misc refactoring

examples/diy_hints.rs

@@ -33,16 +33,16 @@ impl Hint for CommandHint {
 }
 
 impl CommandHint {
-    fn new(text: &str, complete_up_to: &str) -> CommandHint {
+    fn new(text: &str, complete_up_to: &str) -> Self {
         assert!(text.starts_with(complete_up_to));
-        CommandHint {
+        Self {
             display: text.into(),
             complete_up_to: complete_up_to.len(),
         }
     }
 
-    fn suffix(&self, strip_chars: usize) -> CommandHint {
-        CommandHint {
+    fn suffix(&self, strip_chars: usize) -> Self {
+        Self {
             display: self.display[strip_chars..].to_owned(),
             complete_up_to: self.complete_up_to.saturating_sub(strip_chars),
         }

src/binding.rs

@@ -107,15 +107,15 @@ impl KeyEvent {
 impl TrieKey for Event {
     fn encode_bytes(&self) -> Vec<u8> {
         match self {
-            Event::Any => ANY.to_be_bytes().to_vec(),
-            Event::KeySeq(keys) => {
+            Self::Any => ANY.to_be_bytes().to_vec(),
+            Self::KeySeq(keys) => {
                 let mut dst = Vec::with_capacity(keys.len() * 4);
                 for key in keys {
                     dst.extend_from_slice(&key.encode().to_be_bytes());
                 }
                 dst
             }
-            Event::Mouse() => MOUSE.to_be_bytes().to_vec(),
+            Self::Mouse() => MOUSE.to_be_bytes().to_vec(),
         }
     }
 }
@@ -132,8 +132,8 @@ pub enum EventHandler {
 }
 
 impl From<Cmd> for EventHandler {
-    fn from(c: Cmd) -> EventHandler {
-        EventHandler::Simple(c)
+    fn from(c: Cmd) -> Self {
+        Self::Simple(c)
     }
 }
 
@@ -147,7 +147,7 @@ pub struct EventContext<'r> {
 
 impl<'r> EventContext<'r> {
     pub(crate) fn new(is: &InputState, wrt: &'r dyn Refresher) -> Self {
-        EventContext {
+        Self {
             mode: is.mode,
             input_mode: is.input_mode,
             wrt,

src/completion.rs

@@ -375,7 +375,7 @@ fn filename_complete(
         dir_path.to_path_buf()
     };
 
-    let mut entries: Vec<Pair> = Vec::new();
+    let mut entries: Vec<Pair> = vec![];
 
     // if dir doesn't exist, then don't offer any completions
     if !dir.exists() {

src/config.rs

@@ -248,12 +248,12 @@ pub enum BellStyle {
 impl Default for BellStyle {
     #[cfg(any(windows, target_arch = "wasm32"))]
     fn default() -> Self {
-        BellStyle::None
+        Self::None
     }
 
     #[cfg(unix)]
     fn default() -> Self {
-        BellStyle::Audible
+        Self::Audible
     }
 }
 

src/edit.rs

@@ -51,9 +51,9 @@ impl<'out, 'prompt, H: Helper> State<'out, 'prompt, H> {
         prompt: &'prompt str,
         helper: Option<&'out H>,
         ctx: Context<'out>,
-    ) -> State<'out, 'prompt, H> {
+    ) -> Self {
         let prompt_size = out.calculate_position(prompt, Position::default());
-        State {
+        Self {
             out,
             prompt,
             prompt_size,

src/error.rs

@@ -37,37 +37,37 @@ pub enum ReadlineError {
 impl fmt::Display for ReadlineError {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match *self {
-            ReadlineError::Io(ref err) => err.fmt(f),
-            ReadlineError::Eof => write!(f, "EOF"),
-            ReadlineError::Interrupted => write!(f, "Interrupted"),
+            Self::Io(ref err) => err.fmt(f),
+            Self::Eof => write!(f, "EOF"),
+            Self::Interrupted => write!(f, "Interrupted"),
             #[cfg(unix)]
-            ReadlineError::Errno(ref err) => err.fmt(f),
-            ReadlineError::WindowResized => write!(f, "WindowResized"),
+            Self::Errno(ref err) => err.fmt(f),
+            Self::WindowResized => write!(f, "WindowResized"),
             #[cfg(windows)]
-            ReadlineError::Decode(ref err) => err.fmt(f),
+            Self::Decode(ref err) => err.fmt(f),
             #[cfg(windows)]
-            ReadlineError::SystemError(ref err) => err.fmt(f),
+            Self::SystemError(ref err) => err.fmt(f),
             #[cfg(feature = "with-sqlite-history")]
-            ReadlineError::SQLiteError(ref err) => err.fmt(f),
+            Self::SQLiteError(ref err) => err.fmt(f),
         }
     }
 }
 
