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72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
//===--- TaskPrivate.h - Concurrency library internal interface -*- C++ -*-===//
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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) 2014 - 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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//
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// Internal functions for the concurrency library.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_CONCURRENCY_TASKPRIVATE_BACKDEPLOY56_H
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#define SWIFT_CONCURRENCY_TASKPRIVATE_BACKDEPLOY56_H
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#include "Concurrency/Error.h"
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#include "Concurrency/Task.h"
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#include "swift/Runtime/Error.h"
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namespace swift {
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namespace {
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/// The layout of a context to call one of the following functions:
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///
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/// @_silgen_name("swift_task_future_wait")
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/// func _taskFutureGet<T>(_ task: Builtin.NativeObject) async -> T
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///
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/// @_silgen_name("swift_task_future_wait_throwing")
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/// func _taskFutureGetThrowing<T>(_ task: Builtin.NativeObject) async throws -> T
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///
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/// @_silgen_name("swift_asyncLet_wait")
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/// func _asyncLetGet<T>(_ task: Builtin.RawPointer) async -> T
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///
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/// @_silgen_name("swift_asyncLet_waitThrowing")
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/// func _asyncLetGetThrowing<T>(_ task: Builtin.RawPointer) async throws -> T
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///
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/// @_silgen_name("swift_taskGroup_wait_next_throwing")
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/// func _taskGroupWaitNext<T>(group: Builtin.RawPointer) async throws -> T?
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///
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class TaskFutureWaitAsyncContext : public AsyncContext {
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public:
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SwiftError *errorResult;
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OpaqueValue *successResultPointer;
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void fillWithSuccess(AsyncTask::FutureFragment *future) {
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fillWithSuccess(future->getStoragePtr(), future->getResultType(),
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successResultPointer);
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}
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void fillWithSuccess(OpaqueValue *src, const Metadata *successType,
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OpaqueValue *result) {
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successType->vw_initializeWithCopy(result, src);
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}
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void fillWithError(AsyncTask::FutureFragment *future) {
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fillWithError(future->getError());
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}
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void fillWithError(SwiftError *error) {
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errorResult = error;
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swift_errorRetain(error);
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}
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};
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}
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} // namespace swift
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#endif // SWIFT_CONCURRENCY_TASKPRIVATE_BACKDEPLOY56_H
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