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LibJS: Add parsing and evaluation of private fields and methods

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davidot 2021-10-12 22:45:52 +02:00 • committed by Linus Groh
parent c7a6572789
commit 16cc82460f
9 changed files with 368 additions and 69 deletions
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29
Userland/Libraries/LibJS/AST.h
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@ -1000,6 +1000,23 @@ private:
mutable Optional<EnvironmentCoordinate> m_cached_environment_coordinate;
};
class PrivateIdentifier final : public Expression {
public:
explicit PrivateIdentifier(SourceRange source_range, FlyString string)
: Expression(source_range)
, m_string(move(string))
{
}
FlyString const& string() const { return m_string; }
virtual Value execute(Interpreter&, GlobalObject&) const override;
virtual void dump(int indent) const override;
private:
FlyString m_string;
};
class ClassElement : public ASTNode {
public:
ClassElement(SourceRange source_range, bool is_static)
@ -1019,15 +1036,19 @@ public:
virtual ElementKind class_element_kind() const = 0;
bool is_static() const { return m_is_static; }
using ClassElementName = Variant<PropertyName, PrivateName>;
struct ClassFieldDefinition {
PropertyName name;
ClassElementName name;
ECMAScriptFunctionObject* initializer { nullptr };
};
// We use the Completion also as a ClassStaticBlockDefinition Record.
using ClassValue = Variant<ClassFieldDefinition, Completion>;
using ClassValue = Variant<ClassFieldDefinition, Completion, PrivateElement>;
virtual ThrowCompletionOr<ClassValue> class_element_evaluation(Interpreter&, GlobalObject&, Object& home_object) const = 0;
virtual Optional<FlyString> private_bound_identifier() const { return {}; };
private:
bool m_is_static { false };
};
@ -1054,6 +1075,7 @@ public:
virtual void dump(int indent) const override;
virtual ThrowCompletionOr<ClassValue> class_element_evaluation(Interpreter&, GlobalObject&, Object& home_object) const override;
virtual Optional<FlyString> private_bound_identifier() const override;
private:
NonnullRefPtr<Expression> m_key;
@ -1078,6 +1100,7 @@ public:
virtual void dump(int indent) const override;
virtual ThrowCompletionOr<ClassValue> class_element_evaluation(Interpreter& interpreter, GlobalObject& object, Object& home_object) const override;
virtual Optional<FlyString> private_bound_identifier() const override;
private:
NonnullRefPtr<Expression> m_key;
@ -1536,6 +1559,8 @@ public:
String to_string_approximation() const;
bool ends_in_private_name() const;
private:
virtual bool is_member_expression() const override { return true; }