a71ab76a60
This isn't used outside of tests, so let's just remove it. Change-Id: I06b7ec11911fd8ebc3bbabcba16d0c2a3fafddab Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2968413 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Commit-Queue: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#75220}
610 lines
18 KiB
JavaScript
610 lines
18 KiB
JavaScript
// Copyright 2011 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: --allow-natives-syntax
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var handler = {
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get : function(r, n) { return n == "length" ? 2 : undefined }
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}
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// Calling (call, Function.prototype.call, Function.prototype.apply,
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// Function.prototype.bind).
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var global_object = this
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var receiver
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function TestCall(isStrict, callTrap) {
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assertEquals(42, callTrap(undefined, undefined, [5, 37]))
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var handler = {
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get: function(r, k) {
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return k == "length" ? 2 : Function.prototype[k]
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},
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apply: callTrap
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}
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var f = new Proxy(()=>{}, handler)
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var o = {f: f}
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global_object.f = f
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receiver = 333
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assertEquals(42, f(11, 31))
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receiver = 333
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assertEquals(42, o.f(10, 32))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, o["f"](9, 33))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, (1, o).f(8, 34))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, (1, o)["f"](7, 35))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, f.call(o, 32, 10))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, f.call(undefined, 33, 9))
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receiver = 333
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assertEquals(42, f.call(null, 33, 9))
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receiver = 333
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assertEquals(44, f.call(2, 21, 23))
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assertSame(2, receiver.valueOf())
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receiver = 333
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assertEquals(42, Function.prototype.call.call(f, o, 20, 22))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(43, Function.prototype.call.call(f, null, 20, 23))
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assertEquals(44, Function.prototype.call.call(f, 2, 21, 23))
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assertEquals(2, receiver.valueOf())
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receiver = 333
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assertEquals(32, f.apply(o, [16, 16]))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(32, Function.prototype.apply.call(f, o, [17, 15]))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, %Call(f, o, 11, 31));
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, %Call(f, null, 11, 31));
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receiver = 333
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var ff = Function.prototype.bind.call(f, o, 12)
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assertTrue(ff.length <= 1) // TODO(rossberg): Not spec'ed yet, be lax.
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receiver = 333
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assertEquals(42, ff(30))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(33, Function.prototype.call.call(ff, {}, 21))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(32, Function.prototype.apply.call(ff, {}, [20]))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(23, %Call(ff, {}, 11));
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assertSame(o, receiver)
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receiver = 333
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assertEquals(23, %Call(ff, {}, 11, 3));
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assertSame(o, receiver)
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receiver = 333
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var fff = Function.prototype.bind.call(ff, o, 30)
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assertEquals(0, fff.length)
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receiver = 333
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assertEquals(42, fff())
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, Function.prototype.call.call(fff, {}))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, Function.prototype.apply.call(fff, {}))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, %Call(fff, {}));
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, %Call(fff, {}, 11, 3))
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assertSame(o, receiver)
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receiver = 333
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var f = new Proxy(()=>{}, {apply: callTrap})
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receiver = 333
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assertEquals(42, f(11, 31))
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var o = {f: f}
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receiver = 333
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assertEquals(42, o.f(10, 32))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, o["f"](9, 33))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, (1, o).f(8, 34))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, (1, o)["f"](7, 35))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(42, Function.prototype.call.call(f, o, 20, 22))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(32, Function.prototype.apply.call(f, o, [17, 15]))
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assertSame(o, receiver)
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receiver = 333
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assertEquals(23, %Call(f, o, 11, 12))
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assertSame(o, receiver)
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receiver = 333
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}
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TestCall(false, function(_, that, [x, y]) {
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receiver = that
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return x + y
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})
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TestCall(true, function(_, that, args) {
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"use strict"
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receiver = that
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return args[0] + args[1]
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})
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TestCall(false, function() {
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receiver = arguments[1]
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return arguments[2][0] + arguments[2][1]
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})
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TestCall(false, new Proxy(function(_, that, [x, y]) {
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receiver = that
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return x + y
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}, handler))
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TestCall(true, new Proxy(function(_, that, args) {
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"use strict"
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receiver = that
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return args[0] + args[1]
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}, handler))
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TestCall(false, Object.freeze(new Proxy(function(_, that, [x, y]) {
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receiver = that
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return x + y
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}, handler)))
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// Using intrinsics as call traps.
