[src/trunk]: src/usr.bin/xlint/lint1 lint: remove duplicate code for parsing ...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/feb93b309bd0
branches:  trunk
changeset: 1022216:feb93b309bd0
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sat Jul 10 04:25:47 2021 +0000

description:
lint: remove duplicate code for parsing declarations

No functional change.

diffstat:

 usr.bin/xlint/lint1/cgram.y |  31 ++++++++-----------------------
 1 files changed, 8 insertions(+), 23 deletions(-)

diffs (67 lines):

diff -r c0e6fc2e9978 -r feb93b309bd0 usr.bin/xlint/lint1/cgram.y
--- a/usr.bin/xlint/lint1/cgram.y       Sat Jul 10 03:19:12 2021 +0000
+++ b/usr.bin/xlint/lint1/cgram.y       Sat Jul 10 04:25:47 2021 +0000
@@ -1,5 +1,5 @@
 %{
-/* $NetBSD: cgram.y,v 1.277 2021/07/09 20:51:27 rillig Exp $ */
+/* $NetBSD: cgram.y,v 1.278 2021/07/10 04:25:47 rillig Exp $ */
 
 /*
  * Copyright (c) 1996 Christopher G. Demetriou.  All Rights Reserved.
@@ -35,7 +35,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__RCSID) && !defined(lint)
-__RCSID("$NetBSD: cgram.y,v 1.277 2021/07/09 20:51:27 rillig Exp $");
+__RCSID("$NetBSD: cgram.y,v 1.278 2021/07/10 04:25:47 rillig Exp $");
 #endif
 
 #include <limits.h>
@@ -403,26 +403,7 @@
                        warning(1);
                }
          }
-       | declmods deftyp T_SEMI {
-               if (dcs->d_scl == TYPEDEF) {
-                       /* typedef declares no type name */
-                       warning(72);
-               } else {
-                       /* empty declaration */
-                       warning(2);
-               }
-         }
-       | declmods deftyp notype_init_decls T_SEMI
-       | declaration_specifiers deftyp T_SEMI {
-               if (dcs->d_scl == TYPEDEF) {
-                       /* typedef declares no type name */
-                       warning(72);
-               } else if (!dcs->d_nonempty_decl) {
-                       /* empty declaration */
-                       warning(2);
-               }
-         }
-       | declaration_specifiers deftyp type_init_decls T_SEMI
+       | declaration_noerror
        | error T_SEMI {
                global_clean_up();
          }
@@ -514,6 +495,11 @@
        ;
 
 declaration:                   /* C99 6.7 */
+         declaration_noerror
+       | error T_SEMI
+       ;
+
+declaration_noerror:           /* see C99 6.7 'declaration' */
          declmods deftyp T_SEMI {
                if (dcs->d_scl == TYPEDEF) {
                        /* typedef declares no type name */
@@ -534,7 +520,6 @@
                }
          }
        | declaration_specifiers deftyp type_init_decls T_SEMI
-       | error T_SEMI
        ;
 
 clrtyp: