From: Vincent Pit <vince@profvince.com>
Date: Fri, 10 Aug 2012 16:47:59 +0000 (+0200)
Subject: Rename vmg_uvar_del() to vmg_mg_del() to reuse its logic
X-Git-Tag: v0.51~9
X-Git-Url: http://git.vpit.fr/?p=perl%2Fmodules%2FVariable-Magic.git;a=commitdiff_plain;h=056b5122597d90171577d0fad01bf17d08e401e8

Rename vmg_uvar_del() to vmg_mg_del() to reuse its logic

The new vmg_mg_del() is now also used to remove our PERL_MAGIC_ext tokens.
---

diff --git a/Magic.xs b/Magic.xs
index 24f8d5c..94d816f 100644
--- a/Magic.xs
+++ b/Magic.xs
@@ -755,6 +755,7 @@ STATIC SV *vmg_data_get(pTHX_ SV *sv, const vmg_wizard *w) {
 /* ... Magic cast/dispell .................................................. */
 
 #if VMG_UVAR
+
 STATIC I32 vmg_svt_val(pTHX_ IV, SV *);
 
 typedef struct {
@@ -762,17 +763,32 @@ typedef struct {
  struct ufuncs old_uf;
 } vmg_uvar_ud;
 
-STATIC void vmg_uvar_del(SV *sv, MAGIC *prevmagic, MAGIC *mg, MAGIC *moremagic) {
- if (prevmagic) {
+#endif /* VMG_UVAR */
+
+STATIC void vmg_mg_del(pTHX_ SV *sv, MAGIC *prevmagic, MAGIC *mg, MAGIC *moremagic) {
+#define vmg_mg_del(S, P, M, N) vmg_mg_del(aTHX_ (S), (P), (M), (N))
+ if (prevmagic)
   prevmagic->mg_moremagic = moremagic;
- } else {
+ else
   SvMAGIC_set(sv, moremagic);
- }
  mg->mg_moremagic = NULL;
- Safefree(mg->mg_ptr);
+
+ /* Destroy private data */
+#if VMG_UVAR
+ if (mg->mg_type == PERL_MAGIC_uvar) {
+  Safefree(mg->mg_ptr);
+ } else {
+#endif /* VMG_UVAR */
+  if (mg->mg_obj != sv)
+   SvREFCNT_dec(mg->mg_obj);
+  /* Unreference the wizard */
+  SvREFCNT_dec((SV *) mg->mg_ptr);
+#if VMG_UVAR
+ }
+#endif /* VMG_UVAR */
+
  Safefree(mg);
 }
-#endif /* VMG_UVAR */
 
 STATIC UV vmg_cast(pTHX_ SV *sv, const vmg_wizard *w, const SV *wiz, SV **args, I32 items) {
 #define vmg_cast(S, W, WIZ, A, I) vmg_cast(aTHX_ (S), (W), (WIZ), (A), (I))
@@ -845,7 +861,7 @@ STATIC UV vmg_cast(pTHX_ SV *sv, const vmg_wizard *w, const SV *wiz, SV **args,
    } else {
     /* It's another uvar magic, backup it and replace it by ours. */
     ud.old_uf = *uf;
-    vmg_uvar_del(sv, prevmagic, mg, moremagic);
+    vmg_mg_del(sv, prevmagic, mg, moremagic);
    }
   }
 
@@ -898,19 +914,7 @@ STATIC UV vmg_dispell(pTHX_ SV *sv, const vmg_wizard *w) {
  if (!mg)
   return 0;
 
- if (prevmagic) {
-  prevmagic->mg_moremagic = moremagic;
- } else {
-  SvMAGIC_set(sv, moremagic);
- }
- mg->mg_moremagic = NULL;
-
- /* Destroy private data */
- if (mg->mg_obj != sv)
-  SvREFCNT_dec(mg->mg_obj);
- /* Unreference the wizard */
- SvREFCNT_dec((SV *) mg->mg_ptr);
- Safefree(mg);
+ vmg_mg_del(sv, prevmagic, mg, moremagic);
 
 #if VMG_UVAR
  if (uvars == 1 && SvTYPE(sv) >= SVt_PVHV) {
@@ -945,7 +949,7 @@ STATIC UV vmg_dispell(pTHX_ SV *sv, const vmg_wizard *w) {
     mg->mg_len = sizeof(*uf);
    } else {
     /* Remove the uvar magic. */
-    vmg_uvar_del(sv, prevmagic, mg, moremagic);
+    vmg_mg_del(sv, prevmagic, mg, moremagic);
    }
   }
  }
@@ -1191,14 +1195,10 @@ STATIC int vmg_svt_free_cleanup(pTHX_ void *ud) {
  /* We are about to croak() while sv is being destroyed. Try to clean up
   * things a bit. */
  mg = SvMAGIC(sv);
- SvREFCNT_dec((SV *) mg->mg_ptr);
- /* mg->mg_obj may not be refcounted if the data constructor returned the
-  * variable itself. */
- if (mg->mg_flags & MGf_REFCOUNTED)
-  SvREFCNT_dec(mg->mg_obj);
- SvMAGIC_set(sv, mg->mg_moremagic);
- Safefree(mg);
- mg_magical(sv);
+ if (mg) {
+  vmg_mg_del(sv, NULL, mg, mg->mg_moremagic);
+  mg_magical(sv);
+ }
  SvREFCNT_dec(sv);
 
  /* After that, propagate the error upwards. */