How in-memory .net calls are in-lined in the final query in LLBLGen Pro's linq provider

gistfile1.txt

var q = ctx.Customers.Select(c=>new Customer() { CompName = SomeMethod(c.CompanyName)});

-> visit the select lambda, and convert it so it becomes:

(values, indices) => new Customer() { CompName = SomeMethod(values[indices[0]])};

then compile the lambda. At projection time, execute the lambda with the object[] obtained from the datareader as 'values' 
and a set of indices, one for each db value placed in the project. This way you can have any in-memory call in the projection
doing any code, without complicated conversions.