JvmSynchronizationHelper.kt
/*
* Copyright 2020 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.ui.util
import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.InvocationKind
import kotlin.contracts.contract
/**
* [kotlin.synchronized][synchronized] is deprecated, and the build fails if we use
* [kotlin.synchronized][synchronized] along with the IR compiler. As a workaround, we have this
* function here, which is in a module that doesn't use the IR Compiler.
*/
@OptIn(ExperimentalContracts::class)
fun <T> synchronized(lock: Any, block: () -> T): T {
contract {
callsInPlace(block, InvocationKind.EXACTLY_ONCE)
}
return kotlin.synchronized(lock, block)
}