public static Expression <Func <TSource, TRight> > Ext2 <TSource, TRight>(this LambdaExpression left, Expression <Func <TSource, TRight> > right)
{
//Console.WriteLine("EXTENDING.........................");
var leftBody = ((MemberInitExpression)left.Body);
var rightBody = ((MemberInitExpression)right.Body);
//Console.WriteLine(left.GetType().ToString());
var param = left.Parameters[0];
//var replace = new LinqHelpers.ParameterReplaceVisitor(right.Parameters[0], param);
Console.WriteLine("left parameter: " + left.Parameters[0].Type.ToString());
Console.WriteLine("right parameter: " + right.Parameters[0].Type.ToString());
var replace = new LinqHelpers.ParameterReplaceVisitor(left.Parameters[0], right.Parameters[0]);
//List<MemberBinding> bindings = new List<MemberBinding>(rightBody.Bindings.OfType<MemberAssignment>());
List <MemberBinding> bindings = new List <MemberBinding>();
foreach (var binding in leftBody.Bindings.OfType <MemberAssignment>())
{
bindings.Add(Expression.Bind(binding.Member, replace.VisitAndConvert(binding.Expression, "Combine")));
//bindings.Insert()
//bindings.Add(Expression.Bind(binding.Member, binding.Expression));
//Expression.Bind()
}
bindings.AddRange(rightBody.Bindings.OfType <MemberAssignment>());
return(Expression.Lambda <Func <TSource, TRight> >(Expression.MemberInit(rightBody.NewExpression, bindings), right.Parameters[0]));
}
public static Expression <Func <TSource, TRight> > Extend <TSource, TLeft, TRight>(this Expression <Func <TSource, TLeft> > left, Expression <Func <TSource, TRight> > right)
{
//Console.WriteLine("EXTENDING.........................");
var leftBody = ((MemberInitExpression)left.Body);
var rightBody = ((MemberInitExpression)right.Body);
Console.WriteLine(left.GetType().ToString());
var param = left.Parameters[0];
var replace = new LinqHelpers.ParameterReplaceVisitor(right.Parameters[0], param);
List <MemberBinding> bindings = new List <MemberBinding>(leftBody.Bindings.OfType <MemberAssignment>());
foreach (var binding in rightBody.Bindings.OfType <MemberAssignment>())
{
bindings.Add(Expression.Bind(binding.Member, replace.VisitAndConvert(binding.Expression, "Combine")));
}
return(Expression.Lambda <Func <TSource, TRight> >(Expression.MemberInit(rightBody.NewExpression, bindings), param));
}
