A playful competition: who can define a method that invalidates the most code?

Tooling
46

Not as bad as the winning convert methods, but it’s also easy to rack up a lot of invalidations with constructors

julia> using SnoopCompileCore

julia> struct X <: Integer; i::Int; end

julia> invalidations = @snoopr (::Type{T})(x::X) where {T} = T(x.i);

julia> using SnoopCompile; length(uinvalidated(invalidations))
733
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