[antlr-interest] Need help with rule-parameters (ANTLR bug?)

[Sean Walton]

 When I put in this:

1 cccl_declaration[Object tree]
2     : cccl_name cccl_def_options '\n'
3         -> ^(CCCL_DECLARATION cccl_name cccl_def_options)
4     | n=cccl_name cccl_def_options '\n' cccl_declaration[n.getTree()]
5         -> ^(CCCL_DECLARATION cccl_name cccl_def_options)
6     | cccl_name cccl_command_params* ':' '\n' cccl_execution_block
7         -> ^(CCCL_IMPLEMENTATION { $tree } cccl_name cccl_command_params* cccl_execution_block)
8     ;

I get this:

1    public final void synpred3_cccl_fragment() throws RecognitionException {
2-->  void  =null;
3
4
5        // /home/swalton/Projects/Arthur/Tools/Testing/CCCL/cccl.g:153:4: (n= cccl_name cccl_def_options '\\n' cccl_declaration[n.getTree()] )
6        // /home/swalton/Projects/Arthur/Tools/Testing/CCCL/cccl.g:153:4: n= cccl_name cccl_def_options '\\n' cccl_declaration[n.getTree()]
7        {
8        pushFollow(FOLLOW_cccl_name_in_synpred3_cccl402);
9-->    n=cccl_name();
10
11       state._fsp--;
12       if (state.failed) return ;
13
14       pushFollow(FOLLOW_cccl_def_options_in_synpred3_cccl404);
15       cccl_def_options();
16
17       state._fsp--;
18       if (state.failed) return ;
19
20       match(input,113,FOLLOW_113_in_synpred3_cccl406); if (state.failed) return ;
21
22       pushFollow(FOLLOW_cccl_declaration_in_synpred3_cccl408);
23       cccl_declaration(n.getTree());
24
26       state._fsp--;
27       if (state.failed) return ;
28
29       }

    }

Note the arrows. "void =null" is clearly wrong, and in "n=cccl_name()" the "n" is not defined (it is defined outside this synthetic predicate).

What I want to do:
I need to collect "cccl_name" from "cccl_declaration" and place them in the CCCL_IMPLEMENTATION (line #7) rewrite.

 

Sean Walton
ab8kf at aim.com