IN32OLE_VARIANT.new accepts nil as first argument for some VARIANT TYPE. fix memory leak.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@11542 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

4 files changed, 45 insertions, 21 deletions

diff --git a/ChangeLog b/ChangeLog
index 83c6437cd..85e7ccbe5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+Fri Jan 19 06:53:38 2007  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (olevariant_free): fix memory leak.
+
+	* ext/win32ole/win32ole.c (ole_val2olevariantdata): 
+	  WIN32OLE_VARIANT.new accepts nil as first argument for some VARIANT 
+	  TYPE.
+
+	* test/win32ole/test_win32ole: ditto. 
+
 Wed Jan 17 17:31:28 2007  Koichi Sasada  <ko1@atdot.net>
 
 	* some refactoring around yarvcore and proc.
diff --git a/ext/win32ole/win32ole.c b/ext/win32ole/win32ole.c
index 9d29e9183..3c5b88fdc 100644
--- a/ext/win32ole/win32ole.c
+++ b/ext/win32ole/win32ole.c
@@ -79,7 +79,7 @@
 
 #define WC2VSTR(x) ole_wc2vstr((x), TRUE)
 
-#define WIN32OLE_VERSION "0.8.3"
+#define WIN32OLE_VERSION "0.8.4"
 
 typedef HRESULT (STDAPICALLTYPE FNCOCREATEINSTANCEEX)
     (REFCLSID, IUnknown*, DWORD, COSERVERINFO*, DWORD, MULTI_QI*);
@@ -1148,27 +1148,35 @@ ole_val2olevariantdata(VALUE val, VARTYPE vtype, struct olevariantdata *pvar)
                 SafeArrayDestroy(psa);
         }
     } else {
-        ole_val2variant(val, &(pvar->realvar));
-        if (vtype & VT_BYREF) {
-            if ( (vtype & ~VT_BYREF) == V_VT(&(pvar->realvar))) {
+        if (val == Qnil) {
+            V_VT(&(pvar->realvar)) = vtype & ~VT_BYREF;
+            V_VT(&(pvar->var)) = vtype;
+            if (vtype & VT_BYREF) {
                 ole_var2ptr_var(&(pvar->realvar), &(pvar->var));
-            } else {
-                VariantInit(&var);
-                hr = VariantChangeTypeEx(&(var), &(pvar->realvar), 
-                                     LOCALE_SYSTEM_DEFAULT, 0, (VARTYPE)(vtype & ~VT_BYREF));
-                if (SUCCEEDED(hr)) {
-                    VariantClear(&(pvar->realvar));
-                    hr = VariantCopy(&(pvar->realvar), &var);
-                    VariantClear(&var);
-                    ole_var2ptr_var(&(pvar->realvar), &(pvar->var));
-                }
             }
         } else {
-            if (vtype == V_VT(&(pvar->realvar))) {
-                hr = VariantCopy(&(pvar->var), &(pvar->realvar));
+            ole_val2variant(val, &(pvar->realvar));
+            if (vtype & VT_BYREF) {
+                if ( (vtype & ~VT_BYREF) == V_VT(&(pvar->realvar))) {
+                    ole_var2ptr_var(&(pvar->realvar), &(pvar->var));
+                } else {
+                    VariantInit(&var);
+                    hr = VariantChangeTypeEx(&(var), &(pvar->realvar), 
+                            LOCALE_SYSTEM_DEFAULT, 0, (VARTYPE)(vtype & ~VT_BYREF));
+                    if (SUCCEEDED(hr)) {
+                        VariantClear(&(pvar->realvar));
+                        hr = VariantCopy(&(pvar->realvar), &var);
+                        VariantClear(&var);
+                        ole_var2ptr_var(&(pvar->realvar), &(pvar->var));
+                    }
+                }
             } else {
-                hr = VariantChangeTypeEx(&(pvar->var), &(pvar->realvar), 
-                        LOCALE_SYSTEM_DEFAULT, 0, vtype);
+                if (vtype == V_VT(&(pvar->realvar))) {
+                    hr = VariantCopy(&(pvar->var), &(pvar->realvar));
+                } else {
+                    hr = VariantChangeTypeEx(&(pvar->var), &(pvar->realvar), 
+                            LOCALE_SYSTEM_DEFAULT, 0, vtype);
+                }
             }
         }
     }
@@ -6810,6 +6818,7 @@ olevariant_free(struct olevariantdata *pvar)
 {
     VariantClear(&(pvar->realvar));
     VariantClear(&(pvar->var));
+    free(pvar);
 }
 
 static VALUE
diff --git a/test/win32ole/test_win32ole_variant.rb b/test/win32ole/test_win32ole_variant.rb
index ad7c94fd1..22a2cd8f7 100644
--- a/test/win32ole/test_win32ole_variant.rb
+++ b/test/win32ole/test_win32ole_variant.rb
@@ -105,5 +105,10 @@ if defined?(WIN32OLE_VARIANT)
       assert_equal([65, 0], obj.value)
     end
 
+    def test_create_nil_dispatch
+      var = WIN32OLE_VARIANT.new(nil, WIN32OLE::VARIANT::VT_DISPATCH)
+      assert_nil(var.value)
+    end
+
   end
 end
diff --git a/version.h b/version.h
index 74a9c6687..6961bfcc9 100644
--- a/version.h
+++ b/version.h
@@ -1,7 +1,7 @@
 #define RUBY_VERSION "1.9.0"
-#define RUBY_RELEASE_DATE "2007-01-17"
+#define RUBY_RELEASE_DATE "2007-01-19"
 #define RUBY_VERSION_CODE 190
-#define RUBY_RELEASE_CODE 20070117
+#define RUBY_RELEASE_CODE 20070119
 #define RUBY_PATCHLEVEL 0
 
 #define RUBY_VERSION_MAJOR 1
@@ -9,7 +9,7 @@
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_YEAR 2007
 #define RUBY_RELEASE_MONTH 1
-#define RUBY_RELEASE_DAY 17
+#define RUBY_RELEASE_DAY 19
 
 RUBY_EXTERN const char ruby_version[];
 RUBY_EXTERN const char ruby_release_date[];