forked from OSchip/llvm-project
550 lines
16 KiB
C++
550 lines
16 KiB
C++
//===- IndexingContext.h - Higher level API functions -----------*- 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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#include "CXCursor.h"
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#include "Index_Internal.h"
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#include "clang/AST/DeclGroup.h"
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#include "clang/AST/DeclObjC.h"
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#include "llvm/ADT/DenseSet.h"
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#include <deque>
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namespace clang {
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class FileEntry;
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class ObjCPropertyDecl;
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class ClassTemplateDecl;
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class FunctionTemplateDecl;
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class TypeAliasTemplateDecl;
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class ClassTemplateSpecializationDecl;
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namespace cxindex {
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class IndexingContext;
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class AttrListInfo;
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class ScratchAlloc {
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IndexingContext &IdxCtx;
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public:
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explicit ScratchAlloc(IndexingContext &indexCtx);
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ScratchAlloc(const ScratchAlloc &SA);
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~ScratchAlloc();
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const char *toCStr(StringRef Str);
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const char *copyCStr(StringRef Str);
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template <typename T>
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T *allocate();
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};
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struct EntityInfo : public CXIdxEntityInfo {
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const NamedDecl *Dcl;
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IndexingContext *IndexCtx;
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IntrusiveRefCntPtr<AttrListInfo> AttrList;
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EntityInfo() {
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name = USR = 0;
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attributes = 0;
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numAttributes = 0;
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}
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};
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struct ContainerInfo : public CXIdxContainerInfo {
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const DeclContext *DC;
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IndexingContext *IndexCtx;
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};
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struct DeclInfo : public CXIdxDeclInfo {
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enum DInfoKind {
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Info_Decl,
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Info_ObjCContainer,
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Info_ObjCInterface,
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Info_ObjCProtocol,
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Info_ObjCCategory,
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Info_ObjCProperty,
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Info_CXXClass
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};
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DInfoKind Kind;
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EntityInfo EntInfo;
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ContainerInfo SemanticContainer;
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ContainerInfo LexicalContainer;
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ContainerInfo DeclAsContainer;
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DeclInfo(bool isRedeclaration, bool isDefinition, bool isContainer)
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: Kind(Info_Decl) {
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this->isRedeclaration = isRedeclaration;
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this->isDefinition = isDefinition;
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this->isContainer = isContainer;
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attributes = 0;
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numAttributes = 0;
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declAsContainer = semanticContainer = lexicalContainer = 0;
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flags = 0;
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}
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DeclInfo(DInfoKind K,
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bool isRedeclaration, bool isDefinition, bool isContainer)
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: Kind(K) {
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this->isRedeclaration = isRedeclaration;
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this->isDefinition = isDefinition;
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this->isContainer = isContainer;
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attributes = 0;
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numAttributes = 0;
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declAsContainer = semanticContainer = lexicalContainer = 0;
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flags = 0;
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}
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};
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struct ObjCContainerDeclInfo : public DeclInfo {
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CXIdxObjCContainerDeclInfo ObjCContDeclInfo;
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ObjCContainerDeclInfo(bool isForwardRef,
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bool isRedeclaration,
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bool isImplementation)
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: DeclInfo(Info_ObjCContainer, isRedeclaration,
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/*isDefinition=*/!isForwardRef, /*isContainer=*/!isForwardRef) {
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init(isForwardRef, isImplementation);
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}
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ObjCContainerDeclInfo(DInfoKind K,