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function TestCallIntrinsic(type, callTrap) {
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var f = new Proxy(()=>{}, {apply: (_, that, args) => callTrap(...args)})
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var x = f()
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assertTrue(typeof x == type)
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}
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TestCallIntrinsic("boolean", Boolean)
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TestCallIntrinsic("number", Number)
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TestCallIntrinsic("string", String)
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TestCallIntrinsic("object", Object)
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TestCallIntrinsic("function", Function)
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// Throwing from call trap.
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function TestCallThrow(callTrap) {
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var f = new Proxy(()=>{}, {apply: callTrap})
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assertThrowsEquals(() => f(11), "myexn")
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assertThrowsEquals(() => ({x: f}).x(11), "myexn")
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assertThrowsEquals(() => ({x: f})["x"](11), "myexn")
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assertThrowsEquals(() => Function.prototype.call.call(f, {}, 2), "myexn")
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assertThrowsEquals(() => Function.prototype.apply.call(f, {}, [1]), "myexn")
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assertThrowsEquals(() => %Call(f, {}), "myexn")
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assertThrowsEquals(() => %Call(f, {}, 1, 2), "myexn")
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var f = Object.freeze(new Proxy(()=>{}, {apply: callTrap}))
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assertThrowsEquals(() => f(11), "myexn")
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assertThrowsEquals(() => ({x: f}).x(11), "myexn")
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assertThrowsEquals(() => ({x: f})["x"](11), "myexn")
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assertThrowsEquals(() => Function.prototype.call.call(f, {}, 2), "myexn")
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assertThrowsEquals(() => Function.prototype.apply.call(f, {}, [1]), "myexn")
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assertThrowsEquals(() => %Call(f, {}), "myexn")
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assertThrowsEquals(() => %Call(f, {}, 1, 2), "myexn")
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}
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TestCallThrow(function() { throw "myexn" })
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TestCallThrow(new Proxy(() => {throw "myexn"}, {}))
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TestCallThrow(Object.freeze(new Proxy(() => {throw "myexn"}, {})))
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// Construction (new).
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var prototype = {myprop: 0}
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var receiver
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var handlerWithPrototype = {
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get: function(r, n) {
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if (n == "length") return 2;
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assertEquals("prototype", n);
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return prototype;
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}
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}
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var handlerSansPrototype = {
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get: function(r, n) {
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if (n == "length") return 2;
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assertEquals("prototype", n);
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return undefined;
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}
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}
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function ReturnUndef(_, args, newt) {
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"use strict";
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newt.sum = args[0] + args[1];
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}
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function ReturnThis(x, y) {
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"use strict";
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receiver = this;
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this.sum = x + y;
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return this;
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}
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function ReturnNew(_, args, newt) {
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"use strict";
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return {sum: args[0] + args[1]};
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}
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function ReturnNewWithProto(_, args, newt) {
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"use strict";
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var result = Object.create(prototype);
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result.sum = args[0] + args[1];
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return result;
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}
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function TestConstruct(proto, constructTrap) {
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TestConstruct2(proto, constructTrap, handlerWithPrototype)
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TestConstruct2(proto, constructTrap, handlerSansPrototype)
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}
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function TestConstruct2(proto, constructTrap, handler) {
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var f = new Proxy(function(){}, {construct: constructTrap})
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var o = new f(11, 31)
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assertEquals(42, o.sum)
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assertSame(proto, Object.getPrototypeOf(o))
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var f = Object.freeze(new Proxy(function(){}, {construct: constructTrap}))
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var o = new f(11, 32)
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assertEquals(43, o.sum)
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assertSame(proto, Object.getPrototypeOf(o))
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}
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TestConstruct(Object.prototype, ReturnNew)
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TestConstruct(prototype, ReturnNewWithProto)
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TestConstruct(Object.prototype, new Proxy(ReturnNew, {}))
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TestConstruct(prototype, new Proxy(ReturnNewWithProto, {}))
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TestConstruct(Object.prototype, Object.freeze(new Proxy(ReturnNew, {})))
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TestConstruct(prototype, Object.freeze(new Proxy(ReturnNewWithProto, {})))
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// Throwing from the construct trap.
