mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-28 15:36:07 +00:00
2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
139 lines
4.2 KiB
C++
139 lines
4.2 KiB
C++
//===- ExternalASTSource.cpp - Abstract External AST Interface ------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file provides the default implementation of the ExternalASTSource
|
|
// interface, which enables construction of AST nodes from some external
|
|
// source.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "clang/AST/ExternalASTSource.h"
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/AST/DeclarationName.h"
|
|
#include "clang/Basic/IdentifierTable.h"
|
|
#include "clang/Basic/LLVM.h"
|
|
#include "clang/Basic/Module.h"
|
|
#include "llvm/ADT/None.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include <cstdint>
|
|
|
|
using namespace clang;
|
|
|
|
ExternalASTSource::~ExternalASTSource() = default;
|
|
|
|
llvm::Optional<ExternalASTSource::ASTSourceDescriptor>
|
|
ExternalASTSource::getSourceDescriptor(unsigned ID) {
|
|
return None;
|
|
}
|
|
|
|
ExternalASTSource::ExtKind
|
|
ExternalASTSource::hasExternalDefinitions(const Decl *D) {
|
|
return EK_ReplyHazy;
|
|
}
|
|
|
|
ExternalASTSource::ASTSourceDescriptor::ASTSourceDescriptor(const Module &M)
|
|
: Signature(M.Signature), ClangModule(&M) {
|
|
if (M.Directory)
|
|
Path = M.Directory->getName();
|
|
if (auto *File = M.getASTFile())
|
|
ASTFile = File->getName();
|
|
}
|
|
|
|
std::string ExternalASTSource::ASTSourceDescriptor::getModuleName() const {
|
|
if (ClangModule)
|
|
return ClangModule->Name;
|
|
else
|
|
return PCHModuleName;
|
|
}
|
|
|
|
void ExternalASTSource::FindFileRegionDecls(FileID File, unsigned Offset,
|
|
unsigned Length,
|
|
SmallVectorImpl<Decl *> &Decls) {}
|
|
|
|
void ExternalASTSource::CompleteRedeclChain(const Decl *D) {}
|
|
|
|
void ExternalASTSource::CompleteType(TagDecl *Tag) {}
|
|
|
|
void ExternalASTSource::CompleteType(ObjCInterfaceDecl *Class) {}
|
|
|
|
void ExternalASTSource::ReadComments() {}
|
|
|
|
void ExternalASTSource::StartedDeserializing() {}
|
|
|
|
void ExternalASTSource::FinishedDeserializing() {}
|
|
|
|
void ExternalASTSource::StartTranslationUnit(ASTConsumer *Consumer) {}
|
|
|
|
void ExternalASTSource::PrintStats() {}
|
|
|
|
bool ExternalASTSource::layoutRecordType(
|
|
const RecordDecl *Record, uint64_t &Size, uint64_t &Alignment,
|
|
llvm::DenseMap<const FieldDecl *, uint64_t> &FieldOffsets,
|
|
llvm::DenseMap<const CXXRecordDecl *, CharUnits> &BaseOffsets,
|
|
llvm::DenseMap<const CXXRecordDecl *, CharUnits> &VirtualBaseOffsets) {
|
|
return false;
|
|
}
|
|
|
|
Decl *ExternalASTSource::GetExternalDecl(uint32_t ID) {
|
|
return nullptr;
|
|
}
|
|
|
|
Selector ExternalASTSource::GetExternalSelector(uint32_t ID) {
|
|
return Selector();
|
|
}
|
|
|
|
uint32_t ExternalASTSource::GetNumExternalSelectors() {
|
|
return 0;
|
|
}
|
|
|
|
Stmt *ExternalASTSource::GetExternalDeclStmt(uint64_t Offset) {
|
|
return nullptr;
|
|
}
|
|
|
|
CXXCtorInitializer **
|
|
ExternalASTSource::GetExternalCXXCtorInitializers(uint64_t Offset) {
|
|
return nullptr;
|
|
}
|
|
|
|
CXXBaseSpecifier *
|
|
ExternalASTSource::GetExternalCXXBaseSpecifiers(uint64_t Offset) {
|
|
return nullptr;
|
|
}
|
|
|
|
bool
|
|
ExternalASTSource::FindExternalVisibleDeclsByName(const DeclContext *DC,
|
|
DeclarationName Name) {
|
|
return false;
|
|
}
|
|
|
|
void ExternalASTSource::completeVisibleDeclsMap(const DeclContext *DC) {}
|
|
|
|
void ExternalASTSource::FindExternalLexicalDecls(
|
|
const DeclContext *DC, llvm::function_ref<bool(Decl::Kind)> IsKindWeWant,
|
|
SmallVectorImpl<Decl *> &Result) {}
|
|
|
|
void ExternalASTSource::getMemoryBufferSizes(MemoryBufferSizes &sizes) const {}
|
|
|
|
uint32_t ExternalASTSource::incrementGeneration(ASTContext &C) {
|
|
uint32_t OldGeneration = CurrentGeneration;
|
|
|
|
// Make sure the generation of the topmost external source for the context is
|
|
// incremented. That might not be us.
|
|
auto *P = C.getExternalSource();
|
|
if (P && P != this)
|
|
CurrentGeneration = P->incrementGeneration(C);
|
|
else {
|
|
// FIXME: Only bump the generation counter if the current generation number
|
|
// has been observed?
|
|
if (!++CurrentGeneration)
|
|
llvm::report_fatal_error("generation counter overflowed", false);
|
|
}
|
|
|
|
return OldGeneration;
|
|
}
|