| // Copyright (C) 2018 Leo Balter. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| description: > |
| ImportCall returns a promise |
| esid: sec-import-call-runtime-semantics-evaluation |
| info: | |
| Import Calls |
| |
| Runtime Semantics: Evaluation |
| |
| ImportCall : import(AssignmentExpression) |
| |
| 1. Let referencingScriptOrModule be ! GetActiveScriptOrModule(). |
| 2. Let argRef be the result of evaluating AssignmentExpression. |
| 3. Let specifier be ? GetValue(argRef). |
| 4. Let promiseCapability be ! NewPromiseCapability(%Promise%). |
| 5. Let specifierString be ToString(specifier). |
| 6. IfAbruptRejectPromise(specifierString, promiseCapability). |
| 7. Perform ! HostImportModuleDynamically(referencingScriptOrModule, specifierString, promiseCapability). |
| 8. Return promiseCapability.[[Promise]]. |
| features: [dynamic-import] |
| includes: [fnGlobalObject.js] |
| ---*/ |
| |
| const originalPromise = Promise; |
| |
| fnGlobalObject().Promise = function() { |
| throw "This should not be called"; |
| }; |
| |
| const p = import('./dynamic-import-module_FIXTURE.js'); |
| |
| assert.sameValue(p.constructor, originalPromise, 'constructor is %Promise%'); |
| assert.sameValue(Object.getPrototypeOf(p), originalPromise.prototype, 'prototype is %PromisePrototype%'); |
| assert.sameValue(p.then, originalPromise.prototype.then, 'preserves the original `then` method'); |
| assert.sameValue(p.catch, originalPromise.prototype.catch, 'preserves the original `catch` method'); |
| assert.sameValue(p.finally, originalPromise.prototype.finally, 'preserves the original `finally` method'); |
| |
| assert.sameValue( |
| Object.prototype.hasOwnProperty.call(p, 'then'), false, |
| 'returned promise has no own property then' |
| ); |
| |
| assert.sameValue( |
| Object.prototype.hasOwnProperty.call(p, 'catch'), false, |
| 'returned promise has no own property catch' |
| ); |
| |
| assert.sameValue( |
| Object.prototype.hasOwnProperty.call(p, 'finally'), false, |
| 'returned promise has no own property finally' |
| ); |