BadObjectReference.cs

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using BadScript2.Runtime.Error;
using BadScript2.Runtime.Objects.Types;
 
namespace BadScript2.Runtime.Objects;
 
public abstract class BadObjectReference : BadObject
{
    public abstract BadObject Resolve();
 
    public abstract void Delete();
 
    public abstract void Set(BadObject obj, BadPropertyInfo? info = null, bool noChangeEvent = false);
 
    public static BadObjectReference Make(
        string refText,
        Func<BadObject> getter,
        Action<BadObject, BadPropertyInfo?>? setter = null,
        Action? delete = null)
    {
        return new BadObjectReferenceImpl(refText, getter, (o, i, _) =>
        {
            if (setter == null)
            {
                throw new BadRuntimeException("Cannot set reference " + refText + " because it is read-only");
            }
            setter(o, i);
        }, delete);
    }
    public static BadObjectReference Make(
        string refText,
        Func<BadObject> getter,
        Action<BadObject, BadPropertyInfo?, bool>? setter,
        Action? delete = null)
    {
        return new BadObjectReferenceImpl(refText, getter, setter, delete);
    }
 
    private class BadObjectReferenceImpl : BadObjectReference
    {
        private readonly Action? m_Delete;
 
        private readonly Func<BadObject> m_Getter;
 
        private readonly string m_RefText;
 
        private readonly Action<BadObject, BadPropertyInfo?, bool>? m_Setter;
 
        public BadObjectReferenceImpl(
            string refText,
            Func<BadObject> getter,
            Action<BadObject, BadPropertyInfo?, bool>? setter,
            Action? delete)
        {
            m_Getter = getter;
            m_Setter = setter;
            m_Delete = delete;
            m_RefText = refText;
        }
 
        public override BadClassPrototype GetPrototype()
        {
            return m_Getter().GetPrototype();
        }
 
        public override BadObject Resolve()
        {
            return m_Getter();
        }
 
        public override void Set(BadObject obj, BadPropertyInfo? info = null, bool noChangeEvent = false)
        {
            if (m_Setter == null)
            {
                throw new BadRuntimeException("Cannot set reference " + m_RefText + " because it is read-only");
            }
 
            m_Setter(obj, info ?? new BadPropertyInfo(BadAnyPrototype.Instance), noChangeEvent);
        }
 
        public override string ToSafeString(List<BadObject> done)
        {
            return m_RefText;
        }
 
        public override void Delete()
        {
            if (m_Delete == null)
            {
                throw new BadRuntimeException("Cannot set delete " + m_RefText + " because it is read-only");
            }
 
            m_Delete.Invoke();
        }
    }
}