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llvm-project/clang/tools/libclang/IndexingContext.cpp

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//===- IndexingContext.cpp - Higher level API functions -------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "IndexingContext.h"
#include "CIndexDiagnostic.h"
#include "CXTranslationUnit.h"
#include "clang/AST/Attr.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/Frontend/ASTUnit.h"
using namespace clang;
using namespace cxindex;
using namespace cxcursor;
IndexingContext::ObjCProtocolListInfo::ObjCProtocolListInfo(
const ObjCProtocolList &ProtList,
IndexingContext &IdxCtx,
ScratchAlloc &SA) {
ObjCInterfaceDecl::protocol_loc_iterator LI = ProtList.loc_begin();
for (ObjCInterfaceDecl::protocol_iterator
I = ProtList.begin(), E = ProtList.end(); I != E; ++I, ++LI) {
SourceLocation Loc = *LI;
ObjCProtocolDecl *PD = *I;
ProtEntities.push_back(EntityInfo());
IdxCtx.getEntityInfo(PD, ProtEntities.back(), SA);
CXIdxObjCProtocolRefInfo ProtInfo = { nullptr,
MakeCursorObjCProtocolRef(PD, Loc, IdxCtx.CXTU),
IdxCtx.getIndexLoc(Loc) };
ProtInfos.push_back(ProtInfo);
if (IdxCtx.shouldSuppressRefs())
IdxCtx.markEntityOccurrenceInFile(PD, Loc);
}
for (unsigned i = 0, e = ProtInfos.size(); i != e; ++i)
ProtInfos[i].protocol = &ProtEntities[i];
for (unsigned i = 0, e = ProtInfos.size(); i != e; ++i)
Prots.push_back(&ProtInfos[i]);
}
IBOutletCollectionInfo::IBOutletCollectionInfo(
const IBOutletCollectionInfo &other)
: AttrInfo(CXIdxAttr_IBOutletCollection, other.cursor, other.loc, other.A) {
IBCollInfo.attrInfo = this;
IBCollInfo.classCursor = other.IBCollInfo.classCursor;
IBCollInfo.classLoc = other.IBCollInfo.classLoc;
if (other.IBCollInfo.objcClass) {
ClassInfo = other.ClassInfo;
IBCollInfo.objcClass = &ClassInfo;
} else
IBCollInfo.objcClass = nullptr;
}
AttrListInfo::AttrListInfo(const Decl *D, IndexingContext &IdxCtx)
: SA(IdxCtx), ref_cnt(0) {
if (!D->hasAttrs())
return;
for (const auto *A : D->attrs()) {
CXCursor C = MakeCXCursor(A, D, IdxCtx.CXTU);
CXIdxLoc Loc = IdxCtx.getIndexLoc(A->getLocation());
switch (C.kind) {
default:
Attrs.push_back(AttrInfo(CXIdxAttr_Unexposed, C, Loc, A));
break;
case CXCursor_IBActionAttr:
Attrs.push_back(AttrInfo(CXIdxAttr_IBAction, C, Loc, A));
break;
case CXCursor_IBOutletAttr:
Attrs.push_back(AttrInfo(CXIdxAttr_IBOutlet, C, Loc, A));
break;
case CXCursor_IBOutletCollectionAttr:
IBCollAttrs.push_back(IBOutletCollectionInfo(C, Loc, A));
break;
}
}
for (unsigned i = 0, e = IBCollAttrs.size(); i != e; ++i) {
IBOutletCollectionInfo &IBInfo = IBCollAttrs[i];
CXAttrs.push_back(&IBInfo);
const IBOutletCollectionAttr *
IBAttr = cast<IBOutletCollectionAttr>(IBInfo.A);
SourceLocation InterfaceLocStart =
IBAttr->getInterfaceLoc()->getTypeLoc().getLocStart();
IBInfo.IBCollInfo.attrInfo = &IBInfo;
IBInfo.IBCollInfo.classLoc = IdxCtx.getIndexLoc(InterfaceLocStart);
IBInfo.IBCollInfo.objcClass = nullptr;
IBInfo.IBCollInfo.classCursor = clang_getNullCursor();
QualType Ty = IBAttr->getInterface();
if (const ObjCObjectType *ObjectTy = Ty->getAs<ObjCObjectType>()) {
if (const ObjCInterfaceDecl *InterD = ObjectTy->getInterface()) {
IdxCtx.getEntityInfo(InterD, IBInfo.ClassInfo, SA);
IBInfo.IBCollInfo.objcClass = &IBInfo.ClassInfo;
IBInfo.IBCollInfo.classCursor =
MakeCursorObjCClassRef(InterD, InterfaceLocStart, IdxCtx.CXTU);
}
}
}
for (unsigned i = 0, e = Attrs.size(); i != e; ++i)
CXAttrs.push_back(&Attrs[i]);
}
IntrusiveRefCntPtr<AttrListInfo>
AttrListInfo::create(const Decl *D, IndexingContext &IdxCtx) {
ScratchAlloc SA(IdxCtx);
AttrListInfo *attrs = SA.allocate<AttrListInfo>();
return new (attrs) AttrListInfo(D, IdxCtx);
}
IndexingContext::CXXBasesListInfo::CXXBasesListInfo(const CXXRecordDecl *D,
IndexingContext &IdxCtx,
ScratchAlloc &SA) {
for (const auto &Base : D->bases()) {
BaseEntities.push_back(EntityInfo());
const NamedDecl *BaseD = nullptr;
QualType T = Base.getType();
SourceLocation Loc = getBaseLoc(Base);
if (const TypedefType *TDT = T->getAs<TypedefType>()) {
BaseD = TDT->getDecl();
