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//===-- SymbolCollectorTests.cpp -------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "index/SymbolCollector.h"
#include "index/SymbolYAML.h"
#include "clang/Index/IndexingAction.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/FileSystemOptions.h"
#include "clang/Basic/VirtualFileSystem.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Index/IndexingAction.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/ADT/IntrusiveRefCntPtr.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/MemoryBuffer.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <memory>
#include <string>
using testing::Eq;
using testing::Field;
using testing::UnorderedElementsAre;
// GMock helpers for matching Symbol.
MATCHER_P(QName, Name, "") {
return (arg.Scope + (arg.Scope.empty() ? "" : "::") + arg.Name).str() == Name;
}
namespace clang {
namespace clangd {
namespace {
class SymbolIndexActionFactory : public tooling::FrontendActionFactory {
public:
SymbolIndexActionFactory() = default;
clang::FrontendAction *create() override {
index::IndexingOptions IndexOpts;
IndexOpts.SystemSymbolFilter =
index::IndexingOptions::SystemSymbolFilterKind::All;
IndexOpts.IndexFunctionLocals = false;
Collector = std::make_shared<SymbolCollector>();
FrontendAction *Action =
index::createIndexingAction(Collector, IndexOpts, nullptr).release();
return Action;
}
std::shared_ptr<SymbolCollector> Collector;
};
class SymbolCollectorTest : public ::testing::Test {
public:
bool runSymbolCollector(StringRef HeaderCode, StringRef MainCode) {
llvm::IntrusiveRefCntPtr<vfs::InMemoryFileSystem> InMemoryFileSystem(
new vfs::InMemoryFileSystem);
llvm::IntrusiveRefCntPtr<FileManager> Files(
new FileManager(FileSystemOptions(), InMemoryFileSystem));
const std::string FileName = "symbol.cc";
const std::string HeaderName = "symbols.h";
auto Factory = llvm::make_unique<SymbolIndexActionFactory>();
tooling::ToolInvocation Invocation(
{"symbol_collector", "-fsyntax-only", "-std=c++11", FileName},
Factory->create(), Files.get(),
std::make_shared<PCHContainerOperations>());
InMemoryFileSystem->addFile(HeaderName, 0,
llvm::MemoryBuffer::getMemBuffer(HeaderCode));
std::string Content = "#include\"" + std::string(HeaderName) + "\"";
Content += "\n" + MainCode.str();
InMemoryFileSystem->addFile(FileName, 0,
llvm::MemoryBuffer::getMemBuffer(Content));
Invocation.run();
Symbols = Factory->Collector->takeSymbols();
return true;
}
protected:
SymbolSlab Symbols;
};
TEST_F(SymbolCollectorTest, CollectSymbol) {
const std::string Header = R"(
class Foo {
void f();
};
void f1();
inline void f2() {}
)";
const std::string Main = R"(
namespace {
void ff() {} // ignore
}
void f1() {}
)";
runSymbolCollector(Header, Main);
EXPECT_THAT(Symbols, UnorderedElementsAre(QName("Foo"), QName("Foo::f"),
QName("f1"), QName("f2")));
}
TEST_F(SymbolCollectorTest, YAMLConversions) {
const std::string YAML1 = R"(
---
ID: 057557CEBF6E6B2DD437FBF60CC58F352D1DF856
Name: 'Foo1'
Scope: 'clang'
SymInfo:
Kind: Function
Lang: Cpp
CanonicalDeclaration:
StartOffset: 0
EndOffset: 1
FilePath: /path/foo.h
...
)";
const std::string YAML2 = R"(
---
ID: 057557CEBF6E6B2DD437FBF60CC58F352D1DF858
Name: 'Foo2'
Scope: 'clang'
SymInfo:
Kind: Function
Lang: Cpp
CanonicalDeclaration:
StartOffset: 10
EndOffset: 12
FilePath: /path/foo.h
...
)";
auto Symbols1 = SymbolFromYAML(YAML1);
EXPECT_THAT(Symbols1,
UnorderedElementsAre(QName("clang::Foo1")));
auto Symbols2 = SymbolFromYAML(YAML2);
EXPECT_THAT(Symbols2,
UnorderedElementsAre(QName("clang::Foo2")));
std::string ConcatenatedYAML =
SymbolToYAML(Symbols1) + SymbolToYAML(Symbols2);
auto ConcatenatedSymbols = SymbolFromYAML(ConcatenatedYAML);
EXPECT_THAT(ConcatenatedSymbols,
UnorderedElementsAre(QName("clang::Foo1"),
QName("clang::Foo2")));
}
} // namespace
} // namespace clangd
} // namespace clang
|