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bool isForwardRef,
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bool isRedeclaration,
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bool isImplementation)
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: DeclInfo(K, isRedeclaration, /*isDefinition=*/!isForwardRef,
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/*isContainer=*/!isForwardRef) {
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init(isForwardRef, isImplementation);
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}
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static bool classof(const DeclInfo *D) {
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return Info_ObjCContainer <= D->Kind && D->Kind <= Info_ObjCCategory;
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}
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private:
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void init(bool isForwardRef, bool isImplementation) {
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if (isForwardRef)
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ObjCContDeclInfo.kind = CXIdxObjCContainer_ForwardRef;
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else if (isImplementation)
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ObjCContDeclInfo.kind = CXIdxObjCContainer_Implementation;
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else
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ObjCContDeclInfo.kind = CXIdxObjCContainer_Interface;
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}
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};
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struct ObjCInterfaceDeclInfo : public ObjCContainerDeclInfo {
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CXIdxObjCInterfaceDeclInfo ObjCInterDeclInfo;
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CXIdxObjCProtocolRefListInfo ObjCProtoListInfo;
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ObjCInterfaceDeclInfo(const ObjCInterfaceDecl *D)
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: ObjCContainerDeclInfo(Info_ObjCInterface,
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/*isForwardRef=*/false,
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/*isRedeclaration=*/D->getPreviousDecl() != 0,
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/*isImplementation=*/false) { }
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static bool classof(const DeclInfo *D) {
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return D->Kind == Info_ObjCInterface;
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}
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};
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struct ObjCProtocolDeclInfo : public ObjCContainerDeclInfo {
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CXIdxObjCProtocolRefListInfo ObjCProtoRefListInfo;
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ObjCProtocolDeclInfo(const ObjCProtocolDecl *D)
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: ObjCContainerDeclInfo(Info_ObjCProtocol,
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/*isForwardRef=*/false,
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/*isRedeclaration=*/D->getPreviousDecl(),
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/*isImplementation=*/false) { }
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static bool classof(const DeclInfo *D) {
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return D->Kind == Info_ObjCProtocol;
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}
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};
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struct ObjCCategoryDeclInfo : public ObjCContainerDeclInfo {
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CXIdxObjCCategoryDeclInfo ObjCCatDeclInfo;
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CXIdxObjCProtocolRefListInfo ObjCProtoListInfo;
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explicit ObjCCategoryDeclInfo(bool isImplementation)
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: ObjCContainerDeclInfo(Info_ObjCCategory,
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/*isForwardRef=*/false,
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/*isRedeclaration=*/isImplementation,
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/*isImplementation=*/isImplementation) { }
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static bool classof(const DeclInfo *D) {
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return D->Kind == Info_ObjCCategory;
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}
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};
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struct ObjCPropertyDeclInfo : public DeclInfo {
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CXIdxObjCPropertyDeclInfo ObjCPropDeclInfo;
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ObjCPropertyDeclInfo()
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: DeclInfo(Info_ObjCProperty,
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/*isRedeclaration=*/false, /*isDefinition=*/false,
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/*isContainer=*/false) { }
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static bool classof(const DeclInfo *D) {
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return D->Kind == Info_ObjCProperty;
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}
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};
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struct CXXClassDeclInfo : public DeclInfo {
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CXIdxCXXClassDeclInfo CXXClassInfo;
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CXXClassDeclInfo(bool isRedeclaration, bool isDefinition)
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: DeclInfo(Info_CXXClass, isRedeclaration, isDefinition, isDefinition) { }
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static bool classof(const DeclInfo *D) {
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return D->Kind == Info_CXXClass;
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}
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};
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struct AttrInfo : public CXIdxAttrInfo {
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const Attr *A;
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AttrInfo(CXIdxAttrKind Kind, CXCursor C, CXIdxLoc Loc, const Attr *A) {
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kind = Kind;
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cursor = C;
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loc = Loc;
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this->A = A;
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}
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};
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struct IBOutletCollectionInfo : public AttrInfo {
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EntityInfo ClassInfo;