} else if (const TemplateSpecializationType *
TST = T->getAs<TemplateSpecializationType>()) {
BaseD = TST->getTemplateName().getAsTemplateDecl();
} else if (const RecordType *RT = T->getAs<RecordType>()) {
BaseD = RT->getDecl();
}
if (BaseD)
IdxCtx.getEntityInfo(BaseD, BaseEntities.back(), SA);
CXIdxBaseClassInfo BaseInfo = { nullptr,
MakeCursorCXXBaseSpecifier(&Base, IdxCtx.CXTU),
IdxCtx.getIndexLoc(Loc) };
BaseInfos.push_back(BaseInfo);
}
for (unsigned i = 0, e = BaseInfos.size(); i != e; ++i) {
if (BaseEntities[i].name && BaseEntities[i].USR)
BaseInfos[i].base = &BaseEntities[i];
}
for (unsigned i = 0, e = BaseInfos.size(); i != e; ++i)
CXBases.push_back(&BaseInfos[i]);
}
SourceLocation IndexingContext::CXXBasesListInfo::getBaseLoc(
const CXXBaseSpecifier &Base) const {
SourceLocation Loc = Base.getSourceRange().getBegin();
TypeLoc TL;
if (Base.getTypeSourceInfo())
TL = Base.getTypeSourceInfo()->getTypeLoc();
if (TL.isNull())
return Loc;
if (QualifiedTypeLoc QL = TL.getAs<QualifiedTypeLoc>())
TL = QL.getUnqualifiedLoc();
if (ElaboratedTypeLoc EL = TL.getAs<ElaboratedTypeLoc>())
return EL.getNamedTypeLoc().getBeginLoc();
if (DependentNameTypeLoc DL = TL.getAs<DependentNameTypeLoc>())
return DL.getNameLoc();
if (DependentTemplateSpecializationTypeLoc DTL =
TL.getAs<DependentTemplateSpecializationTypeLoc>())
return DTL.getTemplateNameLoc();
return Loc;
}
const char *ScratchAlloc::toCStr(StringRef Str) {
if (Str.empty())
return "";
if (Str.data()[Str.size()] == '\0')
return Str.data();
return copyCStr(Str);
}
const char *ScratchAlloc::copyCStr(StringRef Str) {
char *buf = IdxCtx.StrScratch.Allocate<char>(Str.size() + 1);
std::uninitialized_copy(Str.begin(), Str.end(), buf);
buf[Str.size()] = '\0';
return buf;
}
void IndexingContext::setASTContext(ASTContext &ctx) {
Ctx = &ctx;
cxtu::getASTUnit(CXTU)->setASTContext(&ctx);
}
void IndexingContext::setPreprocessor(Preprocessor &PP) {
cxtu::getASTUnit(CXTU)->setPreprocessor(&PP);
}
bool IndexingContext::isFunctionLocalDecl(const Decl *D) {
assert(D);
if (!D->getParentFunctionOrMethod())
return false;
if (const NamedDecl *ND = dyn_cast<NamedDecl>(D)) {
switch (ND->getFormalLinkage()) {
case NoLinkage:
case VisibleNoLinkage:
case InternalLinkage:
return true;
case UniqueExternalLinkage:
llvm_unreachable("Not a sema linkage");
case ExternalLinkage:
return false;
}
}
return true;
}
bool IndexingContext::shouldAbort() {
if (!CB.abortQuery)
return false;
return CB.abortQuery(ClientData, nullptr);
}
void IndexingContext::enteredMainFile(const FileEntry *File) {
if (File && CB.enteredMainFile) {
CXIdxClientFile idxFile =
CB.enteredMainFile(ClientData,
static_cast<CXFile>(const_cast<FileEntry *>(File)),
nullptr);
FileMap[File] = idxFile;
}
}
void IndexingContext::ppIncludedFile(SourceLocation hashLoc,
StringRef filename,
const FileEntry *File,
bool isImport, bool isAngled,
bool isModuleImport) {
if (!CB.ppIncludedFile)
return;
ScratchAlloc SA(*this);
CXIdxIncludedFileInfo Info = { getIndexLoc(hashLoc),
SA.toCStr(filename),
static_cast<CXFile>(
const_cast<FileEntry *>(File)),
isImport, isAngled, isModuleImport };
CXIdxClientFile idxFile = CB.ppIncludedFile(ClientData, &Info);
FileMap[File] = idxFile;
}
void IndexingContext::importedModule(const ImportDecl *ImportD) {
if (!CB.importedASTFile)
return;
Module *Mod = ImportD->getImportedModule();
if (!Mod)
return;
CXIdxImportedASTFileInfo Info = {
static_cast<CXFile>(
const_cast<FileEntry *>(Mod->getASTFile())),
Mod,
getIndexLoc(ImportD->getLocation()),
ImportD->isImplicit()
};
CXIdxClientASTFile astFile = CB.importedASTFile(ClientData, &Info);
(void)astFile;
}
void IndexingContext::importedPCH(const FileEntry *File) {
if (!CB.importedASTFile)
return;
CXIdxImportedASTFileInfo Info = {
static_cast<CXFile>(
const_cast<FileEntry *>(File)),
/*module=*/nullptr,
getIndexLoc(SourceLocation()),
/*isImplicit=*/false
};
CXIdxClientASTFile astFile = CB.importedASTFile(ClientData, &Info);
(void)astFile;
}
void IndexingContext::startedTranslationUnit() {
CXIdxClientContainer idxCont = nullptr;
if (CB.startedTranslationUnit)
