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authorBarton E. Schaefer <schaefer@zsh.org>2017-02-26 12:03:56 -0800
committerBarton E. Schaefer <schaefer@zsh.org>2017-02-26 12:03:56 -0800
commitd00931de5c2b7aa846daf137865dd05ac8d4be8a (patch)
tree754e2d1f13b639b2ea34dd63ccbb6f4f38077e62
parentc7048cd88f508b775b3805199f8fd68efd4279df (diff)
downloadzsh-d00931de5c2b7aa846daf137865dd05ac8d4be8a.tar.gz
zsh-d00931de5c2b7aa846daf137865dd05ac8d4be8a.zip
40650: redo 40508 and 40626 with comments explaining what is actually going on
-rw-r--r--ChangeLog5
-rw-r--r--Src/Modules/parameter.c34
2 files changed, 30 insertions, 9 deletions
diff --git a/ChangeLog b/ChangeLog
index 0f8bc93e8..95a3ccd41 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2017-02-26 Barton E. Schaefer <schaefer@zsh.org>
+
+ * 40650: Src/Modules/parameter.c: redo 40508 and 40626 with
+ comments explaining what is actually going on
+
2017-02-25 Daniel Shahaf <d.s@daniel.shahaf.name>
* 40644: Src/Modules/parameter.c, Test/V06parameter.ztst:
diff --git a/Src/Modules/parameter.c b/Src/Modules/parameter.c
index c251e4f97..10c47d214 100644
--- a/Src/Modules/parameter.c
+++ b/Src/Modules/parameter.c
@@ -167,7 +167,7 @@ unsetpmcommand(Param pm, UNUSED(int exp))
/**/
static void
-setpmcommands(UNUSED(Param pm), HashTable ht)
+setpmcommands(Param pm, HashTable ht)
{
int i;
HashNode hn;
@@ -190,7 +190,15 @@ setpmcommands(UNUSED(Param pm), HashTable ht)
cmdnamtab->addnode(cmdnamtab, ztrdup(hn->nam), &cn->node);
}
- deleteparamtable(ht);
+ /*
+ * On full-array assignment ht is a temporary hash with the default
+ * get/set functions, whereas pm->u.hash has the special $commands
+ * get/set functions. Do not assign ht to pm, just delete it.
+ *
+ * On append, ht and pm->u.hash are the same table, don't delete.
+ */
+ if (ht != pm->u.hash)
+ deleteparamtable(ht);
}
static const struct gsu_scalar pmcommand_gsu =
@@ -349,7 +357,9 @@ setfunctions(Param pm, HashTable ht, int dis)
setfunction(hn->nam, ztrdup(getstrvalue(&v)), dis);
}
- hashsetfn(pm, ht);
+ /* See setpmcommands() above */
+ if (ht != pm->u.hash)
+ deleteparamtable(ht);
}
/**/
@@ -937,7 +947,7 @@ unsetpmoption(Param pm, UNUSED(int exp))
/**/
static void
-setpmoptions(UNUSED(Param pm), HashTable ht)
+setpmoptions(Param pm, HashTable ht)
{
int i;
HashNode hn;
@@ -962,7 +972,9 @@ setpmoptions(UNUSED(Param pm), HashTable ht)
(val && strcmp(val, "off")), 0, opts))
zwarn("can't change option: %s", hn->nam);
}
- deleteparamtable(ht);
+ /* See setpmcommands() above */
+ if (ht != pm->u.hash)
+ deleteparamtable(ht);
}
static const struct gsu_scalar pmoption_gsu =
@@ -1501,7 +1513,7 @@ unsetpmnameddir(Param pm, UNUSED(int exp))
/**/
static void
-setpmnameddirs(UNUSED(Param pm), HashTable ht)
+setpmnameddirs(Param pm, HashTable ht)
{
int i;
HashNode hn, next, hd;
@@ -1543,7 +1555,9 @@ setpmnameddirs(UNUSED(Param pm), HashTable ht)
i = opts[INTERACTIVE];
opts[INTERACTIVE] = 0;
- deleteparamtable(ht);
+ /* See setpmcommands() above */
+ if (ht != pm->u.hash)
+ deleteparamtable(ht);
opts[INTERACTIVE] = i;
}
@@ -1724,7 +1738,7 @@ unsetpmsalias(Param pm, UNUSED(int exp))
/**/
static void
-setaliases(HashTable alht, UNUSED(Param pm), HashTable ht, int flags)
+setaliases(HashTable alht, Param pm, HashTable ht, int flags)
{
int i;
HashNode hn, next, hd;
@@ -1760,7 +1774,9 @@ setaliases(HashTable alht, UNUSED(Param pm), HashTable ht, int flags)
alht->addnode(alht, ztrdup(hn->nam),
createaliasnode(ztrdup(val), flags));
}
- deleteparamtable(ht);
+ /* See setpmcommands() above */
+ if (ht != pm->u.hash)
+ deleteparamtable(ht);
}
/**/