use_self - add test case of rust-lang#4734

tnielens · Apr 29, 2020 · 77c4a1f · 77c4a1f
1 parent 38d81f3
commit 77c4a1f
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diff --git a/tests/ui/use_self.fixed b/tests/ui/use_self.fixed
@@ -422,3 +422,18 @@ mod lint_at_impl_item_level {
         }
     }
 }
+
+mod issue4734 {
+    #[repr(C, packed)]
+    pub struct X {
+        pub x: u32,
+    }
+
+    impl From<X> for u32 {
+        fn from(c: X) -> Self {
+            unsafe {
+                core::mem::transmute(c)
+            }
+        }
+    }
+}
diff --git a/tests/ui/use_self.rs b/tests/ui/use_self.rs
@@ -422,3 +422,18 @@ mod lint_at_impl_item_level {
         }
     }
 }
+
+mod issue4734 {
+    #[repr(C, packed)]
+    pub struct X {
+        pub x: u32,
+    }
+
+    impl From<X> for u32 {
+        fn from(c: X) -> Self {
+            unsafe {
+                core::mem::transmute(c)
+            }
+        }
+    }
+}