DecimalLiteral.cs

using System;
using Waher.Content.Semantic.Ontologies;
using Waher.Runtime.Inventory;
 
namespace Waher.Content.Semantic.Model.Literals
{
    public class DecimalLiteral : SemanticNumericLiteral
    {
        public DecimalLiteral()
            : base()
        {
        }
 
        public DecimalLiteral(decimal Value)
            : base(Value, CommonTypes.Encode(Value))
        {
        }
 
        public DecimalLiteral(decimal Value, string StringValue)
            : base(Value, StringValue)
        {
        }
 
        public static readonly string TypeUri = XmlSchema.@decimal.OriginalString;
 
        public override string StringType => TypeUri;
 
        public override Grade Supports(Type ValueType)
        {
            return ValueType == typeof(decimal) ? Grade.Ok : Grade.NotAtAll;
        }
 
        public override double ComparableValue => (double)((decimal)this.Value);
 
        public override ISemanticLiteral Parse(string Value, string DataType, string Language)
        {
            if (CommonTypes.TryParse(Value, out decimal d))
                return new DecimalLiteral(d, Value);
            else
                return new CustomLiteral(Value, DataType, Language);
        }
 
        public override ISemanticLiteral Encapsulate(object Value)
        {
            if (Value is decimal Typed)
                return new DecimalLiteral(Typed);
            else
                return new StringLiteral(Value?.ToString() ?? string.Empty);
        }
 
        public override bool Equals(object obj)
        {
            return obj is DecimalLiteral Typed &&
                Typed.StringValue == this.StringValue;
        }
 
        public override int GetHashCode()
        {
            return this.StringValue.GetHashCode();
        }
    }
}