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https://issues.apache.org/jira/browse/GROOVY-8243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16070345#comment-16070345
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Daniil Ovchinnikov commented on GROOVY-8243:
--------------------------------------------
If traits are not SAM candidates, please throw GroovyCastException on
assignment.
> SAM trait middle coercion via middle interface
> ----------------------------------------------
>
> Key: GROOVY-8243
> URL: https://issues.apache.org/jira/browse/GROOVY-8243
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 2.4.10
> Reporter: Daniil Ovchinnikov
>
> {code}
> trait T {
> abstract def foo(int i)
> def bar(double j) {
> println "bar $j"
> }
> }
> interface F extends T {}
> F t = { println "closure $it" }
> t.foo(42) // `closure 42`
> t.bar(43) // `closure 43.0`; should be `bar 43.0`
> {code}
> Changing variable type to {{T}} works as expected.
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