Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/test/mjsunit/harmony/proxies-function.js b/test/mjsunit/harmony/proxies-function.js
index c024cef..b2498b8 100644
--- a/test/mjsunit/harmony/proxies-function.js
+++ b/test/mjsunit/harmony/proxies-function.js
@@ -28,747 +28,741 @@
// Flags: --harmony-proxies --allow-natives-syntax
-// Helper.
+// TODO(neis): These tests are temporarily commented out because of ongoing
+// changes to the implementation of proxies.
-function CreateFrozen(handler, callTrap, constructTrap) {
- if (handler.fix === undefined) handler.fix = function() { return {} }
- var f = Proxy.createFunction(handler, callTrap, constructTrap)
- Object.freeze(f)
- return f
-}
-
-// Ensures that checking the "length" property of a function proxy doesn't
-// crash due to lack of a [[Get]] method.
-var handler = {
- get : function(r, n) { return n == "length" ? 2 : undefined }
-}
-
-
-// Calling (call, Function.prototype.call, Function.prototype.apply,
-// Function.prototype.bind).
-
-var global_object = this
-var receiver
-
-function TestCall(isStrict, callTrap) {
- assertEquals(42, callTrap(5, 37))
- assertSame(isStrict ? undefined : global_object, receiver)
-
- var handler = {
- get: function(r, k) {
- return k == "length" ? 2 : Function.prototype[k]
- }
- }
- var f = Proxy.createFunction(handler, callTrap)
- var o = {f: f}
- global_object.f = f
-
- receiver = 333
- assertEquals(42, f(11, 31))
- assertSame(isStrict ? undefined : global_object, receiver)
- receiver = 333
- assertEquals(42, o.f(10, 32))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, o["f"](9, 33))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, (1, o).f(8, 34))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, (1, o)["f"](7, 35))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, f.call(o, 32, 10))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, f.call(undefined, 33, 9))
- assertSame(isStrict ? undefined : global_object, receiver)
- receiver = 333
- assertEquals(42, f.call(null, 33, 9))
- assertSame(isStrict ? null : global_object, receiver)
- receiver = 333
- assertEquals(44, f.call(2, 21, 23))
- assertSame(2, receiver.valueOf())
- receiver = 333
- assertEquals(42, Function.prototype.call.call(f, o, 20, 22))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(43, Function.prototype.call.call(f, null, 20, 23))
- assertSame(isStrict ? null : global_object, receiver)
- assertEquals(44, Function.prototype.call.call(f, 2, 21, 23))
- assertEquals(2, receiver.valueOf())
- receiver = 333
- assertEquals(32, f.apply(o, [16, 16]))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(32, Function.prototype.apply.call(f, o, [17, 15]))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %Call(o, 11, 31, f))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %Call(null, 11, 31, f))
- assertSame(isStrict ? null : global_object, receiver)
- receiver = 333
- assertEquals(42, %Apply(f, o, [11, 31], 0, 2))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %Apply(f, null, [11, 31], 0, 2))
- assertSame(isStrict ? null : global_object, receiver)
- receiver = 333
- assertEquals(42, %_CallFunction(o, 11, 31, f))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %_CallFunction(null, 11, 31, f))
- assertSame(isStrict ? null : global_object, receiver)
-
- var ff = Function.prototype.bind.call(f, o, 12)
- assertTrue(ff.length <= 1) // TODO(rossberg): Not spec'ed yet, be lax.
- receiver = 333
- assertEquals(42, ff(30))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(33, Function.prototype.call.call(ff, {}, 21))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(32, Function.prototype.apply.call(ff, {}, [20]))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(23, %Call({}, 11, ff))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(23, %Call({}, 11, 3, ff))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(24, %Apply(ff, {}, [12, 13], 0, 1))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(24, %Apply(ff, {}, [12, 13], 0, 2))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(34, %_CallFunction({}, 22, ff))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(34, %_CallFunction({}, 22, 3, ff))
- assertSame(o, receiver)
-
- var fff = Function.prototype.bind.call(ff, o, 30)
- assertEquals(0, fff.length)
- receiver = 333
- assertEquals(42, fff())
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, Function.prototype.call.call(fff, {}))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, Function.prototype.apply.call(fff, {}))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %Call({}, fff))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %Call({}, 11, 3, fff))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %Apply(fff, {}, [], 0, 0))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %Apply(fff, {}, [12, 13], 0, 0))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %Apply(fff, {}, [12, 13], 0, 2))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %_CallFunction({}, fff))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %_CallFunction({}, 3, 4, 5, fff))
- assertSame(o, receiver)
-
- var f = CreateFrozen({}, callTrap)
- receiver = 333
- assertEquals(42, f(11, 31))
- assertSame(isStrict ? undefined : global_object, receiver)
- var o = {f: f}
- receiver = 333
- assertEquals(42, o.f(10, 32))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, o["f"](9, 33))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, (1, o).f(8, 34))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, (1, o)["f"](7, 35))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, Function.prototype.call.call(f, o, 20, 22))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(32, Function.prototype.apply.call(f, o, [17, 15]))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(23, %Call(o, 11, 12, f))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(27, %Apply(f, o, [12, 13, 14], 1, 2))
- assertSame(o, receiver)
- receiver = 333
- assertEquals(42, %_CallFunction(o, 18, 24, f))
- assertSame(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, function() {
- receiver = this
- return arguments[0] + arguments[1]
-})
-
-TestCall(false, Proxy.createFunction(handler, function(x, y) {
- receiver = this
- return x + y
-}))
-
-TestCall(true, Proxy.createFunction(handler, function(x, y) {
- "use strict"
- receiver = this
- return x + y
-}))
-
-TestCall(false, CreateFrozen(handler, function(x, y) {
- receiver = this
- return x + y
-}))
-
-
-
-// Using intrinsics as call traps.
