/*

  This file is part of solidity.

  solidity is free software: you can redistribute it and/or modify

  it under the terms of the GNU General Public License as published by

  the Free Software Foundation, either version 3 of the License, or

  (at your option) any later version.

  solidity 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 General Public License for more details.

  You should have received a copy of the GNU General Public License

  along with solidity.  If not, see <http://www.gnu.org/licenses/>.

*/

// SPDX-License-Identifier: GPL-3.0

/**

 * @author Christian <c@ethdev.com>

 * @date 2016

 * Solidity parser shared functionality.

 */

#include <liblangutil/ParserBase.h>

#include <liblangutil/Scanner.h>

#include <liblangutil/ErrorReporter.h>

using namespace solidity;

using namespace solidity::langutil;

SourceLocation ParserBase::currentLocation() const

{

  return m_scanner->currentLocation();

}

Token ParserBase::currentToken() const

{

  return m_scanner->currentToken();

}

Token ParserBase::peekNextToken() const

{

  return m_scanner->peekNextToken();

}

std::string_view ParserBase::currentLiteral() const

{

  return m_scanner->currentLiteral();

}

Token ParserBase::advance()

{

  return m_scanner->next();

}

std::string ParserBase::tokenName(Token _token)

{

  if (_token == Token::Identifier)

    return "identifier";

  else if (_token == Token::EOS)

    return "end of source";

  else if (TokenTraits::isReservedKeyword(_token))

    return "reserved keyword '" + TokenTraits::friendlyName(_token) + "'";

  else if (TokenTraits::isElementaryTypeName(_token)) //for the sake of accuracy in reporting

  {

    ElementaryTypeNameToken elemTypeName = m_scanner->currentElementaryTypeNameToken();

    return "'" + elemTypeName.toString() + "'";

  }

  else

    return "'" + TokenTraits::friendlyName(_token) + "'";

}

void ParserBase::expectToken(Token _value, bool _advance)

{

  Token tok = m_scanner->currentToken();

  if (tok != _value)

    fatalParserError(

      2314_error,

      "Expected " + ParserBase::tokenName(_value) + " but got " + tokenName(tok)

    );

  if (_advance)

    advance();

}

void ParserBase::increaseRecursionDepth()

{

  m_recursionDepth++;

  if (m_recursionDepth >= 1200)

    fatalParserError(7319_error, "Maximum recursion depth reached during parsing.");

}

void ParserBase::decreaseRecursionDepth()

{

  solAssert(m_recursionDepth > 0, "");

  m_recursionDepth--;

}

void ParserBase::parserWarning(ErrorId _error, std::string const& _description)

{

  m_errorReporter.warning(_error, currentLocation(), _description);

}

void ParserBase::parserWarning(ErrorId _error, SourceLocation const& _location, std::string const& _description)

{

  m_errorReporter.warning(_error, _location, _description);

}

void ParserBase::parserError(ErrorId _error, SourceLocation const& _location, std::string const& _description)

{

  m_errorReporter.parserError(_error, _location, _description);

}

void ParserBase::parserError(ErrorId _error, std::string const& _description)

{

  parserError(_error, currentLocation(), _description);

}

void ParserBase::fatalParserError(ErrorId _error, std::string const& _description)

{

  fatalParserError(_error, currentLocation(), _description);

}

void ParserBase::fatalParserError(ErrorId _error, SourceLocation const& _location, std::string const& _description)

{

  m_errorReporter.fatalParserError(_error, _location, _description);

}