Package-level declarations

Types

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class AccumulatorFlow<T>(sourceDataFlow: Flow<T>, scope: CoroutineScope) : AbstractFlow<T>

This Flow will have behaviour very similar to SharedFlow, but there are several differences:

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interface ActorAction<T>
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ExceptionHandler wrapper which was created to make possible to use handler across all coroutines calls

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class DeferredAction<T, O>(val deferred: Deferred<T>, val callback: suspend (T) -> O)
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class DoWithFirstBuilder<T>(scope: CoroutineScope)
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typealias ExceptionHandler<T> = suspend (Throwable) -> T
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class FlowOnHierarchyChangeListener(recursive: Boolean = false, _onChildViewAdded: MutableSharedFlow<Pair<View, View>> = MutableSharedFlow(extraBufferCapacity = Int.MAX_VALUE), _onChildViewRemoved: MutableSharedFlow<Pair<View, View>> = MutableSharedFlow(extraBufferCapacity = Int.MAX_VALUE)) : ViewGroup.OnHierarchyChangeListener

kotlinx.coroutines.flow.Flow-based android.view.ViewGroup.OnHierarchyChangeListener

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sealed interface SmartMutex

It is interface which will work like classic Mutex, but in difference have lockStateFlow for listening of the SmartMutex state.

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class SmartRWLocker(readPermits: Int = Int.MAX_VALUE, writeIsLocked: Boolean = false)

Composite mutex which works with next rules:

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sealed interface SmartSemaphore

It is interface which will work like classic Semaphore, but in difference have permitsStateFlow for listening of the SmartSemaphore state.

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open class SpecialMutableStateFlow<T>(initialValue: T) : MutableStateFlow<T> , FlowCollector<T> , MutableSharedFlow<T>

Works like StateFlow, but guarantee that latest value update will always be delivered to each active subscriber

Properties

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val <T> T.asDeferred: Deferred<T>
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val Default: CoroutineDispatcher
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This instance will be used in all calls of safely where exception handler has not been passed

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This instance will be used in all calls of safelyWithoutExceptions as an exception handler for safely call

Use this handler in cases you wish to include handling of exceptions by defaultSafelyWithoutExceptionHandler and returning null at one time

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val IO: CoroutineDispatcher
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val UI: MainCoroutineDispatcher

Functions

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fun <T> Channel<T>.accumulatorFlow(scope: CoroutineScope): Flow<T>

Creates AccumulatorFlow using this with receiveAsFlow to get

fun <T> Flow<T>.accumulatorFlow(scope: CoroutineScope): Flow<T>

Creates AccumulatorFlow using this as base Flow

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fun <T> CoroutineScope.actor(channelCapacity: Int = Channel.UNLIMITED, block: suspend (T) -> Unit): Channel<T>
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fun <T> CoroutineScope.actorAsync(channelCapacity: Int = Channel.UNLIMITED, markerFactory: suspend (T) -> Any? = { null }, block: suspend (T) -> Unit): Channel<T>
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fun <T> CoroutineScope.asyncSafely(context: CoroutineContext = EmptyCoroutineContext, start: CoroutineStart = CoroutineStart.DEFAULT, onException: ExceptionHandler<T> = defaultSafelyExceptionHandler, block: suspend CoroutineScope.() -> T): Deferred<Result<T>>
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fun <T> CoroutineScope.asyncSafelyWithoutExceptions(context: CoroutineContext = EmptyCoroutineContext, start: CoroutineStart = CoroutineStart.DEFAULT, onException: ExceptionHandler<T?> = defaultSafelyWithoutExceptionHandlerWithNull, block: suspend CoroutineScope.() -> T): Deferred<Result<T?>>
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fun <T> CoroutineScope.asyncWeak(context: CoroutineContext = EmptyCoroutineContext, start: CoroutineStart = CoroutineStart.DEFAULT, block: suspend CoroutineScope.() -> T): Deferred<T>

this will be used as base for WeakScope. Other parameters (context, start, block) will be used to create async