-
-function TestCallIntrinsic(type, callTrap) {
- var f = Proxy.createFunction({}, callTrap)
- var x = f()
- assertTrue(typeof x == type)
-}
-
-TestCallIntrinsic("boolean", Boolean)
-TestCallIntrinsic("number", Number)
-TestCallIntrinsic("string", String)
-TestCallIntrinsic("object", Object)
-TestCallIntrinsic("function", Function)
-
-
-
-// Throwing from call trap.
-
-function TestCallThrow(callTrap) {
- var f = Proxy.createFunction({}, callTrap)
- assertThrows(function(){ f(11) }, "myexn")
- assertThrows(function(){ ({x: f}).x(11) }, "myexn")
- assertThrows(function(){ ({x: f})["x"](11) }, "myexn")
- assertThrows(function(){ Function.prototype.call.call(f, {}, 2) }, "myexn")
- assertThrows(function(){ Function.prototype.apply.call(f, {}, [1]) }, "myexn")
- assertThrows(function(){ %Call({}, f) }, "myexn")
- assertThrows(function(){ %Call({}, 1, 2, f) }, "myexn")
- assertThrows(function(){ %Apply({}, f, [], 3, 0) }, "myexn")
- assertThrows(function(){ %Apply({}, f, [3, 4], 0, 1) }, "myexn")
- assertThrows(function(){ %_CallFunction({}, f) }, "myexn")
- assertThrows(function(){ %_CallFunction({}, 1, 2, f) }, "myexn")
-
- var f = CreateFrozen({}, callTrap)
- assertThrows(function(){ f(11) }, "myexn")
- assertThrows(function(){ ({x: f}).x(11) }, "myexn")
- assertThrows(function(){ ({x: f})["x"](11) }, "myexn")
- assertThrows(function(){ Function.prototype.call.call(f, {}, 2) }, "myexn")
- assertThrows(function(){ Function.prototype.apply.call(f, {}, [1]) }, "myexn")
- assertThrows(function(){ %Call({}, f) }, "myexn")
- assertThrows(function(){ %Call({}, 1, 2, f) }, "myexn")
- assertThrows(function(){ %Apply({}, f, [], 3, 0) }, "myexn")
- assertThrows(function(){ %Apply({}, f, [3, 4], 0, 1) }, "myexn")
- assertThrows(function(){ %_CallFunction({}, f) }, "myexn")
- assertThrows(function(){ %_CallFunction({}, 1, 2, f) }, "myexn")
-}
-
-TestCallThrow(function() { throw "myexn" })
-TestCallThrow(Proxy.createFunction({}, function() { throw "myexn" }))
-TestCallThrow(CreateFrozen({}, function() { throw "myexn" }))
-
-
-
-// Construction (new).
-
-var prototype = {myprop: 0}
-var receiver
-
-var handlerWithPrototype = {
- fix: function() { return { prototype: { value: prototype } }; },
- get: function(r, n) {
- if (n == "length") return 2;
- assertEquals("prototype", n);
- return prototype;
- }
-}
-
-var handlerSansPrototype = {
- fix: function() { return { length: { value: 2 } } },
- get: function(r, n) {
- if (n == "length") return 2;
- assertEquals("prototype", n);
- return undefined;
- }
-}
-
-function ReturnUndef(x, y) {
- "use strict";
- receiver = this;
- this.sum = x + y;
-}
-
-function ReturnThis(x, y) {
- "use strict";
- receiver = this;
- this.sum = x + y;
- return this;
-}
-
-function ReturnNew(x, y) {
- "use strict";
- receiver = this;
- return {sum: x + y};
-}
-
-function ReturnNewWithProto(x, y) {
- "use strict";
- receiver = this;
- var result = Object.create(prototype);
- result.sum = x + y;
- return result;
-}
-
-function TestConstruct(proto, constructTrap) {
- TestConstruct2(proto, constructTrap, handlerWithPrototype)
- TestConstruct2(proto, constructTrap, handlerSansPrototype)
-}
-
-function TestConstruct2(proto, constructTrap, handler) {
- var f = Proxy.createFunction(handler, function() {}, constructTrap)
- var o = new f(11, 31)
- assertEquals(undefined, receiver)
- assertEquals(42, o.sum)
- assertSame(proto, Object.getPrototypeOf(o))
-
- var f = CreateFrozen(handler, function() {}, constructTrap)
- var o = new f(11, 32)
- assertEquals(undefined, receiver)
- assertEquals(43, o.sum)
- assertSame(proto, Object.getPrototypeOf(o))
-}
-
-TestConstruct(Object.prototype, ReturnNew)
-TestConstruct(prototype, ReturnNewWithProto)
-
-TestConstruct(Object.prototype, Proxy.createFunction(handler, ReturnNew))
-TestConstruct(prototype, Proxy.createFunction(handler, ReturnNewWithProto))
-
-TestConstruct(Object.prototype, CreateFrozen(handler, ReturnNew))
-TestConstruct(prototype, CreateFrozen(handler, ReturnNewWithProto))
-
-
-
-// Construction with derived construct trap.
-
-function TestConstructFromCall(proto, returnsThis, callTrap) {
- TestConstructFromCall2(prototype, returnsThis, callTrap, handlerWithPrototype)
- TestConstructFromCall2(proto, returnsThis, callTrap, handlerSansPrototype)
-}
-
-function TestConstructFromCall2(proto, returnsThis, callTrap, handler) {
- // TODO(rossberg): handling of prototype for derived construct trap will be
- // fixed in a separate change. Commenting out checks below for now.
