Zalim Bashorov
98 lines
1.9 KiB
Kotlin
Vendored
98 lines
1.9 KiB
Kotlin
Vendored
// IGNORE_INLINER: IR
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// FILE: 1.kt
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package foo
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fun fail(s: String): Nothing = throw Error(s)
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inline fun <T> depth1(a: Any?): T = a as T
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inline fun <T> depth2(a: Any?): T = depth1<T>(a)
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fun test() {
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val t11 = depth1<Int?>(null)
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if (t11 != null) fail("t11")
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val t12 = depth2<Int?>(null)
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if (t12 != null) fail("t12")
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val t21 = depth1<Int?>(functionThatReturnsNull())
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if (t21 != null) fail("t21")
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val t22 = depth2<Int?>(functionThatReturnsNull())
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if (t22 != null) fail("t22")
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val t31 = depth1<Int>(3311)
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if (t31 != 3311) fail("t31")
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val t32 = depth2<Int?>(33222)
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if (t32 != 33222) fail("t32")
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}
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// From KT-60496
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fun kt60496() {
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stupidRemembered = ComposerEmpty
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case1()
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stupidRemembered = ComposerEmpty
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case2()
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stupidRemembered = ComposerEmpty
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case3()
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val expectedInL = "BEFORE_CAST - null;case1;BEFORE_CAST - null;case2;BEFORE_CAST - kotlin.Unit;case3;"
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if (l != expectedInL) fail("Unexpected value for l:$l")
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}
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var l = ""
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fun log(t: String?) {
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l += t + ";"
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}
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fun case1() {
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var counter: Int? = remember { null }
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log("case1")
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}
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fun case2() {
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var counter: Int? = remember { functionThatReturnsNull() }
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log("case2")
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}
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fun case3() {
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var counter: Unit = remember { null }
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log("case3")
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}
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fun <T> functionThatReturnsNull(): T? = null
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inline fun <T> remember(crossinline calculation: () -> T): T =
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cache(false, calculation)
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inline fun <T> cache(invalid: Boolean, block: () -> T): T {
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@Suppress("UNCHECKED_CAST")
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return rememberedValue().let {
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if (invalid || it === ComposerEmpty) {
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val value = block()
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stupidRemembered = value
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value
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} else it
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}.also { log("BEFORE_CAST - $it") } as T
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}
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fun rememberedValue(): Any? {
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return stupidRemembered
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}
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val ComposerEmpty = Any()
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var stupidRemembered: Any? = ComposerEmpty
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// FILE: 2.kt
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package foo
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fun box(): String {
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test()
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kt60496()
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return "OK"
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}
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