third_party/WebKit/Source/platform/NotImplemented.h

   1 /*
   2  * Copyright (C) 2007 Apple Computer, Inc.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef NotImplemented_h
  27 #define NotImplemented_h
  28
  29 #include "platform/PlatformExport.h"
  30 #include "wtf/Assertions.h"
  31
  32 #if LOG_DISABLED
  33     #define notImplemented() ((void)0)
  34 #else
  35
  36 namespace blink {
  37 PLATFORM_EXPORT WTFLogChannel* notImplementedLoggingChannel();
  38 } // namespace blink
  39
  40 #define notImplemented() do { \
  41         static bool havePrinted = false; \
  42         if (!havePrinted) { \
  43             WTFLogVerbose(__FILE__, __LINE__, WTF_PRETTY_FUNCTION, blink::notImplementedLoggingChannel(), "UNIMPLEMENTED: "); \
  44             havePrinted = true; \
  45         } \
  46     } while (0)
  47
  48 #endif // NDEBUG
  49
  50 #endif // NotImplemented_h