mirror of https://github.com/tc39/test262.git
47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
// Copyright (C) 2019 Caio Lima. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: Public class fields initialization calls [[DefineOwnProperty]]
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esid: sec-define-field
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info: |
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DefineField(receiver, fieldRecord)
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...
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8. If fieldName is a Private Name,
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a. Perform ? PrivateFieldAdd(fieldName, receiver, initValue).
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9. Else,
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a. Assert: IsPropertyKey(fieldName) is true.
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b. Perform ? CreateDataPropertyOrThrow(receiver, fieldName, initValue).
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10. Return.
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includes: [compareArray.js]
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features: [class, class-fields-public, Proxy]
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---*/
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let arr = [];
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let expectedTarget = null;
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function ProxyBase() {
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expectedTarget = this;
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return new Proxy(this, {
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defineProperty: function (target, key, descriptor) {
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arr.push(key);
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arr.push(descriptor.value);
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arr.push(target);
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assert.sameValue(descriptor.enumerable, true);
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assert.sameValue(descriptor.configurable, true);
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assert.sameValue(descriptor.writable, true);
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return Reflect.defineProperty(target, key, descriptor);
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}
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});
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}
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class Test extends ProxyBase {
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f = 3;
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g = "Test262";
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}
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let t = new Test();
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assert.sameValue(t.f, 3);
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assert.sameValue(t.g, "Test262");
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assert.compareArray(arr, ["f", 3, expectedTarget, "g", "Test262", expectedTarget]);
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