Datatype_double.cs

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namespace System.Xml.Schema;
 
internal class Datatype_double : Datatype_anySimpleType
{
    private static readonly Type s_atomicValueType = typeof(double);
 
    private static readonly Type s_listValueType = typeof(double[]);
 
    internal override FacetsChecker FacetsChecker => DatatypeImplementation.numeric2FacetsChecker;
 
    public override XmlTypeCode TypeCode => XmlTypeCode.Double;
 
    public override Type ValueType => s_atomicValueType;
 
    internal override Type ListValueType => s_listValueType;
 
    internal override XmlSchemaWhiteSpace BuiltInWhitespaceFacet => XmlSchemaWhiteSpace.Collapse;
 
    internal override RestrictionFlags ValidRestrictionFlags => RestrictionFlags.Pattern | RestrictionFlags.Enumeration | RestrictionFlags.WhiteSpace | RestrictionFlags.MaxInclusive | RestrictionFlags.MaxExclusive | RestrictionFlags.MinInclusive | RestrictionFlags.MinExclusive;
 
    internal override XmlValueConverter CreateValueConverter(XmlSchemaType schemaType)
    {
        return XmlNumeric2Converter.Create(schemaType);
    }
 
    internal override int Compare(object value1, object value2)
    {
        return ((double)value1).CompareTo((double)value2);
    }
 
    internal override Exception TryParseValue(string s, XmlNameTable nameTable, IXmlNamespaceResolver nsmgr, out object typedValue)
    {
        typedValue = null;
        Exception ex = DatatypeImplementation.numeric2FacetsChecker.CheckLexicalFacets(ref s, this);
        if (ex == null)
        {
            ex = XmlConvert.TryToDouble(s, out var result);
            if (ex == null)
            {
                ex = DatatypeImplementation.numeric2FacetsChecker.CheckValueFacets(result, this);
                if (ex == null)
                {
                    typedValue = result;
                    return null;
                }
            }
        }
        return ex;
    }
}