recognition_exception.sa

来自「Java写的词法/语法分析器。可生成JAVA语言或者是C++的词法和语法分析器。」· SA 代码 · 共 52 行

(* 

  ANTLR Translator Generator
  Project led by Terence Parr at http://www.jGuru.com
  Software rights: http://www.antlr.org/RIGHTS.html
 
  $Id: //depot/code/org.antlr/release/antlr-2.7.0/lib/sather/Antlr/recognition_exception.sa#1 $

*)

abstract class $ANTLR_RECOGNITION_EXCEPTION < $ANTLR_EXCEPTION is
   str : STR;
end;

class ANTLR_RECOGNITION_EXCEPTION < $ANTLR_RECOGNITION_EXCEPTION is

   private attr msg : STR;
   readonly attr line : INT;
   readonly attr column : INT;
   readonly attr file_name : STR;
   
   create : SAME is
      return #SAME( "parsing error" );
   end;
	 
   create ( m : STR ) : SAME is
      res : SAME := new;
      res.msg := m;
      return res;
   end;
   
   create ( m : STR , file : STR , ln : INT ) : SAME is
      res : SAME := #SAME( m );
      res.file_name := file;
      res.line := ln;
      return res;
   end;
	 
   str : STR is
      return  file_line_str + msg;
   end;

   message : STR is
      return msg;
   end;
   
   file_line_str : STR is
      return ANTLR_FILE_LINE_FORMATTER::format_string( file_name, line );
   end;
	    
end;