use const unwrap

Stable since 1.83 (our MSRV)

crates/typst-syntax/src/span.rs

@@ -71,10 +71,7 @@ impl Span {
 
     /// Create a span that does not point into any file.
     pub const fn detached() -> Self {
-        match NonZeroU64::new(Self::DETACHED) {
+        Self(NonZeroU64::new(Self::DETACHED).unwrap())
-            Some(v) => Self(v),
-            None => unreachable!(),
-        }
     }
 
     /// Create a new span from a file id and a number.
@@ -111,11 +108,9 @@ impl Span {
     /// Pack a file ID and the low bits into a span.
     const fn pack(id: FileId, low: u64) -> Self {
         let bits = ((id.into_raw().get() as u64) << Self::FILE_ID_SHIFT) | low;
-        match NonZeroU64::new(bits) {
+
-            Some(v) => Self(v),
+        // The file ID is non-zero.
-            // The file ID is non-zero.
+        Self(NonZeroU64::new(bits).unwrap())
-            None => unreachable!(),
-        }
     }
 
     /// Whether the span is detached.

crates/typst-utils/src/lib.rs

@@ -66,17 +66,11 @@ pub trait NonZeroExt {
 }
 
 impl NonZeroExt for NonZeroUsize {
-    const ONE: Self = match Self::new(1) {
+    const ONE: Self = Self::new(1).unwrap();
-        Some(v) => v,
-        None => unreachable!(),
-    };
 }
 
 impl NonZeroExt for NonZeroU32 {
-    const ONE: Self = match Self::new(1) {
+    const ONE: Self = Self::new(1).unwrap();
-        Some(v) => v,
-        None => unreachable!(),
-    };
 }
 
 /// Extra methods for [`Arc`].

crates/typst-utils/src/pico.rs

@@ -95,10 +95,7 @@ impl PicoStr {
             }
         };
 
-        match NonZeroU64::new(value) {
+        Ok(Self(NonZeroU64::new(value).unwrap()))
-            Some(value) => Ok(Self(value)),
-            None => unreachable!(),
-        }
     }
 
     /// Resolve to a decoded string.