Fix clippy warnings

3 files changed, 8 insertions, 7 deletions

diff --git a/mlua_derive/src/chunk.rs b/mlua_derive/src/chunk.rs
index 9ff61a9..ee9b822 100644
--- a/mlua_derive/src/chunk.rs
+++ b/mlua_derive/src/chunk.rs
@@ -76,11 +76,12 @@ impl Chunk {
                 .map(|lc| (lc.line, lc.column))
                 .unwrap_or_else(|| (line, col));
 
+            #[allow(clippy::comparison_chain)]
             if line > prev_line {
-                source.push_str("\n");
+                source.push('\n');
             } else if line == prev_line {
                 for _ in 0..col.saturating_sub(prev_col) {
-                    source.push_str(" ");
+                    source.push(' ');
                 }
             }
             source.push_str(&t.to_string());
diff --git a/mlua_derive/src/lib.rs b/mlua_derive/src/lib.rs
index b735b6f..a1e70d6 100644
--- a/mlua_derive/src/lib.rs
+++ b/mlua_derive/src/lib.rs
@@ -14,7 +14,7 @@ pub fn lua_module(attr: TokenStream, item: TokenStream) -> TokenStream {
     let args = parse_macro_input!(attr as AttributeArgs);
     let item = parse_macro_input!(item as ItemFn);
 
-    if args.len() > 0 {
+    if !args.is_empty() {
         let err = Error::new(Span::call_site(), "the number of arguments must be zero")
             .to_compile_error();
         return err.into();
diff --git a/mlua_derive/src/token.rs b/mlua_derive/src/token.rs
index 24182d4..0173118 100644
--- a/mlua_derive/src/token.rs
+++ b/mlua_derive/src/token.rs
@@ -38,7 +38,7 @@ impl Pos {
 }
 
 fn span_pos(span: &Span) -> (Pos, Pos) {
-    let span2: Span2 = span.clone().into();
+    let span2: Span2 = (*span).into();
     let start = span2.start();
     let end = span2.end();
 
@@ -175,7 +175,7 @@ impl Tokens {
     pub(crate) fn retokenize(tt: TokenStream) -> Tokens {
         Tokens(
             tt.into_iter()
-                .map(|tt| Tokens::from(tt))
+                .map(Tokens::from)
                 .flatten()
                 .peekable()
                 .batching(|iter| {
@@ -217,8 +217,8 @@ impl From<TokenTree> for Tokens {
 
                 vec![Token::new_delim(b, tt.clone(), true)]
                     .into_iter()
-                    .chain(g.stream().into_iter().map(|tt| Tokens::from(tt)).flatten())
-                    .chain(vec![Token::new_delim(e, tt.clone(), false)])
+                    .chain(g.stream().into_iter().map(Tokens::from).flatten())
+                    .chain(vec![Token::new_delim(e, tt, false)])
                     .collect()
             }
             _ => vec![Token::new(tt)],