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//===- unittests/Frontend/UtilsTest.cpp -----------------------------------===//
//
// 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/Frontend/Utils.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/TargetOptions.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Lex/PreprocessorOptions.h"
#include "llvm/ADT/IntrusiveRefCntPtr.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace clang {
namespace {
using testing::ElementsAre;
TEST(BuildCompilerInvocationTest, RecoverMultipleJobs) {
// This generates multiple jobs and we recover by using the first.
std::vector<const char *> Args = {"clang", "--target=macho", "-arch", "i386",
"-arch", "x86_64", "foo.cpp"};
clang::IgnoringDiagConsumer D;
clang::DiagnosticOptions DiagOpts;
CreateInvocationOptions Opts;
Opts.RecoverOnError = true;
Opts.VFS = new llvm::vfs::InMemoryFileSystem();
Opts.Diags = clang::CompilerInstance::createDiagnostics(*Opts.VFS, DiagOpts,
&D, false);
std::unique_ptr<CompilerInvocation> CI = createInvocation(Args, Opts);
ASSERT_TRUE(CI);
EXPECT_THAT(CI->getTargetOpts().Triple, testing::StartsWith("i386-"));
}
// buildInvocationFromCommandLine should not translate -include to -include-pch,
// even if the PCH file exists.
TEST(BuildCompilerInvocationTest, ProbePrecompiled) {
std::vector<const char *> Args = {"clang", "-include", "foo.h", "foo.cpp"};
auto FS = llvm::makeIntrusiveRefCnt<llvm::vfs::InMemoryFileSystem>();
FS->addFile("foo.h", 0, llvm::MemoryBuffer::getMemBuffer(""));
FS->addFile("foo.h.pch", 0, llvm::MemoryBuffer::getMemBuffer(""));
clang::IgnoringDiagConsumer D;
clang::DiagnosticOptions DiagOpts;
llvm::IntrusiveRefCntPtr<DiagnosticsEngine> CommandLineDiagsEngine =
clang::CompilerInstance::createDiagnostics(*FS, DiagOpts, &D, false);
// Default: ProbePrecompiled=false
CreateInvocationOptions CIOpts;
CIOpts.Diags = CommandLineDiagsEngine;
CIOpts.VFS = FS;
std::unique_ptr<CompilerInvocation> CI = createInvocation(Args, CIOpts);
ASSERT_TRUE(CI);
EXPECT_THAT(CI->getPreprocessorOpts().Includes, ElementsAre("foo.h"));
EXPECT_EQ(CI->getPreprocessorOpts().ImplicitPCHInclude, "");
CIOpts.ProbePrecompiled = true;
CI = createInvocation(Args, CIOpts);
ASSERT_TRUE(CI);
EXPECT_THAT(CI->getPreprocessorOpts().Includes, ElementsAre());
EXPECT_EQ(CI->getPreprocessorOpts().ImplicitPCHInclude, "foo.h.pch");
}
} // namespace
} // namespace clang
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