372 lines
11 KiB
C++
372 lines
11 KiB
C++
//===- CIndexHigh.cpp - Higher level API functions ------------------------===//
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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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#include "IndexingContext.h"
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#include "clang/AST/DeclVisitor.h"
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using namespace clang;
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using namespace cxindex;
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namespace {
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class IndexingDeclVisitor : public ConstDeclVisitor<IndexingDeclVisitor, bool> {
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IndexingContext &IndexCtx;
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public:
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explicit IndexingDeclVisitor(IndexingContext &indexCtx)
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: IndexCtx(indexCtx) { }
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/// \brief Returns true if the given method has been defined explicitly by the
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/// user.
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static bool hasUserDefined(const ObjCMethodDecl *D,
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const ObjCImplDecl *Container) {
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const ObjCMethodDecl *MD = Container->getMethod(D->getSelector(),
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D->isInstanceMethod());
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return MD && !MD->isImplicit() && MD->isThisDeclarationADefinition();
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}
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void handleDeclarator(const DeclaratorDecl *D, const NamedDecl *Parent = 0) {
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if (!Parent) Parent = D;
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if (!IndexCtx.shouldIndexFunctionLocalSymbols()) {
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IndexCtx.indexTypeSourceInfo(D->getTypeSourceInfo(), Parent);
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IndexCtx.indexNestedNameSpecifierLoc(D->getQualifierLoc(), Parent);
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} else {
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if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
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IndexCtx.handleVar(Parm);
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} else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
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for (FunctionDecl::param_const_iterator PI = FD->param_begin(),
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PE = FD->param_end();
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PI != PE; ++PI) {
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IndexCtx.handleVar(*PI);
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}
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}
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}
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}
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void handleObjCMethod(const ObjCMethodDecl *D) {
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IndexCtx.handleObjCMethod(D);
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if (D->isImplicit())
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return;
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IndexCtx.indexTypeSourceInfo(D->getResultTypeSourceInfo(), D);
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for (ObjCMethodDecl::param_const_iterator I = D->param_begin(),
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E = D->param_end();
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I != E; ++I)
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handleDeclarator(*I, D);
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if (D->isThisDeclarationADefinition()) {
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const Stmt *Body = D->getBody();
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if (Body) {
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IndexCtx.indexBody(Body, D, D);
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}
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}
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}
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bool VisitFunctionDecl(const FunctionDecl *D) {
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IndexCtx.handleFunction(D);
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handleDeclarator(D);
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if (const CXXConstructorDecl *Ctor = dyn_cast<CXXConstructorDecl>(D)) {
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// Constructor initializers.
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for (CXXConstructorDecl::init_const_iterator I = Ctor->init_begin(),
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E = Ctor->init_end();
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I != E; ++I) {
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CXXCtorInitializer *Init = *I;
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if (Init->isWritten()) {
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IndexCtx.indexTypeSourceInfo(Init->getTypeSourceInfo(), D);
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if (const FieldDecl *Member = Init->getAnyMember())
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IndexCtx.handleReference(Member, Init->getMemberLocation(), D, D);
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IndexCtx.indexBody(Init->getInit(), D, D);
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}
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}
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}
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if (D->isThisDeclarationADefinition()) {
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const Stmt *Body = D->getBody();
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if (Body) {
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IndexCtx.indexBody(Body, D, D);
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}
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}
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return true;
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}
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bool VisitVarDecl(const VarDecl *D) {
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IndexCtx.handleVar(D);
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handleDeclarator(D);
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IndexCtx.indexBody(D->getInit(), D);
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return true;
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}
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bool VisitFieldDecl(const FieldDecl *D) {
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IndexCtx.handleField(D);
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handleDeclarator(D);
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if (D->isBitField())
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IndexCtx.indexBody(D->getBitWidth(), D);
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else if (D->hasInClassInitializer())
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IndexCtx.indexBody(D->getInClassInitializer(), D);
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return true;
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}
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bool VisitMSPropertyDecl(const MSPropertyDecl *D) {
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handleDeclarator(D);
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return true;
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}
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bool VisitEnumConstantDecl(const EnumConstantDecl *D) {
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IndexCtx.handleEnumerator(D);
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IndexCtx.indexBody(D->getInitExpr(), D);
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return true;
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}
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bool VisitTypedefNameDecl(const TypedefNameDecl *D) {
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IndexCtx.handleTypedefName(D);
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IndexCtx.indexTypeSourceInfo(D->getTypeSourceInfo(), D);
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return true;
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}
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bool VisitTagDecl(const TagDecl *D) {
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// Non-free standing tags are handled in indexTypeSourceInfo.
