Remove runtime flags for Proxy and Reflect

test/mjsunit/harmony/proxies-set.js

-// Copyright 2015 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-proxies --harmony-reflect
-
-
-function sloppyDefaultSet(o, p, v) { return o[p] = v }
-function sloppyReflectSet(o, p, v) { return Reflect.set(o, p, v) }
-function strictDefaultSet(o, p, v) { "use strict"; return o[p] = v }
-function strictReflectSet(o, p, v) { "use strict"; return Reflect.set(o, p, v) }
-
-sloppyDefaultSet.shouldThrow = false;
-sloppyReflectSet.shouldThrow = false;
-strictDefaultSet.shouldThrow = true;
-strictReflectSet.shouldThrow = false;
-
-sloppyDefaultSet.returnsBool = false;
-sloppyReflectSet.returnsBool = true;
-strictDefaultSet.returnsBool = false;
-strictReflectSet.returnsBool = true;
-
-
-function assertTrueIf(flag, x) { if (flag) assertTrue(x) }
-function assertFalseIf(flag, x) { if (flag) assertFalse(x) }
-function assertSetFails(mySet, o, p, v) {
-  if (mySet.shouldThrow) {
-    assertThrows(() => mySet(o, p, v), TypeError);
-  } else {
-    assertFalseIf(mySet.returnsBool, mySet(o, p, v));
-  }
-}
-
-
-function dataDescriptor(x) {
-  return {value: x, writable: true, enumerable: true, configurable: true};
-}
-
-
-function toKey(x) {
-  if (typeof x === "symbol") return x;
-  return String(x);
-}
-
-
-var properties =
-    ["bla", "0", 1, Symbol(), {[Symbol.toPrimitive]() {return "a"}}];
-
-
-function TestForwarding(handler, mySet) {
-  assertTrue(undefined == handler.set);
-  assertTrue(undefined == handler.getOwnPropertyDescriptor);
-  assertTrue(undefined == handler.defineProperty);
-
-  var target = {};
-  var proxy = new Proxy(target, handler);
-
-  // Property does not exist on target.
-  for (var p of properties) {
-    assertTrueIf(mySet.returnsBool, mySet(proxy, p, 42));
-    assertSame(42, target[p]);
-  }
-
-  // Property exists as writable data on target.
-  for (var p of properties) {
-    assertTrueIf(mySet.returnsBool, mySet(proxy, p, 0));
-    assertSame(0, target[p]);
-  }
-
-  // Property exists as non-writable data on target.
-  for (var p of properties) {
-    Object.defineProperty(target, p,
-        {value: 42, configurable: true, writable: false});
-    assertSetFails(mySet, proxy, p, 42);
-    assertSetFails(mySet, proxy, p, 0);
-    assertEquals(42, target[p]);
-  }
-};
-
-(function () {
-  // No trap.
-  var handler = {};
-  TestForwarding(handler, sloppyDefaultSet);
-  TestForwarding(handler, sloppyReflectSet);
-  TestForwarding(handler, strictDefaultSet);
-  TestForwarding(handler, strictReflectSet);
-})();
-
-(function () {
-  // "Undefined" trap.
-  var handler = { set: null };
-  TestForwarding(handler, sloppyDefaultSet);
-  TestForwarding(handler, sloppyReflectSet);
-  TestForwarding(handler, strictDefaultSet);
-  TestForwarding(handler, strictReflectSet);
-})();
-
-
-function TestForwarding2(mySet) {
-  // Check that setting on a proxy without "set" trap correctly triggers its
-  // "getOwnProperty" trap and its "defineProperty" trap.
-
-  var target = {};
-  var handler = {};
-  var observations = [];
-  var proxy = new Proxy(target, handler);
-
-  handler.getOwnPropertyDescriptor = function() {
-      observations.push(arguments);
-      return Reflect.getOwnPropertyDescriptor(...arguments);
-  }
-
-  handler.defineProperty = function() {
-      observations.push(arguments);
-      return Reflect.defineProperty(...arguments);
-  }
-
-  for (var p of properties) {
-    mySet(proxy, p, 42);
-    assertEquals(2, observations.length)
-    assertArrayEquals([target, toKey(p)], observations[0]);
-    assertSame(target, observations[0][0]);
-    assertArrayEquals([target, toKey(p), dataDescriptor(42)], observations[1]);
-    assertSame(target, observations[1][0]);
-    observations = [];
-
-    mySet(proxy, p, 42);
-    assertEquals(2, observations.length)
-    assertArrayEquals([target, toKey(p)], observations[0]);
-    assertSame(target, observations[0][0]);
-    assertArrayEquals([target, toKey(p), {value: 42}], observations[1]);
-    assertSame(target, observations[1][0]);
-    observations = [];
-  }
-}
-
-TestForwarding2(sloppyDefaultSet);
-TestForwarding2(sloppyReflectSet);
-TestForwarding2(strictDefaultSet);
-TestForwarding2(strictReflectSet);
-
-
-function TestInvalidTrap(proxy, mySet) {
-  for (var p of properties) {
-    assertThrows(() => mySet(proxy, p, 42), TypeError);
-  }
-}
-
-(function () {
-  var target = {};
-  var handler = { set: true };
-  var proxy = new Proxy(target, handler);
-
-  TestInvalidTrap(proxy, sloppyDefaultSet);
-  TestInvalidTrap(proxy, sloppyReflectSet);
-  TestInvalidTrap(proxy, strictDefaultSet);
-  TestInvalidTrap(proxy, strictReflectSet);
-})();
-
-
-function TestTrappingFalsish(mySet) {
-  var target = {};
-  var handler = { set() {return ""} };
-  var proxy = new Proxy(target, handler);
-
-  for (var p of properties) {
-    assertSetFails(mySet, proxy, p, 42);
-  }
-}
-
-TestTrappingFalsish(sloppyDefaultSet);
-TestTrappingFalsish(sloppyReflectSet);
-TestTrappingFalsish(strictDefaultSet);
-TestTrappingFalsish(strictReflectSet);
-
-
-function TestTrappingTrueish(mySet) {
-  var target = {};
-  var handler = { set() {return 42} };
-  var proxy = new Proxy(target, handler);
-
-  // Trap returns trueish and property does not exist in target.
