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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#ifndef CLANGPARSER_H
#define CLANGPARSER_H
#include <clang-c/Index.h>
#include <QtCore/QByteArrayList>
#include <QtCore/QHash>
#include <QtCore/QString>
#include <QtCore/QList>
#include <string_view>
#include <utility>
namespace clang {
struct Diagnostic;
class SourceFileCache {
public:
std::string_view getCodeSnippet(const CXCursor &cursor, QString *errorMessage = nullptr);
QString getFileName(CXFile file);
private:
using FileBufferCache = QHash<CXFile, QByteArray>;
using FileNameCache = QHash<CXFile, QString>;
FileBufferCache m_fileBufferCache;
FileNameCache m_fileNameCache;
};
enum class LocationType
{
Main, // Main header parsed for bindings
Other, // A header parsed for bindings
System, // A system header
Unknown // Clang internal
};
class BaseVisitor {
Q_DISABLE_COPY_MOVE(BaseVisitor)
public:
using Diagnostics = QList<Diagnostic>;
enum StartTokenResult { Error, Skip, Recurse };
BaseVisitor();
virtual ~BaseVisitor();
// Whether location should be visited.
// defaults to clang_Location_isFromMainFile()
virtual bool visitLocation(const QString &fileName, LocationType locationType) const;
virtual StartTokenResult startToken(const CXCursor &cursor) = 0;
virtual bool endToken(const CXCursor &cursor) = 0;
StartTokenResult cbHandleStartToken(const CXCursor &cursor);
bool cbHandleEndToken(const CXCursor &cursor, StartTokenResult startResult);
QString getFileName(CXFile file) { return m_fileCache.getFileName(file); }
std::string_view getCodeSnippet(const CXCursor &cursor);
QString getCodeSnippetString(const CXCursor &cursor);
Diagnostics diagnostics() const;
void setDiagnostics(const Diagnostics &d);
void appendDiagnostic(const Diagnostic &d);
// For usage by the parser
bool _handleVisitLocation( const CXSourceLocation &location);
private:
SourceFileCache m_fileCache;
Diagnostics m_diagnostics;
CXFile m_currentCxFile{};
bool m_visitCurrent = true;
};
bool parse(const QByteArrayList &clangArgs,
bool addCompilerSupportArguments,
unsigned clangFlags, BaseVisitor &ctx);
} // namespace clang
#endif // !CLANGPARSER_H
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