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LibJS: Add getter/setter support

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This patch adds a GetterSetterPair object. Values can now store pointers
to objects of this type. These objects are created when using
Object.defineProperty and providing an accessor descriptor.
This commit is contained in:
Matthew Olsson 2020-05-21 11:14:23 -07:00 • committed by Andreas Kling
parent a4d04cc748
commit 45dfa094e9
7 changed files with 259 additions and 12 deletions
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12
Libraries/LibJS/Runtime/Value.h
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@ -45,6 +45,7 @@ public:
Object,
Boolean,
Symbol,
Accessor,
};
bool is_empty() const { return m_type == Type::Empty; }
@ -55,7 +56,8 @@ public:
bool is_object() const { return m_type == Type::Object; }
bool is_boolean() const { return m_type == Type::Boolean; }
bool is_symbol() const { return m_type == Type::Symbol; }
bool is_cell() const { return is_string() || is_object(); }
bool is_accessor() const { return m_type == Type::Accessor; };
bool is_cell() const { return is_string() || is_accessor() || is_object(); }
bool is_array() const;
bool is_function() const;
@ -119,6 +121,12 @@ public:
m_value.as_symbol = symbol;
}
Value(Accessor* accessor)
: m_type(Type::Accessor)
{
m_value.as_accessor = accessor;
}
explicit Value(Type type)
: m_type(type)
{
@ -183,6 +191,7 @@ public:
String to_string_without_side_effects() const;
Function& as_function();
Accessor& as_accessor();
i32 as_i32() const;
size_t as_size_t() const;
@ -214,6 +223,7 @@ private:
Symbol* as_symbol;
Object* as_object;
Cell* as_cell;
Accessor* as_accessor;
} m_value;
};