Expression Grammar [fatal] Error [message #1064855] |
Fri, 21 June 2013 12:06 |
Günther Fiedler Messages: 21 Registered: February 2013 |
Junior Member |
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Hello,
I´m having problems with my NOTExpression-Rule.
NotExpression returns Expression:
BitwiseXORExpression| ({NotExpression} '!' operand = BitwiseXORExpression)
;
BitwiseXORExpression returns Expression:
BitwiseORExpression ({BitwiseXORExpression.leftOperand=current}'^' rightOperand = BitwiseORExpression)*
;
By Generating the Xtext Artifacts i get this error:
[fatal] rule ruleNotExpression has non-LL(*) decision due to recursive rule invocations reachable from alts 1,2. Resolve by left-factoring or using syntactic predicates or using backtrack=true option.
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