llvm-project/clang/tools/libclang/CXIndexDataConsumer.cpp
Matheus Izvekov 91cdd35008
[clang] Improve nested name specifier AST representation (#147835)
This is a major change on how we represent nested name qualifications in
the AST.

* The nested name specifier itself and how it's stored is changed. The
prefixes for types are handled within the type hierarchy, which makes
canonicalization for them super cheap, no memory allocation required.
Also translating a type into nested name specifier form becomes a no-op.
An identifier is stored as a DependentNameType. The nested name
specifier gains a lightweight handle class, to be used instead of
passing around pointers, which is similar to what is implemented for
TemplateName. There is still one free bit available, and this handle can
be used within a PointerUnion and PointerIntPair, which should keep
bit-packing aficionados happy.
* The ElaboratedType node is removed, all type nodes in which it could
previously apply to can now store the elaborated keyword and name
qualifier, tail allocating when present.
* TagTypes can now point to the exact declaration found when producing
these, as opposed to the previous situation of there only existing one
TagType per entity. This increases the amount of type sugar retained,
and can have several applications, for example in tracking module
ownership, and other tools which care about source file origins, such as
IWYU. These TagTypes are lazily allocated, in order to limit the
increase in AST size.

This patch offers a great performance benefit.

It greatly improves compilation time for
[stdexec](https://github.com/NVIDIA/stdexec). For one datapoint, for
`test_on2.cpp` in that project, which is the slowest compiling test,
this patch improves `-c` compilation time by about 7.2%, with the
`-fsyntax-only` improvement being at ~12%.

This has great results on compile-time-tracker as well:

![image](https://github.com/user-attachments/assets/700dce98-2cab-4aa8-97d1-b038c0bee831)

This patch also further enables other optimziations in the future, and
will reduce the performance impact of template specialization resugaring
when that lands.

It has some other miscelaneous drive-by fixes.

About the review: Yes the patch is huge, sorry about that. Part of the
reason is that I started by the nested name specifier part, before the
ElaboratedType part, but that had a huge performance downside, as
ElaboratedType is a big performance hog. I didn't have the steam to go
back and change the patch after the fact.

There is also a lot of internal API changes, and it made sense to remove
ElaboratedType in one go, versus removing it from one type at a time, as
that would present much more churn to the users. Also, the nested name
specifier having a different API avoids missing changes related to how
prefixes work now, which could make existing code compile but not work.

How to review: The important changes are all in
`clang/include/clang/AST` and `clang/lib/AST`, with also important
changes in `clang/lib/Sema/TreeTransform.h`.

The rest and bulk of the changes are mostly consequences of the changes
in API.

PS: TagType::getDecl is renamed to `getOriginalDecl` in this patch, just
for easier to rebasing. I plan to rename it back after this lands.

Fixes #136624
Fixes https://github.com/llvm/llvm-project/issues/43179
Fixes https://github.com/llvm/llvm-project/issues/68670
Fixes https://github.com/llvm/llvm-project/issues/92757
2025-08-09 05:06:53 -03:00

