public override object ChangeType()

in src/dotnet-svcutil/lib/src/FrameworkFork/Microsoft.Xml/Xml/schema/XmlValueConverter.cs [2779:2875]
94 lines of code
50 McCabe index (conditional complexity)

        public override object ChangeType(object value, Type destinationType, IXmlNamespaceResolver nsResolver)
        {
            if (value == null) throw new ArgumentNullException("value");
            if (destinationType == null) throw new ArgumentNullException("destinationType");

            Type sourceType = value.GetType();

            if (destinationType == ObjectType) destinationType = DefaultClrType;
            if (destinationType == BooleanType)
            {
                if (sourceType == StringType) return XmlConvert.ToBoolean((string)value);
            }
            if (destinationType == ByteType)
            {
                if (sourceType == StringType) return Int32ToByte(XmlConvert.ToInt32((string)value));
            }
            if (destinationType == ByteArrayType)
            {
                if (sourceType == StringType) return StringToBase64Binary((string)value);
            }
            if (destinationType == DateTimeType)
            {
                if (sourceType == StringType) return UntypedAtomicToDateTime((string)value);
            }
            if (destinationType == DateTimeOffsetType)
            {
                if (sourceType == StringType) return UntypedAtomicToDateTimeOffset((string)value);
            }
            if (destinationType == DecimalType)
            {
                if (sourceType == StringType) return XmlConvert.ToDecimal((string)value);
            }
            if (destinationType == DoubleType)
            {
                if (sourceType == StringType) return XmlConvert.ToDouble((string)value);
            }
            if (destinationType == Int16Type)
            {
                if (sourceType == StringType) return Int32ToInt16(XmlConvert.ToInt32((string)value));
            }
            if (destinationType == Int32Type)
            {
                if (sourceType == StringType) return XmlConvert.ToInt32((string)value);
            }
            if (destinationType == Int64Type)
            {
                if (sourceType == StringType) return XmlConvert.ToInt64((string)value);
            }
            if (destinationType == SByteType)
            {
                if (sourceType == StringType) return Int32ToSByte(XmlConvert.ToInt32((string)value));
            }
            if (destinationType == SingleType)
            {
                if (sourceType == StringType) return XmlConvert.ToSingle((string)value);
            }
            if (destinationType == TimeSpanType)
            {
                if (sourceType == StringType) return StringToDuration((string)value);
            }
            if (destinationType == UInt16Type)
            {
                if (sourceType == StringType) return Int32ToUInt16(XmlConvert.ToInt32((string)value));
            }
            if (destinationType == UInt32Type)
            {
                if (sourceType == StringType) return Int64ToUInt32(XmlConvert.ToInt64((string)value));
            }
            if (destinationType == UInt64Type)
            {
                if (sourceType == StringType) return DecimalToUInt64(XmlConvert.ToDecimal((string)value));
            }
            if (destinationType == UriType)
            {
                if (sourceType == StringType) return XmlConvert.ToUri((string)value);
            }
            if (destinationType == XmlAtomicValueType)
            {
                if (sourceType == StringType) return (new XmlAtomicValue(SchemaType, (string)value));
                if (sourceType == XmlAtomicValueType) return ((XmlAtomicValue)value);
            }
            if (destinationType == XmlQualifiedNameType)
            {
                if (sourceType == StringType) return StringToQName((string)value, nsResolver);
            }
            if (destinationType == XPathItemType)
            {
                if (sourceType == StringType) return (new XmlAtomicValue(SchemaType, (string)value));
                if (sourceType == XmlAtomicValueType) return ((XmlAtomicValue)value);
            }
            if (destinationType == StringType) return this.ToString(value, nsResolver);
            if (destinationType == XmlAtomicValueType) return (new XmlAtomicValue(SchemaType, this.ToString(value, nsResolver)));
            if (destinationType == XPathItemType) return (new XmlAtomicValue(SchemaType, this.ToString(value, nsResolver)));
            if (sourceType == XmlAtomicValueType) return ((XmlAtomicValue)value).ValueAs(destinationType, nsResolver);

            return ChangeListType(value, destinationType, nsResolver);
        }