[macro_metavar_expr_concat] Dogfooding

rust-lang · Aug 1, 2024 · 1356b76 · 1356b76
1 parent 97ac52f
commit 1356b76
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Showing 2 changed files with 3 additions and 8 deletions.
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
@@ -302,6 +302,7 @@
 #![feature(let_chains)]
 #![feature(link_cfg)]
 #![feature(linkage)]
+#![feature(macro_metavar_expr_concat)]
 #![feature(min_exhaustive_patterns)]
 #![feature(min_specialization)]
 #![feature(must_not_suspend)]

diff --git a/library/std/src/sys/pal/unix/weak.rs b/library/std/src/sys/pal/unix/weak.rs
@@ -172,10 +172,7 @@ pub(crate) macro syscall {
                 // (not paths).
                 use libc::*;
 
-                syscall(
-                    concat_idents!(SYS_, $name),
-                    $($arg_name),*
-                ) as $ret
+                syscall(${concat(SYS_, $name)}, $($arg_name),*) as $ret
             }
         }
     )
@@ -189,10 +186,7 @@ pub(crate) macro raw_syscall {
             // (not paths).
             use libc::*;
 
-            syscall(
-                concat_idents!(SYS_, $name),
-                $($arg_name),*
-            ) as $ret
+            syscall(${concat(SYS_, $name)}, $($arg_name),*) as $ret
         }
     )
 }