/// <summary>
/// Registers an external parameter
/// Since these can be complex expressions, we don't try to identify them
/// and push them every time
/// The only loss may be a small memory loss (if anyone can prove me that the same Expression can be used twice)
/// </summary>
/// <param name="expression"></param>
/// <param name="alias"></param>
/// <param name="builderContext"></param>
/// <returns></returns>
public virtual InputParameterExpression RegisterParameter(Expression expression, string alias, BuilderContext builderContext)
{
var queryParameterExpression = new InputParameterExpression(expression, alias);
builderContext.ExpressionQuery.Parameters.Add(queryParameterExpression);
return(queryParameterExpression);
}
public virtual void UnregisterParameter(InputParameterExpression expression, BuilderContext builderContext)
{
builderContext.ExpressionQuery.Parameters.Remove(expression);
}