idxCont = CB.startedTranslationUnit(ClientData, nullptr);
addContainerInMap(Ctx->getTranslationUnitDecl(), idxCont);
}
void IndexingContext::handleDiagnosticSet(CXDiagnostic CXDiagSet) {
if (!CB.diagnostic)
return;
CB.diagnostic(ClientData, CXDiagSet, nullptr);
}
bool IndexingContext::handleDecl(const NamedDecl *D,
SourceLocation Loc, CXCursor Cursor,
DeclInfo &DInfo,
const DeclContext *LexicalDC) {
if (!CB.indexDeclaration || !D)
return false;
if (D->isImplicit() && shouldIgnoreIfImplicit(D))
return false;
ScratchAlloc SA(*this);
getEntityInfo(D, DInfo.EntInfo, SA);
if ((!shouldIndexFunctionLocalSymbols() && !DInfo.EntInfo.USR)
|| Loc.isInvalid())
return false;
if (!LexicalDC)
LexicalDC = D->getLexicalDeclContext();
if (shouldSuppressRefs())
markEntityOccurrenceInFile(D, Loc);
DInfo.entityInfo = &DInfo.EntInfo;
DInfo.cursor = Cursor;
DInfo.loc = getIndexLoc(Loc);
DInfo.isImplicit = D->isImplicit();
DInfo.attributes = DInfo.EntInfo.attributes;
DInfo.numAttributes = DInfo.EntInfo.numAttributes;
getContainerInfo(D->getDeclContext(), DInfo.SemanticContainer);
DInfo.semanticContainer = &DInfo.SemanticContainer;
if (LexicalDC == D->getDeclContext()) {
DInfo.lexicalContainer = &DInfo.SemanticContainer;
} else if (isTemplateImplicitInstantiation(D)) {
// Implicit instantiations have the lexical context of where they were
// instantiated first. We choose instead the semantic context because:
// 1) at the time that we see the instantiation we have not seen the
// function where it occurred yet.
// 2) the lexical context of the first instantiation is not useful
// information anyway.
DInfo.lexicalContainer = &DInfo.SemanticContainer;
} else {
getContainerInfo(LexicalDC, DInfo.LexicalContainer);
DInfo.lexicalContainer = &DInfo.LexicalContainer;
}
if (DInfo.isContainer) {
getContainerInfo(getEntityContainer(D), DInfo.DeclAsContainer);
DInfo.declAsContainer = &DInfo.DeclAsContainer;
}
CB.indexDeclaration(ClientData, &DInfo);
return true;
}
bool IndexingContext::handleObjCContainer(const ObjCContainerDecl *D,
SourceLocation Loc, CXCursor Cursor,
ObjCContainerDeclInfo &ContDInfo) {
ContDInfo.ObjCContDeclInfo.declInfo = &ContDInfo;
return handleDecl(D, Loc, Cursor, ContDInfo);
}
bool IndexingContext::handleFunction(const FunctionDecl *D) {
bool isDef = D->isThisDeclarationADefinition();
bool isContainer = isDef;
bool isSkipped = false;
if (D->hasSkippedBody()) {
isSkipped = true;
isDef = true;
isContainer = false;
}
DeclInfo DInfo(!D->isFirstDecl(), isDef, isContainer);
if (isSkipped)
DInfo.flags |= CXIdxDeclFlag_Skipped;
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleVar(const VarDecl *D) {
DeclInfo DInfo(!D->isFirstDecl(), D->isThisDeclarationADefinition(),
/*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleField(const FieldDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/false, /*isDefinition=*/true,
/*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleMSProperty(const MSPropertyDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/false, /*isDefinition=*/true,
/*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleEnumerator(const EnumConstantDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/false, /*isDefinition=*/true,
/*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleTagDecl(const TagDecl *D) {
if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(D))
return handleCXXRecordDecl(CXXRD, D);
DeclInfo DInfo(!D->isFirstDecl(), D->isThisDeclarationADefinition(),
D->isThisDeclarationADefinition());
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleTypedefName(const TypedefNameDecl *D) {
DeclInfo DInfo(!D->isFirstDecl(), /*isDefinition=*/true,
/*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleObjCInterface(const ObjCInterfaceDecl *D) {
// For @class forward declarations, suppress them the same way as references.
if (!D->isThisDeclarationADefinition()) {
if (shouldSuppressRefs() && markEntityOccurrenceInFile(D, D->getLocation()))
return false; // already occurred.
// FIXME: This seems like the wrong definition for redeclaration.
