IRTools need help: purge unused arguments from argument list of a function

[Lian_Yunlong]

Transform CodeInfo of a function to get a new function by purging unused args from its arg list

This code should work. function assign_purge_argument!(@nospecialize(p::Pair{<:Function,<:Function}), rule::Pair{Int,<:Any}) (src, dst) = p (nth, value) = rule @assert length(methods(src)) == 1 "assign_purge_argument!(src=>dst, n=>val) requires src to have only one method." mod = getmodule(dst) function change_slotnumber_after_nth(s) if s isa Core.SlotNumber return (s.id==nth+1) ? value : (s.id>nth+1 ? Core.SlotNumber(s.id-1) : s) else …

Achieved the goal without using IRTools.jl but I am still hoping to use it correctly…