Change from _ to None

JohnTitor · JohnTitor · commit b39e9e2d07a7 · 2019-01-15T18:02:22.000+09:00
diff --git a/src/librustc_lint/builtin.rs b/src/librustc_lint/builtin.rs
@@ -280,7 +280,7 @@ impl EarlyLintPass for UnsafeCode {
     }
 
     fn check_trait_item(&mut self, cx: &EarlyContext, item: &ast::TraitItem) {
-        if let ast::TraitItemKind::Method(ref sig, _) = item.node {
+        if let ast::TraitItemKind::Method(ref sig, None) = item.node {
             if sig.header.unsafety == ast::Unsafety::Unsafe {
                 self.report_unsafe(cx, item.span, "declaration of an `unsafe` method")
             }

Original file line number	Diff line number	Diff line change
`@@ -280,7 +280,7 @@ impl EarlyLintPass for UnsafeCode {`
`280`	`280`	`}`
`281`	`281`
`282`	`282`	`fn check_trait_item(&mut self, cx: &EarlyContext, item: &ast::TraitItem) {`
`283`		`- if let ast::TraitItemKind::Method(ref sig, _) = item.node {`
	`283`	`+ if let ast::TraitItemKind::Method(ref sig, None) = item.node {`
`284`	`284`	`if sig.header.unsafety == ast::Unsafety::Unsafe {`
`285`	`285`	self.report_unsafe(cx, item.span, "declaration of an `unsafe` method")
`286`	`286`	`}`