 impl Error for ReadlineError {
     fn source(&self) -> Option<&(dyn Error + 'static)> {
         match *self {
-            ReadlineError::Io(ref err) => Some(err),
-            ReadlineError::Eof => None,
-            ReadlineError::Interrupted => None,
+            Self::Io(ref err) => Some(err),
+            Self::Eof => None,
+            Self::Interrupted => None,
             #[cfg(unix)]
-            ReadlineError::Errno(ref err) => Some(err),
-            ReadlineError::WindowResized => None,
+            Self::Errno(ref err) => Some(err),
+            Self::WindowResized => None,
             #[cfg(windows)]
-            ReadlineError::Decode(ref err) => Some(err),
+            Self::Decode(ref err) => Some(err),
             #[cfg(windows)]
-            ReadlineError::SystemError(_) => None,
+            Self::SystemError(_) => None,
             #[cfg(feature = "with-sqlite-history")]
-            ReadlineError::SQLiteError(ref err) => Some(err),
+            Self::SQLiteError(ref err) => Some(err),
         }
     }
 }

src/keymap.rs

@@ -133,77 +133,77 @@ impl Cmd {
     pub const fn should_reset_kill_ring(&self) -> bool {
         #[allow(clippy::match_same_arms)]
         match *self {
-            Cmd::Kill(Movement::BackwardChar(_) | Movement::ForwardChar(_)) => true,
-            Cmd::ClearScreen
-            | Cmd::Kill(_)
-            | Cmd::Replace(..)
-            | Cmd::Noop
-            | Cmd::Suspend
-            | Cmd::Yank(..)
-            | Cmd::YankPop => false,
+            Self::Kill(Movement::BackwardChar(_) | Movement::ForwardChar(_)) => true,
+            Self::ClearScreen
+            | Self::Kill(_)
+            | Self::Replace(..)
+            | Self::Noop
+            | Self::Suspend
+            | Self::Yank(..)
+            | Self::YankPop => false,
             _ => true,
         }
     }
 
     const fn is_repeatable_change(&self) -> bool {
         matches!(
             *self,
-            Cmd::Dedent(..)
-                | Cmd::Indent(..)
-                | Cmd::Insert(..)
-                | Cmd::Kill(_)
-                | Cmd::ReplaceChar(..)
-                | Cmd::Replace(..)
-                | Cmd::SelfInsert(..)
-                | Cmd::ViYankTo(_)
-                | Cmd::Yank(..) // Cmd::TransposeChars | TODO Validate
+            Self::Dedent(..)
+                | Self::Indent(..)
+                | Self::Insert(..)
+                | Self::Kill(_)
+                | Self::ReplaceChar(..)
+                | Self::Replace(..)
+                | Self::SelfInsert(..)
+                | Self::ViYankTo(_)
+                | Self::Yank(..) // Cmd::TransposeChars | TODO Validate
         )
     }
 
     const fn is_repeatable(&self) -> bool {
         match *self {
-            Cmd::Move(_) => true,
+            Self::Move(_) => true,
             _ => self.is_repeatable_change(),
         }
     }
 
