World error when pasting code into REPL (prompt pasting) that loads Pkg and also switches to Pkg mode

[KristofferC]

Paste this into the REPL without loading Pkg first:

julia> 1+1
2

pkg> st

julia> 1+1
2

julia> 1+1
2


(@v1.12) pkg> st
┌ Error: Error in the keymap
│   exception =
│    MethodError: no method matching (::REPLExt.var"#31#34"{REPL.LineEditREPL, REPL.LineEdit.Prompt})(::REPL.LineEdit.MIState, ::IOBuffer, ::Bool)
│    The applicable method may be too new: running in world age 26348, while current world is 26369.
│    
│    Closest candidates are:
│      (::REPLExt.var"#31#34")(::Any, ::Any, ::Any) (method too new to be called from this world context.)
│       @ REPLExt ~/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/Pkg/ext/REPLExt/REPLExt.jl:118
│    
│    Stacktrace:
│     [1] (::REPL.var"#113#125"{Regex, Regex, Int64, Int64, REPL.LineEdit.Prompt, REPL.LineEdit.Prompt, REPL.LineEdit.Prompt})(::REPL.LineEdit.MIState, ::Any, ::Vararg{Any})
│       @ REPL ~/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/REPL/src/REPL.jl:1342
│     [2] #invokelatest#2
│       @ ./essentials.jl:1030 [inlined]
│     [3] invokelatest
│       @ ./essentials.jl:1027 [inlined]
│     [4] (::REPL.LineEdit.var"#27#28"{REPL.var"#113#125"{Regex, Regex, Int64, Int64, REPL.LineEdit.Prompt, REPL.LineEdit.Prompt, REPL.LineEdit.Prompt}, String})(s::Any, p::Any)
│       @ REPL.LineEdit ~/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/REPL/src/LineEdit.jl:1700
│     [5] prompt!(term::REPL.Terminals.TextTerminal, prompt::REPL.LineEdit.ModalInterface, s::REPL.LineEdit.MIState)
│       @ REPL.LineEdit ~/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/REPL/src/LineEdit.jl:2837
│     [6] run_interface(terminal::REPL.Terminals.TextTerminal, m::REPL.LineEdit.ModalInterface, s::REPL.LineEdit.MIState)
│       @ REPL.LineEdit ~/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/REPL/src/LineEdit.jl:2739
│     [7] run_frontend(repl::REPL.LineEditREPL, backend::REPL.REPLBackendRef)
│       @ REPL ~/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/REPL/src/REPL.jl:1406
│     [8] (::REPL.var"#75#81"{REPL.LineEditREPL, REPL.REPLBackendRef})()
│       @ REPL ~/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/REPL/src/REPL.jl:456
└ @ REPL.LineEdit ~/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/REPL/src/LineEdit.jl:2839

guess this needs an @invokelatest.

[vtjnash]

I think we did this, since I can switch to Pkg mode in v1.10

[KristofferC]

Pkg is in the sysimage in 1.10 though?

[KristofferC]

Updated the OP to show that this is still an issue.

[KristofferC]

This call is actually already using an invokelatest so it is a bit strange to me why this happens.

[JeffBezanson]

I think

julia/stdlib/REPL/src/REPL.jl

Line 1350 in f9e08f7

LineEdit.mode(s).on_done(s, LineEdit.buffer(s), true)

needs an invokelatest as well. We run the paste key handler with invokelatest, but then execution of the line loads Pkg and the world changes again.