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CXIdxIBOutletCollectionAttrInfo IBCollInfo;
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IBOutletCollectionInfo(CXCursor C, CXIdxLoc Loc, const Attr *A) :
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AttrInfo(CXIdxAttr_IBOutletCollection, C, Loc, A) {
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assert(C.kind == CXCursor_IBOutletCollectionAttr);
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IBCollInfo.objcClass = 0;
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}
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IBOutletCollectionInfo(const IBOutletCollectionInfo &other);
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static bool classof(const AttrInfo *A) {
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return A->kind == CXIdxAttr_IBOutletCollection;
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}
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};
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class AttrListInfo {
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ScratchAlloc SA;
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SmallVector<AttrInfo, 2> Attrs;
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SmallVector<IBOutletCollectionInfo, 2> IBCollAttrs;
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SmallVector<CXIdxAttrInfo *, 2> CXAttrs;
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unsigned ref_cnt;
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AttrListInfo(const AttrListInfo &) LLVM_DELETED_FUNCTION;
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void operator=(const AttrListInfo &) LLVM_DELETED_FUNCTION;
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public:
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AttrListInfo(const Decl *D, IndexingContext &IdxCtx);
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static IntrusiveRefCntPtr<AttrListInfo> create(const Decl *D,
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IndexingContext &IdxCtx);
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const CXIdxAttrInfo *const *getAttrs() const {
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if (CXAttrs.empty())
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return 0;
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return CXAttrs.data();
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}
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unsigned getNumAttrs() const { return (unsigned)CXAttrs.size(); }
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/// \brief Retain/Release only useful when we allocate a AttrListInfo from the
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/// BumpPtrAllocator, and not from the stack; so that we keep a pointer
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// in the EntityInfo
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void Retain() { ++ref_cnt; }
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void Release() {
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assert (ref_cnt > 0 && "Reference count is already zero.");
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if (--ref_cnt == 0) {
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// Memory is allocated from a BumpPtrAllocator, no need to delete it.
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this->~AttrListInfo();
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}
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}
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};
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struct RefFileOccurence {
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const FileEntry *File;
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const Decl *Dcl;
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RefFileOccurence(const FileEntry *File, const Decl *Dcl)
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: File(File), Dcl(Dcl) { }
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};
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class IndexingContext {
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ASTContext *Ctx;
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CXClientData ClientData;
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IndexerCallbacks &CB;
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unsigned IndexOptions;
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CXTranslationUnit CXTU;
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typedef llvm::DenseMap<const FileEntry *, CXIdxClientFile> FileMapTy;
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typedef llvm::DenseMap<const DeclContext *, CXIdxClientContainer>
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ContainerMapTy;
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typedef llvm::DenseMap<const Decl *, CXIdxClientEntity> EntityMapTy;
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FileMapTy FileMap;
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ContainerMapTy ContainerMap;
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EntityMapTy EntityMap;
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llvm::DenseSet<RefFileOccurence> RefFileOccurences;
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std::deque<DeclGroupRef> TUDeclsInObjCContainer;
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llvm::BumpPtrAllocator StrScratch;
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unsigned StrAdapterCount;
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friend class ScratchAlloc;
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struct ObjCProtocolListInfo {
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SmallVector<CXIdxObjCProtocolRefInfo, 4> ProtInfos;
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SmallVector<EntityInfo, 4> ProtEntities;
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SmallVector<CXIdxObjCProtocolRefInfo *, 4> Prots;
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CXIdxObjCProtocolRefListInfo getListInfo() const {
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CXIdxObjCProtocolRefListInfo Info = { Prots.data(),
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(unsigned)Prots.size() };
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return Info;
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}
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ObjCProtocolListInfo(const ObjCProtocolList &ProtList,
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IndexingContext &IdxCtx,
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ScratchAlloc &SA);
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};
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struct CXXBasesListInfo {
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SmallVector<CXIdxBaseClassInfo, 4> BaseInfos;
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SmallVector<EntityInfo, 4> BaseEntities;
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SmallVector<CXIdxBaseClassInfo *, 4> CXBases;
