Interpolation using $ with @cfunction in a macro reported as a closure, thus won't work on Apple Silicon

General Usage
8

Actually, no, I take that back. The problem here is that writing a macro to wrap a macro which recognizes $ syntax is quite subtle. This is because normal syntax interpolation will see and remove the $ before the inner quoted macro (the @cfunction in this case) gets to do so. I think the correct macro would be something like:

macro cplprogress(progressfunc)
    quote
        @cfunction($(Expr(:$, esc(progressfunc))), Cint, (Cdouble, Cstring, Ptr{Cvoid}))
    end
end

Then we’d have:

julia> @macroexpand @cplprogress x->x
quote
    #= REPL[41]:3 =#
    $(Expr(:cfunction, Base.CFunction, :(x->begin
          #= REPL[43]:1 =#
          x
      end), :(Main.Cint), :(Core.svec(Main.Cdouble, Main.Cstring, Main.Ptr{Main.Cvoid})), :(:ccall)))
end

In any case, yes, the original macro is using @cfunction outside a quote block, but with a $. So this is using the closure syntax.