Handle `async` keyword for regular implementations

Fixes #2788

gcc/rust/ChangeLog:

	* parse/rust-parse-impl.h (Parser::parse_inherent_impl_item):
	Added switch-case for ASYNC token.

gcc/testsuite/ChangeLog:

	* rust/compile/issue-2788.rs: New test.

Signed-off-by: Kushal Pal <kushalpal109@gmail.com>

diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h
index 54885221e18d125943540a76275836af08e308d4..bb00460bd324d0f5a88e1d72fd5b5809efc16f15 100644 (file)
--- a/gcc/rust/parse/rust-parse-impl.h
+++ b/gcc/rust/parse/rust-parse-impl.h
@@ -5600,6 +5600,7 @@ Parser<ManagedTokenSource>::parse_inherent_impl_item ()
            return nullptr;
          }
       }
+    case ASYNC:
     case EXTERN_KW:
     case UNSAFE:
     case FN_KW:

diff --git a/gcc/testsuite/rust/compile/issue-2788.rs b/gcc/testsuite/rust/compile/issue-2788.rs
new file mode 100644 (file)
index 0000000..b3828fc
--- /dev/null
+++ b/gcc/testsuite/rust/compile/issue-2788.rs
@@ -0,0 +1,10 @@
+// { dg-additional-options "-frust-compile-until=lowering" }
+struct Foo {
+    arg_1: u32,
+    arg_2: i32,
+}
+
+impl Foo {
+    async fn asynchronous_function_1(&self) {}
+    async fn asynchronous_function_2() {}
+}