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add repr for empty multidimensional arrays #19862

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merged 1 commit into from Jan 7, 2017
Merged

add repr for empty multidimensional arrays #19862

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5 changes: 5 additions & 0 deletions base/show.jl
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Expand Up @@ -1630,6 +1630,9 @@ end

show(io::IO, X::AbstractArray) = showarray(io, X, true)

repremptyarray{T}(io::IO, X::Array{T}) = print(io, "Array{$T}(", join(size(X),','), ')')
repremptyarray(io, X) = nothing # by default, we don't know this constructor

function showarray(io::IO, X::AbstractArray, repr::Bool = true; header = true)
if repr && ndims(X) == 1
return show_vector(io, X, "[", "]")
Expand Down Expand Up @@ -1667,6 +1670,8 @@ function showarray(io::IO, X::AbstractArray, repr::Bool = true; header = true)
!repr)
end
end
elseif repr
repremptyarray(io, X)
end
end

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7 changes: 7 additions & 0 deletions test/show.jl
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Expand Up @@ -211,6 +211,13 @@ export A, B, C
export D, E, F
end"

# issue #19840
@test_repr "Array{Int}(0)"
@test_repr "Array{Int}(0,0)"
@test_repr "Array{Int}(0,0,0)"
@test_repr "Array{Int}(0,1)"
@test_repr "Array{Int}(0,0,1)"

# issue #8994
@test_repr "get! => 2"
@test_repr "(<) : 2"
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