104 lines
3.9 KiB
C++
104 lines
3.9 KiB
C++
//===- unittests/Frontend/OutputStreamTest.cpp --- FrontendAction tests --===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Basic/LangStandard.h"
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#include "clang/CodeGen/BackendUtil.h"
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#include "clang/CodeGen/CodeGenAction.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/TextDiagnosticPrinter.h"
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#include "clang/FrontendTool/Utils.h"
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#include "clang/Lex/PreprocessorOptions.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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using namespace clang;
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using namespace clang::frontend;
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namespace {
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TEST(FrontendOutputTests, TestOutputStream) {
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auto Invocation = std::make_shared<CompilerInvocation>();
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Invocation->getPreprocessorOpts().addRemappedFile(
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"test.cc", MemoryBuffer::getMemBuffer("").release());
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Invocation->getFrontendOpts().Inputs.push_back(
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FrontendInputFile("test.cc", Language::CXX));
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Invocation->getFrontendOpts().ProgramAction = EmitBC;
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Invocation->getTargetOpts().Triple = "i386-unknown-linux-gnu";
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CompilerInstance Compiler;
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SmallVector<char, 256> IRBuffer;
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std::unique_ptr<raw_pwrite_stream> IRStream(
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new raw_svector_ostream(IRBuffer));
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Compiler.setOutputStream(std::move(IRStream));
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Compiler.setInvocation(std::move(Invocation));
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Compiler.createDiagnostics();
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bool Success = ExecuteCompilerInvocation(&Compiler);
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EXPECT_TRUE(Success);
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EXPECT_TRUE(!IRBuffer.empty());
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EXPECT_TRUE(StringRef(IRBuffer.data()).startswith("BC"));
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}
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TEST(FrontendOutputTests, TestVerboseOutputStreamShared) {
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auto Invocation = std::make_shared<CompilerInvocation>();
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Invocation->getPreprocessorOpts().addRemappedFile(
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"test.cc", MemoryBuffer::getMemBuffer("invalid").release());
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Invocation->getFrontendOpts().Inputs.push_back(
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FrontendInputFile("test.cc", Language::CXX));
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Invocation->getFrontendOpts().ProgramAction = EmitBC;
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Invocation->getTargetOpts().Triple = "i386-unknown-linux-gnu";
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CompilerInstance Compiler;
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std::string VerboseBuffer;
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raw_string_ostream VerboseStream(VerboseBuffer);
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Compiler.setOutputStream(std::make_unique<raw_null_ostream>());
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Compiler.setInvocation(std::move(Invocation));
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IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
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Compiler.createDiagnostics(
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new TextDiagnosticPrinter(llvm::nulls(), &*DiagOpts), true);
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Compiler.setVerboseOutputStream(VerboseStream);
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bool Success = ExecuteCompilerInvocation(&Compiler);
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EXPECT_FALSE(Success);
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EXPECT_TRUE(!VerboseStream.str().empty());
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EXPECT_TRUE(StringRef(VerboseBuffer.data()).contains("errors generated"));
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}
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TEST(FrontendOutputTests, TestVerboseOutputStreamOwned) {
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std::string VerboseBuffer;
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bool Success;
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{
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auto Invocation = std::make_shared<CompilerInvocation>();
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Invocation->getPreprocessorOpts().addRemappedFile(
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"test.cc", MemoryBuffer::getMemBuffer("invalid").release());
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Invocation->getFrontendOpts().Inputs.push_back(
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FrontendInputFile("test.cc", Language::CXX));
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Invocation->getFrontendOpts().ProgramAction = EmitBC;
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Invocation->getTargetOpts().Triple = "i386-unknown-linux-gnu";
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CompilerInstance Compiler;
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std::unique_ptr<raw_ostream> VerboseStream =
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std::make_unique<raw_string_ostream>(VerboseBuffer);
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Compiler.setOutputStream(std::make_unique<raw_null_ostream>());
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Compiler.setInvocation(std::move(Invocation));
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IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
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Compiler.createDiagnostics(
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new TextDiagnosticPrinter(llvm::nulls(), &*DiagOpts), true);
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Compiler.setVerboseOutputStream(std::move(VerboseStream));
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Success = ExecuteCompilerInvocation(&Compiler);
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}
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EXPECT_FALSE(Success);
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EXPECT_TRUE(!VerboseBuffer.empty());
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EXPECT_TRUE(StringRef(VerboseBuffer.data()).contains("errors generated"));
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}
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}
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