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suspend fun <T> awaitFirst(vararg deferreds: Deferred<T>, cancelOthers: Boolean = true): T

Trying to Deferred.await on all deferreds. The first Deferred completed its work will interrupt all others awaits and, if cancelOthers passed as true (by default), will also cancel all the others deferreds

suspend fun <T> awaitFirst(vararg deferreds: Deferred<T>, scope: CoroutineScope, cancelOnResult: Boolean = true): T

Trying to Deferred.await on all deferreds. The first Deferred completed its work will interrupt all others awaits and, if cancelOnResult passed as true (by default), will also cancel all the others deferreds

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suspend fun <T> Iterable<Deferred<T>>.awaitFirst(cancelOthers: Boolean = true): T

Trying to Deferred.await on all thiss. The first Deferred completed its work will interrupt all others awaits and, if cancelOthers passed as true (by default), will also cancel all the others Deferreds

suspend fun <T> Iterable<Deferred<T>>.awaitFirst(scope: CoroutineScope, cancelOnResult: Boolean = true): T

Trying to Deferred.await on all thiss. The first Deferred completed its work will interrupt all others awaits and, if cancelOnResult passed as true (by default), will also cancel all the others Deferreds

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suspend fun <T> Iterable<Deferred<T>>.awaitFirstWithDeferred(scope: CoroutineScope, cancelOnResult: Boolean = true): Pair<Deferred<T>, T>

Trying to Deferred.await on all thiss. The first Deferred completed its work will interrupt all others awaits and, if cancelOnResult passed as true (by default), will also cancel all the others Deferreds

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fun <T, O> Deferred<T>.buildAction(callback: suspend (T) -> O): DeferredAction<T, O>
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fun CoroutineScopeWithDefaultFallback(context: CoroutineContext, defaultExceptionsHandler: ExceptionHandler<Unit>): CoroutineScope
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fun CoroutineScope.createActionsActor(): Channel<suspend () -> Unit>

Planned to use with doWithSuspending. Will execute incoming lambdas sequentially

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inline fun CoroutineScope.createSafeActionsActor(noinline onException: ExceptionHandler<Unit> = defaultSafelyExceptionHandler): Channel<suspend () -> Unit>

Planned to use with doWithSuspending. Will execute incoming lambdas sequentially

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fun <T> Flow<T>.debouncedBy(timeout: (T) -> Long, markerFactory: (T) -> Any?): Flow<T>
fun <T> Flow<T>.debouncedBy(timeout: Long, markerFactory: (T) -> Any?): Flow<T>
fun <T> Flow<T>.debouncedBy(timeout: Duration, markerFactory: (T) -> Any?): Flow<T>
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inline suspend fun <T> doIn(context: CoroutineContext, noinline block: suspend CoroutineScope.() -> T): T
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inline suspend fun <T> doInDefault(noinline block: suspend CoroutineScope.() -> T): T
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inline suspend fun <T> doInIO(noinline block: suspend CoroutineScope.() -> T): T
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inline suspend fun <T> doInUI(noinline block: suspend CoroutineScope.() -> T): T
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suspend fun <T> doOutsideOfCoroutine(block: () -> T): T

Call this method in case you need to do something in common thread (like reading of file in JVM)

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fun <T> doSynchronously(block: suspend CoroutineScope.() -> T): T
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fun <T> CoroutineScope.doSynchronously(block: suspend CoroutineScope.() -> T): T
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suspend fun <T> Channel<suspend () -> Unit>.doWithSuspending(action: ActorAction<T>): T

Must be use with actor created by createActionsActor or createSafeActionsActor. Will send lambda which will execute action and return result.

