Panic in IdeMenu::create_value_string

[samuelallan72]

Platform Linux (Ubuntu)
Terminal software Alacritty

A panic is observed when attempting to complete a long directory name using ide completion menu.

Steps to reproduce

1. make a very long set of nested directories (so the full path is ~300 characters long)
2. make some files in the final nested directory so there is something to complete using the completion menu
3. configure ide_completion_menu in nushell
4. enter something like cd longdir/longdir/longdir/ then hit tab to open the ide_completion_menu
5. reedline panics, abruptly cancelling the current command line,dropping you into a new prompt line.

Traceback:

                               Error:   × Main thread panicked.
  ├─▶ at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/str/mod.rs:666:21
  ╰─▶ byte index 240 is out of bounds of `anoeuhnaoehunatehountaehounaoehuneohunsauhnah...`
         0: 0x5a437e9adc44 - rust_begin_unwind
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panicking.rs:647
         1: 0x5a437b4dc7c5 - core::panicking::panic_fmt::ha6effc2775a0749c
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/panicking.rs:72
         2: 0x5a437e9e4621 - core::str::slice_error_fail_rt::hae2b0a3e014351e1
         3: 0x5a437b4dd0d7 - core::str::slice_error_fail::he2ff12236fb0c056
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/str/mod.rs:91
         4: 0x5a437ce369a1 - core::str::<impl str>::split_at::h81de194d99ab07fb
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/str/mod.rs:666
         5: 0x5a437ce6b170 -
      reedline::menu::ide_menu::IdeMenu::create_value_string::h813b3b0d2258abdc
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/menu/ide_menu.rs:518
         6: 0x5a437ce70126 - <reedline::menu::ide_menu::IdeMenu as
      reedline::menu::Menu>::menu_string::{{closure}}::hcca6888784b61807
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/menu/ide_menu.rs:865
         7: 0x5a437ce281a8 - core::iter::adapters::map::map_fold::
      {{closure}}::ha6d0c74022d43ba6
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/iter/adapters/map.rs:89
         8: 0x5a437cdc20b5 - <core::iter::adapters::enumerate::Enumerate<I>
      as core::iter::traits::iterator::Iterator>::fold::enumerate::
      {{closure}}::hd9cda5be10aa6676
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/iter/adapters/enumerate.rs:107
         9: 0x5a437ce2b6b0 - <core::iter::adapters::take::Take<I> as
      core::iter::adapters::take::SpecTake>::spec_fold::hc63d5ccffe302f0f
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/iter/adapters/take.rs:307
        10: 0x5a437ce20c07 - <core::iter::adapters::take::Take<I> as
      core::iter::traits::iterator::Iterator>::fold::hb90d07da7b566570
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/iter/adapters/take.rs:110
        11: 0x5a437cdc1aec - <core::iter::adapters::enumerate::Enumerate<I> as
      core::iter::traits::iterator::Iterator>::fold::h94b5772058644f73
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/iter/adapters/enumerate.rs:113
        12: 0x5a437ce22bb0 - <core::iter::adapters::map::Map<I,F> as
      core::iter::traits::iterator::Iterator>::fold::h450f2811313e0723
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/iter/adapters/map.rs:129
        13: 0x5a437ce26b66 -
      core::iter::traits::iterator::Iterator::for_each::he96e174075427981
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/iter/traits/iterator.rs:858
        14: 0x5a437cda20b1 - alloc::vec::Vec<T,A>::extend_trusted::ha7ac793a510ea1f5
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/alloc/src/vec/mod.rs:2962
        15: 0x5a437cdaaf0b - <alloc::vec::Vec<T,A> as
      alloc::vec::spec_extend::SpecExtend<T,I>>::spec_extend::h96a12434310fcb4f
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/alloc/src/vec/spec_extend.rs:26
        16: 0x5a437cd9dd46 - <alloc::vec::Vec<T> as
      alloc::vec::spec_from_iter_nested::SpecFromIterNested<T,I>>::from_iter::h46a2a11d0a6515
      ce
