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Make error message for captured generic type parameters much more str… #1863

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merged 1 commit into from Feb 17, 2022
Merged

Make error message for captured generic type parameters much more str… #1863

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5 changes: 5 additions & 0 deletions core/commonMain/src/kotlinx/serialization/internal/Platform.common.kt
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Expand Up @@ -99,6 +99,11 @@ internal expect fun KClass<*>.platformSpecificSerializerNotRegistered(): Nothing
@Suppress("UNCHECKED_CAST")
internal fun KType.kclass() = when (val t = classifier) {
is KClass<*> -> t
is KTypeParameter -> {
error("Captured type paramerer $t from generic non-reified function. " +
"Such functionality cannot be supported as $t is erased, either specify serializer explicitly or make " +
"calling function inline with reified $t")
}
else -> error("Only KClass supported as classifier, got $t")
} as KClass<Any>

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