// Copyright 2010 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. function assertPrototypeOf(func, expected) { assertEquals(expected, Object.getPrototypeOf(func)); } assertThrows(function() { Object.getPrototypeOf(undefined); }, TypeError); assertThrows(function() { Object.getPrototypeOf(null); }, TypeError); function F(){}; var y = new F(); assertPrototypeOf(y, F.prototype); assertPrototypeOf(F, Function.prototype); assertPrototypeOf({x: 5}, Object.prototype); assertPrototypeOf({x: 5, __proto__: null}, null); assertPrototypeOf([1, 2], Array.prototype); assertPrototypeOf(1, Number.prototype); assertPrototypeOf(true, Boolean.prototype); assertPrototypeOf(false, Boolean.prototype); assertPrototypeOf('str', String.prototype); assertPrototypeOf(Symbol(), Symbol.prototype); var errorFunctions = [ EvalError, RangeError, ReferenceError, SyntaxError, TypeError, URIError, ]; for (var f of errorFunctions) { assertPrototypeOf(f, Error); assertPrototypeOf(new f(), f.prototype); } // Builtin constructors. var functions = [ Array, ArrayBuffer, Boolean, // DataView, Date, Error, // Float32Array, prototype is %TypedArray% // Float64Array, Function, // Int16Array, // Int32Array, // Int8Array, Map, Number, Object, // Promise, RegExp, Set, String, // Symbol, not constructible // Uint16Array, // Uint32Array, // Uint8Array, // Uint8ClampedArray, WeakMap, WeakSet, ]; for (var f of functions) { assertPrototypeOf(f, Function.prototype); assertPrototypeOf(new f(), f.prototype); } var p = new Promise(function() {}); assertPrototypeOf(p, Promise.prototype); var dv = new DataView(new ArrayBuffer()); assertPrototypeOf(dv, DataView.prototype);