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/alloc/src/vec/spec_from_iter_nested.rs:62
        17: 0x5a437cdab26e - <alloc::vec::Vec<T> as
      alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter::hb6af4c2d51c49fef
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/alloc/src/vec/spec_from_iter.rs:33
        18: 0x5a437cdaac67 - <alloc::vec::Vec<T> as
      core::iter::traits::collect::FromIterator<T>>::from_iter::hb4e9732b892f811c
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/alloc/src/vec/mod.rs:2836
        19: 0x5a437ce2672e - core::iter::traits::iterator::Iterator::collect::he13b36f9720b6fbf
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/iter/traits/iterator.rs:2054
        20: 0x5a437ce6df21 - <reedline::menu::ide_menu::IdeMenu as
      reedline::menu::Menu>::menu_string::h4ebb240f89bd4850
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/menu/ide_menu.rs:855
        21: 0x5a437ce51bdf - <reedline::menu::ReedlineMenu as
      reedline::menu::Menu>::menu_string::ha6e8b1ad62154375
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/menu/mod.rs:457
        22: 0x5a437ce59612 -
      reedline::painting::painter::Painter::print_menu::hee4f0b578856f140
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/painting/painter.rs:307
        23: 0x5a437ce5a14b -
      reedline::painting::painter::Painter::print_small_buffer::h416fd091bf2fca8a
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/painting/painter.rs:359
        24: 0x5a437ce5880f -
      reedline::painting::painter::Painter::repaint_buffer::hf3fac28380e128ea
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/painting/painter.rs:234
        25: 0x5a437cdeb79d - reedline::engine::Reedline::buffer_paint::h4feb09b9f0ba21a6
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/engine.rs:1803
        26: 0x5a437cde820b - reedline::engine::Reedline::repaint::h3c937814ee4c5aa5
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/engine.rs:1505
        27: 0x5a437cde16c9 - reedline::engine::Reedline::read_line_helper::hca4a4e7a9f56d1e0
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/engine.rs:802
        28: 0x5a437cde09d0 - reedline::engine::Reedline::read_line::hb4875dc9b10f36aa
                      at /home/ubuntu/.cargo/git/checkouts/reedline-e42026a78d91c510/480059a/src/engine.rs:646
        29: 0x5a437cc94492 - nu_cli::repl::loop_iteration::ha973a13cebb9a432
                      at /home/ubuntu/proj/other/nushell/crates/nu-cli/src/repl.rs:423
        30: 0x5a437cc29112 - nu_cli::repl::evaluate_repl::{{closure}}::h7f3aa7c21bc67c63
                      at /home/ubuntu/proj/other/nushell/crates/nu-cli/src/repl.rs:170
        31: 0x5a437ccdf68d - <core::panic::unwind_safe::AssertUnwindSafe<F> as
      core::ops::function::FnOnce<()>>::call_once::h86a0c8469438db73
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/panic/unwind_safe.rs:272
        32: 0x5a437cc2809f - std::panicking::try::do_call::h31b3e1362eac501b
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panicking.rs:554
        33: 0x5a437cc2817b - __rust_try
        34: 0x5a437cc27f9e - std::panicking::try::he7cb97b635bbb52b
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panicking.rs:518
        35: 0x5a437cc23e5e - std::panic::catch_unwind::h0f6a74fa891a7770
                      at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panic.rs:142
        36: 0x5a437cc8e3d3 - nu_cli::repl::evaluate_repl::h3edcdc9173f5212e
                      at /home/ubuntu/proj/other/nushell/crates/nu-cli/src/repl.rs:169
        37: 0x5a437b4f62be - nu::run::run_repl::hf85fc1cf3966412f
                      at /home/ubuntu/proj/other/nushell/src/run.rs:204
        38: 0x5a437b4ebf3d - nu::main::hb1c880516be63ecf
                      at /home/ubuntu/proj/other/nushell/src/main.rs:420
        39: 0x5a437b5125cb - core::ops::function::FnOnce::call_once::hc1388be915146734

[ysthakur]

Thanks for reporting this issue and providing all those details. nushell/nushell#13208 over in Nushell is related