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

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

details:   https://anonhg.NetBSD.org/src/rev/46bcdcd06337
branches:  trunk
changeset: 954013:46bcdcd06337
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sat Mar 27 16:37:12 2021 +0000

description:
lint: extract look_up_member from initstack_push_struct_or_union

No functional change.

diffstat:

 usr.bin/xlint/lint1/init.c |  70 ++++++++++++++++++++++++++-------------------
 1 files changed, 40 insertions(+), 30 deletions(-)

diffs (98 lines):

diff -r 52cdb40c4b45 -r 46bcdcd06337 usr.bin/xlint/lint1/init.c
--- a/usr.bin/xlint/lint1/init.c        Sat Mar 27 16:24:21 2021 +0000
+++ b/usr.bin/xlint/lint1/init.c        Sat Mar 27 16:37:12 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: init.c,v 1.137 2021/03/27 16:24:21 rillig Exp $        */
+/*     $NetBSD: init.c,v 1.138 2021/03/27 16:37:12 rillig Exp $        */
 
 /*
  * Copyright (c) 1994, 1995 Jochen Pohl
@@ -37,7 +37,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__RCSID) && !defined(lint)
-__RCSID("$NetBSD: init.c,v 1.137 2021/03/27 16:24:21 rillig Exp $");
+__RCSID("$NetBSD: init.c,v 1.138 2021/03/27 16:37:12 rillig Exp $");
 #endif
 
 #include <stdlib.h>
@@ -798,6 +798,43 @@
            type_name(istk->i_type), istk->i_remaining);
 }
 
+static sym_t *
+look_up_member(initstack_element *istk, int *count)
+{
+       sym_t *m;
+
+       for (m = istk->i_type->t_str->sou_first_member;
+            m != NULL; m = m->s_next) {
+               if (m->s_bitfield && m->s_name == unnamed)
+                       continue;
+               /*
+                * TODO: split into separate functions:
+                *
+                * look_up_array_next
+                * look_up_array_designator
+                * look_up_struct_next
+                * look_up_struct_designator
+                */
+               if (current_designation().head != NULL) {
+                       /* XXX: this log entry looks unnecessarily verbose */
+                       debug_step("have member '%s', want member '%s'",
+                           m->s_name, current_designation().head->name);
+                       if (strcmp(m->s_name,
+                           current_designation().head->name) == 0) {
+                               (*count)++;
+                               break;
+                       } else
+                               continue;
+               }
+               if (++(*count) == 1) {
+                       istk->i_next_member = m;
+                       istk->i_subt = m->s_type;
+               }
+       }
+
+       return m;
+}
+
 /* TODO: document me */
 /* TODO: think of a better name than 'push' */
 static bool
@@ -824,34 +861,7 @@
            type_name(istk->i_type),
            istk->i_seen_named_member ? ", seen named member" : "");
 
-       for (m = istk->i_type->t_str->sou_first_member;
-            m != NULL; m = m->s_next) {
-               if (m->s_bitfield && m->s_name == unnamed)
-                       continue;
-               /*
-                * TODO: split into separate functions:
-                *
-                * look_up_array_next
-                * look_up_array_designator
-                * look_up_struct_next
-                * look_up_struct_designator
-                */
-               if (current_designation().head != NULL) {
-                       /* XXX: this log entry looks unnecessarily verbose */
-                       debug_step("have member '%s', want member '%s'",
-                           m->s_name, current_designation().head->name);
-                       if (strcmp(m->s_name,
-                           current_designation().head->name) == 0) {
-                               cnt++;
-                               break;
-                       } else
-                               continue;
-               }
-               if (++cnt == 1) {
-                       istk->i_next_member = m;
-                       istk->i_subt = m->s_type;
-               }
-       }
+       m = look_up_member(istk, &cnt);
 
        if (current_designation().head != NULL) {
                if (m == NULL) {