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/* This file is part of KDevelop
Copyright 2007 David Nolden <david.nolden.kdevelop@art-master.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "expressionparser.h"
#include <language/duchain/duchain.h>
#include "cppduchain/usebuilder.h"
#include "cppduchain/declarationbuilder.h"
#include "cppduchain/dumpchain.h"
#include "cppduchain/dumptypes.h"
#include <language/duchain/declaration.h>
#include <language/duchain/ducontext.h>
#include "ast.h"
#include "parsesession.h"
#include "parser.h"
#include "control.h"
#include <language/duchain/duchainlock.h>
#include <language/duchain/identifier.h>
#include "expressionvisitor.h"
#include <parser/rpp/chartools.h>
namespace Cpp {
using namespace KDevelop;
ExpressionParser::ExpressionParser( bool strict, bool debug, bool propagateConstness )
: m_strict(strict)
, m_debug(debug)
, m_propagateConstness(propagateConstness)
{
}
ExpressionEvaluationResult ExpressionParser::evaluateType( const QByteArray& unit, DUContextPointer context, const TopDUContext* source, bool forceExpression ) {
if( m_debug )
kDebug(9007) << "==== .Evaluating ..:" << endl << unit;
ParseSession session;
Control control;
DumpChain dumper;
Parser parser(&control);
AST* ast = 0;
DUContext::ContextType type;
{
DUChainReadLocker lock(DUChain::lock());
if( !context )
return ExpressionEvaluationResult();
type = context->type();
}
session.setContentsAndGenerateLocationTable(tokenizeFromByteArray(unit));
ast = parser.parseTypeOrExpression(&session, forceExpression);
if(!ast) {
kDebug(9007) << "Failed to parse \"" << unit << "\"";
return ExpressionEvaluationResult();
}
if (m_debug) {
kDebug(9007) << "===== AST:";
dumper.dump(ast, &session);
}
ast->ducontext = context.data();
if(!ast->ducontext) {
kDebug() << "context disappeared";
return ExpressionEvaluationResult();
}
ExpressionEvaluationResult ret = evaluateType( ast, &session, source );
return ret;
}
ExpressionEvaluationResult ExpressionParser::evaluateExpression( const QByteArray& expression, DUContextPointer context, const TopDUContext* source )
{
return evaluateType( expression, context, source, true );
}
ExpressionEvaluationResult ExpressionParser::evaluateType( AST* ast, ParseSession* session, const TopDUContext* source )
{
if (m_debug) {
DumpChain dumper;
kDebug(9007) << "===== AST:";
dumper.dump(ast, session);
}
ExpressionEvaluationResult ret;
ExpressionVisitor v(session, source, m_strict, m_propagateConstness);
v.parse( ast );
DUChainReadLocker lock(DUChain::lock());
ret.type = v.lastType()->indexed();
ret.isInstance = v.lastInstance().isInstance;
if(v.lastInstance().declaration)
ret.instanceDeclaration = DeclarationId(IndexedDeclaration(v.lastInstance().declaration.data()));
foreach(const DeclarationPointer &decl, v.lastDeclarations()) {
if(decl)
ret.allDeclarations.append(decl->id());
}
return ret;
}
}
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