mirror of
https://github.com/InsanusMokrassar/MicroUtils.git
synced 2024-11-22 16:23:50 +00:00
small improvements
This commit is contained in:
parent
93b054d55e
commit
a6905e73cb
@ -0,0 +1,44 @@
|
||||
package dev.inmo.micro_utils.coroutines
|
||||
|
||||
import kotlin.coroutines.CoroutineContext
|
||||
import kotlin.coroutines.coroutineContext
|
||||
|
||||
typealias ExceptionHandler<T> = suspend (Throwable) -> T
|
||||
|
||||
/**
|
||||
* This instance will be used in all calls of [safely] where exception handler has not been passed
|
||||
*/
|
||||
var defaultSafelyExceptionHandler: ExceptionHandler<Nothing> = { throw it }
|
||||
|
||||
/**
|
||||
* This instance will be used in all calls of [safelyWithoutExceptions] as an exception handler for [safely] call
|
||||
*/
|
||||
var defaultSafelyWithoutExceptionHandler: ExceptionHandler<Unit> = {
|
||||
try {
|
||||
defaultSafelyExceptionHandler(it)
|
||||
} catch (e: Throwable) {
|
||||
// do nothing
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* This key can (and will) be used to get [ContextSafelyExceptionHandler] from [coroutineContext] of suspend functions
|
||||
* and in [ContextSafelyExceptionHandler] for defining of its [CoroutineContext.Element.key]
|
||||
*
|
||||
* @see safelyWithContextExceptionHandler
|
||||
* @see ContextSafelyExceptionHandler
|
||||
*/
|
||||
object ContextSafelyExceptionHandlerKey : CoroutineContext.Key<ContextSafelyExceptionHandler>
|
||||
|
||||
/**
|
||||
* [ExceptionHandler] wrapper which was created to make possible to use [handler] across all coroutines calls
|
||||
*
|
||||
* @see safelyWithContextExceptionHandler
|
||||
* @see ContextSafelyExceptionHandlerKey
|
||||
*/
|
||||
class ContextSafelyExceptionHandler(
|
||||
val handler: ExceptionHandler<Unit>
|
||||
) : CoroutineContext.Element {
|
||||
override val key: CoroutineContext.Key<*>
|
||||
get() = ContextSafelyExceptionHandlerKey
|
||||
}
|
@ -4,46 +4,17 @@ import kotlinx.coroutines.*
|
||||
import kotlin.coroutines.CoroutineContext
|
||||
import kotlin.coroutines.coroutineContext
|
||||
|
||||
typealias ExceptionHandler<T> = suspend (Throwable) -> T
|
||||
|
||||
/**
|
||||
* This instance will be used in all calls of [safely] where exception handler has not been passed
|
||||
*/
|
||||
var defaultSafelyExceptionHandler: ExceptionHandler<Nothing> = { throw it }
|
||||
|
||||
/**
|
||||
* This instance will be used in all calls of [safelyWithoutExceptions] as an exception handler for [safely] call
|
||||
*/
|
||||
var defaultSafelyWithoutExceptionHandler: ExceptionHandler<Unit> = {
|
||||
try {
|
||||
defaultSafelyExceptionHandler(it)
|
||||
} catch (e: Throwable) {
|
||||
// do nothing
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* This key can (and will) be used to get [ContextSafelyExceptionHandler] from [coroutineContext] of suspend functions
|
||||
* and in [ContextSafelyExceptionHandler] for defining of its [CoroutineContext.Element.key]
|
||||
* Launching [block] in [runCatching]. In case of failure, it will:
|
||||
*
|
||||
* @see safelyWithContextExceptionHandler
|
||||
* @see ContextSafelyExceptionHandler
|
||||
*/
|
||||
object ContextSafelyExceptionHandlerKey : CoroutineContext.Key<ContextSafelyExceptionHandler>
|
||||
|
||||
/**
|
||||
* [ExceptionHandler] wrapper which was created to make possible to use [handler] across all coroutines calls
|
||||
* * Try to get [ContextSafelyExceptionHandler] from current [coroutineContext] and call its
|
||||
* [ContextSafelyExceptionHandler.handler] invoke. **Thrown exception from its handler
|
||||
* will pass out of [runCatchingSafely]**
|
||||
* * Execute [onException] inside of new [runCatching] and return its result. Throws exception
|
||||
* will be caught by [runCatching] and wrapped in [Result]
|
||||
*
|
||||
* @see safelyWithContextExceptionHandler
|
||||
* @see ContextSafelyExceptionHandlerKey
|
||||
* @return [Result] with result of [block] if no exceptions or [Result] from [onException] execution
|
||||
*/
|
||||
class ContextSafelyExceptionHandler(
|
||||
val handler: ExceptionHandler<Unit>
|
||||
) : CoroutineContext.Element {
|
||||
override val key: CoroutineContext.Key<*>
|
||||
get() = ContextSafelyExceptionHandlerKey
|
||||
}
|
||||
|
||||
