use all instead of join

kyoto7250 · kyoto7250 · commit d827b834d913 · 2022-06-26T16:11:04.000+09:00
diff --git a/clippy_lints/src/enum_variants.rs b/clippy_lints/src/enum_variants.rs
@@ -214,7 +214,7 @@ fn check_variant(cx: &LateContext<'_>, threshold: u64, def: &EnumDef<'_>, item_n
 
 #[must_use]
 fn have_no_extra_prefix(prefixes: &[&str]) -> bool {
-    prefixes.is_empty() || prefixes.join("") == "_"
+    prefixes.iter().all(|p| p == &"" || p == &"_")
 }
 
 #[must_use]

Original file line number	Diff line number	Diff line change
`@@ -214,7 +214,7 @@ fn check_variant(cx: &LateContext<'_>, threshold: u64, def: &EnumDef<'_>, item_n`
`214`	`214`
`215`	`215`	`#[must_use]`
`216`	`216`	`fn have_no_extra_prefix(prefixes: &[&str]) -> bool {`
`217`		`- prefixes.is_empty() \|\| prefixes.join("") == "_"`
	`217`	`+ prefixes.iter().all(\|p\| p == &"" \|\| p == &"_")`
`218`	`218`	`}`
`219`	`219`
`220`	`220`	`#[must_use]`