,
|
|
NamedDecl *FirstQualifierInScope = 0);
|
|
|
|
virtual OwningExprResult ActOnMemberReferenceExpr(Scope *S, ExprArg Base,
|
|
SourceLocation OpLoc,
|
|
tok::TokenKind OpKind,
|
|
SourceLocation MemberLoc,
|
|
IdentifierInfo &Member,
|
|
DeclPtrTy ImplDecl,
|
|
const CXXScopeSpec *SS = 0);
|
|
virtual void ActOnDefaultCtorInitializers(DeclPtrTy CDtorDecl);
|
|
bool ConvertArgumentsForCall(CallExpr *Call, Expr *Fn,
|
|
FunctionDecl *FDecl,
|
|
const FunctionProtoType *Proto,
|
|
Expr **Args, unsigned NumArgs,
|
|
SourceLocation RParenLoc);
|
|
void BuildBaseOrMemberInitializers(ASTContext &C,
|
|
CXXConstructorDecl *Constructor,
|
|
CXXBaseOrMemberInitializer **Initializers,
|
|
unsigned NumInitializers
|
|
);
|
|
|
|
void DeconstructCallFunction(Expr *FnExpr,
|
|
NamedDecl *&Function,
|
|
DeclarationName &Name,
|
|
NestedNameSpecifier *&Qualifier,
|
|
SourceRange &QualifierRange,
|
|
bool &ArgumentDependentLookup,
|
|
bool &HasExplicitTemplateArguments,
|
|
const TemplateArgument *&ExplicitTemplateArgs,
|
|
unsigned &NumExplicitTemplateArgs);
|
|
|
|
/// ActOnCallExpr - Handle a call to Fn with the specified array of arguments.
|
|
/// This provides the location of the left/right parens and a list of comma
|
|
/// locations.
|
|
virtual OwningExprResult ActOnCallExpr(Scope *S, ExprArg Fn,
|
|
SourceLocation LParenLoc,
|
|
MultiExprArg Args,
|
|
SourceLocation *CommaLocs,
|
|
SourceLocation RParenLoc);
|
|
|
|
virtual OwningExprResult ActOnCastExpr(Scope *S, SourceLocation LParenLoc,
|
|
TypeTy *Ty, SourceLocation RParenLoc,
|
|
ExprArg Op);
|
|
|
|
OwningExprResult MaybeConvertParenListExprToParenExpr(Scope *S, ExprArg ME);
|
|
OwningExprResult ActOnCastOfParenListExpr(Scope *S, SourceLocation LParenLoc,
|
|
SourceLocation RParenLoc, ExprArg E,
|
|
QualType Ty);
|
|
|
|
virtual OwningExprResult ActOnCompoundLiteral(SourceLocation LParenLoc,
|
|
TypeTy *Ty,
|
|
SourceLocation RParenLoc,
|
|
ExprArg Op);
|
|
|
|
virtual OwningExprResult ActOnInitList(SourceLocation LParenLoc,
|
|
MultiExprArg InitList,
|
|
SourceLocation RParenLoc);
|
|
|
|
virtual OwningExprResult ActOnDesignatedInitializer(Designation &Desig,
|
|
SourceLocation Loc,
|
|
bool GNUSyntax,
|
|
OwningExprResult Init);
|
|
|
|
virtual OwningExprResult ActOnBinOp(Scope *S, SourceLocation TokLoc,
|
|
tok::TokenKind Kind,
|
|
ExprArg LHS, ExprArg RHS);
|
|
OwningExprResult CreateBuiltinBinOp(SourceLocation TokLoc,
|
|
unsigned Opc, Expr *lhs, Expr *rhs);
|
|
|
|
/// ActOnConditionalOp - Parse a ?: operation. Note that 'LHS' may be null
|
|
/// in the case of a the GNU conditional expr extension.
|
|
virtual OwningExprResult ActOnConditionalOp(SourceLocation QuestionLoc,
|
|
SourceLocation ColonLoc,
|
|
ExprArg Cond, ExprArg LHS,
|
|
ExprArg RHS);
|
|
|
|
/// ActOnAddrLabel - Parse the GNU address of label extension: "&&foo".
|
|
virtual OwningExprResult ActOnAddrLabel(SourceLocation OpLoc,
|
|
SourceLocation LabLoc,
|
|
IdentifierInfo *LabelII);
|
|
|
|
virtual OwningExprResult ActOnStmtExpr(SourceLocation LPLoc, StmtArg SubStmt,
|
|
SourceLocation RPLoc); // "({..})"
|
|
|
|
/// __builtin_offsetof(type, a.b[123][456].c)
|
|
virtual OwningExprResult ActOnBuiltinOffsetOf(Scope *S,
|
|
SourceLocation BuiltinLoc,
|
|
SourceLocation TypeLoc,
|
|
TypeTy *Arg1,
|
|
OffsetOfComponent *CompPtr,
|
|
unsigned NumComponents,
|
|
SourceLocation RParenLoc);
|
|
|
|
// __builtin_types_compatible_p(type1, type2)
|
|
virtual OwningExprResult ActOnTypesCompatibleExpr(SourceLocation BuiltinLoc,
|
|
TypeTy *arg1, TypeTy *arg2,
|
|
SourceLocation RPLoc);
|
|
|
|
// __builtin_choose_expr(constExpr, expr1, expr2)
|
|
virtual OwningExprResult ActOnChooseExpr(SourceLocation BuiltinLoc,
|
|
ExprArg cond, ExprArg expr1,
|
|
ExprArg expr2, SourceLocation RPLoc);
|
|
|
|
// __builtin_va_arg(expr, type)
|
|
virtual OwningExprResult ActOnVAArg(SourceLocation BuiltinLoc,
|
|
ExprArg expr, TypeTy *type,
|
|
SourceLocation RPLoc);
|
|
|
|
// __null
|
|
virtual OwningExprResult ActOnGNUNullExpr(SourceLocation TokenLoc);
|
|
|
|
//===------------------------- "Block" Extension ------------------------===//
|
|
|
|
/// ActOnBlockStart - This callback is invoked when a block literal is
|
|
/// started.
|
|
virtual void ActOnBlockStart(SourceLocation CaretLoc, Scope *CurScope);
|
|
|
|
/// ActOnBlockArguments - This callback allows processing of block arguments.
|
|
/// If there are no arguments, this is still invoked.
|
|
virtual void ActOnBlockArguments(Declarator &ParamInfo, Scope *CurScope);
|
|
|
|
/// ActOnBlockError - If there is an error parsing a block, this callback
|
|
/// is invoked to pop the information about the block from the action impl.
|
|
virtual void ActOnBlockError(SourceLocation CaretLoc, Scope *CurScope);
|
|
|
|
/// ActOnBlockStmtExpr - This is called when the body of a block statement
|
|
/// literal was successfully completed. ^(int x){...}
|
|
virtual OwningExprResult ActOnBlockStmtExpr(SourceLocation CaretLoc,
|
|
StmtArg Body, Scope *CurScope);
|
|
|
|
//===---------------------------- C++ Features --------------------------===//
|
|
|
|
// Act on C++ namespaces
|
|
virtual DeclPtrTy ActOnStartNamespaceDef(Scope *S, SourceLocation IdentLoc,
|
|
IdentifierInfo *Ident,
|
|
SourceLocation LBrace);
|
|
virtual void ActOnFinishNamespaceDef(DeclPtrTy Dcl, SourceLocation RBrace);
|
|
|
|
virtual DeclPtrTy ActOnUsingDirective(Scope *CurScope,
|
|
SourceLocation UsingLoc,
|
|
SourceLocation NamespcLoc,
|
|
const CXXScopeSpec &SS,
|
|
SourceLocation IdentLoc,
|
|
IdentifierInfo *NamespcName,
|
|
AttributeList *AttrList);
|
|
|
|
void PushUsingDirective(Scope *S, UsingDirectiveDecl *UDir);
|
|
|
|
virtual DeclPtrTy ActOnNamespaceAliasDef(Scope *CurScope,
|
|
SourceLocation NamespaceLoc,
|
|
SourceLocation AliasLoc,
|
|
IdentifierInfo *Alias,
|
|
const CXXScopeSpec &SS,
|
|
SourceLocation IdentLoc,
|
|
IdentifierInfo *Ident);
|
|
|
|
NamedDecl *BuildUsingDeclaration(SourceLocation UsingLoc,
|
|
const CXXScopeSpec &SS,
|
|
SourceLocation IdentLoc,
|
|
DeclarationName Name,
|
|
AttributeList *AttrList,
|
|
bool IsTypeName);
|
|
|
|
virtual DeclPtrTy ActOnUsingDeclaration(Scope *CurScope,
|
|
AccessSpecifier AS,
|
|
SourceLocation UsingLoc,
|
|
const CXXScopeSpec &SS,
|
|
SourceLocation IdentLoc,
|
|
IdentifierInfo *TargetName,
|
|
OverloadedOperatorKind Op,
|
|
AttributeList *AttrList,
|
|
bool IsTypeName);
|
|
|
|
/// AddCXXDirectInitializerToDecl - This action is called immediately after
|
|
/// ActOnDeclarator, when a C++ direct initializer is present.
|
|
/// e.g: "int x(1);"
|
|
virtual void AddCXXDirectInitializerToDecl(DeclPtrTy Dcl,
|
|
SourceLocation LParenLoc,
|
|
MultiExprArg Exprs,
|
|
SourceLocation *CommaLocs,
|
|
SourceLocation RParenLoc);
|
|
|
|
/// InitializeVarWithConstructor - Creates an CXXConstructExpr
|
|
/// and sets it as the initializer for the the passed in VarDecl.
|
|
bool InitializeVarWithConstructor(VarDecl *VD,
|
|
CXXConstructorDecl *Constructor,
|
|
QualType DeclInitType,
|
|
MultiExprArg Exprs);
|
|
|
|
/// BuildCXXConstructExpr - Creates a complete call to a constructor,
|
|
/// including handling of its default argument expressions.
|
|
OwningExprResult BuildCXXConstructExpr(SourceLocation ConstructLoc,
|
|
QualType DeclInitType,
|
|
CXXConstructorDecl *Constructor,
|
|
MultiExprArg Exprs);
|
|
|
|
// FIXME: Can re remove this and have the above BuildCXXConstructExpr check if
|
|
// the constructor can be elidable?
|
|
OwningExprResult BuildCXXConstructExpr(SourceLocation ConstructLoc,
|
|
QualType DeclInitType,
|
|
CXXConstructorDecl *Constructor,
|
|
bool Elidable,
|
|
MultiExprArg Exprs);
|
|
|
|
OwningExprResult BuildCXXTemporaryObjectExpr(CXXConstructorDecl *Cons,
|
|
QualType writtenTy,
|
|
SourceLocation tyBeginLoc,
|
|
MultiExprArg Args,
|
|
SourceLocation rParenLoc);
|
|
|
|
OwningExprResult BuildCXXCastArgument(SourceLocation CastLoc,
|
|
QualType Ty,
|
|
CastExpr::CastKind Kind,
|
|
CXXMethodDecl *Method,
|
|
ExprArg Arg);
|
|
|
|
/// BuildCXXDefaultArgExpr - Creates a CXXDefaultArgExpr, instantiating
|
|
/// the default expr if needed.
|
|
OwningExprResult BuildCXXDefaultArgExpr(SourceLocation CallLoc,
|
|
FunctionDecl *FD,
|
|
ParmVarDecl *Param);
|
|
|
|
/// FinalizeVarWithDestructor - Prepare for calling destructor on the
|
|
/// constructed variable.
|
|
void FinalizeVarWithDestructor(VarDecl *VD, QualType DeclInitType);
|
|
|
|
/// DefineImplicitDefaultConstructor - Checks for feasibility of
|
|
/// defining this constructor as the default constructor.
|
|
void DefineImplicitDefaultConstructor(SourceLocation CurrentLocation,
|
|
CXXConstructorDecl *Constructor);
|
|
|
|
/// DefineImplicitDestructor - Checks for feasibility of
|
|
/// defining this destructor as the default destructor.
|
|
void DefineImplicitDestructor(SourceLocation CurrentLocation,
|
|
CXXDestructorDecl *Destructor);
|
|
|
|
/// DefineImplicitCopyConstructor - Checks for feasibility of
|
|
/// defining this constructor as the copy constructor.
|
|
void DefineImplicitCopyConstructor(SourceLocation CurrentLocation,
|
|
CXXConstructorDecl *Constructor,
|
|
unsigned TypeQuals);
|
|
|
|
/// DefineImplicitOverloadedAssign - Checks for feasibility of
|
|
/// defining implicit this overloaded assignment operator.
|
|
void DefineImplicitOverloadedAssign(SourceLocation CurrentLocation,
|
|
CXXMethodDecl *MethodDecl);
|
|
|
|
/// getAssignOperatorMethod - Returns the default copy assignmment operator
|
|
/// for the class.
