Introduce Common AutoCloseable & use #KT-31066

Co-authored-by: Ilya Gorbunov <Ilya.Gorbunov@jetbrains.com>

Merge-request: KT-MR-8113
Merged-by: Abduqodiri Qurbonzoda <abduqodiri.qurbonzoda@jetbrains.com>
This commit is contained in:
Abduqodiri Qurbonzoda
2022-12-27 11:50:22 +00:00
committed by Space Team
parent 70cd547c26
commit fff593492d
9 changed files with 263 additions and 90 deletions
@@ -0,0 +1,47 @@
/*
* Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package kotlin
import kotlin.contracts.InvocationKind
import kotlin.contracts.contract
@SinceKotlin("1.8")
@ExperimentalStdlibApi
public actual interface AutoCloseable {
public actual fun close(): Unit
}
@SinceKotlin("1.8")
@ExperimentalStdlibApi
@kotlin.internal.InlineOnly
public actual inline fun <T : AutoCloseable?, R> T.use(block: (T) -> R): R {
contract {
callsInPlace(block, InvocationKind.EXACTLY_ONCE)
}
var exception: Throwable? = null
try {
return block(this)
} catch (e: Throwable) {
exception = e
throw e
} finally {
this.closeFinally(exception)
}
}
@ExperimentalStdlibApi
@SinceKotlin("1.8")
@PublishedApi
internal fun AutoCloseable?.closeFinally(cause: Throwable?) = when {
this == null -> {}
cause == null -> close()
else ->
try {
close()
} catch (closeException: Throwable) {
cause.addSuppressed(closeException)
}
}