[ https://issues.apache.org/jira/browse/GROOVY-8083?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Sun closed GROOVY-8083. ------------------------------ Resolution: Cannot Reproduce > Fails to implement interface > ---------------------------- > > Key: GROOVY-8083 > URL: https://issues.apache.org/jira/browse/GROOVY-8083 > Project: Groovy > Issue Type: Bug > Components: Compiler > Affects Versions: 3.0.0-alpha-1 > Environment: java version "1.8.0_121" > Reporter: Daniel Sun > Priority: Major > > I tried to extend GroovyCodeVisitor to support visiting lambda expression( > https://github.com/danielsun1106/groovy/commit/609319ba60d6198e96028659461f080e58965aa6 > ), but AstNodeToScriptVisitor fails to implement the interface > GroovyCodeVisitor. > Even if visitLambdaExpression is implemented by AstNodeToScriptVisitor( > https://github.com/danielsun1106/groovy/commit/17c6bf12a096fda47d956035f84999c9666b14af > ), but still failed to compile, so I have to provide a default > implementation for visitLambdaExpression method( > https://github.com/danielsun1106/groovy/commit/cfb3e50df5490a91099cfc8cf1b9f12a9d891108 > )... > Error messages( https://travis-ci.org/danielsun1106/groovy/builds/199517082 ): > {code} > /home/travis/build/danielsun1106/groovy/subprojects/groovy-parser-antlr4/src/test/groovy/org/apache/groovy/parser/antlr4/util/AstDumper.groovy: > 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 > FAILED > {code} -- This message was sent by Atlassian Jira (v8.20.1#820001)