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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// MODULE
import * as ns from "./modules-namespace-getownproperty2.js";
// This tests the same as modules-namespace-getownproperty1.js except that here
// variable a doesn't exist. This means that the late-declared variable b is the
// (alphabetically) first property of the namespace object, which makes a
// difference for some operations.
////////////////////////////////////////////////////////////////////////////////
// There are two exports, b and c (both let-declared). Variable b is
// declared AFTER the first set of tests ran (see below).
export let c = 3;
////////////////////////////////////////////////////////////////////////////////
// for-in
assertThrows(() => { for (let p in ns) {} }, ReferenceError);
// Object.prototype.propertyIsEnumerable
assertThrows(() => Object.prototype.propertyIsEnumerable.call(ns, 'b'),
ReferenceError);
assertTrue(Object.prototype.propertyIsEnumerable.call(ns, 'c'));
// Object.prototype.hasOwnProperty
assertThrows(() => Object.prototype.hasOwnProperty.call(ns, 'b'),
ReferenceError);
assertTrue(Object.prototype.hasOwnProperty.call(ns, 'c'));
// Object.keys
assertThrows(() => Object.keys(ns), ReferenceError);
// Object.entries
assertThrows(() => Object.entries(ns), ReferenceError);
// Object.values
assertThrows(() => Object.values(ns), ReferenceError);
// Object.getOwnPropertyNames
assertEquals(['b', 'c'], Object.getOwnPropertyNames(ns));
// Object.getOwnPropertySymbols
assertEquals([Symbol.toStringTag], Object.getOwnPropertySymbols(ns));
// Reflect.ownKeys
assertEquals(['b', 'c', Symbol.toStringTag], Reflect.ownKeys(ns));
// Object.assign
var copy = {};
assertThrows(() => Object.assign(copy, ns), ReferenceError);
assertEquals({}, copy);
// Object.isFrozen
assertThrows(() => Object.isFrozen(ns), ReferenceError);
// Object.isSealed
assertThrows(() => Object.isSealed(ns), ReferenceError);
// Object.freeze
assertThrows(() => Object.freeze(ns), ReferenceError);
// Object.seal
assertThrows(() => Object.seal(ns), ReferenceError);
// JSON.stringify
assertThrows(() => JSON.stringify(ns), ReferenceError);
// PropertyDefinition
assertThrows(() => ({...copy} = ns), ReferenceError);
// delete
assertThrows(() => delete ns.b, TypeError);
assertFalse(Reflect.deleteProperty(ns, 'b'));
////////////////////////////////////////////////////////////////////////////////
// Variable b is declared here.
export let b = 2;
////////////////////////////////////////////////////////////////////////////////
// for-in
var i = 2;
for (let p in ns) {
assertEquals(i, ns[p]);
i++
}
assertEquals(i, 4);
// Object.prototype.propertyIsEnumerable
assertTrue(Object.prototype.propertyIsEnumerable.call(ns, 'b'));
assertTrue(Object.prototype.propertyIsEnumerable.call(ns, 'c'));
// Object.prototype.hasOwnProperty
assertTrue(Object.prototype.hasOwnProperty.call(ns, 'b'));
assertTrue(Object.prototype.hasOwnProperty.call(ns, 'c'));
// Object.keys
assertEquals(['b', 'c'], Object.keys(ns));
// Object.entries
assertEquals([['b', 2], ['c', 3]], Object.entries(ns));
// Object.values
assertEquals([2, 3], Object.values(ns));
// Object.getOwnPropertyNames
assertEquals(['b', 'c'], Object.getOwnPropertyNames(ns));
// Object.getOwnPropertySymbols
assertEquals([Symbol.toStringTag], Object.getOwnPropertySymbols(ns));
// Reflect.ownKeys
assertEquals(['b', 'c', Symbol.toStringTag], Reflect.ownKeys(ns));
// Object.assign
copy = {};
Object.assign(copy, ns);
assertEquals({b:2, c:3}, copy);
// Object.isFrozen
assertFalse(Object.isFrozen(ns));
// Object.isSealed
assertTrue(Object.isSealed(ns));
// Object.freeze
assertThrows(() => Object.freeze(ns), TypeError);
// Object.seal
assertDoesNotThrow(() => Object.seal(ns));
// JSON.stringify
assertEquals('{"b":2,"c":3}', JSON.stringify(ns));
// PropertyDefinition
copy = {};
({...copy} = ns);
assertEquals({b:2, c:3}, copy);
// delete
assertThrows(() => delete ns.b, TypeError);
assertFalse(Reflect.deleteProperty(ns, 'b'));
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