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From "Jochen Theodorou (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GROOVY-6809) VerifyError With Inner Class
Date Mon, 13 Feb 2017 15:10:42 GMT

    [ https://issues.apache.org/jira/browse/GROOVY-6809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15863799#comment-15863799
] 

Jochen Theodorou commented on GROOVY-6809:
------------------------------------------

I think the base issue is a not set static context, or that fact being ignored. Related example:
{code:Java}
​class A {A(x){}}
class B extends A {
  B(){ 
    super (new Object() {}​)
  }
}

new B()​
{code}
fails with a VerifyError, because the compiler tries to use "this" for the anonymous inner
class in the super call. But at this time, there is no initialized "this". But unlike A.this
in a previous comment, which I think should fail, the code example in this comment is supposed
to work by just not using the "this"-context... in at least in a static compiler any call
to outside "this" from the inner class is supposed to cause a compilation error as well.

> VerifyError With Inner Class 
> -----------------------------
>
>                 Key: GROOVY-6809
>                 URL: https://issues.apache.org/jira/browse/GROOVY-6809
>             Project: Groovy
>          Issue Type: Bug
>          Components: Compiler
>    Affects Versions: 2.3.0, 2.4.0-beta-3
>            Reporter: Jeff Brown
>
> The following code compiles but throws a VerifyError at runtime:
> {code:title=Test.groovy|borderStyle=solid}
> class Test {
>     static void main(String[] args) {
>         def a = new A()
>     }
>     static class A {
>         A() {
>             def b = new B()
>         }
>         void sayA() { println 'saying A' }
>         class B extends A {
>             public B() {
>                 super(A.this)
>                 sayA()
>             }
>         }
>     }
> }
> {code}
> I didn't go back through versions but I tested with 2.3.0 and that shows the problem.
> {noformat}
> Caught: java.lang.VerifyError: (class: Test$A$B, method: <init> signature: (LTest$A;)V)
Expecting to find object/array on stack
> java.lang.VerifyError: (class: Test$A$B, method: <init> signature: (LTest$A;)V)
Expecting to find object/array on stack
> 	at Test$A.<init>(Test.groovy:9)
> 	at Test.main(Test.groovy:4)
> {noformat}



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