| // Copyright (C) 2019 Caio Lima. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| description: Public class fields initialization calls [[DefineOwnProperty]] |
| esid: sec-define-field |
| info: | |
| DefineField(receiver, fieldRecord) |
| ... |
| 8. If fieldName is a Private Name, |
| a. Perform ? PrivateFieldAdd(fieldName, receiver, initValue). |
| 9. Else, |
| a. Assert: IsPropertyKey(fieldName) is true. |
| b. Perform ? CreateDataPropertyOrThrow(receiver, fieldName, initValue). |
| 10. Return. |
| includes: [compareArray.js] |
| features: [class, class-fields-public, Proxy] |
| ---*/ |
| |
| let arr = []; |
| let expectedTarget = null; |
| function ProxyBase() { |
| expectedTarget = this; |
| return new Proxy(this, { |
| defineProperty: function (target, key, descriptor) { |
| arr.push(key); |
| arr.push(descriptor.value); |
| arr.push(target); |
| assert.sameValue(descriptor.enumerable, true); |
| assert.sameValue(descriptor.configurable, true); |
| assert.sameValue(descriptor.writable, true); |
| return Reflect.defineProperty(target, key, descriptor); |
| } |
| }); |
| } |
| |
| class Test extends ProxyBase { |
| f = 3; |
| g = "Test262"; |
| } |
| |
| let t = new Test(); |
| assert.sameValue(t.f, 3); |
| assert.sameValue(t.g, "Test262"); |
| |
| assert.compareArray(arr, ["f", 3, expectedTarget, "g", "Test262", expectedTarget]); |