Bump MSRV to 1.83 and Rust in CI to 1.85 (#5946)

2 files changed, 2 insertions, 2 deletions

diff --git a/crates/typst-library/src/text/font/book.rs b/crates/typst-library/src/text/font/book.rs
index 23e27f64..9f8acce8 100644
--- a/crates/typst-library/src/text/font/book.rs
+++ b/crates/typst-library/src/text/font/book.rs
@@ -160,7 +160,7 @@ impl FontBook {
                 current.variant.weight.distance(variant.weight),
             );
 
-            if best_key.map_or(true, |b| key < b) {
+            if best_key.is_none_or(|b| key < b) {
                 best = Some(id);
                 best_key = Some(key);
             }
diff --git a/crates/typst-library/src/text/shift.rs b/crates/typst-library/src/text/shift.rs
index 3eec0758..dbf1be8a 100644
--- a/crates/typst-library/src/text/shift.rs
+++ b/crates/typst-library/src/text/shift.rs
@@ -159,7 +159,7 @@ fn is_shapable(engine: &Engine, text: &str, styles: StyleChain) -> bool {
         {
             let covers = family.covers();
             return text.chars().all(|c| {
-                covers.map_or(true, |cov| cov.is_match(c.encode_utf8(&mut [0; 4])))
+                covers.is_none_or(|cov| cov.is_match(c.encode_utf8(&mut [0; 4])))
                     && font.ttf().glyph_index(c).is_some()
             });
         }