     // Replay this command with a possible different `RepeatCount`.
     fn redo(&self, new: Option<RepeatCount>, wrt: &dyn Refresher) -> Self {
         match *self {
-            Cmd::Dedent(ref mvt) => Cmd::Dedent(mvt.redo(new)),
-            Cmd::Indent(ref mvt) => Cmd::Indent(mvt.redo(new)),
-            Cmd::Insert(previous, ref text) => {
-                Cmd::Insert(repeat_count(previous, new), text.clone())
+            Self::Dedent(ref mvt) => Self::Dedent(mvt.redo(new)),
+            Self::Indent(ref mvt) => Self::Indent(mvt.redo(new)),
+            Self::Insert(previous, ref text) => {
+                Self::Insert(repeat_count(previous, new), text.clone())
             }
-            Cmd::Kill(ref mvt) => Cmd::Kill(mvt.redo(new)),
-            Cmd::Move(ref mvt) => Cmd::Move(mvt.redo(new)),
-            Cmd::ReplaceChar(previous, c) => Cmd::ReplaceChar(repeat_count(previous, new), c),
-            Cmd::Replace(ref mvt, ref text) => {
+            Self::Kill(ref mvt) => Self::Kill(mvt.redo(new)),
+            Self::Move(ref mvt) => Self::Move(mvt.redo(new)),
+            Self::ReplaceChar(previous, c) => Self::ReplaceChar(repeat_count(previous, new), c),
+            Self::Replace(ref mvt, ref text) => {
                 if text.is_none() {
                     let last_insert = wrt.last_insert();
                     if let Movement::ForwardChar(0) = mvt {
-                        Cmd::Replace(
+                        Self::Replace(
                             Movement::ForwardChar(last_insert.as_ref().map_or(0, String::len)),
                             last_insert,
                         )
                     } else {
-                        Cmd::Replace(mvt.redo(new), last_insert)
+                        Self::Replace(mvt.redo(new), last_insert)
                     }
                 } else {
-                    Cmd::Replace(mvt.redo(new), text.clone())
+                    Self::Replace(mvt.redo(new), text.clone())
                 }
             }
-            Cmd::SelfInsert(previous, c) => {
+            Self::SelfInsert(previous, c) => {
                 // consecutive char inserts are repeatable not only the last one...
                 if let Some(text) = wrt.last_insert() {
-                    Cmd::Insert(repeat_count(previous, new), text)
+                    Self::Insert(repeat_count(previous, new), text)
                 } else {
-                    Cmd::SelfInsert(repeat_count(previous, new), c)
+                    Self::SelfInsert(repeat_count(previous, new), c)
                 }
             }
             // Cmd::TransposeChars => Cmd::TransposeChars,
-            Cmd::ViYankTo(ref mvt) => Cmd::ViYankTo(mvt.redo(new)),
-            Cmd::Yank(previous, anchor) => Cmd::Yank(repeat_count(previous, new), anchor),
+            Self::ViYankTo(ref mvt) => Self::ViYankTo(mvt.redo(new)),
+            Self::Yank(previous, anchor) => Self::Yank(repeat_count(previous, new), anchor),
             _ => unreachable!(),
         }
     }
@@ -263,10 +263,10 @@ pub enum CharSearch {
 impl CharSearch {
     const fn opposite(self) -> Self {
         match self {
-            CharSearch::Forward(c) => CharSearch::Backward(c),
-            CharSearch::ForwardBefore(c) => CharSearch::BackwardAfter(c),
-            CharSearch::Backward(c) => CharSearch::Forward(c),
-            CharSearch::BackwardAfter(c) => CharSearch::ForwardBefore(c),
+            Self::Forward(c) => Self::Backward(c),
+            Self::ForwardBefore(c) => Self::BackwardAfter(c),
+            Self::Backward(c) => Self::Forward(c),
+            Self::BackwardAfter(c) => Self::ForwardBefore(c),
         }
     }
 }
@@ -309,26 +309,26 @@ impl Movement {
     // Replay this movement with a possible different `RepeatCount`.
     const fn redo(&self, new: Option<RepeatCount>) -> Self {
         match *self {
-            Movement::WholeLine => Movement::WholeLine,
-            Movement::BeginningOfLine => Movement::BeginningOfLine,
-            Movement::ViFirstPrint => Movement::ViFirstPrint,
-            Movement::EndOfLine => Movement::EndOfLine,
-            Movement::BackwardWord(previous, word) => {
-                Movement::BackwardWord(repeat_count(previous, new), word)
+            Self::WholeLine => Self::WholeLine,
+            Self::BeginningOfLine => Self::BeginningOfLine,
+            Self::ViFirstPrint => Self::ViFirstPrint,
+            Self::EndOfLine => Self::EndOfLine,
+            Self::BackwardWord(previous, word) => {
+                Self::BackwardWord(repeat_count(previous, new), word)
             }
-            Movement::ForwardWord(previous, at, word) => {
-                Movement::ForwardWord(repeat_count(previous, new), at, word)
+            Self::ForwardWord(previous, at, word) => {
+                Self::ForwardWord(repeat_count(previous, new), at, word)
             }
-            Movement::ViCharSearch(previous, char_search) => {
-                Movement::ViCharSearch(repeat_count(previous, new), char_search)
+            Self::ViCharSearch(previous, char_search) => {
+                Self::ViCharSearch(repeat_count(previous, new), char_search)
             }
-            Movement::BackwardChar(previous) => Movement::BackwardChar(repeat_count(previous, new)),
-            Movement::ForwardChar(previous) => Movement::ForwardChar(repeat_count(previous, new)),
-            Movement::LineUp(previous) => Movement::LineUp(repeat_count(previous, new)),
-            Movement::LineDown(previous) => Movement::LineDown(repeat_count(previous, new)),
-            Movement::WholeBuffer => Movement::WholeBuffer,
-            Movement::BeginningOfBuffer => Movement::BeginningOfBuffer,
-            Movement::EndOfBuffer => Movement::EndOfBuffer,
+            Self::BackwardChar(previous) => Self::BackwardChar(repeat_count(previous, new)),
+            Self::ForwardChar(previous) => Self::ForwardChar(repeat_count(previous, new)),
+            Self::LineUp(previous) => Self::LineUp(repeat_count(previous, new)),
+            Self::LineDown(previous) => Self::LineDown(repeat_count(previous, new)),
+            Self::WholeBuffer => Self::WholeBuffer,
+            Self::BeginningOfBuffer => Self::BeginningOfBuffer,
+            Self::EndOfBuffer => Self::EndOfBuffer,
         }
     }
 }
@@ -1209,14 +1209,14 @@ enum Event {
    KeySeq([KeyEvent; 1]),
 }
 impl From<KeyEvent> for Event {
-    fn from(k: KeyEvent) -> Event {
-        Event::KeySeq([k])
+    fn from(k: KeyEvent) -> Self {
+        Self::KeySeq([k])
     }
 }
 pub struct Bindings {}
 impl Bindings {
-    pub fn new() -> Bindings {
-        Bindings {}
+    pub fn new() -> Self {
+        Self {}
     }
 }
     }

