[antlr-interest] Own AST : initializing extra private members

[Kristoff Tempelaere]

Hello,
 
I'm using my own AST which has following definition (only the relevant parts) :
 
class MyAST : public CommonAST {
private:
    int _x;
public:
    void setx(int x)  {_x=x;}
    in getx() const {return _x;}
   //and others...
};
 
 
I want to set the x-value during parsing.  I do this in the grammar (of the parser) by labeling the tokenreference and adding a semantic action {label->setx(7);} for example.  But this adds a lot of semantic actions to my grammar, just for setting this x-value.
 
Can this be done in a better way?  Instead of using myfactory.create(token), i would like the parser calls MyFactory.create(token,xvalue), passing the xvalue in the grammar.  That is what I want, to avoid all those semantic actions... passing in the grammar values to initialize AST-members in a more elegant way.  Is this possible?  And how?
 
Thx in advance!
Kristoff
 



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