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/*
SPDX-FileCopyrightText: 2013 Milian Wolff <mail@milianw.de>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include <KAboutData>
#include <language/util/debuglanguageparserhelper.h>
#include "../duchain/parsesession.h"
#include "../duchain/debugvisitor.h"
#include "../duchain/clangindex.h"
#include "../util/clangtypes.h"
using namespace KDevelop;
using namespace KDevelopUtils;
class ClangParser
{
public:
ClangParser(const bool printAst, const bool printTokens)
: m_session({})
, m_printAst(printAst)
, m_printTokens(printTokens)
{
}
/// parse contents of a file
void parseFile( const QString &fileName )
{
if (!QFile::exists(fileName)) {
qerr << "File to parse does not exist: " << fileName << Qt::endl;
return;
}
m_session.setData(ParseSessionData::Ptr(new ParseSessionData({}, &m_index, environment(fileName))));
runSession();
}
/// parse code directly
void parseCode( const QString &code )
{
const QString fileName = QStringLiteral("stdin.cpp");
m_session.setData(ParseSessionData::Ptr(new ParseSessionData({UnsavedFile(fileName, {code})},
&m_index, environment(fileName))));
runSession();
}
void setIncludePaths(const QStringList& paths)
{
m_includePaths = paths;
}
void setCustomArgs(const QString& args)
{
m_customArgs = args;
}
private:
/**
* actually run the parse session
*/
void runSession()
{
if (!m_session.unit()) {
qerr << "failed to parse code" << Qt::endl;
}
if (m_printTokens) {
CXTranslationUnit TU = m_session.unit();
auto cursor = clang_getTranslationUnitCursor(TU);
CXSourceRange range = clang_getCursorExtent(cursor);
const ClangTokens tokens(TU, range);
for (CXToken token : tokens) {
CXString spelling = clang_getTokenSpelling(TU, token);
qout << "token= " << clang_getCString(spelling) << Qt::endl;
clang_disposeString(spelling);
}
}
if (!m_session.unit()) {
qerr << "no AST tree could be generated" << Qt::endl;
exit(255);
return;
}
qout << "AST tree successfully generated" << Qt::endl;
auto file = m_session.mainFile();
if (m_printAst) {
DebugVisitor visitor(&m_session);
visitor.visit(m_session.unit(), file);
}
const auto problems = m_session.problemsForFile(file);
if (!problems.isEmpty()) {
qerr << "\nproblems encountered during parsing:" << Qt::endl;
for (const ProblemPointer& problem : problems) {
qerr << problem->toString() << Qt::endl;
}
} else {
qout << "no problems encountered during parsing" << Qt::endl;
}
}
ClangParsingEnvironment environment(const QString& fileName) const
{
ClangParsingEnvironment environment;
environment.setTranslationUnitUrl(IndexedString(fileName));
environment.setParserSettings(ClangSettingsManager::self()->parserSettings(fileName));
environment.addIncludes(toPathList(m_includePaths));
environment.addParserArguments(m_customArgs);
return environment;
}
ParseSession m_session;
const bool m_printAst;
const bool m_printTokens;
ClangIndex m_index;
QStringList m_includePaths;
QString m_customArgs;
};
namespace KDevelopUtils {
template<>
void setupCustomArgs<ClangParser>(QCommandLineParser* args)
{
args->addOption(QCommandLineOption{QStringList{"I", "include"}, i18n("add include path"), QStringLiteral("include")});
args->addOption(QCommandLineOption{QStringList{"custom-arg"}, i18n("custom clang args"), QStringLiteral("arg")});
}
template<>
void setCustomArgs<ClangParser>(ClangParser* parser, QCommandLineParser* args)
{
parser->setIncludePaths(args->values(QStringLiteral("include")));
parser->setCustomArgs(args->values(QStringLiteral("custom-arg")).join(QLatin1String(" ")));
}
}
int main(int argc, char* argv[])
{
KAboutData aboutData( QStringLiteral("clang-parser"), i18n( "clang-parser" ),
QStringLiteral("1"), i18n("KDevelop Clang parser debugging utility"), KAboutLicense::GPL,
i18n( "2013 Milian Wolff" ), QString(), QStringLiteral("https://www.kdevelop.org/") );
return KDevelopUtils::initAndRunParser<ClangParser>(aboutData, argc, argv);
}
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