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if (D->isFreeStanding())
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IndexCtx.indexTagDecl(D);
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return true;
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}
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bool VisitObjCInterfaceDecl(const ObjCInterfaceDecl *D) {
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IndexCtx.handleObjCInterface(D);
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if (D->isThisDeclarationADefinition()) {
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IndexCtx.indexTUDeclsInObjCContainer();
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IndexCtx.indexDeclContext(D);
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}
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return true;
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}
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bool VisitObjCProtocolDecl(const ObjCProtocolDecl *D) {
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IndexCtx.handleObjCProtocol(D);
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if (D->isThisDeclarationADefinition()) {
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IndexCtx.indexTUDeclsInObjCContainer();
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IndexCtx.indexDeclContext(D);
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}
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return true;
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}
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bool VisitObjCImplementationDecl(const ObjCImplementationDecl *D) {
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const ObjCInterfaceDecl *Class = D->getClassInterface();
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if (!Class)
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return true;
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if (Class->isImplicitInterfaceDecl())
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IndexCtx.handleObjCInterface(Class);
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IndexCtx.handleObjCImplementation(D);
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IndexCtx.indexTUDeclsInObjCContainer();
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// Index the ivars first to make sure the synthesized ivars are indexed
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// before indexing the methods that can reference them.
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for (ObjCImplementationDecl::ivar_iterator
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IvarI = D->ivar_begin(),
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IvarE = D->ivar_end(); IvarI != IvarE; ++IvarI) {
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IndexCtx.indexDecl(*IvarI);
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}
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for (DeclContext::decl_iterator
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I = D->decls_begin(), E = D->decls_end(); I != E; ++I) {
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if (!isa<ObjCIvarDecl>(*I))
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IndexCtx.indexDecl(*I);
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}
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return true;
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}
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bool VisitObjCCategoryDecl(const ObjCCategoryDecl *D) {
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IndexCtx.handleObjCCategory(D);
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IndexCtx.indexTUDeclsInObjCContainer();
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IndexCtx.indexDeclContext(D);
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return true;
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}
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bool VisitObjCCategoryImplDecl(const ObjCCategoryImplDecl *D) {
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const ObjCCategoryDecl *Cat = D->getCategoryDecl();
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if (!Cat)
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return true;
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IndexCtx.handleObjCCategoryImpl(D);
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IndexCtx.indexTUDeclsInObjCContainer();
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IndexCtx.indexDeclContext(D);
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return true;
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}
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bool VisitObjCMethodDecl(const ObjCMethodDecl *D) {
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// Methods associated with a property, even user-declared ones, are
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// handled when we handle the property.
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if (D->isPropertyAccessor())
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return true;
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handleObjCMethod(D);
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return true;
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}
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bool VisitObjCPropertyDecl(const ObjCPropertyDecl *D) {
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if (ObjCMethodDecl *MD = D->getGetterMethodDecl())
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if (MD->getLexicalDeclContext() == D->getLexicalDeclContext())
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handleObjCMethod(MD);
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if (ObjCMethodDecl *MD = D->getSetterMethodDecl())
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if (MD->getLexicalDeclContext() == D->getLexicalDeclContext())
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handleObjCMethod(MD);
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IndexCtx.handleObjCProperty(D);
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IndexCtx.indexTypeSourceInfo(D->getTypeSourceInfo(), D);
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return true;
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}
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bool VisitObjCPropertyImplDecl(const ObjCPropertyImplDecl *D) {
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ObjCPropertyDecl *PD = D->getPropertyDecl();
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IndexCtx.handleSynthesizedObjCProperty(D);
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if (D->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic)
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return true;
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assert(D->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize);
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if (ObjCIvarDecl *IvarD = D->getPropertyIvarDecl()) {
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if (!IvarD->getSynthesize())
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IndexCtx.handleReference(IvarD, D->getPropertyIvarDeclLoc(), 0,
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D->getDeclContext());
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}
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if (ObjCMethodDecl *MD = PD->getGetterMethodDecl()) {
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if (MD->isPropertyAccessor() &&
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!hasUserDefined(MD, cast<ObjCImplDecl>(D->getDeclContext())))
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IndexCtx.handleSynthesizedObjCMethod(MD, D->getLocation(),
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D->getLexicalDeclContext());
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}
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if (ObjCMethodDecl *MD = PD->getSetterMethodDecl()) {
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if (MD->isPropertyAccessor() &&
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!hasUserDefined(MD, cast<ObjCImplDecl>(D->getDeclContext())))
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IndexCtx.handleSynthesizedObjCMethod(MD, D->getLocation(),
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D->getLexicalDeclContext());
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}
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return true;
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}
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bool VisitNamespaceDecl(const NamespaceDecl *D) {
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IndexCtx.handleNamespace(D);
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IndexCtx.indexDeclContext(D);
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return true;
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}
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bool VisitUsingDecl(const UsingDecl *D) {
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// FIXME: Parent for the following is CXIdxEntity_Unexposed with no USR,
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// we should do better.
