[antlr-interest] C# rules cannot return chars

Vaclav Barta vbar at comp.cz
Tue Jul 3 05:32:05 PDT 2007

Micheal J wrote:
 >> for the C# target, a rule like
 >> test returns [ char value ] :
 >> 	'test' { $value = 'a'; }
 >> 	;
 >> produces code whose compilation fails with
 >> error CS0031: Constant value '0' cannot be converted to a 'char'
 > Thanks for the report. Do you have a simple grammar that demonstrates
 > this?
Well, not a complete grammar - I've just added the rule above to my
work-in-progress grammar to reproduce the problem. I believe any C# 
grammar will do...


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