bool isRedeclaration = D->hasDefinition() || D->getPreviousDecl();
ObjCContainerDeclInfo ContDInfo(/*isForwardRef=*/true, isRedeclaration,
/*isImplementation=*/false);
return handleObjCContainer(D, D->getLocation(),
MakeCursorObjCClassRef(D, D->getLocation(),
CXTU),
ContDInfo);
}
ScratchAlloc SA(*this);
CXIdxBaseClassInfo BaseClass;
EntityInfo BaseEntity;
BaseClass.cursor = clang_getNullCursor();
if (ObjCInterfaceDecl *SuperD = D->getSuperClass()) {
getEntityInfo(SuperD, BaseEntity, SA);
SourceLocation SuperLoc = D->getSuperClassLoc();
BaseClass.base = &BaseEntity;
BaseClass.cursor = MakeCursorObjCSuperClassRef(SuperD, SuperLoc, CXTU);
BaseClass.loc = getIndexLoc(SuperLoc);
if (shouldSuppressRefs())
markEntityOccurrenceInFile(SuperD, SuperLoc);
}
ObjCProtocolList EmptyProtoList;
ObjCProtocolListInfo ProtInfo(D->isThisDeclarationADefinition()
? D->getReferencedProtocols()
: EmptyProtoList,
*this, SA);
ObjCInterfaceDeclInfo InterInfo(D);
InterInfo.ObjCProtoListInfo = ProtInfo.getListInfo();
InterInfo.ObjCInterDeclInfo.containerInfo = &InterInfo.ObjCContDeclInfo;
InterInfo.ObjCInterDeclInfo.superInfo = D->getSuperClass() ? &BaseClass
: nullptr;
InterInfo.ObjCInterDeclInfo.protocols = &InterInfo.ObjCProtoListInfo;
return handleObjCContainer(D, D->getLocation(), getCursor(D), InterInfo);
}
bool IndexingContext::handleObjCImplementation(
const ObjCImplementationDecl *D) {
ObjCContainerDeclInfo ContDInfo(/*isForwardRef=*/false,
/*isRedeclaration=*/true,
/*isImplementation=*/true);
return handleObjCContainer(D, D->getLocation(), getCursor(D), ContDInfo);
}
bool IndexingContext::handleObjCProtocol(const ObjCProtocolDecl *D) {
if (!D->isThisDeclarationADefinition()) {
if (shouldSuppressRefs() && markEntityOccurrenceInFile(D, D->getLocation()))
return false; // already occurred.
// FIXME: This seems like the wrong definition for redeclaration.
bool isRedeclaration = D->hasDefinition() || D->getPreviousDecl();
ObjCContainerDeclInfo ContDInfo(/*isForwardRef=*/true,
isRedeclaration,
/*isImplementation=*/false);
return handleObjCContainer(D, D->getLocation(),
MakeCursorObjCProtocolRef(D, D->getLocation(),
CXTU),
ContDInfo);
}
ScratchAlloc SA(*this);
ObjCProtocolList EmptyProtoList;
ObjCProtocolListInfo ProtListInfo(D->isThisDeclarationADefinition()
? D->getReferencedProtocols()
: EmptyProtoList,
*this, SA);
ObjCProtocolDeclInfo ProtInfo(D);
ProtInfo.ObjCProtoRefListInfo = ProtListInfo.getListInfo();
return handleObjCContainer(D, D->getLocation(), getCursor(D), ProtInfo);
}
bool IndexingContext::handleObjCCategory(const ObjCCategoryDecl *D) {
ScratchAlloc SA(*this);
ObjCCategoryDeclInfo CatDInfo(/*isImplementation=*/false);
EntityInfo ClassEntity;
const ObjCInterfaceDecl *IFaceD = D->getClassInterface();
SourceLocation ClassLoc = D->getLocation();
SourceLocation CategoryLoc = D->IsClassExtension() ? ClassLoc
: D->getCategoryNameLoc();
getEntityInfo(IFaceD, ClassEntity, SA);
if (shouldSuppressRefs())
markEntityOccurrenceInFile(IFaceD, ClassLoc);
ObjCProtocolListInfo ProtInfo(D->getReferencedProtocols(), *this, SA);
CatDInfo.ObjCCatDeclInfo.containerInfo = &CatDInfo.ObjCContDeclInfo;
if (IFaceD) {
CatDInfo.ObjCCatDeclInfo.objcClass = &ClassEntity;
CatDInfo.ObjCCatDeclInfo.classCursor =
MakeCursorObjCClassRef(IFaceD, ClassLoc, CXTU);
} else {
CatDInfo.ObjCCatDeclInfo.objcClass = nullptr;
CatDInfo.ObjCCatDeclInfo.classCursor = clang_getNullCursor();
}
CatDInfo.ObjCCatDeclInfo.classLoc = getIndexLoc(ClassLoc);
CatDInfo.ObjCProtoListInfo = ProtInfo.getListInfo();
CatDInfo.ObjCCatDeclInfo.protocols = &CatDInfo.ObjCProtoListInfo;
return handleObjCContainer(D, CategoryLoc, getCursor(D), CatDInfo);
}
bool IndexingContext::handleObjCCategoryImpl(const ObjCCategoryImplDecl *D) {
ScratchAlloc SA(*this);
const ObjCCategoryDecl *CatD = D->getCategoryDecl();
ObjCCategoryDeclInfo CatDInfo(/*isImplementation=*/true);
EntityInfo ClassEntity;
const ObjCInterfaceDecl *IFaceD = CatD->getClassInterface();
SourceLocation ClassLoc = D->getLocation();
SourceLocation CategoryLoc = D->getCategoryNameLoc();
getEntityInfo(IFaceD, ClassEntity, SA);
if (shouldSuppressRefs())
markEntityOccurrenceInFile(IFaceD, ClassLoc);
CatDInfo.ObjCCatDeclInfo.containerInfo = &CatDInfo.ObjCContDeclInfo;
if (IFaceD) {
CatDInfo.ObjCCatDeclInfo.objcClass = &ClassEntity;
CatDInfo.ObjCCatDeclInfo.classCursor =
MakeCursorObjCClassRef(IFaceD, ClassLoc, CXTU);
} else {
CatDInfo.ObjCCatDeclInfo.objcClass = nullptr;
CatDInfo.ObjCCatDeclInfo.classCursor = clang_getNullCursor();
}
