internal Expression GetExprssion <T>(
ParameterExpression parameter,
Func <string, Type, object> valueDeserializationFunctionFromUpTree = null,
Dictionary <string, OperatorHandler> operatorToExpressionConvertorsOverridesFromUpTree = null)
{
var deserializationFunction = ValueDeserializationFunctionOverride ?? valueDeserializationFunctionFromUpTree;
var operatorToExpressionConvertersOverrides = OperatorToExpressionConvertersOverrides ?? operatorToExpressionConvertorsOverridesFromUpTree;
if (Filter != null)
{
return(GetExpresionFromCondition <T>(parameter, deserializationFunction, operatorToExpressionConvertersOverrides));
}
if (LeftTreeNode == null || RightTreeNode == null)
{
throw new InvalidOperationException("FilterTreeNode requires either Filter or LeftTreeNode and RightTreeNode.");
}
if (LogicalOperator == LogicalOpertor.AND)
{
return(Expression.And(
LeftTreeNode.GetExprssion <T>(parameter, deserializationFunction, operatorToExpressionConvertersOverrides),
RightTreeNode.GetExprssion <T>(parameter, deserializationFunction, operatorToExpressionConvertersOverrides)));
}
return(Expression.Or(
LeftTreeNode.GetExprssion <T>(parameter, deserializationFunction, operatorToExpressionConvertersOverrides),
RightTreeNode.GetExprssion <T>(parameter, deserializationFunction, operatorToExpressionConvertersOverrides)));
}
