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From "Daniel Sun (JIRA)" <>
Subject [jira] [Created] (GROOVY-8083) Fails to implement interface
Date Wed, 08 Feb 2017 08:05:41 GMT
Daniel Sun created GROOVY-8083:

             Summary: Fails to implement interface
                 Key: GROOVY-8083
             Project: Groovy
          Issue Type: Bug
    Affects Versions: 3.0
         Environment: java version "1.8.0_121"
            Reporter: Daniel Sun

I tried to extend GroovyCodeVisitor to support visiting lambda expression, but AstNodeToScriptVisitor
fails to implement the interface GroovyCodeVisitor. 

Even if visitLambdaExpression is implemented by AstNodeToScriptVisitor, but still failed to
compile, so I have to provide a default implementation for visitLambdaExpression method...

Error messages(
85: Can't have an abstract method in a non-abstract class. The class 'org.apache.groovy.parser.antlr4.util.AstNodeToScriptVisitor'
must be declared abstract or the method 'void visitLambdaExpression(org.codehaus.groovy.ast.expr.LambdaExpression)'
must be implemented.

 @ line 85, column 1.

   class AstNodeToScriptVisitor extends CompilationUnit.PrimaryClassNodeOperation implements
GroovyCodeVisitor, GroovyClassVisitor {


1 error


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