|
|
CXXMethodDecl *getAssignOperatorMethod(ParmVarDecl *Decl,
|
|
CXXRecordDecl *ClassDecl);
|
|
|
|
/// MaybeBindToTemporary - If the passed in expression has a record type with
|
|
/// a non-trivial destructor, this will return CXXBindTemporaryExpr. Otherwise
|
|
/// it simply returns the passed in expression.
|
|
OwningExprResult MaybeBindToTemporary(Expr *E);
|
|
|
|
/// InitializationKind - Represents which kind of C++ initialization
|
|
/// [dcl.init] a routine is to perform.
|
|
enum InitializationKind {
|
|
IK_Direct, ///< Direct initialization
|
|
IK_Copy, ///< Copy initialization
|
|
IK_Default ///< Default initialization
|
|
};
|
|
|
|
CXXConstructorDecl *
|
|
PerformInitializationByConstructor(QualType ClassType,
|
|
MultiExprArg ArgsPtr,
|
|
SourceLocation Loc, SourceRange Range,
|
|
DeclarationName InitEntity,
|
|
InitializationKind Kind,
|
|
ASTOwningVector<&ActionBase::DeleteExpr> &ConvertedArgs);
|
|
|
|
bool CompleteConstructorCall(CXXConstructorDecl *Constructor,
|
|
MultiExprArg ArgsPtr,
|
|
SourceLocation Loc,
|
|
ASTOwningVector<&ActionBase::DeleteExpr> &ConvertedArgs);
|
|
|
|
/// ActOnCXXNamedCast - Parse {dynamic,static,reinterpret,const}_cast's.
|
|
virtual OwningExprResult ActOnCXXNamedCast(SourceLocation OpLoc,
|
|
tok::TokenKind Kind,
|
|
SourceLocation LAngleBracketLoc,
|
|
TypeTy *Ty,
|
|
SourceLocation RAngleBracketLoc,
|
|
SourceLocation LParenLoc,
|
|
ExprArg E,
|
|
SourceLocation RParenLoc);
|
|
|
|
/// ActOnCXXTypeid - Parse typeid( something ).
|
|
virtual OwningExprResult ActOnCXXTypeid(SourceLocation OpLoc,
|
|
SourceLocation LParenLoc, bool isType,
|
|
void *TyOrExpr,
|
|
SourceLocation RParenLoc);
|
|
|
|
//// ActOnCXXThis - Parse 'this' pointer.
|
|
virtual OwningExprResult ActOnCXXThis(SourceLocation ThisLoc);
|
|
|
|
/// ActOnCXXBoolLiteral - Parse {true,false} literals.
|
|
virtual OwningExprResult ActOnCXXBoolLiteral(SourceLocation OpLoc,
|
|
tok::TokenKind Kind);
|
|
|
|
/// ActOnCXXNullPtrLiteral - Parse 'nullptr'.
|
|
virtual OwningExprResult ActOnCXXNullPtrLiteral(SourceLocation Loc);
|
|
|
|
//// ActOnCXXThrow - Parse throw expressions.
|
|
virtual OwningExprResult ActOnCXXThrow(SourceLocation OpLoc,
|
|
ExprArg expr);
|
|
bool CheckCXXThrowOperand(SourceLocation ThrowLoc, Expr *&E);
|
|
|
|
/// ActOnCXXTypeConstructExpr - Parse construction of a specified type.
|
|
/// Can be interpreted either as function-style casting ("int(x)")
|
|
/// or class type construction ("ClassType(x,y,z)")
|
|
/// or creation of a value-initialized type ("int()").
|
|
virtual OwningExprResult ActOnCXXTypeConstructExpr(SourceRange TypeRange,
|
|
TypeTy *TypeRep,
|
|
SourceLocation LParenLoc,
|
|
MultiExprArg Exprs,
|
|
SourceLocation *CommaLocs,
|
|
SourceLocation RParenLoc);
|
|
|
|
/// ActOnCXXNew - Parsed a C++ 'new' expression.
|
|
virtual OwningExprResult ActOnCXXNew(SourceLocation StartLoc, bool UseGlobal,
|
|
SourceLocation PlacementLParen,
|
|
MultiExprArg PlacementArgs,
|
|
SourceLocation PlacementRParen,
|
|
bool ParenTypeId, Declarator &D,
|
|
SourceLocation ConstructorLParen,
|
|
MultiExprArg ConstructorArgs,
|
|
SourceLocation ConstructorRParen);
|
|
OwningExprResult BuildCXXNew(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);
|
|
|
|
bool CheckAllocatedType(QualType AllocType, SourceLocation Loc,
|
|
SourceRange R);
|
|
bool FindAllocationFunctions(SourceLocation StartLoc, SourceRange Range,
|
|
bool UseGlobal, QualType AllocType, bool IsArray,
|
|
Expr **PlaceArgs, unsigned NumPlaceArgs,
|
|
FunctionDecl *&OperatorNew,
|
|
FunctionDecl *&OperatorDelete);
|
|
bool FindAllocationOverload(SourceLocation StartLoc, SourceRange Range,
|
|
DeclarationName Name, Expr** Args,
|
|
unsigned NumArgs, DeclContext *Ctx,
|
|
bool AllowMissing, FunctionDecl *&Operator);
|
|
void DeclareGlobalNewDelete();
|
|
void DeclareGlobalAllocationFunction(DeclarationName Name, QualType Return,
|
|
QualType Argument);
|
|
|
|
/// ActOnCXXDelete - Parsed a C++ 'delete' expression
|
|
virtual OwningExprResult ActOnCXXDelete(SourceLocation StartLoc,
|
|
bool UseGlobal, bool ArrayForm,
|
|
ExprArg Operand);
|
|
|
|
/// ActOnCXXConditionDeclarationExpr - Parsed a condition declaration of a
|
|
/// C++ if/switch/while/for statement.
|
|
/// e.g: "if (int x = f()) {...}"
|
|
virtual OwningExprResult ActOnCXXConditionDeclarationExpr(Scope *S,
|
|
SourceLocation StartLoc,
|
|
Declarator &D,
|
|
SourceLocation EqualLoc,
|
|
ExprArg AssignExprVal);
|
|
|
|
/// ActOnUnaryTypeTrait - Parsed one of the unary type trait support
|
|
/// pseudo-functions.
|
|
virtual OwningExprResult ActOnUnaryTypeTrait(UnaryTypeTrait OTT,
|
|
SourceLocation KWLoc,
|
|
SourceLocation LParen,
|
|
TypeTy *Ty,
|
|
SourceLocation RParen);
|
|
|
|
virtual OwningExprResult ActOnStartCXXMemberReference(Scope *S,
|
|
ExprArg Base,
|
|
SourceLocation OpLoc,
|
|
tok::TokenKind OpKind,
|
|
TypeTy *&ObjectType);
|
|
|
|
virtual OwningExprResult
|
|
ActOnDestructorReferenceExpr(Scope *S, ExprArg Base,
|
|
SourceLocation OpLoc,
|
|
tok::TokenKind OpKind,
|
|
SourceLocation ClassNameLoc,
|
|
IdentifierInfo *ClassName,
|
|
const CXXScopeSpec &SS,
|
|
bool HasTrailingLParen);
|
|
|
|
virtual OwningExprResult
|
|
ActOnOverloadedOperatorReferenceExpr(Scope *S, ExprArg Base,
|
|
SourceLocation OpLoc,
|
|
tok::TokenKind OpKind,
|
|
SourceLocation ClassNameLoc,
|
|
OverloadedOperatorKind OverOpKind,
|
|
const CXXScopeSpec *SS = 0);
|
|
virtual OwningExprResult
|
|
ActOnConversionOperatorReferenceExpr(Scope *S, ExprArg Base,
|
|
SourceLocation OpLoc,
|
|
tok::TokenKind OpKind,
|
|
SourceLocation ClassNameLoc,
|
|
TypeTy *Ty,
|
|
const CXXScopeSpec *SS = 0);
|
|
|
|
virtual OwningExprResult
|
|
ActOnMemberTemplateIdReferenceExpr(Scope *S, ExprArg Base,
|
|
SourceLocation OpLoc,
|
|
tok::TokenKind OpKind,
|
|
const CXXScopeSpec &SS,
|
|
// FIXME: "template" keyword?
|
|
TemplateTy Template,
|
|
SourceLocation TemplateNameLoc,
|
|
SourceLocation LAngleLoc,
|
|
ASTTemplateArgsPtr TemplateArgs,
|
|
SourceLocation *TemplateArgLocs,
|
|
SourceLocation RAngleLoc);
|
|
|
|
/// MaybeCreateCXXExprWithTemporaries - If the list of temporaries is
|
|
/// non-empty, will create a new CXXExprWithTemporaries expression.
|
|
/// Otherwise, just returs the passed in expression.
|
|
Expr *MaybeCreateCXXExprWithTemporaries(Expr *SubExpr,
|
|
bool ShouldDestroyTemporaries);
|
|
|
|
virtual OwningExprResult ActOnFinishFullExpr(ExprArg Expr);
|
|
|
|
bool RequireCompleteDeclContext(const CXXScopeSpec &SS);
|
|
|
|
DeclContext *computeDeclContext(QualType T);
|
|
DeclContext *computeDeclContext(const CXXScopeSpec &SS,
|
|
bool EnteringContext = false);
|
|
bool isDependentScopeSpecifier(const CXXScopeSpec &SS);
|
|
CXXRecordDecl *getCurrentInstantiationOf(NestedNameSpecifier *NNS);
|
|
bool isUnknownSpecialization(const CXXScopeSpec &SS);
|
|
|
|
/// ActOnCXXGlobalScopeSpecifier - Return the object that represents the
|
|
/// global scope ('::').
|
|
virtual CXXScopeTy *ActOnCXXGlobalScopeSpecifier(Scope *S,
|
|
SourceLocation CCLoc);
|
|
|
|
bool isAcceptableNestedNameSpecifier(NamedDecl *SD);
|
|
NamedDecl *FindFirstQualifierInScope(Scope *S, NestedNameSpecifier *NNS);
|
|
|
|
|
|
CXXScopeTy *BuildCXXNestedNameSpecifier(Scope *S,
|
|
const CXXScopeSpec &SS,
|
|
SourceLocation IdLoc,
|
|
SourceLocation CCLoc,
|
|
IdentifierInfo &II,
|
|
QualType ObjectType,
|
|
NamedDecl *ScopeLookupResult,
|
|
bool EnteringContext);
|
|
|
|
virtual CXXScopeTy *ActOnCXXNestedNameSpecifier(Scope *S,
|
|
const CXXScopeSpec &SS,
|
|
SourceLocation IdLoc,
|
|
SourceLocation CCLoc,
|
|
IdentifierInfo &II,
|
|
TypeTy *ObjectType,
|
|
bool EnteringContext);
|
|
|
|
/// ActOnCXXNestedNameSpecifier - Called during parsing of a
|
|
/// nested-name-specifier that involves a template-id, e.g.,
|
|
/// "foo::bar<int, float>::", and now we need to build a scope
|
|
/// specifier. \p SS is empty or the previously parsed nested-name
|
|
/// part ("foo::"), \p Type is the already-parsed class template
|
|
/// specialization (or other template-id that names a type), \p
|
|
/// TypeRange is the source range where the type is located, and \p
|
|
/// CCLoc is the location of the trailing '::'.
|
|
virtual CXXScopeTy *ActOnCXXNestedNameSpecifier(Scope *S,
|
|
const CXXScopeSpec &SS,
|
|
TypeTy *Type,
|
|
SourceRange TypeRange,
|
|
SourceLocation CCLoc);
|
|
|
|
/// ActOnCXXEnterDeclaratorScope - Called when a C++ scope specifier (global
|
|
/// scope or nested-name-specifier) is parsed, part of a declarator-id.
|
|
/// After this method is called, according to [C++ 3.4.3p3], names should be
|
|
/// looked up in the declarator-id's scope, until the declarator is parsed and
|
|
/// ActOnCXXExitDeclaratorScope is called.
|
|
/// The 'SS' should be a non-empty valid CXXScopeSpec.
|
|
virtual void ActOnCXXEnterDeclaratorScope(Scope *S, const CXXScopeSpec &SS);
|
|
|
|
/// ActOnCXXExitDeclaratorScope - Called when a declarator that previously
|
|
/// invoked ActOnCXXEnterDeclaratorScope(), is finished. 'SS' is the same
|
|
/// CXXScopeSpec that was passed to ActOnCXXEnterDeclaratorScope as well.
|
|
/// Used to indicate that names should revert to being looked up in the
|
|
/// defining scope.
|
|
virtual void ActOnCXXExitDeclaratorScope(Scope *S, const CXXScopeSpec &SS);
|
|
|
|
/// ActOnCXXEnterDeclInitializer - Invoked when we are about to parse an
|
|
/// initializer for the declaration 'Dcl'.
