Fixes for nightly #176
Fixes for nightly #176
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| # table is a MethodTable object. For some reason, the :kwsorter field is not always | ||
| # defined. An undefined kwsorter seems to imply that there are no methods in the | ||
| # MethodTable with keyword arguments. | ||
| if !(Base.fieldindex(Core.MethodTable, :kwsorter, false) > 0) || isdefined(table, :kwsorter) |
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Are we sure that removing the fieldindex part is safe? I am not sure why it's here in the first place.
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I am not sure either. If isdefined(table, :kwsorter) returns true, fieldindex should have returned a strictly positive index anyways.
Perhaps this is a remnant of a time where we used to only check statically for the type (with fieldindex), and later we wanted to check for instances and added the isdefined check, without removing the former.
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It looks like it got added very intentionally in https://github.com/JuliaDocs/DocStringExtensions.jl/pull/137/files But the theory is that it's not relevant for <= 1.4?
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It got added here for "1.0 support".
cc @MichaelHatherly -- any memories from 3 years ago? 😄
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Just thinking a bit more: I think Base.fieldindex(Core.MethodTable, :kwsorter, false) > 0 is always true (specifically, Base.fieldindex(Core.MethodTable, :kwsorter, false) == 5) on < 1.4. So I think #176 (comment) just has no effect in the refactored code. But doesn't hurt either.
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Thank you @serenity4! |
Method table internals changed in JuliaLang/julia@1735d8f, breaking our former reliance on
(::MethodList).mt.The associated error was originally observed here.