[antlr-interest] stringtemplate & tree walkers

[Arnulf Heller]

hi there,

are there any complex examples of tree walkers emitting stringtemplates?

What I want to do is to generate C++ header and implementation files 
with forward declarations etc
This means that names might show up in multiple places in the resulting files.

here is a small example:

walker:

module
	: ^(R n=IDENT) -> R(name={$n})
	;

header file:
#include "<R>.h"

class <R>; // ok, no one would do that ...

class <R> : public <R>
{
	R	r1;
	R*	r2;
};


I know that I can build up data structures in the walker, finally 
triggering a global stringtemplate (as far as I know this is what 
happens in the ANTLR backend).
The stringtemplate in this case would look pretty much like the 
header file above.

But how can I do that with the "->" semantics in the walker? Do I 
need multiple passes then, replacing the string template group file 
and collecting the results afterwards?

thx