module aliases and efficiency

[Tamas Papp]

Reading through the issues and the mailing list (eg [1]), I came across
a technique for aliasing long module names when I don't want to use
`using`, eg

--8<---------------cut here---------------start------------->8---
module MySuperLongModuleName
f() = 42
end

module Foo
import MySuperLongModuleName
M=MySuperLongModuleName
test() = M.f()
end
--8<---------------cut here---------------end--------------->8---

However, I think that the resolution of M.f() happens at runtime, which
will prevent Julia from inlining the function --- is this the case?
Would this affect efficiency? Is there a workaround?

Best,

Tamas

[1] https://github.com/JuliaLang/julia/issues/1255

[Jameson Nash]

The general workaround for any question about the performance of globals is to stick `const` in front. I don't see why that shouldn't work here too.