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Overloading => crashes the REPL (and works sometimes when loaded from files) #51274

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bagohart opened this issue Sep 11, 2023 · 1 comment
Closed

Overloading => crashes the REPL (and works sometimes when loaded from files) #51274

bagohart opened this issue Sep 11, 2023 · 1 comment

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@bagohart
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  1. The output of versioninfo()
Julia Version 1.9.3
Commit bed2cd540a1 (2023-08-24 14:43 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 12 × AMD Ryzen 5 5625U with Radeon Graphics
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-14.0.6 (ORCJIT, znver3)
  Threads: 1 on 12 virtual cores
  1. How you installed Julia:
    using juliaup
  2. A minimal working example (MWE), also known as a minimum reproducible example
    try this at the REPL:
=>(a,b) = a+b

I get:

Error showing value of type UnionAll:
ERROR: 
SYSTEM (REPL): showing an error caused an error
ERROR: 
SYSTEM (REPL): caught exception of type MethodError while trying to handle a nested exception; giving up

Any further input crashes the REPL:

5

like this:


Unhandled Task ERROR: MethodError: no method matching +(::Symbol, ::Tuple{Int64, Int64})

Closest candidates are:
  +(::Any, ::Any, ::Any, ::Any...)
   @ Base operators.jl:578

Stacktrace:
 [1] Pair(a::Symbol, b::Tuple{Int64, Int64})
   @ Main REPL[2]:1
 [2] handle_message(logger::Logging.ConsoleLogger, level::Base.CoreLogging.LogLevel, message::Any, _module::Any, group::Any, id::Any, filepath::Any, line::Any; kwargs::Base.Pairs{Symbol, V, Tuple{Vararg{Symbol, N}}, NamedTuple{names, T}} where {V, N, names, T<:Tuple{Vararg{Any, N}}})
   @ Logging ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/Logging/src/ConsoleLogger.jl:129
 [3] invokelatest(::Any, ::Any, ::Vararg{Any}; kwargs::Base.Pairs{Symbol, Tuple{BoundsError, Vector{Union{Ptr{Nothing}, Base.InterpreterIP}}}, Tuple{Symbol}, NamedTuple{(:exception,), Tuple{Tuple{BoundsError, Vector{Union{Ptr{Nothing}, Base.InterpreterIP}}}}}})
   @ Base essentials.jl:821
 [4] macro expansion
   @ ./logging.jl:365 [inlined]
 [5] prompt!(term::REPL.Terminals.TextTerminal, prompt::REPL.LineEdit.ModalInterface, s::REPL.LineEdit.MIState)
   @ REPL.LineEdit ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/REPL/src/LineEdit.jl:2742
 [6] run_interface(terminal::REPL.Terminals.TextTerminal, m::REPL.LineEdit.ModalInterface, s::REPL.LineEdit.MIState)
   @ REPL.LineEdit ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/REPL/src/LineEdit.jl:2642
 [7] run_frontend(repl::REPL.LineEditREPL, backend::REPL.REPLBackendRef)
   @ REPL ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/REPL/src/REPL.jl:1300
 [8] (::REPL.var"#62#68"{REPL.LineEditREPL, REPL.REPLBackendRef})()
   @ REPL ./task.jl:514

