Tango Style: Struct with no members?
Benji Smith
dlanguage at benjismith.net
Sat Sep 6 14:58:51 PDT 2008
I've been reading a lot of the Tango source code lately, to educate
myself on how the library works, and more generally, how to write good
idiomatic D code.
As I've looked around, I've noticed a peculiar idiom popping up again
and again that I've never seen or heard of before: struct definitions
with no member fields, only functions. You can see it in
"tango.time.WallClock" or "lib.common.tango.core.Runtime".
What's the rationale behind that?
I suppose it's something like a class with nothing but static methods.
But then why not just define a module with only free functions? Is there
a hidden benefit to implementing a pseudo-module as an empty struct?
Thanks!
--benji
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