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select components like namedtuple elements #351

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select components like namedtuple elements #351

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2 changes: 2 additions & 0 deletions src/structarray.jl
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Expand Up @@ -344,6 +344,8 @@ map(c -> c[I...], Tuple(cols))

Base.@propagate_inbounds Base.getindex(x::StructArray, I...) = _getindex(x, to_indices(x, I)...)

Base.getindex(s::StructArray{<:NamedTuple, <:Any, <:NamedTuple}, keys::Tuple{Vararg{Symbol}}) = StructArray(components(s)[keys])

Base.@propagate_inbounds function _getindex(x::StructArray{T}, I::Vararg{Int}) where {T}
cols = components(x)
@boundscheck checkbounds(x, I...)
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3 changes: 3 additions & 0 deletions test/runtests.jl
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Expand Up @@ -61,6 +61,9 @@ Base.convert(::Type{Millimeters}, x::Meters) = Millimeters(x.x*1000)

s = StructArray(a=1:5)
@test s[2:3].a === 2:3

t2 = StructArray(x = [1, 2], y = [3, 4], z = [5, 6])
@test t2[(:x, :y)] == StructArray(x = [1, 2], y = [3, 4])
end

@testset "eltype conversion" begin
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