World age error

[GregPlowman]

May or may not be related to #19960

This came up when testing the linked issue above, but this error happens locally (no workers involved, so ignore the module name)

module RemoteWorkerTest
    export test
    using Formatting
    test(x) = println(format(x, commas=true))
end

using RemoteWorkerTest

Julia-0.6.0-pre.beta> test(1000)
ERROR: MethodError: no method matching sprintf_JSdk(::Int64)
The applicable method may be too new: running in world age 21687, while current world is 21688.
Closest candidates are:
  sprintf_JSdk(::Any) at C:\Users\Greg\.julia\v0.6\Formatting\src\cformat.jl:64 (method too new to be called from this world context.)
Stacktrace:
 [1] #format#2(::Int64, ::Int64, ::Bool, ::Bool, ::Bool, ::Bool, ::Bool, ::Bool, ::Bool, ::Bool, ::Bool, ::String, ::String, ::Int64, ::Int64, ::String, ::Symbol, ::String, ::Formatting.#format, ::Int64) at C:\Users\Greg\.julia\v0.6\Formatting\src\cformat.jl:257
 [2] (::Formatting.#kw##format)(::Array{Any,1}, ::Formatting.#format, ::Int64) at .\<missing>:0
 [3] test(::Int64) at .\REPL[1]:4

I get a similar error when module RemoteWorkerTest is defined in a file in LOAD_PATH

Julia-0.6.0-pre.beta> versioninfo()
Julia Version 0.6.0-pre.beta.174
Commit 16d7342* (2017-04-16 22:18 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: AMD A8-7600 Radeon R7, 10 Compute Cores 4C+6G
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Steamroller)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.9.1 (ORCJIT, bdver3)

[amitmurthy]

Same error with a further reduced example:

using Formatting
format(1)

Also reported at Formatting.jl - JuliaIO/Formatting.jl#36

[yuyichao]

Yes, this seems to be a Formatting bug. It uses eval to create new functions at runtime and should either not do that or need to also use eval to call the new functions.