Factoring out some internal data management code. r=ftang

intl/uconv/src/nsObjectArray.cpp

@@ -0,0 +1,100 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ */
+
+#include "nsObjectArray.h"
+
+//----------------------------------------------------------------------------
+// Class nsObject [implementation]
+
+// XXX clarify why I can't have this method as a pure virtual one?!
+nsObject::~nsObject()
+{
+}
+
+//----------------------------------------------------------------------------
+// Class nsObjectsArray [implementation]
+
+nsObjectArray::nsObjectArray(PRInt32 aCapacity)
+{
+  Init(aCapacity);
+}
+
+nsObjectArray::nsObjectArray()
+{
+  Init(64);
+}
+
+nsObjectArray::~nsObjectArray()
+{
+  for (PRInt32 i = 0; i < mUsage; i++) delete mArray[i];
+  if (mArray != NULL) delete [] mArray;
+}
+
+nsObject ** nsObjectArray::GetArray()
+{
+  return mArray;
+}
+
+PRInt32 nsObjectArray::GetUsage()
+{
+  return mUsage;
+}
+
+void nsObjectArray::Init(PRInt32 aCapacity)
+{
+  mCapacity = aCapacity;
+  mUsage = 0;
+  mArray = NULL;
+}
+
+nsresult nsObjectArray::InsureCapacity(PRInt32 aCapacity)
+{
+  PRInt32 i;
+
+  if (mArray == NULL) {
+    mArray = new nsObject * [mCapacity];
+    if (mArray == NULL) return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  if (aCapacity > mCapacity) {
+    while (aCapacity > mCapacity) mCapacity *= 2;
+    nsObject ** newArray = new nsObject * [mCapacity];
+    if (newArray == NULL) return NS_ERROR_OUT_OF_MEMORY;
+    for (i = 0; i < mUsage; i++) newArray[i] = mArray[i];
+    delete [] mArray;
+    mArray = newArray;
+  }
+
+  return NS_OK;
+}
+
+nsresult nsObjectArray::AddObject(nsObject * aObject)
+{
+  nsresult res;
+
+  res = InsureCapacity(mUsage + 1);
+  if (NS_FAILED(res)) return res;
+
+  (mArray)[mUsage++] = aObject;
+  return NS_OK;
+}
+

intl/uconv/src/nsObjectArray.h

@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ */
+
+#include "nscore.h"
+#include "nsError.h"
+
+//----------------------------------------------------------------------------
+// Class nsObject [declaration]
+
+class nsObject
+{
+public: 
+  virtual ~nsObject();
+};
+
+//----------------------------------------------------------------------------
+// Class nsObjectArray [declaration]
+
+class nsObjectArray
+{
+private:
+
+  nsObject **   mArray;
+  PRInt32       mCapacity;
+  PRInt32       mUsage;
+
+  void Init(PRInt32 aCapacity);
+
+public: 
+  nsObjectArray();
+  nsObjectArray(PRInt32 aCapacity);
+  ~nsObjectArray();
+
+  nsObject ** GetArray();
+  PRInt32 GetUsage();
+  nsresult InsureCapacity(PRInt32 aCapacity);
+  nsresult AddObject(nsObject * aObject);
+};
+