Implement Error for InjectorShutdown

Cargo.lock

@@ -1467,6 +1467,7 @@ dependencies = [
  "smallvec",
  "tempfile",
  "termini",
+ "thiserror",
  "tokio",
  "tokio-stream",
  "toml",

helix-term/Cargo.toml

@@ -56,6 +56,7 @@ ignore = "0.4"
 pulldown-cmark = { version = "0.11", default-features = false }
 # file type detection
 content_inspector = "0.2.4"
+thiserror = "1.0"
 
 # opening URLs
 open = "5.2.0"

helix-term/src/ui/picker.rs

@@ -18,6 +18,7 @@ use futures_util::future::BoxFuture;
 use helix_event::AsyncHook;
 use nucleo::pattern::CaseMatching;
 use nucleo::{Config, Nucleo, Utf32String};
+use thiserror::Error;
 use tokio::sync::mpsc::Sender;
 use tui::{
     buffer::Buffer as Surface,
@@ -170,6 +171,8 @@ impl<I, D> Clone for Injector<I, D> {
     }
 }
 
+#[derive(Error, Debug)]
+#[error("picker has been shut down")]
 pub struct InjectorShutdown;
 
 impl<T, D> Injector<T, D> {