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const CXIdxBaseClassInfo *const *getBases() const {
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return CXBases.data();
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}
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unsigned getNumBases() const { return (unsigned)CXBases.size(); }
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CXXBasesListInfo(const CXXRecordDecl *D,
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IndexingContext &IdxCtx, ScratchAlloc &SA);
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private:
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SourceLocation getBaseLoc(const CXXBaseSpecifier &Base) const;
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};
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friend class AttrListInfo;
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public:
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IndexingContext(CXClientData clientData, IndexerCallbacks &indexCallbacks,
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unsigned indexOptions, CXTranslationUnit cxTU)
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: Ctx(0), ClientData(clientData), CB(indexCallbacks),
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IndexOptions(indexOptions), CXTU(cxTU),
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StrScratch(/*size=*/1024), StrAdapterCount(0) { }
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ASTContext &getASTContext() const { return *Ctx; }
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void setASTContext(ASTContext &ctx);
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void setPreprocessor(Preprocessor &PP);
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bool shouldSuppressRefs() const {
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return IndexOptions & CXIndexOpt_SuppressRedundantRefs;
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}
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bool shouldIndexFunctionLocalSymbols() const {
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return IndexOptions & CXIndexOpt_IndexFunctionLocalSymbols;
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}
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bool shouldIndexImplicitTemplateInsts() const {
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return IndexOptions & CXIndexOpt_IndexImplicitTemplateInstantiations;
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}
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static bool isFunctionLocalDecl(const Decl *D);
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bool shouldAbort();
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bool hasDiagnosticCallback() const { return CB.diagnostic; }
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void enteredMainFile(const FileEntry *File);
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void ppIncludedFile(SourceLocation hashLoc,
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StringRef filename, const FileEntry *File,
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bool isImport, bool isAngled, bool isModuleImport);
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void importedModule(const ImportDecl *ImportD);
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void importedPCH(const FileEntry *File);
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void startedTranslationUnit();
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void indexDecl(const Decl *D);
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void indexTagDecl(const TagDecl *D);
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void indexTypeSourceInfo(TypeSourceInfo *TInfo, const NamedDecl *Parent,
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const DeclContext *DC = 0);
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void indexTypeLoc(TypeLoc TL, const NamedDecl *Parent,
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const DeclContext *DC = 0);
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void indexNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS,
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const NamedDecl *Parent,
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const DeclContext *DC = 0);
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void indexDeclContext(const DeclContext *DC);
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void indexBody(const Stmt *S, const NamedDecl *Parent,
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const DeclContext *DC = 0);
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void handleDiagnosticSet(CXDiagnosticSet CXDiagSet);
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bool handleFunction(const FunctionDecl *FD);
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bool handleVar(const VarDecl *D);
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bool handleField(const FieldDecl *D);
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bool handleEnumerator(const EnumConstantDecl *D);
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bool handleTagDecl(const TagDecl *D);
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bool handleTypedefName(const TypedefNameDecl *D);
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bool handleObjCInterface(const ObjCInterfaceDecl *D);
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bool handleObjCImplementation(const ObjCImplementationDecl *D);
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bool handleObjCProtocol(const ObjCProtocolDecl *D);
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bool handleObjCCategory(const ObjCCategoryDecl *D);
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bool handleObjCCategoryImpl(const ObjCCategoryImplDecl *D);
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bool handleObjCMethod(const ObjCMethodDecl *D);
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bool handleSynthesizedObjCProperty(const ObjCPropertyImplDecl *D);
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bool handleSynthesizedObjCMethod(const ObjCMethodDecl *D, SourceLocation Loc,
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const DeclContext *LexicalDC);
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bool handleObjCProperty(const ObjCPropertyDecl *D);
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bool handleNamespace(const NamespaceDecl *D);
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bool handleClassTemplate(const ClassTemplateDecl *D);
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bool handleFunctionTemplate(const FunctionTemplateDecl *D);
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bool handleTypeAliasTemplate(const TypeAliasTemplateDecl *D);
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bool handleReference(const NamedDecl *D, SourceLocation Loc, CXCursor Cursor,
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const NamedDecl *Parent,
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const DeclContext *DC,
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const Expr *E = 0,
