crash app when write app in Arabic

[TechComet]

use floem::IntoView;
use floem::views::text;

fn app_view() -> impl IntoView {
    text("السلام عليكم")
}

fn main() {
    floem::launch(app_view)
}

error:

warning: testapp v0.1.0 (/home/igbaria/dev/MyProjects/RustProjects/testapp) ignoring invalid dependency `lapce` which is missing a lib target
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.26s
     Running `target/debug/testapp`
thread 'main' panicked at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/shape.rs:108:17:
begin <= end (10 <= 8) when slicing `السلام`
stack backtrace:
   0: rust_begin_unwind
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/panicking.rs:652:5
   1: core::panicking::panic_fmt
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/panicking.rs:72:14
   2: core::str::slice_error_fail_rt
   3: core::str::slice_error_fail
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/str/mod.rs:89:5
   4: core::str::traits::<impl core::slice::index::SliceIndex<str> for core::ops::range::Range<usize>>::index
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/str/traits.rs:244:21
   5: core::str::traits::<impl core::ops::index::Index<I> for str>::index
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/str/traits.rs:62:9
   6: floem_cosmic_text::shape::shape_fallback
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/shape.rs:108:17
   7: floem_cosmic_text::shape::shape_run
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/shape.rs:220:37
   8: floem_cosmic_text::shape::ShapeWord::new
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/shape.rs:429:32
   9: floem_cosmic_text::shape::ShapeSpan::new
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/shape.rs:497:28
  10: floem_cosmic_text::shape::ShapeLine::new
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/shape.rs:613:24
  11: floem_cosmic_text::buffer_line::TextLayoutLine::shape
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/buffer_line.rs:200:35
  12: floem_cosmic_text::buffer_line::TextLayoutLine::layout
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/buffer_line.rs:222:25
  13: floem_cosmic_text::buffer::TextLayout::shape_until
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/buffer.rs:395:26
  14: floem_cosmic_text::buffer::TextLayout::shape_until_scroll
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/buffer.rs:454:28
  15: floem_cosmic_text::buffer::TextLayout::set_text
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-cosmic-text-0.7.2/src/buffer.rs:585:9
  16: floem::views::label::Label::set_text_layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/views/label.rs:167:9
  17: <floem::views::label::Label as floem::view::View>::layout::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/views/label.rs:393:21
  18: floem::context::LayoutCx::layout_node
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/context.rs:845:25
  19: <floem::views::label::Label as floem::view::View>::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/views/label.rs:388:9
  20: <alloc::boxed::Box<dyn floem::view::View> as floem::view::View>::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:327:9
  21: <alloc::boxed::Box<dyn floem::view::View> as floem::view::View>::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:327:9
  22: floem::view::recursively_layout_view::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:191:24
  23: floem::context::LayoutCx::layout_node
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/context.rs:845:25
  24: floem::view::recursively_layout_view
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:186:5
  25: floem::view::View::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:245:9
  26: <alloc::boxed::Box<dyn floem::view::View> as floem::view::View>::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:327:9
  27: <alloc::boxed::Box<dyn floem::view::View> as floem::view::View>::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:327:9
  28: floem::view::recursively_layout_view::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:191:24
  29: floem::context::LayoutCx::layout_node
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/context.rs:845:25
  30: floem::view::recursively_layout_view
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:186:5
  31: floem::view::View::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:245:9
  32: <alloc::boxed::Box<dyn floem::view::View> as floem::view::View>::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:327:9
  33: <alloc::boxed::Box<dyn floem::view::View> as floem::view::View>::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:327:9
  34: floem::view::recursively_layout_view::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:191:24
  35: floem::context::LayoutCx::layout_node
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/context.rs:845:25
  36: floem::view::recursively_layout_view
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:186:5
  37: floem::view::View::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/view.rs:245:9
  38: floem::context::LayoutCx::layout_view
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/context.rs:854:9
  39: floem::window_handle::WindowHandle::layout
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/window_handle.rs:517:18
  40: floem::window_handle::WindowHandle::process_update_no_paint
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/window_handle.rs:694:17
  41: floem::window_handle::WindowHandle::process_update
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/window_handle.rs:667:12
  42: floem::app_handle::ApplicationHandle::handle_updates_for_all_windows
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/app_handle.rs:392:13
  43: floem::app_handle::ApplicationHandle::idle
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/app_handle.rs:387:9
  44: floem::app::Application::run
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/app.rs:143:9
  45: floem::app::launch
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/1589f5a/src/app.rs:34:5
  46: testapp::main
             at ./src/main.rs:259:5
  47: core::ops::function::FnOnce::call_once
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

Process finished with exit code 101

[dzhou121]

It should be fixed now in latest main.

[TechComet]

thank you it's work now, but it needs more work for text_editor The cursor in the text_editor is not behaving as expected when typing or navigating with the keyboard.

I apologize for not being able to assist at this time, as I'm currently new to Rust development.

