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-rw-r--r--gcc/rust/util/rust-lang-item.cc1
-rw-r--r--gcc/rust/util/rust-lang-item.h1
-rw-r--r--gcc/testsuite/rust/compile/issue-2954.rs17
3 files changed, 19 insertions, 0 deletions
diff --git a/gcc/rust/util/rust-lang-item.cc b/gcc/rust/util/rust-lang-item.cc
index 674b189..e6bcc85 100644
--- a/gcc/rust/util/rust-lang-item.cc
+++ b/gcc/rust/util/rust-lang-item.cc
@@ -46,6 +46,7 @@ const BiMap<std::string, LangItem::Kind> Rust::LangItem::lang_items = {{
{"shr_assign", Kind::SHR_ASSIGN},
{"deref", Kind::DEREF},
{"deref_mut", Kind::DEREF_MUT},
+ {"receiver", Kind::RECEIVER},
{"index", Kind::INDEX},
{"index_mut", Kind::INDEX_MUT},
{"RangeFull", Kind::RANGE_FULL},
diff --git a/gcc/rust/util/rust-lang-item.h b/gcc/rust/util/rust-lang-item.h
index f2e9d70..3b3d86e 100644
--- a/gcc/rust/util/rust-lang-item.h
+++ b/gcc/rust/util/rust-lang-item.h
@@ -61,6 +61,7 @@ public:
DEREF,
DEREF_MUT,
+ RECEIVER,
// https://github.com/rust-lang/rust/blob/master/library/core/src/ops/index.rs
INDEX,
diff --git a/gcc/testsuite/rust/compile/issue-2954.rs b/gcc/testsuite/rust/compile/issue-2954.rs
new file mode 100644
index 0000000..52f7c91
--- /dev/null
+++ b/gcc/testsuite/rust/compile/issue-2954.rs
@@ -0,0 +1,17 @@
+#[lang = "sized"]
+trait Sized {}
+
+#[lang = "receiver"]
+#[unstable(feature = "receiver_trait", issue = "none")]
+// #[doc(hidden)]
+pub trait Receiver {
+ // Empty.
+}
+
+#[unstable(feature = "receiver_trait", issue = "none")]
+impl<T: ?Sized> Receiver for &T {}
+
+#[unstable(feature = "receiver_trait", issue = "none")]
+impl<T: ?Sized> Receiver for &mut T {}
+
+