How can I solute this problem?
I am developping a compiler for a VB-like language, and I use ANTLR2.7.7
to generate my AST builder, but now I have a problem when create tree
node for this production:
varDecl
: "Dim" identList "As" type
;
identList
: IDENT (LPAREN INTLIT RPAREN)? (COMMA IDENT (LPAREN INTLIT RPAREN)? )*
;
I want to create respective tree node for a single variable and an array
variable,but the problem is both of their first set contain the token
IDENT which mean an identifier:
varDecl!
options {defaultErrorHandler = true;} // let ANTLR handle errors
: d:"Dim" idl:identList "As"! t:type
{
#varDecl = #(#[VARDEF,"VARDEF"], t, idl);
}
;
identList
: id:IDENT //a tree node has add to tree
(lb:LPAREN^ /*now I want to create a ARRAY_DEF note instand of a single
variable tree node*/ INTLIT RPAREN!)?
(COMMA! IDENT (lb:LPAREN INTLIT RPAREN)? )*
;
And how do I solute this problem?
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