1309 lines
44 KiB
C++

//===- CXIndexDataConsumer.cpp - Index data consumer for libclang----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "CXIndexDataConsumer.h"
#include "CIndexDiagnostic.h"
#include "CXFile.h"
#include "CXTranslationUnit.h"
#include "clang/AST/Attr.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/DeclVisitor.h"
#include "clang/Frontend/ASTUnit.h"
#include "llvm/ADT/STLExtras.h"
using namespace clang;
using namespace clang::index;
using namespace cxindex;
using namespace cxcursor;
namespace {
class IndexingDeclVisitor : public ConstDeclVisitor<IndexingDeclVisitor, bool> {
CXIndexDataConsumer &DataConsumer;
SourceLocation DeclLoc;
const DeclContext *LexicalDC;
public:
IndexingDeclVisitor(CXIndexDataConsumer &dataConsumer, SourceLocation Loc,
const DeclContext *lexicalDC)
: DataConsumer(dataConsumer), DeclLoc(Loc), LexicalDC(lexicalDC) { }
bool VisitFunctionDecl(const FunctionDecl *D) {
DataConsumer.handleFunction(D);
return true;
}
bool VisitVarDecl(const VarDecl *D) {
DataConsumer.handleVar(D);
return true;
}
bool VisitFieldDecl(const FieldDecl *D) {
DataConsumer.handleField(D);
return true;
}
bool VisitMSPropertyDecl(const MSPropertyDecl *D) {
return true;
}
bool VisitEnumConstantDecl(const EnumConstantDecl *D) {
DataConsumer.handleEnumerator(D);
return true;
}
bool VisitTypedefNameDecl(const TypedefNameDecl *D) {
DataConsumer.handleTypedefName(D);
return true;
}
bool VisitTagDecl(const TagDecl *D) {
DataConsumer.handleTagDecl(D);
return true;
}
bool VisitObjCInterfaceDecl(const ObjCInterfaceDecl *D) {
DataConsumer.handleObjCInterface(D);
return true;
}
bool VisitObjCProtocolDecl(const ObjCProtocolDecl *D) {
DataConsumer.handleObjCProtocol(D);
return true;
}
bool VisitObjCImplementationDecl(const ObjCImplementationDecl *D) {
DataConsumer.handleObjCImplementation(D);
return true;
}
bool VisitObjCCategoryDecl(const ObjCCategoryDecl *D) {
DataConsumer.handleObjCCategory(D);
return true;
}
bool VisitObjCCategoryImplDecl(const ObjCCategoryImplDecl *D) {
DataConsumer.handleObjCCategoryImpl(D);
return true;
}
bool VisitObjCMethodDecl(const ObjCMethodDecl *D) {
if (isa<ObjCImplDecl>(LexicalDC) && !D->isThisDeclarationADefinition())
DataConsumer.handleSynthesizedObjCMethod(D, DeclLoc, LexicalDC);
else
DataConsumer.handleObjCMethod(D, DeclLoc);
return true;
}
bool VisitObjCPropertyDecl(const ObjCPropertyDecl *D) {
DataConsumer.handleObjCProperty(D);
return true;
}
bool VisitObjCPropertyImplDecl(const ObjCPropertyImplDecl *D) {
DataConsumer.handleSynthesizedObjCProperty(D);
return true;
}
bool VisitNamespaceDecl(const NamespaceDecl *D) {
DataConsumer.handleNamespace(D);
return true;
}
bool VisitUsingDecl(const UsingDecl *D) {
return true;
}
bool VisitUsingDirectiveDecl(const UsingDirectiveDecl *D) {
return true;
}
bool VisitClassTemplateDecl(const ClassTemplateDecl *D) {
DataConsumer.handleClassTemplate(D);
return true;
}
bool VisitClassTemplateSpecializationDecl(const
ClassTemplateSpecializationDecl *D) {
DataConsumer.handleTagDecl(D);
return true;
}
bool VisitFunctionTemplateDecl(const FunctionTemplateDecl *D) {
DataConsumer.handleFunctionTemplate(D);
return true;
}
bool VisitTypeAliasTemplateDecl(const TypeAliasTemplateDecl *D) {
DataConsumer.handleTypeAliasTemplate(D);
return true;
}
bool VisitImportDecl(const ImportDecl *D) {
DataConsumer.importedModule(D);
return true;
}
bool VisitConceptDecl(const ConceptDecl *D) {
DataConsumer.handleConcept(D);
return true;
}
};
CXSymbolRole getSymbolRole(SymbolRoleSet Role) {
// CXSymbolRole mirrors low 9 bits of clang::index::SymbolRole.
return CXSymbolRole(static_cast<uint32_t>(Role) & ((1 << 9) - 1));
