Under
julia> versioninfo()
Julia Version 0.6.0-dev.1529
Commit 9ae5e06* (2016-12-08 23:28 UTC)
Platform Info:
OS: macOS (x86_64-apple-darwin15.6.0)
CPU: Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz
WORD_SIZE: 64
BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Sandybridge)
LAPACK: libopenblas64_
LIBM: libopenlibm
LLVM: libLLVM-3.7.1 (ORCJIT, ivybridge)
the following works as expected
julia> begin
foo(args...) = bar(((),), (), args...)
bar(scals, mats, lastarg::SparseMatrixCSC) = (scals..., ()), (mats..., lastarg)
bar(scals, mats, nextarg, remargs...) = bar((Base.front(scals)..., (last(scals)..., nextarg)), mats, remargs...)
# bar(scals, mats, nextarg::SparseMatrixCSC, remargs...) = bar((scals..., ()), (mats..., nextarg), remargs...)
end
bar (generic function with 2 methods)
julia> foo(1.0, speye(2))
(((1.0,),()),(
[1, 1] = 1.0
[2, 2] = 1.0,))
but the same with the additional bar definition uncommented hangs indefinitely, and on interrupt the trace points to inference. Note that replacing the body of the commented bar definition with e.g. println("narwhal") works fine as well.
Bug, or my error? Thanks!