When I am developing packages, I often come across the following problem. struct Step{T} end func(::Step{1}, x) = do something... func(::Step{2}, x) = do some different things... I am not sure should I use singleton types Type{Step{1}} and Type{Step{2}}, instead of singletons Step{1} and Step{2} …

Often the context suggests a preferred method: eg if the type is a container but is meaningful for some method without its contents (eg convert), or the contents are not relevant for some kind of information (Base.IteratorSize), or no value is available at some point (eg you are just creating an ins…

Should I dispatch on singleton types or their instances?

General Usage

rdeits August 30, 2019, 12:30pm 6

2 Likes

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Should I dispatch on singleton types or their instances?

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