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not-nested for loop causes UndefVarError: #temp# not defined #14

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goretkin opened this issue Jan 17, 2018 · 1 comment · May be fixed by #100
Open

not-nested for loop causes UndefVarError: #temp# not defined #14

goretkin opened this issue Jan 17, 2018 · 1 comment · May be fixed by #100

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@goretkin
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on ResumableFunctions 0.1.10 and julia 0.6.2

using ResumableFunctions

@resumable function gen(n)
  for i=1:n, j=1:n
    @yield i
  end
end

collect(gen(10))

gives

ERROR: UndefVarError: #temp# not defined
Stacktrace:
 [1] (::##688)(::Void) at /home/ubuntu/.julia/v0.6/MacroTools/src/utils.jl:2
 [2] _collect(::UnitRange{Int64}, ::##688, ::Base.HasEltype, ::Base.SizeUnknown) at ./array.jl:442
 [3] collect(::##688) at ./array.jl:431
@BenLauwens
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BenLauwens commented Jan 22, 2018 •
edited
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Hi

Multiple iterators in a for statement are not (yet) implemented!
Your code can be executed as:

using ResumableFunctions

@resumable function gen(n)
  for i=1:n
    for j=1:n
      @yield i
    end
  end
end

collect(gen(10))

I will put this on my todo list;)

Regards

Ben

@BenLauwens BenLauwens mentioned this issue Feb 24, 2018
Closed
@thofma thofma linked a pull request Aug 10, 2024 that will close this issue
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fix: scoping thofma/ResumableFunctions.jl
2 participants
@goretkin @BenLauwens