Initialize all re::engine::Plugin members explicitely

This way, we can turn the Newxz() into a Newx(), which will made memory
misreads more visible with PERL_POISON.

diff --git a/Plugin.xs b/Plugin.xs
index 296ca897771e0709027f49be25f0be11977a62c9..b06aec6365ed78bf08976da2b3fb6d4e28d3cb84 100644 (file)
--- a/Plugin.xs
+++ b/Plugin.xs
@@ -213,7 +213,7 @@ Plugin_comp(pTHX_ const SV * const pattern, const U32 flags)
 
  /* Our blessed object */
  obj = newSV(0);
- Newxz(re, 1, struct replug);
+ Newx(re, 1, struct replug);
  sv_setref_pv(obj, XSH_PACKAGE, (void *) re);
 
  newREGEXP(RX);
@@ -245,18 +245,17 @@ Plugin_comp(pTHX_ const SV * const pattern, const U32 flags)
  re->pattern  = (SV *) pattern;
  SvREFCNT_inc_simple_void(re->pattern);
 
- /* If there's an exec callback, store it into the private object so that it
-  * will be the one to be called, even if the engine changes in between */
- if (h->exec) {
-  re->cb_exec = h->exec;
-  SvREFCNT_inc_simple_void_NN(h->exec);
- }
+ re->str   = NULL;
+ re->stash = NULL;
 
- /* Same goes for the free callback, if there's one. */
- if (h->free) {
-  re->cb_free = h->free;
-  SvREFCNT_inc_simple_void_NN(h->free);
- }
+ /* Store the default exec callback (which may be NULL) into the regexp
+  * object. */
+ re->cb_exec = h->exec;
+ SvREFCNT_inc_simple_void(h->exec);
+
+ /* Same goes for the free callback. */
+ re->cb_free = h->free;
+ SvREFCNT_inc_simple_void(h->free);
 
  re->cb_num_capture_buff_FETCH  = NULL;
  re->cb_num_capture_buff_STORE  = NULL;