broadcast: align ndims implementation with intent behind code (#56999)
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…aLang#56999) The `N<:Integer` constraint was nonsensical, given that `(N === Any) || (N isa Int)`. N5N3 noticed this back in 2022: JuliaLang#44061 (comment) Follow up on JuliaLang#44061. Also xref JuliaLang#45477. (cherry picked from commit d3964b6)
topolarity
reviewed
Feb 10, 2025
| Base.ndims(BC::Type{<:Broadcasted{<:Any,Nothing}}) = _maxndims_broadcasted(BC) | ||
| # the `AbstractArrayStyle` type parameter is required to be either equal to `Any` or be an `Int` value | ||
| Base.ndims(BC::Type{<:Broadcasted{<:AbstractArrayStyle{Any},Nothing}}) = _maxndims_broadcasted(BC) | ||
| Base.ndims(::Type{<:Broadcasted{<:AbstractArrayStyle{N},Nothing}}) where {N} = N::Int |
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It's probably worth adding a test of this method directly, in addition to the end-to-end broadcasting test
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I guess that's a good idea, but this is just a backport PR, new tests should probably go to the master branch.
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Backport of PR #56999 to v1.10.
The
N<:Integerconstraint was nonsensical, given that(N === Any) || (N isa Int). N5N3 noticed this back in 2022:#44061 (comment)
Follow up on #44061. Also xref #45477.
(cherry picked from commit d3964b6)