some low hanging clippy::perf fixes

2021-08-31 00:54:48 +02:00
parent 76d18cfb89
commit 7f2df9ad65
6 changed files with 11 additions and 10 deletions
--- a/compiler/rustc_target/src/spec/mod.rs
+++ b/compiler/rustc_target/src/spec/mod.rs
@@ -664,7 +664,7 @@ impl ToJson for SanitizerSet {
        self.into_iter()
            .map(|v| Some(v.as_str()?.to_json()))
            .collect::<Option<Vec<_>>>()
-            .unwrap_or(Vec::new())
+            .unwrap_or_default()
            .to_json()
    }
 }