Does the structure of a C# file affect what is compiled?

Question

Does the structure of a C# file affect what is compiled?

For example, would the order of members (in terms of where in the file it exists) affect the compiled class?

Answer 1

According to a blog entry from Eric Lippert I read the other day, the compiler does not guarantee two compilations of the same source to end up the same IL. This wasn't about method ordering, though, but I think that applies too - so, I don't think it is safe to assume any method ordering in the compiled class. I also wouldn't expect any connection between source file method ordering and IL method ordering.

Answer 2

While in most cases the order is unimportant, this is not the case with anonymous types:

new{a=1,b=2}

creates a different, incompatible type to

new{b=2,a=1}

Answer 3

there is no guarantee for the order of the members.