123456789101112131415161718192021222324252627282930313233343536373839404142434445 |
- 'use strict';
- var $TypeError = require('es-errors/type');
- var CompletionRecord = require('es-abstract/2023/CompletionRecord');
- var CreateIterResultObject = require('es-abstract/2023/CreateIterResultObject');
- var GeneratorValidate = require('./GeneratorValidate');
- var SLOT = require('internal-slot');
- module.exports = function GeneratorResumeAbrupt(generator, abruptCompletion, generatorBrand) {
- if (!(abruptCompletion instanceof CompletionRecord)) {
- throw new $TypeError('Assertion failed: abruptCompletion must be a Completion Record');
- }
- var state = GeneratorValidate(generator, generatorBrand); // step 1
- if (state === 'suspendedStart') { // step 2
- SLOT.set(generator, '[[GeneratorState]]', 'completed'); // step 3.a
- SLOT.set(generator, '[[GeneratorContext]]', null); // step 3.b
- state = 'completed'; // step 3.c
- }
- var value = abruptCompletion.value();
- if (state === 'completed') { // step 3
- return CreateIterResultObject(value, true); // steps 3.a-b
- }
- if (state !== 'suspendedYield') {
- throw new $TypeError('Assertion failed: generator state is unexpected: ' + state); // step 4
- }
- if (abruptCompletion.type() === 'return') {
- // due to representing `GeneratorContext` as a function, we can't safely re-invoke it, so we can't support sending it a return completion
- return CreateIterResultObject(SLOT.get(generator, '[[CloseIfAbrupt]]')(abruptCompletion), true);
- }
- var genContext = SLOT.get(generator, '[[GeneratorContext]]'); // step 5
- SLOT.set(generator, '[[GeneratorState]]', 'executing'); // step 8
- var result = genContext(value); // steps 6-7, 8-11
- return result; // step 12
- };
|