/******************************************************************************
 * Top contributors (to current version):
 *   Christopher L. Conway, Morgan Deters, Andrew Reynolds
 *
 * This file is part of the cvc5 project.
 *
 * Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
 * in the top-level source directory and their institutional affiliations.
 * All rights reserved.  See the file COPYING in the top-level source
 * directory for licensing information.
 * ****************************************************************************
 *
 * [[ Add one-line brief description here ]]
 *
 * [[ Add lengthier description here ]]
 */

#include "parser/cvc/cvc_input.h"

#include <antlr3.h>

#include "base/check.h"
#include "parser/antlr_input.h"
#include "parser/cvc/CvcLexer.h"
#include "parser/cvc/CvcParser.h"
#include "parser/parser_exception.h"

namespace cvc5 {
namespace parser {

/* Use lookahead=3 */
CvcInput::CvcInput(AntlrInputStream& inputStream) :
  AntlrInput(inputStream,6) {
  pANTLR3_INPUT_STREAM input = inputStream.getAntlr3InputStream();
  Assert(input != NULL);

  d_pCvcLexer = CvcLexerNew(input);
  if( d_pCvcLexer == NULL ) {
    throw ParserException("Failed to create CVC lexer.");
  }

  setAntlr3Lexer( d_pCvcLexer->pLexer );

  pANTLR3_COMMON_TOKEN_STREAM tokenStream = getTokenStream();
  Assert(tokenStream != NULL);

  d_pCvcParser = CvcParserNew(tokenStream);
  if( d_pCvcParser == NULL ) {
    throw ParserException("Failed to create CVC parser.");
  }

  setAntlr3Parser(d_pCvcParser->pParser);
}


CvcInput::~CvcInput() {
  d_pCvcLexer->free(d_pCvcLexer);
  d_pCvcParser->free(d_pCvcParser);
}

Command* CvcInput::parseCommand() {
  return d_pCvcParser->parseCommand(d_pCvcParser);
}

api::Term CvcInput::parseExpr()
{
  return d_pCvcParser->parseExpr(d_pCvcParser);
}

/*
pANTLR3_LEXER CvcInput::getLexer() {
  return d_pCvcLexer->pLexer;
}
*/

}  // namespace parser
}  // namespace cvc5