/// <summary>
/// Parse test function
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
private Expression <Func <VariantValue, VariantValue> > ParseScalarLambda(
SqlSelectParser.ScalarTypeFunctionContext context)
{
if (context.IS_DEFINED() != null)
{
return(s => _serializer.FromObject(s != null));
}
if (context.IS_NULL() != null)
{
return(s => _serializer.FromObject(s != null && s.IsNull()));
}
if (context.IS_BOOL() != null)
{
return(s => _serializer.FromObject(s != null && s.IsBoolean));
}
if (context.IS_NUMBER() != null)
{
return(s => _serializer.FromObject(s != null && s.IsDecimal));
}
if (context.IS_STRING() != null)
{
return(s => _serializer.FromObject(s != null && s.IsString));
}
if (context.IS_OBJECT() != null)
{
return(s => _serializer.FromObject(s != null && s.IsObject));
}
return(s => _serializer.FromObject(true));
}
/// <summary>
/// Parse test function
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
private Expression <Func <JsonToken, JsonToken> > ParseScalarLambda(
SqlSelectParser.ScalarTypeFunctionContext context)
{
if (context.IS_DEFINED() != null)
{
return(s => JToken.FromObject(s != null));
}
if (context.IS_NULL() != null)
{
return(s => JToken.FromObject(s != null &&
(((JToken)s).Type == JTokenType.Null)));
}
if (context.IS_BOOL() != null)
{
return(s => JToken.FromObject(s != null &&
(((JToken)s).Type == JTokenType.Boolean)));
}
if (context.IS_NUMBER() != null)
{
return(s => JToken.FromObject(s != null &&
(((JToken)s).Type == JTokenType.Float || ((JToken)s).Type == JTokenType.Integer)));
}
if (context.IS_STRING() != null)
{
return(s => JToken.FromObject(s != null &&
(((JToken)s).Type == JTokenType.String)));
}
if (context.IS_OBJECT() != null)
{
return(s => JToken.FromObject(s != null &&
(((JToken)s).Type == JTokenType.Object)));
}
return(s => JToken.FromObject(true));
}