[antlr-interest] tree grammar error (newbie)- missing attribute access
Carter Cheng
carter_cheng at yahoo.com
Tue Feb 10 07:50:48 PST 2009
Hello,
I am getting a missing attribute access error on a number of rules which I do not quite understand and was hoping I might be able to get some help fixing them. The errors point to the following rules in the tree grammar.
varDecls[std::list<std::string> & err] returns [std::map<Symbol,Type*> vars]
: (v=varDecl { $vars.insert($v); } )+
;
formalList returns [pair< std::list<Type*>, bool > p]
: { $p.second = false; } (t=formal { $p.first.push_back($t); } )* (ELLIPSIS { $p.second = true; } )?
;
with
varDecl returns [pair<Symbol,Type*> var]
: t=type (s=STAR)? i=IDENT { $var = pair<Symbol,Type*>($i.text, $t); }
;
formal returns [Type* type]
: ^(FORMAL t=formalType (s=STAR)? IDENT) { $type = $t; }
;
I was searching through the archive on this but couldnt find a solution that seemed to work. i.e. changing $v --> $v.value gives an unknown attribute type error. Any help would be appreciated.
Thanks in advance,
Carter.
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