1 /*
2  * Copyright (C) 2022 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 com.android.settingslib.spa.framework.compose
18 
19 import android.util.Log
20 import androidx.compose.runtime.Composable
21 import androidx.compose.runtime.SideEffect
22 import androidx.compose.runtime.remember
23 
24 const val ENABLE_LOG_COMPOSITIONS = false
25 
26 data class LogCompositionsRef(var count: Int)
27 
28 // Note the inline function below which ensures that this function is essentially
29 // copied at the call site to ensure that its logging only recompositions from the
30 // original call site.
31 @Suppress("NOTHING_TO_INLINE")
32 @Composable
LogCompositionsnull33 inline fun LogCompositions(tag: String, msg: String) {
34     if (ENABLE_LOG_COMPOSITIONS) {
35         val ref = remember { LogCompositionsRef(0) }
36         SideEffect { ref.count++ }
37         Log.d(tag, "Compositions $msg: ${ref.count}")
38     }
39 }
40