Remove on-by-default flag --harmony-object

test/mjsunit/harmony/object-assign.js

-// Copyright 2014 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.
-
-// Flags: --harmony-object
-
-// Based on Mozilla Object.assign() tests
-
-function checkDataProperty(object, propertyKey, value, writable, enumerable, configurable) {
-  var desc = Object.getOwnPropertyDescriptor(object, propertyKey);
-  assertFalse(desc === undefined);
-  assertTrue('value' in desc);
-  assertEquals(desc.value, value);
-  assertEquals(desc.writable, writable);
-  assertEquals(desc.enumerable, enumerable);
-  assertEquals(desc.configurable, configurable);
-}
-
-// 19.1.2.1 Object.assign ( target, ...sources )
-assertEquals(Object.assign.length, 2);
-
-// Basic functionality works with multiple sources
-(function basicMultipleSources() {
-  var a = {};
-  var b = { bProp: 1 };
-  var c = { cProp: 2 };
-  Object.assign(a, b, c);
-  assertEquals(a, {
-    bProp: 1,
-    cProp: 2
-  });
-})();
-
-// Basic functionality works with symbols
-(function basicSymbols() {
-  var a = {};
-  var b = { bProp: 1 };
-  var aSymbol = Symbol("aSymbol");
-  b[aSymbol] = 2;
-  Object.assign(a, b);
-  assertEquals(1, a.bProp);
-  assertEquals(2, a[aSymbol]);
-})();
-
-// Dies if target is null or undefined
-assertThrows(function() { return Object.assign(null, null); }, TypeError);
-assertThrows(function() { return Object.assign(null, {}); }, TypeError);
-assertThrows(function() { return Object.assign(undefined); }, TypeError);
-assertThrows(function() { return Object.assign(); }, TypeError);
-
-// Calls ToObject for target
-assertTrue(Object.assign(true, {}) instanceof Boolean);
-assertTrue(Object.assign(1, {}) instanceof Number);
-assertTrue(Object.assign("string", {}) instanceof String);
-var o = {};
-assertSame(Object.assign(o, {}), o);
-
-// Only [[Enumerable]] properties are assigned to target
-(function onlyEnumerablePropertiesAssigned() {
-  var source = Object.defineProperties({}, {
-    a: {value: 1, enumerable: true},
-    b: {value: 2, enumerable: false},
-  });
-  var target = Object.assign({}, source);
-  assertTrue("a" in target);
-  assertFalse("b" in target);
-})();
-
-// Properties are retrieved through Get()
-// Properties are assigned through Put()
-(function testPropertiesAssignedThroughPut() {
-  var setterCalled = false;
-  Object.assign({set a(v) { setterCalled = v }}, {a: true});
-  assertTrue(setterCalled);
-})();
-
-// Properties are retrieved through Get()
-// Properties are assigned through Put(): Existing property attributes are not altered
-(function propertiesAssignedExistingNotAltered() {
-  var source = {a: 1, b: 2, c: 3};
-  var target = {a: 0, b: 0, c: 0};
-  Object.defineProperty(target, "a", {enumerable: false});
-  Object.defineProperty(target, "b", {configurable: false});
-  Object.defineProperty(target, "c", {enumerable: false, configurable: false});
-  Object.assign(target, source);
-  checkDataProperty(target, "a", 1, true, false, true);
-  checkDataProperty(target, "b", 2, true, true, false);
-  checkDataProperty(target, "c", 3, true, false, false);
-})();
-
-// Properties are retrieved through Get()
-// Properties are assigned through Put(): Throws TypeError if non-writable
-(function propertiesAssignedTypeErrorNonWritable() {
-  var source = {a: 1};
-  var target = {a: 0};
-  Object.defineProperty(target, "a", {writable: false});
-  assertThrows(function() { return Object.assign(target, source); }, TypeError);
-  checkDataProperty(target, "a", 0, false, true, true);
-})();
-
-// Properties are retrieved through Get()
-// Put() creates standard properties; Property attributes from source are
-// ignored
-(function createsStandardProperties() {
-  var source = {a: 1, b: 2, c: 3, get d() { return 4 }};
-  Object.defineProperty(source, "b", {writable: false});
-  Object.defineProperty(source, "c", {configurable: false});
-  var target = Object.assign({}, source);
-  checkDataProperty(target, "a", 1, true, true, true);
-  checkDataProperty(target, "b", 2, true, true, true);
-  checkDataProperty(target, "c", 3, true, true, true);
-  checkDataProperty(target, "d", 4, true, true, true);
-})();
-
-// Properties created during traversal are not copied
-(function propertiesCreatedDuringTraversalNotCopied() {
-  var source = {get a() { this.b = 2 }};
-  var target = Object.assign({}, source);
-  assertTrue("a" in target);
-  assertFalse("b" in target);
-})();
-
-// String and Symbol valued properties are copied
-(function testStringAndSymbolPropertiesCopied() {
-  var keyA = "str-prop";
-  var source = {"str-prop": 1};
-  var target = Object.assign({}, source);
-  checkDataProperty(target, keyA, 1, true, true, true);
-})();
-
-(function testExceptionsStopFirstException() {
-  var ErrorA = function ErrorA() {};
-  var ErrorB = function ErrorB() {};
-  var log = "";
-  var source = { b: 1, a: 1 };
-  var target = {
-      set a(v) { log += "a"; throw new ErrorA },
-      set b(v) { log += "b"; throw new ErrorB },
-  };
-  assertThrows(function() { return Object.assign(target, source); }, ErrorB);
-  assertEquals(log, "b");
-})();