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From "Paul King (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GROOVY-9059) Failed to parse/compile generic methods with "extends"
Date Sat, 30 Mar 2019 07:19:00 GMT

    [ https://issues.apache.org/jira/browse/GROOVY-9059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16805694#comment-16805694
] 

Paul King commented on GROOVY-9059:
-----------------------------------

No problems, I agree we need to fix this. I presume other's have found the workaround since
I believe this problem has been around for a while, but we should get rid of the need for
the workaround.

> Failed to parse/compile generic methods with "extends"
> ------------------------------------------------------
>
>                 Key: GROOVY-9059
>                 URL: https://issues.apache.org/jira/browse/GROOVY-9059
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static compilation
>    Affects Versions: 2.4.16, 3.0.0-alpha-4, 2.5.6
>            Reporter: Xiaoguang Wang
>            Priority: Major
>         Attachments: image-2019-03-30-13-10-20-819.png
>
>
>  
> {code:java}
> import groovy.transform.CompileStatic
> // This bug affects: groovy-2.4.16, groovy-2.5.6, groovy-3.0.0-alpha-4
> // This bug also affect IDEA's syntax parser
> interface X<T> {
>     // Intellij IDEA reports that 'public' is not necessary
>     // BUT without the 'public' modifier, there is a syntax error
>     public <T> T foo(T o);
> }
> interface Y<T> {
>     public <O extends T> O foo(O o);
> }
> @CompileStatic
> class TestGroovyGeneric {
>     static void main(String[] args) {
>         def x = new X<String>() {
>             // it compiles
>             // BUT: Intellij IDEA reports: ERROR: Method 'foo' is not implemented
>             @Override
>             String foo(String o) { return o }
>         }
>         // Strangely, such code compiles
>         // BUT: Intellij IDEA reports: ERROR: Method 'foo' is not implemented
>         def y1 = new Y<String>() {
>             @Override
>             public <String> String foo(String o) { return o }
>         }
>         // Can not compile:
>         // BUT: Intellij IDEA reports no error ....
>         def y2 = new Y<String>() {
>             @Override
>             String foo(String o) { return o }
>         }
>     }
> }
> {code}
> !image-2019-03-30-13-10-20-819.png!
>  



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