|
|
/// After this method is called, according to [C++ 3.4.1p13], if 'Dcl' is a
|
|
/// static data member of class X, names should be looked up in the scope of
|
|
/// class X.
|
|
virtual void ActOnCXXEnterDeclInitializer(Scope *S, DeclPtrTy Dcl);
|
|
|
|
/// ActOnCXXExitDeclInitializer - Invoked after we are finished parsing an
|
|
/// initializer for the declaration 'Dcl'.
|
|
virtual void ActOnCXXExitDeclInitializer(Scope *S, DeclPtrTy Dcl);
|
|
|
|
// ParseObjCStringLiteral - Parse Objective-C string literals.
|
|
virtual ExprResult ParseObjCStringLiteral(SourceLocation *AtLocs,
|
|
ExprTy **Strings,
|
|
unsigned NumStrings);
|
|
|
|
Expr *BuildObjCEncodeExpression(SourceLocation AtLoc,
|
|
QualType EncodedType,
|
|
SourceLocation RParenLoc);
|
|
virtual ExprResult ParseObjCEncodeExpression(SourceLocation AtLoc,
|
|
SourceLocation EncodeLoc,
|
|
SourceLocation LParenLoc,
|
|
TypeTy *Ty,
|
|
SourceLocation RParenLoc);
|
|
|
|
// ParseObjCSelectorExpression - Build selector expression for @selector
|
|
virtual ExprResult ParseObjCSelectorExpression(Selector Sel,
|
|
SourceLocation AtLoc,
|
|
SourceLocation SelLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation RParenLoc);
|
|
|
|
// ParseObjCProtocolExpression - Build protocol expression for @protocol
|
|
virtual ExprResult ParseObjCProtocolExpression(IdentifierInfo * ProtocolName,
|
|
SourceLocation AtLoc,
|
|
SourceLocation ProtoLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation RParenLoc);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// C++ Declarations
|
|
//
|
|
virtual DeclPtrTy ActOnStartLinkageSpecification(Scope *S,
|
|
SourceLocation ExternLoc,
|
|
SourceLocation LangLoc,
|
|
const char *Lang,
|
|
unsigned StrSize,
|
|
SourceLocation LBraceLoc);
|
|
virtual DeclPtrTy ActOnFinishLinkageSpecification(Scope *S,
|
|
DeclPtrTy LinkageSpec,
|
|
SourceLocation RBraceLoc);
|
|
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// C++ Classes
|
|
//
|
|
virtual bool isCurrentClassName(const IdentifierInfo &II, Scope *S,
|
|
const CXXScopeSpec *SS);
|
|
|
|
virtual DeclPtrTy ActOnCXXMemberDeclarator(Scope *S, AccessSpecifier AS,
|
|
Declarator &D,
|
|
MultiTemplateParamsArg TemplateParameterLists,
|
|
ExprTy *BitfieldWidth,
|
|
ExprTy *Init,
|
|
bool Deleted = false);
|
|
|
|
virtual MemInitResult ActOnMemInitializer(DeclPtrTy ConstructorD,
|
|
Scope *S,
|
|
const CXXScopeSpec &SS,
|
|
IdentifierInfo *MemberOrBase,
|
|
TypeTy *TemplateTypeTy,
|
|
SourceLocation IdLoc,
|
|
SourceLocation LParenLoc,
|
|
ExprTy **Args, unsigned NumArgs,
|
|
SourceLocation *CommaLocs,
|
|
SourceLocation RParenLoc);
|
|
|
|
MemInitResult BuildMemberInitializer(FieldDecl *Member, Expr **Args,
|
|
unsigned NumArgs, SourceLocation IdLoc,
|
|
SourceLocation RParenLoc);
|
|
|
|
MemInitResult BuildBaseInitializer(QualType BaseType, Expr **Args,
|
|
unsigned NumArgs, SourceLocation IdLoc,
|
|
SourceLocation RParenLoc,
|
|
CXXRecordDecl *ClassDecl);
|
|
|
|
void setBaseOrMemberInitializers(CXXConstructorDecl *Constructor,
|
|
CXXBaseOrMemberInitializer **Initializers,
|
|
unsigned NumInitializers,
|
|
llvm::SmallVectorImpl<CXXBaseSpecifier *>& Bases,
|
|
llvm::SmallVectorImpl<FieldDecl *>&Members);
|
|
|
|
/// computeBaseOrMembersToDestroy - Compute information in current
|
|
/// destructor decl's AST of bases and non-static data members which will be
|
|
/// implicitly destroyed. We are storing the destruction in the order that
|
|
/// they should occur (which is the reverse of construction order).
|
|
void computeBaseOrMembersToDestroy(CXXDestructorDecl *Destructor);
|
|
|
|
void AddImplicitlyDeclaredMembersToClass(CXXRecordDecl *ClassDecl);
|
|
|
|
virtual void ActOnMemInitializers(DeclPtrTy ConstructorDecl,
|
|
SourceLocation ColonLoc,
|
|
MemInitTy **MemInits, unsigned NumMemInits);
|
|
|
|
virtual void ActOnFinishCXXMemberSpecification(Scope* S, SourceLocation RLoc,
|
|
DeclPtrTy TagDecl,
|
|
SourceLocation LBrac,
|
|
SourceLocation RBrac);
|
|
|
|
virtual void ActOnReenterTemplateScope(Scope *S, DeclPtrTy Template);
|
|
virtual void ActOnStartDelayedCXXMethodDeclaration(Scope *S,
|
|
DeclPtrTy Method);
|
|
virtual void ActOnDelayedCXXMethodParameter(Scope *S, DeclPtrTy Param);
|
|
virtual void ActOnFinishDelayedCXXMethodDeclaration(Scope *S,
|
|
DeclPtrTy Method);
|
|
|
|
virtual DeclPtrTy ActOnStaticAssertDeclaration(SourceLocation AssertLoc,
|
|
ExprArg AssertExpr,
|
|
ExprArg AssertMessageExpr);
|
|
|
|
DeclPtrTy ActOnFriendTypeDecl(Scope *S, const DeclSpec &DS,
|
|
MultiTemplateParamsArg TemplateParams);
|
|
DeclPtrTy ActOnFriendFunctionDecl(Scope *S, Declarator &D, bool IsDefinition,
|
|
MultiTemplateParamsArg TemplateParams);
|
|
|
|
QualType CheckConstructorDeclarator(Declarator &D, QualType R,
|
|
FunctionDecl::StorageClass& SC);
|
|
void CheckConstructor(CXXConstructorDecl *Constructor);
|
|
QualType CheckDestructorDeclarator(Declarator &D,
|
|
FunctionDecl::StorageClass& SC);
|
|
void CheckConversionDeclarator(Declarator &D, QualType &R,
|
|
FunctionDecl::StorageClass& SC);
|
|
DeclPtrTy ActOnConversionDeclarator(CXXConversionDecl *Conversion);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// C++ Derived Classes
|
|
//
|
|
|
|
/// ActOnBaseSpecifier - Parsed a base specifier
|
|
CXXBaseSpecifier *CheckBaseSpecifier(CXXRecordDecl *Class,
|
|
SourceRange SpecifierRange,
|
|
bool Virtual, AccessSpecifier Access,
|
|
QualType BaseType,
|
|
SourceLocation BaseLoc);
|
|
virtual BaseResult ActOnBaseSpecifier(DeclPtrTy classdecl,
|
|
SourceRange SpecifierRange,
|
|
bool Virtual, AccessSpecifier Access,
|
|
TypeTy *basetype, SourceLocation
|
|
BaseLoc);
|
|
|
|
bool AttachBaseSpecifiers(CXXRecordDecl *Class, CXXBaseSpecifier **Bases,
|
|
unsigned NumBases);
|
|
virtual void ActOnBaseSpecifiers(DeclPtrTy ClassDecl, BaseTy **Bases,
|
|
unsigned NumBases);
|
|
|
|
bool IsDerivedFrom(QualType Derived, QualType Base);
|
|
bool IsDerivedFrom(QualType Derived, QualType Base, BasePaths &Paths);
|
|
bool LookupInBases(CXXRecordDecl *Class, const MemberLookupCriteria& Criteria,
|
|
BasePaths &Paths);
|
|
bool CheckDerivedToBaseConversion(QualType Derived, QualType Base,
|
|
SourceLocation Loc, SourceRange Range);
|
|
bool CheckDerivedToBaseConversion(QualType Derived, QualType Base,
|
|
unsigned InaccessibleBaseID,
|
|
unsigned AmbigiousBaseConvID,
|
|
SourceLocation Loc, SourceRange Range,
|
|
DeclarationName Name);
|
|
|
|
std::string getAmbiguousPathsDisplayString(BasePaths &Paths);
|
|
|
|
/// CheckOverridingFunctionReturnType - Checks whether the return types are
|
|
/// covariant, according to C++ [class.virtual]p5.
|
|
bool CheckOverridingFunctionReturnType(const CXXMethodDecl *New,
|
|
const CXXMethodDecl *Old);
|
|
|
|
/// CheckOverridingFunctionExceptionSpec - Checks whether the exception
|
|
/// spec is a subset of base spec.
|
|
bool CheckOverridingFunctionExceptionSpec(const CXXMethodDecl *New,
|
|
const CXXMethodDecl *Old);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// C++ Access Control
|
|
//
|
|
|
|
bool SetMemberAccessSpecifier(NamedDecl *MemberDecl,
|
|
NamedDecl *PrevMemberDecl,
|
|
AccessSpecifier LexicalAS);
|
|
|
|
const CXXBaseSpecifier *FindInaccessibleBase(QualType Derived, QualType Base,
|
|
BasePaths &Paths,
|
|
bool NoPrivileges = false);
|
|
|
|
bool CheckBaseClassAccess(QualType Derived, QualType Base,
|
|
unsigned InaccessibleBaseID,
|
|
BasePaths& Paths, SourceLocation AccessLoc,
|
|
DeclarationName Name);
|
|
|
|
|
|
enum AbstractDiagSelID {
|
|
AbstractNone = -1,
|
|
AbstractReturnType,
|
|
AbstractParamType,
|
|
AbstractVariableType,
|
|
AbstractFieldType
|
|
};
|
|
|
|
bool RequireNonAbstractType(SourceLocation Loc, QualType T,
|
|
const PartialDiagnostic &PD,
|
|
const CXXRecordDecl *CurrentRD = 0);
|
|
|
|
bool RequireNonAbstractType(SourceLocation Loc, QualType T, unsigned DiagID,
|
|
AbstractDiagSelID SelID = AbstractNone,
|
|
const CXXRecordDecl *CurrentRD = 0);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// C++ Overloaded Operators [C++ 13.5]
|
|
//
|
|
|
|
bool CheckOverloadedOperatorDeclaration(FunctionDecl *FnDecl);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// C++ Templates [C++ 14]
|
|
//
|
|
virtual TemplateNameKind isTemplateName(Scope *S,
|
|
const IdentifierInfo &II,
|
|
SourceLocation IdLoc,
|
|
const CXXScopeSpec *SS,
|
|
TypeTy *ObjectType,
|
|
bool EnteringContext,
|
|
TemplateTy &Template);
|
|
bool DiagnoseTemplateParameterShadow(SourceLocation Loc, Decl *PrevDecl);
|
|
TemplateDecl *AdjustDeclIfTemplate(DeclPtrTy &Decl);
|
|
|
|
virtual DeclPtrTy ActOnTypeParameter(Scope *S, bool Typename, bool Ellipsis,
|
|
SourceLocation EllipsisLoc,
|
|
SourceLocation KeyLoc,
|
|
IdentifierInfo *ParamName,
|
|
SourceLocation ParamNameLoc,
|
|
unsigned Depth, unsigned Position);
|
|
virtual void ActOnTypeParameterDefault(DeclPtrTy TypeParam,
|
|
SourceLocation EqualLoc,
|
|
SourceLocation DefaultLoc,
|
|
TypeTy *Default);
|
|
|
|
QualType CheckNonTypeTemplateParameterType(QualType T, SourceLocation Loc);
|
|
virtual DeclPtrTy ActOnNonTypeTemplateParameter(Scope *S, Declarator &D,
|
|
unsigned Depth,
|
|
unsigned Position);
|
|
virtual void ActOnNonTypeTemplateParameterDefault(DeclPtrTy TemplateParam,
|
|
SourceLocation EqualLoc,
|
|
ExprArg Default);
|
|
virtual DeclPtrTy ActOnTemplateTemplateParameter(Scope *S,
|
|
SourceLocation TmpLoc,
|
|
TemplateParamsTy *Params,
|
|
IdentifierInfo *ParamName,
|
|
SourceLocation ParamNameLoc,
|
|
unsigned Depth,
|
|
unsigned Position);
|
|
virtual void ActOnTemplateTemplateParameterDefault(DeclPtrTy TemplateParam,
|
|
SourceLocation EqualLoc,
|
|
ExprArg Default);
|
|
|
|
virtual TemplateParamsTy *
|
|
ActOnTemplateParameterList(unsigned Depth,
|
|
SourceLocation ExportLoc,
|
|
SourceLocation TemplateLoc,
|
|
SourceLocation LAngleLoc,
|
|
DeclPtrTy *Params, unsigned NumParams,
|
|
SourceLocation RAngleLoc);
|
|
bool CheckTemplateParameterList(TemplateParameterList *NewParams,
|
|
TemplateParameterList *OldParams);
|
|
TemplateParameterList *
|
|
MatchTemplateParametersToScopeSpecifier(SourceLocation DeclStartLoc,
|
|