src/lib.rs

@@ -563,7 +563,7 @@ impl<'h> Context<'h> {
     /// Constructor. Visible for testing.
     #[must_use]
     pub fn new(history: &'h dyn History) -> Self {
-        Context {
+        Self {
             history,
             history_index: history.len(),
         }

src/line_buffer.rs

@@ -160,11 +160,7 @@ impl LineBuffer {
         let max = self.buf.capacity();
         if self.must_truncate(buf.len()) {
             self.insert_str(0, &buf[..max], cl);
-            if pos > max {
-                self.pos = max;
-            } else {
-                self.pos = pos;
-            }
+            self.pos = max.min(pos);
         } else {
             self.insert_str(0, buf, cl);
             self.pos = pos;

src/tty/test.rs

@@ -189,7 +189,7 @@ impl Term for DummyTerminal {
         _enable_signals: bool,
     ) -> Result<DummyTerminal> {
         Ok(DummyTerminal {
-            keys: Vec::new(),
+            keys: vec![],
             cursor: 0,
             color_mode,
             bell_style,

src/tty/windows.rs

@@ -665,7 +665,7 @@ impl Term for Console {
         bell_style: BellStyle,
         _enable_bracketed_paste: bool,
         _enable_signals: bool,
-    ) -> Result<Console> {
+    ) -> Result<Self> {
         let (conin, conout, close_on_drop) = if behavior == Behavior::PreferTerm {
             if let (Ok(conin), Ok(conout)) = (
                 OpenOptions::new().read(true).write(true).open("CONIN$"),
@@ -706,7 +706,7 @@ impl Term for Console {
             Err(_) => false,
         };
 
-        Ok(Console {
+        Ok(Self {
             conin_isatty,
             conin: conin.unwrap_or(ptr::null_mut()),
             conout_isatty,
@@ -904,7 +904,7 @@ impl super::ExternalPrinter for ExternalPrinter {
     fn print(&mut self, msg: String) -> Result<()> {
         // write directly to stdout/stderr while not in raw mode
         if !self.raw_mode.load(Ordering::SeqCst) {
-            let mut utf16 = Vec::new();
+            let mut utf16 = vec![];
             write_to_console(self.conout, msg.as_str(), &mut utf16)
         } else {
             self.sender