}
}
bool CXIndexDataConsumer::handleDeclOccurrence(
const Decl *D, SymbolRoleSet Roles, ArrayRef<SymbolRelation> Relations,
SourceLocation Loc, ASTNodeInfo ASTNode) {
Loc = getASTContext().getSourceManager().getFileLoc(Loc);
if (Roles & (unsigned)SymbolRole::Reference) {
const NamedDecl *ND = dyn_cast<NamedDecl>(D);
if (!ND)
return true;
if (auto *ObjCID = dyn_cast_or_null<ObjCInterfaceDecl>(ASTNode.OrigD)) {
if (!ObjCID->isThisDeclarationADefinition() &&
ObjCID->getLocation() == Loc) {
// The libclang API treats this as ObjCClassRef declaration.
IndexingDeclVisitor(*this, Loc, nullptr).Visit(ObjCID);
return true;
}
}
if (auto *ObjCPD = dyn_cast_or_null<ObjCProtocolDecl>(ASTNode.OrigD)) {
if (!ObjCPD->isThisDeclarationADefinition() &&
ObjCPD->getLocation() == Loc) {
// The libclang API treats this as ObjCProtocolRef declaration.
IndexingDeclVisitor(*this, Loc, nullptr).Visit(ObjCPD);
return true;
}
}
CXIdxEntityRefKind Kind = CXIdxEntityRef_Direct;
if (Roles & (unsigned)SymbolRole::Implicit) {
Kind = CXIdxEntityRef_Implicit;
}
CXSymbolRole CXRole = getSymbolRole(Roles);
CXCursor Cursor;
if (ASTNode.OrigE) {
Cursor = cxcursor::MakeCXCursor(ASTNode.OrigE,
cast<Decl>(ASTNode.ContainerDC),
getCXTU());
} else {
if (ASTNode.OrigD) {
if (auto *OrigND = dyn_cast<NamedDecl>(ASTNode.OrigD))
Cursor = getRefCursor(OrigND, Loc);
else
Cursor = MakeCXCursor(ASTNode.OrigD, CXTU);
} else {
Cursor = getRefCursor(ND, Loc);
}
}
handleReference(ND, Loc, Cursor,
dyn_cast_or_null<NamedDecl>(ASTNode.Parent),
ASTNode.ContainerDC, ASTNode.OrigE, Kind, CXRole);
} else {
const DeclContext *LexicalDC = ASTNode.ContainerDC;
if (!LexicalDC) {
for (const auto &SymRel : Relations) {
if (SymRel.Roles & (unsigned)SymbolRole::RelationChildOf)
LexicalDC = dyn_cast<DeclContext>(SymRel.RelatedSymbol);
}
}
IndexingDeclVisitor(*this, Loc, LexicalDC).Visit(ASTNode.OrigD);
}
return !shouldAbort();
}
bool CXIndexDataConsumer::handleModuleOccurrence(const ImportDecl *ImportD,
const Module *Mod,
SymbolRoleSet Roles,
SourceLocation Loc) {
if (Roles & (SymbolRoleSet)SymbolRole::Declaration)
IndexingDeclVisitor(*this, SourceLocation(), nullptr).Visit(ImportD);
return !shouldAbort();
}
void CXIndexDataConsumer::finish() {
indexDiagnostics();
}
CXIndexDataConsumer::ObjCProtocolListInfo::ObjCProtocolListInfo(
const ObjCProtocolList &ProtList,
CXIndexDataConsumer &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, CXIndexDataConsumer &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().getBeginLoc();
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, CXIndexDataConsumer &IdxCtx) {
ScratchAlloc SA(IdxCtx);
AttrListInfo *attrs = SA.allocate<AttrListInfo>();
return new (attrs) AttrListInfo(D, IdxCtx);
}
CXIndexDataConsumer::CXXBasesListInfo::CXXBasesListInfo(const CXXRecordDecl *D,
CXIndexDataConsumer &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->getOriginalDecl();
}
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 CXIndexDataConsumer::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();
// FIXME: Factor this out, a lot of TypeLoc users seem to need a generic
// TypeLoc::getNameLoc()
if (auto TTL = TL.getAs<DependentNameTypeLoc>())
return TTL.getNameLoc();
if (auto TTL = TL.getAs<DependentTemplateSpecializationTypeLoc>())
return TTL.getTemplateNameLoc();
if (auto TTL = TL.getAs<TemplateSpecializationTypeLoc>())
return TTL.getTemplateNameLoc();
if (auto TTL = TL.getAs<TagTypeLoc>())
return TTL.getNameLoc();
if (auto TTL = TL.getAs<TypedefTypeLoc>())
return TTL.getNameLoc();
if (auto TTL = TL.getAs<UnresolvedUsingTypeLoc>())
return TTL.getNameLoc();
