I’m looking for a hypothetical @istoplevel, presumably a macro, which could work like this: module Foo @istoplevel() # true end julia> @istoplevel() # true function foo() @istoplevel() # false end Does anything like this exist or can it be constructed?

Ha! That works, thanks. macro istoplevel() canary = gensym("canary") quote $(esc(canary)) = true Base.isdefined($__module__, $(QuoteNode(canary))) end end I think that might be OK for me, but would still be interested in if there’s a more direct solution.

Sorry for necroposting. Just be aware that this detects ‘toplevel scope ’, but not ‘toplevel’ in the sense that “a module may be defined here”. In particular: println(@istoplevel) # true let println(@istoplevel) # false end # but.. begin println(@istoplevel) # true end # and.. if true pri…

Is there a way to determine whether code is toplevel?

General Usage

yuyichao May 22, 2020, 3:25pm 2

Yes, you can set a gensym variable and test if it is indeed set on __module__.

Should macros get an `__istoplevel__` or `__scope__` argument?

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Is there a way to determine whether code is toplevel?

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