[antlr-interest] ANTLR3 Large Grammar Issue
Daniel Rippel
drippel at yahoo.com
Wed Nov 28 11:00:15 PST 2007
That hack works.
I cut and pasted the following lexer rule verbatim at the end of my grammar, and now everything compiles nicely.
Kind of disconcerting.
STUPID_HACK
: 'a'+ '.'
;
----- Original Message ----
From: Andreas Bartho <andreas.bartho at inf.tu-dresden.de>
To: Daniel Rippel <drippel at yahoo.com>
Cc: antlr-interest at antlr.org
Sent: Wednesday, November 28, 2007 12:34:50 PM
Subject: Re: [antlr-interest] ANTLR3 Large Grammar Issue
Hi,
I experienced the same, but no one could tell me why. Have a look here
http://www.antlr.org/pipermail/antlr-interest/2007-September/023627.html
Maybe the presented hack helps you.
Andreas
Daniel Rippel wrote:
> I have a large grammar ~500 tokens. My target language is Java.
>
> After I run antlr to generate my Lexer.
> The Lexer fails to compile with the following error:
>
> TestLexer.java:11428: code too large
> public void mTokens() throws RecognitionException {
> ^
> 1 error
>
> And indeed the mTokens function is 10000+ lines of code.
> I also noticed and tried the -Xnoinlinedfa option. This just pushes
the code too large issue over to the Parser class.
>
> So, my question is:
> Is there an antlr3 limit on the size of grammars?
>
> I also noticed that grammar inheritance is out in v3.
> So, perhaps I can back up to v2 and break the grammar into smaller
chunks that way.
>
>
>
>
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