Gabriel Ivăncescu : mshtml: Unlink variants using a helper function.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 392a15cdc9b6797c64c54126acb72ea932b6d41e
URL:    https://gitlab.winehq.org/wine/wine/-/commit/392a15cdc9b6797c64c54126acb72ea...

Author: Gabriel Ivăncescu <gabrielopcode(a)gmail.com>
Date:   Thu Aug  3 15:56:12 2023 +0300

mshtml: Unlink variants using a helper function.

And move the clear to the destructor.

Signed-off-by: Gabriel Ivăncescu <gabrielopcode(a)gmail.com>

---

 dlls/mshtml/dispex.c         |  2 +-
 dlls/mshtml/htmlevent.c      | 18 ++++++++++++++++--
 dlls/mshtml/htmlwindow.c     |  4 +++-
 dlls/mshtml/mshtml_private.h |  6 ++++++
 4 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/dlls/mshtml/dispex.c b/dlls/mshtml/dispex.c
index 09782fb83c9..6bd2c9cf6cb 100644
--- a/dlls/mshtml/dispex.c
+++ b/dlls/mshtml/dispex.c
@@ -2030,8 +2030,8 @@ void dispex_unlink(DispatchEx *This)
         return;
 
     for(prop = This->dynamic_data->props; prop < This->dynamic_data->props + This->dynamic_data->prop_cnt; prop++) {
-        VariantClear(&prop->var);
         prop->flags |= DYNPROP_DELETED;
+        unlink_variant(&prop->var);
     }
 
     if(This->dynamic_data->func_disps) {
diff --git a/dlls/mshtml/htmlevent.c b/dlls/mshtml/htmlevent.c
index 2c518464246..6b5ea716a75 100644
--- a/dlls/mshtml/htmlevent.c
+++ b/dlls/mshtml/htmlevent.c
@@ -2462,7 +2462,14 @@ static void DOMCustomEvent_unlink(DispatchEx *dispex)
 {
     DOMCustomEvent *custom_event = DOMCustomEvent_from_DOMEvent(DOMEvent_from_DispatchEx(dispex));
     DOMEvent_unlink(&custom_event->event.dispex);
+    unlink_variant(&custom_event->detail);
+}
+
+static void DOMCustomEvent_destructor(DispatchEx *dispex)
+{
+    DOMCustomEvent *custom_event = DOMCustomEvent_from_DOMEvent(DOMEvent_from_DispatchEx(dispex));
     VariantClear(&custom_event->detail);
+    DOMEvent_destructor(dispex);
 }
 
 typedef struct {
@@ -2607,7 +2614,14 @@ static void DOMMessageEvent_unlink(DispatchEx *dispex)
 {
     DOMMessageEvent *message_event = DOMMessageEvent_from_DOMEvent(DOMEvent_from_DispatchEx(dispex));
     DOMEvent_unlink(&message_event->event.dispex);
+    unlink_variant(&message_event->data);
+}
+
+static void DOMMessageEvent_destructor(DispatchEx *dispex)
+{
+    DOMMessageEvent *message_event = DOMMessageEvent_from_DOMEvent(DOMEvent_from_DispatchEx(dispex));
     VariantClear(&message_event->data);
+    DOMEvent_destructor(dispex);
 }
 
 static void DOMMessageEvent_init_dispex_info(dispex_data_t *info, compat_mode_t compat_mode)
@@ -3038,7 +3052,7 @@ static dispex_static_data_t DOMPageTransitionEvent_dispex = {
 };
 
 static const dispex_static_data_vtbl_t DOMCustomEvent_dispex_vtbl = {
-    DOMEvent_destructor,
+    DOMCustomEvent_destructor,
     DOMCustomEvent_unlink
 };
 
@@ -3056,7 +3070,7 @@ static dispex_static_data_t DOMCustomEvent_dispex = {
 };
 
 static const dispex_static_data_vtbl_t DOMMessageEvent_dispex_vtbl = {
-    DOMEvent_destructor,
+    DOMMessageEvent_destructor,
     DOMMessageEvent_unlink
 };
 
diff --git a/dlls/mshtml/htmlwindow.c b/dlls/mshtml/htmlwindow.c
index 9ebea7f8b57..a90a0da2dde 100644
--- a/dlls/mshtml/htmlwindow.c
+++ b/dlls/mshtml/htmlwindow.c
@@ -3777,7 +3777,7 @@ static void HTMLWindow_unlink(DispatchEx *dispex)
         IHTMLStorage_Release(local_storage);
     }
     IHTMLPerformanceTiming_Release(&This->performance_timing->IHTMLPerformanceTiming_iface);
-    VariantClear(&This->performance);
+    unlink_variant(&This->performance);
 }
 
 static void HTMLWindow_destructor(DispatchEx *dispex)
@@ -3785,6 +3785,8 @@ static void HTMLWindow_destructor(DispatchEx *dispex)
     HTMLInnerWindow *This = impl_from_DispatchEx(dispex);
     unsigned i;
 
+    VariantClear(&This->performance);
+
     for(i = 0; i < This->global_prop_cnt; i++)
         free(This->global_props[i].name);
     free(This->global_props);
diff --git a/dlls/mshtml/mshtml_private.h b/dlls/mshtml/mshtml_private.h
index ff6294749cd..6d57a314870 100644
--- a/dlls/mshtml/mshtml_private.h
+++ b/dlls/mshtml/mshtml_private.h
@@ -1497,6 +1497,12 @@ static inline void unlink_ref(void *p)
     }
 }
 
+static inline void unlink_variant(VARIANT *v)
+{
+    if(V_VT(v) == VT_DISPATCH || V_VT(v) == VT_UNKNOWN)
+        unlink_ref(&V_UNKNOWN(v));
+}
+
 #ifdef __i386__
 extern void *call_thiscall_func;
 #endif