- var f = Proxy.createFunction(handler, callTrap)
- var o = new f(11, 31)
- if (returnsThis) assertEquals(o, receiver)
- assertEquals(42, o.sum)
- // assertSame(proto, Object.getPrototypeOf(o))
-
- var g = CreateFrozen(handler, callTrap)
- // assertSame(f.prototype, g.prototype)
- var o = new g(11, 32)
- if (returnsThis) assertEquals(o, receiver)
- assertEquals(43, o.sum)
- // assertSame(proto, Object.getPrototypeOf(o))
-}
-
-TestConstructFromCall(Object.prototype, true, ReturnUndef)
-TestConstructFromCall(Object.prototype, true, ReturnThis)
-TestConstructFromCall(Object.prototype, false, ReturnNew)
-TestConstructFromCall(prototype, false, ReturnNewWithProto)
-
-TestConstructFromCall(Object.prototype, true,
- Proxy.createFunction(handler, ReturnUndef))
-TestConstructFromCall(Object.prototype, true,
- Proxy.createFunction(handler, ReturnThis))
-TestConstructFromCall(Object.prototype, false,
- Proxy.createFunction(handler, ReturnNew))
-TestConstructFromCall(prototype, false,
- Proxy.createFunction(handler, ReturnNewWithProto))
-
-TestConstructFromCall(Object.prototype, true, CreateFrozen({}, ReturnUndef))
-TestConstructFromCall(Object.prototype, true, CreateFrozen({}, ReturnThis))
-TestConstructFromCall(Object.prototype, false, CreateFrozen({}, ReturnNew))
-TestConstructFromCall(prototype, false, CreateFrozen({}, ReturnNewWithProto))
-
-ReturnUndef.prototype = prototype
-ReturnThis.prototype = prototype
-ReturnNew.prototype = prototype
-ReturnNewWithProto.prototype = prototype
-
-TestConstructFromCall(prototype, true, ReturnUndef)
-TestConstructFromCall(prototype, true, ReturnThis)
-TestConstructFromCall(Object.prototype, false, ReturnNew)
-TestConstructFromCall(prototype, false, ReturnNewWithProto)
-
-TestConstructFromCall(Object.prototype, true,
- Proxy.createFunction(handler, ReturnUndef))
-TestConstructFromCall(Object.prototype, true,
- Proxy.createFunction(handler, ReturnThis))
-TestConstructFromCall(Object.prototype, false,
- Proxy.createFunction(handler, ReturnNew))
-TestConstructFromCall(prototype, false,
- Proxy.createFunction(handler, ReturnNewWithProto))
-
-TestConstructFromCall(prototype, true,
- Proxy.createFunction(handlerWithPrototype, ReturnUndef))
-TestConstructFromCall(prototype, true,
- Proxy.createFunction(handlerWithPrototype, ReturnThis))
-TestConstructFromCall(Object.prototype, false,
- Proxy.createFunction(handlerWithPrototype, ReturnNew))
-TestConstructFromCall(prototype, false,
- Proxy.createFunction(handlerWithPrototype,
- ReturnNewWithProto))
-
-TestConstructFromCall(prototype, true,
- CreateFrozen(handlerWithPrototype, ReturnUndef))
-TestConstructFromCall(prototype, true,
- CreateFrozen(handlerWithPrototype, ReturnThis))
-TestConstructFromCall(Object.prototype, false,
- CreateFrozen(handlerWithPrototype, ReturnNew))
-TestConstructFromCall(prototype, false,
- CreateFrozen(handlerWithPrototype, ReturnNewWithProto))
-
-
-
-// Throwing from the construct trap.
-
-function TestConstructThrow(trap) {
- TestConstructThrow2(Proxy.createFunction({ fix: function() {return {};} },
- trap))
- TestConstructThrow2(Proxy.createFunction({ fix: function() {return {};} },
- function() {},
- trap))
-}
-
-function TestConstructThrow2(f) {
- assertThrows(function(){ new f(11) }, "myexn")
- Object.freeze(f)
- assertThrows(function(){ new f(11) }, "myexn")
-}
-
-TestConstructThrow(function() { throw "myexn" })
-TestConstructThrow(Proxy.createFunction({}, function() { throw "myexn" }))
-TestConstructThrow(CreateFrozen({}, function() { throw "myexn" }))
-
-
-
-// Using function proxies as getters and setters.
