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mirai-core-utils/src/commonMain/kotlin/ResultExtensions.kt
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| @@ -0,0 +1,153 @@ | ||
| /* | ||
| * Copyright 2019-2021 Mamoe Technologies and contributors. | ||
| * | ||
| * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证. | ||
| * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link. | ||
| * | ||
| * https://github.com/mamoe/mirai/blob/master/LICENSE | ||
| */ | ||
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| @file:JvmMultifileClass | ||
| @file:JvmName("MiraiUtils") | ||
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| package net.mamoe.mirai.utils | ||
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| import kotlin.reflect.KClass | ||
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| @Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE", "RESULT_CLASS_IN_RETURN_TYPE") | ||
| @kotlin.internal.InlineOnly | ||
| @kotlin.internal.LowPriorityInOverloadResolution | ||
| public inline fun <R, T : R> Result<T>.recoverCatchingSuppressed(transform: (exception: Throwable) -> R): Result<R> { | ||
| return when (val exception = exceptionOrNull()) { | ||
| null -> this | ||
| else -> { | ||
| try { | ||
| Result.success(transform(exception)) | ||
| } catch (e: Throwable) { | ||
| e.addSuppressed(exception) | ||
| Result.failure(e) | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| @Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE", "RESULT_CLASS_IN_RETURN_TYPE") | ||
| @kotlin.internal.InlineOnly | ||
| @kotlin.internal.LowPriorityInOverloadResolution | ||
| public inline fun <R> retryCatching( | ||
| n: Int, | ||
| except: KClass<out Throwable>? = null, | ||
| block: (count: Int, lastException: Throwable?) -> R, | ||
| ): Result<R> { | ||
| require(n >= 0) { | ||
| "param n for retryCatching must not be negative" | ||
| } | ||
| var exception: Throwable? = null | ||
| repeat(n) { | ||
| try { | ||
| return Result.success(block(it, exception)) | ||
| } catch (e: Throwable) { | ||
| if (except?.isInstance(e) == true) { | ||
| return Result.failure(e) | ||
| } | ||
| exception?.addSuppressed(e) | ||
| exception = e | ||
| } | ||
| } | ||
| return Result.failure(exception!!) | ||
| } | ||
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| @Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE", "RESULT_CLASS_IN_RETURN_TYPE") | ||
| @kotlin.internal.InlineOnly | ||
| @kotlin.internal.LowPriorityInOverloadResolution | ||
| public inline fun <R> retryCatchingExceptions( | ||
| n: Int, | ||
| except: KClass<out Exception>? = null, | ||
| block: (count: Int, lastException: Throwable?) -> R, | ||
| ): Result<R> { | ||
| require(n >= 0) { | ||
| "param n for retryCatching must not be negative" | ||
| } | ||
| var exception: Throwable? = null | ||
| repeat(n) { | ||
| try { | ||
| return Result.success(block(it, exception)) | ||
| } catch (e: Exception) { | ||
| if (except?.isInstance(e) == true) { | ||
| return Result.failure(e) | ||
| } | ||
| exception?.addSuppressed(e) | ||
| exception = e | ||
| } | ||
| } | ||
| return Result.failure(exception!!) | ||
| } | ||
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| @Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE", "RESULT_CLASS_IN_RETURN_TYPE") | ||
| @kotlin.internal.InlineOnly | ||
| public inline fun <R> retryCatching( | ||
| n: Int, | ||
| except: KClass<out Throwable>? = null, | ||
| block: () -> R, | ||
| ): Result<R> { | ||
| require(n >= 0) { | ||
| "param n for retryCatching must not be negative" | ||
| } | ||
| var exception: Throwable? = null | ||
| repeat(n) { | ||
| try { | ||
| return Result.success(block()) | ||
| } catch (e: Throwable) { | ||
| if (except?.isInstance(e) == true) { | ||
| return Result.failure(e) | ||
| } | ||
| exception?.addSuppressed(e) | ||
| exception = e | ||
| } | ||
| } | ||
| return Result.failure(exception!!) | ||
| } | ||
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| @Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE", "RESULT_CLASS_IN_RETURN_TYPE") | ||
| @kotlin.internal.InlineOnly | ||
| public inline fun <R> retryCatchingExceptions( | ||
| n: Int, | ||
| except: KClass<out Exception>? = null, | ||
| block: () -> R, | ||
| ): Result<R> { | ||
| require(n >= 0) { | ||
| "param n for retryCatching must not be negative" | ||
| } | ||
| var exception: Throwable? = null | ||
| repeat(n) { | ||
| try { | ||
| return Result.success(block()) | ||
| } catch (e: Exception) { | ||
| if (except?.isInstance(e) == true) { | ||
| return Result.failure(e) | ||
| } | ||
| exception?.addSuppressed(e) | ||
| exception = e | ||
| } | ||
| } | ||
| return Result.failure(exception!!) | ||
| } | ||
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| @Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE", "RESULT_CLASS_IN_RETURN_TYPE") | ||
| @kotlin.internal.InlineOnly | ||
| public inline fun <R> runCatchingExceptions(block: () -> R): Result<R> { | ||
| return try { | ||
| Result.success(block()) | ||
| } catch (e: Exception) { | ||
| Result.failure(e) | ||
| } | ||
| } | ||
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| public inline fun <R> Result<R>.mapFailure( | ||
| block: (Throwable) -> Throwable, | ||
| ): Result<R> = onFailure { | ||
| return Result.failure(block(it)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| /* | ||
| * Copyright 2019-2021 Mamoe Technologies and contributors. | ||
| * | ||
| * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证. | ||
| * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link. | ||
| * | ||
| * https://github.com/mamoe/mirai/blob/master/LICENSE | ||
| */ | ||
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| @file:JvmMultifileClass | ||
| @file:JvmName("MiraiUtils") | ||
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| package net.mamoe.mirai.utils | ||
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| import java.util.concurrent.ConcurrentHashMap | ||
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| public fun systemProp(name: String, default: String): String = | ||
| System.getProperty(name, default) ?: default | ||
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| public fun systemProp(name: String, default: Boolean): Boolean = | ||
| System.getProperty(name, default.toString())?.toBoolean() ?: default | ||
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| public fun systemProp(name: String, default: Long): Long = | ||
| System.getProperty(name, default.toString())?.toLongOrNull() ?: default | ||
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| private val debugProps = ConcurrentHashMap<String, Boolean>() | ||
| public fun Any?.toDebugString(prop: String, default: Boolean = false): String { | ||
| if (this == null) return "null" | ||
| val debug = debugProps.getOrPut(prop) { systemProp(prop, default) } | ||
| return if (debug) { | ||
| "${this::class.simpleName}($this)" | ||
| } else { | ||
| "${this::class.simpleName}" | ||
| } | ||
| } |