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Code Issues Projects Releases Packages Wiki Activity Actions 10

LibJS: Reorganize Shape members to reduce sizeof(Shape) a bit

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This commit is contained in:
Andreas Kling 2020-10-16 15:24:17 +02:00
parent 26b430bee7
commit 2c956ac132
Notes: sideshowbarker 2024-07-19 01:53:14 +09:00
2 changed files with 10 additions and 8 deletions
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10
Libraries/LibJS/Runtime/Shape.cpp
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@ -73,21 +73,21 @@ Shape::Shape(GlobalObject& global_object)
}
Shape::Shape(Shape& previous_shape, const StringOrSymbol& property_name, PropertyAttributes attributes, TransitionType transition_type)
: m_global_object(previous_shape.m_global_object)
: m_attributes(attributes)
, m_transition_type(transition_type)
, m_global_object(previous_shape.m_global_object)
, m_previous(&previous_shape)
, m_property_name(property_name)
, m_attributes(attributes)
, m_prototype(previous_shape.m_prototype)
, m_transition_type(transition_type)
, m_property_count(transition_type == TransitionType::Put ? previous_shape.m_property_count + 1 : previous_shape.m_property_count)
{
}
Shape::Shape(Shape& previous_shape, Object* new_prototype)
: m_global_object(previous_shape.m_global_object)
: m_transition_type(TransitionType::Prototype)
, m_global_object(previous_shape.m_global_object)
, m_previous(&previous_shape)
, m_prototype(new_prototype)
, m_transition_type(TransitionType::Prototype)
, m_property_count(previous_shape.m_property_count)
{
}

8
Libraries/LibJS/Runtime/Shape.h
View file

@ -103,6 +103,11 @@ private:
void ensure_property_table() const;
PropertyAttributes m_attributes { 0 };
TransitionType m_transition_type : 6 { TransitionType::Invalid };
bool m_unique : 1 { false };
mutable bool m_has_property_table : 1 { false };
GlobalObject& m_global_object;
mutable OwnPtr<HashMap<StringOrSymbol, PropertyMetadata>> m_property_table;
@ -110,10 +115,7 @@ private:
HashMap<TransitionKey, Shape*> m_forward_transitions;
Shape* m_previous { nullptr };
StringOrSymbol m_property_name;
PropertyAttributes m_attributes { 0 };
bool m_unique { false };
Object* m_prototype { nullptr };
TransitionType m_transition_type { TransitionType::Invalid };
size_t m_property_count { 0 };
};