-
-var value
-var receiver
-
-function TestAccessorCall(getterCallTrap, setterCallTrap) {
- var handler = { fix: function() { return {} } }
- var pgetter = Proxy.createFunction(handler, getterCallTrap)
- var psetter = Proxy.createFunction(handler, setterCallTrap)
-
- var o = {}
- var oo = Object.create(o)
- Object.defineProperty(o, "a", {get: pgetter, set: psetter})
- Object.defineProperty(o, "b", {get: pgetter})
- Object.defineProperty(o, "c", {set: psetter})
- Object.defineProperty(o, "3", {get: pgetter, set: psetter})
- Object.defineProperty(oo, "a", {value: 43})
-
- receiver = ""
- assertEquals(42, o.a)
- assertSame(o, receiver)
- receiver = ""
- assertEquals(42, o.b)
- assertSame(o, receiver)
- receiver = ""
- assertEquals(undefined, o.c)
- assertEquals("", receiver)
- receiver = ""
- assertEquals(42, o["a"])
- assertSame(o, receiver)
- receiver = ""
- assertEquals(42, o[3])
- assertSame(o, receiver)
-
- receiver = ""
- assertEquals(43, oo.a)
- assertEquals("", receiver)
- receiver = ""
- assertEquals(42, oo.b)
- assertSame(oo, receiver)
- receiver = ""
- assertEquals(undefined, oo.c)
- assertEquals("", receiver)
- receiver = ""
- assertEquals(43, oo["a"])
- assertEquals("", receiver)
- receiver = ""
- assertEquals(42, oo[3])
- assertSame(oo, receiver)
-
- receiver = ""
- assertEquals(50, o.a = 50)
- assertSame(o, receiver)
- assertEquals(50, value)
- receiver = ""
- assertEquals(51, o.b = 51)
- assertEquals("", receiver)
- assertEquals(50, value) // no setter
- assertThrows(function() { "use strict"; o.b = 51 }, TypeError)
- receiver = ""
- assertEquals(52, o.c = 52)
- assertSame(o, receiver)
- assertEquals(52, value)
- receiver = ""
- assertEquals(53, o["a"] = 53)
- assertSame(o, receiver)
- assertEquals(53, value)
- receiver = ""
- assertEquals(54, o[3] = 54)
- assertSame(o, receiver)
- assertEquals(54, value)
-
- value = 0
- receiver = ""
- assertEquals(60, oo.a = 60)
- assertEquals("", receiver)
- assertEquals(0, value) // oo has own 'a'
- assertEquals(61, oo.b = 61)
- assertSame("", receiver)
- assertEquals(0, value) // no setter
- assertThrows(function() { "use strict"; oo.b = 61 }, TypeError)
- receiver = ""
- assertEquals(62, oo.c = 62)
- assertSame(oo, receiver)
- assertEquals(62, value)
- receiver = ""
- assertEquals(63, oo["c"] = 63)
- assertSame(oo, receiver)
- assertEquals(63, value)
- receiver = ""
- assertEquals(64, oo[3] = 64)
- assertSame(oo, receiver)
- assertEquals(64, value)
-}
-
-TestAccessorCall(
- function() { receiver = this; return 42 },
- function(x) { receiver = this; value = x }
-)
-
-TestAccessorCall(
- function() { "use strict"; receiver = this; return 42 },
- function(x) { "use strict"; receiver = this; value = x }
-)
-
-TestAccessorCall(
- Proxy.createFunction({}, function() { receiver = this; return 42 }),
- Proxy.createFunction({}, function(x) { receiver = this; value = x })
-)
-
-TestAccessorCall(
- CreateFrozen({}, function() { receiver = this; return 42 }),
- CreateFrozen({}, function(x) { receiver = this; value = x })
-)
-
-
-
-// Passing a proxy function to higher-order library functions.
-
-function TestHigherOrder(f) {
- assertEquals(6, [6, 2].map(f)[0])
- assertEquals(4, [5, 2].reduce(f, 4))
- assertTrue([1, 2].some(f))
- assertEquals("a.b.c", "a.b.c".replace(".", f))
-}
-
-TestHigherOrder(function(x) { return x })
-TestHigherOrder(function(x) { "use strict"; return x })
-TestHigherOrder(Proxy.createFunction({}, function(x) { return x }))
-TestHigherOrder(CreateFrozen({}, function(x) { return x }))
-
-
-
-// TODO(rossberg): Ultimately, I want to have the following test function
-// run through, but it currently fails on so many cases (some not even
-// involving proxies), that I leave that for later...
-/*
-function TestCalls() {
- var handler = {
- get: function(r, k) {
- return k == "length" ? 2 : Function.prototype[k]
- }
- }
- var bind = Function.prototype.bind
- var o = {}
-
- var traps = [
- function(x, y) {
- return {receiver: this, result: x + y, strict: false}
- },
- function(x, y) { "use strict";
- return {receiver: this, result: x + y, strict: true}
- },
- function() {
- var x = arguments[0], y = arguments[1]
- return {receiver: this, result: x + y, strict: false}
- },
- Proxy.createFunction(handler, function(x, y) {
- return {receiver: this, result: x + y, strict: false}
- }),
- Proxy.createFunction(handler, function() {
- var x = arguments[0], y = arguments[1]
- return {receiver: this, result: x + y, strict: false}
- }),
- Proxy.createFunction(handler, function(x, y) { "use strict"
- return {receiver: this, result: x + y, strict: true}
- }),
- CreateFrozen(handler, function(x, y) {
- return {receiver: this, result: x + y, strict: false}
- }),
- CreateFrozen(handler, function(x, y) { "use strict"
- return {receiver: this, result: x + y, strict: true}
- }),
- ]
- 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 %_CallFunction(o, x, y, f) },
- function(f, x, y, o) { return %Call(o, x, y, f) },
- 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() { return this; };");
-Realm.eval(realms[0], "Realm.shared.f = f;");
-Realm.eval(realms[0], "Realm.shared.fg = this;");
-Realm.eval(realms[1], "function g() { return this; };");
-Realm.eval(realms[1], "Realm.shared.g = g;");
-Realm.eval(realms[1], "Realm.shared.gg = this;");
-
-var fp = Proxy.createFunction({}, Realm.shared.f);
-var gp = Proxy.createFunction({}, Realm.shared.g);
-
-for (var i = 0; i < 10; i++) {
- assertEquals(Realm.shared.fg, fp());
- assertEquals(Realm.shared.gg, gp());
-
- with (this) {
- assertEquals(this, fp());
- assertEquals(this, gp());
- }
-
- with ({}) {
- assertEquals(Realm.shared.fg, fp());
- assertEquals(Realm.shared.gg, gp());
- }
-}
+//// Ensures that checking the "length" property of a function proxy doesn't
+//// crash due to lack of a [[Get]] method.