const CXXScopeSpec &SS,
|
|
TemplateParameterList **ParamLists,
|
|
unsigned NumParamLists);
|
|
|
|
DeclResult CheckClassTemplate(Scope *S, unsigned TagSpec, TagUseKind TUK,
|
|
SourceLocation KWLoc, const CXXScopeSpec &SS,
|
|
IdentifierInfo *Name, SourceLocation NameLoc,
|
|
AttributeList *Attr,
|
|
TemplateParameterList *TemplateParams,
|
|
AccessSpecifier AS);
|
|
|
|
QualType CheckTemplateIdType(TemplateName Template,
|
|
SourceLocation TemplateLoc,
|
|
SourceLocation LAngleLoc,
|
|
const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs,
|
|
SourceLocation RAngleLoc);
|
|
|
|
virtual TypeResult
|
|
ActOnTemplateIdType(TemplateTy Template, SourceLocation TemplateLoc,
|
|
SourceLocation LAngleLoc,
|
|
ASTTemplateArgsPtr TemplateArgs,
|
|
SourceLocation *TemplateArgLocs,
|
|
SourceLocation RAngleLoc);
|
|
|
|
virtual TypeResult ActOnTagTemplateIdType(TypeResult Type,
|
|
TagUseKind TUK,
|
|
DeclSpec::TST TagSpec,
|
|
SourceLocation TagLoc);
|
|
|
|
OwningExprResult BuildTemplateIdExpr(TemplateName Template,
|
|
SourceLocation TemplateNameLoc,
|
|
SourceLocation LAngleLoc,
|
|
const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs,
|
|
SourceLocation RAngleLoc);
|
|
|
|
virtual OwningExprResult ActOnTemplateIdExpr(TemplateTy Template,
|
|
SourceLocation TemplateNameLoc,
|
|
SourceLocation LAngleLoc,
|
|
ASTTemplateArgsPtr TemplateArgs,
|
|
SourceLocation *TemplateArgLocs,
|
|
SourceLocation RAngleLoc);
|
|
|
|
virtual TemplateTy ActOnDependentTemplateName(SourceLocation TemplateKWLoc,
|
|
const IdentifierInfo &Name,
|
|
SourceLocation NameLoc,
|
|
const CXXScopeSpec &SS,
|
|
TypeTy *ObjectType);
|
|
|
|
bool CheckClassTemplateSpecializationScope(ClassTemplateDecl *ClassTemplate,
|
|
ClassTemplateSpecializationDecl *PrevDecl,
|
|
SourceLocation TemplateNameLoc,
|
|
SourceRange ScopeSpecifierRange,
|
|
bool PartialSpecialization,
|
|
bool ExplicitInstantiation);
|
|
|
|
bool CheckClassTemplatePartialSpecializationArgs(
|
|
TemplateParameterList *TemplateParams,
|
|
const TemplateArgumentListBuilder &TemplateArgs,
|
|
bool &MirrorsPrimaryTemplate);
|
|
|
|
virtual DeclResult
|
|
ActOnClassTemplateSpecialization(Scope *S, unsigned TagSpec, TagUseKind TUK,
|
|
SourceLocation KWLoc,
|
|
const CXXScopeSpec &SS,
|
|
TemplateTy Template,
|
|
SourceLocation TemplateNameLoc,
|
|
SourceLocation LAngleLoc,
|
|
ASTTemplateArgsPtr TemplateArgs,
|
|
SourceLocation *TemplateArgLocs,
|
|
SourceLocation RAngleLoc,
|
|
AttributeList *Attr,
|
|
MultiTemplateParamsArg TemplateParameterLists);
|
|
|
|
virtual DeclPtrTy ActOnTemplateDeclarator(Scope *S,
|
|
MultiTemplateParamsArg TemplateParameterLists,
|
|
Declarator &D);
|
|
|
|
virtual DeclPtrTy ActOnStartOfFunctionTemplateDef(Scope *FnBodyScope,
|
|
MultiTemplateParamsArg TemplateParameterLists,
|
|
Declarator &D);
|
|
|
|
virtual DeclResult
|
|
ActOnExplicitInstantiation(Scope *S,
|
|
SourceLocation ExternLoc,
|
|
SourceLocation TemplateLoc,
|
|
unsigned TagSpec,
|
|
SourceLocation KWLoc,
|
|
const CXXScopeSpec &SS,
|
|
TemplateTy Template,
|
|
SourceLocation TemplateNameLoc,
|
|
SourceLocation LAngleLoc,
|
|
ASTTemplateArgsPtr TemplateArgs,
|
|
SourceLocation *TemplateArgLocs,
|
|
SourceLocation RAngleLoc,
|
|
AttributeList *Attr);
|
|
|
|
virtual DeclResult
|
|
ActOnExplicitInstantiation(Scope *S,
|
|
SourceLocation ExternLoc,
|
|
SourceLocation TemplateLoc,
|
|
unsigned TagSpec,
|
|
SourceLocation KWLoc,
|
|
const CXXScopeSpec &SS,
|
|
IdentifierInfo *Name,
|
|
SourceLocation NameLoc,
|
|
AttributeList *Attr);
|
|
|
|
bool CheckTemplateArgumentList(TemplateDecl *Template,
|
|
SourceLocation TemplateLoc,
|
|
SourceLocation LAngleLoc,
|
|
const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs,
|
|
SourceLocation RAngleLoc,
|
|
bool PartialTemplateArgs,
|
|
TemplateArgumentListBuilder &Converted);
|
|
|
|
bool CheckTemplateTypeArgument(TemplateTypeParmDecl *Param,
|
|
const TemplateArgument &Arg,
|
|
TemplateArgumentListBuilder &Converted);
|
|
|
|
bool CheckTemplateArgument(TemplateTypeParmDecl *Param, QualType Arg,
|
|
SourceLocation ArgLoc);
|
|
bool CheckTemplateArgumentAddressOfObjectOrFunction(Expr *Arg,
|
|
NamedDecl *&Entity);
|
|
bool CheckTemplateArgumentPointerToMember(Expr *Arg, NamedDecl *&Member);
|
|
bool CheckTemplateArgument(NonTypeTemplateParmDecl *Param,
|
|
QualType InstantiatedParamType, Expr *&Arg,
|
|
TemplateArgument &Converted);
|
|
bool CheckTemplateArgument(TemplateTemplateParmDecl *Param, DeclRefExpr *Arg);
|
|
bool TemplateParameterListsAreEqual(TemplateParameterList *New,
|
|
TemplateParameterList *Old,
|
|
bool Complain,
|
|
bool IsTemplateTemplateParm = false,
|
|
SourceLocation TemplateArgLoc
|
|
= SourceLocation());
|
|
|
|
bool CheckTemplateDeclScope(Scope *S, TemplateParameterList *TemplateParams);
|
|
|
|
/// \brief Called when the parser has parsed a C++ typename
|
|
/// specifier, e.g., "typename T::type".
|
|
///
|
|
/// \param TypenameLoc the location of the 'typename' keyword
|
|
/// \param SS the nested-name-specifier following the typename (e.g., 'T::').
|
|
/// \param II the identifier we're retrieving (e.g., 'type' in the example).
|
|
/// \param IdLoc the location of the identifier.
|
|
virtual TypeResult
|
|
ActOnTypenameType(SourceLocation TypenameLoc, const CXXScopeSpec &SS,
|
|
const IdentifierInfo &II, SourceLocation IdLoc);
|
|
|
|
/// \brief Called when the parser has parsed a C++ typename
|
|
/// specifier that ends in a template-id, e.g.,
|
|
/// "typename MetaFun::template apply<T1, T2>".
|
|
///
|
|
/// \param TypenameLoc the location of the 'typename' keyword
|
|
/// \param SS the nested-name-specifier following the typename (e.g., 'T::').
|
|
/// \param TemplateLoc the location of the 'template' keyword, if any.
|
|
/// \param Ty the type that the typename specifier refers to.
|
|
virtual TypeResult
|
|
ActOnTypenameType(SourceLocation TypenameLoc, const CXXScopeSpec &SS,
|
|
SourceLocation TemplateLoc, TypeTy *Ty);
|
|
|
|
QualType CheckTypenameType(NestedNameSpecifier *NNS,
|
|
const IdentifierInfo &II,
|
|
SourceRange Range);
|
|
|
|
QualType RebuildTypeInCurrentInstantiation(QualType T, SourceLocation Loc,
|
|
DeclarationName Name);
|
|
|
|
std::string
|
|
getTemplateArgumentBindingsText(const TemplateParameterList *Params,
|
|
const TemplateArgumentList &Args);
|
|
|
|
/// \brief Describes the result of template argument deduction.
|
|
///
|
|
/// The TemplateDeductionResult enumeration describes the result of
|
|
/// template argument deduction, as returned from
|
|
/// DeduceTemplateArguments(). The separate TemplateDeductionInfo
|
|
/// structure provides additional information about the results of
|
|
/// template argument deduction, e.g., the deduced template argument
|
|
/// list (if successful) or the specific template parameters or
|
|
/// deduced arguments that were involved in the failure.
|
|
enum TemplateDeductionResult {
|
|
/// \brief Template argument deduction was successful.
|
|
TDK_Success = 0,
|
|
/// \brief Template argument deduction exceeded the maximum template
|
|
/// instantiation depth (which has already been diagnosed).
|
|
TDK_InstantiationDepth,
|
|
/// \brief Template argument deduction did not deduce a value
|
|
/// for every template parameter.
|
|
TDK_Incomplete,
|
|
/// \brief Template argument deduction produced inconsistent
|
|
/// deduced values for the given template parameter.
|
|
TDK_Inconsistent,
|
|
/// \brief Template argument deduction failed due to inconsistent
|
|
/// cv-qualifiers on a template parameter type that would
|
|
/// otherwise be deduced, e.g., we tried to deduce T in "const T"
|
|
/// but were given a non-const "X".
|
|
TDK_InconsistentQuals,
|
|
/// \brief Substitution of the deduced template argument values
|
|
/// resulted in an error.
|
|
TDK_SubstitutionFailure,
|
|
/// \brief Substitution of the deduced template argument values
|
|
/// into a non-deduced context produced a type or value that
|
|
/// produces a type that does not match the original template
|
|
/// arguments provided.
|
|
TDK_NonDeducedMismatch,
|
|
/// \brief When performing template argument deduction for a function
|
|
/// template, there were too many call arguments.
|
|
TDK_TooManyArguments,
|
|
/// \brief When performing template argument deduction for a function
|
|
/// template, there were too few call arguments.
|
|
TDK_TooFewArguments,
|
|
/// \brief The explicitly-specified template arguments were not valid
|
|
/// template arguments for the given template.
|
|
TDK_InvalidExplicitArguments
|
|
};
|
|
|
|
/// \brief Provides information about an attempted template argument
|
|
/// deduction, whose success or failure was described by a
|
|
/// TemplateDeductionResult value.
|
|
class TemplateDeductionInfo {
|
|
/// \brief The context in which the template arguments are stored.
|
|
ASTContext &Context;
|
|
|
|
/// \brief The deduced template argument list.
|
|
///
|
|
TemplateArgumentList *Deduced;
|
|
|
|
// do not implement these
|
|
TemplateDeductionInfo(const TemplateDeductionInfo&);
|
|
TemplateDeductionInfo &operator=(const TemplateDeductionInfo&);
|
|
|
|
public:
|
|
TemplateDeductionInfo(ASTContext &Context) : Context(Context), Deduced(0) { }
|
|
|
|
~TemplateDeductionInfo() {
|
|
// FIXME: if (Deduced) Deduced->Destroy(Context);
|
|
}
|
|
|
|
/// \brief Take ownership of the deduced template argument list.
|
|
TemplateArgumentList *take() {
|
|
TemplateArgumentList *Result = Deduced;
|
|
Deduced = 0;
|
|
return Result;
|
|
}
|
|
|
|
/// \brief Provide a new template argument list that contains the
|
|
/// results of template argument deduction.
|
|
void reset(TemplateArgumentList *NewDeduced) {
|
|
// FIXME: if (Deduced) Deduced->Destroy(Context);
|
|
Deduced = NewDeduced;
|
|
}
|
|
|
|
/// \brief The template parameter to which a template argument
|
|
/// deduction failure refers.
|
|
///
|
|
/// Depending on the result of template argument deduction, this
|
|
/// template parameter may have different meanings:
|
|
///
|
|
/// TDK_Incomplete: this is the first template parameter whose
|
|
/// corresponding template argument was not deduced.
