// ISSUE: KT-57834 // CHECK_TYPE_WITH_EXACT fun test() { val buildee = build { setTypeVariable(TargetType()) consume(getTypeVariable()) } // exact type equality check — turns unexpected compile-time behavior into red code // considered to be non-user-reproducible code for the purposes of these tests checkExactType>(buildee) } class TargetType class DifferentType fun consume(value: TargetType) {} fun consume(value: DifferentType) {} class Buildee { fun setTypeVariable(value: TV) { storage = value } fun getTypeVariable(): TV = storage private var storage: TV = null!! } fun build(instructions: Buildee.() -> Unit): Buildee { return Buildee().apply(instructions) }