v8/test/mjsunit/es6/proxies-function.js
Toon Verwaest a71ab76a60 [interpreter] Remove %_Call
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}
2021-06-17 15:16:41 +00:00

610 lines
18 KiB
JavaScript

// Copyright 2011 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: --allow-natives-syntax
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(undefined, undefined, [5, 37]))
var handler = {
get: function(r, k) {
return k == "length" ? 2 : Function.prototype[k]
},
apply: callTrap
}
var f = new Proxy(()=>{}, handler)
var o = {f: f}
global_object.f = f
receiver = 333
assertEquals(42, f(11, 31))
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))
receiver = 333
assertEquals(42, f.call(null, 33, 9))
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))
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));
receiver = 333
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
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
var f = new Proxy(()=>{}, {apply: callTrap})
receiver = 333
assertEquals(42, f(11, 31))
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
}
TestCall(false, function(_, that, [x, y]) {
receiver = that
return x + y
})
TestCall(true, function(_, that, args) {
"use strict"
receiver = that
return args[0] + args[1]
})
TestCall(false, function() {
receiver = arguments[1]
return arguments[2][0] + arguments[2][1]
})
TestCall(false, new Proxy(function(_, that, [x, y]) {
receiver = that
return x + y
}, handler))
TestCall(true, new Proxy(function(_, that, args) {
"use strict"
receiver = that
return args[0] + args[1]
}, handler))
TestCall(false, Object.freeze(new Proxy(function(_, that, [x, y]) {
receiver = that
return x + y
}, handler)))
// Using intrinsics as call traps.
function TestCallIntrinsic(type, callTrap) {
var f = new Proxy(()=>{}, {apply: (_, that, args) => callTrap(...args)})
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 = new Proxy(()=>{}, {apply: callTrap})
assertThrowsEquals(() => f(11), "myexn")
assertThrowsEquals(() => ({x: f}).x(11), "myexn")
assertThrowsEquals(() => ({x: f})["x"](11), "myexn")
assertThrowsEquals(() => Function.prototype.call.call(f, {}, 2), "myexn")
assertThrowsEquals(() => Function.prototype.apply.call(f, {}, [1]), "myexn")
assertThrowsEquals(() => %Call(f, {}), "myexn")
assertThrowsEquals(() => %Call(f, {}, 1, 2), "myexn")
var f = Object.freeze(new Proxy(()=>{}, {apply: callTrap}))
assertThrowsEquals(() => f(11), "myexn")
assertThrowsEquals(() => ({x: f}).x(11), "myexn")
assertThrowsEquals(() => ({x: f})["x"](11), "myexn")
assertThrowsEquals(() => Function.prototype.call.call(f, {}, 2), "myexn")
assertThrowsEquals(() => Function.prototype.apply.call(f, {}, [1]), "myexn")
assertThrowsEquals(() => %Call(f, {}), "myexn")
assertThrowsEquals(() => %Call(f, {}, 1, 2), "myexn")
}
TestCallThrow(function() { throw "myexn" })
TestCallThrow(new Proxy(() => {throw "myexn"}, {}))
TestCallThrow(Object.freeze(new Proxy(() => {throw "myexn"}, {})))
// Construction (new).
var prototype = {myprop: 0}
var receiver
var handlerWithPrototype = {
get: function(r, n) {
if (n == "length") return 2;
assertEquals("prototype", n);
return prototype;
}
}
var handlerSansPrototype = {
get: function(r, n) {
if (n == "length") return 2;
assertEquals("prototype", n);
return undefined;
}
}
function ReturnUndef(_, args, newt) {
"use strict";
newt.sum = args[0] + args[1];
}
function ReturnThis(x, y) {
"use strict";
receiver = this;
this.sum = x + y;
return this;
}
function ReturnNew(_, args, newt) {
"use strict";
return {sum: args[0] + args[1]};
}
function ReturnNewWithProto(_, args, newt) {
"use strict";
var result = Object.create(prototype);
result.sum = args[0] + args[1];
return result;
}
function TestConstruct(proto, constructTrap) {
TestConstruct2(proto, constructTrap, handlerWithPrototype)
TestConstruct2(proto, constructTrap, handlerSansPrototype)
}
function TestConstruct2(proto, constructTrap, handler) {
var f = new Proxy(function(){}, {construct: constructTrap})
var o = new f(11, 31)
assertEquals(42, o.sum)
assertSame(proto, Object.getPrototypeOf(o))
var f = Object.freeze(new Proxy(function(){}, {construct: constructTrap}))
var o = new f(11, 32)
assertEquals(43, o.sum)
assertSame(proto, Object.getPrototypeOf(o))
}
TestConstruct(Object.prototype, ReturnNew)
TestConstruct(prototype, ReturnNewWithProto)
TestConstruct(Object.prototype, new Proxy(ReturnNew, {}))
TestConstruct(prototype, new Proxy(ReturnNewWithProto, {}))
TestConstruct(Object.prototype, Object.freeze(new Proxy(ReturnNew, {})))
TestConstruct(prototype, Object.freeze(new Proxy(ReturnNewWithProto, {})))
// Throwing from the construct trap.
function TestConstructThrow(trap) {
var f = new Proxy(function(){}, {construct: trap});
assertThrowsEquals(() => new f(11), "myexn")
Object.freeze(f)
assertThrowsEquals(() => new f(11), "myexn")
}
TestConstructThrow(function() { throw "myexn" })
TestConstructThrow(new Proxy(function() { throw "myexn" }, {}))
TestConstructThrow(Object.freeze(new Proxy(function() { throw "myexn" }, {})))
// Using function proxies as getters and setters.
var value
var receiver
function TestAccessorCall(getterCallTrap, setterCallTrap) {
var pgetter = new Proxy(()=>{}, {apply: getterCallTrap})
var psetter = new Proxy(()=>{}, {apply: 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(_, that) { receiver = that; return 42 },
function(_, that, [x]) { receiver = that; value = x }
)
TestAccessorCall(
function(_, that) { "use strict"; receiver = that; return 42 },
function(_, that, args) { "use strict"; receiver = that; value = args[0] }
)
TestAccessorCall(
new Proxy(function(_, that) { receiver = that; return 42 }, {}),
new Proxy(function(_, that, [x]) { receiver = that; value = x }, {})
)
TestAccessorCall(
Object.freeze(
new Proxy(function(_, that) { receiver = that; return 42 }, {})),
Object.freeze(
new Proxy(function(_, that, [x]) { receiver = that; 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(new Proxy(function(x) { return x }, {}))
TestHigherOrder(Object.freeze(new Proxy(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 %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());
}
}