cleaned up all compiler warnings

src/libsh/sys.rs

@@ -3,35 +3,6 @@ use std::sync::LazyLock;
 use termios::{LocalFlags, Termios};
 
 use crate::prelude::*;
-///
-/// The previous state of the terminal options.
-///
-/// This variable stores the terminal settings at the start of the program and
-/// restores them when the program exits. It is initialized exactly once at the
-/// start of the program and accessed exactly once at the end of the program. It
-/// will not be mutated or accessed under any other circumstances.
-///
-/// This ended up being necessary because wrapping Termios in a thread-safe way
-/// was unreasonably tricky.
-///
-/// The possible states of this variable are:
-/// - `None`: The terminal options have not been set yet (before
-///   initialization).
-/// - `Some(None)`: There were no terminal options to save (i.e., no terminal
-///   input detected).
-/// - `Some(Some(Termios))`: The terminal options (as `Termios`) have been
-///   saved.
-///
-/// **Important:** This static variable is mutable and accessed via unsafe code.
-/// It is only safe to use because:
-/// - It is set once during program startup and accessed once during program
-///   exit.
-/// - It is not mutated or accessed after the initial setup and final read.
-///
-/// **Caution:** Future changes to this code should respect these constraints to
-/// ensure safety. Modifying or accessing this variable outside the defined
-/// lifecycle could lead to undefined behavior.
-pub(crate) static mut SAVED_TERMIOS: Option<Option<Termios>> = None;
 
 pub static TTY_FILENO: LazyLock<RawFd> = LazyLock::new(|| {
   open("/dev/tty", OFlag::O_RDWR, Mode::empty()).expect("Failed to open /dev/tty")

src/parse/lex.rs

@@ -15,7 +15,6 @@ use crate::{
     error::{ShErr, ShErrKind, ShResult},
     utils::CharDequeUtils,
   },
-  prelude::*,
 };
 
 pub const KEYWORDS: [&str; 16] = [

src/readline/highlight.rs

@@ -441,3 +441,9 @@ impl Highlighter {
       .replace(markers::OPERATOR, "\x1b[35m");
   }
 }
+
+impl Default for Highlighter {
+	fn default() -> Self {
+		Self::new()
+	}
+}

src/readline/history.rs

@@ -9,14 +9,11 @@ use std::{
   time::{Duration, SystemTime, UNIX_EPOCH},
 };
 
-use crate::prelude::*;
 use crate::{
   libsh::error::{ShErr, ShErrKind, ShResult},
   readline::linebuf::LineBuf,
 };
 
-use super::vicmd::Direction; // surprisingly useful
-
 #[derive(Default, Clone, Copy, Debug)]
 pub enum SearchKind {
   Fuzzy,
@@ -215,7 +212,7 @@ pub struct History {
   search_mask: Vec<HistEntry>,
   no_matches: bool,
   pub cursor: usize,
-  search_direction: Direction,
+  //search_direction: Direction,
   ignore_dups: bool,
   max_size: Option<u32>,
 }
@@ -242,7 +239,7 @@ impl History {
       search_mask,
       no_matches: false,
       cursor,
-      search_direction: Direction::Backward,
+      //search_direction: Direction::Backward,
       ignore_dups,
       max_size: Some(max_hist as u32),
     })

src/readline/term.rs

@@ -857,18 +857,15 @@ pub struct TermWriter {
   out: RawFd,
   pub t_cols: Col, // terminal width
   buffer: String,
-  w_calc: Box<dyn WidthCalculator>,
 }
 
 impl TermWriter {
   pub fn new(out: RawFd) -> Self {
-    let w_calc = width_calculator();
     let (t_cols, _) = get_win_size(out);
     Self {
       out,
       t_cols,
       buffer: String::new(),
-      w_calc,
     }
   }
   pub fn get_cursor_movement(&self, old: Pos, new: Pos) -> ShResult<String> {

src/readline/vimode.rs

@@ -1,7 +1,6 @@
 use std::iter::Peekable;
 use std::str::Chars;
 
-use nix::NixPath;
 use unicode_segmentation::UnicodeSegmentation;
 
 use super::keys::{KeyCode as K, KeyEvent as E, ModKeys as M};
@@ -994,7 +993,7 @@ impl ViNormal {
       }
     };
 
-    chars.peek().is_some();
+		let _ = chars; // suppresses unused warnings, creates an error if we decide to use chars later
 
     let verb_ref = verb.as_ref().map(|v| &v.1);
     let motion_ref = motion.as_ref().map(|m| &m.1);
@@ -1659,7 +1658,7 @@ impl ViVisual {
       }
     };
 
-    chars.peek().is_some();
+		let _ = chars; // suppresses unused warnings, creates an error if we decide to use chars later
 
     let verb_ref = verb.as_ref().map(|v| &v.1);
     let motion_ref = motion.as_ref().map(|m| &m.1);