if (auto TTL = TL.getAs<UsingTypeLoc>())
return TTL.getNameLoc();
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);
llvm::uninitialized_copy(Str, buf);
buf[Str.size()] = '\0';
return buf;
}
void CXIndexDataConsumer::setASTContext(IntrusiveRefCntPtr<ASTContext> ctx) {
Ctx = ctx.get();
cxtu::getASTUnit(CXTU)->setASTContext(std::move(ctx));
}
void CXIndexDataConsumer::setPreprocessor(std::shared_ptr<Preprocessor> PP) {
cxtu::getASTUnit(CXTU)->setPreprocessor(std::move(PP));
}
bool CXIndexDataConsumer::isFunctionLocalDecl(const Decl *D) {
assert(D);
if (!D->getParentFunctionOrMethod())
return false;
if (const NamedDecl *ND = dyn_cast<NamedDecl>(D)) {
switch (ND->getFormalLinkage()) {
case Linkage::Invalid:
llvm_unreachable("Linkage hasn't been computed!");
case Linkage::None:
case Linkage::Internal:
return true;
case Linkage::VisibleNone:
case Linkage::UniqueExternal:
llvm_unreachable("Not a sema linkage");
case Linkage::Module:
case Linkage::External:
return false;
}
}
return true;
}
bool CXIndexDataConsumer::shouldAbort() {
if (!CB.abortQuery)
return false;
return CB.abortQuery(ClientData, nullptr);
}
void CXIndexDataConsumer::enteredMainFile(OptionalFileEntryRef File) {
if (File && CB.enteredMainFile) {
CXIdxClientFile idxFile =
CB.enteredMainFile(ClientData, cxfile::makeCXFile(*File), nullptr);
FileMap[*File] = idxFile;
}
}
void CXIndexDataConsumer::ppIncludedFile(SourceLocation hashLoc,
StringRef filename,
OptionalFileEntryRef File,
bool isImport, bool isAngled,
bool isModuleImport) {
if (!CB.ppIncludedFile)
return;
const FileEntry *FE = File ? &File->getFileEntry() : nullptr;
ScratchAlloc SA(*this);
CXIdxIncludedFileInfo Info = { getIndexLoc(hashLoc),
SA.toCStr(filename),
cxfile::makeCXFile(File),
isImport, isAngled, isModuleImport };
CXIdxClientFile idxFile = CB.ppIncludedFile(ClientData, &Info);
FileMap[FE] = idxFile;
}
void CXIndexDataConsumer::importedModule(const ImportDecl *ImportD) {
if (!CB.importedASTFile)
return;
Module *Mod = ImportD->getImportedModule();
if (!Mod)
return;
// If the imported module is part of the top-level module that we're
// indexing, it doesn't correspond to an imported AST file.
// FIXME: This assumes that AST files and top-level modules directly
// correspond, which is unlikely to remain true forever.
if (Module *SrcMod = ImportD->getImportedOwningModule())
if (SrcMod->getTopLevelModule() == Mod->getTopLevelModule())
return;
OptionalFileEntryRef FE = Mod->getASTFile();
CXIdxImportedASTFileInfo Info = {cxfile::makeCXFile(FE), Mod,
getIndexLoc(ImportD->getLocation()),
ImportD->isImplicit()};
CXIdxClientASTFile astFile = CB.importedASTFile(ClientData, &Info);
(void)astFile;
}
void CXIndexDataConsumer::importedPCH(FileEntryRef File) {
if (!CB.importedASTFile)
return;
CXIdxImportedASTFileInfo Info = {
cxfile::makeCXFile(File),
/*module=*/nullptr,
getIndexLoc(SourceLocation()),
/*isImplicit=*/false
};
CXIdxClientASTFile astFile = CB.importedASTFile(ClientData, &Info);
(void)astFile;
}
void CXIndexDataConsumer::startedTranslationUnit() {
CXIdxClientContainer idxCont = nullptr;
if (CB.startedTranslationUnit)
idxCont = CB.startedTranslationUnit(ClientData, nullptr);
addContainerInMap(Ctx->getTranslationUnitDecl(), idxCont);
}
void CXIndexDataConsumer::indexDiagnostics() {
if (!hasDiagnosticCallback())
return;
CXDiagnosticSetImpl *DiagSet = cxdiag::lazyCreateDiags(getCXTU());
handleDiagnosticSet(DiagSet);
}
void CXIndexDataConsumer::handleDiagnosticSet(CXDiagnostic CXDiagSet) {
if (!CB.diagnostic)
return;
CB.diagnostic(ClientData, CXDiagSet, nullptr);
}
bool CXIndexDataConsumer::handleDecl(const NamedDecl *D,
