question on Kotlin generics if anyone thinks they ...
# announcementsh
Henry
09/21/2020, 1:12 PMquestion on Kotlin generics if anyone thinks they might be able to help! https://stackoverflow.com/questions/63992988/instantiating-classes-from-non-reified-type-parameters
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ephemient
09/21/2020, 1:32 PMJVM-specific: runtime types of objects are erased, but generic types on classes aren't
ephemient
09/21/2020, 1:33 PMh
Henry
09/21/2020, 1:33 PMinteresting
Henry
09/21/2020, 1:33 PMsadly that link only shows me a hello world
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ephemient
09/21/2020, 1:34 PMstrange, works for me, but let me copy paste the code here:
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Henry
09/21/2020, 1:34 PMthanks
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ephemient
09/21/2020, 1:34 PMUntitled
ephemient
09/21/2020, 1:35 PMoutputs:
Copy code
class java.lang.Integer
class java.lang.String
interface Foo
class Barh
Henry
09/21/2020, 1:36 PMah I hadn’t even thought to use reflection to get a reference to the class of the type parameter!
Henry
09/21/2020, 1:37 PMthat makes a lot of sense
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ephemient
09/21/2020, 1:37 PMit's definitely not foolproof. if you declare a generic subclass, this will fail
ephemient
09/21/2020, 1:38 PMbut in some restricted cases, it's useful
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Henry
09/21/2020, 1:38 PMindeed
Henry
09/21/2020, 1:38 PMthis use case is specific enough that it should be fine
Henry
09/21/2020, 2:04 PMwould you like the SO points for answering my question or are you happy or me to post your solution btw?
Henry
09/21/2020, 2:04 PMthanks again
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ephemient
09/21/2020, 2:50 PMI haven't used SO in ages but I logged in to post for you 🙂
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