caused by: BoundsError: attempt to access Char at index [2]
Stacktrace:
  [1] indexed_iterate(I::Char, i::Int64, state::Bool)
    @ Base tuple.jl:97
  [2] rstrip(f::typeof(isspace), s::String)
    @ Base strings/util.jl:379
  [3] rstrip(s::String)
    @ Base strings/util.jl:384
  [4] add_history(hist::REPL.REPLHistoryProvider, s::REPL.LineEdit.PromptState)
    @ REPL ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/REPL/src/REPL.jl:642
  [5] add_history(s::REPL.LineEdit.PromptState)
    @ REPL.LineEdit ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/REPL/src/LineEdit.jl:1427
  [6] add_history(::REPL.LineEdit.MIState)
    @ REPL.LineEdit ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/REPL/src/LineEdit.jl:242
  [7] _commit_line(s::Any, data::Any, c::Any)
    @ OhMyREPL.Prompt ~/.julia/packages/OhMyREPL/h1QCu/src/repl.jl:297
  [8] (::OhMyREPL.Prompt.var"#22#49")(s::Any, data::Any, c::Any)
    @ OhMyREPL.Prompt ~/.julia/packages/OhMyREPL/h1QCu/src/repl.jl:135
  [9] #invokelatest#2
    @ ./essentials.jl:819 [inlined]
 [10] invokelatest
    @ ./essentials.jl:816 [inlined]
 [11] (::REPL.LineEdit.var"#27#28"{OhMyREPL.Prompt.var"#22#49", String})(s::Any, p::Any)
    @ REPL.LineEdit ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/REPL/src/LineEdit.jl:1603
 [12] prompt!(term::REPL.Terminals.TextTerminal, prompt::REPL.LineEdit.ModalInterface, s::REPL.LineEdit.MIState)
    @ REPL.LineEdit ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/REPL/src/LineEdit.jl:2740
 [13] run_interface(terminal::REPL.Terminals.TextTerminal, m::REPL.LineEdit.ModalInterface, s::REPL.LineEdit.MIState)
    @ REPL.LineEdit ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/REPL/src/LineEdit.jl:2642
 [14] run_frontend(repl::REPL.LineEditREPL, backend::REPL.REPLBackendRef)
    @ REPL ~/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/share/julia/stdlib/v1.9/REPL/src/REPL.jl:1300
 [15] (::REPL.var"#62#68"{REPL.LineEditREPL, REPL.REPLBackendRef})()
    @ REPL ./task.jl:514
ERROR: fatal: error thrown and no exception handler available.
MethodError(f=Base.:(+), args=(:limit, true), world=0x00000000000082d2)
jl_method_error_bare at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2076
jl_method_error at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2094
jl_lookup_generic_ at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2921 [inlined]
ijl_apply_generic at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2936
jl_apply at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/julia.h:1880 [inlined]
do_call at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:126
eval_value at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:226
eval_stmt_value at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:177 [inlined]
eval_body at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:610
jl_fptr_interpret_call at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:698
Pair at REPL[2]:1
_jl_invoke at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2758 [inlined]
ijl_apply_generic at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2940
jl_apply at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/julia.h:1880 [inlined]
do_call at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:126
eval_value at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:226
eval_stmt_value at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:177 [inlined]
eval_body at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:610
jl_fptr_interpret_call at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:698
display_error at client.jl:111
_jl_invoke at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2758 [inlined]
ijl_apply_generic at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2940
jl_apply at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/julia.h:1880 [inlined]
do_call at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:126
eval_value at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:226
eval_stmt_value at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:177 [inlined]
eval_body at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:610
jl_fptr_interpret_call at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/interpreter.c:698
display_error at client.jl:114
_jl_invoke at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2758 [inlined]
ijl_apply_generic at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2940
jl_apply at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/julia.h:1880 [inlined]
jl_f__call_latest at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/builtins.c:774
#invokelatest#2 at ./essentials.jl:819 [inlined]
invokelatest at ./essentials.jl:816 [inlined]
_start at ./client.jl:524
jfptr__start_40034.clone_1 at /home/felix/.julia/juliaup/julia-1.9.3+0.x64.linux.gnu/lib/julia/sys.so (unknown line)
_jl_invoke at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2758 [inlined]
ijl_apply_generic at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/gf.c:2940
jl_apply at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/julia.h:1880 [inlined]
true_main at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/jlapi.c:573
jl_repl_entrypoint at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/src/jlapi.c:717
main at /cache/build/default-amdci5-5/julialang/julia-release-1-dot-9/cli/loader_exe.c:59
unknown function (ip: 0x7f2fd4c27ccf)
__libc_start_main at /usr/lib/libc.so.6 (unknown line)
unknown function (ip: 0x4010b8)

If written to a file, it works sometimes, but unreliably.

I stumbled upon this on one of my first days of using Julia before realizing that probably, overloading => is not the best idea (much better to use the unicode double arrow instead). Maybe this should not even be possible, but maybe it could do something more helpful than crash :)
@KristofferC
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KristofferC commented Sep 11, 2023 •
edited
Loading

Dup of #25744 (or #37783).

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@KristofferC @bagohart