CatDInfo.ObjCCatDeclInfo.classLoc = getIndexLoc(ClassLoc);
CatDInfo.ObjCCatDeclInfo.protocols = nullptr;
return handleObjCContainer(D, CategoryLoc, getCursor(D), CatDInfo);
}
bool IndexingContext::handleObjCMethod(const ObjCMethodDecl *D) {
bool isDef = D->isThisDeclarationADefinition();
bool isContainer = isDef;
bool isSkipped = false;
if (D->hasSkippedBody()) {
isSkipped = true;
isDef = true;
isContainer = false;
}
DeclInfo DInfo(!D->isCanonicalDecl(), isDef, isContainer);
if (isSkipped)
DInfo.flags |= CXIdxDeclFlag_Skipped;
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleSynthesizedObjCProperty(
const ObjCPropertyImplDecl *D) {
ObjCPropertyDecl *PD = D->getPropertyDecl();
return handleReference(PD, D->getLocation(), getCursor(D), nullptr,
D->getDeclContext());
}
bool IndexingContext::handleSynthesizedObjCMethod(const ObjCMethodDecl *D,
SourceLocation Loc,
const DeclContext *LexicalDC) {
DeclInfo DInfo(/*isRedeclaration=*/true, /*isDefinition=*/true,
/*isContainer=*/false);
return handleDecl(D, Loc, getCursor(D), DInfo, LexicalDC);
}
bool IndexingContext::handleObjCProperty(const ObjCPropertyDecl *D) {
ScratchAlloc SA(*this);
ObjCPropertyDeclInfo DInfo;
EntityInfo GetterEntity;
EntityInfo SetterEntity;
DInfo.ObjCPropDeclInfo.declInfo = &DInfo;
if (ObjCMethodDecl *Getter = D->getGetterMethodDecl()) {
getEntityInfo(Getter, GetterEntity, SA);
DInfo.ObjCPropDeclInfo.getter = &GetterEntity;
} else {
DInfo.ObjCPropDeclInfo.getter = nullptr;
}
if (ObjCMethodDecl *Setter = D->getSetterMethodDecl()) {
getEntityInfo(Setter, SetterEntity, SA);
DInfo.ObjCPropDeclInfo.setter = &SetterEntity;
} else {
DInfo.ObjCPropDeclInfo.setter = nullptr;
}
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleNamespace(const NamespaceDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/!D->isOriginalNamespace(),
/*isDefinition=*/true,
/*isContainer=*/true);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleClassTemplate(const ClassTemplateDecl *D) {
return handleCXXRecordDecl(D->getTemplatedDecl(), D);
}
bool IndexingContext::handleFunctionTemplate(const FunctionTemplateDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/!D->isCanonicalDecl(),
/*isDefinition=*/D->isThisDeclarationADefinition(),
/*isContainer=*/D->isThisDeclarationADefinition());
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleTypeAliasTemplate(const TypeAliasTemplateDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/!D->isCanonicalDecl(),
/*isDefinition=*/true, /*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool IndexingContext::handleReference(const NamedDecl *D, SourceLocation Loc,
const NamedDecl *Parent,
const DeclContext *DC,
const Expr *E,
CXIdxEntityRefKind Kind) {
if (!D)
return false;
CXCursor Cursor = E ? MakeCXCursor(E, cast<Decl>(DC), CXTU)
: getRefCursor(D, Loc);
return handleReference(D, Loc, Cursor, Parent, DC, E, Kind);
}
bool IndexingContext::handleReference(const NamedDecl *D, SourceLocation Loc,
CXCursor Cursor,
const NamedDecl *Parent,
const DeclContext *DC,
const Expr *E,
CXIdxEntityRefKind Kind) {
if (!CB.indexEntityReference)
return false;
if (!D)
return false;
if (Loc.isInvalid())
return false;
if (!shouldIndexFunctionLocalSymbols() && isFunctionLocalDecl(D))
return false;
if (isNotFromSourceFile(D->getLocation()))
return false;
if (D->isImplicit() && shouldIgnoreIfImplicit(D))
return false;
if (shouldSuppressRefs()) {
if (markEntityOccurrenceInFile(D, Loc))
return false; // already occurred.
}
ScratchAlloc SA(*this);
EntityInfo RefEntity, ParentEntity;
getEntityInfo(D, RefEntity, SA);
if (!RefEntity.USR)
return false;
getEntityInfo(Parent, ParentEntity, SA);
ContainerInfo Container;
getContainerInfo(DC, Container);
CXIdxEntityRefInfo Info = { Kind,
Cursor,
getIndexLoc(Loc),
&RefEntity,
Parent ? &ParentEntity : nullptr,
&Container };
CB.indexEntityReference(ClientData, &Info);
return true;
}
bool IndexingContext::isNotFromSourceFile(SourceLocation Loc) const {
if (Loc.isInvalid())
return true;
SourceManager &SM = Ctx->getSourceManager();
SourceLocation FileLoc = SM.getFileLoc(Loc);
FileID FID = SM.getFileID(FileLoc);
return SM.getFileEntryForID(FID) == nullptr;
}
void IndexingContext::addContainerInMap(const DeclContext *DC,
CXIdxClientContainer container) {
if (!DC)
return;
ContainerMapTy::iterator I = ContainerMap.find(DC);
if (I == ContainerMap.end()) {
if (container)
ContainerMap[DC] = container;
return;
}
// Allow changing the container of a previously seen DeclContext so we
// can handle invalid user code, like a function re-definition.