|
|
///
|
|
/// TDK_Inconsistent: this is the template parameter for which
|
|
/// two different template argument values were deduced.
|
|
TemplateParameter Param;
|
|
|
|
/// \brief The first template argument to which the template
|
|
/// argument deduction failure refers.
|
|
///
|
|
/// Depending on the result of the template argument deduction,
|
|
/// this template argument may have different meanings:
|
|
///
|
|
/// TDK_Inconsistent: this argument is the first value deduced
|
|
/// for the corresponding template parameter.
|
|
///
|
|
/// TDK_SubstitutionFailure: this argument is the template
|
|
/// argument we were instantiating when we encountered an error.
|
|
///
|
|
/// TDK_NonDeducedMismatch: this is the template argument
|
|
/// provided in the source code.
|
|
TemplateArgument FirstArg;
|
|
|
|
/// \brief The second template argument to which the template
|
|
/// argument deduction failure refers.
|
|
///
|
|
/// FIXME: Finish documenting this.
|
|
TemplateArgument SecondArg;
|
|
};
|
|
|
|
TemplateDeductionResult
|
|
DeduceTemplateArguments(ClassTemplatePartialSpecializationDecl *Partial,
|
|
const TemplateArgumentList &TemplateArgs,
|
|
TemplateDeductionInfo &Info);
|
|
|
|
TemplateDeductionResult
|
|
SubstituteExplicitTemplateArguments(FunctionTemplateDecl *FunctionTemplate,
|
|
const TemplateArgument *ExplicitTemplateArgs,
|
|
unsigned NumExplicitTemplateArgs,
|
|
llvm::SmallVectorImpl<TemplateArgument> &Deduced,
|
|
llvm::SmallVectorImpl<QualType> &ParamTypes,
|
|
QualType *FunctionType,
|
|
TemplateDeductionInfo &Info);
|
|
|
|
TemplateDeductionResult
|
|
FinishTemplateArgumentDeduction(FunctionTemplateDecl *FunctionTemplate,
|
|
llvm::SmallVectorImpl<TemplateArgument> &Deduced,
|
|
FunctionDecl *&Specialization,
|
|
TemplateDeductionInfo &Info);
|
|
|
|
TemplateDeductionResult
|
|
DeduceTemplateArguments(FunctionTemplateDecl *FunctionTemplate,
|
|
bool HasExplicitTemplateArgs,
|
|
const TemplateArgument *ExplicitTemplateArgs,
|
|
unsigned NumExplicitTemplateArgs,
|
|
Expr **Args, unsigned NumArgs,
|
|
FunctionDecl *&Specialization,
|
|
TemplateDeductionInfo &Info);
|
|
|
|
TemplateDeductionResult
|
|
DeduceTemplateArguments(FunctionTemplateDecl *FunctionTemplate,
|
|
bool HasExplicitTemplateArgs,
|
|
const TemplateArgument *ExplicitTemplateArgs,
|
|
unsigned NumExplicitTemplateArgs,
|
|
QualType ArgFunctionType,
|
|
FunctionDecl *&Specialization,
|
|
TemplateDeductionInfo &Info);
|
|
|
|
TemplateDeductionResult
|
|
DeduceTemplateArguments(FunctionTemplateDecl *FunctionTemplate,
|
|
QualType ToType,
|
|
CXXConversionDecl *&Specialization,
|
|
TemplateDeductionInfo &Info);
|
|
|
|
FunctionTemplateDecl *getMoreSpecializedTemplate(FunctionTemplateDecl *FT1,
|
|
FunctionTemplateDecl *FT2,
|
|
TemplatePartialOrderingContext TPOC);
|
|
ClassTemplatePartialSpecializationDecl *
|
|
getMoreSpecializedPartialSpecialization(
|
|
ClassTemplatePartialSpecializationDecl *PS1,
|
|
ClassTemplatePartialSpecializationDecl *PS2);
|
|
|
|
void MarkUsedTemplateParameters(const TemplateArgumentList &TemplateArgs,
|
|
bool OnlyDeduced,
|
|
llvm::SmallVectorImpl<bool> &Used);
|
|
void MarkDeducedTemplateParameters(FunctionTemplateDecl *FunctionTemplate,
|
|
llvm::SmallVectorImpl<bool> &Deduced);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// C++ Template Instantiation
|
|
//
|
|
|
|
MultiLevelTemplateArgumentList getTemplateInstantiationArgs(NamedDecl *D);
|
|
|
|
/// \brief A template instantiation that is currently in progress.
|
|
struct ActiveTemplateInstantiation {
|
|
/// \brief The kind of template instantiation we are performing
|
|
enum InstantiationKind {
|
|
/// We are instantiating a template declaration. The entity is
|
|
/// the declaration we're instantiating (e.g., a CXXRecordDecl).
|
|
TemplateInstantiation,
|
|
|
|
/// We are instantiating a default argument for a template
|
|
/// parameter. The Entity is the template, and
|
|
/// TemplateArgs/NumTemplateArguments provides the template
|
|
/// arguments as specified.
|
|
/// FIXME: Use a TemplateArgumentList
|
|
DefaultTemplateArgumentInstantiation,
|
|
|
|
/// We are instantiating a default argument for a function.
|
|
/// The Entity is the ParmVarDecl, and TemplateArgs/NumTemplateArgs
|
|
/// provides the template arguments as specified.
|
|
DefaultFunctionArgumentInstantiation,
|
|
|
|
/// We are substituting explicit template arguments provided for
|
|
/// a function template. The entity is a FunctionTemplateDecl.
|
|
ExplicitTemplateArgumentSubstitution,
|
|
|
|
/// We are substituting template argument determined as part of
|
|
/// template argument deduction for either a class template
|
|
/// partial specialization or a function template. The
|
|
/// Entity is either a ClassTemplatePartialSpecializationDecl or
|
|
/// a FunctionTemplateDecl.
|
|
DeducedTemplateArgumentSubstitution
|
|
} Kind;
|
|
|
|
/// \brief The point of instantiation within the source code.
|
|
SourceLocation PointOfInstantiation;
|
|
|
|
/// \brief The entity that is being instantiated.
|
|
uintptr_t Entity;
|
|
|
|
// \brief If this the instantiation of a default template
|
|
// argument, the list of template arguments.
|
|
const TemplateArgument *TemplateArgs;
|
|
|
|
/// \brief The number of template arguments in TemplateArgs.
|
|
unsigned NumTemplateArgs;
|
|
|
|
/// \brief The source range that covers the construct that cause
|
|
/// the instantiation, e.g., the template-id that causes a class
|
|
/// template instantiation.
|
|
SourceRange InstantiationRange;
|
|
|
|
ActiveTemplateInstantiation() : Kind(TemplateInstantiation), Entity(0),
|
|
TemplateArgs(0), NumTemplateArgs(0) {}
|
|
|
|
friend bool operator==(const ActiveTemplateInstantiation &X,
|
|
const ActiveTemplateInstantiation &Y) {
|
|
if (X.Kind != Y.Kind)
|
|
return false;
|
|
|
|
if (X.Entity != Y.Entity)
|
|
return false;
|
|
|
|
switch (X.Kind) {
|
|
case TemplateInstantiation:
|
|
return true;
|
|
|
|
case DefaultTemplateArgumentInstantiation:
|
|
case ExplicitTemplateArgumentSubstitution:
|
|
case DeducedTemplateArgumentSubstitution:
|
|
case DefaultFunctionArgumentInstantiation:
|
|
return X.TemplateArgs == Y.TemplateArgs;
|
|
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
friend bool operator!=(const ActiveTemplateInstantiation &X,
|
|
const ActiveTemplateInstantiation &Y) {
|
|
return !(X == Y);
|
|
}
|
|
};
|
|
|
|
/// \brief List of active template instantiations.
|
|
///
|
|
/// This vector is treated as a stack. As one template instantiation
|
|
/// requires another template instantiation, additional
|
|
/// instantiations are pushed onto the stack up to a
|
|
/// user-configurable limit LangOptions::InstantiationDepth.
|
|
llvm::SmallVector<ActiveTemplateInstantiation, 16>
|
|
ActiveTemplateInstantiations;
|
|
|
|
/// \brief The last template from which a template instantiation
|
|
/// error or warning was produced.
|
|
///
|
|
/// This value is used to suppress printing of redundant template
|
|
/// instantiation backtraces when there are multiple errors in the
|
|
/// same instantiation. FIXME: Does this belong in Sema? It's tough
|
|
/// to implement it anywhere else.
|
|
ActiveTemplateInstantiation LastTemplateInstantiationErrorContext;
|
|
|
|
/// \brief A stack object to be created when performing template
|
|
/// instantiation.
|
|
///
|
|
/// Construction of an object of type \c InstantiatingTemplate
|
|
/// pushes the current instantiation onto the stack of active
|
|
/// instantiations. If the size of this stack exceeds the maximum
|
|
/// number of recursive template instantiations, construction
|
|
/// produces an error and evaluates true.
|
|
///
|
|
/// Destruction of this object will pop the named instantiation off
|
|
/// the stack.
|
|
struct InstantiatingTemplate {
|
|
/// \brief Note that we are instantiating a class template,
|
|
/// function template, or a member thereof.
|
|
InstantiatingTemplate(Sema &SemaRef, SourceLocation PointOfInstantiation,
|
|
Decl *Entity,
|
|
SourceRange InstantiationRange = SourceRange());
|
|
|
|
/// \brief Note that we are instantiating a default argument in a
|
|
/// template-id.
|
|
InstantiatingTemplate(Sema &SemaRef, SourceLocation PointOfInstantiation,
|
|
TemplateDecl *Template,
|
|
const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs,
|
|
SourceRange InstantiationRange = SourceRange());
|
|
|
|
/// \brief Note that we are instantiating a default argument in a
|
|
/// template-id.
|
|
InstantiatingTemplate(Sema &SemaRef, SourceLocation PointOfInstantiation,
|
|
FunctionTemplateDecl *FunctionTemplate,
|
|
const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs,
|
|
ActiveTemplateInstantiation::InstantiationKind Kind,
|
|
SourceRange InstantiationRange = SourceRange());
|
|
|
|
/// \brief Note that we are instantiating as part of template
|
|
/// argument deduction for a class template partial
|
|
/// specialization.
|
|
InstantiatingTemplate(Sema &SemaRef, SourceLocation PointOfInstantiation,
|
|
ClassTemplatePartialSpecializationDecl *PartialSpec,
|
|
const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs,
|
|
SourceRange InstantiationRange = SourceRange());
|
|
|
|
InstantiatingTemplate(Sema &SemaRef, SourceLocation PointOfInstantiation,
|
|
ParmVarDecl *Param,
|
|
const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs,
|
|
SourceRange InstantiationRange = SourceRange());
|
|
|
|
/// \brief Note that we have finished instantiating this template.
|
|
void Clear();
|
|
|
|
~InstantiatingTemplate() { Clear(); }
|
|
|
|
/// \brief Determines whether we have exceeded the maximum
|
|
/// recursive template instantiations.
|
|
operator bool() const { return Invalid; }
|
|
|
|
private:
|
|
Sema &SemaRef;
|
|
bool Invalid;
|
|
|
|
bool CheckInstantiationDepth(SourceLocation PointOfInstantiation,
|
|
SourceRange InstantiationRange);
|
|
|
|
InstantiatingTemplate(const InstantiatingTemplate&); // not implemented
|
|
|
|
InstantiatingTemplate&
|
|
operator=(const InstantiatingTemplate&); // not implemented
|
|
};
|
|
|
|
void PrintInstantiationStack();
|
|
|
|
/// \brief Determines whether we are currently in a context where
|
|
/// template argument substitution failures are not considered
|
|
/// errors.
|
|
///
|
|
/// When this routine returns true, the emission of most diagnostics
|
|
/// will be suppressed and there will be no local error recovery.
|
|
bool isSFINAEContext() const;
|
|
|
|
/// \brief RAII class used to determine whether SFINAE has
|
|
/// trapped any errors that occur during template argument
|
|
/// deduction.
|
|
class SFINAETrap {
|
|
Sema &SemaRef;
|
|
unsigned PrevSFINAEErrors;
|
|
public:
|
|
explicit SFINAETrap(Sema &SemaRef)
|
|
: SemaRef(SemaRef), PrevSFINAEErrors(SemaRef.NumSFINAEErrors) { }
|
|
|
|
~SFINAETrap() { SemaRef.NumSFINAEErrors = PrevSFINAEErrors; }
|
|
|
|
/// \brief Determine whether any SFINAE errors have been trapped.
|
|
bool hasErrorOccurred() const {
|
|
return SemaRef.NumSFINAEErrors > PrevSFINAEErrors;
|
|
}
|
|
};
|
|
|
|
/// \brief A stack-allocated class that identifies which local
|
|
/// variable declaration instantiations are present in this scope.