[TechComet]

I encountered an error that I couldn't identify the cause of. I was typing randomly in Arabic between English words.

cargo run --color=always --package untitled4 --bin untitled4
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
     Running `target/debug/untitled4`
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thread 'main' panicked at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/visual_line.rs:1744:9:
line: 0, line_index: 1, line_count: 2, vline: RVLine { line: 0, line_index: 1 }, start: 109, end: 101, backwards: false text_len: 111
stack backtrace:
   0: rust_begin_unwind
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/panicking.rs:652:5
   1: core::panicking::panic_fmt
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/panicking.rs:72:14
   2: <floem::views::editor::visual_line::VisualLinesRelative<T> as core::iter::traits::iterator::Iterator>::next
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/visual_line.rs:1744:9
   3: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::next
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/iter/adapters/map.rs:108:9
   4: <core::iter::adapters::take::Take<I> as core::iter::traits::iterator::Iterator>::next
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/iter/adapters/take.rs:41:13
   5: <core::iter::adapters::enumerate::Enumerate<I> as core::iter::traits::iterator::Iterator>::next
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/iter/adapters/enumerate.rs:48:17
   6: floem::views::editor::normal_compute_screen_lines
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/mod.rs:1545:28
   7: floem::views::editor::text::Document::compute_screen_lines
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/text.rs:157:9
   8: floem::views::editor::Editor::compute_screen_lines
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/mod.rs:481:9
   9: floem::views::editor::create_view_effects::{{closure}}::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/mod.rs:1419:36
  10: core::option::Option<T>::map
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/option.rs:1075:29
  11: floem_reactive::signal::signal_update_value
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/reactive/src/signal.rs:407:9
  12: floem_reactive::signal::RwSignal<T>::update
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/reactive/src/signal.rs:57:13
  13: floem::views::editor::create_view_effects::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/mod.rs:1418:9
  14: floem::views::editor::create_view_effects::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/mod.rs:1497:9
  15: <floem_reactive::effect::Effect<T,F> as floem_reactive::effect::EffectTrait>::run
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/reactive/src/effect.rs:235:25
  16: floem_reactive::effect::run_effect::{{closure}}::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/reactive/src/effect.rs:173:13
  17: floem_reactive::scope::with_scope
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/reactive/src/scope.rs:129:18
  18: floem_reactive::effect::run_effect::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/reactive/src/effect.rs:171:9
  19: std::thread::local::LocalKey<T>::try_with
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/thread/local.rs:283:12
  20: std::thread::local::LocalKey<T>::with
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/thread/local.rs:260:9
  21: floem_reactive::effect::run_effect
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/reactive/src/effect.rs:167:5
  22: floem_reactive::signal::Signal::run_effects
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/reactive/src/signal.rs:366:13
  23: floem_reactive::signal::signal_update_value
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/reactive/src/signal.rs:409:5
  24: floem_reactive::signal::RwSignal<T>::try_update
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/reactive/src/signal.rs:68:9
  25: floem::views::editor::text_document::TextDocument::update_cache_rev
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/text_document.rs:109:9
  26: <floem::views::editor::text_document::TextDocument as floem::views::editor::text::Document>::receive_char
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/text_document.rs:226:17
  27: floem::views::editor::Editor::receive_char
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/mod.rs:474:9
  28: floem::views::editor::view::editor_content::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/editor/view.rs:1180:25
  29: floem::views::decorator::Decorators::on_event_stop::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/views/decorator.rs:172:13
  30: <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/alloc/src/boxed.rs:2077:9
  31: floem::context::EventCx::unconditional_view_event::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/context.rs:439:35
  32: <core::slice::iter::Iter<T> as core::iter::traits::iterator::Iterator>::fold
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/slice/iter/macros.rs:230:27
  33: floem::context::EventCx::unconditional_view_event
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/context.rs:438:24
  34: floem::window_handle::WindowHandle::event
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/window_handle.rs:191:34
  35: floem::window_handle::WindowHandle::key_event
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/window_handle.rs:385:13
  36: floem::app_handle::ApplicationHandle::handle_window_event
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/app_handle.rs:185:21
  37: floem::app::Application::run::{{closure}}
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/app.rs:151:21
  38: core::ops::function::impls::<impl core::ops::function::FnMut<A> for &mut F>::call_mut
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/ops/function.rs:294:13
  39: core::ops::function::impls::<impl core::ops::function::FnMut<A> for &mut F>::call_mut
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/ops/function.rs:294:13
  40: floem_winit::platform_impl::platform::wayland::event_loop::EventLoop<T>::single_iteration
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-winit-0.29.4/src/platform_impl/linux/wayland/event_loop/mod.rs:461:13
  41: floem_winit::platform_impl::platform::wayland::event_loop::EventLoop<T>::poll_events_with_timeout
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-winit-0.29.4/src/platform_impl/linux/wayland/event_loop/mod.rs:323:9
  42: floem_winit::platform_impl::platform::wayland::event_loop::EventLoop<T>::pump_events
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-winit-0.29.4/src/platform_impl/linux/wayland/event_loop/mod.rs:237:13
  43: floem_winit::platform_impl::platform::wayland::event_loop::EventLoop<T>::run_on_demand
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-winit-0.29.4/src/platform_impl/linux/wayland/event_loop/mod.rs:201:19
  44: floem_winit::platform_impl::platform::EventLoop<T>::run_on_demand
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-winit-0.29.4/src/platform_impl/linux/mod.rs:821:56
  45: floem_winit::platform_impl::platform::EventLoop<T>::run
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-winit-0.29.4/src/platform_impl/linux/mod.rs:814:9
  46: floem_winit::event_loop::EventLoop<T>::run
             at /home/igbaria/.cargo/registry/src/index.crates.io-6f17d22bba15001f/floem-winit-0.29.4/src/event_loop.rs:249:9
  47: floem::app::Application::run
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/app.rs:144:17
  48: floem::app::launch
             at /home/igbaria/.cargo/git/checkouts/floem-69eea0a757d1e3ee/32c41cb/src/app.rs:34:5
  49: untitled4::main
             at ./src/main.rs:76:5
  50: core::ops::function::FnOnce::call_once
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

Process finished with exit code 101