diff options
| -rw-r--r-- | clippy_lints/src/methods/mod.rs | 2 | ||||
| -rw-r--r-- | clippy_lints/src/unnecessary_wraps.rs | 2 | ||||
| -rw-r--r-- | tests/ui/unnecessary_wraps.rs | 7 |
3 files changed, 10 insertions, 1 deletions
diff --git a/clippy_lints/src/methods/mod.rs b/clippy_lints/src/methods/mod.rs index 50dd760432d..004b8416fc1 100644 --- a/clippy_lints/src/methods/mod.rs +++ b/clippy_lints/src/methods/mod.rs @@ -3878,7 +3878,7 @@ fn is_bool(ty: &hir::Ty<'_>) -> bool { } // Returns `true` if `expr` contains a return expression -fn contains_return(expr: &hir::Expr<'_>) -> bool { +pub(crate) fn contains_return(expr: &hir::Expr<'_>) -> bool { struct RetCallFinder { found: bool, } diff --git a/clippy_lints/src/unnecessary_wraps.rs b/clippy_lints/src/unnecessary_wraps.rs index 25ecc7a82f1..7b550c702cd 100644 --- a/clippy_lints/src/unnecessary_wraps.rs +++ b/clippy_lints/src/unnecessary_wraps.rs @@ -1,3 +1,4 @@ +use crate::methods::contains_return; use crate::utils::{ in_macro, is_type_diagnostic_item, match_qpath, paths, return_ty, snippet, span_lint_and_then, visitors::find_all_ret_expressions, @@ -95,6 +96,7 @@ impl<'tcx> LateLintPass<'tcx> for UnnecessaryWraps { if let ExprKind::Path(ref qpath) = func.kind; if match_qpath(qpath, path); if args.len() == 1; + if !contains_return(&args[0]); then { suggs.push((ret_expr.span, snippet(cx, args[0].span.source_callsite(), "..").to_string())); true diff --git a/tests/ui/unnecessary_wraps.rs b/tests/ui/unnecessary_wraps.rs index a53dec8f91a..a4570098d71 100644 --- a/tests/ui/unnecessary_wraps.rs +++ b/tests/ui/unnecessary_wraps.rs @@ -109,6 +109,13 @@ impl B for A { } } +fn issue_6384(s: &str) -> Option<&str> { + Some(match s { + "a" => "A", + _ => return None, + }) +} + fn main() { // method calls are not linted func1(true, true); |