SourceLocation Loc, CXCursor Cursor,
DeclInfo &DInfo,
const DeclContext *LexicalDC,
const DeclContext *SemaDC) {
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;
if (!SemaDC)
SemaDC = D->getDeclContext();
getContainerInfo(SemaDC, DInfo.SemanticContainer);
DInfo.semanticContainer = &DInfo.SemanticContainer;
if (LexicalDC == SemaDC) {
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 CXIndexDataConsumer::handleObjCContainer(const ObjCContainerDecl *D,
SourceLocation Loc, CXCursor Cursor,
ObjCContainerDeclInfo &ContDInfo) {
ContDInfo.ObjCContDeclInfo.declInfo = &ContDInfo;
return handleDecl(D, Loc, Cursor, ContDInfo);
}
bool CXIndexDataConsumer::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 CXIndexDataConsumer::handleVar(const VarDecl *D) {
DeclInfo DInfo(!D->isFirstDecl(), D->isThisDeclarationADefinition(),
/*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool CXIndexDataConsumer::handleField(const FieldDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/false, /*isDefinition=*/true,
/*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool CXIndexDataConsumer::handleEnumerator(const EnumConstantDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/false, /*isDefinition=*/true,
/*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool CXIndexDataConsumer::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 CXIndexDataConsumer::handleTypedefName(const TypedefNameDecl *D) {
DeclInfo DInfo(!D->isFirstDecl(), /*isDefinition=*/true,
/*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool CXIndexDataConsumer::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 CXIndexDataConsumer::handleObjCImplementation(
const ObjCImplementationDecl *D) {
ObjCContainerDeclInfo ContDInfo(/*isForwardRef=*/false,
/*isRedeclaration=*/true,
/*isImplementation=*/true);
return handleObjCContainer(D, D->getLocation(), getCursor(D), ContDInfo);
}
bool CXIndexDataConsumer::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 CXIndexDataConsumer::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 CXIndexDataConsumer::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 CXIndexDataConsumer::handleObjCMethod(const ObjCMethodDecl *D,
SourceLocation Loc) {
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, Loc, getCursor(D), DInfo);
}
bool CXIndexDataConsumer::handleSynthesizedObjCProperty(
const ObjCPropertyImplDecl *D) {
ObjCPropertyDecl *PD = D->getPropertyDecl();
auto *DC = D->getDeclContext();
return handleReference(PD, D->getLocation(), getCursor(D),
dyn_cast<NamedDecl>(DC), DC);
}
bool CXIndexDataConsumer::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, D->getDeclContext());
}
bool CXIndexDataConsumer::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 CXIndexDataConsumer::handleNamespace(const NamespaceDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/!D->isFirstDecl(),
/*isDefinition=*/true,
/*isContainer=*/true);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool CXIndexDataConsumer::handleClassTemplate(const ClassTemplateDecl *D) {
return handleCXXRecordDecl(D->getTemplatedDecl(), D);
}
bool CXIndexDataConsumer::handleFunctionTemplate(const FunctionTemplateDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/!D->isCanonicalDecl(),
/*isDefinition=*/D->isThisDeclarationADefinition(),
/*isContainer=*/D->isThisDeclarationADefinition());
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool CXIndexDataConsumer::handleTypeAliasTemplate(const TypeAliasTemplateDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/!D->isCanonicalDecl(),
/*isDefinition=*/true, /*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool CXIndexDataConsumer::handleConcept(const ConceptDecl *D) {
