Files
kotlin-fork/compiler/testData/codegen/box/casts/functions/safeAsFunKSmall.kt
T
Svyatoslav Kuzmich abf70a586c [Wasm] stdlib API: make kotlin.assert internal
Being disabled by default
 and not well-documented, these functions cause confusion among early
 adopters as to why their code don't work properly.

Assert APIs need a proper design across Kotlin platforms.
 Since APIs are not available in common code and K/JS, it is premature
  to have such a general feature in a new experimental platform.

Compiler tests:
* Mute tests that rely on assert.
* Replace JVM-specific assert calls with require calls and unmute passed K/JS tests.

Merge-request: KT-MR-8636
Merged-by: Svyatoslav Kuzmich <svyatoslav.kuzmich@jetbrains.com>
2023-02-02 07:06:12 +00:00

42 lines
1.1 KiB
Kotlin
Vendored

// IGNORE_BACKEND: JS_IR
// IGNORE_BACKEND: JS_IR_ES6
// TODO: muted automatically, investigate should it be ran for JS or not
// IGNORE_BACKEND: JS
// WITH_STDLIB
fun fn0() {}
fun fn1(x: Any) {}
inline fun safeAsReturnsNull(operation: String, cast: () -> Any?) {
try {
val x = cast()
require(x == null) { "$operation: should return null, got $x" }
}
catch (e: Throwable) {
throw AssertionError("$operation: should not throw exceptions, got $e")
}
}
inline fun safeAsReturnsNonNull(operation: String, cast: () -> Any?) {
try {
val x = cast()
require(x != null) { "$operation: should return non-null" }
}
catch (e: Throwable) {
throw AssertionError("$operation: should not throw exceptions, got $e")
}
}
fun box(): String {
val f0 = ::fn0 as Any
val f1 = ::fn1 as Any
safeAsReturnsNonNull("f0 as? Function0<*>") { f0 as? Function0<*> }
safeAsReturnsNull("f0 as? Function1<*, *>") { f0 as? Function1<*, *> }
safeAsReturnsNull("f1 as? Function0<*>") { f1 as? Function0<*> }
safeAsReturnsNonNull("f1 as? Function1<*, *>") { f1 as? Function1<*, *> }
return "OK"
}