/****************************************************************************
**
** Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Script Generator project on Qt Labs.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "control.h"
#include "lexer.h"

bool Control::_M_printErrors = false;

Control::Control()
  : current_context(0)
  , _M_skipFunctionBody(false)
  , _M_lexer(0)
  , _M_parser(0)
{
  pushContext();

  declareTypedef(findOrInsertName("__builtin_va_list", strlen("__builtin_va_list")), 0);
}

Control::~Control()
{
  popContext();

  Q_ASSERT(current_context == 0);
}

Lexer* Control::changeLexer(Lexer* lexer)
{
  Lexer* old = _M_lexer;
  _M_lexer = lexer;
  return old;
}

Parser* Control::changeParser(Parser* parser)
{
  Parser* old = _M_parser;
  _M_parser = parser;
  return old;
}

Type* Control::lookupType(const NameSymbol* name) const
{
  Q_ASSERT(current_context != 0);

  return current_context->resolve(name);
}

void Control::declare(const NameSymbol* name, Type* type)
{
  //printf("*** Declare:");
  //printSymbol(name);
  //putchar('\n');
  Q_ASSERT(current_context != 0);

  current_context->bind(name, type);
}

void Control::pushContext()
{
  // printf("+Context\n");
  Context* new_context = new Context;
  new_context->parent = current_context;
  current_context = new_context;
}

void Control::popContext()
{
  // printf("-Context\n");
  Q_ASSERT(current_context != 0);

  Context* old_context = current_context;
  current_context = current_context->parent;

  delete old_context;
}

void Control::declareTypedef(const NameSymbol* name, Declarator* d)
{
  //  printf("declared typedef:");
  //  printSymbol(name);
  //  printf("\n");
  stl_typedef_table.insert(name, d);
}

bool Control::isTypedef(const NameSymbol* name) const
{
  //  printf("is typedef:");
  //  printSymbol(name);
  // printf("= %d\n", (stl_typedef_table.find(name) != stl_typedef_table.end()));

  return stl_typedef_table.contains(name);
}

QList<Control::ErrorMessage> Control::errorMessages() const
{
  return _M_error_messages;
}

void Control::clearErrorMessages()
{
  _M_error_messages.clear();
}

void Control::reportError(const ErrorMessage& errmsg)
{
  _M_error_messages.append(errmsg);
  if (_M_printErrors) {
    printf("%s (%s:%d:%d)\n", qPrintable(errmsg.message()), qPrintable(errmsg.fileName()), errmsg.line(),
      errmsg.column());
  }
}

// kate: space-indent on; indent-width 2; replace-tabs on;
