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LibJS: Disallow shorthand properties with reserved names

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davidot 2021-11-26 23:36:43 +01:00 • committed by Linus Groh
parent e491fc0e81
commit 51e23cd043
2 changed files with 56 additions and 0 deletions
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48
Userland/Libraries/LibJS/Tests/object-basic.js
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@ -151,6 +151,54 @@ describe("side effects", () => {
});
});
describe("shorthanded properties with special names", () => {
test("keywords cannot be used", () => {
expect("({ function, })").not.toEval();
expect("({ var, })").not.toEval();
expect("({ const, })").not.toEval();
expect("({ class, })").not.toEval();
});
test("reserved words are allowed in non-strict mode", () => {
{
var implements = 3;
expect({ implements }).toEqual({ implements: 3 });
}
{
var public = "a";
expect({ public }).toEqual({ public: "a" });
}
{
var let = 9;
expect({ let }).toEqual({ let: 9 });
}
{
var await = 8;
expect({ await }).toEqual({ await: 8 });
}
{
var async = 7;
expect({ async }).toEqual({ async: 7 });
}
{
var yield = 6;
expect({ yield }).toEqual({ yield: 6 });
}
});
test("reserved words are not allowed in strict mode", () => {
expect('"use strict"; var implements = 3; ({ implements })').not.toEval();
expect("\"use strict\"; var public = 'a'; ({ public })").not.toEval();
expect('"use strict"; var let = 9; ({ let, })').not.toEval();
expect('"use strict"; var yield = 6; ({ yield, })').not.toEval();
});
test("special non reserved words are allowed even in strict mode", () => {
expect('"use strict"; var await = 8; ({ await, })').toEval();
expect('"use strict"; var async = 7; ({ async, })').toEval();
});
});
describe("errors", () => {
test("syntax errors", () => {
expect("({ foo: function() { super.bar; } })").not.toEval();