Imrpove `unwrap_or_else_default`

3 files changed, 9 insertions, 2 deletions

diff --git a/clippy_lints/src/methods/unwrap_or_else_default.rs b/clippy_lints/src/methods/unwrap_or_else_default.rs
index 276467b1dfd..4811048439c 100644
--- a/clippy_lints/src/methods/unwrap_or_else_default.rs
+++ b/clippy_lints/src/methods/unwrap_or_else_default.rs
@@ -2,7 +2,8 @@
 
 use super::UNWRAP_OR_ELSE_DEFAULT;
 use clippy_utils::{
-    diagnostics::span_lint_and_sugg, is_trait_item, source::snippet_with_applicability, ty::is_type_diagnostic_item,
+    diagnostics::span_lint_and_sugg, is_default_equivalent, is_trait_item, source::snippet_with_applicability,
+    ty::is_type_diagnostic_item,
 };
 use rustc_errors::Applicability;
 use rustc_hir as hir;
@@ -24,7 +25,7 @@ pub(super) fn check<'tcx>(
 
     if_chain! {
         if is_option || is_result;
-        if is_trait_item(cx, u_arg, sym::Default);
+        if is_trait_item(cx, u_arg, sym::Default) || is_default_equivalent(cx, u_arg);
         then {
             let mut applicability = Applicability::MachineApplicable;
 
diff --git a/tests/ui/unwrap_or_else_default.fixed b/tests/ui/unwrap_or_else_default.fixed
index 7ac3f426c97..5849dc4cebb 100644
--- a/tests/ui/unwrap_or_else_default.fixed
+++ b/tests/ui/unwrap_or_else_default.fixed
@@ -66,6 +66,9 @@ fn unwrap_or_else_default() {
 
     let with_default_type = Some(1);
     with_default_type.unwrap_or_default();
+
+    let with_default_type: Option<Vec<u64>> = None;
+    with_default_type.unwrap_or_default();
 }
 
 fn main() {}
diff --git a/tests/ui/unwrap_or_else_default.rs b/tests/ui/unwrap_or_else_default.rs
index 82b727a039e..d55664990ae 100644
--- a/tests/ui/unwrap_or_else_default.rs
+++ b/tests/ui/unwrap_or_else_default.rs
@@ -66,6 +66,9 @@ fn unwrap_or_else_default() {
 
     let with_default_type = Some(1);
     with_default_type.unwrap_or_else(u64::default);
+
+    let with_default_type: Option<Vec<u64>> = None;
+    with_default_type.unwrap_or_else(Vec::new);
 }
 
 fn main() {}