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