-  for (var p of properties) {
-    assertTrueIf(mySet.returnsBool, mySet(proxy, p, 0));
-  }
-
-  // Trap returns trueish and target property is configurable or writable data.
-  for (var p of properties) {
-    Object.defineProperty(target, p, {configurable: true, writable: true});
-    assertTrueIf(mySet.returnsBool, mySet(proxy, p, 0));
-    Object.defineProperty(target, p, {configurable: true, writable: false});
-    assertTrueIf(mySet.returnsBool, mySet(proxy, p, 0));
-    Object.defineProperty(target, p, {configurable: false, writable: true});
-    assertTrueIf(mySet.returnsBool, mySet(proxy, p, 0));
-  }
-}
-
-TestTrappingTrueish(sloppyDefaultSet);
-TestTrappingTrueish(sloppyReflectSet);
-TestTrappingTrueish(strictDefaultSet);
-TestTrappingTrueish(strictReflectSet);
-
-
-function TestTrappingTrueish2(mySet) {
-  var target = {};
-  var handler = { set() {return 42} };
-  var proxy = new Proxy(target, handler);
-
-  // Trap returns trueish but target property is frozen data.
-  for (var p of properties) {
-    Object.defineProperty(target, p, {
-        configurable: false, writable: false, value: 0
-    });
-    assertThrows(() => mySet(proxy, p, 666), TypeError);  // New value.
-    assertTrueIf(mySet.returnsBool, mySet(proxy, p, 0));  // Old value.
-  }
-};
-
-TestTrappingTrueish2(sloppyDefaultSet);
-TestTrappingTrueish2(sloppyReflectSet);
-TestTrappingTrueish2(strictDefaultSet);
-TestTrappingTrueish2(strictReflectSet);
-
-
-function TestTrappingTrueish3(mySet) {
-  var target = {};
-  var handler = { set() {return 42} };
-  var proxy = new Proxy(target, handler);
-
-  // Trap returns trueish and target property is configurable accessor.
-  for (var p of properties) {
-    Object.defineProperty(target, p, { configurable: true, set: undefined });
-    assertTrueIf(mySet.returnsBool, mySet(proxy, p, 0));
-  }
-
-  // Trap returns trueish and target property is non-configurable accessor.
-  for (var p of properties) {
-    Object.defineProperty(target, p, { configurable: false, set: undefined });
-    assertThrows(() => mySet(proxy, p, 0));
-  }
-};
-
-TestTrappingTrueish3(sloppyDefaultSet);
-TestTrappingTrueish3(sloppyReflectSet);
-TestTrappingTrueish3(strictDefaultSet);
-TestTrappingTrueish3(strictReflectSet);
-
-
-function TestTrapReceiverArgument(mySet) {
-  var target = {};
-  var handler = {};
-  var observations = [];
-  var proxy = new Proxy(target, handler);
-  var object = Object.create(proxy);
-
-  handler.set = function() {
-      observations.push(arguments);
-      return Reflect.set(...arguments);
-  }
-
-  for (var p of properties) {
-    mySet(object, p, 42);
-    assertEquals(1, observations.length)
-    assertArrayEquals([target, toKey(p), 42, object], observations[0]);
-    assertSame(target, observations[0][0]);
-    assertSame(object, observations[0][3]);
-    observations = [];
-  }
-};
-
-TestTrapReceiverArgument(sloppyDefaultSet);
-TestTrapReceiverArgument(sloppyReflectSet);
-TestTrapReceiverArgument(strictDefaultSet);
-TestTrapReceiverArgument(strictReflectSet);
-
-
-(function TestTrapReceiverArgument2() {
-  // Check that non-object receiver is passed through as well.
-
-  var target = {};
-  var handler = {};
-  var observations = [];
-  var proxy = new Proxy(target, handler);
-
-  handler.set = function() {
-      observations.push(arguments);
-      return Reflect.set(...arguments);
-  }
-
-  for (var p of properties) {
-    for (var receiver of [null, undefined, 1]) {
-      Reflect.set(proxy, p, 42, receiver);
-      assertEquals(1, observations.length)
-      assertArrayEquals([target, toKey(p), 42, receiver], observations[0]);
-      assertSame(target, observations[0][0]);
-      assertSame(receiver, observations[0][3]);
-      observations = [];
-    }
-  }
-
-  var object = Object.create(proxy);
-  for (var p of properties) {
-    for (var receiver of [null, undefined, 1]) {
-      Reflect.set(object, p, 42, receiver);
-      assertEquals(1, observations.length);
-      assertArrayEquals([target, toKey(p), 42, receiver], observations[0]);
-      assertSame(target, observations[0][0]);
-      assertSame(receiver, observations[0][3]);
-      observations = [];
-    }
-  }
-})();