stage4/stage4.cc
author Mario de Sousa <msousa@fe.up.pt>
Thu, 21 Dec 2017 17:56:12 +0000
changeset 1065 0066fe31a034
parent 596 4efb11e44065
permissions -rw-r--r--
fix bug: allow variables with names starting with 'var' to be used in the first line of POU body
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/*
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 *  Copyright (C) 2003-2011  Mario de Sousa (msousa@fe.up.pt)
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 *  Copyright (C) 2007-2011  Laurent Bessard and Edouard Tisserant
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 *
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 *  This program is free software: you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation, either version 3 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
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 *
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 * This code is made available on the understanding that it will not be
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 * used in safety-critical situations without a full and competent review.
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 */
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/*
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 * An IEC 61131-3 compiler.
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 *
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 * Based on the
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 * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
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 *
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 */
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/*
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 * This file contains the code that stores the output generated
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 * by each specific version of the 4th stage.
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 */
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// #include <stdio.h>  /* required for NULL */
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#include <string>
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#include <iostream>
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#include <fstream>
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#include <stdlib.h>
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#include "stage4.hh"
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#include "../main.hh" // required for ERROR() and ERROR_MSG() macros.
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#define FIRST_(symbol1, symbol2) (((symbol1)->first_order < (symbol2)->first_order)   ? (symbol1) : (symbol2))
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#define  LAST_(symbol1, symbol2) (((symbol1)->last_order  > (symbol2)->last_order)    ? (symbol1) : (symbol2))
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#include <stdarg.h>
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void stage4err(const char *stage4_generator_id, symbol_c *symbol1, symbol_c *symbol2, const char *errmsg, ...) {
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    va_list argptr;
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    va_start(argptr, errmsg); /* second argument is last fixed pamater of stage4err() */
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    if ((symbol1 != NULL) && (symbol2 != NULL))
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      fprintf(stderr, "%s:%d-%d..%d-%d: ",
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              FIRST_(symbol1,symbol2)->first_file, FIRST_(symbol1,symbol2)->first_line, FIRST_(symbol1,symbol2)->first_column,
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                                                   LAST_(symbol1,symbol2) ->last_line,  LAST_(symbol1,symbol2) ->last_column);
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    fprintf(stderr, "error %s: ", stage4_generator_id);
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    vfprintf(stderr, errmsg, argptr);
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    fprintf(stderr, "\n");
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    // error_count++;
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    va_end(argptr);
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}
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stage4out_c::stage4out_c(std::string indent_level):
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	m_file(NULL) {
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  out = &std::cout;
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  this->indent_level = indent_level;
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  this->indent_spaces = "";
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  allow_output = true;
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}
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stage4out_c::stage4out_c(const char *dir, const char *radix, const char *extension, std::string indent_level) {	
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  std::string filename(radix);
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  filename += ".";
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  filename += extension;
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  std::string filepath("");
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  if (dir != NULL) {
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    filepath += dir;
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    filepath += "/";
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  }
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  filepath += filename;
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  std::fstream *file = new std::fstream(filepath.c_str(), std::fstream::out);
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  if(file->fail()){
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    std::cerr << "Cannot open " << filename << " for write access \n";
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    exit(EXIT_FAILURE);
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  }else{
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    std::cout << filename << "\n";
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  }
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  out = file;
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  m_file = file;
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  this->indent_level = indent_level;
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  this->indent_spaces = "";
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  allow_output = true;
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}
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stage4out_c::~stage4out_c(void) {
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  if(m_file)
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  {
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    m_file->close();
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    delete m_file;
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  }
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}
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void stage4out_c::flush(void) {
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  out->flush();
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}
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void stage4out_c::enable_output(void) {
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  allow_output = true;
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}
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void stage4out_c::disable_output(void) {
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  allow_output = false;
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}
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void stage4out_c::indent_right(void) {
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  indent_spaces+=indent_level;
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}
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void stage4out_c::indent_left(void) {
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  if (indent_spaces.length() >= indent_level.length())
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    indent_spaces.erase(indent_spaces.length() - indent_level.length(), indent_level.length());
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  else
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    indent_spaces.erase();
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}
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void *stage4out_c::print(           std::string value) {if (!allow_output) return NULL; *out << value; return NULL;}
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void *stage4out_c::print(           const char *value) {if (!allow_output) return NULL; *out << value; return NULL;}
