Merge commit 'd0cf3481a84e3aa68c2f185c460e282af36ebc42' into clippyup

[rust.git] / src / tools / clippy / tests / ui / unnecessary_to_owned.rs

diff --git a/src/tools/clippy/tests/ui/unnecessary_to_owned.rs b/src/tools/clippy/tests/ui/unnecessary_to_owned.rs
index 60b2e718f5d499aefb887461737c0ab0ea42d68e..15fb7ee83e3d100a50cfa13dfd54cf12afcd7cd0 100644 (file)
--- a/src/tools/clippy/tests/ui/unnecessary_to_owned.rs
+++ b/src/tools/clippy/tests/ui/unnecessary_to_owned.rs
@@ -212,3 +212,51 @@ fn get_file_path(_file_type: &FileType) -> Result<std::path::PathBuf, std::io::E
 }
 
 fn require_string(_: &String) {}
+
+// https://github.com/rust-lang/rust-clippy/issues/8507
+mod issue_8507 {
+    #![allow(dead_code)]
+
+    struct Opaque<P>(P);
+
+    pub trait Abstracted {}
+
+    impl<P> Abstracted for Opaque<P> {}
+
+    fn build<P>(p: P) -> Opaque<P>
+    where
+        P: AsRef<str>,
+    {
+        Opaque(p)
+    }
+
+    // Should not lint.
+    fn test_str(s: &str) -> Box<dyn Abstracted> {
+        Box::new(build(s.to_string()))
+    }
+
+    // Should not lint.
+    fn test_x(x: super::X) -> Box<dyn Abstracted> {
+        Box::new(build(x))
+    }
+
+    #[derive(Clone, Copy)]
+    struct Y(&'static str);
+
+    impl AsRef<str> for Y {
+        fn as_ref(&self) -> &str {
+            self.0
+        }
+    }
+
+    impl ToString for Y {
+        fn to_string(&self) -> String {
+            self.0.to_string()
+        }
+    }
+
+    // Should lint because Y is copy.
+    fn test_y(y: Y) -> Box<dyn Abstracted> {
+        Box::new(build(y.to_string()))
+    }
+}