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//===- unittests/Serialization/ForceCheckFileInputTest.cpp - CI tests -----===//
//
// 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/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/Basic/FileManager.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/Frontend/Utils.h"
#include "clang/Lex/HeaderSearch.h"
#include "clang/Lex/PreprocessorOptions.h"
#include "clang/Serialization/ASTReader.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
using namespace llvm;
using namespace clang;
namespace {
class ForceCheckFileInputTest : public ::testing::Test {
void SetUp() override {
EXPECT_FALSE(sys::fs::createUniqueDirectory("modules-test", TestDir));
}
void TearDown() override { sys::fs::remove_directories(TestDir); }
public:
SmallString<256> TestDir;
void addFile(StringRef Path, StringRef Contents) {
EXPECT_FALSE(sys::path::is_absolute(Path));
SmallString<256> AbsPath(TestDir);
sys::path::append(AbsPath, Path);
EXPECT_FALSE(
sys::fs::create_directories(llvm::sys::path::parent_path(AbsPath)));
std::error_code EC;
llvm::raw_fd_ostream OS(AbsPath, EC);
EXPECT_FALSE(EC);
OS << Contents;
}
};
TEST_F(ForceCheckFileInputTest, ForceCheck) {
addFile("a.cppm", R"cpp(
export module a;
export int aa = 43;
)cpp");
std::string BMIPath = llvm::Twine(TestDir + "/a.pcm").str();
{
CreateInvocationOptions CIOpts;
CIOpts.VFS = llvm::vfs::createPhysicalFileSystem();
DiagnosticOptions DiagOpts;
IntrusiveRefCntPtr<DiagnosticsEngine> Diags =
CompilerInstance::createDiagnostics(*CIOpts.VFS, DiagOpts);
CIOpts.Diags = Diags;
const char *Args[] = {"clang++", "-std=c++20",
"--precompile", "-working-directory",
TestDir.c_str(), "a.cppm"};
std::shared_ptr<CompilerInvocation> Invocation =
createInvocation(Args, CIOpts);
EXPECT_TRUE(Invocation);
Invocation->getFrontendOpts().DisableFree = false;
auto Buf = CIOpts.VFS->getBufferForFile("a.cppm");
EXPECT_TRUE(Buf);
Invocation->getPreprocessorOpts().addRemappedFile("a.cppm", Buf->get());
Buf->release();
CompilerInstance Instance(std::move(Invocation));
Instance.setDiagnostics(Diags.get());
Instance.getFrontendOpts().OutputFile = BMIPath;
if (auto VFSWithRemapping = createVFSFromCompilerInvocation(
Instance.getInvocation(), Instance.getDiagnostics(), CIOpts.VFS))
CIOpts.VFS = VFSWithRemapping;
Instance.createFileManager(CIOpts.VFS);
Instance.getHeaderSearchOpts().ValidateASTInputFilesContent = true;
GenerateReducedModuleInterfaceAction Action;
EXPECT_TRUE(Instance.ExecuteAction(Action));
EXPECT_FALSE(Diags->hasErrorOccurred());
}
{
CreateInvocationOptions CIOpts;
CIOpts.VFS = llvm::vfs::createPhysicalFileSystem();
DiagnosticOptions DiagOpts;
IntrusiveRefCntPtr<DiagnosticsEngine> Diags =
CompilerInstance::createDiagnostics(*CIOpts.VFS, DiagOpts);
CIOpts.Diags = Diags;
std::string BMIPath = llvm::Twine(TestDir + "/a.pcm").str();
const char *Args[] = {
"clang++", "-std=c++20", "--precompile", "-working-directory",
TestDir.c_str(), "a.cppm", "-o", BMIPath.c_str()};
std::shared_ptr<CompilerInvocation> Invocation =
createInvocation(Args, CIOpts);
EXPECT_TRUE(Invocation);
Invocation->getFrontendOpts().DisableFree = false;
CompilerInstance Clang(std::move(Invocation));
Clang.setDiagnostics(Diags.get());
FileManager *FM = Clang.createFileManager(CIOpts.VFS);
Clang.createSourceManager(*FM);
EXPECT_TRUE(Clang.createTarget());
Clang.createPreprocessor(TU_Complete);
Clang.getHeaderSearchOpts().ForceCheckCXX20ModulesInputFiles = true;
Clang.getHeaderSearchOpts().ValidateASTInputFilesContent = true;
Clang.createASTReader();
addFile("a.cppm", R"cpp(
export module a;
export int aa = 44;
)cpp");
auto ReadResult =
Clang.getASTReader()->ReadAST(BMIPath, serialization::MK_MainFile,
SourceLocation(), ASTReader::ARR_None);
// We shall be able to detect the content change here.
EXPECT_NE(ReadResult, ASTReader::Success);
}
}
} // anonymous namespace
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