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106 lines
3.6 KiB
106 lines
3.6 KiB
// Copyright 2013 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 --harmony-symbols
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// Helper.
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function TestWithProxies(test, x, y, z) {
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test(Proxy.create, x, y, z)
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test(function(h) {return Proxy.createFunction(h, function() {})}, x, y, z)
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}
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// No symbols should leak to proxy traps.
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function TestNoSymbolsToTrap(handler) {
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TestWithProxies(TestNoSymbolsToTrap2, handler)
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}
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function TestNoSymbolsToTrap2(create, handler) {
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var p = create(handler)
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var o = Object.create(p)
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var symbol = Symbol("secret")
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assertFalse(symbol in p)
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assertFalse(symbol in o)
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assertEquals(undefined, p[symbol])
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assertEquals(undefined, o[symbol])
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assertEquals(47, p[symbol] = 47)
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assertEquals(47, o[symbol] = 47)
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assertFalse(delete p[symbol])
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assertTrue(delete o[symbol])
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assertTrue(delete o[symbol])
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assertFalse({}.hasOwnProperty.call(p, symbol))
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assertFalse({}.hasOwnProperty.call(o, symbol))
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assertEquals(undefined, Object.getOwnPropertyDescriptor(p, symbol))
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assertEquals(undefined, Object.getOwnPropertyDescriptor(o, symbol))
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}
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TestNoSymbolsToTrap({
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has: assertUnreachable,
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hasOwn: assertUnreachable,
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get: assertUnreachable,
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set: assertUnreachable,
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delete: assertUnreachable,
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getPropertyDescriptor: assertUnreachable,
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getOwnPropertyDescriptor: assertUnreachable,
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defineProperty: assertUnreachable
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})
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// All symbols returned from proxy traps should be filtered.
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function TestNoSymbolsFromTrap(handler) {
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TestWithProxies(TestNoSymbolsFromTrap2, handler)
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}
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function TestNoSymbolsFromTrap2(create, handler) {
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var p = create(handler)
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var o = Object.create(p)
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assertEquals(0, Object.keys(p).length)
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assertEquals(0, Object.keys(o).length)
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assertEquals(0, Object.getOwnPropertyNames(p).length)
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assertEquals(0, Object.getOwnPropertyNames(o).length)
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for (var n in p) assertUnreachable()
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for (var n in o) assertUnreachable()
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}
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function MakeSymbolArray() {
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return [Symbol(), Symbol("a")]
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}
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TestNoSymbolsFromTrap({
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enumerate: MakeSymbolArray,
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keys: MakeSymbolArray,
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getPropertyNames: MakeSymbolArray,
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getOwnPropertyNames: MakeSymbolArray
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})
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