Stanislav Ruban
42 lines
1.0 KiB
Kotlin
Vendored
42 lines
1.0 KiB
Kotlin
Vendored
// ISSUE: KT-55056
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// IGNORE_LIGHT_ANALYSIS
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// IGNORE_BACKEND_K1: ANY
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// REASON: red code (see corresponding diagnostic test)
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// IGNORE_BACKEND_K2: JVM_IR, WASM
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// REASON: run-time failure (java.lang.ClassCastException: TargetType cannot be cast to DifferentType @ Kt55056Kt$box$1.invoke)
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fun box(): String {
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build {
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setTypeVariable(TargetType())
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consumeDifferentType(extensionReplaceOutProjectedTypeVariable(DifferentType()))
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}
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return "OK"
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}
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class TargetType
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class DifferentType
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fun consumeDifferentType(value: DifferentType) {}
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class Buildee<TV> {
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fun setTypeVariable(value: TV) { storage = value }
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fun getTypeVariable(): TV = storage
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private var storage: TV = TargetType() as TV
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}
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fun <ETV> Buildee<out ETV>.extensionReplaceOutProjectedTypeVariable(value: ETV): ETV {
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this as Buildee<ETV>
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val temp = getTypeVariable()
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setTypeVariable(value)
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return temp
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}
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fun <PTV> build(instructions: Buildee<PTV>.() -> Unit): Buildee<PTV> {
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return Buildee<PTV>().apply(instructions)
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}
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