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LibJS: Make define_property always throw if specified

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Now put uses is_strict_mode to determine define_property should throw
This commit is contained in:
davidot 2021-06-21 16:32:07 +02:00 committed by Linus Groh
parent e10219a293
commit 15edad8202
Notes: sideshowbarker 2024-07-18 11:39:31 +09:00 
Author: https://github.com/davidot
Commit: https://github.com/SerenityOS/serenity/commit/15edad8202b
Pull-request: https://github.com/SerenityOS/serenity/pull/8191
2 changed files with 4 additions and 5 deletions
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7
Userland/Libraries/LibJS/Runtime/Object.cpp
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@ -621,7 +621,7 @@ bool Object::put_own_property(const StringOrSymbol& property_name, Value value,
if (!is_extensible() && new_property) {
dbgln_if(OBJECT_DEBUG, "Disallow define_property of non-extensible object");
if (throw_exceptions && vm().in_strict_mode())
if (throw_exceptions)
vm().throw_exception<TypeError>(global_object(), ErrorType::NonExtensibleDefine, property_name.to_display_string());
return false;
}
@ -729,7 +729,7 @@ bool Object::put_own_property_by_index(u32 property_index, Value value, Property
if (!is_extensible() && new_property) {
dbgln_if(OBJECT_DEBUG, "Disallow define_property of non-extensible object");
if (throw_exceptions && vm().in_strict_mode())
if (throw_exceptions)
vm().throw_exception<TypeError>(global_object(), ErrorType::NonExtensibleDefine, property_index);
return false;
}
@ -781,7 +781,6 @@ bool Object::delete_property(PropertyName const& property_name, bool force_throw
return true;
}
auto metadata = shape().lookup(property_name.to_string_or_symbol());
if (!metadata.has_value())
return true;
@ -923,7 +922,7 @@ bool Object::put(const PropertyName& property_name, Value value, Value receiver)
if (vm().exception())
return false;
}
return put_own_property(string_or_symbol, value, default_attributes, PutOwnPropertyMode::Put);
return put_own_property(string_or_symbol, value, default_attributes, PutOwnPropertyMode::Put, vm().in_strict_mode());
}
bool Object::define_native_function(PropertyName const& property_name, AK::Function<Value(VM&, GlobalObject&)> native_function, i32 length, PropertyAttributes attribute)

2
Userland/Libraries/LibJS/Tests/builtins/Array/Array.prototype.shift.js
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@ -26,7 +26,7 @@ test("Issue #5884, GenericIndexedPropertyStorage::take_first() loses elements",
const a = [];
for (let i = 0; i < 300; i++) {
// NOTE: We use defineProperty to prevent the array from using SimpleIndexedPropertyStorage
Object.defineProperty(a, i, { value: i, writable: false });
Object.defineProperty(a, i, { value: i, configurable: true });
}
expect(a.length).toBe(300);
for (let i = 0; i < 300; i++) {