Files
kotlin/compiler/testData/diagnostics/testsWithStdLib/experimental/usageNotAsAnnotation.kt
Alexander Udalov 143c3ccb95 Disallow usages of experimental markers as qualifiers
Only allow explicit imports of markers, but not of nested classes
declared in them
2018-05-07 11:37:31 +02:00

78 lines
2.8 KiB
Kotlin
Vendored

// !LANGUAGE: +NestedClassesInAnnotations
// !USE_EXPERIMENTAL: kotlin.Experimental
// !DIAGNOSTICS: -UNUSED_PARAMETER
// FILE: api.kt
package test
import kotlin.reflect.KClass
// Usages in import should be OK
import kotlin.Experimental.Level.*
import kotlin.Experimental.Level
import kotlin.Experimental
// Usages with FQ names should be OK
@kotlin.Experimental(kotlin.Experimental.Level.ERROR)
annotation class M
// Usages as types should be errors
fun f1(e: <!EXPERIMENTAL_CAN_ONLY_BE_USED_AS_ANNOTATION!>Experimental<!>) {}
fun f2(u: <!EXPERIMENTAL_CAN_ONLY_BE_USED_AS_ANNOTATION!>UseExperimental<!>?) {}
typealias Experimental0 = <!EXPERIMENTAL_CAN_ONLY_BE_USED_AS_ANNOTATION!>Experimental<!>
typealias UseExperimental0 = <!EXPERIMENTAL_CAN_ONLY_BE_USED_AS_ANNOTATION!>UseExperimental<!>
fun f3(e: Experimental0 /* TODO */) {}
fun f4(u: UseExperimental0 /* TODO */) {}
// Usages as ::class literals should be errors
annotation class VarargKClasses(vararg val k: KClass<*>)
@VarargKClasses(
<!EXPERIMENTAL_CAN_ONLY_BE_USED_AS_ANNOTATION!>Experimental<!>::class,
<!EXPERIMENTAL_CAN_ONLY_BE_USED_AS_ANNOTATION!>UseExperimental<!>::class,
kotlin.<!EXPERIMENTAL_CAN_ONLY_BE_USED_AS_ANNOTATION!>Experimental<!>::class,
kotlin.<!EXPERIMENTAL_CAN_ONLY_BE_USED_AS_ANNOTATION!>UseExperimental<!>::class
)
fun f5() {}
// Usages of markers as types should be errors
@Experimental
annotation class Marker {
class NestedClass
companion object {
const val value = 42
}
}
fun f6(m: <!EXPERIMENTAL_MARKER_CAN_ONLY_BE_USED_AS_ANNOTATION_OR_ARGUMENT_IN_USE_EXPERIMENTAL!>Marker<!>) {}
fun f7(): List<<!EXPERIMENTAL_MARKER_CAN_ONLY_BE_USED_AS_ANNOTATION_OR_ARGUMENT_IN_USE_EXPERIMENTAL!>Marker<!>>? = null
fun f8(): test.<!EXPERIMENTAL_MARKER_CAN_ONLY_BE_USED_AS_ANNOTATION_OR_ARGUMENT_IN_USE_EXPERIMENTAL!>Marker<!>? = null
typealias Marker0 = <!EXPERIMENTAL_MARKER_CAN_ONLY_BE_USED_AS_ANNOTATION_OR_ARGUMENT_IN_USE_EXPERIMENTAL!>Marker<!>
fun f9(m: <!EXPERIMENTAL_MARKER_CAN_ONLY_BE_USED_AS_ANNOTATION_OR_ARGUMENT_IN_USE_EXPERIMENTAL!>Marker0<!>) {}
// Usages of markers as qualifiers are errors as well (we can lift this restriction for select cases)
fun f10(m: <!EXPERIMENTAL_MARKER_CAN_ONLY_BE_USED_AS_ANNOTATION_OR_ARGUMENT_IN_USE_EXPERIMENTAL!>Marker<!>.NestedClass) {
<!EXPERIMENTAL_MARKER_CAN_ONLY_BE_USED_AS_ANNOTATION_OR_ARGUMENT_IN_USE_EXPERIMENTAL!>Marker<!>.value
}
// FILE: usage-from-other-file.kt
// Usages of markers in import statements should be OK, but not as qualifiers to import their nested classes
import test.Marker
import test.<!EXPERIMENTAL_MARKER_CAN_ONLY_BE_USED_AS_ANNOTATION_OR_ARGUMENT_IN_USE_EXPERIMENTAL!>Marker<!>.NestedClass
import test.<!EXPERIMENTAL_MARKER_CAN_ONLY_BE_USED_AS_ANNOTATION_OR_ARGUMENT_IN_USE_EXPERIMENTAL!>Marker<!>.Companion