MethodError for dictionary

[ivirshup]

Using v0.2.1 and julia v1.3.1, I've run into a method error when trying to construct a dictionary from an array I'm pretty sure should work. Here's a reduced example:

julia> using Dictionaries

julia> a = ["a" => [1,2,3], "b" => ['a', 'b', 'c']]
2-element Array{Pair{String,Array{T,1} where T},1}:
 "a" => [1, 2, 3]      
 "b" => ['a', 'b', 'c']

julia> b = convert(Array{Pair{String,_A} where _A,1}, a)
2-element Array{Pair{String,_A} where _A,1}:
 Pair{String,Array{T,1} where T}("a", [1, 2, 3])      
 Pair{String,Array{T,1} where T}("b", ['a', 'b', 'c'])

julia> dictionary(a) # Works fine
2-element HashDictionary{String,Array{T,1} where T}
 "b" │ ['a', 'b', 'c']
 "a" │ [1, 2, 3]

julia> dictionary(b)
ERROR: MethodError: no method matching _dictionary(::Type{Pair{String,_A} where _A}, ::Array{Pair{String,_A} where _A,1})
Closest candidates are:
  _dictionary(::Type{Pair{I,T}}, ::Any) where {I, T} at /Users/isaac/.julia/packages/Dictionaries/cZc5T/src/HashDictionary.jl:117
Stacktrace:
 [1] dictionary(::Array{Pair{String,_A} where _A,1}) at /Users/isaac/.julia/packages/Dictionaries/cZc5T/src/HashDictionary.jl:111
 [2] top-level scope at REPL[9]:1

julia> typeof(a)
Array{Pair{String,Array{T,1} where T},1}

julia> typeof(b)
Array{Pair{String,_A} where _A,1}

---

Ah, I think I see what's happening now:

julia> Tuple{eltype(b), typeof(b)} <: Tuple{Pair{I, T} where {I, T}, Any}
true

julia> Tuple{Type{eltype(b)}, typeof(b)} <: Tuple{Type{Pair{I, T} where {I, T}}, Any}
false

But I can't seem to fix it without making inference much worse. Hm.

---

dictionary(Dict(b)) does the trick as a workaround.

[andyferris]

Thank you for the bug report and sorry for the delay!

This was fixed by #13.