| /* |
| * Copyright (C) 2016 Caitlin Potter <caitp@igalia.com>. |
| * Copyright (C) 2019 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| @globalPrivate |
| function asyncFunctionResume(generator, promise, sentValue, resumeMode) |
| { |
| "use strict"; |
| |
| @assert(@isPromise(promise)); |
| |
| var state = @getGeneratorInternalField(generator, @generatorFieldState); |
| var value = @undefined; |
| |
| if (state === @GeneratorStateCompleted || (resumeMode !== @GeneratorResumeModeNormal && resumeMode !== @GeneratorResumeModeThrow)) |
| @throwTypeError("Async function illegally resumed"); |
| |
| try { |
| @putGeneratorInternalField(generator, @generatorFieldState, @GeneratorStateExecuting); |
| value = @getGeneratorInternalField(generator, @generatorFieldNext).@call(@getGeneratorInternalField(generator, @generatorFieldThis), generator, state, sentValue, resumeMode, @getGeneratorInternalField(generator, @generatorFieldFrame)); |
| if (@getGeneratorInternalField(generator, @generatorFieldState) === @GeneratorStateExecuting) { |
| @putGeneratorInternalField(generator, @generatorFieldState, @GeneratorStateCompleted); |
| @resolvePromiseWithFirstResolvingFunctionCallCheck(promise, value); |
| return promise; |
| } |
| } catch (error) { |
| @putGeneratorInternalField(generator, @generatorFieldState, @GeneratorStateCompleted); |
| @rejectPromiseWithFirstResolvingFunctionCallCheck(promise, error); |
| return promise; |
| } |
| |
| @resolveWithoutPromise(value, |
| function(value) { @asyncFunctionResume(generator, promise, value, @GeneratorResumeModeNormal); }, |
| function(error) { @asyncFunctionResume(generator, promise, error, @GeneratorResumeModeThrow); }); |
| |
| return promise; |
| } |