|
|
///
|
|
/// A new instance of this class type will be created whenever we
|
|
/// instantiate a new function declaration, which will have its own
|
|
/// set of parameter declarations.
|
|
class LocalInstantiationScope {
|
|
/// \brief Reference to the semantic analysis that is performing
|
|
/// this template instantiation.
|
|
Sema &SemaRef;
|
|
|
|
/// \brief A mapping from local declarations that occur
|
|
/// within a template to their instantiations.
|
|
///
|
|
/// This mapping is used during instantiation to keep track of,
|
|
/// e.g., function parameter and variable declarations. For example,
|
|
/// given:
|
|
///
|
|
/// \code
|
|
/// template<typename T> T add(T x, T y) { return x + y; }
|
|
/// \endcode
|
|
///
|
|
/// when we instantiate add<int>, we will introduce a mapping from
|
|
/// the ParmVarDecl for 'x' that occurs in the template to the
|
|
/// instantiated ParmVarDecl for 'x'.
|
|
llvm::DenseMap<const Decl *, Decl *> LocalDecls;
|
|
|
|
/// \brief The outer scope, in which contains local variable
|
|
/// definitions from some other instantiation (that is not
|
|
/// relevant to this particular scope).
|
|
LocalInstantiationScope *Outer;
|
|
|
|
// This class is non-copyable
|
|
LocalInstantiationScope(const LocalInstantiationScope &);
|
|
LocalInstantiationScope &operator=(const LocalInstantiationScope &);
|
|
|
|
public:
|
|
LocalInstantiationScope(Sema &SemaRef)
|
|
: SemaRef(SemaRef), Outer(SemaRef.CurrentInstantiationScope) {
|
|
SemaRef.CurrentInstantiationScope = this;
|
|
}
|
|
|
|
~LocalInstantiationScope() {
|
|
SemaRef.CurrentInstantiationScope = Outer;
|
|
}
|
|
|
|
Decl *getInstantiationOf(const Decl *D) {
|
|
Decl *Result = LocalDecls[D];
|
|
assert(Result && "declaration was not instantiated in this scope!");
|
|
return Result;
|
|
}
|
|
|
|
VarDecl *getInstantiationOf(const VarDecl *Var) {
|
|
return cast<VarDecl>(getInstantiationOf(cast<Decl>(Var)));
|
|
}
|
|
|
|
ParmVarDecl *getInstantiationOf(const ParmVarDecl *Var) {
|
|
return cast<ParmVarDecl>(getInstantiationOf(cast<Decl>(Var)));
|
|
}
|
|
|
|
void InstantiatedLocal(const Decl *D, Decl *Inst) {
|
|
Decl *&Stored = LocalDecls[D];
|
|
assert(!Stored && "Already instantiated this local");
|
|
Stored = Inst;
|
|
}
|
|
};
|
|
|
|
/// \brief The current instantiation scope used to store local
|
|
/// variables.
|
|
LocalInstantiationScope *CurrentInstantiationScope;
|
|
|
|
/// \brief An entity for which implicit template instantiation is required.
|
|
///
|
|
/// The source location associated with the declaration is the first place in
|
|
/// the source code where the declaration was "used". It is not necessarily
|
|
/// the point of instantiation (which will be either before or after the
|
|
/// namespace-scope declaration that triggered this implicit instantiation),
|
|
/// However, it is the location that diagnostics should generally refer to,
|
|
/// because users will need to know what code triggered the instantiation.
|
|
typedef std::pair<ValueDecl *, SourceLocation> PendingImplicitInstantiation;
|
|
|
|
/// \brief The queue of implicit template instantiations that are required
|
|
/// but have not yet been performed.
|
|
std::deque<PendingImplicitInstantiation> PendingImplicitInstantiations;
|
|
|
|
void PerformPendingImplicitInstantiations();
|
|
|
|
QualType SubstType(QualType T,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs,
|
|
SourceLocation Loc, DeclarationName Entity);
|
|
|
|
OwningExprResult SubstExpr(Expr *E,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs);
|
|
|
|
OwningStmtResult SubstStmt(Stmt *S,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs);
|
|
|
|
Decl *SubstDecl(Decl *D, DeclContext *Owner,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs);
|
|
|
|
bool
|
|
SubstBaseSpecifiers(CXXRecordDecl *Instantiation,
|
|
CXXRecordDecl *Pattern,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs);
|
|
|
|
bool
|
|
InstantiateClass(SourceLocation PointOfInstantiation,
|
|
CXXRecordDecl *Instantiation, CXXRecordDecl *Pattern,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs,
|
|
TemplateSpecializationKind TSK,
|
|
bool Complain = true);
|
|
|
|
bool
|
|
InstantiateClassTemplateSpecialization(
|
|
ClassTemplateSpecializationDecl *ClassTemplateSpec,
|
|
TemplateSpecializationKind TSK,
|
|
bool Complain = true);
|
|
|
|
void InstantiateClassMembers(SourceLocation PointOfInstantiation,
|
|
CXXRecordDecl *Instantiation,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs,
|
|
TemplateSpecializationKind TSK);
|
|
|
|
void InstantiateClassTemplateSpecializationMembers(
|
|
SourceLocation PointOfInstantiation,
|
|
ClassTemplateSpecializationDecl *ClassTemplateSpec,
|
|
TemplateSpecializationKind TSK);
|
|
|
|
NestedNameSpecifier *
|
|
SubstNestedNameSpecifier(NestedNameSpecifier *NNS,
|
|
SourceRange Range,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs);
|
|
|
|
TemplateName
|
|
SubstTemplateName(TemplateName Name, SourceLocation Loc,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs);
|
|
TemplateArgument Subst(TemplateArgument Arg,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs);
|
|
|
|
void InstantiateFunctionDefinition(SourceLocation PointOfInstantiation,
|
|
FunctionDecl *Function,
|
|
bool Recursive = false);
|
|
void InstantiateStaticDataMemberDefinition(
|
|
SourceLocation PointOfInstantiation,
|
|
VarDecl *Var,
|
|
bool Recursive = false);
|
|
|
|
void InstantiateMemInitializers(CXXConstructorDecl *New,
|
|
const CXXConstructorDecl *Tmpl,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs);
|
|
|
|
NamedDecl *FindInstantiatedDecl(NamedDecl *D,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs);
|
|
DeclContext *FindInstantiatedContext(DeclContext *DC,
|
|
const MultiLevelTemplateArgumentList &TemplateArgs);
|
|
|
|
// Objective-C declarations.
|
|
virtual DeclPtrTy ActOnStartClassInterface(SourceLocation AtInterfaceLoc,
|
|
IdentifierInfo *ClassName,
|
|
SourceLocation ClassLoc,
|
|
IdentifierInfo *SuperName,
|
|
SourceLocation SuperLoc,
|
|
const DeclPtrTy *ProtoRefs,
|
|
unsigned NumProtoRefs,
|
|
SourceLocation EndProtoLoc,
|
|
AttributeList *AttrList);
|
|
|
|
virtual DeclPtrTy ActOnCompatiblityAlias(
|
|
SourceLocation AtCompatibilityAliasLoc,
|
|
IdentifierInfo *AliasName, SourceLocation AliasLocation,
|
|
IdentifierInfo *ClassName, SourceLocation ClassLocation);
|
|
|
|
void CheckForwardProtocolDeclarationForCircularDependency(
|
|
IdentifierInfo *PName,
|
|
SourceLocation &PLoc, SourceLocation PrevLoc,
|
|
const ObjCList<ObjCProtocolDecl> &PList);
|
|
|
|
virtual DeclPtrTy ActOnStartProtocolInterface(
|
|
SourceLocation AtProtoInterfaceLoc,
|
|
IdentifierInfo *ProtocolName, SourceLocation ProtocolLoc,
|
|
const DeclPtrTy *ProtoRefNames, unsigned NumProtoRefs,
|
|
SourceLocation EndProtoLoc,
|
|
AttributeList *AttrList);
|
|
|
|
virtual DeclPtrTy ActOnStartCategoryInterface(SourceLocation AtInterfaceLoc,
|
|
IdentifierInfo *ClassName,
|
|
SourceLocation ClassLoc,
|
|
IdentifierInfo *CategoryName,
|
|
SourceLocation CategoryLoc,
|
|
const DeclPtrTy *ProtoRefs,
|
|
unsigned NumProtoRefs,
|
|
SourceLocation EndProtoLoc);
|
|
|
|
virtual DeclPtrTy ActOnStartClassImplementation(
|
|
SourceLocation AtClassImplLoc,
|
|
IdentifierInfo *ClassName, SourceLocation ClassLoc,
|
|
IdentifierInfo *SuperClassname,
|
|
SourceLocation SuperClassLoc);
|
|
|
|
virtual DeclPtrTy ActOnStartCategoryImplementation(
|
|
SourceLocation AtCatImplLoc,
|
|
IdentifierInfo *ClassName,
|
|
SourceLocation ClassLoc,
|
|
IdentifierInfo *CatName,
|
|
SourceLocation CatLoc);
|
|
|
|
virtual DeclPtrTy ActOnForwardClassDeclaration(SourceLocation Loc,
|
|
IdentifierInfo **IdentList,
|
|
unsigned NumElts);
|
|
|
|
virtual DeclPtrTy ActOnForwardProtocolDeclaration(SourceLocation AtProtocolLoc,
|
|
const IdentifierLocPair *IdentList,
|
|
unsigned NumElts,
|
|
AttributeList *attrList);
|
|
|
|
virtual void FindProtocolDeclaration(bool WarnOnDeclarations,
|
|
const IdentifierLocPair *ProtocolId,
|
|
unsigned NumProtocols,
|
|
llvm::SmallVectorImpl<DeclPtrTy> &Protocols);
|
|
|
|
/// Ensure attributes are consistent with type.
|
|
/// \param [in, out] Attributes The attributes to check; they will
|
|
/// be modified to be consistent with \arg PropertyTy.
|
|
void CheckObjCPropertyAttributes(QualType PropertyTy,
|
|
SourceLocation Loc,
|
|
unsigned &Attributes);
|
|
void ProcessPropertyDecl(ObjCPropertyDecl *property, ObjCContainerDecl *DC);
|
|
void DiagnosePropertyMismatch(ObjCPropertyDecl *Property,
|
|
ObjCPropertyDecl *SuperProperty,
|
|
const IdentifierInfo *Name);
|
|
void ComparePropertiesInBaseAndSuper(ObjCInterfaceDecl *IDecl);
|
|
|
|
void CompareMethodParamsInBaseAndSuper(Decl *IDecl,
|
|
ObjCMethodDecl *MethodDecl,
|
|
bool IsInstance);
|
|
|
|
void MergeProtocolPropertiesIntoClass(Decl *CDecl,
|
|
DeclPtrTy MergeProtocols);
|
|
|
|
void DiagnoseClassExtensionDupMethods(ObjCCategoryDecl *CAT,
|
|
ObjCInterfaceDecl *ID);
|
|
|
|
void MergeOneProtocolPropertiesIntoClass(Decl *CDecl,
|
|
ObjCProtocolDecl *PDecl);
|
|
|
|
virtual void ActOnAtEnd(SourceLocation AtEndLoc, DeclPtrTy classDecl,
|
|
DeclPtrTy *allMethods = 0, unsigned allNum = 0,
|
|
DeclPtrTy *allProperties = 0, unsigned pNum = 0,
|
|
DeclGroupPtrTy *allTUVars = 0, unsigned tuvNum = 0);
|
|
|
|
virtual DeclPtrTy ActOnProperty(Scope *S, SourceLocation AtLoc,
|
|
FieldDeclarator &FD, ObjCDeclSpec &ODS,
|
|
Selector GetterSel, Selector SetterSel,
|
|
DeclPtrTy ClassCategory,
|
|
bool *OverridingProperty,
|
|
tok::ObjCKeywordKind MethodImplKind);
|
|
|
|
virtual DeclPtrTy ActOnPropertyImplDecl(SourceLocation AtLoc,
|
|
SourceLocation PropertyLoc,
|
|
bool ImplKind,DeclPtrTy ClassImplDecl,
|
|
IdentifierInfo *PropertyId,
|
|
IdentifierInfo *PropertyIvar);
|
|
|
|
virtual DeclPtrTy ActOnMethodDeclaration(
|
|
SourceLocation BeginLoc, // location of the + or -.
|
|
SourceLocation EndLoc, // location of the ; or {.
|
|
tok::TokenKind MethodType,
|
|
DeclPtrTy ClassDecl, ObjCDeclSpec &ReturnQT, TypeTy *ReturnType,
|
|
Selector Sel,
|
|
// optional arguments. The number of types/arguments is obtained
|
|
// from the Sel.getNumArgs().
|
|
ObjCArgInfo *ArgInfo,
|
|
llvm::SmallVectorImpl<Declarator> &Cdecls,
|
|
AttributeList *AttrList, tok::ObjCKeywordKind MethodImplKind,
|
|
bool isVariadic = false);
|
|
|
|
// Helper method for ActOnClassMethod/ActOnInstanceMethod.
