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//===--- IndexTests.cpp - Test indexing actions -----------------*- C++ -*-===//
//
// 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 "clang/AST/ASTConsumer.h"
#include "clang/AST/Decl.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/FrontendAction.h"
#include "clang/Index/IndexDataConsumer.h"
#include "clang/Index/IndexSymbol.h"
#include "clang/Index/IndexingAction.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <memory>
namespace clang {
namespace index {
struct TestSymbol {
std::string QName;
// FIXME: add more information.
};
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const TestSymbol &S) {
return OS << S.QName;
}
namespace {
class Indexer : public IndexDataConsumer {
public:
bool handleDeclOccurence(const Decl *D, SymbolRoleSet Roles,
ArrayRef<SymbolRelation>, SourceLocation,
ASTNodeInfo) override {
const auto *ND = llvm::dyn_cast<NamedDecl>(D);
if (!ND)
return true;
TestSymbol S;
S.QName = ND->getQualifiedNameAsString();
Symbols.push_back(std::move(S));
return true;
}
bool handleMacroOccurence(const IdentifierInfo *Name, const MacroInfo *,
SymbolRoleSet, SourceLocation) override {
TestSymbol S;
S.QName = Name->getName();
Symbols.push_back(std::move(S));
return true;
}
std::vector<TestSymbol> Symbols;
};
class IndexAction : public ASTFrontendAction {
public:
IndexAction(std::shared_ptr<Indexer> Index,
IndexingOptions Opts = IndexingOptions())
: Index(std::move(Index)), Opts(Opts) {}
protected:
std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI,
StringRef InFile) override {
class Consumer : public ASTConsumer {
std::shared_ptr<Indexer> Index;
std::shared_ptr<Preprocessor> PP;
IndexingOptions Opts;
public:
Consumer(std::shared_ptr<Indexer> Index, std::shared_ptr<Preprocessor> PP,
IndexingOptions Opts)
: Index(std::move(Index)), PP(std::move(PP)), Opts(Opts) {}
void HandleTranslationUnit(ASTContext &Ctx) override {
std::vector<Decl *> DeclsToIndex(
Ctx.getTranslationUnitDecl()->decls().begin(),
Ctx.getTranslationUnitDecl()->decls().end());
indexTopLevelDecls(Ctx, *PP, DeclsToIndex, *Index, Opts);
}
};
return llvm::make_unique<Consumer>(Index, CI.getPreprocessorPtr(), Opts);
}
private:
std::shared_ptr<Indexer> Index;
IndexingOptions Opts;
};
using testing::Contains;
using testing::Not;
using testing::UnorderedElementsAre;
MATCHER_P(QName, Name, "") { return arg.QName == Name; }
TEST(IndexTest, Simple) {
auto Index = std::make_shared<Indexer>();
tooling::runToolOnCode(new IndexAction(Index), "class X {}; void f() {}");
EXPECT_THAT(Index->Symbols, UnorderedElementsAre(QName("X"), QName("f")));
}
TEST(IndexTest, IndexPreprocessorMacros) {
std::string Code = "#define INDEX_MAC 1";
auto Index = std::make_shared<Indexer>();
IndexingOptions Opts;
Opts.IndexMacrosInPreprocessor = true;
tooling::runToolOnCode(new IndexAction(Index, Opts), Code);
EXPECT_THAT(Index->Symbols, Contains(QName("INDEX_MAC")));
Opts.IndexMacrosInPreprocessor = false;
Index->Symbols.clear();
tooling::runToolOnCode(new IndexAction(Index, Opts), Code);
EXPECT_THAT(Index->Symbols, UnorderedElementsAre());
}
} // namespace
} // namespace index
} // namespace clang
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