[antlr-interest] Re: How to set filename in parser

[shmuel siegel]

> I'm wondering now, if we are only interested in line directives, whether 
> we could pass them to the parser as a token or tokens. Since they cannot 
> split statements perhaps they could be treated as just another statement 
> and processed appropriately?
> 
> Any comments?
> 
> David Wigg
> 
Why can't #line directives split statements? Why couldn't the source be
x= 3+
#include "commonExpression.h"
+4;

Anyway, what I ended up doing was
1) introduce a local variable in the lexer for saving the filename. (the 
one from inputState is inaccessable to the parser.)
2) save a reference to the lexer in the parser
3) overiding the parser's getFilename method to reference the saved 
filename.


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