e645597aa7
Introduce new %Apply native. Extend Execution::Call to optionally handle receiver rewriting (needed for %Apply). Fix Function.prototype.bind for functions that have .apply modified. R=kmillikin@chromium.org BUG=v8:1543 TEST= Review URL: http://codereview.chromium.org/7623011 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9258 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
1098 lines
29 KiB
JavaScript
1098 lines
29 KiB
JavaScript
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --harmony-proxies
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// TODO(rossberg): test exception cases.
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// TODO(rossberg): test proxies as prototypes.
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// TODO(rossberg): for-in for proxies not implemented.
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// TODO(rossberg): function proxies as constructors not implemented.
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// Helper.
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function TestWithProxies(test, handler) {
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test(handler, Proxy.create)
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test(handler, function(h) {return Proxy.createFunction(h, function() {})})
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}
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// Getters.
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function TestGet(handler) {
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TestWithProxies(TestGet2, handler)
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}
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function TestGet2(handler, create) {
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var o = create(handler)
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assertEquals(42, o.a)
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assertEquals(42, o["b"])
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}
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TestGet({
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get: function(r, k) { return 42 }
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})
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TestGet({
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get: function(r, k) { return this.get2(r, k) },
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get2: function(r, k) { return 42 }
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})
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TestGet({
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getPropertyDescriptor: function(k) { return {value: 42} }
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})
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TestGet({
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getPropertyDescriptor: function(k) { return this.getPropertyDescriptor2(k) },
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getPropertyDescriptor2: function(k) { return {value: 42} }
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})
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TestGet({
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getPropertyDescriptor: function(k) {
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return {get value() { return 42 }}
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}
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})
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TestGet({
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get: undefined,
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getPropertyDescriptor: function(k) { return {value: 42} }
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})
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TestGet(Proxy.create({
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get: function(pr, pk) {
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return function(r, k) { return 42 }
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}
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}))
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function TestGetCall(handler) {
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TestWithProxies(TestGetCall2, handler)
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}
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function TestGetCall2(handler, create) {
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var p = create(handler)
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assertEquals(55, p.f())
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assertEquals(55, p.f("unused", "arguments"))
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assertEquals(55, p.f.call(p))
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assertEquals(55, p.withargs(45, 5))
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assertEquals(55, p.withargs.call(p, 11, 22))
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assertEquals("6655", "66" + p) // calls p.toString
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}
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TestGetCall({
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get: function(r, k) { return function() { return 55 } }
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})
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TestGetCall({
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get: function(r, k) { return this.get2(r, k) },
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get2: function(r, k) { return function() { return 55 } }
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})
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TestGetCall({
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getPropertyDescriptor: function(k) {
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return {value: function() { return 55 }}
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}
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})
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TestGetCall({
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getPropertyDescriptor: function(k) { return this.getPropertyDescriptor2(k) },
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getPropertyDescriptor2: function(k) {
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return {value: function() { return 55 }}
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}
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})
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TestGetCall({
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getPropertyDescriptor: function(k) {
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return {get value() { return function() { return 55 } }}
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}
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})
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TestGetCall({
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get: undefined,
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getPropertyDescriptor: function(k) {
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return {value: function() { return 55 }}
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}
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})
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TestGetCall({
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get: function(r, k) {
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if (k == "gg") {
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return function() { return 55 }
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} else if (k == "withargs") {
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return function(n, m) { return n + m * 2 }
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} else {
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return function() { return this.gg() }
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}
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}
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})
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TestGetCall(Proxy.create({
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get: function(pr, pk) {
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return function(r, k) { return function() { return 55 } }
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}
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}))
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// Setters.
