[antlr-interest] ANTLR StringTemplate interface.

[rkevinburton at charter.net]

I am really new to ANTLR and so am even newer to StingTemplates. I decided to cut and paste my tree grammar to use templates. Terrance says that StingTemplates are better than print statements so I thought I would try.

Needless to say it didn't work. The generated files from the grammar would not compile.

Here is the opening of my template grammar:

tree grammar ECMAScriptTemplate ;

options
{
	output = template;
	tokenVocab = ECMAScript ;
	language = CSharp2 ;
}

And the template rewrite rultes that I am dealing with right now look like:

functionDeclaration
	: ^( FUNCTION Identifier? LPAREN (fa+=functionArguments)* RPAREN block )
          -> template(name={$Identifier.text}, args={$fa.st})
          "<name>(<args; separator=\", \">)"
	;

functionArguments
	: ^( ARGS name=Identifier )
          -> template(argument={$name}) "<argument>"
	| ^( ARGS name=Identifier TYPES type=Identifier )
          -> template(argument={$name}, type={$type}) "<argument> <type>"
	;

Basically thiis grammar parses a JavaScript input with one modification. I have added suggested types to the arugment list. The tree walker and parser both are very happy right now. I am trying to get the StringTemplate to work. The above should recognize 'function a(b,c)' as well as 'function a(b:B,c)' where B is a type. Naturally I would like to build a template that "fills" in the argument list with types or not. As it sits now when code generated with the above statements I get:

            	// TEMPLATE REWRITE
            	// 220:11: -> template(name=$Identifier.textargs=$fa.st) \"<name>(<args; separator=\", \">)\"
            	{
            	    retval.ST = new StringTemplate(templateLib, "<name>(<args; separator=\", \">)",
            	  new STAttrMap().Add("name", ((Identifier1 != null) ? Identifier1.Text : null)).Add("args", list_fa.st));
            	}

'object' does not contain a definition for 'Text' and no extension method 'Text' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?)

Any ideas what is wrong?

Thank you.

Kevin