[antlr-interest] Bug: String constant is too big in Parser generated by ANTLR v4

A Z asicaddress at gmail.com
Mon Jan 23 16:13:40 PST 2012


I see this issue as well in the generated lexer code.

On Fri, Jan 13, 2012 at 12:28 AM, Terence Parr <parrt at cs.usfca.edu> wrote:

>  would have made a separate file,But it's just one more thing that can go
> wrong. Somebody could forget to include it, because it's not a .class file,
> and you might hook up the wrong file or the wrong version. Better to keep
> it all in the same file encapsulated. I guess I will simply have to break
> into multiple streams, which is easy enough. gzip'ing reduces it to about
> 25% of its original size, which can help your file size in the editor issue.
> Ter
> On Jan 12, 2012, at 5:34 AM, Christian wrote:
>
> > It's a combined grammar of the complete Spec C# v4. The parser's string
> > constant extends to 2000 LOC, the lexer's to 1000 LOC. Moreover, it
> > would be great if you could extract the constant into another class so
> > that loading and displaying the parser file with an editor (e.g.
> > Eclipse) does not take so long.
> >
> > Am 12.01.2012 02:31, schrieb Terence Parr:
> >> thanks…wondering if this would come up.  Wow. big grammar?
> >> Ter
> >> On Jan 11, 2012, at 5:22 PM, Christian wrote:
> >>
> >>> Hi everybody and especially Terence!
> >>>
> >>> I get the following error message from Eclipse after ANTLR v4 has
> >>> generated the parser in Java:
> >>>
> >>>   The type generates a string that requires more than 65535 bytes to
> >>> encode in Utf8 format in the constant pool.
> >>>
> >>> I think this is due to your _serializedATN string. Could you
> dynamically
> >>> build it with a StringBuilder perhaps? If you fix it, apply the same
> >>> solution to the lexer please.
> >>>
> >>> Regards,
> >>> Christian
> >>>
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