+//var handler = {
+// get : function(r, n) { return n == "length" ? 2 : undefined }
+//}
+//
+//
+//// Calling (call, Function.prototype.call, Function.prototype.apply,
+//// Function.prototype.bind).
+//
+//var global_object = this
+//var receiver
+//
+//function TestCall(isStrict, callTrap) {
+// assertEquals(42, callTrap(5, 37))
+// assertSame(isStrict ? undefined : global_object, receiver)
+//
+// var handler = {
+// get: function(r, k) {
+// return k == "length" ? 2 : Function.prototype[k]
+// }
+// }
+// var f = Proxy.createFunction(handler, callTrap)
+// var o = {f: f}
+// global_object.f = f
+//
+// receiver = 333
+// assertEquals(42, f(11, 31))
+// assertSame(isStrict ? undefined : global_object, receiver)
+// receiver = 333
+// assertEquals(42, o.f(10, 32))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, o["f"](9, 33))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, (1, o).f(8, 34))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, (1, o)["f"](7, 35))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, f.call(o, 32, 10))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, f.call(undefined, 33, 9))
+// assertSame(isStrict ? undefined : global_object, receiver)
+// receiver = 333
+// assertEquals(42, f.call(null, 33, 9))
+// assertSame(isStrict ? null : global_object, receiver)
+// receiver = 333
+// assertEquals(44, f.call(2, 21, 23))
+// assertSame(2, receiver.valueOf())
+// receiver = 333
+// assertEquals(42, Function.prototype.call.call(f, o, 20, 22))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(43, Function.prototype.call.call(f, null, 20, 23))
+// assertSame(isStrict ? null : global_object, receiver)
+// assertEquals(44, Function.prototype.call.call(f, 2, 21, 23))
+// assertEquals(2, receiver.valueOf())
+// receiver = 333
+// assertEquals(32, f.apply(o, [16, 16]))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(32, Function.prototype.apply.call(f, o, [17, 15]))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %Call(f, o, 11, 31));
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %Call(f, null, 11, 31));
+// assertSame(isStrict ? null : global_object, receiver)
+// receiver = 333
+// assertEquals(42, %Apply(f, o, [11, 31], 0, 2))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %Apply(f, null, [11, 31], 0, 2))
+// assertSame(isStrict ? null : global_object, receiver)
+// receiver = 333
+// assertEquals(42, %_Call(f, o, 11, 31))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %_Call(f, null, 11, 31))
+// assertSame(isStrict ? null : global_object, receiver)
+//
+// var ff = Function.prototype.bind.call(f, o, 12)
+// assertTrue(ff.length <= 1) // TODO(rossberg): Not spec'ed yet, be lax.
+// receiver = 333
+// assertEquals(42, ff(30))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(33, Function.prototype.call.call(ff, {}, 21))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(32, Function.prototype.apply.call(ff, {}, [20]))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(23, %Call(ff, {}, 11));
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(23, %Call(ff, {}, 11, 3));
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(24, %Apply(ff, {}, [12, 13], 0, 1))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(24, %Apply(ff, {}, [12, 13], 0, 2))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(34, %_Call(ff, {}, 22))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(34, %_Call(ff, {}, 22, 3))
+// assertSame(o, receiver)
+//
+// var fff = Function.prototype.bind.call(ff, o, 30)
+// assertEquals(0, fff.length)
+// receiver = 333
+// assertEquals(42, fff())
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, Function.prototype.call.call(fff, {}))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, Function.prototype.apply.call(fff, {}))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %Call(fff, {}));
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %Call(fff, {}, 11, 3))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %Apply(fff, {}, [], 0, 0))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %Apply(fff, {}, [12, 13], 0, 0))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %Apply(fff, {}, [12, 13], 0, 2))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %_Call(fff, {}))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %_Call(fff, {}, 3, 4, 5))
+// assertSame(o, receiver)
+//
+// var f = CreateFrozen({}, callTrap)
+// receiver = 333
+// assertEquals(42, f(11, 31))
+// assertSame(isStrict ? undefined : global_object, receiver)
+// var o = {f: f}
+// receiver = 333
+// assertEquals(42, o.f(10, 32))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, o["f"](9, 33))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, (1, o).f(8, 34))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, (1, o)["f"](7, 35))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, Function.prototype.call.call(f, o, 20, 22))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(32, Function.prototype.apply.call(f, o, [17, 15]))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(23, %Call(f, o, 11, 12))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(27, %Apply(f, o, [12, 13, 14], 1, 2))
+// assertSame(o, receiver)
+// receiver = 333
+// assertEquals(42, %_Call(f, o, 18, 24))
+// assertSame(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, function() {
+// receiver = this
+// return arguments[0] + arguments[1]
+//})
+//
+//TestCall(false, Proxy.createFunction(handler, function(x, y) {
+// receiver = this
+// return x + y
+//}))
+//
+//TestCall(true, Proxy.createFunction(handler, function(x, y) {
+// "use strict"
+// receiver = this
+// return x + y
+//}))
+//
+//TestCall(false, CreateFrozen(handler, function(x, y) {
+// receiver = this
+// return x + y
+//}))
+//
+//
+//
+//// Using intrinsics as call traps.
+//
+//function TestCallIntrinsic(type, callTrap) {
+// var f = Proxy.createFunction({}, callTrap)
+// var x = f()
+// assertTrue(typeof x == type)
+//}
+//
+//TestCallIntrinsic("boolean", Boolean)
+//TestCallIntrinsic("number", Number)
+//TestCallIntrinsic("string", String)
+//TestCallIntrinsic("object", Object)
+//TestCallIntrinsic("function", Function)
+//
+//
+//
+//// Throwing from call trap.
