[src/trunk]: src/usr.bin/xlint/lint1 lint: use message 232 for unused label i...

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

details:   https://anonhg.NetBSD.org/src/rev/fefeb1640540
branches:  trunk
changeset: 958557:fefeb1640540
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sun Jan 10 13:54:13 2021 +0000

description:
lint: use message 232 for unused label in function

This message had been defined but not used before.

diffstat:

 tests/usr.bin/xlint/lint1/msg_232.c   |  13 ++++++++++---
 tests/usr.bin/xlint/lint1/msg_232.exp |   2 +-
 usr.bin/xlint/lint1/decl.c            |   8 ++++----
 3 files changed, 15 insertions(+), 8 deletions(-)

diffs (56 lines):

diff -r e904fc00cf0c -r fefeb1640540 tests/usr.bin/xlint/lint1/msg_232.c
--- a/tests/usr.bin/xlint/lint1/msg_232.c       Sun Jan 10 13:44:57 2021 +0000
+++ b/tests/usr.bin/xlint/lint1/msg_232.c       Sun Jan 10 13:54:13 2021 +0000
@@ -1,7 +1,14 @@
-/*     $NetBSD: msg_232.c,v 1.1 2021/01/02 10:22:44 rillig Exp $       */
+/*     $NetBSD: msg_232.c,v 1.2 2021/01/10 13:54:13 rillig Exp $       */
 # 3 "msg_232.c"
 
 // Test for message: label %s unused in function %s [232]
 
-TODO: "Add example code that triggers the above message."
-TODO: "Add example code that almost triggers the above message."
+void
+example(void)
+{
+       goto used_label;
+unused_label:
+       return;
+used_label:
+       return;
+}
diff -r e904fc00cf0c -r fefeb1640540 tests/usr.bin/xlint/lint1/msg_232.exp
--- a/tests/usr.bin/xlint/lint1/msg_232.exp     Sun Jan 10 13:44:57 2021 +0000
+++ b/tests/usr.bin/xlint/lint1/msg_232.exp     Sun Jan 10 13:54:13 2021 +0000
@@ -1,1 +1,1 @@
-msg_232.c(6): syntax error ':' [249]
+msg_232.c(10): warning: label unused_label unused in function example [232]
diff -r e904fc00cf0c -r fefeb1640540 usr.bin/xlint/lint1/decl.c
--- a/usr.bin/xlint/lint1/decl.c        Sun Jan 10 13:44:57 2021 +0000
+++ b/usr.bin/xlint/lint1/decl.c        Sun Jan 10 13:54:13 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: decl.c,v 1.114 2021/01/10 00:05:46 rillig Exp $ */
+/* $NetBSD: decl.c,v 1.115 2021/01/10 13:54:13 rillig Exp $ */
 
 /*
  * Copyright (c) 1996 Christopher G. Demetriou.  All Rights Reserved.
@@ -38,7 +38,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__RCSID) && !defined(lint)
-__RCSID("$NetBSD: decl.c,v 1.114 2021/01/10 00:05:46 rillig Exp $");
+__RCSID("$NetBSD: decl.c,v 1.115 2021/01/10 13:54:13 rillig Exp $");
 #endif
 
 #include <sys/param.h>
@@ -3051,8 +3051,8 @@
 
        if (lab->s_set && !lab->s_used) {
                curr_pos = lab->s_set_pos;
-               /* %s unused in function %s */
-               warning(192, lab->s_name, funcsym->s_name);
+               /* label %s unused in function %s */
+               warning(232, lab->s_name, funcsym->s_name);
        } else if (!lab->s_set) {
                curr_pos = lab->s_use_pos;
                /* undefined label %s */