[antlr-interest] Errors while compiling

[mzukowski at yci.com]

You need to define an imaginary node before you can use it.  Put
SELECT_EXPRESSION into your 'tokens' section.

Monty

> -----Original Message-----
> From: Benhur [mailto:krupa_gadde at yahoo.com]
> Sent: Friday, October 18, 2002 1:12 AM
> To: antlr-interest at yahoogroups.com
> Subject: [antlr-interest] Errors while compiling
> 
> 
> Hi all,
> 
> Here is a sub-rule I have defined as part of my grammar where 
> MyParser extends Parser class.
> 
> select_expression:
> 	selectexp:"select"^ ( "all"! | "distinct"! )? select_list
> 	("into" column_name)?
> 	table_reference_list_from
> 	(where_condition_whole)?
> 	( connect_clause )?
> 	( group_clause )?
> 	( ( set_clause ) => set_clause )?
> 	( ( order_clause ) => order_clause )?
> 	( ( update_clause ) => update_clause )?
>         { #select_expression = #
> ([SELECT_EXPRESSION,"select_expression"], #select_expression); }
> 	;
> 
> While I compile this grammar using the antlr.Tool option, Parser, 
> Lexer and TokenTypes Java programs are generated. While I am 
> compiling these three Java programs, I am getting the followinr 
> error - 
> 
> PLSqlParser.java:11247: cannot resolve symbol
> symbol  : variable SELECT_EXPRESSION
> location: class MyParser.PLSqlParser
>                                         select_expression_AST = (AST)
> astFactory.make( (new ASTArray(
> 2)).add((AST)astFactory.create
> (SELECT_EXPRESSION,"select_expression")).add(select_expression_AST));
> 
>                                ^
> 1 error
> 
> Why is this happening? This is the only sub-rule where I am trying 
> to create an imaginary node. Any pointers for this, please let me 
> know.
> 
> Thanks in advance
> Benhur
> 
> 
> 
>  
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