DeclInfo DInfo(/*isRedeclaration=*/!D->isCanonicalDecl(),
/*isDefinition=*/true, /*isContainer=*/false);
return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
}
bool CXIndexDataConsumer::handleReference(const NamedDecl *D, SourceLocation Loc,
CXCursor Cursor,
const NamedDecl *Parent,
const DeclContext *DC,
const Expr *E,
CXIdxEntityRefKind Kind,
CXSymbolRole Role) {
if (!CB.indexEntityReference)
return false;
if (!D || !DC)
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,
Role };
CB.indexEntityReference(ClientData, &Info);
return true;
}
bool CXIndexDataConsumer::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 CXIndexDataConsumer::addContainerInMap(const DeclContext *DC,
CXIdxClientContainer container) {
if (!DC)
return;
// Allow changing the container of a previously seen DeclContext so we
// can handle invalid user code, like a function re-definition.
if (container)
ContainerMap[DC] = container;
else
ContainerMap.erase(DC);
}
CXIdxClientEntity CXIndexDataConsumer::getClientEntity(const Decl *D) const {
return D ? EntityMap.lookup(D) : nullptr;
}
void CXIndexDataConsumer::setClientEntity(const Decl *D, CXIdxClientEntity client) {
if (!D)
return;
EntityMap[D] = client;
}
bool CXIndexDataConsumer::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 CXIndexDataConsumer::markEntityOccurrenceInFile(const NamedDecl *D,
SourceLocation Loc) {
if (!D || Loc.isInvalid())
return true;
SourceManager &SM = Ctx->getSourceManager();
D = getEntityDecl(D);
FileIDAndOffset 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 *CXIndexDataConsumer::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 *
CXIndexDataConsumer::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
CXIndexDataConsumer::getClientContainerForDC(const DeclContext *DC) const {
return DC ? ContainerMap.lookup(DC) : nullptr;
}
CXIdxClientFile CXIndexDataConsumer::getIndexFile(OptionalFileEntryRef File) {
return File ? FileMap.lookup(*File) : nullptr;
}
CXIdxLoc CXIndexDataConsumer::getIndexLoc(SourceLocation Loc) const {
CXIdxLoc idxLoc = { {nullptr, nullptr}, 0 };
if (Loc.isInvalid())
return idxLoc;
idxLoc.ptr_data[0] = const_cast<CXIndexDataConsumer *>(this);
idxLoc.int_data = Loc.getRawEncoding();
return idxLoc;
}
void CXIndexDataConsumer::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);
FileIDAndOffset LocInfo = SM.getDecomposedLoc(Loc);
FileID FID = LocInfo.first;
unsigned FileOffset = LocInfo.second;
if (FID.isInvalid())
return;
OptionalFileEntryRef FE = SM.getFileEntryRefForID(FID);
if (indexFile)
*indexFile = getIndexFile(FE);
if (file)
*file = cxfile::makeCXFile(FE);
if (line)
*line = SM.getLineNumber(FID, FileOffset);
if (column)
*column = SM.getColumnNumber(FID, FileOffset);
if (offset)
*offset = FileOffset;
}
static CXIdxEntityKind getEntityKindFromSymbolKind(SymbolKind K, SymbolLanguage L);
static CXIdxEntityCXXTemplateKind
getEntityKindFromSymbolProperties(SymbolPropertySet K);
static CXIdxEntityLanguage getEntityLangFromSymbolLang(SymbolLanguage L);
void CXIndexDataConsumer::getEntityInfo(const NamedDecl *D,
EntityInfo &EntityInfo,
ScratchAlloc &SA) {
if (!D)
return;
D = getEntityDecl(D);
EntityInfo.cursor = getCursor(D);
EntityInfo.Dcl = D;
EntityInfo.IndexCtx = this;
SymbolInfo SymInfo = getSymbolInfo(D);
EntityInfo.kind = getEntityKindFromSymbolKind(SymInfo.Kind, SymInfo.Lang);
EntityInfo.templateKind = getEntityKindFromSymbolProperties(SymInfo.Properties);
EntityInfo.lang = getEntityLangFromSymbolLang(SymInfo.Lang);
if (D->hasAttrs()) {
EntityInfo.AttrList = AttrListInfo::create(D, *this);