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function TestConstructThrow(trap) {
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var f = new Proxy(function(){}, {construct: trap});
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assertThrowsEquals(() => new f(11), "myexn")
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Object.freeze(f)
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assertThrowsEquals(() => new f(11), "myexn")
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}
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TestConstructThrow(function() { throw "myexn" })
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TestConstructThrow(new Proxy(function() { throw "myexn" }, {}))
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TestConstructThrow(Object.freeze(new Proxy(function() { throw "myexn" }, {})))
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// Using function proxies as getters and setters.
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var value
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var receiver
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function TestAccessorCall(getterCallTrap, setterCallTrap) {
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var pgetter = new Proxy(()=>{}, {apply: getterCallTrap})
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var psetter = new Proxy(()=>{}, {apply: setterCallTrap})
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var o = {}
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var oo = Object.create(o)
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Object.defineProperty(o, "a", {get: pgetter, set: psetter})
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Object.defineProperty(o, "b", {get: pgetter})
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Object.defineProperty(o, "c", {set: psetter})
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Object.defineProperty(o, "3", {get: pgetter, set: psetter})
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Object.defineProperty(oo, "a", {value: 43})
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receiver = ""
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assertEquals(42, o.a)
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assertSame(o, receiver)
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receiver = ""
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assertEquals(42, o.b)
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assertSame(o, receiver)
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receiver = ""
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assertEquals(undefined, o.c)
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assertEquals("", receiver)
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receiver = ""
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assertEquals(42, o["a"])
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assertSame(o, receiver)
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receiver = ""
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assertEquals(42, o[3])
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assertSame(o, receiver)
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receiver = ""
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assertEquals(43, oo.a)
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assertEquals("", receiver)
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receiver = ""
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assertEquals(42, oo.b)
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assertSame(oo, receiver)
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receiver = ""
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assertEquals(undefined, oo.c)
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assertEquals("", receiver)
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receiver = ""
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assertEquals(43, oo["a"])
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assertEquals("", receiver)
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receiver = ""
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assertEquals(42, oo[3])
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assertSame(oo, receiver)
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receiver = ""
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assertEquals(50, o.a = 50)
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assertSame(o, receiver)
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assertEquals(50, value)
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receiver = ""
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assertEquals(51, o.b = 51)
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assertEquals("", receiver)
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assertEquals(50, value) // no setter
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assertThrows(function() { "use strict"; o.b = 51 }, TypeError)
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receiver = ""
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assertEquals(52, o.c = 52)
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assertSame(o, receiver)
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assertEquals(52, value)
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receiver = ""
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assertEquals(53, o["a"] = 53)
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assertSame(o, receiver)
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assertEquals(53, value)
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receiver = ""
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assertEquals(54, o[3] = 54)
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assertSame(o, receiver)
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assertEquals(54, value)
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value = 0
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receiver = ""
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assertEquals(60, oo.a = 60)
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assertEquals("", receiver)
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assertEquals(0, value) // oo has own 'a'
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assertEquals(61, oo.b = 61)
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assertSame("", receiver)
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assertEquals(0, value) // no setter
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assertThrows(function() { "use strict"; oo.b = 61 }, TypeError)
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receiver = ""
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assertEquals(62, oo.c = 62)
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assertSame(oo, receiver)
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assertEquals(62, value)
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receiver = ""
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assertEquals(63, oo["c"] = 63)
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assertSame(oo, receiver)
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assertEquals(63, value)
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receiver = ""
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assertEquals(64, oo[3] = 64)
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assertSame(oo, receiver)
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assertEquals(64, value)
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}
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TestAccessorCall(
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function(_, that) { receiver = that; return 42 },
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function(_, that, [x]) { receiver = that; value = x }
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)
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TestAccessorCall(
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function(_, that) { "use strict"; receiver = that; return 42 },
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function(_, that, args) { "use strict"; receiver = that; value = args[0] }
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)
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TestAccessorCall(
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new Proxy(function(_, that) { receiver = that; return 42 }, {}),
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new Proxy(function(_, that, [x]) { receiver = that; value = x }, {})
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)
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TestAccessorCall(
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Object.freeze(
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new Proxy(function(_, that) { receiver = that; return 42 }, {})),
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Object.freeze(
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new Proxy(function(_, that, [x]) { receiver = that; value = x }, {}))
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)
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// Passing a proxy function to higher-order library functions.
