lang-item:Add LangItem::Kind::RECEIVER

Add and implement a lang item (receiver) in source code. gcc/rust/ChangeLog: * util/rust-lang-item.cc: Add receiver to map. * util/rust-lang-item.h: Define LangItem::Kind::RECEIVER. gcc/testsuite/ChangeLog: * rust/compile/issue-2954.rs: New test. Signed-off-by: lishin <[email protected]>
Rust-GCC · Jan 20, 2025 · 4854e29 · 4854e29
1 parent aacecba
commit 4854e29
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diff --git 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
@@ -61,6 +61,7 @@ class LangItem
 
     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
@@ -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 {}
+
+
-Original file line number
+Diff line change
@@ Expand Up / @@ -61,6 +61,7 @@ class LangItem @@
         DEREF,
         DEREF_MUT,
+        RECEIVER,
         // https://github.com/rust-lang/rust/blob/master/library/core/src/ops/index.rs
         INDEX,
@@ Expand Down @@