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?
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2Why not just try it out? – sloth Jun 22 '12 at 09:22
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...and tell us what you found out? – Daren Thomas Jun 22 '12 at 09:24
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1...and use different compilers to cross compare. And then write a nice blog post about it and get famous instantly :) – Daren Thomas Jun 22 '12 at 09:25
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No, AFAIK. C does, C++ sometimes does, C# not. Anyway you can check the real code statement using .NET Reflector decompiler. – master-lame-master Jun 22 '12 at 09:25
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Isn't it the C# file that's compiled, so you're asking if the file effects the file. :P – George Duckett Jun 22 '12 at 09:26
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BigYellowCactus, I have for a small class with a few members and found nothing, but that doesn't prove that it doesn't have an affect. – StuperUser Jun 22 '12 at 09:37
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@GeorgeDuckett Yes, my grammar is slightly ambiguous in the first paragraph, but I do mean the resulting compiled IL :) – StuperUser Jun 22 '12 at 09:41
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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.
Daren Thomas
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2http://blogs.msdn.com/b/ericlippert/archive/2012/05/31/past-performance-is-no-guarantee-of-future-results.aspx is a link to the blog. – RB. Jun 22 '12 at 09:24
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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}
spender
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Do you know of any cases other than serialisation (http://stackoverflow.com/questions/3282991/serialize-deserialize-objects-order-of-fields-matters), where the order is important? – StuperUser Jun 22 '12 at 09:45
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there is no guarantee for the order of the members.
Kishore Kumar
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1Are you sure that's correct (member names not being the same)? When using something like reflection or ILSpy you can see they are unchanged. – George Duckett Jun 22 '12 at 09:25
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