[jira] [Closed] (GROOVY-8260) Static compilation requires casting inside instanceof check

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

     [ https://issues.apache.org/jira/browse/GROOVY-8260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul King closed GROOVY-8260.
-----------------------------

> Static compilation requires casting inside instanceof check
> -----------------------------------------------------------
>
>                 Key: GROOVY-8260
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8260
>             Project: Groovy
>          Issue Type: Bug
>          Components: Compiler
>    Affects Versions: 2.4.12
>         Environment: macOS JDK 1.8
>            Reporter: James Kleeh
>            Assignee: Paul King
>            Priority: Major
>             Fix For: 2.4.13
>
>
> There are many times I find myself having to cast variables directly inside an {{instanceof Class}} check.
> In addition, I have found a specific problem with a generic {{<T extends SomeClass>}} where a method in the class that returns {{T}}, Groovy believes a collection is being returned. This is the line in question: https://github.com/grails/gorm-graphql/blob/ea6887bef0ced75d9cc0d01dc7b94d4fc0520266/core/src/main/groovy/org/grails/gorm/graphql/fetcher/impl/EntityDataFetcher.groovy#L45
> The goal of this issue is to have the following codebase compile without changes.
> {{git clone -b broken_compilation https://github.com/grails/gorm-graphql}}
> Attempt to compile with {{./gradlew clean classes}}



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