[antlr-interest] Bug in C# template for code generation?

[Johannes Luber]

Hello!

When generating the attached grammar, the resulting
ANTLR3ToRelaxNGParser.cs has the following snippet in the
element()-function:

object root_1 = (object)adaptor.GetNilNode();
root_1 = (object)adaptor.BecomeRoot(stream_atom.nextNode(), root_1);

The compiler complains that
"'Antlr.Runtime.Tree.RewriteRuleSubtreeStream' does not contain a
definition for 'nextNode'". As I haven't touched this particular code,
it means either the C# template contains a bug or the element rule

element // Simplified AST
    :   id ('='|'+=') rulepart=(atom|block) ebnfSuffix?
        -> ^($rulepart ebnfSuffix?)
    |   atom ebnfSuffix? -> ^(atom ebnfSuffix?)
    |	ebnf
    |   ACTION ->
    |   SEMPRED '=>'? ->
    |   treeSpec ->
    ;

contains an error. What is it?

Best regards,
Johannes Luber
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