| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.compose |
| |
| import kotlin.reflect.KClass |
| |
| /** |
| * @UnionType can be used when an attribute can be one of several different types. |
| * The annotation indicates that the Kotlin type has been expanded to a common |
| * subtype (often Any) for the purpose of accepting one of a multiplicity of |
| * subtypes. The @UnionType must specify the intended subtypes, which can then be enforced |
| * by the compiler. @UnionType is particularly useful when a composable function |
| * is wrapping a native View because it allows a composable to accept the multiplicity |
| * of types corresponding to the overloaded setters for that attribute. |
| */ |
| @MustBeDocumented |
| @Retention(AnnotationRetention.BINARY) |
| @Target(AnnotationTarget.TYPE, AnnotationTarget.TYPE_PARAMETER) |
| @ExperimentalComposeApi |
| annotation class UnionType(vararg val types: KClass<*>) |