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[src/trunk]: src/usr.bin/make make(1): merge functions for suffix handling



details:   https://anonhg.NetBSD.org/src/rev/2bd1f9462bcf
branches:  trunk
changeset: 957246:2bd1f9462bcf
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sun Nov 22 10:11:23 2020 +0000

description:
make(1): merge functions for suffix handling

The names of the functions AddSources and AddLevel were not as precise
and guiding as possible.  Merging them into a single function makes the
code indented a little more, but on the other hand provides a function
with an easy to grasp purpose.

diffstat:

 usr.bin/make/suff.c |  53 ++++++++++++++++++++++-------------------------------
 1 files changed, 22 insertions(+), 31 deletions(-)

diffs (98 lines):

diff -r 6c881fdb4831 -r 2bd1f9462bcf usr.bin/make/suff.c
--- a/usr.bin/make/suff.c       Sun Nov 22 09:56:01 2020 +0000
+++ b/usr.bin/make/suff.c       Sun Nov 22 10:11:23 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: suff.c,v 1.285 2020/11/22 09:56:01 rillig Exp $        */
+/*     $NetBSD: suff.c,v 1.286 2020/11/22 10:11:23 rillig Exp $        */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -114,7 +114,7 @@
 #include "dir.h"
 
 /*     "@(#)suff.c     8.4 (Berkeley) 3/21/94" */
-MAKE_RCSID("$NetBSD: suff.c,v 1.285 2020/11/22 09:56:01 rillig Exp $");
+MAKE_RCSID("$NetBSD: suff.c,v 1.286 2020/11/22 10:11:23 rillig Exp $");
 
 #define SUFF_DEBUG0(text) DEBUG0(SUFF, text)
 #define SUFF_DEBUG1(fmt, arg1) DEBUG1(SUFF, fmt, arg1)
@@ -906,32 +906,26 @@
 #endif
 }
 
-/*
- * Add a new candidate to the list, formed from the candidate's prefix and
- * the suffix.
- */
-/* XXX: reorder parameters */
+/* Add all candidates to the list that can be formed by applying a suffix to
+ * the candidate. */
 static void
-AddSources(Suffix *suff, CandidateList *list, Candidate *targ)
+CandidateList_AddCandidatesFor(CandidateList *list, Candidate *cand)
 {
-    if ((suff->flags & SUFF_NULL) && suff->name[0] != '\0') {
-       /*
-        * If the suffix has been marked as the NULL suffix, also create a
-        * candidate for a file with no suffix attached.
-        */
-       CandidateList_Add(list, bmake_strdup(targ->pref), targ, suff, "1");
-    }
-    CandidateList_Add(list, str_concat2(targ->pref, suff->name), targ, suff, "2");
-}
+    SuffixListNode *ln;
+    for (ln = cand->suff->children->first; ln != NULL; ln = ln->next) {
+       Suffix *suff = ln->datum;
 
-/* Add all the children of targ to the list. */
-static void
-AddLevel(CandidateList *srcs, Candidate *targ)
-{
-    CandidateListNode *ln;
-    for (ln = targ->suff->children->first; ln != NULL; ln = ln->next) {
-       Suffix *childSuff = ln->datum;
-       AddSources(childSuff, srcs, targ);
+       if ((suff->flags & SUFF_NULL) && suff->name[0] != '\0') {
+           /*
+            * If the suffix has been marked as the NULL suffix, also
+            * create a candidate for a file with no suffix attached.
+            */
+           CandidateList_Add(list, bmake_strdup(cand->pref),
+                      cand, suff, "1");
+       }
+
+       CandidateList_Add(list, str_concat2(cand->pref, suff->name),
+                         cand, suff, "2");
     }
 }
 
@@ -1023,7 +1017,7 @@
 
        SUFF_DEBUG0("not there\n");
 
-       AddLevel(srcs, src);
+       CandidateList_AddCandidatesFor(srcs, src);
        Lst_Append(slst, src);
     }
 
@@ -1559,10 +1553,7 @@
        pref = bmake_strldup(name, (size_t)(nameLen - suff->nameLen));
        targ = Candidate_New(bmake_strdup(gn->name), pref, suff, NULL, gn);
 
-       /*
-        * Add nodes from which the target can be made
-        */
-       AddLevel(srcs, targ);
+       CandidateList_AddCandidatesFor(srcs, targ);
 
        /*
         * Record the target so we can nuke it
@@ -1592,7 +1583,7 @@
      * don't do this anymore.
      */
     if (Lst_IsEmpty(gn->commands))
-       AddLevel(srcs, targ);
+       CandidateList_AddCandidatesFor(srcs, targ);
     else {
        SUFF_DEBUG0("not ");
     }



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