Index: test/mjsunit/harmony/array-species.js |
diff --git a/test/mjsunit/harmony/array-species.js b/test/mjsunit/harmony/array-species.js |
deleted file mode 100644 |
index 19ed1d81855b1559abdb726ab4dda61477cb5f1f..0000000000000000000000000000000000000000 |
--- a/test/mjsunit/harmony/array-species.js |
+++ /dev/null |
@@ -1,173 +0,0 @@ |
-// 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-species |
- |
-// Test the ES2015 @@species feature |
- |
-'use strict'; |
- |
-// Subclasses of Array construct themselves under map, etc |
- |
-class MyArray extends Array { } |
- |
-assertEquals(MyArray, new MyArray().map(()=>{}).constructor); |
-assertEquals(MyArray, new MyArray().filter(()=>{}).constructor); |
-assertEquals(MyArray, new MyArray().slice().constructor); |
-assertEquals(MyArray, new MyArray().splice().constructor); |
-assertEquals(MyArray, new MyArray().concat([1]).constructor); |
-assertEquals(1, new MyArray().concat([1])[0]); |
- |
-// Subclasses can override @@species to return the another class |
- |
-class MyOtherArray extends Array { |
- static get [Symbol.species]() { return MyArray; } |
-} |
- |
-assertEquals(MyArray, new MyOtherArray().map(()=>{}).constructor); |
-assertEquals(MyArray, new MyOtherArray().filter(()=>{}).constructor); |
-assertEquals(MyArray, new MyOtherArray().slice().constructor); |
-assertEquals(MyArray, new MyOtherArray().splice().constructor); |
-assertEquals(MyArray, new MyOtherArray().concat().constructor); |
- |
-// Array methods on non-arrays return arrays |
- |
-class MyNonArray extends Array { |
- static get [Symbol.species]() { return MyObject; } |
-} |
- |
-class MyObject { } |
- |
-assertEquals(MyObject, |
- Array.prototype.map.call(new MyNonArray(), ()=>{}).constructor); |
-assertEquals(MyObject, |
- Array.prototype.filter.call(new MyNonArray(), ()=>{}).constructor); |
-assertEquals(MyObject, |
- Array.prototype.slice.call(new MyNonArray()).constructor); |
-assertEquals(MyObject, |
- Array.prototype.splice.call(new MyNonArray()).constructor); |
-assertEquals(MyObject, |
- Array.prototype.concat.call(new MyNonArray()).constructor); |
- |
-assertEquals(undefined, |
- Array.prototype.map.call(new MyNonArray(), ()=>{}).length); |
-assertEquals(undefined, |
- Array.prototype.filter.call(new MyNonArray(), ()=>{}).length); |
-assertEquals(undefined, |
- Array.prototype.concat.call(new MyNonArray(), ()=>{}).length); |
-// slice and splice actually do explicitly define the length for some reason |
-assertEquals(0, Array.prototype.slice.call(new MyNonArray()).length); |
-assertEquals(0, Array.prototype.splice.call(new MyNonArray()).length); |
- |
-// Cross-realm Arrays build same-realm arrays |
- |
-var realm = Realm.create(); |
-assertEquals(Array, |
- Array.prototype.map.call( |
- Realm.eval(realm, "[]"), ()=>{}).constructor); |
-assertFalse(Array === Realm.eval(realm, "[]").map(()=>{}).constructor); |
-assertFalse(Array === Realm.eval(realm, "[].map(()=>{}).constructor")); |
-assertEquals(Array, |
- Array.prototype.concat.call( |
- Realm.eval(realm, "[]")).constructor); |
- |
-// Defaults when constructor or @@species is missing or non-constructor |
- |
-class MyDefaultArray extends Array { |
- static get [Symbol.species]() { return undefined; } |
-} |
-assertEquals(Array, new MyDefaultArray().map(()=>{}).constructor); |
- |
-class MyOtherDefaultArray extends Array { } |
-assertEquals(MyOtherDefaultArray, |
- new MyOtherDefaultArray().map(()=>{}).constructor); |
-MyOtherDefaultArray.prototype.constructor = undefined; |
-assertEquals(Array, new MyOtherDefaultArray().map(()=>{}).constructor); |
-assertEquals(Array, new MyOtherDefaultArray().concat().constructor); |
- |
-// Exceptions propagated when getting constructor @@species throws |
- |
-class SpeciesError extends Error { } |
-class ConstructorError extends Error { } |
-class MyThrowingArray extends Array { |
- static get [Symbol.species]() { throw new SpeciesError; } |
-} |
-assertThrows(() => new MyThrowingArray().map(()=>{}), SpeciesError); |
-Object.defineProperty(MyThrowingArray.prototype, 'constructor', { |
- get() { throw new ConstructorError; } |
-}); |
-assertThrows(() => new MyThrowingArray().map(()=>{}), ConstructorError); |
- |
-// Previously unexpected errors from setting properties in arrays throw |
- |
-class FrozenArray extends Array { |
- constructor(...args) { |
- super(...args); |
- Object.freeze(this); |
- } |
-} |
-assertThrows(() => new FrozenArray([1]).map(()=>0), TypeError); |
-assertThrows(() => new FrozenArray([1]).filter(()=>true), TypeError); |
-assertThrows(() => new FrozenArray([1]).slice(0, 1), TypeError); |
-assertThrows(() => new FrozenArray([1]).splice(0, 1), TypeError); |
-assertThrows(() => new FrozenArray([]).concat([1]), TypeError); |
- |
-// Verify call counts and constructor parameters |
- |
-var count; |
-var params; |
-class MyObservedArray extends Array { |
- constructor(...args) { |
- super(...args); |
- params = args; |
- } |
- static get [Symbol.species]() { |
- count++ |
- return this; |
- } |
-} |
- |
-count = 0; |
-params = undefined; |
-assertEquals(MyObservedArray, |
- new MyObservedArray().map(()=>{}).constructor); |
-assertEquals(1, count); |
-assertArrayEquals([0], params); |
- |
-count = 0; |
-params = undefined; |
-assertEquals(MyObservedArray, |
- new MyObservedArray().filter(()=>{}).constructor); |
-assertEquals(1, count); |
-assertArrayEquals([0], params); |
- |
-count = 0; |
-params = undefined; |
-assertEquals(MyObservedArray, |
- new MyObservedArray().concat().constructor); |
-assertEquals(1, count); |
-assertArrayEquals([0], params); |
- |
-count = 0; |
-params = undefined; |
-assertEquals(MyObservedArray, |
- new MyObservedArray().slice().constructor); |
-assertEquals(1, count); |
-assertArrayEquals([0], params); |
- |
-count = 0; |
-params = undefined; |
-assertEquals(MyObservedArray, |
- new MyObservedArray().splice().constructor); |
-assertEquals(1, count); |
-assertArrayEquals([0], params); |
- |
-// @@species constructor can be a Proxy, and the realm access doesn't |
-// crash |
- |
-class MyProxyArray extends Array { } |
-let ProxyArray = new Proxy(MyProxyArray, {}); |
-MyProxyArray.constructor = ProxyArray; |
- |
-assertEquals(MyProxyArray, new ProxyArray().map(()=>{}).constructor); |