1 /* 2 * Copyright 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package androidx.compose.runtime.internal 18 19 import androidx.compose.runtime.ComposeCompilerApi 20 21 /** 22 * This annotation is applied to the FunctionKeyMeta classes created by the Compose Compiler. These 23 * classes will have multiple of these annotations, each one corresponding to a single composable 24 * function. The annotation holds some metadata about the function itself and is intended to be used 25 * to provide information useful to tooling. 26 * 27 * @param key The key used for the function's group. 28 * @param startOffset The startOffset of the function in the source file at the time of compilation. 29 * @param endOffset The startOffset of the function in the source file at the time of compilation. 30 */ 31 @ComposeCompilerApi 32 @Target(AnnotationTarget.CLASS, AnnotationTarget.FUNCTION) 33 @Retention(AnnotationRetention.RUNTIME) 34 @Repeatable 35 annotation class FunctionKeyMeta(val key: Int, val startOffset: Int, val endOffset: Int) 36 37 /** 38 * This annotation is applied to the FunctionKeyMeta classes created by the Compose Compiler. This 39 * is intended to be used to provide information useful to tooling. 40 * 41 * @param file The file path of the file the associated class was produced for 42 */ 43 @ComposeCompilerApi 44 @Target(AnnotationTarget.CLASS) 45 @Retention(AnnotationRetention.RUNTIME) 46 annotation class FunctionKeyMetaClass(val file: String) 47