Hello.
I am trying to make a not too complicated translator using ANTLR, the
aproach I'm taking makes use of Multimaps in the grammar file.
However I'm having some trouble initializing them, here's how I do it:
grammar FSM;
options {output=template;}
@header {
import org.antlr.stringtemplate.*;
import org.antlr.misc.MultiMap;
}
model
scope{
Multimap <Integer, String> CMap;
Multimap <Integer, String> UMap;
}
@init {
$model::UMap = HashMultimap.create();
$model::CMap = HashMultimap.create();
}
: RULES
-> RewriteRule
;
...
When I try to debug that in ANTLWorks, or try to build project in NetBeans I
get the following error:
error(104): cannot find an attribute name in attribute declaration
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
Which seems to be a problem with the angled brackets or something. Because
If I comment out /*Multimap <Integer, String> CMap*/ the error goes away.
What would be a correct way to initialize a Multimap visible to that scope?
For your time, thank you.
- APJ
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