Clippy fixes (#581)

library/src/compute/calc.rs

@@ -71,7 +71,7 @@ cast_from_value! {
     v: i64 => Self(Value::Int(v.abs())),
     v: f64 => Self(Value::Float(v.abs())),
     v: Length => Self(Value::Length(v.try_abs()
-        .ok_or_else(|| "cannot take absolute value of this length")?)),
+        .ok_or("cannot take absolute value of this length")?)),
     v: Angle => Self(Value::Angle(v.abs())),
     v: Ratio => Self(Value::Ratio(v.abs())),
     v: Fr => Self(Value::Fraction(v.abs())),

library/src/layout/mod.rs

@@ -238,7 +238,7 @@ impl<'a, 'v, 't> Builder<'a, 'v, 't> {
         Self {
             vt,
             scratch,
-            doc: top.then(|| DocBuilder::default()),
+            doc: top.then(DocBuilder::default),
             flow: FlowBuilder::default(),
             par: ParBuilder::default(),
             list: ListBuilder::default(),
@@ -295,7 +295,7 @@ impl<'a, 'v, 't> Builder<'a, 'v, 't> {
             .to::<PagebreakElem>()
             .map_or(false, |pagebreak| !pagebreak.weak(styles));
 
-        self.interrupt_page(keep.then(|| styles))?;
+        self.interrupt_page(keep.then_some(styles))?;
 
         if let Some(doc) = &mut self.doc {
             if doc.accept(content, styles) {

library/src/layout/par.rs

@@ -135,6 +135,7 @@ impl ParElem {
         expand: bool,
     ) -> SourceResult<Fragment> {
         #[comemo::memoize]
+        #[allow(clippy::too_many_arguments)]
         fn cached(
             par: &ParElem,
             world: Tracked<dyn World>,
@@ -760,7 +761,7 @@ fn shared_get<T: PartialEq>(
         .iter()
         .filter_map(|child| child.to_styled())
         .all(|(_, local)| getter(styles.chain(local)) == value)
-        .then(|| value)
+        .then_some(value)
 }
 
 /// Find suitable linebreaks.

library/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::wildcard_in_or_patterns)]
 //! Typst's standard library.
 
 pub mod compute;

library/src/math/row.rs

@@ -9,12 +9,12 @@ pub struct MathRow(Vec<MathFragment>);
 
 impl MathRow {
     pub fn new(fragments: Vec<MathFragment>) -> Self {
-        let mut iter = fragments.into_iter().peekable();
+        let iter = fragments.into_iter().peekable();
         let mut last: Option<usize> = None;
         let mut space: Option<MathFragment> = None;
         let mut resolved: Vec<MathFragment> = vec![];
 
-        while let Some(mut fragment) = iter.next() {
+        for mut fragment in iter {
             match fragment {
                 // Keep space only if supported by spaced fragments.
                 MathFragment::Space(_) => {
@@ -180,9 +180,9 @@ impl MathRow {
             }
         }
 
-        let mut fragments = self.0.into_iter().peekable();
+        let fragments = self.0.into_iter().peekable();
         let mut i = 0;
-        while let Some(fragment) = fragments.next() {
+        for fragment in fragments {
             if matches!(fragment, MathFragment::Align) {
                 if let Some(&point) = points.get(i) {
                     x = point;

library/src/meta/bibliography.rs

@@ -489,7 +489,7 @@ fn create(
                         &mut *citation_style,
                         &[Citation {
                             entry,
-                            supplement: supplement.is_some().then(|| SUPPLEMENT),
+                            supplement: supplement.is_some().then_some(SUPPLEMENT),
                         }],
                     )
                     .display;

library/src/meta/numbering.rs

@@ -149,7 +149,7 @@ impl NumberingPattern {
     /// Apply the pattern to the given number.
     pub fn apply(&self, numbers: &[usize]) -> EcoString {
         let mut fmt = EcoString::new();
-        let mut numbers = numbers.into_iter();
+        let mut numbers = numbers.iter();
 
         for (i, ((prefix, kind, case), &n)) in
             self.pieces.iter().zip(&mut numbers).enumerate()

