e$B$J$+$@$G$9!#e(B
1.9e$B$G!"e(Bpack(“p”)e$B$7$F$G$-$?e(BStringe$B$re(Bfreezee$B$9$k$H!"e(Bunpacke$B$G$-$J$/$Je(B
e$B$j$^$9!#e(B1.8e$B$G$O$G$-$^$9!#e(B
$ ruby19 -v -e ‘[""].pack(“p”).freeze.unpack(“p”)’
ruby 1.9.0 (2008-01-22 revision 15165) [i686-linux]
-e:1:in unpack': no associated pointer (ArgumentError) from -e:1:in’
Index: string.c
— string.c (revision 15173)
+++ string.c (working copy)
@@ -772,4 +772,5 @@ rb_str_associate(VALUE str, VALUE add)
}
FL_SET(str, STR_ASSOC);
- RBASIC(add)->klass = 0;
RSTRING(str)->as.heap.aux.shared = add;
}
@@ -780,6 +781,7 @@ rb_str_associated(VALUE str)
{
if (STR_ASSOC_P(str)) {
- if (OBJ_FROZEN(str)) return Qfalse;
- return RSTRING(str)->as.heap.aux.shared;
- VALUE ary = RSTRING(str)->as.heap.aux.shared;
- if (OBJ_FROZEN(str)) OBJ_FREEZE(ary);
- return ary;
}
return Qfalse;
@@ -954,4 +956,8 @@ VALUE
rb_str_freeze(VALUE str)
{ - if (STR_ASSOC_P(str)) {
- VALUE ary = RSTRING(str)->as.heap.aux.shared;
- OBJ_FREEZE(ary);
- }
return rb_obj_freeze(str);
}