[antlr-interest] Can TokenRewriteStream be applied to rules?

[YINGAnnie]

Hi again,
 
TokenRewriteStream can only replace the declared  token, not the rule. right?
 
for example,If I want to replace VAR, it works fine, But if I want to replace variableDeclaration , the error said $a can not be resolved.
 
variableStatement
    :    m= VAR? variableDeclaration ( COMMA variableDeclaration )* semic  {tokens.replace($m, "something else");}                               
    ;
 
 
variableStatement
    :    VAR? variableDeclaration ( COMMA m=variableDeclaration )* semic  {tokens.replace($m, "something else");}                               
    ;
 
So how can I replace variableDeclaration ?
 
Thanks in advance.
 
Annie
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