+//
+//function TestCallThrow(callTrap) {
+// var f = Proxy.createFunction({}, callTrap)
+// assertThrows(function(){ f(11) }, "myexn")
+// assertThrows(function(){ ({x: f}).x(11) }, "myexn")
+// assertThrows(function(){ ({x: f})["x"](11) }, "myexn")
+// assertThrows(function(){ Function.prototype.call.call(f, {}, 2) }, "myexn")
+// assertThrows(function(){ Function.prototype.apply.call(f, {}, [1]) }, "myexn")
+// assertThrows(function(){ %Call(f, {}) }, "myexn")
+// assertThrows(function(){ %Call(f, {}, 1, 2) }, "myexn")
+// assertThrows(function(){ %Apply({}, f, [], 3, 0) }, "myexn")
+// assertThrows(function(){ %Apply({}, f, [3, 4], 0, 1) }, "myexn")
+// assertThrows(function(){ %_Call(f, {}) }, "myexn")
+// assertThrows(function(){ %_Call(f, {}, 1, 2) }, "myexn")
+//
+// var f = CreateFrozen({}, callTrap)
+// assertThrows(function(){ f(11) }, "myexn")
+// assertThrows(function(){ ({x: f}).x(11) }, "myexn")
+// assertThrows(function(){ ({x: f})["x"](11) }, "myexn")
+// assertThrows(function(){ Function.prototype.call.call(f, {}, 2) }, "myexn")
+// assertThrows(function(){ Function.prototype.apply.call(f, {}, [1]) }, "myexn")
+// assertThrows(function(){ %Call(f, {}) }, "myexn")
+// assertThrows(function(){ %Call(f, {}, 1, 2) }, "myexn")
+// assertThrows(function(){ %Apply({}, f, [], 3, 0) }, "myexn")
+// assertThrows(function(){ %Apply({}, f, [3, 4], 0, 1) }, "myexn")
+// assertThrows(function(){ %_Call(f, {}) }, "myexn")
+// assertThrows(function(){ %_Call(f, {}, 1, 2) }, "myexn")
+//}
+//
+//TestCallThrow(function() { throw "myexn" })
+//TestCallThrow(Proxy.createFunction({}, function() { throw "myexn" }))
+//TestCallThrow(CreateFrozen({}, function() { throw "myexn" }))
+//
+//
+//
+//// Construction (new).
+//
+//var prototype = {myprop: 0}
+//var receiver
+//
+//var handlerWithPrototype = {
+// fix: function() { return { prototype: { value: prototype } }; },
+// get: function(r, n) {
+// if (n == "length") return 2;
+// assertEquals("prototype", n);
+// return prototype;
+// }
+//}
+//
+//var handlerSansPrototype = {
+// fix: function() { return { length: { value: 2 } } },
+// get: function(r, n) {
+// if (n == "length") return 2;
+// assertEquals("prototype", n);
+// return undefined;
+// }
+//}
+//
+//function ReturnUndef(x, y) {
+// "use strict";
+// receiver = this;
+// this.sum = x + y;
+//}
+//
+//function ReturnThis(x, y) {
+// "use strict";
+// receiver = this;
+// this.sum = x + y;
+// return this;
+//}
+//
+//function ReturnNew(x, y) {
+// "use strict";
+// receiver = this;
+// return {sum: x + y};
+//}
+//
+//function ReturnNewWithProto(x, y) {
+// "use strict";
+// receiver = this;
+// var result = Object.create(prototype);
+// result.sum = x + y;
+// return result;
+//}
+//
+//function TestConstruct(proto, constructTrap) {
+// TestConstruct2(proto, constructTrap, handlerWithPrototype)
+// TestConstruct2(proto, constructTrap, handlerSansPrototype)
+//}
+//
+//function TestConstruct2(proto, constructTrap, handler) {
+// var f = Proxy.createFunction(handler, function() {}, constructTrap)
+// var o = new f(11, 31)
+// assertEquals(undefined, receiver)
+// assertEquals(42, o.sum)
+// assertSame(proto, Object.getPrototypeOf(o))
+//
+// var f = CreateFrozen(handler, function() {}, constructTrap)
+// var o = new f(11, 32)
+// assertEquals(undefined, receiver)
+// assertEquals(43, o.sum)
+// assertSame(proto, Object.getPrototypeOf(o))
+//}
+//
+//TestConstruct(Object.prototype, ReturnNew)
+//TestConstruct(prototype, ReturnNewWithProto)
+//
+//TestConstruct(Object.prototype, Proxy.createFunction(handler, ReturnNew))
+//TestConstruct(prototype, Proxy.createFunction(handler, ReturnNewWithProto))
+//
+//TestConstruct(Object.prototype, CreateFrozen(handler, ReturnNew))
+//TestConstruct(prototype, CreateFrozen(handler, ReturnNewWithProto))
+//
+//
+//
+//// Construction with derived construct trap.
+//
+//function TestConstructFromCall(proto, returnsThis, callTrap) {
+// TestConstructFromCall2(prototype, returnsThis, callTrap, handlerWithPrototype)
+// TestConstructFromCall2(proto, returnsThis, callTrap, handlerSansPrototype)
+//}
+//
+//function TestConstructFromCall2(proto, returnsThis, callTrap, handler) {
+// // TODO(rossberg): handling of prototype for derived construct trap will be
+// // fixed in a separate change. Commenting out checks below for now.
