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54 lines
2.1 KiB
Swift
54 lines
2.1 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2020 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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import Swift
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@_implementationOnly import _SwiftConcurrencyShims
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/// Common protocol to which all actors conform.
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///
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/// The `Actor` protocol generalizes over all actor types. Actor types
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/// implicitly conform to this protocol.
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@available(SwiftStdlib 5.1, *)
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public protocol Actor: AnyObject, Sendable {
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/// Retrieve the executor for this actor as an optimized, unowned
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/// reference.
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///
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/// This property must always evaluate to the same executor for a
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/// given actor instance, and holding on to the actor must keep the
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/// executor alive.
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///
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/// This property will be implicitly accessed when work needs to be
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/// scheduled onto this actor. These accesses may be merged,
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/// eliminated, and rearranged with other work, and they may even
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/// be introduced when not strictly required. Visible side effects
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/// are therefore strongly discouraged within this property.
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nonisolated var unownedExecutor: UnownedSerialExecutor { get }
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}
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/// Called to initialize the default actor instance in an actor.
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/// The implementation will call this within the actor's initializer.
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@available(SwiftStdlib 5.1, *)
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@_silgen_name("swift_defaultActor_initialize")
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public func _defaultActorInitialize(_ actor: AnyObject)
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/// Called to destroy the default actor instance in an actor.
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/// The implementation will call this within the actor's deinit.
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@available(SwiftStdlib 5.1, *)
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@_silgen_name("swift_defaultActor_destroy")
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public func _defaultActorDestroy(_ actor: AnyObject)
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@available(SwiftStdlib 5.1, *)
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@_silgen_name("swift_task_enqueueMainExecutor")
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@usableFromInline
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internal func _enqueueOnMain(_ job: UnownedJob)
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