using System;

namespace SharpGen.Transform
{
    public readonly struct PrimitiveTypeIdentity : IEquatable<PrimitiveTypeIdentity>
    {
        public readonly PrimitiveTypeCode Type;
        public readonly byte PointerCount;

        public PrimitiveTypeIdentity(PrimitiveTypeCode type, byte pointerCount = 0)
        {
            Type = type;
            PointerCount = pointerCount;
        }

        public bool Equals(PrimitiveTypeIdentity other) => Type == other.Type && PointerCount == other.PointerCount;

        public override bool Equals(object obj) => obj is PrimitiveTypeIdentity other && Equals(other);

        public override int GetHashCode()
        {
            unchecked
            {
                return ((int) Type * 397) ^ PointerCount.GetHashCode();
            }
        }

        public static bool operator ==(PrimitiveTypeIdentity left, PrimitiveTypeIdentity right) => left.Equals(right);

        public static bool operator !=(PrimitiveTypeIdentity left, PrimitiveTypeIdentity right) => !left.Equals(right);
    }
}