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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include <clang/Tooling/Tooling.h>
#include <clang/Basic/DiagnosticOptions.h>
#include <clang/Frontend/CompilerInstance.h>
#include <clang/Frontend/FrontendActions.h>
#include <clang/Lex/PreprocessorOptions.h>
namespace ClangBackEnd {
class GeneratePCHAction final : public clang::GeneratePCHAction
{
public:
GeneratePCHAction(llvm::StringRef filePath, llvm::StringRef fileContent)
: m_filePath(filePath)
, m_fileContent(fileContent)
{}
bool BeginInvocation(clang::CompilerInstance &compilerInstance) override
{
compilerInstance.getPreprocessorOpts().DisablePCHValidation = true;
compilerInstance.getPreprocessorOpts().AllowPCHWithCompilerErrors = true;
compilerInstance.getDiagnosticOpts().ErrorLimit = 0;
compilerInstance.getFrontendOpts().SkipFunctionBodies = true;
compilerInstance.getFrontendOpts().IncludeTimestamps = true;
std::unique_ptr<llvm::MemoryBuffer> Input = llvm::MemoryBuffer::getMemBuffer(m_fileContent);
compilerInstance.getPreprocessorOpts().addRemappedFile(m_filePath, Input.release());
return clang::GeneratePCHAction::BeginSourceFileAction(compilerInstance);
}
private:
llvm::StringRef m_filePath;
llvm::StringRef m_fileContent;
};
class GeneratePCHActionFactory final : public clang::tooling::FrontendActionFactory
{
public:
GeneratePCHActionFactory(llvm::StringRef filePath, llvm::StringRef fileContent)
: m_filePath(filePath)
, m_fileContent(fileContent)
{}
clang::FrontendAction *create() override
{
return new GeneratePCHAction{m_filePath, m_fileContent};
}
private:
llvm::StringRef m_filePath;
llvm::StringRef m_fileContent;
};
} // namespace ClangBackEnd
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