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var key
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var val
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function TestSet(handler, create) {
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TestWithProxies(TestSet2, handler)
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}
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function TestSet2(handler, create) {
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var o = create(handler)
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assertEquals(42, o.a = 42)
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assertEquals("a", key)
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assertEquals(42, val)
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assertEquals(43, o["b"] = 43)
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assertEquals("b", key)
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assertEquals(43, val)
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}
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TestSet({
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set: function(r, k, v) { key = k; val = v; return true }
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})
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TestSet({
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set: function(r, k, v) { return this.set2(r, k, v) },
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set2: function(r, k, v) { key = k; val = v; return true }
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})
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TestSet({
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getOwnPropertyDescriptor: function(k) { return {writable: true} },
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defineProperty: function(k, desc) { key = k; val = desc.value }
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})
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TestSet({
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getOwnPropertyDescriptor: function(k) {
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return this.getOwnPropertyDescriptor2(k)
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},
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getOwnPropertyDescriptor2: function(k) { return {writable: true} },
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defineProperty: function(k, desc) { this.defineProperty2(k, desc) },
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defineProperty2: function(k, desc) { key = k; val = desc.value }
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})
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TestSet({
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getOwnPropertyDescriptor: function(k) {
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return {get writable() { return true }}
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},
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defineProperty: function(k, desc) { key = k; val = desc.value }
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})
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TestSet({
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getOwnPropertyDescriptor: function(k) {
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return {set: function(v) { key = k; val = v }}
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}
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})
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TestSet({
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getOwnPropertyDescriptor: function(k) { return null },
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getPropertyDescriptor: function(k) { return {writable: true} },
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defineProperty: function(k, desc) { key = k; val = desc.value }
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})
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TestSet({
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getOwnPropertyDescriptor: function(k) { return null },
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getPropertyDescriptor: function(k) {
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return {get writable() { return true }}
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},
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defineProperty: function(k, desc) { key = k; val = desc.value }
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})
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TestSet({
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getOwnPropertyDescriptor: function(k) { return null },
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getPropertyDescriptor: function(k) {
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return {set: function(v) { key = k; val = v }}
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}
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})
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TestSet({
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getOwnPropertyDescriptor: function(k) { return null },
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getPropertyDescriptor: function(k) { return null },
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defineProperty: function(k, desc) { key = k, val = desc.value }
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})
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TestSet(Proxy.create({
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get: function(pr, pk) {
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return function(r, k, v) { key = k; val = v; return true }
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}
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}))
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// Property definition (Object.defineProperty and Object.defineProperties).
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var key
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var desc
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function TestDefine(handler) {
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TestWithProxies(TestDefine2, handler)
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}
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function TestDefine2(handler, create) {
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var o = create(handler)
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assertEquals(o, Object.defineProperty(o, "a", {value: 44}))
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assertEquals("a", key)
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assertEquals(1, Object.getOwnPropertyNames(desc).length)
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assertEquals(44, desc.value)
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assertEquals(o, Object.defineProperty(o, "b", {value: 45, writable: false}))
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assertEquals("b", key)
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assertEquals(2, Object.getOwnPropertyNames(desc).length)
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assertEquals(45, desc.value)
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assertEquals(false, desc.writable)
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assertEquals(o, Object.defineProperty(o, "c", {value: 46, enumerable: false}))
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assertEquals("c", key)
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assertEquals(2, Object.getOwnPropertyNames(desc).length)
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assertEquals(46, desc.value)
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assertEquals(false, desc.enumerable)
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var attributes = {configurable: true, mine: 66, minetoo: 23}
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assertEquals(o, Object.defineProperty(o, "d", attributes))
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assertEquals("d", key)
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// Modifying the attributes object after the fact should have no effect.
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attributes.configurable = false
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attributes.mine = 77
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delete attributes.minetoo
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assertEquals(3, Object.getOwnPropertyNames(desc).length)
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assertEquals(true, desc.configurable)
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assertEquals(66, desc.mine)
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assertEquals(23, desc.minetoo)
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assertEquals(o, Object.defineProperty(o, "e", {get: function(){ return 5 }}))
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assertEquals("e", key)
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assertEquals(1, Object.getOwnPropertyNames(desc).length)
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assertEquals(5, desc.get())
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assertEquals(o, Object.defineProperty(o, "zzz", {}))
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assertEquals("zzz", key)
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assertEquals(0, Object.getOwnPropertyNames(desc).length)
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// TODO(rossberg): This test requires for-in on proxies.
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// var d = create({
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// get: function(r, k) { return (k === "value") ? 77 : void 0 },
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// getOwnPropertyNames: function() { return ["value"] }
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// })
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// assertEquals(1, Object.getOwnPropertyNames(d).length)
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// assertEquals(77, d.value)
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// assertEquals(o, Object.defineProperty(o, "p", d))
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// assertEquals("p", key)
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// assertEquals(1, Object.getOwnPropertyNames(desc).length)
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// assertEquals(77, desc.value)
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var props = {
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'bla': {},
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blub: {get: function() { return true }},
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'': {get value() { return 20 }},
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last: {value: 21, configurable: true, mine: "eyes"}
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}
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Object.defineProperty(props, "hidden", {value: "hidden", enumerable: false})
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assertEquals(o, Object.defineProperties(o, props))
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assertEquals("last", key)
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assertEquals(2, Object.getOwnPropertyNames(desc).length)
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assertEquals(21, desc.value)
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assertEquals(true, desc.configurable)
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assertEquals(undefined, desc.mine) // Arguably a bug in the spec...
