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LibJS: Virtualize access to an Object's own properties

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Object now has virtual get_own_property() and put_own_property() member
functions that can be overridden to provide custom behavior.

We use these virtuals to move Array-specific access behavior to Array.
This commit is contained in:
Andreas Kling
2020-03-21 14:37:34 +01:00
parent 2a7dbac0c5
commit 324b92fd06
4 changed files with 57 additions and 30 deletions
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7
Libraries/LibJS/Runtime/Object.h
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@@ -40,8 +40,11 @@ public:
Object();
virtual ~Object();
Value get(String property_name) const;
void put(String property_name, Value);
Value get(const String& property_name) const;
void put(const String& property_name, Value);
virtual Optional<Value> get_own_property(const String& property_name) const;
virtual bool put_own_property(const String& property_name, Value);
void put_native_function(String property_name, AK::Function<Value(Object*, Vector<Value>)>);
void put_native_property(String property_name, AK::Function<Value(Object*)> getter, AK::Function<void(Object*, Value)> setter);