library/src/text/deco.rs

@@ -315,11 +315,13 @@ pub(super) fn decorate(
 
         // Only do the costly segments intersection test if the line
         // intersects the bounding box.
-        if bbox.map_or(false, |bbox| {
+        let intersect = bbox.map_or(false, |bbox| {
             let y_min = -text.font.to_em(bbox.y_max).at(text.size);
             let y_max = -text.font.to_em(bbox.y_min).at(text.size);
             offset >= y_min && offset <= y_max
-        }) {
+        });
+
+        if intersect {
             // Find all intersections of segments with the line.
             intersections.extend(
                 path.segments()

library/src/text/raw.rs

@@ -285,7 +285,7 @@ fn to_syn(RgbaColor { r, g, b, a }: RgbaColor) -> synt::Color {
 
 /// The syntect syntax definitions.
 static SYNTAXES: Lazy<syntect::parsing::SyntaxSet> =
-    Lazy::new(|| syntect::parsing::SyntaxSet::load_defaults_nonewlines());
+    Lazy::new(syntect::parsing::SyntaxSet::load_defaults_nonewlines);
 
 /// The default theme used for syntax highlighting.
 pub static THEME: Lazy<synt::Theme> = Lazy::new(|| synt::Theme {

library/src/text/shaping.rs

@@ -379,7 +379,7 @@ impl<'a> ShapedText<'a> {
         // RTL needs offset one because the left side of the range should be
         // exclusive and the right side inclusive, contrary to the normal
         // behaviour of ranges.
-        self.glyphs[idx].safe_to_break.then(|| idx + (!ltr) as usize)
+        self.glyphs[idx].safe_to_break.then_some(idx + usize::from(!ltr))
     }
 }
 

library/src/visualize/shape.rs

@@ -477,6 +477,7 @@ impl Layout for CircleElem {
 }
 
 /// Layout a shape.
+#[allow(clippy::too_many_arguments)]
 fn layout(
     vt: &mut Vt,
     styles: StyleChain,

src/eval/args.rs

@@ -69,7 +69,7 @@ impl Args {
         let vec = self.items.to_vec();
         let (left, right) = vec.split_at(n);
         self.items = right.into();
-        return Ok(left.into());
+        Ok(left.into())
     }
 
     /// Consume and cast the first positional argument.

src/eval/mod.rs

@@ -1203,7 +1203,7 @@ impl ast::Pattern {
                                             return None;
                                         };
                                         if let Some(ident) = ident {
-                                            vm.define(ident.clone(), sink.clone());
+                                            vm.define(ident.clone(), sink);
                                         }
                                         i += sink_size as i64;
                                         Some(())
@@ -1217,7 +1217,7 @@ impl ast::Pattern {
                                 }
                             }
                         }
-                        if i < value.len() as i64 {
+                        if i < value.len() {
                             bail!(self.span(), "too many elements to destructure");
                         }
                     }

src/model/content.rs

@@ -386,7 +386,7 @@ impl Content {
         for attr in &self.attrs {
             match attr {
                 Attr::Child(child) => child.query_into(introspector, selector, results),
-                Attr::Value(value) => walk_value(introspector, &value, selector, results),
+                Attr::Value(value) => walk_value(introspector, value, selector, results),
                 _ => {}
             }
         }

src/model/styles.rs

@@ -628,13 +628,13 @@ impl<'a> StyleChain<'a> {
     ) -> T::Output {
         fn next<T: Fold>(
             mut values: impl Iterator<Item = T>,
-            styles: StyleChain,
+            _styles: StyleChain,
             default: &impl Fn() -> T::Output,
         ) -> T::Output {
             values
                 .next()
-                .map(|value| value.fold(next(values, styles, default)))
-                .unwrap_or_else(|| default())
+                .map(|value| value.fold(next(values, _styles, default)))
+                .unwrap_or_else(default)
         }
         next(self.properties::<T>(func, name, inherent), self, &default)
     }
@@ -663,7 +663,7 @@ impl<'a> StyleChain<'a> {
             values
                 .next()
                 .map(|value| value.resolve(styles).fold(next(values, styles, default)))
-                .unwrap_or_else(|| default())
+                .unwrap_or_else(default)
         }
         next(self.properties::<T>(func, name, inherent), self, &default)
     }