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fun <T> Flow<T>.filterNotNull(): Flow<T & Any>
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suspend fun <T> List<Deferred<T>>.first(scope: CoroutineScope, cancelOnResult: Boolean = true): T
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suspend fun <T> Flow<T?>.firstNotNull(): T
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suspend fun <T> CoroutineScope.firstOf(vararg variants: Deferred<T>, cancelOnResult: Boolean = true): T
suspend fun <T> CoroutineScope.firstOf(cancelOnResult: Boolean = true, block: DoWithFirstBuilder<T>.() -> Unit): T
suspend fun <T> CoroutineScope.firstOf(variants: Iterable<Deferred<T>>, cancelOnResult: Boolean = true): T
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@JvmName(name = "flatMapIterable")
inline fun <T, R> Flow<Iterable<T>>.flatMap(crossinline mapper: suspend (T) -> R): Flow<R>
inline fun <T, R> Flow<Flow<T>>.flatMap(crossinline mapper: suspend (T) -> R): Flow<R>
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@JvmName(name = "flatMapNotNullIterable")
inline fun <T, R> Flow<Iterable<T>>.flatMapNotNull(crossinline mapper: suspend (T) -> R): Flow<R & Any>
inline fun <T, R> Flow<Flow<T>>.flatMapNotNull(crossinline mapper: suspend (T) -> R): Flow<R & Any>
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@JvmName(name = "flattenIterable")
fun <T> Flow<Iterable<T>>.flatten(): Flow<T>
fun <T> Flow<Flow<T>>.flatten(): Flow<T>
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inline suspend operator fun <T> FlowCollector<T>.invoke(value: T)
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suspend fun <O> invokeFirstOf(scope: CoroutineScope, vararg variants: DeferredAction<*, O>, cancelOnResult: Boolean = true): O
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suspend fun <O> Iterable<DeferredAction<*, O>>.invokeFirstOf(scope: CoroutineScope, cancelOnResult: Boolean = true): O
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suspend fun <T, O> invokeOnFirst(scope: CoroutineScope, vararg variants: Deferred<T>, cancelOnResult: Boolean = true, callback: suspend (T) -> O): O
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suspend fun <T, O> Iterable<Deferred<T>>.invokeOnFirst(scope: CoroutineScope, cancelOnResult: Boolean = true, callback: suspend (T) -> O): O
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suspend fun <T, O> CoroutineScope.invokeOnFirstOf(cancelOnResult: Boolean = true, block: DoWithFirstBuilder<T>.() -> Unit, callback: suspend (T) -> O): O
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suspend fun joinFirst(vararg jobs: Job, cancelOthers: Boolean = true): Job
suspend fun joinFirst(vararg jobs: Job, scope: CoroutineScope, cancelOthers: Boolean = true): Job

Trying to Job.join on all jobs. The first Job completed its work will interrupt all others joins and, if cancelOthers passed as true (by default), will also cancel all the others Jobs

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suspend fun Iterable<Job>.joinFirst(cancelOthers: Boolean = true): Job
suspend fun Iterable<Job>.joinFirst(scope: CoroutineScope, cancelOthers: Boolean = true): Job

Trying to Job.join on all thiss. The first Job completed its work will interrupt all others joins and, if cancelOthers passed as true (by default), will also cancel all the others Jobs

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fun <T> launchInCurrentThread(block: suspend CoroutineScope.() -> T): T
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fun CoroutineScope.launchSafely(context: CoroutineContext = EmptyCoroutineContext, start: CoroutineStart = CoroutineStart.DEFAULT, onException: ExceptionHandler<Unit> = defaultSafelyExceptionHandler, block: suspend CoroutineScope.() -> Unit): Job
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fun CoroutineScope.launchSafelyWithoutExceptions(context: CoroutineContext = EmptyCoroutineContext, start: CoroutineStart = CoroutineStart.DEFAULT, onException: ExceptionHandler<Unit?> = defaultSafelyWithoutExceptionHandlerWithNull, block: suspend CoroutineScope.() -> Unit): Job
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fun <T> launchSynchronously(block: suspend CoroutineScope.() -> T): T
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fun <T> CoroutineScope.launchSynchronously(block: suspend CoroutineScope.() -> T): T
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fun CoroutineScope.launchWeak(context: CoroutineContext = EmptyCoroutineContext, start: CoroutineStart = CoroutineStart.DEFAULT, block: suspend CoroutineScope.() -> Unit): Job

this will be used as base for WeakScope. Other parameters (context, start, block) will be used to launch

