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LibJS: Fix Object.prototype.valueOf() behavior
No idea why it was implemented like this, but a value_of() call on the coerced object is not part of the spec. Also added some tests.
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2 changed files with 9 additions and 4 deletions
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@ -106,10 +106,7 @@ JS_DEFINE_NATIVE_FUNCTION(ObjectPrototype::to_locale_string)
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// 20.1.3.7 Object.prototype.valueOf ( ), https://tc39.es/ecma262/#sec-object.prototype.valueof
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JS_DEFINE_NATIVE_FUNCTION(ObjectPrototype::value_of)
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{
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auto* this_object = vm.this_value(global_object).to_object(global_object);
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if (!this_object)
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return {};
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return this_object->value_of();
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return vm.this_value(global_object).to_object(global_object);
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}
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// 20.1.3.4 Object.prototype.propertyIsEnumerable ( V ), https://tc39.es/ecma262/#sec-object.prototype.propertyisenumerable
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@ -0,0 +1,8 @@
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test("basic functionality", () => {
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expect(Object.prototype.valueOf).toHaveLength(0);
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const o = {};
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expect(o.valueOf()).toBe(o);
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expect(Object.prototype.valueOf.call(42)).toEqual(new Number(42));
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});
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