[jira] [Updated] (GROOVY-10130) Flow typing does not work when && is combinded with instanceof

["Paul King (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GROOVY-10130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul King updated GROOVY-10130:
-------------------------------
    Fix Version/s: 4.0.2

> Flow typing does not work when && is combinded with instanceof
> --------------------------------------------------------------
>
>                 Key: GROOVY-10130
>                 URL: https://issues.apache.org/jira/browse/GROOVY-10130
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static compilation, Static Type Checker
>            Reporter: Stefanos Chaliasos
>            Assignee: Eric Milles
>            Priority: Major
>             Fix For: 4.0.2
>
>
> I have the following Groovy program.
> {code:groovy}
> @groovy.transform.TypeChecked
> class Test {
>   public void foo(Foo x) {
>     ((true && x instanceof Bar)) ? new Bar[]{x} : null
>   }
> }
> class Foo {}
> class Bar extends Foo {}
> {code}
> h2. Actual Behavior
> The program does not compile, and I get the following error.
> {code:java}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
> Test.groovy: 4: [Static type checking] - Cannot convert from Foo to Bar
>  @ line 4, column 46.
>     instanceof Bar)) ? new Bar[]{x} : null
>                                  ^
> 1 error
> {code}
> h2. Expected Behavior
> Compile successfully.
> h2. Comment
> This should be a regression bug because it works with 3.0.8 and 4.0.0-alpha-3.
> h2. Affected Version
> This programs have been tested with the compiler from the master (commit: 8ea882a587ce3183c95ea1bc19dfc44367dc292e).



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