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Diffstat (limited to 'crates/mbe/src/expander/transcriber.rs')
-rw-r--r--crates/mbe/src/expander/transcriber.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/crates/mbe/src/expander/transcriber.rs b/crates/mbe/src/expander/transcriber.rs
index 68e9fad232..3aacfd120c 100644
--- a/crates/mbe/src/expander/transcriber.rs
+++ b/crates/mbe/src/expander/transcriber.rs
@@ -390,7 +390,7 @@ fn expand_var(
let mut span = id;
marker(&mut span);
let wrap_in_parens = !matches!(sub.flat_tokens(), [tt::TokenTree::Leaf(_)])
- && sub.try_into_subtree().map_or(true, |it| {
+ && sub.try_into_subtree().is_none_or(|it| {
it.top_subtree().delimiter.kind == tt::DelimiterKind::Invisible
});
if wrap_in_parens {