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From "Paul King (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GROOVY-8764) Closure inside an anonymous class uses wrong outside class instance with @CS
Date Mon, 08 Oct 2018 23:56:00 GMT

    [ https://issues.apache.org/jira/browse/GROOVY-8764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16642618#comment-16642618
] 

Paul King commented on GROOVY-8764:
-----------------------------------

Workaround is to prefix the method call, e.g. {{this.println}} instead of {{println}}:
{code:java}
import groovy.transform.*

@CompileStatic
class GroovyTest {
    public String foo = 'FOO'
    void test() {
        new Runnable() {
            void run() {
                def c = {
                    this.println foo
                }
                c()
            }
        }.run()
    }
}

new GroovyTest().test()
{code}

> Closure inside an anonymous class uses wrong outside class instance with @CS
> ----------------------------------------------------------------------------
>
>                 Key: GROOVY-8764
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8764
>             Project: Groovy
>          Issue Type: Bug
>          Components: Compiler, Static compilation
>    Affects Versions: 2.4.15, 3.0.0-alpha-3, 2.5.2
>            Reporter: Xiaoguang Wang
>            Priority: Major
>
> This bug only occurs with @ComplieStatic
>  Affects 2.4/2.5/3.0
>  
> {code:java}
> @CompileStatic
> class GroovyTest {
>     private String foo
>     void test() {
>         new Runnable() {
>             void run() {
>                 def c = {
>                     foo
>                 }
>                 c()
>             }
>         } .run()
>     }
>     static void main(String ...args) {
>         new GroovyTest().test()
>     }
> }
> {code}
> Crash:
> {code:java}
> Exception in thread "main" java.lang.ClassCastException: com.test.spring4mvc.controller.GroovyTest$1
cannot be cast to com.test.spring4mvc.controller.GroovyTest
>     at com.test.spring4mvc.controller.GroovyTest$1$_run_closure1.doCall(GroovyTest.groovy)
>     at com.test.spring4mvc.controller.GroovyTest$1$_run_closure1.call(GroovyTest.groovy)
>     at com.test.spring4mvc.controller.GroovyTest$1.run(GroovyTest.groovy:16)
>     at com.test.spring4mvc.controller.GroovyTest.test(GroovyTest.groovy:11)
>     at com.test.spring4mvc.controller.GroovyTest.main(GroovyTest.groovy:22)
> {code}



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