Fix inferring template types in ClosureType #921
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ondrejmirtes
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Jan 13, 2022
src/Type/ClosureType.php
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Hi, what about the same change and test in CallableType.php? :)
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But I thought that can be a valid use case? new Foo which is ObjectType, can be callable, and we should try to infer template types. I did this for ClosureType because nothing else can be Closure other than Closure 😄
Or did I understand this wrong?
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I want you to write a test and implementation for this case :)
/**
*
* @template TGetDefault
* @template TKey
*
* @param TKey $key
* @param TGetDefault|(callable(): TGetDefault) $default
* @return TKey|TGetDefault
*/
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I added the test cases. But the same change did not work well in CallableType. Handled a bit differently and it works now.
Also added a test case with an invokable class, seems to work as expected 👍🏽
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This PR fixes an issue that can be seen here and here.
Since there are separate types as
ClosureTypeandCallableTypeI think it makes sense forClosureTypeto only infer template types from it's own kind. Cause nothing else can really be a closure. Whencallableis used instead ofClosurein the playground examples, it'll still be inferred asmixed.I hope this fix makes sense. If you prefer any other way that fixes the issues (both in tests and in playground links) I can adjust to that 👍🏽