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// 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
})
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