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}
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TestDefine({
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defineProperty: function(k, d) { key = k; desc = d; return true }
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})
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TestDefine({
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defineProperty: function(k, d) { return this.defineProperty2(k, d) },
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defineProperty2: function(k, d) { key = k; desc = d; return true }
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})
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TestDefine(Proxy.create({
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get: function(pr, pk) {
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return function(k, d) { key = k; desc = d; return true }
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}
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}))
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// Property deletion (delete).
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var key
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function TestDelete(handler) {
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TestWithProxies(TestDelete2, handler)
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}
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function TestDelete2(handler, create) {
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var o = create(handler)
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assertEquals(true, delete o.a)
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assertEquals("a", key)
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assertEquals(true, delete o["b"])
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assertEquals("b", key)
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assertEquals(false, delete o.z1)
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assertEquals("z1", key)
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assertEquals(false, delete o["z2"])
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assertEquals("z2", key);
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(function() {
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"use strict"
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assertEquals(true, delete o.c)
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assertEquals("c", key)
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assertEquals(true, delete o["d"])
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assertEquals("d", key)
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assertThrows(function() { delete o.z3 }, TypeError)
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assertEquals("z3", key)
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assertThrows(function() { delete o["z4"] }, TypeError)
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assertEquals("z4", key)
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})()
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}
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TestDelete({
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'delete': function(k) { key = k; return k < "z" }
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})
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TestDelete({
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'delete': function(k) { return this.delete2(k) },
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delete2: function(k) { key = k; return k < "z" }
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})
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TestDelete(Proxy.create({
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get: function(pr, pk) {
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return function(k) { key = k; return k < "z" }
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}
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}))
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// Property descriptors (Object.getOwnPropertyDescriptor).
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function TestDescriptor(handler) {
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TestWithProxies(TestDescriptor2, handler)
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}
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function TestDescriptor2(handler, create) {
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var o = create(handler)
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var descs = [
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{configurable: true},
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{value: 34, enumerable: true, configurable: true},
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{value: 3, writable: false, mine: "eyes", configurable: true},
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{get value() { return 20 }, get configurable() { return true }},
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{get: function() { "get" }, set: function() { "set" }, configurable: true}
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]
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for (var i = 0; i < descs.length; ++i) {
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assertEquals(o, Object.defineProperty(o, i, descs[i]))
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var desc = Object.getOwnPropertyDescriptor(o, i)
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for (p in descs[i]) {
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// TODO(rossberg): Ignore user attributes as long as the spec isn't
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// fixed suitably.
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if (p != "mine") assertEquals(descs[i][p], desc[p])
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}
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assertEquals(undefined, Object.getOwnPropertyDescriptor(o, "absent"))
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}
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}
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TestDescriptor({
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defineProperty: function(k, d) { this["__" + k] = d; return true },
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getOwnPropertyDescriptor: function(k) { return this["__" + k] }
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})
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TestDescriptor({
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defineProperty: function(k, d) { this["__" + k] = d; return true },
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getOwnPropertyDescriptor: function(k) {
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return this.getOwnPropertyDescriptor2(k)
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},
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getOwnPropertyDescriptor2: function(k) { return this["__" + k] }
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})
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// Comparison.
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function TestComparison(eq) {
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TestWithProxies(TestComparison2, eq)
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}
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function TestComparison2(eq, create) {
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var o1 = create({})
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var o2 = create({})
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assertTrue(eq(o1, o1))
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assertTrue(eq(o2, o2))
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assertTrue(!eq(o1, o2))
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assertTrue(!eq(o1, {}))
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assertTrue(!eq({}, o2))
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assertTrue(!eq({}, {}))
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}
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TestComparison(function(o1, o2) { return o1 == o2 })
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TestComparison(function(o1, o2) { return o1 === o2 })
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TestComparison(function(o1, o2) { return !(o1 != o2) })
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TestComparison(function(o1, o2) { return !(o1 !== o2) })
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// Type (typeof).
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function TestTypeof() {
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assertEquals("object", typeof Proxy.create({}))
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assertTrue(typeof Proxy.create({}) == "object")
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assertTrue("object" == typeof Proxy.create({}))
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assertEquals("function", typeof Proxy.createFunction({}, function() {}))
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assertTrue(typeof Proxy.createFunction({}, function() {}) == "function")
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assertTrue("function" == typeof Proxy.createFunction({}, function() {}))
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}
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TestTypeof()
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// Membership test (in).
