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suboptimal and unexpected subtyping #54349

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nsajko opened this issue May 3, 2024 · 0 comments

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domain:types and dispatch

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nsajko commented May 3, 2024 •

edited

julia> struct T{A, B<:AbstractVector} end

julia> T{<:Any,Vector{Int}} <: T  # OK
true

julia> struct S{A, B<:AbstractVector{A}} end

julia> S{<:Any,Vector{Int}} <: S  # !
false

julia> S{<:Any,Vector{<:Any}} <: S  # !
false

julia> S{T,Vector{T}} where {T} <: S  # a partial workaround
true

I guess this is caused by #54348?

The text was updated successfully, but these errors were encountered:

nsajko added the domain:types and dispatch label

nsajko changed the title ~~suboptimal and unexpected suboptimal subtyping~~ suboptimal and unexpected subtyping

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