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LibJS: Implement Object.freeze() and Object.seal()

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Linus Groh 2021-04-06 22:06:11 +02:00 • committed by Andreas Kling
parent 1c3eef5317
commit 9af07c7803
8 changed files with 202 additions and 3 deletions
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7
Userland/Libraries/LibJS/Runtime/Object.h
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@ -84,6 +84,11 @@ public:
DefineProperty,
};
enum class IntegrityLevel {
Sealed,
Frozen,
};
Shape& shape() { return *m_shape; }
const Shape& shape() const { return *m_shape; }
@ -129,6 +134,8 @@ public:
virtual bool is_extensible() const { return m_is_extensible; }
virtual bool prevent_extensions();
bool set_integrity_level(IntegrityLevel);
virtual Value value_of() const { return Value(const_cast<Object*>(this)); }
virtual Value ordinary_to_primitive(Value::PreferredType preferred_type) const;