| // 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); |