Impl fixes; don't try to clone/makeImmutable null interface members

calendar/base/src/calEvent.js

@@ -10,6 +10,7 @@ calEvent.prototype = {
             !aIID.equals(Components.interfaces.calIItemBase) &&
             !aIID.equals(Components.interfaces.calIEvent))
         {
+            dump ("calEvent QI failed to " + aIID + "\n");
             throw Components.results.NS_ERROR_NO_INTERFACE;
         }
 
@@ -19,13 +20,26 @@ calEvent.prototype = {
     clone: function () {
         var m = new calEvent();
         this.cloneItemBaseInto(m);
+        if (this.mStartDate)
             m.mStartDate = this.mStartDate.clone();
+        if (this.mEndDate)
             m.mEndDate = this.mEndDate.clone();
+        if (this.mStampDate)
             m.mStampDate = this.mStampDate.clone();
 
         return m;
     },
 
+    makeImmutable: function () {
+        if (this.mStartDate)
+            this.mStartDate.makeImmutable();
+        if (this.mEndDate)
+            this.mEndDate.makeImmutable();
+        if (this.mStampDate)
+            this.mStampDate.makeImmutable();
+        this.makeItemBaseImmutable();
+    },
+
 
 
 

calendar/base/src/calEvent.js.pre

@@ -55,6 +55,7 @@ calEvent.prototype = {
             !aIID.equals(Components.interfaces.calIItemBase) &&
             !aIID.equals(Components.interfaces.calIEvent))
         {
+            dump ("calEvent QI failed to " + aIID + "\n");
             throw Components.results.NS_ERROR_NO_INTERFACE;
         }
 
@@ -64,13 +65,26 @@ calEvent.prototype = {
     clone: function () {
         var m = new calEvent();
         this.cloneItemBaseInto(m);
+        if (this.mStartDate)
             m.mStartDate = this.mStartDate.clone();
+        if (this.mEndDate)
             m.mEndDate = this.mEndDate.clone();
+        if (this.mStampDate)
             m.mStampDate = this.mStampDate.clone();
 
         return m;
     },
 
+    makeImmutable: function () {
+        if (this.mStartDate)
+            this.mStartDate.makeImmutable();
+        if (this.mEndDate)
+            this.mEndDate.makeImmutable();
+        if (this.mStampDate)
+            this.mStampDate.makeImmutable();
+        this.makeItemBaseImmutable();
+    },
+
 #define MEMBER_ATTR(varname, initvalue, attrname) \
     varname: initvalue,                           \
     get attrname() { return this.varname; },      \

calendar/base/src/calItemBase.js

@@ -13,13 +13,17 @@ calItemBase.prototype = {
 
     mImmutable: false,
     get isMutable() { return this. mImmutable; },
-    makeImmutable: function() {
+
+    makeItemBaseImmutable: function() {
         if (this.mImmutable)
             throw Components.results.NS_ERROR_FAILURE;
 
 
+        if (this.mCreationDate)
             this.mCreationDate.makeImmutable();
+        if (this.mRecurrenceInfo)
             this.mRecurrenceInfo.makeImmutable();
+        if (this.mAlarmTime)
             this.mAlarmTime.makeImmutable();
 
         this.mImmutable = true;
@@ -39,9 +43,12 @@ calItemBase.prototype = {
         m.mMethod = this.mMethod;
         m.mStatus = this.mStatus;
         m.mHasAlarm = this.mHasAlarm;
-        m.mRecurrenceInfo = this.mRecurrenceInfo.clone();
 
+        if (this.mRecurrenceInfo)
+            m.mRecurrenceInfo = this.mRecurrenceInfo.clone();
+        if (this.mCreationDate)
             m.mCreationDate = this.mCreationDate.clone();
+        if (this.mAlarmTime)
             m.mAlarmTime = this.mAlarmTime.clone();
 
 

calendar/base/src/calItemBase.js.pre

@@ -55,13 +55,17 @@ calItemBase.prototype = {
 
     mImmutable: false,
     get isMutable() { return this. mImmutable; },
-    makeImmutable: function() {
+
+    makeItemBaseImmutable: function() {
         if (this.mImmutable)
             throw Components.results.NS_ERROR_FAILURE;
 
         // make all our components immutable
+        if (this.mCreationDate)
             this.mCreationDate.makeImmutable();
+        if (this.mRecurrenceInfo)
             this.mRecurrenceInfo.makeImmutable();
+        if (this.mAlarmTime)
             this.mAlarmTime.makeImmutable();
 
         this.mImmutable = true;
@@ -81,9 +85,12 @@ calItemBase.prototype = {
         m.mMethod = this.mMethod;
         m.mStatus = this.mStatus;
         m.mHasAlarm = this.mHasAlarm;
-        m.mRecurrenceInfo = this.mRecurrenceInfo.clone();
 
+        if (this.mRecurrenceInfo)
+            m.mRecurrenceInfo = this.mRecurrenceInfo.clone();
+        if (this.mCreationDate)
             m.mCreationDate = this.mCreationDate.clone();
+        if (this.mAlarmTime)
             m.mAlarmTime = this.mAlarmTime.clone();
 
         // these need fixing