Avoid Iterator::last

2022-09-11 17:23:00 +02:00
parent 6f0c4a6c5c
commit 66211d83f9
7 changed files with 11 additions and 15 deletions
--- a/compiler/rustc_session/src/session.rs
+++ b/compiler/rustc_session/src/session.rs
@@ -1309,10 +1309,8 @@ pub fn build_session(
    let warnings_allow = sopts
        .lint_opts
        .iter()
-        .filter(|&&(ref key, _)| *key == "warnings")
-        .map(|&(_, ref level)| *level == lint::Allow)
-        .last()
-        .unwrap_or(false);
+        .rfind(|&&(ref key, _)| *key == "warnings")
+        .map_or(false, |&(_, level)| level == lint::Allow);
    let cap_lints_allow = sopts.lint_cap.map_or(false, |cap| cap == lint::Allow);
    let can_emit_warnings = !(warnings_allow || cap_lints_allow);