using Parameters: @unpack does not work

[tpapp]

MWE:

module Foo

using Parameters: @unpack

struct Bar
    x
    y
end

function f(bar::Bar)
    @unpack x, y = bar
    x + y
end

end

Foo.f(Foo.Bar(1, 2))

Possibly some tricky escaping issue?

[mauro3]

This is because:

julia> module A
       using Parameters: @unpack
       @show Parameters
       end
ERROR: UndefVarError: Parameters not defined

but the @unpack expands to

julia> @macroexpand @unpack  x= a                                                                                                                                        
quote                                                                                                                                                                                                                 
     x = Parameters.unpack(##664, Val{:x}())                                                                                                                          
end

I'll need to ponder this a bit, also in light of JuliaLang/julia#23579. Thanks for reporting!

[mauro3]

Ok, this is my sloppy handling of escaping coming to haunt me... I should probably just do it properly.

[mauro3]

I'll tag a new release once CI is through.

[tpapp]

Thanks for the amazingly quick fix, I PR'd some unit tests.