+// var f = Proxy.createFunction(handler, callTrap)
+// var o = new f(11, 31)
+// if (returnsThis) assertEquals(o, receiver)
+// assertEquals(42, o.sum)
+// // assertSame(proto, Object.getPrototypeOf(o))
+//
+// var g = CreateFrozen(handler, callTrap)
+// // assertSame(f.prototype, g.prototype)
+// var o = new g(11, 32)
+// if (returnsThis) assertEquals(o, receiver)
+// assertEquals(43, o.sum)
+// // assertSame(proto, Object.getPrototypeOf(o))
+//}
+//
+//TestConstructFromCall(Object.prototype, true, ReturnUndef)
+//TestConstructFromCall(Object.prototype, true, ReturnThis)
+//TestConstructFromCall(Object.prototype, false, ReturnNew)
+//TestConstructFromCall(prototype, false, ReturnNewWithProto)
+//
+//TestConstructFromCall(Object.prototype, true,
+// Proxy.createFunction(handler, ReturnUndef))
+//TestConstructFromCall(Object.prototype, true,
+// Proxy.createFunction(handler, ReturnThis))
+//TestConstructFromCall(Object.prototype, false,
+// Proxy.createFunction(handler, ReturnNew))
+//TestConstructFromCall(prototype, false,
+// Proxy.createFunction(handler, ReturnNewWithProto))
+//
+//TestConstructFromCall(Object.prototype, true, CreateFrozen({}, ReturnUndef))
+//TestConstructFromCall(Object.prototype, true, CreateFrozen({}, ReturnThis))
+//TestConstructFromCall(Object.prototype, false, CreateFrozen({}, ReturnNew))
+//TestConstructFromCall(prototype, false, CreateFrozen({}, ReturnNewWithProto))
+//
+//ReturnUndef.prototype = prototype
+//ReturnThis.prototype = prototype
+//ReturnNew.prototype = prototype
+//ReturnNewWithProto.prototype = prototype
+//
+//TestConstructFromCall(prototype, true, ReturnUndef)
+//TestConstructFromCall(prototype, true, ReturnThis)
+//TestConstructFromCall(Object.prototype, false, ReturnNew)
+//TestConstructFromCall(prototype, false, ReturnNewWithProto)
+//
+//TestConstructFromCall(Object.prototype, true,
+// Proxy.createFunction(handler, ReturnUndef))
+//TestConstructFromCall(Object.prototype, true,
+// Proxy.createFunction(handler, ReturnThis))
+//TestConstructFromCall(Object.prototype, false,
+// Proxy.createFunction(handler, ReturnNew))
+//TestConstructFromCall(prototype, false,
+// Proxy.createFunction(handler, ReturnNewWithProto))
+//
+//TestConstructFromCall(prototype, true,
+// Proxy.createFunction(handlerWithPrototype, ReturnUndef))
+//TestConstructFromCall(prototype, true,
+// Proxy.createFunction(handlerWithPrototype, ReturnThis))
+//TestConstructFromCall(Object.prototype, false,
+// Proxy.createFunction(handlerWithPrototype, ReturnNew))
+//TestConstructFromCall(prototype, false,
+// Proxy.createFunction(handlerWithPrototype,
+// ReturnNewWithProto))
+//
+//TestConstructFromCall(prototype, true,
+// CreateFrozen(handlerWithPrototype, ReturnUndef))
+//TestConstructFromCall(prototype, true,
+// CreateFrozen(handlerWithPrototype, ReturnThis))
+//TestConstructFromCall(Object.prototype, false,
+// CreateFrozen(handlerWithPrototype, ReturnNew))
+//TestConstructFromCall(prototype, false,
+// CreateFrozen(handlerWithPrototype, ReturnNewWithProto))
+//
+//
+//
+//// Throwing from the construct trap.
+//
+//function TestConstructThrow(trap) {
+// TestConstructThrow2(Proxy.createFunction({ fix: function() {return {};} },
+// trap))
+// TestConstructThrow2(Proxy.createFunction({ fix: function() {return {};} },
+// function() {},
+// trap))
+//}
+//
+//function TestConstructThrow2(f) {
+// assertThrows(function(){ new f(11) }, "myexn")
+// Object.freeze(f)
+// assertThrows(function(){ new f(11) }, "myexn")
+//}
+//
+//TestConstructThrow(function() { throw "myexn" })
+//TestConstructThrow(Proxy.createFunction({}, function() { throw "myexn" }))
+//TestConstructThrow(CreateFrozen({}, function() { throw "myexn" }))
+//
+//
+//
+//// Using function proxies as getters and setters.