if (container)
I->second = container;
else
ContainerMap.erase(I);
}
CXIdxClientEntity IndexingContext::getClientEntity(const Decl *D) const {
if (!D)
return nullptr;
EntityMapTy::const_iterator I = EntityMap.find(D);
if (I == EntityMap.end())
return nullptr;
return I->second;
}
void IndexingContext::setClientEntity(const Decl *D, CXIdxClientEntity client) {
if (!D)
return;
EntityMap[D] = client;
}
bool IndexingContext::handleCXXRecordDecl(const CXXRecordDecl *RD,
const NamedDecl *OrigD) {
if (RD->isThisDeclarationADefinition()) {
ScratchAlloc SA(*this);
CXXClassDeclInfo CXXDInfo(/*isRedeclaration=*/!OrigD->isCanonicalDecl(),
/*isDefinition=*/RD->isThisDeclarationADefinition());
CXXBasesListInfo BaseList(RD, *this, SA);
CXXDInfo.CXXClassInfo.declInfo = &CXXDInfo;
CXXDInfo.CXXClassInfo.bases = BaseList.getBases();
CXXDInfo.CXXClassInfo.numBases = BaseList.getNumBases();
if (shouldSuppressRefs()) {
// Go through bases and mark them as referenced.
for (unsigned i = 0, e = BaseList.getNumBases(); i != e; ++i) {
const CXIdxBaseClassInfo *baseInfo = BaseList.getBases()[i];
if (baseInfo->base) {
const NamedDecl *BaseD = BaseList.BaseEntities[i].Dcl;
SourceLocation
Loc = SourceLocation::getFromRawEncoding(baseInfo->loc.int_data);
markEntityOccurrenceInFile(BaseD, Loc);
}
}
}
return handleDecl(OrigD, OrigD->getLocation(), getCursor(OrigD), CXXDInfo);
}
DeclInfo DInfo(/*isRedeclaration=*/!OrigD->isCanonicalDecl(),
/*isDefinition=*/RD->isThisDeclarationADefinition(),
/*isContainer=*/RD->isThisDeclarationADefinition());
return handleDecl(OrigD, OrigD->getLocation(), getCursor(OrigD), DInfo);
}
bool IndexingContext::markEntityOccurrenceInFile(const NamedDecl *D,
SourceLocation Loc) {
if (!D || Loc.isInvalid())
return true;
SourceManager &SM = Ctx->getSourceManager();
D = getEntityDecl(D);
std::pair<FileID, unsigned> LocInfo = SM.getDecomposedLoc(SM.getFileLoc(Loc));
FileID FID = LocInfo.first;
if (FID.isInvalid())
return true;
const FileEntry *FE = SM.getFileEntryForID(FID);
if (!FE)
return true;
RefFileOccurrence RefOccur(FE, D);
std::pair<llvm::DenseSet<RefFileOccurrence>::iterator, bool>
res = RefFileOccurrences.insert(RefOccur);
return !res.second; // already in map
}
const NamedDecl *IndexingContext::getEntityDecl(const NamedDecl *D) const {
assert(D);
D = cast<NamedDecl>(D->getCanonicalDecl());
if (const ObjCImplementationDecl *
ImplD = dyn_cast<ObjCImplementationDecl>(D)) {
return getEntityDecl(ImplD->getClassInterface());
} else if (const ObjCCategoryImplDecl *
CatImplD = dyn_cast<ObjCCategoryImplDecl>(D)) {
return getEntityDecl(CatImplD->getCategoryDecl());
} else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
if (FunctionTemplateDecl *TemplD = FD->getDescribedFunctionTemplate())
return getEntityDecl(TemplD);
} else if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(D)) {
if (ClassTemplateDecl *TemplD = RD->getDescribedClassTemplate())
return getEntityDecl(TemplD);
}
return D;
}
const DeclContext *
IndexingContext::getEntityContainer(const Decl *D) const {
const DeclContext *DC = dyn_cast<DeclContext>(D);
if (DC)
return DC;
if (const ClassTemplateDecl *ClassTempl = dyn_cast<ClassTemplateDecl>(D)) {
DC = ClassTempl->getTemplatedDecl();
} else if (const FunctionTemplateDecl *
FuncTempl = dyn_cast<FunctionTemplateDecl>(D)) {
DC = FuncTempl->getTemplatedDecl();
}
return DC;
}
CXIdxClientContainer
IndexingContext::getClientContainerForDC(const DeclContext *DC) const {
if (!DC)
return nullptr;
ContainerMapTy::const_iterator I = ContainerMap.find(DC);
if (I == ContainerMap.end())
return nullptr;
return I->second;
}
CXIdxClientFile IndexingContext::getIndexFile(const FileEntry *File) {
if (!File)
return nullptr;
FileMapTy::iterator FI = FileMap.find(File);
if (FI != FileMap.end())
return FI->second;
return nullptr;
}
CXIdxLoc IndexingContext::getIndexLoc(SourceLocation Loc) const {
CXIdxLoc idxLoc = { {nullptr, nullptr}, 0 };
if (Loc.isInvalid())
return idxLoc;
idxLoc.ptr_data[0] = const_cast<IndexingContext *>(this);
idxLoc.int_data = Loc.getRawEncoding();
return idxLoc;
}
void IndexingContext::translateLoc(SourceLocation Loc,