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fun CoroutineScope.LinkedSupervisorJob(additionalContext: CoroutineContext? = null): CoroutineContext
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fun CoroutineContext.LinkedSupervisorScope(additionalContext: CoroutineContext? = null): CoroutineScope
fun CoroutineScope.LinkedSupervisorScope(additionalContext: CoroutineContext? = null): CoroutineScope
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inline operator fun <T> Flow<T>.plus(other: Flow<T>): Flow<T>
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suspend fun preloadImage(src: String): Image
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inline suspend fun <T> runCatchingSafely(block: suspend () -> T): Result<T>

Launching runCatchingSafely with defaultSafelyExceptionHandler as onException parameter

inline suspend fun <T> runCatchingSafely(onException: ExceptionHandler<T>, block: suspend () -> T): Result<T>

Launching block in runCatching. In case of failure, it will:

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inline suspend fun <T, R> R.runCatchingSafely(block: suspend R.() -> T): Result<T>
inline suspend fun <T, R> R.runCatchingSafely(onException: ExceptionHandler<T>, block: suspend R.() -> T): Result<T>
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suspend fun <T> runCatchingSafelyWithoutExceptions(onException: ExceptionHandler<T?> = defaultSafelyExceptionHandler, block: suspend () -> T): Result<T?>
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inline fun <T> CoroutineScope.safeActor(channelCapacity: Int = Channel.UNLIMITED, noinline onException: ExceptionHandler<Unit> = defaultSafelyExceptionHandler, crossinline block: suspend (T) -> Unit): Channel<T>
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inline fun <T> CoroutineScope.safeActorAsync(channelCapacity: Int = Channel.UNLIMITED, noinline onException: ExceptionHandler<Unit> = defaultSafelyExceptionHandler, noinline markerFactory: suspend (T) -> Any? = { null }, crossinline block: suspend (T) -> Unit): Channel<T>
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inline suspend fun <T> safely(block: suspend () -> T): T

Calls safely with passing of defaultSafelyExceptionHandler as onException

inline suspend fun <T> safely(onException: ExceptionHandler<T>, block: suspend () -> T): T

Calls runCatchingSafely and getting the result via Result.getOrThrow

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inline suspend fun <T, R> R.safely(block: suspend R.() -> T): T
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suspend fun <T> safelyWithContextExceptionHandler(contextExceptionHandler: ExceptionHandler<Unit>, safelyExceptionHandler: ExceptionHandler<T> = defaultSafelyExceptionHandler, block: suspend () -> T): T

This method will set new coroutineContext with ContextSafelyExceptionHandler. In case if coroutineContext already contains ContextSafelyExceptionHandler, ContextSafelyExceptionHandler.handler will be used BEFORE contextExceptionHandler in case of exception.

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suspend fun <T> safelyWithoutExceptions(onException: ExceptionHandler<T> = defaultSafelyExceptionHandler, block: suspend () -> T): T?

Shortcut for safely with exception handler, that as expected must return null in case of impossible creating of result from exception (instead of throwing it, by default always returns null)

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suspend fun selectFileOrNull(inputSetup: (HTMLInputElement) -> Unit = {}, onFailure: (Throwable) -> Unit = {}): MPPFile?
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suspend fun selectFileOrThrow(inputSetup: (HTMLInputElement) -> Unit = {}): MPPFile
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Use ViewGroup.setOnHierarchyChangeListener recursively for all available ViewGroups starting with this. This extension DO NOT guarantee that recursive subscription will happen after this method call

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inline fun <T> Flow<T>.subscribe(scope: CoroutineScope, noinline block: suspend (T) -> Unit): Job