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var key
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function TestIn(handler) {
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TestWithProxies(TestIn2, handler)
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}
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function TestIn2(handler, create) {
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var o = create(handler)
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assertTrue("a" in o)
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assertEquals("a", key)
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assertTrue(99 in o)
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assertEquals("99", key)
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assertFalse("z" in o)
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assertEquals("z", key)
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if ("b" in o) {
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} else {
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assertTrue(false)
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}
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assertEquals("b", key)
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if ("zz" in o) {
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assertTrue(false)
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}
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assertEquals("zz", key)
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if (!("c" in o)) {
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assertTrue(false)
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}
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assertEquals("c", key)
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if (!("zzz" in o)) {
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} else {
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assertTrue(false)
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}
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assertEquals("zzz", key)
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}
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TestIn({
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has: function(k) { key = k; return k < "z" }
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})
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TestIn({
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has: function(k) { return this.has2(k) },
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has2: function(k) { key = k; return k < "z" }
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})
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TestIn({
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getPropertyDescriptor: function(k) {
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key = k; return k < "z" ? {value: 42} : void 0
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}
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})
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TestIn({
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getPropertyDescriptor: function(k) { return this.getPropertyDescriptor2(k) },
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getPropertyDescriptor2: function(k) {
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key = k; return k < "z" ? {value: 42} : void 0
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}
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})
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TestIn({
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getPropertyDescriptor: function(k) {
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key = k; return k < "z" ? {get value() { return 42 }} : void 0
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}
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})
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TestIn({
|
|
get: undefined,
|
|
getPropertyDescriptor: function(k) {
|
|
key = k; return k < "z" ? {value: 42} : void 0
|
|
}
|
|
})
|
|
|
|
TestIn(Proxy.create({
|
|
get: function(pr, pk) {
|
|
return function(k) { key = k; return k < "z" }
|
|
}
|
|
}))
|
|
|
|
|
|
|
|
// Own Properties (Object.prototype.hasOwnProperty).
|
|
|
|
var key
|
|
|
|
function TestHasOwn(handler) {
|
|
TestWithProxies(TestHasOwn2, handler)
|
|
}
|
|
|
|
function TestHasOwn2(handler, create) {
|
|
var o = create(handler)
|
|
assertTrue(Object.prototype.hasOwnProperty.call(o, "a"))
|
|
assertEquals("a", key)
|
|
assertTrue(Object.prototype.hasOwnProperty.call(o, 99))
|
|
assertEquals("99", key)
|
|
assertFalse(Object.prototype.hasOwnProperty.call(o, "z"))
|
|
assertEquals("z", key)
|
|
}
|
|
|
|
TestHasOwn({
|
|
hasOwn: function(k) { key = k; return k < "z" }
|
|
})
|
|
|
|
TestHasOwn({
|
|
hasOwn: function(k) { return this.hasOwn2(k) },
|
|
hasOwn2: function(k) { key = k; return k < "z" }
|
|
})
|
|
|
|
TestHasOwn({
|
|
getOwnPropertyDescriptor: function(k) {
|
|
key = k; return k < "z" ? {value: 42} : void 0
|
|
}
|
|
})
|
|
|
|
TestHasOwn({
|
|
getOwnPropertyDescriptor: function(k) {
|
|
return this.getOwnPropertyDescriptor2(k)
|
|
},
|
|
getOwnPropertyDescriptor2: function(k) {
|
|
key = k; return k < "z" ? {value: 42} : void 0
|
|
}
|
|
})
|
|
|
|
TestHasOwn({
|
|
getOwnPropertyDescriptor: function(k) {
|
|
key = k; return k < "z" ? {get value() { return 42 }} : void 0
|
|
}
|
|
})
|
|
|
|
TestHasOwn({
|
|
hasOwn: undefined,
|
|
getOwnPropertyDescriptor: function(k) {
|
|
key = k; return k < "z" ? {value: 42} : void 0
|
|
}
|
|
})
|
|
|
|
TestHasOwn(Proxy.create({
|
|
get: function(pr, pk) {
|
|
return function(k) { key = k; return k < "z" }
|
|
}
|
|
}))
|
|
|
|
|
|
|
|
// Instanceof (instanceof)
|
|
|
|
function TestInstanceof() {
|
|
var o = {}
|
|
var p1 = Proxy.create({})
|
|
var p2 = Proxy.create({}, o)
|
|
var p3 = Proxy.create({}, p2)
|
|
|
|
var f0 = function() {}
|
|
f0.prototype = o
|
|
var f1 = function() {}
|
|
f1.prototype = p1
|
|
var f2 = function() {}
|
|
f2.prototype = p2
|
|
|
|
assertTrue(o instanceof Object)
|
|
assertFalse(o instanceof f0)
|
|
assertFalse(o instanceof f1)
|
|
assertFalse(o instanceof f2)
|
|
assertFalse(p1 instanceof Object)
|
|
assertFalse(p1 instanceof f0)
|
|
assertFalse(p1 instanceof f1)
|
|
assertFalse(p1 instanceof f2)
|
|
assertTrue(p2 instanceof Object)
|
|
assertTrue(p2 instanceof f0)
|
|
assertFalse(p2 instanceof f1)
|
|
assertFalse(p2 instanceof f2)
|
|
assertTrue(p3 instanceof Object)
|
|
assertTrue(p3 instanceof f0)
|
|
assertFalse(p3 instanceof f1)
|
|
assertTrue(p3 instanceof f2)
|
|
|
|
var f = Proxy.createFunction({}, function() {})
|
|
assertTrue(f instanceof Function)
|
|
}
|
|
|
|
TestInstanceof()
|
|
|
|
|
|
|
|
// Prototype (Object.getPrototypeOf, Object.prototype.isPrototypeOf).