|
|
// Will search "local" class/category implementations for a method decl.
|
|
// Will also search in class's root looking for instance method.
|
|
// Returns 0 if no method is found.
|
|
ObjCMethodDecl *LookupPrivateClassMethod(Selector Sel,
|
|
ObjCInterfaceDecl *CDecl);
|
|
ObjCMethodDecl *LookupPrivateInstanceMethod(Selector Sel,
|
|
ObjCInterfaceDecl *ClassDecl);
|
|
|
|
virtual OwningExprResult ActOnClassPropertyRefExpr(
|
|
IdentifierInfo &receiverName,
|
|
IdentifierInfo &propertyName,
|
|
SourceLocation &receiverNameLoc,
|
|
SourceLocation &propertyNameLoc);
|
|
|
|
// ActOnClassMessage - used for both unary and keyword messages.
|
|
// ArgExprs is optional - if it is present, the number of expressions
|
|
// is obtained from NumArgs.
|
|
virtual ExprResult ActOnClassMessage(
|
|
Scope *S,
|
|
IdentifierInfo *receivingClassName, Selector Sel, SourceLocation lbrac,
|
|
SourceLocation receiverLoc, SourceLocation selectorLoc,SourceLocation rbrac,
|
|
ExprTy **ArgExprs, unsigned NumArgs);
|
|
|
|
// ActOnInstanceMessage - used for both unary and keyword messages.
|
|
// ArgExprs is optional - if it is present, the number of expressions
|
|
// is obtained from NumArgs.
|
|
virtual ExprResult ActOnInstanceMessage(
|
|
ExprTy *receiver, Selector Sel,
|
|
SourceLocation lbrac, SourceLocation receiverLoc, SourceLocation rbrac,
|
|
ExprTy **ArgExprs, unsigned NumArgs);
|
|
|
|
/// ActOnPragmaPack - Called on well formed #pragma pack(...).
|
|
virtual void ActOnPragmaPack(PragmaPackKind Kind,
|
|
IdentifierInfo *Name,
|
|
ExprTy *Alignment,
|
|
SourceLocation PragmaLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation RParenLoc);
|
|
|
|
/// ActOnPragmaUnused - Called on well-formed '#pragma unused'.
|
|
virtual void ActOnPragmaUnused(const Token *Identifiers,
|
|
unsigned NumIdentifiers, Scope *curScope,
|
|
SourceLocation PragmaLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation RParenLoc);
|
|
|
|
NamedDecl *DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II);
|
|
void DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W);
|
|
|
|
/// ActOnPragmaWeakID - Called on well formed #pragma weak ident.
|
|
virtual void ActOnPragmaWeakID(IdentifierInfo* WeakName,
|
|
SourceLocation PragmaLoc,
|
|
SourceLocation WeakNameLoc);
|
|
|
|
/// ActOnPragmaWeakAlias - Called on well formed #pragma weak ident = ident.
|
|
virtual void ActOnPragmaWeakAlias(IdentifierInfo* WeakName,
|
|
IdentifierInfo* AliasName,
|
|
SourceLocation PragmaLoc,
|
|
SourceLocation WeakNameLoc,
|
|
SourceLocation AliasNameLoc);
|
|
|
|
/// getPragmaPackAlignment() - Return the current alignment as specified by
|
|
/// the current #pragma pack directive, or 0 if none is currently active.
|
|
unsigned getPragmaPackAlignment() const;
|
|
|
|
/// FreePackedContext - Deallocate and null out PackContext.
|
|
void FreePackedContext();
|
|
|
|
/// ImpCastExprToType - If Expr is not of type 'Type', insert an implicit
|
|
/// cast. If there is already an implicit cast, merge into the existing one.
|
|
/// If isLvalue, the result of the cast is an lvalue.
|
|
void ImpCastExprToType(Expr *&Expr, QualType Type,
|
|
CastExpr::CastKind Kind = CastExpr::CK_Unknown,
|
|
bool isLvalue = false);
|
|
|
|
// UsualUnaryConversions - promotes integers (C99 6.3.1.1p2) and converts
|
|
// functions and arrays to their respective pointers (C99 6.3.2.1).
|
|
Expr *UsualUnaryConversions(Expr *&expr);
|
|
|
|
// DefaultFunctionArrayConversion - converts functions and arrays
|
|
// to their respective pointers (C99 6.3.2.1).
|
|
void DefaultFunctionArrayConversion(Expr *&expr);
|
|
|
|
// DefaultArgumentPromotion (C99 6.5.2.2p6). Used for function calls that
|
|
// do not have a prototype. Integer promotions are performed on each
|
|
// argument, and arguments that have type float are promoted to double.
|
|
void DefaultArgumentPromotion(Expr *&Expr);
|
|
|
|
// Used for emitting the right warning by DefaultVariadicArgumentPromotion
|
|
enum VariadicCallType {
|
|
VariadicFunction,
|
|
VariadicBlock,
|
|
VariadicMethod,
|
|
VariadicConstructor
|
|
};
|
|
|
|
// DefaultVariadicArgumentPromotion - Like DefaultArgumentPromotion, but
|
|
// will warn if the resulting type is not a POD type.
|
|
bool DefaultVariadicArgumentPromotion(Expr *&Expr, VariadicCallType CT);
|
|
|
|
// UsualArithmeticConversions - performs the UsualUnaryConversions on it's
|
|
// operands and then handles various conversions that are common to binary
|
|
// operators (C99 6.3.1.8). If both operands aren't arithmetic, this
|
|
// routine returns the first non-arithmetic type found. The client is
|
|
// responsible for emitting appropriate error diagnostics.
|
|
QualType UsualArithmeticConversions(Expr *&lExpr, Expr *&rExpr,
|
|
bool isCompAssign = false);
|
|
|
|
/// AssignConvertType - All of the 'assignment' semantic checks return this
|
|
/// enum to indicate whether the assignment was allowed. These checks are
|
|
/// done for simple assignments, as well as initialization, return from
|
|
/// function, argument passing, etc. The query is phrased in terms of a
|
|
/// source and destination type.
|
|
enum AssignConvertType {
|
|
/// Compatible - the types are compatible according to the standard.
|
|
Compatible,
|
|
|
|
/// PointerToInt - The assignment converts a pointer to an int, which we
|
|
/// accept as an extension.
|
|
PointerToInt,
|
|
|
|
/// IntToPointer - The assignment converts an int to a pointer, which we
|
|
/// accept as an extension.
|
|
IntToPointer,
|
|
|
|
/// FunctionVoidPointer - The assignment is between a function pointer and
|
|
/// void*, which the standard doesn't allow, but we accept as an extension.
|
|
FunctionVoidPointer,
|
|
|
|
/// IncompatiblePointer - The assignment is between two pointers types that
|
|
/// are not compatible, but we accept them as an extension.
|
|
IncompatiblePointer,
|
|
|
|
/// IncompatiblePointer - The assignment is between two pointers types which
|
|
/// point to integers which have a different sign, but are otherwise identical.
|
|
/// This is a subset of the above, but broken out because it's by far the most
|
|
/// common case of incompatible pointers.
|
|
IncompatiblePointerSign,
|
|
|
|
/// CompatiblePointerDiscardsQualifiers - The assignment discards
|
|
/// c/v/r qualifiers, which we accept as an extension.
|
|
CompatiblePointerDiscardsQualifiers,
|
|
|
|
/// IncompatibleVectors - The assignment is between two vector types that
|
|
/// have the same size, which we accept as an extension.
|
|
IncompatibleVectors,
|
|
|
|
/// IntToBlockPointer - The assignment converts an int to a block
|
|
/// pointer. We disallow this.
|
|
IntToBlockPointer,
|
|
|
|
/// IncompatibleBlockPointer - The assignment is between two block
|
|
/// pointers types that are not compatible.
|
|
IncompatibleBlockPointer,
|
|
|
|
/// IncompatibleObjCQualifiedId - The assignment is between a qualified
|
|
/// id type and something else (that is incompatible with it). For example,
|
|
/// "id <XXX>" = "Foo *", where "Foo *" doesn't implement the XXX protocol.
|
|
IncompatibleObjCQualifiedId,
|
|
|
|
/// Incompatible - We reject this conversion outright, it is invalid to
|
|
/// represent it in the AST.
|
|
Incompatible
|
|
};
|
|
|
|
/// DiagnoseAssignmentResult - Emit a diagnostic, if required, for the
|
|
/// assignment conversion type specified by ConvTy. This returns true if the
|
|
/// conversion was invalid or false if the conversion was accepted.
|
|
bool DiagnoseAssignmentResult(AssignConvertType ConvTy,
|
|
SourceLocation Loc,
|
|
QualType DstType, QualType SrcType,
|
|
Expr *SrcExpr, const char *Flavor);
|
|
|
|
/// CheckAssignmentConstraints - Perform type checking for assignment,
|
|
/// argument passing, variable initialization, and function return values.
|
|
/// This routine is only used by the following two methods. C99 6.5.16.
|
|
AssignConvertType CheckAssignmentConstraints(QualType lhs, QualType rhs);
|
|
|
|
// CheckSingleAssignmentConstraints - Currently used by
|
|
// CheckAssignmentOperands, and ActOnReturnStmt. Prior to type checking,
|
|
// this routine performs the default function/array converions.
|
|
AssignConvertType CheckSingleAssignmentConstraints(QualType lhs,
|
|
Expr *&rExpr);
|
|
|
|
// \brief If the lhs type is a transparent union, check whether we
|
|
// can initialize the transparent union with the given expression.
|
|
AssignConvertType CheckTransparentUnionArgumentConstraints(QualType lhs,
|
|
Expr *&rExpr);
|
|
|
|
// Helper function for CheckAssignmentConstraints (C99 6.5.16.1p1)
|
|
AssignConvertType CheckPointerTypesForAssignment(QualType lhsType,
|
|
QualType rhsType);
|
|
|
|
// Helper function for CheckAssignmentConstraints involving two
|
|
// block pointer types.
|
|
AssignConvertType CheckBlockPointerTypesForAssignment(QualType lhsType,
|
|
QualType rhsType);
|
|
|
|
bool IsStringLiteralToNonConstPointerConversion(Expr *From, QualType ToType);
|
|
|
|
bool PerformImplicitConversion(Expr *&From, QualType ToType,
|
|
const char *Flavor,
|
|
bool AllowExplicit = false,
|
|
bool Elidable = false);
|
|
bool PerformImplicitConversion(Expr *&From, QualType ToType,
|
|
const ImplicitConversionSequence& ICS,
|
|
const char *Flavor);
|
|
bool PerformImplicitConversion(Expr *&From, QualType ToType,
|
|
const StandardConversionSequence& SCS,
|
|
const char *Flavor);
|
|
|
|
/// the following "Check" methods will return a valid/converted QualType
|
|
/// or a null QualType (indicating an error diagnostic was issued).
|
|
|
|
/// type checking binary operators (subroutines of CreateBuiltinBinOp).
|
|
QualType InvalidOperands(SourceLocation l, Expr *&lex, Expr *&rex);
|
|
QualType CheckPointerToMemberOperands( // C++ 5.5
|
|
Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isIndirect);
|
|
QualType CheckMultiplyDivideOperands( // C99 6.5.5
|
|
Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isCompAssign = false);
|
|
QualType CheckRemainderOperands( // C99 6.5.5
|
|
Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isCompAssign = false);
|
|
QualType CheckAdditionOperands( // C99 6.5.6
|
|
Expr *&lex, Expr *&rex, SourceLocation OpLoc, QualType* CompLHSTy = 0);
|
|
QualType CheckSubtractionOperands( // C99 6.5.6
|
|
Expr *&lex, Expr *&rex, SourceLocation OpLoc, QualType* CompLHSTy = 0);
|
|
QualType CheckShiftOperands( // C99 6.5.7
|
|
Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isCompAssign = false);
|
|
QualType CheckCompareOperands( // C99 6.5.8/9
|
|
Expr *&lex, Expr *&rex, SourceLocation OpLoc, unsigned Opc, bool isRelational);
|
|
QualType CheckBitwiseOperands( // C99 6.5.[10...12]
|
|
Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isCompAssign = false);
|
|
QualType CheckLogicalOperands( // C99 6.5.[13,14]
|
|
Expr *&lex, Expr *&rex, SourceLocation OpLoc);
|
|
// CheckAssignmentOperands is used for both simple and compound assignment.
|
|
// For simple assignment, pass both expressions and a null converted type.
|
|
// For compound assignment, pass both expressions and the converted type.