Shortcut for chain if Flow.onEach and Flow.launchIn

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fun <T, M> Flow<T>.subscribeAsync(scope: CoroutineScope, markerFactory: suspend (T) -> M, block: suspend (T) -> Unit): Job
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inline fun <T> Flow<T>.subscribeSafely(scope: CoroutineScope, noinline onException: ExceptionHandler<Unit> = defaultSafelyExceptionHandler, noinline block: suspend (T) -> Unit): Job

Use subscribe, but all blocks will be called inside of safely function. Use onException to set up your reaction for Throwables

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fun <T, M> Flow<T>.subscribeSafelyAsync(scope: CoroutineScope, markerFactory: suspend (T) -> M, onException: ExceptionHandler<Unit> = defaultSafelyExceptionHandler, block: suspend (T) -> Unit): Job
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inline fun <T> Flow<T>.subscribeSafelySkippingExceptions(scope: CoroutineScope, noinline block: suspend (T) -> Unit): Job

Use subscribeSafelyWithoutExceptions, but all exceptions inside of safely will be skipped

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fun <T, M> Flow<T>.subscribeSafelySkippingExceptionsAsync(scope: CoroutineScope, markerFactory: suspend (T) -> M, block: suspend (T) -> Unit): Job
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inline fun <T> Flow<T>.subscribeSafelyWithoutExceptions(scope: CoroutineScope, noinline onException: ExceptionHandler<T?> = defaultSafelyWithoutExceptionHandlerWithNull, noinline block: suspend (T) -> Unit): Job

Use subscribeSafelyWithoutExceptions, but all exceptions will be passed to defaultSafelyExceptionHandler

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fun <T, M> Flow<T>.subscribeSafelyWithoutExceptionsAsync(scope: CoroutineScope, markerFactory: suspend (T) -> M, onException: ExceptionHandler<T?> = defaultSafelyWithoutExceptionHandlerWithNull, block: suspend (T) -> Unit): Job
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fun <T> Flow<T>.takeNotNull(): Flow<T & Any>
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suspend fun Blob.toByteArray(): ByteArray
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suspend fun SmartRWLocker.waitReadRelease(permits: Int = 1): Int

Will wait until the SmartSemaphore.permitsStateFlow of this instance will have permits count free permits.

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suspend fun SmartSemaphore.waitRelease(permits: Int = 1): Int

Will wait until the SmartSemaphore.permitsStateFlow of this instance will have permits count free permits.

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Will wait until the SmartMutex.lockStateFlow of this instance will be false.

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Will wait until the SmartMutex.lockStateFlow of this instance will be false.

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fun WeakScope(context: CoroutineContext): CoroutineScope

Created CoroutineScope which will launch listening of context job completing and drop itself. Current weak scope will not be attached to context directly. So, this CoroutineScope will not prevent parent one from cancelling if it is launched with supervisorScope or coroutineScope, but still will follow closing status of parent Job

fun WeakScope(scope: CoroutineScope): CoroutineScope

Created CoroutineScope which will launch listening of scope job completing and drop itself. Current weak scope will not be attached to scope directly. So, this CoroutineScope will not prevent parent one from cancelling if it is launched with supervisorScope or coroutineScope, but still will follow closing status of parent Job

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inline suspend fun <T> SmartSemaphore.Mutable.withAcquire(permits: Int = 1, action: () -> T): T

Will call SmartSemaphore.Mutable.lock, then execute action and return the result after SmartSemaphore.Mutable.unlock

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inline suspend fun <T> SmartMutex.Mutable.withLock(action: () -> T): T

Will call SmartMutex.Mutable.lock, then execute action and return the result after SmartMutex.Mutable.unlock

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inline suspend fun <T> SmartRWLocker.withReadAcquire(action: () -> T): T

Will call SmartSemaphore.Mutable.lock, then execute action and return the result after SmartSemaphore.Mutable.unlock

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inline suspend fun <T> SmartRWLocker.withWriteLock(action: () -> T): T

Will call SmartMutex.Mutable.lock, then execute action and return the result after SmartMutex.Mutable.unlock