suspend inline fun <T> runCatchingSafely(
|
||||
onException: ExceptionHandler<T>,
|
||||
block: suspend () -> T
|
||||
@ -58,10 +29,20 @@ suspend inline fun <T> runCatchingSafely(
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Launching [runCatchingSafely] with [defaultSafelyExceptionHandler] as `onException` parameter
|
||||
*/
|
||||
suspend inline fun <T> runCatchingSafely(
|
||||
block: suspend () -> T
|
||||
): Result<T> = runCatchingSafely(defaultSafelyExceptionHandler, block)
|
||||
|
||||
//suspend inline fun <T, R> T.runCatchingSafely(
|
||||
// onException: ExceptionHandler<R>,
|
||||
// block: suspend T.() -> R
|
||||
//): Result<R> = runCatchingSafely(onException) {
|
||||
// block()
|
||||
//}
|
||||
|
||||
/**
|
||||
* @return [ContextSafelyExceptionHandler] from [coroutineContext] by key [ContextSafelyExceptionHandlerKey] if
|
||||
* exists
|
||||
@ -96,23 +77,9 @@ suspend fun <T> safelyWithContextExceptionHandler(
|
||||
}
|
||||
|
||||
/**
|
||||
* It will run [block] inside of [supervisorScope] to avoid problems with catching of exceptions
|
||||
* Calls [runCatchingSafely] and getting the result via [Result.getOrThrow]
|
||||
*
|
||||
* Priorities of [ExceptionHandler]s:
|
||||
*
|
||||
* * [onException] In case if custom (will be used anyway if not [defaultSafelyExceptionHandler])
|
||||
* * [CoroutineContext.get] with [SafelyExceptionHandlerKey] as key
|
||||
* * [defaultSafelyExceptionHandler]
|
||||
*
|
||||
* Remember, that [ExceptionHandler] from [CoroutineContext.get] will be used anyway if it is available. After it will
|
||||
* be called [onException]
|
||||
*
|
||||
* @param [onException] Will be called when happen exception inside of [block]. By default will throw exception - this
|
||||
* exception will be available for catching
|
||||
*
|
||||
* @see defaultSafelyExceptionHandler
|
||||
* @see safelyWithoutExceptions
|
||||
* @see safelyWithContextExceptionHandler
|
||||
* @see runCatchingSafely
|
||||
*/
|
||||
suspend inline fun <T> safely(
|
||||
onException: ExceptionHandler<T>,
|
||||
@ -120,44 +87,19 @@ suspend inline fun <T> safely(
|
||||
): T = runCatchingSafely(onException, block).getOrThrow()
|
||||
|
||||
/**
|
||||
* It will run [block] inside of [supervisorScope] to avoid problems with catching of exceptions
|
||||
* Calls [safely] with passing of [defaultSafelyExceptionHandler] as `onException`
|
||||
*
|
||||
* Priorities of [ExceptionHandler]s:
|
||||
*
|
||||
* * [onException] In case if custom (will be used anyway if not [defaultSafelyExceptionHandler])
|
||||
* * [CoroutineContext.get] with [SafelyExceptionHandlerKey] as key
|
||||
* * [defaultSafelyExceptionHandler]
|
||||
*
|
||||
* Remember, that [ExceptionHandler] from [CoroutineContext.get] will be used anyway if it is available. After it will
|
||||
* be called [onException]
|
||||
*
|
||||
* @param [onException] Will be called when happen exception inside of [block]. By default will throw exception - this
|
||||
* exception will be available for catching
|
||||
*
|
||||
* @see defaultSafelyExceptionHandler
|
||||
* @see safelyWithoutExceptions
|
||||
* @see safelyWithContextExceptionHandler
|
||||
* @see runCatchingSafely
|
||||
*/
|
||||
suspend inline fun <T> safely(
|
||||
block: suspend () -> T
|
||||
): T = safely(defaultSafelyExceptionHandler, block)
|
||||
|
||||
suspend fun <T, R> T.runCatchingSafely(
|
||||
onException: ExceptionHandler<R> = defaultSafelyExceptionHandler,
|
||||
block: suspend T.() -> R
|
||||
): Result<R> = runCatching {
|
||||
safely(onException) { block() }
|
||||
}
|
||||
|
||||
@Deprecated("Renamed", ReplaceWith("runCatchingSafely(block)", "dev.inmo.micro_utils.coroutines.runCatchingSafely"))
|
||||
suspend fun <T> safelyWithResult(
|
||||
block: suspend () -> T
|
||||
): Result<T> = runCatchingSafely(defaultSafelyExceptionHandler, block)
|
||||
|
||||
suspend fun <T, R> T.safelyWithResult(
|
||||
block: suspend T.() -> R
|
||||
): Result<R> = runCatchingSafely(defaultSafelyExceptionHandler, block)
|
||||
|
||||
/**
|
||||
* Use this handler in cases you wish to include handling of exceptions by [defaultSafelyWithoutExceptionHandler] and
|
||||
* returning null at one time
|
||||
|
Loading…
Reference in New Issue
Block a user