+//
+//var value
+//var receiver
+//
+//function TestAccessorCall(getterCallTrap, setterCallTrap) {
+// var handler = { fix: function() { return {} } }
+// var pgetter = Proxy.createFunction(handler, getterCallTrap)
+// var psetter = Proxy.createFunction(handler, setterCallTrap)
+//
+// var o = {}
+// var oo = Object.create(o)
+// Object.defineProperty(o, "a", {get: pgetter, set: psetter})
+// Object.defineProperty(o, "b", {get: pgetter})
+// Object.defineProperty(o, "c", {set: psetter})
+// Object.defineProperty(o, "3", {get: pgetter, set: psetter})
+// Object.defineProperty(oo, "a", {value: 43})
+//
+// receiver = ""
+// assertEquals(42, o.a)
+// assertSame(o, receiver)
+// receiver = ""
+// assertEquals(42, o.b)
+// assertSame(o, receiver)
+// receiver = ""
+// assertEquals(undefined, o.c)
+// assertEquals("", receiver)
+// receiver = ""
+// assertEquals(42, o["a"])
+// assertSame(o, receiver)
+// receiver = ""
+// assertEquals(42, o[3])
+// assertSame(o, receiver)
+//
+// receiver = ""
+// assertEquals(43, oo.a)
+// assertEquals("", receiver)
+// receiver = ""
+// assertEquals(42, oo.b)
+// assertSame(oo, receiver)
+// receiver = ""
+// assertEquals(undefined, oo.c)
+// assertEquals("", receiver)
+// receiver = ""
+// assertEquals(43, oo["a"])
+// assertEquals("", receiver)
+// receiver = ""
+// assertEquals(42, oo[3])
+// assertSame(oo, receiver)
+//
+// receiver = ""
+// assertEquals(50, o.a = 50)
+// assertSame(o, receiver)
+// assertEquals(50, value)
+// receiver = ""
+// assertEquals(51, o.b = 51)
+// assertEquals("", receiver)
+// assertEquals(50, value) // no setter
+// assertThrows(function() { "use strict"; o.b = 51 }, TypeError)
+// receiver = ""
+// assertEquals(52, o.c = 52)
+// assertSame(o, receiver)
+// assertEquals(52, value)
+// receiver = ""
+// assertEquals(53, o["a"] = 53)
+// assertSame(o, receiver)
+// assertEquals(53, value)
+// receiver = ""
+// assertEquals(54, o[3] = 54)
+// assertSame(o, receiver)
+// assertEquals(54, value)
+//
+// value = 0
+// receiver = ""
+// assertEquals(60, oo.a = 60)
+// assertEquals("", receiver)
+// assertEquals(0, value) // oo has own 'a'
+// assertEquals(61, oo.b = 61)
+// assertSame("", receiver)
+// assertEquals(0, value) // no setter
+// assertThrows(function() { "use strict"; oo.b = 61 }, TypeError)
+// receiver = ""
+// assertEquals(62, oo.c = 62)
+// assertSame(oo, receiver)
+// assertEquals(62, value)
+// receiver = ""
+// assertEquals(63, oo["c"] = 63)
+// assertSame(oo, receiver)
+// assertEquals(63, value)
+// receiver = ""
+// assertEquals(64, oo[3] = 64)
+// assertSame(oo, receiver)
+// assertEquals(64, value)
+//}
+//
+//TestAccessorCall(
+// function() { receiver = this; return 42 },
+// function(x) { receiver = this; value = x }
+//)
+//
+//TestAccessorCall(
+// function() { "use strict"; receiver = this; return 42 },
+// function(x) { "use strict"; receiver = this; value = x }
+//)
+//
+//TestAccessorCall(
+// Proxy.createFunction({}, function() { receiver = this; return 42 }),
+// Proxy.createFunction({}, function(x) { receiver = this; value = x })
+//)
+//
+//TestAccessorCall(
+// CreateFrozen({}, function() { receiver = this; return 42 }),
+// CreateFrozen({}, function(x) { receiver = this; value = x })
+//)
+//
+//
+//
+//// Passing a proxy function to higher-order library functions.
+//
+//function TestHigherOrder(f) {
+// assertEquals(6, [6, 2].map(f)[0])
+// assertEquals(4, [5, 2].reduce(f, 4))
+// assertTrue([1, 2].some(f))
+// assertEquals("a.b.c", "a.b.c".replace(".", f))
+//}
+//
+//TestHigherOrder(function(x) { return x })
+//TestHigherOrder(function(x) { "use strict"; return x })
+//TestHigherOrder(Proxy.createFunction({}, function(x) { return x }))
+//TestHigherOrder(CreateFrozen({}, function(x) { return x }))
+//
+//
+//
+//// TODO(rossberg): Ultimately, I want to have the following test function
+//// run through, but it currently fails on so many cases (some not even
+//// involving proxies), that I leave that for later...
+///*
+//function TestCalls() {
+// var handler = {
+// get: function(r, k) {
+// return k == "length" ? 2 : Function.prototype[k]
+// }
+// }
+// var bind = Function.prototype.bind
+// var o = {}
+//
+// var traps = [
+// function(x, y) {
+// return {receiver: this, result: x + y, strict: false}
+// },
+// function(x, y) { "use strict";
+// return {receiver: this, result: x + y, strict: true}
+// },
+// function() {
+// var x = arguments[0], y = arguments[1]
+// return {receiver: this, result: x + y, strict: false}
+// },
+// Proxy.createFunction(handler, function(x, y) {
+// return {receiver: this, result: x + y, strict: false}
+// }),
+// Proxy.createFunction(handler, function() {
+// var x = arguments[0], y = arguments[1]
+// return {receiver: this, result: x + y, strict: false}
+// }),
+// Proxy.createFunction(handler, function(x, y) { "use strict"
+// return {receiver: this, result: x + y, strict: true}
+// }),
+// CreateFrozen(handler, function(x, y) {
+// return {receiver: this, result: x + y, strict: false}
+// }),
+// CreateFrozen(handler, function(x, y) { "use strict"
+// return {receiver: this, result: x + y, strict: true}
+// }),
+// ]
+// 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 %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() { return this; };");
+//Realm.eval(realms[0], "Realm.shared.f = f;");
+//Realm.eval(realms[0], "Realm.shared.fg = this;");
+//Realm.eval(realms[1], "function g() { return this; };");
+//Realm.eval(realms[1], "Realm.shared.g = g;");
+//Realm.eval(realms[1], "Realm.shared.gg = this;");
+//
+//var fp = Proxy.createFunction({}, Realm.shared.f);
+//var gp = Proxy.createFunction({}, Realm.shared.g);
+//
+//for (var i = 0; i < 10; i++) {
+// assertEquals(Realm.shared.fg, fp());
+// assertEquals(Realm.shared.gg, gp());
+//
+// with (this) {
+// assertEquals(this, fp());
+// assertEquals(this, gp());
+// }
+//
+// with ({}) {
+// assertEquals(Realm.shared.fg, fp());
+// assertEquals(Realm.shared.gg, gp());
+// }
+//}