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LibJS: Add fast_is<T>() for FunctionExpression and ClassExpression

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Spotted RTTI for these two above 1% in a profile.
This commit is contained in:
Andreas Kling 2021-10-07 12:05:13 +02:00
parent 41a072bded
commit df674023d6
1 changed files with 13 additions and 0 deletions
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13
Userland/Libraries/LibJS/AST.h
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@ -63,6 +63,8 @@ public:
virtual bool is_new_expression() const { return false; }
virtual bool is_member_expression() const { return false; }
virtual bool is_super_expression() const { return false; }
virtual bool is_function_expression() const { return false; }
virtual bool is_class_expression() const { return false; }
virtual bool is_expression_statement() const { return false; }
virtual bool is_identifier() const { return false; }
virtual bool is_scope_node() const { return false; }
@ -521,6 +523,9 @@ public:
bool has_name() const { return !name().is_empty(); }
Value instantiate_ordinary_function_expression(Interpreter& interpreter, GlobalObject& global_object, FlyString given_name) const;
private:
virtual bool is_function_expression() const override { return true; }
};
class ErrorExpression final : public Expression {
@ -1079,6 +1084,8 @@ public:
ThrowCompletionOr<Value> class_definition_evaluation(Interpreter& interpreter, GlobalObject& global_object, FlyString const& binding_name = {}, FlyString const& class_name = {}) const;
private:
virtual bool is_class_expression() const override { return true; }
String m_name;
RefPtr<FunctionExpression> m_constructor;
RefPtr<Expression> m_super_class;
@ -1762,6 +1769,12 @@ inline bool ASTNode::fast_is<MemberExpression>() const { return is_member_expres
template<>
inline bool ASTNode::fast_is<SuperExpression>() const { return is_super_expression(); }
template<>
inline bool ASTNode::fast_is<FunctionExpression>() const { return is_function_expression(); }
template<>
inline bool ASTNode::fast_is<ClassExpression>() const { return is_class_expression(); }
template<>
inline bool ASTNode::fast_is<Identifier>() const { return is_identifier(); }