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CXIdxEntityRefKind Kind = CXIdxEntityRef_Direct);
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bool handleReference(const NamedDecl *D, SourceLocation Loc,
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const NamedDecl *Parent,
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const DeclContext *DC,
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const Expr *E = 0,
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CXIdxEntityRefKind Kind = CXIdxEntityRef_Direct);
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bool isNotFromSourceFile(SourceLocation Loc) const;
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void indexTopLevelDecl(const Decl *D);
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void indexTUDeclsInObjCContainer();
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void indexDeclGroupRef(DeclGroupRef DG);
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void addTUDeclInObjCContainer(DeclGroupRef DG) {
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TUDeclsInObjCContainer.push_back(DG);
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}
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void translateLoc(SourceLocation Loc, CXIdxClientFile *indexFile, CXFile *file,
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unsigned *line, unsigned *column, unsigned *offset);
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CXIdxClientContainer getClientContainerForDC(const DeclContext *DC) const;
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void addContainerInMap(const DeclContext *DC, CXIdxClientContainer container);
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CXIdxClientEntity getClientEntity(const Decl *D) const;
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void setClientEntity(const Decl *D, CXIdxClientEntity client);
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static bool isTemplateImplicitInstantiation(const Decl *D);
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private:
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bool handleDecl(const NamedDecl *D,
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SourceLocation Loc, CXCursor Cursor,
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DeclInfo &DInfo,
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const DeclContext *LexicalDC = 0);
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bool handleObjCContainer(const ObjCContainerDecl *D,
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SourceLocation Loc, CXCursor Cursor,
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ObjCContainerDeclInfo &ContDInfo);
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bool handleCXXRecordDecl(const CXXRecordDecl *RD, const NamedDecl *OrigD);
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bool markEntityOccurrenceInFile(const NamedDecl *D, SourceLocation Loc);
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const NamedDecl *getEntityDecl(const NamedDecl *D) const;
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const DeclContext *getEntityContainer(const Decl *D) const;
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CXIdxClientFile getIndexFile(const FileEntry *File);
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CXIdxLoc getIndexLoc(SourceLocation Loc) const;
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void getEntityInfo(const NamedDecl *D,
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EntityInfo &EntityInfo,
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ScratchAlloc &SA);
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void getContainerInfo(const DeclContext *DC, ContainerInfo &ContInfo);
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CXCursor getCursor(const Decl *D) {
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return cxcursor::MakeCXCursor(D, CXTU);
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}
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CXCursor getRefCursor(const NamedDecl *D, SourceLocation Loc);
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static bool shouldIgnoreIfImplicit(const Decl *D);
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};
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inline ScratchAlloc::ScratchAlloc(IndexingContext &idxCtx) : IdxCtx(idxCtx) {
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++IdxCtx.StrAdapterCount;
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}
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inline ScratchAlloc::ScratchAlloc(const ScratchAlloc &SA) : IdxCtx(SA.IdxCtx) {
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++IdxCtx.StrAdapterCount;
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}
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inline ScratchAlloc::~ScratchAlloc() {
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--IdxCtx.StrAdapterCount;
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if (IdxCtx.StrAdapterCount == 0)
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IdxCtx.StrScratch.Reset();
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}
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template <typename T>
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inline T *ScratchAlloc::allocate() {
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return IdxCtx.StrScratch.Allocate<T>();
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}
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}} // end clang::cxindex
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namespace llvm {
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/// Define DenseMapInfo so that FileID's can be used as keys in DenseMap and
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/// DenseSets.
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template <>
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struct DenseMapInfo<clang::cxindex::RefFileOccurence> {
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static inline clang::cxindex::RefFileOccurence getEmptyKey() {
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return clang::cxindex::RefFileOccurence(0, 0);
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}
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static inline clang::cxindex::RefFileOccurence getTombstoneKey() {
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return clang::cxindex::RefFileOccurence((const clang::FileEntry *)~0,
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(const clang::Decl *)~0);
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}
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static unsigned getHashValue(clang::cxindex::RefFileOccurence S) {
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typedef std::pair<const clang::FileEntry *, const clang::Decl *> PairTy;
|
|
return DenseMapInfo<PairTy>::getHashValue(PairTy(S.File, S.Dcl));
|
|
}
|
|
|
|
static bool isEqual(clang::cxindex::RefFileOccurence LHS,
|
|
clang::cxindex::RefFileOccurence RHS) {
|
|
return LHS.File == RHS.File && LHS.Dcl == RHS.Dcl;
|
|
}
|
|
};
|
|
}
|