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//void *stage4out_c::print(               int64_t value) {if (!allow_output) return NULL; *out << value; return NULL;}
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//void *stage4out_c::print(              uint64_t value) {if (!allow_output) return NULL; *out << value; return NULL;}
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void *stage4out_c::print(              real64_t value) {if (!allow_output) return NULL; *out << value; return NULL;}
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void *stage4out_c::print(                   int value) {if (!allow_output) return NULL; *out << value; return NULL;}
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void *stage4out_c::print(              long int value) {if (!allow_output) return NULL; *out << value; return NULL;}
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void *stage4out_c::print(         long long int value) {if (!allow_output) return NULL; *out << value; return NULL;}
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void *stage4out_c::print(unsigned           int value) {if (!allow_output) return NULL; *out << value; return NULL;}
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void *stage4out_c::print(unsigned      long int value) {if (!allow_output) return NULL; *out << value; return NULL;}
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void *stage4out_c::print(unsigned long long int value) {if (!allow_output) return NULL; *out << value; return NULL;}
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void *stage4out_c::print_long_integer(unsigned long l_integer, bool suffix) {
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  if (!allow_output) return NULL;
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  *out << l_integer;
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  if (suffix) *out << "UL";
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  return NULL;
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}
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void *stage4out_c::print_long_long_integer(unsigned long long ll_integer, bool suffix) {
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  if (!allow_output) return NULL;
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  *out << ll_integer;
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  if (suffix) *out << "ULL";
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  return NULL;
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}
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void *stage4out_c::printupper(const char *str) {
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  if (!allow_output) return NULL;
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  for (int i = 0; str[i] != '\0'; i++)
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    *out << (unsigned char)toupper(str[i]);
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  return NULL;
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}
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void *stage4out_c::printlocation(const char *str) {
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  if (!allow_output) return NULL;
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  *out << "__";
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  for (int i = 0; str[i] != '\0'; i++)
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    if(str[i] == '.')
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      *out << '_';
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    else
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      *out << (unsigned char)toupper(str[i]);
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  return NULL;
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}
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void *stage4out_c::printlocation_comasep(const char *str) {
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  if (!allow_output) return NULL;
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  *out << (unsigned char)toupper(str[0]);
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  *out << ',';
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  *out << (unsigned char)toupper(str[1]);
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  *out << ',';
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  for (int i = 2; str[i] != '\0'; i++)
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    if(str[i] == '.')
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      *out << ',';
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    else
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      *out << (unsigned char)toupper(str[i]);
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  return NULL;
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}
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0
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void *stage4out_c::printupper(std::string str) {
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  if (!allow_output) return NULL;
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  /* The string standard class does not have a converter member function to upper case.
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   * We have to do it ourselves, a character at a time...
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   */
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#if 0
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  /* The C++ way of doint things... */
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  for (string::const_iterator p = str.begin(); p != str.end(); ++p)
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    *out << (unsigned char)toupper(*p);
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#else
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  /* Or more simply... */
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    printupper(str.c_str());
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#endif
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  return NULL;
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}
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void *stage4out_c::printlocation(std::string str) {
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  if (!allow_output) return NULL;
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  return printlocation(str.c_str());
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}
0
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/***********************************************************************/
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/***********************************************************************/
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/***********************************************************************/
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/***********************************************************************/
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/***********************************************************************/
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/***********************************************************************/
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/***********************************************************************/
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/***********************************************************************/
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/***********************************************************************/
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/***********************************************************************/
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/* forward declarations... */
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/* These functions will be implemented in generate_XXX.cc */
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visitor_c *new_code_generator(stage4out_c *s4o, const char *builddir);
0
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void delete_code_generator(visitor_c *code_generator);
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int stage4(symbol_c *tree_root, const char *builddir) {
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  stage4out_c s4o;
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  visitor_c *generate_code = new_code_generator(&s4o, builddir);
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  if (NULL == generate_code) ERROR;
0
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  tree_root->accept(*generate_code);
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  delete_code_generator(generate_code);
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  return 0;
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}
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