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https://issues.apache.org/jira/browse/GROOVY-12561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18135354#comment-18135354
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ASF GitHub Bot commented on GROOVY-12561:
-----------------------------------------
testlens-app[bot] commented on PR #3090:
URL: https://github.com/apache/groovy/pull/3090#issuecomment-6530062886
## ✅ All tests passed ✅
🏷️ Commit: 8b73244656292674f3ba37b840c95c9d3b738814
▶️ Tests: 109131 executed
⚪️ Checks: 26/26 completed
---
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> SC: a closure assigned to a subscript or property of a functional interface
> type is stored unconverted
> ------------------------------------------------------------------------------------------------------
>
> Key: GROOVY-12561
> URL: https://issues.apache.org/jira/browse/GROOVY-12561
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation
> Affects Versions: 4.0.33, 5.0.8, 6.0.0
> Reporter: Scott Murphy Heiberg
> Priority: Major
>
> Under {{@CompileStatic}}, a closure assigned to a subscript or a property
> whose type is a functional interface is stored as the closure itself when the
> method that stores it declares its parameter with a type parameter: {{putAt}}
> of a {{Map<String, Function<String, String>>}} or {{List<Supplier<String>>}},
> or the setter or field of a {{Holder<T>}} property for a
> {{Holder<Supplier<String>>}}. A later call of the interface method fails:
> {code:groovy}
> import java.util.function.Function
> @groovy.transform.CompileStatic
> Map<String, Function<String, String>> make() {
> Map<String, Function<String, String>> map = [:]
> map['shout'] = { String s -> s + '!' }
> map
> }
> make().shout.apply('hi') // MissingMethodException: No signature of method:
> apply ... (a Closure was stored)
> {code}
> The same holds for {{map?['k'] = ...}}, {{map.k = ...}}, {{holder.value =
> ...}}, {{box.@field = ...}} and the named constructor argument {{new
> Holder<Supplier<String>>(value: { ... })}}. Assigning to a variable of the
> interface type converts the closure.
> Expected: the closure is converted to the type of the subscript or property,
> as for a variable, and the value of the assignment is the converted closure.
> PR: https://github.com/apache/groovy/pull/3090
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