EntityInfo.attributes = EntityInfo.AttrList->getAttrs();
EntityInfo.numAttributes = EntityInfo.AttrList->getNumAttrs();
}
if (EntityInfo.kind == CXIdxEntity_Unexposed)
return;
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 CXIndexDataConsumer::getContainerInfo(const DeclContext *DC,
ContainerInfo &ContInfo) {
ContInfo.cursor = getCursor(cast<Decl>(DC));
ContInfo.DC = DC;
ContInfo.IndexCtx = this;
}
CXCursor CXIndexDataConsumer::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 CXIndexDataConsumer::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 CXIndexDataConsumer::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;
}
static CXIdxEntityKind getEntityKindFromSymbolKind(SymbolKind K, SymbolLanguage Lang) {
switch (K) {
case SymbolKind::Unknown:
case SymbolKind::Module:
case SymbolKind::Macro:
case SymbolKind::ClassProperty:
case SymbolKind::Using:
case SymbolKind::TemplateTypeParm:
case SymbolKind::TemplateTemplateParm:
case SymbolKind::NonTypeTemplateParm:
return CXIdxEntity_Unexposed;
case SymbolKind::Enum: return CXIdxEntity_Enum;
case SymbolKind::Struct: return CXIdxEntity_Struct;
case SymbolKind::Union: return CXIdxEntity_Union;
case SymbolKind::TypeAlias:
if (Lang == SymbolLanguage::CXX)
return CXIdxEntity_CXXTypeAlias;
return CXIdxEntity_Typedef;
case SymbolKind::Function: return CXIdxEntity_Function;
case SymbolKind::Variable: return CXIdxEntity_Variable;
case SymbolKind::Field:
if (Lang == SymbolLanguage::ObjC)
return CXIdxEntity_ObjCIvar;
return CXIdxEntity_Field;
case SymbolKind::EnumConstant: return CXIdxEntity_EnumConstant;
case SymbolKind::Class:
if (Lang == SymbolLanguage::ObjC)
return CXIdxEntity_ObjCClass;
return CXIdxEntity_CXXClass;
case SymbolKind::Protocol:
if (Lang == SymbolLanguage::ObjC)
return CXIdxEntity_ObjCProtocol;
return CXIdxEntity_CXXInterface;
case SymbolKind::Extension: return CXIdxEntity_ObjCCategory;
case SymbolKind::InstanceMethod:
if (Lang == SymbolLanguage::ObjC)
return CXIdxEntity_ObjCInstanceMethod;
return CXIdxEntity_CXXInstanceMethod;
case SymbolKind::ClassMethod: return CXIdxEntity_ObjCClassMethod;
case SymbolKind::StaticMethod: return CXIdxEntity_CXXStaticMethod;
case SymbolKind::InstanceProperty: return CXIdxEntity_ObjCProperty;
case SymbolKind::StaticProperty: return CXIdxEntity_CXXStaticVariable;
case SymbolKind::Namespace: return CXIdxEntity_CXXNamespace;
case SymbolKind::NamespaceAlias: return CXIdxEntity_CXXNamespaceAlias;
case SymbolKind::Constructor: return CXIdxEntity_CXXConstructor;
case SymbolKind::Destructor: return CXIdxEntity_CXXDestructor;
case SymbolKind::ConversionFunction: return CXIdxEntity_CXXConversionFunction;
case SymbolKind::Parameter: return CXIdxEntity_Variable;
case SymbolKind::Concept:
return CXIdxEntity_CXXConcept;
}
llvm_unreachable("invalid symbol kind");
}
static CXIdxEntityCXXTemplateKind
getEntityKindFromSymbolProperties(SymbolPropertySet K) {
if (K & (SymbolPropertySet)SymbolProperty::TemplatePartialSpecialization)
return CXIdxEntity_TemplatePartialSpecialization;
if (K & (SymbolPropertySet)SymbolProperty::TemplateSpecialization)
return CXIdxEntity_TemplateSpecialization;
if (K & (SymbolPropertySet)SymbolProperty::Generic)
return CXIdxEntity_Template;
return CXIdxEntity_NonTemplate;
}
static CXIdxEntityLanguage getEntityLangFromSymbolLang(SymbolLanguage L) {
switch (L) {
case SymbolLanguage::C: return CXIdxEntityLang_C;
case SymbolLanguage::ObjC: return CXIdxEntityLang_ObjC;
case SymbolLanguage::CXX: return CXIdxEntityLang_CXX;
case SymbolLanguage::Swift: return CXIdxEntityLang_Swift;
}
llvm_unreachable("invalid symbol language");
}