|
|
|
|
function TestPrototype() {
|
|
var o = {}
|
|
var p1 = Proxy.create({})
|
|
var p2 = Proxy.create({}, o)
|
|
var p3 = Proxy.create({}, p2)
|
|
var p4 = Proxy.create({}, 666)
|
|
|
|
assertSame(Object.getPrototypeOf(o), Object.prototype)
|
|
assertSame(Object.getPrototypeOf(p1), null)
|
|
assertSame(Object.getPrototypeOf(p2), o)
|
|
assertSame(Object.getPrototypeOf(p3), p2)
|
|
assertSame(Object.getPrototypeOf(p4), null)
|
|
|
|
assertTrue(Object.prototype.isPrototypeOf(o))
|
|
assertFalse(Object.prototype.isPrototypeOf(p1))
|
|
assertTrue(Object.prototype.isPrototypeOf(p2))
|
|
assertTrue(Object.prototype.isPrototypeOf(p3))
|
|
assertFalse(Object.prototype.isPrototypeOf(p4))
|
|
assertTrue(Object.prototype.isPrototypeOf.call(Object.prototype, o))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(Object.prototype, p1))
|
|
assertTrue(Object.prototype.isPrototypeOf.call(Object.prototype, p2))
|
|
assertTrue(Object.prototype.isPrototypeOf.call(Object.prototype, p3))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(Object.prototype, p4))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(o, o))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(o, p1))
|
|
assertTrue(Object.prototype.isPrototypeOf.call(o, p2))
|
|
assertTrue(Object.prototype.isPrototypeOf.call(o, p3))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(o, p4))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(p1, p1))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(p1, o))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(p1, p2))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(p1, p3))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(p1, p4))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(p2, p1))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(p2, p2))
|
|
assertTrue(Object.prototype.isPrototypeOf.call(p2, p3))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(p2, p4))
|
|
assertFalse(Object.prototype.isPrototypeOf.call(p3, p2))
|
|
|
|
var f = Proxy.createFunction({}, function() {})
|
|
assertSame(Object.getPrototypeOf(f), Function.prototype)
|
|
assertTrue(Object.prototype.isPrototypeOf(f))
|
|
assertTrue(Object.prototype.isPrototypeOf.call(Function.prototype, f))
|
|
}
|
|
|
|
TestPrototype()
|
|
|
|
|
|
|
|
// Property names (Object.getOwnPropertyNames, Object.keys).
