From 23b5b1e25aca1dbed87fef18cc72b16852ba40a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bla=C5=BE=20Hrastnik?= <blaz@mxxn.io>
Date: Tue, 21 Jun 2022 05:47:48 +0900
Subject: [PATCH] Remove a couple more unwraps

---
 helix-term/src/commands.rs       |  9 ++++++---
 helix-term/src/commands/lsp.rs   | 11 +++++++++--
 helix-term/src/commands/typed.rs |  6 ++++--
 helix-term/src/ui/mod.rs         |  3 +--
 helix-term/src/ui/prompt.rs      |  2 +-
 5 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs
index 9239b49ff..a07b51091 100644
--- a/helix-term/src/commands.rs
+++ b/helix-term/src/commands.rs
@@ -1683,8 +1683,7 @@ fn search_next_or_prev_impl(cx: &mut Context, movement: Movement, direction: Dir
     let scrolloff = config.scrolloff;
     let (view, doc) = current!(cx.editor);
     let registers = &cx.editor.registers;
-    if let Some(query) = registers.read('/') {
-        let query = query.last().unwrap();
+    if let Some(query) = registers.read('/').and_then(|query| query.last()) {
         let contents = doc.text().slice(..).to_string();
         let search_config = &config.search;
         let case_insensitive = if search_config.smart_case {
@@ -2124,7 +2123,11 @@ fn append_mode(cx: &mut Context) {
     // Make sure there's room at the end of the document if the last
     // selection butts up against it.
     let end = text.len_chars();
-    let last_range = doc.selection(view.id).iter().last().unwrap();
+    let last_range = doc
+        .selection(view.id)
+        .iter()
+        .last()
+        .expect("selection should always have at least one range");
     if !last_range.is_empty() && last_range.head == end {
         let transaction = Transaction::change(
             doc.text(),
diff --git a/helix-term/src/commands/lsp.rs b/helix-term/src/commands/lsp.rs
index b8c5e5d1f..6f75fb497 100644
--- a/helix-term/src/commands/lsp.rs
+++ b/helix-term/src/commands/lsp.rs
@@ -61,7 +61,14 @@ fn jump_to_location(
             return;
         }
     };
-    let _id = editor.open(&path, action).expect("editor.open failed");
+    match editor.open(&path, action) {
+        Ok(_) => (),
+        Err(err) => {
+            let err = format!("failed to open path: {:?}: {:?}", location.uri, err);
+            editor.set_error(err);
+            return;
+        }
+    }
     let (view, doc) = current!(editor);
     let definition_pos = location.range.start;
     // TODO: convert inside server
@@ -491,7 +498,7 @@ fn goto_impl(
     locations: Vec<lsp::Location>,
     offset_encoding: OffsetEncoding,
 ) {
-    let cwdir = std::env::current_dir().expect("couldn't determine current directory");
+    let cwdir = std::env::current_dir().unwrap_or_default();
 
     match locations.as_slice() {
         [location] => {
diff --git a/helix-term/src/commands/typed.rs b/helix-term/src/commands/typed.rs
index 19c6a5dc1..70f5fa9fe 100644
--- a/helix-term/src/commands/typed.rs
+++ b/helix-term/src/commands/typed.rs
@@ -1,3 +1,5 @@
+use std::ops::Deref;
+
 use super::*;
 
 use helix_view::editor::{Action, ConfigEvent};
@@ -961,7 +963,7 @@ fn get_option(
     let key = &args[0].to_lowercase();
     let key_error = || anyhow::anyhow!("Unknown key `{}`", key);
 
-    let config = serde_json::to_value(&cx.editor.config().clone()).unwrap();
+    let config = serde_json::json!(cx.editor.config().deref());
     let pointer = format!("/{}", key.replace('.', "/"));
     let value = config.pointer(&pointer).ok_or_else(key_error)?;
 
@@ -984,7 +986,7 @@ fn set_option(
     let key_error = || anyhow::anyhow!("Unknown key `{}`", key);
     let field_error = |_| anyhow::anyhow!("Could not parse field `{}`", arg);
 
-    let mut config = serde_json::to_value(&cx.editor.config().clone()).unwrap();
+    let mut config = serde_json::json!(&cx.editor.config().deref());
     let pointer = format!("/{}", key.replace('.', "/"));
     let value = config.pointer_mut(&pointer).ok_or_else(key_error)?;
 
diff --git a/helix-term/src/ui/mod.rs b/helix-term/src/ui/mod.rs
index 76ddaf89e..47a68a18f 100644
--- a/helix-term/src/ui/mod.rs
+++ b/helix-term/src/ui/mod.rs
@@ -263,8 +263,7 @@ pub mod completers {
 
     pub fn setting(_editor: &Editor, input: &str) -> Vec<Completion> {
         static KEYS: Lazy<Vec<String>> = Lazy::new(|| {
-            serde_json::to_value(Config::default())
-                .unwrap()
+            serde_json::json!(Config::default())
                 .as_object()
                 .unwrap()
                 .keys()
diff --git a/helix-term/src/ui/prompt.rs b/helix-term/src/ui/prompt.rs
index 7744a1614..beba8ce9a 100644
--- a/helix-term/src/ui/prompt.rs
+++ b/helix-term/src/ui/prompt.rs
@@ -443,7 +443,7 @@ impl Prompt {
         let input: Cow<str> = if self.line.is_empty() {
             // latest value in the register list
             self.history_register
-                .and_then(|reg| cx.editor.registers.first(reg).cloned()) // TODO: can we avoid cloning?
+                .and_then(|reg| cx.editor.registers.first(reg))
                 .map(|entry| entry.into())
                 .unwrap_or_else(|| Cow::from(""))
         } else {