private static BsonValue Convert(
object value,
Conversion conversion
) {
// note: the ToBoolean conversions use the JavaScript definition of truthiness
switch (conversion) {
// note: I expect this switch statement to be compiled using a jump table and therefore to be very efficient
case Conversion.None: return (BsonValue) value;
case Conversion.ByteArrayToBsonBinary: return new BsonBinaryData((byte[]) value);
case Conversion.ByteArrayToBsonObjectId: return BsonObjectId.Create((byte[]) value);
case Conversion.ByteToBsonBoolean: return BsonBoolean.Create((byte) value != 0);
case Conversion.ByteToBsonDouble: return new BsonDouble((double) (byte) value);
case Conversion.ByteToBsonInt32: return BsonInt32.Create((int) (byte) value);
case Conversion.ByteToBsonInt64: return new BsonInt64((long) (byte) value);
case Conversion.CharToBsonBoolean: return BsonBoolean.Create((char) value != 0);
case Conversion.CharToBsonDouble: return new BsonDouble((double) (char) value);
case Conversion.CharToBsonInt32: return BsonInt32.Create((int) (char) value);
case Conversion.CharToBsonInt64: return new BsonInt64((long) (char) value);
case Conversion.DateTimeOffsetToBsonDateTime: return new BsonDateTime(((DateTimeOffset) value).UtcDateTime);
case Conversion.DateTimeToBsonDateTime: return new BsonDateTime((DateTime) value);
case Conversion.DoubleToBsonBoolean: var d = (double) value; return BsonBoolean.Create(!(double.IsNaN(d) || d == 0.0));
case Conversion.GuidToBsonBinary: return new BsonBinaryData((Guid) value);
case Conversion.Int16ToBsonBoolean: return BsonBoolean.Create((short) value != 0);
case Conversion.Int16ToBsonDouble: return new BsonDouble((double) (short) value);
case Conversion.Int16ToBsonInt32: return BsonInt32.Create((int) (short) value);
case Conversion.Int16ToBsonInt64: return new BsonInt64((long) (short) value);
case Conversion.Int32ToBsonBoolean: return BsonBoolean.Create((int) value != 0);
case Conversion.Int32ToBsonDouble: return new BsonDouble((double) (int) value);
case Conversion.Int32ToBsonInt64: return new BsonInt64((long) (int) value);
case Conversion.Int64ToBsonBoolean: return BsonBoolean.Create((long) value != 0);
case Conversion.Int64ToBsonDouble: return new BsonDouble((double) (long) value);
case Conversion.Int64ToBsonTimestamp: return new BsonTimestamp((long) value);
case Conversion.BsonMaxKeyToBsonBoolean: return BsonBoolean.True;
case Conversion.BsonMinKeyToBsonBoolean: return BsonBoolean.True;
case Conversion.NewBsonBoolean: return BsonBoolean.Create((bool) value);
case Conversion.NewBsonDouble: return new BsonDouble((double) value);
case Conversion.NewBsonInt32: return BsonInt32.Create((int) value);
case Conversion.NewBsonInt64: return new BsonInt64((long) value);
case Conversion.NewBsonObjectId: return new BsonObjectId((ObjectId) value);
case Conversion.NewBsonString: return new BsonString((string) value);
case Conversion.BsonNullToBsonBoolean: return BsonBoolean.False;
case Conversion.RegexToBsonRegularExpression: return new BsonRegularExpression((Regex) value);
case Conversion.SByteToBsonBoolean: return BsonBoolean.Create((sbyte) value != 0);
case Conversion.SByteToBsonDouble: return new BsonDouble((double) (sbyte) value);
case Conversion.SByteToBsonInt32: return BsonInt32.Create((int) (sbyte) value);
case Conversion.SByteToBsonInt64: return new BsonInt64((long) (sbyte) value);
case Conversion.SingleToBsonBoolean: var f = (float) value; return BsonBoolean.Create(!(float.IsNaN(f) || f == 0.0f));
case Conversion.SingleToBsonDouble: return new BsonDouble((double) (float) value);
case Conversion.StringToBsonBoolean: return BsonBoolean.Create((string) value != "");
case Conversion.StringToBsonDateTime:
var formats = new string[] {
"yyyy-MM-ddK",
"yyyy-MM-ddTHH:mm:ssK",
"yyyy-MM-ddTHH:mm:ss.FFFFFFFK",
};
var dt = DateTime.ParseExact((string) value, formats, null, DateTimeStyles.AdjustToUniversal | DateTimeStyles.AssumeUniversal);
return new BsonDateTime(dt);
case Conversion.StringToBsonDouble: return new BsonDouble(XmlConvert.ToDouble((string) value));
case Conversion.StringToBsonInt32: return BsonInt32.Create(XmlConvert.ToInt32((string) value));
case Conversion.StringToBsonInt64: return new BsonInt64(XmlConvert.ToInt64((string) value));
case Conversion.StringToBsonJavaScript: return new BsonJavaScript((string) value);
case Conversion.StringToBsonJavaScriptWithScope: return new BsonJavaScriptWithScope((string) value, new BsonDocument());
case Conversion.StringToBsonObjectId: return BsonObjectId.Create((string) value);
case Conversion.StringToBsonRegularExpression: return new BsonRegularExpression((string) value);
case Conversion.StringToBsonSymbol: return BsonSymbol.Create((string) value);
case Conversion.StringToBsonTimestamp: return new BsonTimestamp(XmlConvert.ToInt64((string) value));
case Conversion.UInt16ToBsonBoolean: return BsonBoolean.Create((ushort) value != 0);
case Conversion.UInt16ToBsonDouble: return new BsonDouble((double) (ushort) value);
case Conversion.UInt16ToBsonInt32: return BsonInt32.Create((int) (ushort) value);
case Conversion.UInt16ToBsonInt64: return new BsonInt64((long) (ushort) value);
case Conversion.UInt32ToBsonBoolean: return BsonBoolean.Create((uint) value != 0);
case Conversion.UInt32ToBsonDouble: return new BsonDouble((double) (uint) value);
case Conversion.UInt32ToBsonInt32: return BsonInt32.Create((int) (uint) value);
case Conversion.UInt32ToBsonInt64: return new BsonInt64((long) (uint) value);
case Conversion.UInt64ToBsonBoolean: return BsonBoolean.Create((ulong) value != 0);
case Conversion.UInt64ToBsonDouble: return new BsonDouble((double) (ulong) value);
case Conversion.UInt64ToBsonInt64: return new BsonInt64((long) (ulong) value);
case Conversion.UInt64ToBsonTimestamp: return new BsonTimestamp((long) (ulong) value);
}
throw new BsonInternalException("Unexpected Conversion.");
}
#endregion
