Type instability on using @code_warntype Colorbar(fig[1, 2]) in GLMakie.jl

[raman-maker]

MethodInstance for Colorbar(::GridPosition)
from (::Type{T})(args...; kwargs...) where T<:Block @ Makie ~/.julia/packages/Makie/tjqse/src/makielayout/blocks.jl:236
Static Parameters
T = Colorbar
Arguments
#self#::Core.Const(Colorbar)
args::Tuple{GridPosition}
Body::Any
1 ─ %1 = Makie.:(var"##1440")::Core.Const(Makie.var"##1440")
│ %2 = Core.NamedTuple()::Core.Const(NamedTuple())
│ %3 = Base.pairs(%2)::Core.Const(Base.Pairs{Symbol, Union{}, Tuple{}, @NamedTuple{}}())
│ %4 = Core.tuple(%3, #self#)::Core.Const((Base.Pairs{Symbol, Union{}, Tuple{}, @NamedTuple{}}(), Colorbar))
│ %5 = Core._apply_iterate(Base.iterate, %1, %4, args)::Any
└── return %5

[SimonDanisch]

What's the problem here?
Why should this be type stable?

[raman-maker]

I got type instability in my code. I want to get better performance by making it type stable. See Body::Any

[jkrumbiegel]

Most of Makie is type unstable as it handles input types dynamically. It's very unlikely you will find performance gains using @code_warntype on user API level code, either this needs systemwide refactors or optimizations in specific low level functions for rendering.

[raman-maker]

Ok, so i will ignore this @code_warntype message for GLMakie. Thanks.