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IndexCtx.indexNestedNameSpecifierLoc(D->getQualifierLoc(), D);
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for (UsingDecl::shadow_iterator
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I = D->shadow_begin(), E = D->shadow_end(); I != E; ++I) {
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IndexCtx.handleReference((*I)->getUnderlyingDecl(), D->getLocation(),
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D, D->getLexicalDeclContext());
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}
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return true;
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}
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bool VisitUsingDirectiveDecl(const UsingDirectiveDecl *D) {
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// FIXME: Parent for the following is CXIdxEntity_Unexposed with no USR,
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// we should do better.
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IndexCtx.indexNestedNameSpecifierLoc(D->getQualifierLoc(), D);
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IndexCtx.handleReference(D->getNominatedNamespaceAsWritten(),
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D->getLocation(), D, D->getLexicalDeclContext());
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return true;
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}
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bool VisitClassTemplateDecl(const ClassTemplateDecl *D) {
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IndexCtx.handleClassTemplate(D);
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if (D->isThisDeclarationADefinition())
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IndexCtx.indexDeclContext(D->getTemplatedDecl());
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return true;
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}
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bool VisitClassTemplateSpecializationDecl(const
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ClassTemplateSpecializationDecl *D) {
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// FIXME: Notify subsequent callbacks if info comes from implicit
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// instantiation.
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if (D->isThisDeclarationADefinition() &&
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(IndexCtx.shouldIndexImplicitTemplateInsts() ||
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!IndexCtx.isTemplateImplicitInstantiation(D)))
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IndexCtx.indexTagDecl(D);
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return true;
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}
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bool VisitFunctionTemplateDecl(const FunctionTemplateDecl *D) {
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IndexCtx.handleFunctionTemplate(D);
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FunctionDecl *FD = D->getTemplatedDecl();
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handleDeclarator(FD, D);
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if (FD->isThisDeclarationADefinition()) {
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const Stmt *Body = FD->getBody();
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if (Body) {
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IndexCtx.indexBody(Body, D, FD);
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}
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}
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return true;
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}
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bool VisitTypeAliasTemplateDecl(const TypeAliasTemplateDecl *D) {
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IndexCtx.handleTypeAliasTemplate(D);
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IndexCtx.indexTypeSourceInfo(D->getTemplatedDecl()->getTypeSourceInfo(), D);
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return true;
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}
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bool VisitImportDecl(const ImportDecl *D) {
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IndexCtx.importedModule(D);
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return true;
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}
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};
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} // anonymous namespace
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void IndexingContext::indexDecl(const Decl *D) {
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if (D->isImplicit() && shouldIgnoreIfImplicit(D))
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return;
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bool Handled = IndexingDeclVisitor(*this).Visit(D);
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if (!Handled && isa<DeclContext>(D))
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indexDeclContext(cast<DeclContext>(D));
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}
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void IndexingContext::indexDeclContext(const DeclContext *DC) {
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for (DeclContext::decl_iterator
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I = DC->decls_begin(), E = DC->decls_end(); I != E; ++I) {
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indexDecl(*I);
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}
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}
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void IndexingContext::indexTopLevelDecl(const Decl *D) {
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if (isNotFromSourceFile(D->getLocation()))
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return;
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if (isa<ObjCMethodDecl>(D))
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return; // Wait for the objc container.
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indexDecl(D);
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}
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void IndexingContext::indexDeclGroupRef(DeclGroupRef DG) {
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for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I)
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indexTopLevelDecl(*I);
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}
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void IndexingContext::indexTUDeclsInObjCContainer() {
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while (!TUDeclsInObjCContainer.empty()) {
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DeclGroupRef DG = TUDeclsInObjCContainer.front();
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TUDeclsInObjCContainer.pop_front();
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indexDeclGroupRef(DG);
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}
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}
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