for-await-resolution-and-error-agen.js (1620B)
1 // |reftest| async 2 // Copyright (C) 2018 Leo Balter. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 /*--- 5 description: > 6 Resolve multiple imports through a for await loop in an async generator 7 esid: sec-finishdynamicimport 8 info: | 9 Runtime Semantics: FinishDynamicImport ( referencingScriptOrModule, specifier, promiseCapability, completion ) 10 11 2. Otherwise, 12 a. Assert: completion is a normal completion and completion.[[Value]] is undefined. 13 b. Let moduleRecord be ! HostResolveImportedModule(referencingScriptOrModule, specifier). 14 c. Assert: Evaluate has already been invoked on moduleRecord and successfully completed. 15 d. Let namespace be GetModuleNamespace(moduleRecord). 16 ... 17 f. Otherwise, perform ! Call(promiseCapability.[[Resolve]], undefined, « namespace.[[Value]] »). 18 flags: [async] 19 features: [dynamic-import, async-iteration] 20 includes: [asyncHelpers.js] 21 ---*/ 22 23 async function * agen() { 24 for await (let imported of [ 25 import('./for-await-resolution-and-error-a_FIXTURE.js'), 26 import('./for-await-resolution-and-error-b_FIXTURE.js'), 27 import('./for-await-resolution-and-error-poisoned_FIXTURE.js'), 28 ]) { 29 yield imported.x; 30 } 31 } 32 33 var aiter = agen(); 34 35 async function fn() { 36 var a = aiter.next(); 37 var b = aiter.next(); 38 var c = aiter.next(); 39 40 assert.sameValue((await a).value, 42); 41 assert.sameValue((await b).value, 39); 42 43 var error; 44 try { 45 await c; 46 } catch (e) { 47 error = e; 48 } 49 50 assert.sameValue(error, 'foo'); 51 } 52 53 asyncTest(fn);