|
|
QualType CheckAssignmentOperands( // C99 6.5.16.[1,2]
|
|
Expr *lex, Expr *&rex, SourceLocation OpLoc, QualType convertedType);
|
|
QualType CheckCommaOperands( // C99 6.5.17
|
|
Expr *lex, Expr *&rex, SourceLocation OpLoc);
|
|
QualType CheckConditionalOperands( // C99 6.5.15
|
|
Expr *&cond, Expr *&lhs, Expr *&rhs, SourceLocation questionLoc);
|
|
QualType CXXCheckConditionalOperands( // C++ 5.16
|
|
Expr *&cond, Expr *&lhs, Expr *&rhs, SourceLocation questionLoc);
|
|
QualType FindCompositePointerType(Expr *&E1, Expr *&E2); // C++ 5.9
|
|
|
|
/// type checking for vector binary operators.
|
|
inline QualType CheckVectorOperands(SourceLocation l, Expr *&lex, Expr *&rex);
|
|
inline QualType CheckVectorCompareOperands(Expr *&lex, Expr *&rx,
|
|
SourceLocation l, bool isRel);
|
|
|
|
/// type checking unary operators (subroutines of ActOnUnaryOp).
|
|
/// C99 6.5.3.1, 6.5.3.2, 6.5.3.4
|
|
QualType CheckIncrementDecrementOperand(Expr *op, SourceLocation OpLoc,
|
|
bool isInc);
|
|
QualType CheckAddressOfOperand(Expr *op, SourceLocation OpLoc);
|
|
QualType CheckIndirectionOperand(Expr *op, SourceLocation OpLoc);
|
|
QualType CheckRealImagOperand(Expr *&Op, SourceLocation OpLoc, bool isReal);
|
|
|
|
/// type checking primary expressions.
|
|
QualType CheckExtVectorComponent(QualType baseType, SourceLocation OpLoc,
|
|
const IdentifierInfo *Comp,
|
|
SourceLocation CmpLoc);
|
|
|
|
/// type checking declaration initializers (C99 6.7.8)
|
|
|
|
bool CheckInitializerTypes(Expr *&simpleInit_or_initList, QualType &declType,
|
|
SourceLocation InitLoc,DeclarationName InitEntity,
|
|
bool DirectInit);
|
|
bool CheckInitList(InitListExpr *&InitList, QualType &DeclType);
|
|
bool CheckForConstantInitializer(Expr *e, QualType t);
|
|
|
|
bool CheckValueInitialization(QualType Type, SourceLocation Loc);
|
|
|
|
// type checking C++ declaration initializers (C++ [dcl.init]).
|
|
|
|
/// ReferenceCompareResult - Expresses the result of comparing two
|
|
/// types (cv1 T1 and cv2 T2) to determine their compatibility for the
|
|
/// purposes of initialization by reference (C++ [dcl.init.ref]p4).
|
|
enum ReferenceCompareResult {
|
|
/// Ref_Incompatible - The two types are incompatible, so direct
|
|
/// reference binding is not possible.
|
|
Ref_Incompatible = 0,
|
|
/// Ref_Related - The two types are reference-related, which means
|
|
/// that their unqualified forms (T1 and T2) are either the same
|
|
/// or T1 is a base class of T2.
|
|
Ref_Related,
|
|
/// Ref_Compatible_With_Added_Qualification - The two types are
|
|
/// reference-compatible with added qualification, meaning that
|
|
/// they are reference-compatible and the qualifiers on T1 (cv1)
|
|
/// are greater than the qualifiers on T2 (cv2).
|
|
Ref_Compatible_With_Added_Qualification,
|
|
/// Ref_Compatible - The two types are reference-compatible and
|
|
/// have equivalent qualifiers (cv1 == cv2).
|
|
Ref_Compatible
|
|
};
|
|
|
|
ReferenceCompareResult CompareReferenceRelationship(QualType T1, QualType T2,
|
|
bool& DerivedToBase);
|
|
|
|
bool CheckReferenceInit(Expr *&simpleInit_or_initList, QualType declType,
|
|
bool SuppressUserConversions,
|
|
bool AllowExplicit,
|
|
bool ForceRValue,
|
|
ImplicitConversionSequence *ICS = 0);
|
|
|
|
/// CheckCastTypes - Check type constraints for casting between types under
|
|
/// C semantics, or forward to CXXCheckCStyleCast in C++.
|
|
bool CheckCastTypes(SourceRange TyRange, QualType CastTy, Expr *&CastExpr,
|
|
CastExpr::CastKind &Kind,
|
|
CXXMethodDecl *& ConversionDecl,
|
|
bool FunctionalStyle = false);
|
|
|
|
// CheckVectorCast - check type constraints for vectors.
|
|
// Since vectors are an extension, there are no C standard reference for this.
|
|
// We allow casting between vectors and integer datatypes of the same size.
|
|
// returns true if the cast is invalid
|
|
bool CheckVectorCast(SourceRange R, QualType VectorTy, QualType Ty);
|
|
|
|
// CheckExtVectorCast - check type constraints for extended vectors.
|
|
// Since vectors are an extension, there are no C standard reference for this.
|
|
// We allow casting between vectors and integer datatypes of the same size,
|
|
// or vectors and the element type of that vector.
|
|
// returns true if the cast is invalid
|
|
bool CheckExtVectorCast(SourceRange R, QualType VectorTy, QualType Ty);
|
|
|
|
/// CXXCheckCStyleCast - Check constraints of a C-style or function-style
|
|
/// cast under C++ semantics.
|
|
bool CXXCheckCStyleCast(SourceRange R, QualType CastTy, Expr *&CastExpr,
|
|
CastExpr::CastKind &Kind, bool FunctionalStyle,
|
|
CXXMethodDecl *&ConversionDecl);
|
|
|
|
/// CheckMessageArgumentTypes - Check types in an Obj-C message send.
|
|
/// \param Method - May be null.
|
|
/// \param [out] ReturnType - The return type of the send.
|
|
/// \return true iff there were any incompatible types.
|
|
bool CheckMessageArgumentTypes(Expr **Args, unsigned NumArgs, Selector Sel,
|
|
ObjCMethodDecl *Method, bool isClassMessage,
|
|
SourceLocation lbrac, SourceLocation rbrac,
|
|
QualType &ReturnType);
|
|
|
|
/// CheckCXXBooleanCondition - Returns true if conversion to bool is invalid.
|
|
bool CheckCXXBooleanCondition(Expr *&CondExpr);
|
|
|
|
/// ConvertIntegerToTypeWarnOnOverflow - Convert the specified APInt to have
|
|
/// the specified width and sign. If an overflow occurs, detect it and emit
|
|
/// the specified diagnostic.
|
|
void ConvertIntegerToTypeWarnOnOverflow(llvm::APSInt &OldVal,
|
|
unsigned NewWidth, bool NewSign,
|
|
SourceLocation Loc, unsigned DiagID);
|
|
|
|
/// Checks that the Objective-C declaration is declared in the global scope.
|
|
/// Emits an error and marks the declaration as invalid if it's not declared
|
|
/// in the global scope.
|
|
bool CheckObjCDeclScope(Decl *D);
|
|
|
|
void InitBuiltinVaListType();
|
|
|
|
/// VerifyIntegerConstantExpression - verifies that an expression is an ICE,
|
|
/// and reports the appropriate diagnostics. Returns false on success.
|
|
/// Can optionally return the value of the expression.
|
|
bool VerifyIntegerConstantExpression(const Expr *E, llvm::APSInt *Result = 0);
|
|
|
|
/// VerifyBitField - verifies that a bit field expression is an ICE and has
|
|
/// the correct width, and that the field type is valid.
|
|
/// Returns false on success.
|
|
/// Can optionally return whether the bit-field is of width 0
|
|
bool VerifyBitField(SourceLocation FieldLoc, IdentifierInfo *FieldName,
|
|
QualType FieldTy, const Expr *BitWidth,
|
|
bool *ZeroWidth = 0);
|
|
|
|
void DiagnoseMissingMember(SourceLocation MemberLoc, DeclarationName Member,
|
|
NestedNameSpecifier *NNS, SourceRange Range);
|
|
|
|
/// adjustFunctionParamType - Converts the type of a function parameter to a
|
|
// type that can be passed as an argument type to
|
|
/// ASTContext::getFunctionType.
|
|
///
|
|
/// C++ [dcl.fct]p3: "...Any cv-qualifier modifying a parameter type is
|
|
/// deleted. Such cv-qualifiers affect only the definition of the parameter
|
|
/// within the body of the function; they do not affect the function type.
|
|
QualType adjustFunctionParamType(QualType T) const {
|
|
if (!Context.getLangOptions().CPlusPlus)
|
|
return T;
|
|
|
|
return T.getUnqualifiedType();
|
|
}
|
|
|
|
/// \name Code completion
|
|
//@{
|
|
void setCodeCompleteConsumer(CodeCompleteConsumer *CCC);
|
|
virtual void CodeCompleteOrdinaryName(Scope *S);
|
|
virtual void CodeCompleteMemberReferenceExpr(Scope *S, ExprTy *Base,
|
|
SourceLocation OpLoc,
|
|
bool IsArrow);
|
|
virtual void CodeCompleteTag(Scope *S, unsigned TagSpec);
|
|
virtual void CodeCompleteCase(Scope *S);
|
|
virtual void CodeCompleteCall(Scope *S, ExprTy *Fn,
|
|
ExprTy **Args, unsigned NumArgs);
|
|
virtual void CodeCompleteQualifiedId(Scope *S, const CXXScopeSpec &SS,
|
|
bool EnteringContext);
|
|
virtual void CodeCompleteUsing(Scope *S);
|
|
virtual void CodeCompleteUsingDirective(Scope *S);
|
|
virtual void CodeCompleteNamespaceDecl(Scope *S);
|
|
virtual void CodeCompleteNamespaceAliasDecl(Scope *S);
|
|
virtual void CodeCompleteOperatorName(Scope *S);
|
|
//@}
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Extra semantic analysis beyond the C type system
|
|
private:
|
|
bool CheckFunctionCall(FunctionDecl *FDecl, CallExpr *TheCall);
|
|
bool CheckBlockCall(NamedDecl *NDecl, CallExpr *TheCall);
|
|
|
|
SourceLocation getLocationOfStringLiteralByte(const StringLiteral *SL,
|
|
unsigned ByteNo) const;
|
|
bool CheckablePrintfAttr(const FormatAttr *Format, CallExpr *TheCall);
|
|
bool CheckObjCString(Expr *Arg);
|
|
|
|
Action::OwningExprResult CheckBuiltinFunctionCall(unsigned BuiltinID,
|
|
CallExpr *TheCall);
|
|
bool SemaBuiltinVAStart(CallExpr *TheCall);
|
|
bool SemaBuiltinUnorderedCompare(CallExpr *TheCall);
|
|
bool SemaBuiltinUnaryFP(CallExpr *TheCall);
|
|
bool SemaBuiltinStackAddress(CallExpr *TheCall);
|
|
|
|
public:
|
|
// Used by C++ template instantiation.
|
|
Action::OwningExprResult SemaBuiltinShuffleVector(CallExpr *TheCall);
|
|
|
|
private:
|
|
bool SemaBuiltinPrefetch(CallExpr *TheCall);
|
|
bool SemaBuiltinObjectSize(CallExpr *TheCall);
|
|
bool SemaBuiltinLongjmp(CallExpr *TheCall);
|
|
bool SemaBuiltinAtomicOverloaded(CallExpr *TheCall);
|
|
bool SemaCheckStringLiteral(const Expr *E, const CallExpr *TheCall,
|
|
bool HasVAListArg, unsigned format_idx,
|
|
unsigned firstDataArg);
|
|
void CheckPrintfString(const StringLiteral *FExpr, const Expr *OrigFormatExpr,
|
|
const CallExpr *TheCall, bool HasVAListArg,
|
|
unsigned format_idx, unsigned firstDataArg);
|
|
void CheckNonNullArguments(const NonNullAttr *NonNull,
|
|
const CallExpr *TheCall);
|
|
void CheckPrintfArguments(const CallExpr *TheCall, bool HasVAListArg,
|
|
unsigned format_idx, unsigned firstDataArg);
|
|
void CheckReturnStackAddr(Expr *RetValExp, QualType lhsType,
|
|
SourceLocation ReturnLoc);
|
|
void CheckFloatComparison(SourceLocation loc, Expr* lex, Expr* rex);
|
|
};
|
|
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Typed version of Parser::ExprArg (smart pointer for wrapping Expr pointers).
|
|
template <typename T>
|
|
class ExprOwningPtr : public Action::ExprArg {
|
|
public:
|
|
ExprOwningPtr(Sema *S, T *expr) : Action::ExprArg(*S, expr) {}
|
|
|
|
void reset(T* p) { Action::ExprArg::operator=(p); }
|
|
T* get() const { return static_cast<T*>(Action::ExprArg::get()); }
|
|
T* take() { return static_cast<T*>(Action::ExprArg::take()); }
|
|
T* release() { return take(); }
|
|
|
|
T& operator*() const { return *get(); }
|
|
T* operator->() const { return get(); }
|
|
};
|
|
|
|
} // end namespace clang
|
|
|
|
#endif
|