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function TestHigherOrder(f) {
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assertEquals(6, [6, 2].map(f)[0])
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assertEquals(4, [5, 2].reduce(f, 4))
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assertTrue([1, 2].some(f))
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assertEquals("a.b.c", "a.b.c".replace(".", f))
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}
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TestHigherOrder(function(x) { return x })
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TestHigherOrder(function(x) { "use strict"; return x })
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TestHigherOrder(new Proxy(function(x) { return x }, {}))
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TestHigherOrder(Object.freeze(new Proxy(function(x) { return x }, {})))
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// TODO(rossberg): Ultimately, I want to have the following test function
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// run through, but it currently fails on so many cases (some not even
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// involving proxies), that I leave that for later...
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/*
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function TestCalls() {
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var handler = {
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get: function(r, k) {
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return k == "length" ? 2 : Function.prototype[k]
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}
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}
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var bind = Function.prototype.bind
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var o = {}
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var traps = [
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function(x, y) {
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return {receiver: this, result: x + y, strict: false}
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},
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function(x, y) { "use strict";
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return {receiver: this, result: x + y, strict: true}
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},
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function() {
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var x = arguments[0], y = arguments[1]
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return {receiver: this, result: x + y, strict: false}
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},
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Proxy.createFunction(handler, function(x, y) {
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return {receiver: this, result: x + y, strict: false}
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}),
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Proxy.createFunction(handler, function() {
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var x = arguments[0], y = arguments[1]
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return {receiver: this, result: x + y, strict: false}
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}),
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Proxy.createFunction(handler, function(x, y) { "use strict"
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return {receiver: this, result: x + y, strict: true}
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}),
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CreateFrozen(handler, function(x, y) {
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return {receiver: this, result: x + y, strict: false}
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}),
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CreateFrozen(handler, function(x, y) { "use strict"
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return {receiver: this, result: x + y, strict: true}
