- const MGWIZ *w;
- MAGIC *mg;
- w = SV2MGWIZ(HeVAL(key));
- w = vmg_wizard_clone(w);
- sv = MGWIZ2SV(w);
- mg = sv_magicext(sv, NULL, PERL_MAGIC_ext, &vmg_wizard_vtbl, NULL, 0);
- mg->mg_private = SIG_WZO;
+ const MGWIZ *w = SV2MGWIZ(HeVAL(key));
+ if (w) {
+ MAGIC *mg;
+ w = vmg_wizard_clone(w);
+ sv = MGWIZ2SV(w);
+ mg = sv_magicext(sv, NULL, PERL_MAGIC_ext, &vmg_wizard_vtbl, NULL, 0);
+ mg->mg_private = SIG_WZO;
+ } else {
+ sv = MGWIZ2SV(NULL);
+ }