proto-from-ctor-realm.js (2832B)
1 // |reftest| shell-option(--enable-explicit-resource-management) skip-if(!(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('explicit-resource-management'))||!xulRuntime.shell) -- explicit-resource-management is not enabled unconditionally, requires shell-options 2 // Copyright (C) 2023 Ron Buckton. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 5 /*--- 6 esid: sec-disposablestack 7 description: Default [[Prototype]] value derived from realm of the newTarget 8 info: | 9 DisposableStack( ) 10 11 ... 12 2. Let disposableStack be ? OrdinaryCreateFromConstructor(NewTarget, "%DisposableStack.prototype%", « [[DisposableState]], [[DisposeCapability]] »). 13 3. Set disposableStack.[[DisposableState]] to pending. 14 4. Set disposableStack.[[DisposeCapability]] to NewDisposeCapability(). 15 5. Return disposableStack. 16 17 OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] ) 18 19 ... 20 2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto). 21 3. Return ObjectCreate(proto, internalSlotsList). 22 23 GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto ) 24 25 3. Let proto be ? Get(constructor, 'prototype'). 26 4. If Type(proto) is not Object, then 27 a. Let realm be ? GetFunctionRealm(constructor). 28 b. Set proto to realm's intrinsic object named intrinsicDefaultProto. 29 5. Return proto. 30 features: [explicit-resource-management, cross-realm, Reflect, Symbol] 31 ---*/ 32 33 var other = $262.createRealm().global; 34 var newTarget = new other.Function(); 35 var stack; 36 37 newTarget.prototype = undefined; 38 stack = Reflect.construct(DisposableStack, [], newTarget); 39 assert.sameValue(Object.getPrototypeOf(stack), other.DisposableStack.prototype, 'newTarget.prototype is undefined'); 40 41 newTarget.prototype = null; 42 stack = Reflect.construct(DisposableStack, [], newTarget); 43 assert.sameValue(Object.getPrototypeOf(stack), other.DisposableStack.prototype, 'newTarget.prototype is null'); 44 45 newTarget.prototype = true; 46 stack = Reflect.construct(DisposableStack, [], newTarget); 47 assert.sameValue(Object.getPrototypeOf(stack), other.DisposableStack.prototype, 'newTarget.prototype is a Boolean'); 48 49 newTarget.prototype = ''; 50 stack = Reflect.construct(DisposableStack, [], newTarget); 51 assert.sameValue(Object.getPrototypeOf(stack), other.DisposableStack.prototype, 'newTarget.prototype is a String'); 52 53 newTarget.prototype = Symbol(); 54 stack = Reflect.construct(DisposableStack, [], newTarget); 55 assert.sameValue(Object.getPrototypeOf(stack), other.DisposableStack.prototype, 'newTarget.prototype is a Symbol'); 56 57 newTarget.prototype = 1; 58 stack = Reflect.construct(DisposableStack, [], newTarget); 59 assert.sameValue(Object.getPrototypeOf(stack), other.DisposableStack.prototype, 'newTarget.prototype is a Number'); 60 61 62 reportCompare(0, 0);