awesome-uiwidgets/AwesomeUIWidgets/Assets/Scripts/Equatable/equatable_mixin.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using Unity.UIWidgets.foundation;

namespace UIWidgetsSample
{
    
    public abstract class EquatableMixin: IEquatable<EquatableMixin> {
        /// {@macro equatable_props}
        private List<object> props
        {
            get;
        }

        /// {@macro equatable_stringify}
        // ignore: avoid_returning_null
        bool? stringify
        {
            get
            {
                return null;
            }
        }

        public static bool operator ==(EquatableMixin left,EquatableMixin right) {
            return Equals(left, right) && Equals(left.props, right.props);
        }

        public static bool operator !=(EquatableMixin left, EquatableMixin right)
        {
            return !(left == right);
        }

        //@override int get hashCode => runtimeType.hashCode ^ mapPropsToHashCode(props);

    public override string ToString() {
        switch (stringify) {
            case true:
                return EquatableUtils.mapPropsToString(this.GetType(),  props);
            case false:
                return  this.GetType().ToString();
            default:
                return EquatableConfig.stringify == true
                    ? EquatableUtils.mapPropsToString(this.GetType(), props)
                    :  this.GetType().ToString();
        }
    }

    public bool Equals(EquatableMixin other)
    {
        if (ReferenceEquals(null, other)) return false;
        if (ReferenceEquals(this, other)) return true;
        return Equals(props, other.props);
    }

    public override bool Equals(object obj)
    {
        if (ReferenceEquals(null, obj)) return false;
        if (ReferenceEquals(this, obj)) return true;
        if (obj.GetType() != this.GetType()) return false;
        return Equals((EquatableMixin) obj);
    }

    public override int GetHashCode()
    {
        return (props != null ? props.GetHashCode() : 0);
    }
    }
    
    
}