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}),
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]
|
|
var creates = [
|
|
function(trap) { return trap },
|
|
function(trap) { return CreateFrozen({}, callTrap) },
|
|
function(trap) { return Proxy.createFunction(handler, callTrap) },
|
|
function(trap) {
|
|
return Proxy.createFunction(handler, CreateFrozen({}, callTrap))
|
|
},
|
|
function(trap) {
|
|
return Proxy.createFunction(handler, Proxy.createFunction(handler, callTrap))
|
|
},
|
|
]
|
|
var binds = [
|
|
function(f, o, x, y) { return f },
|
|
function(f, o, x, y) { return bind.call(f, o) },
|
|
function(f, o, x, y) { return bind.call(f, o, x) },
|
|
function(f, o, x, y) { return bind.call(f, o, x, y) },
|
|
function(f, o, x, y) { return bind.call(f, o, x, y, 5) },
|
|
function(f, o, x, y) { return bind.call(bind.call(f, o), {}, x, y) },
|
|
function(f, o, x, y) { return bind.call(bind.call(f, o, x), {}, y) },
|
|
function(f, o, x, y) { return bind.call(bind.call(f, o, x, y), {}, 5) },
|
|
]
|
|
var calls = [
|
|
function(f, x, y) { return f(x, y) },
|
|
function(f, x, y) { var g = f; return g(x, y) },
|
|
function(f, x, y) { with ({}) return f(x, y) },
|
|
function(f, x, y) { var g = f; with ({}) return g(x, y) },
|
|
function(f, x, y, o) { with (o) return f(x, y) },
|
|
function(f, x, y, o) { return f.call(o, x, y) },
|
|
function(f, x, y, o) { return f.apply(o, [x, y]) },
|
|
function(f, x, y, o) { return Function.prototype.call.call(f, o, x, y) },
|
|
function(f, x, y, o) { return Function.prototype.apply.call(f, o, [x, y]) },
|
|
function(f, x, y, o) { return %Call(f, o, x, y) },
|
|
function(f, x, y, o) { return %Apply(f, o, [null, x, y, null], 1, 2) },
|
|
function(f, x, y, o) { return %Apply(f, o, arguments, 2, 2) },
|
|
function(f, x, y, o) { if (typeof o == "object") return o.f(x, y) },
|
|
function(f, x, y, o) { if (typeof o == "object") return o["f"](x, y) },
|
|
function(f, x, y, o) { if (typeof o == "object") return (1, o).f(x, y) },
|
|
function(f, x, y, o) { if (typeof o == "object") return (1, o)["f"](x, y) },
|
|
]
|
|
var receivers = [o, global_object, undefined, null, 2, "bla", true]
|
|
var expectedSloppies = [o, global_object, global_object, global_object]
|
|
|
|
for (var t = 0; t < traps.length; ++t) {
|
|
for (var i = 0; i < creates.length; ++i) {
|
|
for (var j = 0; j < binds.length; ++j) {
|
|
for (var k = 0; k < calls.length; ++k) {
|
|
for (var m = 0; m < receivers.length; ++m) {
|
|
for (var n = 0; n < receivers.length; ++n) {
|
|
var bound = receivers[m]
|
|
var receiver = receivers[n]
|
|
var func = binds[j](creates[i](traps[t]), bound, 31, 11)
|
|
var expected = j > 0 ? bound : receiver
|
|
var expectedSloppy = expectedSloppies[j > 0 ? m : n]
|
|
o.f = func
|
|
global_object.f = func
|
|
var x = calls[k](func, 11, 31, receiver)
|
|
if (x !== undefined) {
|
|
assertEquals(42, x.result)
|
|
if (calls[k].length < 4)
|
|
assertSame(x.strict ? undefined : global_object, x.receiver)
|
|
else if (x.strict)
|
|
assertSame(expected, x.receiver)
|
|
else if (expectedSloppy === undefined)
|
|
assertSame(expected, x.receiver.valueOf())
|
|
else
|
|
assertSame(expectedSloppy, x.receiver)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TestCalls()
|
|
*/
|
|
|
|
var realms = [Realm.create(), Realm.create()];
|
|
Realm.shared = {};
|
|
|
|
Realm.eval(realms[0], "function f(_, that) { return that; };");
|
|
Realm.eval(realms[0], "Realm.shared.f = f;");
|
|
Realm.eval(realms[0], "Realm.shared.fg = this;");
|
|
Realm.eval(realms[1], "function g(_, that) { return that; };");
|
|
Realm.eval(realms[1], "Realm.shared.g = g;");
|
|
Realm.eval(realms[1], "Realm.shared.gg = this;");
|
|
|
|
var fp = new Proxy(()=>{}, {apply: Realm.shared.f});
|
|
var gp = new Proxy(()=>{}, {apply: Realm.shared.g});
|
|
|
|
for (var i = 0; i < 10; i++) {
|
|
assertEquals(undefined, fp());
|
|
assertEquals(undefined, gp());
|
|
|
|
with (this) {
|
|
assertEquals(this, fp());
|
|
assertEquals(this, gp());
|
|
}
|
|
|
|
with ({}) {
|
|
assertEquals(undefined, fp());
|
|
assertEquals(undefined, gp());
|
|
}
|
|
}
|