CXIdxClientFile *indexFile, CXFile *file,
unsigned *line, unsigned *column,
unsigned *offset) {
if (Loc.isInvalid())
return;
SourceManager &SM = Ctx->getSourceManager();
Loc = SM.getFileLoc(Loc);
std::pair<FileID, unsigned> LocInfo = SM.getDecomposedLoc(Loc);
FileID FID = LocInfo.first;
unsigned FileOffset = LocInfo.second;
if (FID.isInvalid())
return;
const FileEntry *FE = SM.getFileEntryForID(FID);
if (indexFile)
*indexFile = getIndexFile(FE);
if (file)
*file = const_cast<FileEntry *>(FE);
if (line)
*line = SM.getLineNumber(FID, FileOffset);
if (column)
*column = SM.getColumnNumber(FID, FileOffset);
if (offset)
*offset = FileOffset;
}
void IndexingContext::getEntityInfo(const NamedDecl *D,
EntityInfo &EntityInfo,
ScratchAlloc &SA) {
if (!D)
return;
D = getEntityDecl(D);
EntityInfo.cursor = getCursor(D);
EntityInfo.Dcl = D;
EntityInfo.IndexCtx = this;
EntityInfo.kind = CXIdxEntity_Unexposed;
EntityInfo.templateKind = CXIdxEntity_NonTemplate;
EntityInfo.lang = CXIdxEntityLang_C;
if (D->hasAttrs()) {
EntityInfo.AttrList = AttrListInfo::create(D, *this);
EntityInfo.attributes = EntityInfo.AttrList->getAttrs();
EntityInfo.numAttributes = EntityInfo.AttrList->getNumAttrs();
}
if (const TagDecl *TD = dyn_cast<TagDecl>(D)) {
switch (TD->getTagKind()) {
case TTK_Struct:
EntityInfo.kind = CXIdxEntity_Struct; break;
case TTK_Union:
EntityInfo.kind = CXIdxEntity_Union; break;
case TTK_Class:
EntityInfo.kind = CXIdxEntity_CXXClass;
EntityInfo.lang = CXIdxEntityLang_CXX;
break;
case TTK_Interface:
EntityInfo.kind = CXIdxEntity_CXXInterface;
EntityInfo.lang = CXIdxEntityLang_CXX;
break;
case TTK_Enum:
EntityInfo.kind = CXIdxEntity_Enum; break;
}
if (const CXXRecordDecl *CXXRec = dyn_cast<CXXRecordDecl>(D))
if (!CXXRec->isCLike())
EntityInfo.lang = CXIdxEntityLang_CXX;
if (isa<ClassTemplatePartialSpecializationDecl>(D)) {
EntityInfo.templateKind = CXIdxEntity_TemplatePartialSpecialization;
} else if (isa<ClassTemplateSpecializationDecl>(D)) {
EntityInfo.templateKind = CXIdxEntity_TemplateSpecialization;
}
} else {
switch (D->getKind()) {
case Decl::Typedef:
EntityInfo.kind = CXIdxEntity_Typedef; break;
case Decl::Function:
EntityInfo.kind = CXIdxEntity_Function;
break;
case Decl::ParmVar:
EntityInfo.kind = CXIdxEntity_Variable;
break;
case Decl::Var:
EntityInfo.kind = CXIdxEntity_Variable;
if (isa<CXXRecordDecl>(D->getDeclContext())) {
EntityInfo.kind = CXIdxEntity_CXXStaticVariable;
EntityInfo.lang = CXIdxEntityLang_CXX;
}
break;
case Decl::Field:
EntityInfo.kind = CXIdxEntity_Field;
if (const CXXRecordDecl *
CXXRec = dyn_cast<CXXRecordDecl>(D->getDeclContext())) {
// FIXME: isPOD check is not sufficient, a POD can contain methods,
// we want a isCStructLike check.
if (!CXXRec->isPOD())
EntityInfo.lang = CXIdxEntityLang_CXX;
}
break;
case Decl::EnumConstant:
EntityInfo.kind = CXIdxEntity_EnumConstant; break;
case Decl::ObjCInterface:
EntityInfo.kind = CXIdxEntity_ObjCClass;
EntityInfo.lang = CXIdxEntityLang_ObjC;
break;
case Decl::ObjCProtocol:
EntityInfo.kind = CXIdxEntity_ObjCProtocol;
EntityInfo.lang = CXIdxEntityLang_ObjC;
break;
case Decl::ObjCCategory:
EntityInfo.kind = CXIdxEntity_ObjCCategory;
EntityInfo.lang = CXIdxEntityLang_ObjC;
break;
case Decl::ObjCMethod:
if (cast<ObjCMethodDecl>(D)->isInstanceMethod())
EntityInfo.kind = CXIdxEntity_ObjCInstanceMethod;
else
EntityInfo.kind = CXIdxEntity_ObjCClassMethod;
EntityInfo.lang = CXIdxEntityLang_ObjC;
break;
case Decl::ObjCProperty:
EntityInfo.kind = CXIdxEntity_ObjCProperty;
EntityInfo.lang = CXIdxEntityLang_ObjC;
break;
case Decl::ObjCIvar:
EntityInfo.kind = CXIdxEntity_ObjCIvar;
EntityInfo.lang = CXIdxEntityLang_ObjC;
break;
case Decl::Namespace:
EntityInfo.kind = CXIdxEntity_CXXNamespace;
EntityInfo.lang = CXIdxEntityLang_CXX;
break;
case Decl::NamespaceAlias:
EntityInfo.kind = CXIdxEntity_CXXNamespaceAlias;
EntityInfo.lang = CXIdxEntityLang_CXX;
break;
case Decl::CXXConstructor:
EntityInfo.kind = CXIdxEntity_CXXConstructor;
EntityInfo.lang = CXIdxEntityLang_CXX;
break;
case Decl::CXXDestructor:
EntityInfo.kind = CXIdxEntity_CXXDestructor;
EntityInfo.lang = CXIdxEntityLang_CXX;
break;
case Decl::CXXConversion:
EntityInfo.kind = CXIdxEntity_CXXConversionFunction;
EntityInfo.lang = CXIdxEntityLang_CXX;
break;
case Decl::CXXMethod: {
const CXXMethodDecl *MD = cast<CXXMethodDecl>(D);
if (MD->isStatic())
EntityInfo.kind = CXIdxEntity_CXXStaticMethod;
else
EntityInfo.kind = CXIdxEntity_CXXInstanceMethod;
EntityInfo.lang = CXIdxEntityLang_CXX;
break;
}
case Decl::ClassTemplate:
EntityInfo.kind = CXIdxEntity_CXXClass;
EntityInfo.templateKind = CXIdxEntity_Template;
break;
case Decl::FunctionTemplate:
EntityInfo.kind = CXIdxEntity_Function;
EntityInfo.templateKind = CXIdxEntity_Template;
if (const CXXMethodDecl *MD = dyn_cast_or_null<CXXMethodDecl>(
cast<FunctionTemplateDecl>(D)->getTemplatedDecl())) {
if (isa<CXXConstructorDecl>(MD))
EntityInfo.kind = CXIdxEntity_CXXConstructor;
else if (isa<CXXDestructorDecl>(MD))
EntityInfo.kind = CXIdxEntity_CXXDestructor;
else if (isa<CXXConversionDecl>(MD))
EntityInfo.kind = CXIdxEntity_CXXConversionFunction;
else {
if (MD->isStatic())
EntityInfo.kind = CXIdxEntity_CXXStaticMethod;
else
EntityInfo.kind = CXIdxEntity_CXXInstanceMethod;
}
}
break;
case Decl::TypeAliasTemplate:
EntityInfo.kind = CXIdxEntity_CXXTypeAlias;
EntityInfo.templateKind = CXIdxEntity_Template;
break;
case Decl::TypeAlias:
EntityInfo.kind = CXIdxEntity_CXXTypeAlias;
EntityInfo.lang = CXIdxEntityLang_CXX;
break;
default:
break;
}
}
if (EntityInfo.kind == CXIdxEntity_Unexposed)
return;
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
if (FD->getTemplatedKind() ==
FunctionDecl::TK_FunctionTemplateSpecialization)
EntityInfo.templateKind = CXIdxEntity_TemplateSpecialization;
}
if (EntityInfo.templateKind != CXIdxEntity_NonTemplate)
EntityInfo.lang = CXIdxEntityLang_CXX;
if (IdentifierInfo *II = D->getIdentifier()) {
EntityInfo.name = SA.toCStr(II->getName());
} else if (isa<TagDecl>(D) || isa<FieldDecl>(D) || isa<NamespaceDecl>(D)) {
EntityInfo.name = nullptr; // anonymous tag/field/namespace.
} else {
SmallString<256> StrBuf;
{
llvm::raw_svector_ostream OS(StrBuf);
D->printName(OS);
}
EntityInfo.name = SA.copyCStr(StrBuf.str());
}
{
SmallString<512> StrBuf;
bool Ignore = getDeclCursorUSR(D, StrBuf);
if (Ignore) {
EntityInfo.USR = nullptr;
} else {
EntityInfo.USR = SA.copyCStr(StrBuf.str());
}
}
}
void IndexingContext::getContainerInfo(const DeclContext *DC,
ContainerInfo &ContInfo) {
ContInfo.cursor = getCursor(cast<Decl>(DC));
ContInfo.DC = DC;
ContInfo.IndexCtx = this;
}
CXCursor IndexingContext::getRefCursor(const NamedDecl *D, SourceLocation Loc) {
if (const TypeDecl *TD = dyn_cast<TypeDecl>(D))
return MakeCursorTypeRef(TD, Loc, CXTU);
if (const ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D))
return MakeCursorObjCClassRef(ID, Loc, CXTU);
if (const ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D))
return MakeCursorObjCProtocolRef(PD, Loc, CXTU);
if (const TemplateDecl *Template = dyn_cast<TemplateDecl>(D))
return MakeCursorTemplateRef(Template, Loc, CXTU);
if (const NamespaceDecl *Namespace = dyn_cast<NamespaceDecl>(D))
return MakeCursorNamespaceRef(Namespace, Loc, CXTU);
if (const NamespaceAliasDecl *Namespace = dyn_cast<NamespaceAliasDecl>(D))
return MakeCursorNamespaceRef(Namespace, Loc, CXTU);
if (const FieldDecl *Field = dyn_cast<FieldDecl>(D))
return MakeCursorMemberRef(Field, Loc, CXTU);
if (const VarDecl *Var = dyn_cast<VarDecl>(D))
return MakeCursorVariableRef(Var, Loc, CXTU);
return clang_getNullCursor();
}
bool IndexingContext::shouldIgnoreIfImplicit(const Decl *D) {
if (isa<ObjCInterfaceDecl>(D))
return false;
if (isa<ObjCCategoryDecl>(D))
return false;
if (isa<ObjCIvarDecl>(D))
return false;
if (isa<ObjCMethodDecl>(D))
return false;
if (isa<ImportDecl>(D))
return false;
return true;
}
bool IndexingContext::isTemplateImplicitInstantiation(const Decl *D) {
if (const ClassTemplateSpecializationDecl *
SD = dyn_cast<ClassTemplateSpecializationDecl>(D)) {
return SD->getSpecializationKind() == TSK_ImplicitInstantiation;
}
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
return FD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation;
}
return false;
}
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