[jira] [Closed] (GROOVY-10179) STC: instanceof and for-in variable type

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

     [ https://issues.apache.org/jira/browse/GROOVY-10179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul King closed GROOVY-10179.
------------------------------

> STC: instanceof and for-in variable type
> ----------------------------------------
>
>                 Key: GROOVY-10179
>                 URL: https://issues.apache.org/jira/browse/GROOVY-10179
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static Type Checker
>    Affects Versions: 2.5.14, 3.0.8, 4.0.0-alpha-3
>            Reporter: Eric Milles
>            Assignee: Eric Milles
>            Priority: Minor
>             Fix For: 4.0.0-beta-1, 3.0.9, 2.5.16
>
>
> Variation of GROOVY-6240.  Consider the following:
> {code:groovy}
> @groovy.transform.TypeChecked
> void test(args) {
>   if (args instanceof Map) {
>     for (e in args) {
>       print "$e.key $e.value" // STC errors: No such property "key/value" for Object
>     }
>   }
> }
> test(a:1,b:2,c:3.14)
> {code}
> When the extra layer of the instanceof check is added, STC does not use Map type when inferring type of for-in variable "e".



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