I am having a problem with the disambiguation of this parser. I would like to mention that i am using antlrworks 1.4.3(it's a must i use it, homework assignment). I also must not use backtrack=true
It should match inputs like
main Int a, Char b, MyClass c -> Int :
expr ';'
.
.
.
expr ';'
end';'
I also comented the parser after ':' because this problem did not let me generate the code
program
: classDef+ -> ^(PROGRAM classDef+)
;
classDef
: CLASS name=ID (INHERITS parent=ID)? classBlock* END ';' ->
^(CLASS $name ^(INHERITS $parent)? classBlock*)
;
classBlock
: VAR assigmentBlock* END ';'-> ^(VAR assigmentBlock*)
| methodDecl -> ^(METHOD methodDecl)
;
methodDecl
//: name=ID methodVar* ('->' type=ID)? ':' methodBlock* END ';'
// -> ^($name methodVar* ^(RETURN $type) methodBlock*)
: name=ID methodVar* -> ^($name methodVar*)
;
methodVar
: type=ID name=ID ','? -> ^(PARAMS $type $name)
;
This is what antlrworks shows
If anyone could help me i would be much obliged.
Don't do:
rather do:
I.e. the comma should be mandatory, not optional as you defined it did.