blob: 6746b783ed52ed40759c4509a4190b06f15c3ff6 [file] [log] [blame]
//@ requireOptions("--useAtMethod=1", "--useChangeArrayByCopyMethods=1")
function test(actual, expected) {
if (actual !== expected)
throw new Error('bad value: ' + actual);
}
(function () {
var array = [];
var unscopables = array[Symbol.unscopables];
test(typeof unscopables, "object");
test(unscopables.__proto__, undefined);
test(String(Object.keys(unscopables).sort()), "at,copyWithin,entries,fill,find,findIndex,findLast,findLastIndex,flat,flatMap,includes,keys,toReversed,toSorted,toSpliced,values");
}());
(function () {
var find = "Cocoa";
var forEach = "Hidden";
var array = [];
test(typeof array.find, "function");
with (array) {
test(typeof find, "string");
test(find, "Cocoa");
test(typeof forEach, "function");
test(__proto__, Array.prototype); // array's unscopables.__proto__ is undefined => false.
}
}());
(function () {
var object = {
[Symbol.unscopables]: {
Cocoa: false,
Cappuccino: true
},
Cocoa: null,
Cappuccino: null
};
var Cocoa = "Cocoa";
var Cappuccino = "Cappuccino";
var toString = "toString";
with (object) {
test(Cocoa, null);
test(Cappuccino, "Cappuccino");
test(toString, "toString"); // object.toString is hidden by unscopables.toString.
}
object[Symbol.unscopables].Cocoa = true;
with (object) {
test(Cocoa, "Cocoa");
test(Cappuccino, "Cappuccino");
}
}());
(function () {
var unscopables = Object.create(null);
unscopables.Cocoa = false;
unscopables.Cappuccino = true;
var object = {
[Symbol.unscopables]: unscopables,
Cocoa: null,
Cappuccino: null,
Matcha: null
};
var Cocoa = "Cocoa";
var Cappuccino = "Cappuccino";
var Matcha = "Matcha";
var toString = "toString";
with (object) {
test(Cocoa, null);
test(Cappuccino, "Cappuccino");
test(Matcha, null);
test(toString, Object.prototype.toString);
}
object[Symbol.unscopables].Cocoa = true;
object[Symbol.unscopables].Cappuccino = false;
object[Symbol.unscopables].toString = true;
with (object) {
test(Cocoa, "Cocoa");
test(Cappuccino, null);
test(toString, "toString");
test(Matcha, null);
}
}());
(function () {
var proto = Object.create(null);
var unscopables = Object.create(proto);
unscopables.Cocoa = false;
unscopables.Cappuccino = true;
var object = {
[Symbol.unscopables]: unscopables,
Cocoa: null,
Cappuccino: null,
Matcha: null
};
var Cocoa = "Cocoa";
var Cappuccino = "Cappuccino";
var Matcha = "Matcha";
var toString = "toString";
with (object) {
test(Cocoa, null);
test(Cappuccino, "Cappuccino");
test(Matcha, null);
test(toString, Object.prototype.toString);
}
object[Symbol.unscopables].Cocoa = true;
object[Symbol.unscopables].Cappuccino = false;
object[Symbol.unscopables].toString = true;
with (object) {
test(Cocoa, "Cocoa");
test(Cappuccino, null);
test(toString, "toString");
test(Matcha, null);
}
proto.Matcha = true;
with (object) {
test(Cocoa, "Cocoa");
test(Cappuccino, null);
test(toString, "toString");
test(Matcha, "Matcha");
}
}());
(function () {
var object = {
get Cocoa() {
throw new Error("bad trap");
},
Cappuccino: null
};
object[Symbol.unscopables] = {
Cocoa: true,
Cappuccino: true
};
var Cocoa = "Cocoa";
var Cappuccino = "Cappuccino";
var toString = "toString";
with (object) {
test(Cocoa, "Cocoa");
}
object[Symbol.unscopables].Cocoa = false;
var error = null;
try {
with (object) {
Cocoa;
}
} catch (e) {
error = e;
}
test(String(error), "Error: bad trap");
}());
(function () {
var object = {
Cocoa: null,
};
Object.defineProperty(object, Symbol.unscopables, {
get: function () {
throw new Error("unscopables trap");
}
});
var Cocoa = "Cocoa";
var Cappuccino = "Cappuccino";
var error = null;
try {
with (object) {
Cocoa
}
} catch (e) {
error = e;
}
test(String(error), "Error: unscopables trap");
with (object) {
test(Cappuccino, "Cappuccino");
}
}());
(function () {
var object = {
[Symbol.unscopables]: {
get Cocoa() {
throw new Error("unscopables trap");
}
},
Cocoa: null,
};
var Cocoa = "Cocoa";
var Cappuccino = "Cappuccino";
var error = null;
try {
with (object) {
Cocoa
}
} catch (e) {
error = e;
}
test(String(error), "Error: unscopables trap");
with (object) {
test(Cappuccino, "Cappuccino");
}
}());
(function () {
var object = {
[Symbol.unscopables]: 42,
Cocoa: "OK",
};
var Cocoa = "Cocoa";
with (object) {
test(Cocoa, "OK");
}
}());