[antlr-interest] Heterogeneous AST: returns [ Tom/Jerry]

[Tobias Pape]

Hi me 262


Am 2007-04-06 um 03:45 schrieb me 262:


>
> expr returns [float r]
> {
> 	float a,b;
> 	r=0;
> }
> 	:	#(PLUS a=expr b=expr)	{r = a+b;}
> 	|	#(STAR a=expr b=expr)	{r = a*b;}
> 	|	i:INT			{r = atof(i->getText().c_str());}
> 	;

what about:


expr returns [comic C]
	:	( TOM ) => t=TOM { C=(comic)t; }
	|	( JERRY ) => j=JERRY { C=(comic)j; }
	;

if Tom and jerry have a common super/parent class.

hth,
	-Tobias
-------------- next part --------------
A non-text attachment was scrubbed...
Name: PGP.sig
Type: application/pgp-signature
Size: 186 bytes
Desc: Signierter Teil der Nachricht
Url : http://www.antlr.org/pipermail/antlr-interest/attachments/20070406/2c7ee258/attachment.bin