landing string branch; see bug #73786

git-svn-id: svn://10.0.0.236/trunk@91049 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/string/src/nsPromiseFlatString.cpp

@@ -0,0 +1,116 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/*
+ * The contents of this file are subject to the Mozilla 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/MPL/
+ * 
+ * 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.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications.  Portions created by Netscape Communications are
+ * Copyright (C) 2001 by Netscape Communications.  All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Scott Collins <scc@mozilla.org> (original author)
+ */
+
+#include "nsPromiseFlatString.h"
+
+
+nsPromiseFlatString::nsPromiseFlatString( const nsPromiseFlatString& aOther )
+    : mFlattenedString(aOther.mFlattenedString)
+  {
+    if ( aOther.mPromisedString == &aOther.mFlattenedString )
+      mPromisedString = &mFlattenedString;
+    else
+      mPromisedString = aOther.mPromisedString;
+  }
+
+nsPromiseFlatString::nsPromiseFlatString( const nsAString& aString )
+  {
+    if ( aString.GetFlatBufferHandle() )
+      mPromisedString = NS_STATIC_CAST(const nsAFlatString*, &aString);
+    else
+      {
+        mFlattenedString = aString; // flatten |aString|
+        mPromisedString = &mFlattenedString;
+      }
+  }
+
+const PRUnichar*
+nsPromiseFlatString::get() const
+  {
+    return mPromisedString->get();
+  }
+
+const nsBufferHandle<PRUnichar>*
+nsPromiseFlatString::GetFlatBufferHandle() const
+  {
+    return mPromisedString->GetFlatBufferHandle();
+  }
+
+const nsBufferHandle<PRUnichar>*
+nsPromiseFlatString::GetBufferHandle() const
+  {
+    return mPromisedString->GetBufferHandle();
+  }
+
+const nsSharedBufferHandle<PRUnichar>*
+nsPromiseFlatString::GetSharedBufferHandle() const
+  {
+    return mPromisedString->GetSharedBufferHandle();
+  }
+
+
+
+
+nsPromiseFlatCString::nsPromiseFlatCString( const nsPromiseFlatCString& aOther )
+    : mFlattenedString(aOther.mFlattenedString)
+  {
+    if ( aOther.mPromisedString == &aOther.mFlattenedString )
+      mPromisedString = &mFlattenedString;
+    else
+      mPromisedString = aOther.mPromisedString;
+  }
+
+nsPromiseFlatCString::nsPromiseFlatCString( const nsACString& aString )
+  {
+    if ( aString.GetFlatBufferHandle() )
+      mPromisedString = NS_STATIC_CAST(const nsAFlatCString*, &aString);
+    else
+      {
+        mFlattenedString = aString; // flatten |aString|
+        mPromisedString = &mFlattenedString;
+      }
+  }
+
+const char*
+nsPromiseFlatCString::get() const
+  {
+    return mPromisedString->get();
+  }
+
+const nsBufferHandle<char>*
+nsPromiseFlatCString::GetFlatBufferHandle() const
+  {
+    return mPromisedString->GetFlatBufferHandle();
+  }
+
+const nsBufferHandle<char>*
+nsPromiseFlatCString::GetBufferHandle() const
+  {
+    return mPromisedString->GetBufferHandle();
+  }
+
+const nsSharedBufferHandle<char>*
+nsPromiseFlatCString::GetSharedBufferHandle() const
+  {
+    return mPromisedString->GetSharedBufferHandle();
+  }