|
|
|
|
function TestPropertyNames(names, handler) {
|
|
TestWithProxies(TestPropertyNames2, [names, handler])
|
|
}
|
|
|
|
function TestPropertyNames2(names_handler, create) {
|
|
var p = create(names_handler[1])
|
|
assertArrayEquals(names_handler[0], Object.getOwnPropertyNames(p))
|
|
}
|
|
|
|
TestPropertyNames([], {
|
|
getOwnPropertyNames: function() { return [] }
|
|
})
|
|
|
|
TestPropertyNames(["a", "zz", " ", "0"], {
|
|
getOwnPropertyNames: function() { return ["a", "zz", " ", 0] }
|
|
})
|
|
|
|
TestPropertyNames(["throw", "function "], {
|
|
getOwnPropertyNames: function() { return this.getOwnPropertyNames2() },
|
|
getOwnPropertyNames2: function() { return ["throw", "function "] }
|
|
})
|
|
|
|
TestPropertyNames(["[object Object]"], {
|
|
get getOwnPropertyNames() {
|
|
return function() { return [{}] }
|
|
}
|
|
})
|
|
|
|
|
|
function TestKeys(names, handler) {
|
|
TestWithProxies(TestKeys2, [names, handler])
|
|
}
|
|
|
|
function TestKeys2(names_handler, create) {
|
|
var p = create(names_handler[1])
|
|
assertArrayEquals(names_handler[0], Object.keys(p))
|
|
}
|
|
|
|
TestKeys([], {
|
|
keys: function() { return [] }
|
|
})
|
|
|
|
TestKeys(["a", "zz", " ", "0"], {
|
|
keys: function() { return ["a", "zz", " ", 0] }
|
|
})
|
|
|
|
TestKeys(["throw", "function "], {
|
|
keys: function() { return this.keys2() },
|
|
keys2: function() { return ["throw", "function "] }
|
|
})
|
|
|
|
TestKeys(["[object Object]"], {
|
|
get keys() {
|
|
return function() { return [{}] }
|
|
}
|
|
})
|
|
|
|
TestKeys(["a", "0"], {
|
|
getOwnPropertyNames: function() { return ["a", 23, "zz", "", 0] },
|
|
getOwnPropertyDescriptor: function(k) { return {enumerable: k.length == 1} }
|
|
})
|
|
|
|
TestKeys(["23", "zz", ""], {
|
|
getOwnPropertyNames: function() { return this.getOwnPropertyNames2() },
|
|
getOwnPropertyNames2: function() { return ["a", 23, "zz", "", 0] },
|
|
getOwnPropertyDescriptor: function(k) {
|
|
return this.getOwnPropertyDescriptor2(k)
|
|
},
|
|
getOwnPropertyDescriptor2: function(k) { return {enumerable: k.length != 1} }
|
|
})
|
|
|
|
TestKeys(["a", "b", "c", "5"], {
|
|
get getOwnPropertyNames() {
|
|
return function() { return ["0", 4, "a", "b", "c", 5] }
|
|
},
|
|
get getOwnPropertyDescriptor() {
|
|
return function(k) { return {enumerable: k >= "44"} }
|
|
}
|
|
})
|
|
|
|
TestKeys([], {
|
|
get getOwnPropertyNames() {
|
|
return function() { return ["a", "b", "c"] }
|
|
},
|
|
getOwnPropertyDescriptor: function(k) { return {} }
|
|
})
|
|
|
|
|
|
|
|
// Fixing (Object.freeze, Object.seal, Object.preventExtensions,
|
|
// Object.isFrozen, Object.isSealed, Object.isExtensible)
|
|
|
|
function TestFix(names, handler) {
|
|
var proto = {p: 77}
|
|
var assertFixing = function(o, s, f, e) {
|
|
assertEquals(s, Object.isSealed(o))
|
|
assertEquals(f, Object.isFrozen(o))
|
|
assertEquals(e, Object.isExtensible(o))
|
|
}
|
|
|
|
var o1 = Proxy.create(handler, proto)
|
|
assertFixing(o1, false, false, true)
|
|
Object.seal(o1)
|
|
assertFixing(o1, true, names.length === 0, false)
|
|
assertArrayEquals(names.sort(), Object.getOwnPropertyNames(o1).sort())
|
|
assertArrayEquals(names.filter(function(x) {return x < "z"}).sort(),
|
|
Object.keys(o1).sort())
|
|
assertEquals(proto, Object.getPrototypeOf(o1))
|
|
assertEquals(77, o1.p)
|
|
for (var n in o1) {
|
|
var desc = Object.getOwnPropertyDescriptor(o1, n)
|
|
if (desc !== undefined) assertFalse(desc.configurable)
|
|
}
|
|
|
|
var o2 = Proxy.create(handler, proto)
|
|
assertFixing(o2, false, false, true)
|
|
Object.freeze(o2)
|
|
assertFixing(o2, true, true, false)
|
|
assertArrayEquals(names.sort(), Object.getOwnPropertyNames(o2).sort())
|
|
assertArrayEquals(names.filter(function(x) {return x < "z"}).sort(),
|
|
Object.keys(o2).sort())
|
|
assertEquals(proto, Object.getPrototypeOf(o2))
|
|
assertEquals(77, o2.p)
|
|
for (var n in o2) {
|
|
var desc = Object.getOwnPropertyDescriptor(o2, n)
|
|
if (desc !== undefined) assertFalse(desc.writable)
|
|
if (desc !== undefined) assertFalse(desc.configurable)
|
|
}
|
|
|
|
var o3 = Proxy.create(handler, proto)
|
|
assertFixing(o3, false, false, true)
|
|
Object.preventExtensions(o3)
|
|
assertFixing(o3, names.length === 0, names.length === 0, false)
|
|
assertArrayEquals(names.sort(), Object.getOwnPropertyNames(o3).sort())
|
|
assertArrayEquals(names.filter(function(x) {return x < "z"}).sort(),
|
|
Object.keys(o3).sort())
|
|
assertEquals(proto, Object.getPrototypeOf(o3))
