[src/trunk]: src/usr.bin/xlint/lint1 lint: extract check_bit_field_type from ...

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

details:   https://anonhg.NetBSD.org/src/rev/4ac98d027db9
branches:  trunk
changeset: 983093:4ac98d027db9
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sun May 02 21:48:53 2021 +0000

description:
lint: extract check_bit_field_type from declare_bit_field

No functional change.

diffstat:

 usr.bin/xlint/lint1/decl.c |  24 ++++++++++++++++--------
 1 files changed, 16 insertions(+), 8 deletions(-)

diffs (63 lines):

diff -r a0e0a66b6fd1 -r 4ac98d027db9 usr.bin/xlint/lint1/decl.c
--- a/usr.bin/xlint/lint1/decl.c        Sun May 02 21:47:28 2021 +0000
+++ b/usr.bin/xlint/lint1/decl.c        Sun May 02 21:48:53 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: decl.c,v 1.178 2021/04/18 17:36:18 rillig Exp $ */
+/* $NetBSD: decl.c,v 1.179 2021/05/02 21:48:53 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 1.178 2021/04/18 17:36:18 rillig Exp $");
+__RCSID("$NetBSD: decl.c,v 1.179 2021/05/02 21:48:53 rillig Exp $");
 #endif
 
 #include <sys/param.h>
@@ -1094,10 +1094,10 @@
  * implementation-defined type".
  */
 static void
-declare_bit_field(sym_t *dsym, tspec_t *inout_t, type_t **const inout_tp)
+check_bit_field_type(sym_t *dsym,  type_t **const inout_tp, tspec_t *inout_t)
 {
+       type_t *tp = *inout_tp;
        tspec_t t = *inout_t;
-       type_t *tp = *inout_tp;
 
        if (t == CHAR || t == UCHAR || t == SCHAR ||
            t == SHORT || t == USHORT || t == ENUM) {
@@ -1128,9 +1128,20 @@
                        dsym->s_type = tp = dup_type(gettyp(t = INT));
                        if ((tp->t_flen = sz) > size_in_bits(t))
                                tp->t_flen = size_in_bits(t);
+                       *inout_t = t;
+                       *inout_tp = tp;
                }
        }
-
+}
+
+static void
+declare_bit_field(sym_t *dsym, tspec_t *inout_t, type_t **const inout_tp)
+{
+
+       check_bit_field_type(dsym, inout_tp, inout_t);
+
+       type_t *const tp = *inout_tp;
+       tspec_t const t = *inout_t;
        if (tp->t_flen < 0 || tp->t_flen > (ssize_t)size_in_bits(t)) {
                /* illegal bit-field size: %d */
                error(36, tp->t_flen);
@@ -1146,9 +1157,6 @@
                dsym->s_type->t_bitfield = false;
                dsym->s_bitfield = false;
        }
-
-       *inout_t = t;
-       *inout_tp = tp;
 }
 
 /*