|
|
assertEquals(77, o3.p)
|
|
}
|
|
|
|
TestFix([], {
|
|
fix: function() { return {} }
|
|
})
|
|
|
|
TestFix(["a", "b", "c", "d", "zz"], {
|
|
fix: function() {
|
|
return {
|
|
a: {value: "a", writable: true, configurable: false, enumerable: true},
|
|
b: {value: 33, writable: false, configurable: false, enumerable: true},
|
|
c: {value: 0, writable: true, configurable: true, enumerable: true},
|
|
d: {value: true, writable: false, configurable: true, enumerable: true},
|
|
zz: {value: 0, enumerable: false}
|
|
}
|
|
}
|
|
})
|
|
|
|
TestFix(["a"], {
|
|
fix: function() { return this.fix2() },
|
|
fix2: function() {
|
|
return {a: {value: 4, writable: true, configurable: true, enumerable: true}}
|
|
}
|
|
})
|
|
|
|
TestFix(["b"], {
|
|
get fix() {
|
|
return function() {
|
|
return {b: {configurable: true, writable: true, enumerable: true}}
|
|
}
|
|
}
|
|
})
|
|
|
|
|
|
function TestFixFunction(fix) {
|
|
var f1 = Proxy.createFunction({
|
|
fix: function() { return {} }
|
|
}, function() {})
|
|
fix(f1)
|
|
assertEquals(0, f1.length)
|
|
|
|
var f2 = Proxy.createFunction({
|
|
fix: function() { return {length: {value: 3}} }
|
|
}, function() {})
|
|
fix(f2)
|
|
assertEquals(3, f2.length)
|
|
|
|
var f3 = Proxy.createFunction({
|
|
fix: function() { return {length: {value: "huh"}} }
|
|
}, function() {})
|
|
fix(f3)
|
|
assertEquals(0, f1.length)
|
|
}
|
|
|
|
TestFixFunction(Object.seal)
|
|
TestFixFunction(Object.freeze)
|
|
TestFixFunction(Object.preventExtensions)
|
|
|
|
|
|
|
|
// String conversion (Object.prototype.toString,
|
|
// Object.prototype.toLocaleString,
|
|
// Function.prototype.toString)
|
|
|
|
var key
|
|
|
|
function TestToString(handler) {
|
|
var o = Proxy.create(handler)
|
|
key = ""
|
|
assertEquals("[object Object]", Object.prototype.toString.call(o))
|
|
assertEquals("", key)
|
|
assertEquals("my_proxy", Object.prototype.toLocaleString.call(o))
|
|
assertEquals("toString", key)
|
|
|
|
var f = Proxy.createFunction(handler, function() {})
|
|
key = ""
|
|
assertEquals("[object Function]", Object.prototype.toString.call(f))
|
|
assertEquals("", key)
|
|
assertEquals("my_proxy", Object.prototype.toLocaleString.call(o))
|
|
assertEquals("toString", key)
|
|
assertDoesNotThrow(function(){ Function.prototype.toString.call(f) })
|
|
}
|
|
|
|
TestToString({
|
|
get: function(r, k) { key = k; return function() { return "my_proxy" } }
|
|
})
|
|
|
|
TestToString({
|
|
get: function(r, k) { return this.get2(r, k) },
|
|
get2: function(r, k) { key = k; return function() { return "my_proxy" } }
|
|
})
|
|
|
|
TestToString(Proxy.create({
|
|
get: function(pr, pk) {
|
|
return function(r, k) { key = k; return function() { return "my_proxy" } }
|
|
}
|
|
}))
|
|
|
|
|
|
|
|
// Value conversion (Object.prototype.toValue)
|
|
|
|
function TestValueOf(handler) {
|
|
TestWithProxies(TestValueOf2, handler)
|
|
}
|
|
|
|
function TestValueOf2(handler, create) {
|
|
var o = create(handler)
|
|
assertSame(o, Object.prototype.valueOf.call(o))
|
|
}
|
|
|
|
TestValueOf({})
|
|
|
|
|
|
|
|
// Enumerability (Object.prototype.propertyIsEnumerable)
|
|
|
|
var key
|
|
|
|
function TestIsEnumerable(handler) {
|
|
TestWithProxies(TestIsEnumerable2, handler)
|
|
}
|
|
|
|
function TestIsEnumerable2(handler, create) {
|
|
var o = create(handler)
|
|
assertTrue(Object.prototype.propertyIsEnumerable.call(o, "a"))
|
|
assertEquals("a", key)
|
|
assertTrue(Object.prototype.propertyIsEnumerable.call(o, 2))
|
|
assertEquals("2", key)
|
|
assertFalse(Object.prototype.propertyIsEnumerable.call(o, "z"))
|
|
assertEquals("z", key)
|
|
}
|
|
|
|
TestIsEnumerable({
|
|
getOwnPropertyDescriptor: function(k) {
|
|
key = k; return {enumerable: k < "z", configurable: true}
|
|
},
|
|
})
|
|
|
|
TestIsEnumerable({
|
|
getOwnPropertyDescriptor: function(k) {
|
|
return this.getOwnPropertyDescriptor2(k)
|
|
},
|
|
getOwnPropertyDescriptor2: function(k) {
|
|
key = k; return {enumerable: k < "z", configurable: true}
|
|
},
|
|
})
|
|
|
|
TestIsEnumerable({
|
|
getOwnPropertyDescriptor: function(k) {
|
|
key = k; return {get enumerable() { return k < "z" }, configurable: true}
|
|
},
|
|
})
|
|
|
|
TestIsEnumerable(Proxy.create({
|
|
get: function(pr, pk) {
|
|
return function(k) {
|
|
key = k; return {enumerable: k < "z", configurable: true}
|
|
}
|
|
}
|
|
}))
|
|
|
|
|
|
|
|
// Calling (call, Function.prototype.call, Function.prototype.apply,
|
|
// Function.prototype.bind).
|
|
|
|
var global = this
|
|
var receiver
|
|
|
|
function TestCall(isStrict, callTrap) {
|
|
assertEquals(42, callTrap(5, 37))
|
|
// TODO(rossberg): unrelated bug: this does not succeed for optimized code.
|
|
// assertEquals(isStrict ? undefined : global, receiver)
|
|
|
|
var f = Proxy.createFunction({fix: function() { return {} }}, callTrap)
|
|
|
|
receiver = 333
|
|
assertEquals(42, f(11, 31))
|
|
assertEquals(isStrict ? undefined : global, receiver)
|
|
var o = {}
|
|
assertEquals(42, Function.prototype.call.call(f, o, 20, 22))
|
|
assertEquals(o, receiver)
|
|
assertEquals(43, Function.prototype.call.call(f, null, 20, 23))
|
|
assertEquals(isStrict ? null : global, receiver)
|
|
assertEquals(44, Function.prototype.call.call(f, 2, 21, 23))
|
|
assertEquals(2, receiver.valueOf())
|
|
receiver = 333
|
|
assertEquals(32, Function.prototype.apply.call(f, o, [17, 15]))
|
|
assertEquals(o, receiver)
|
|
var ff = Function.prototype.bind.call(f, o, 12)
|
|
receiver = 333
|
|
assertEquals(42, ff(30))
|
|
assertEquals(o, receiver)
|
|
receiver = 333
|
|
assertEquals(32, Function.prototype.apply.call(ff, {}, [20]))
|
|
assertEquals(o, receiver)
|
|
|
|
Object.freeze(f)
|
|
|
|
receiver = 333
|
|
assertEquals(42, f(11, 31))
|
|
// TODO(rossberg): unrelated bug: this does not succeed for optimized code.
|
|
// assertEquals(isStrict ? undefined : global, receiver)
|
|
receiver = 333
|
|
assertEquals(42, Function.prototype.call.call(f, o, 20, 22))
|
|
assertEquals(o, receiver)
|
|
receiver = 333
|
|
assertEquals(32, Function.prototype.apply.call(f, o, [17, 15]))
|
|
assertEquals(o, receiver)
|
|
receiver = 333
|
|
assertEquals(42, ff(30))
|
|
assertEquals(o, receiver)
|
|
receiver = 333
|
|
assertEquals(32, Function.prototype.apply.call(ff, {}, [20]))
|
|
assertEquals(o, receiver)
|
|
}
|
|
|
|
TestCall(false, function(x, y) {
|
|
receiver = this; return x + y
|
|
})
|
|
|
|
TestCall(true, function(x, y) {
|
|
"use strict";
|
|
receiver = this; return x + y
|
|
})
|
|
|
|
TestCall(false, Proxy.createFunction({}, function(x, y) {
|
|
receiver = this; return x + y
|
|
}))
|
|
|
|
TestCall(true, Proxy.createFunction({}, function(x, y) {
|
|
"use strict";
|
|
receiver = this; return x + y
|
|
}))
|
|
|
|
var p = Proxy.createFunction({fix: function() {return {}}}, function(x, y) {
|
|
receiver = this; return x + y
|
|
})
|
|
TestCall(false, p)
|
|
Object.freeze(p)
|
|
TestCall(false, p)
|