Move NOTIMPLEMENTED() macro from "base/notimplemented.h" into "base/logging.h".

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@1300 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 34 insertions, 0 deletions

diff --git a/base/logging.h b/base/logging.h
index 168bc32..95cbfac 100644
--- a/base/logging.h
+++ b/base/logging.h
@@ -497,5 +497,39 @@ inline std::ostream& operator<<(std::ostream& out, const std::wstring& wstr) {
   return out << wstr.c_str();
 }
 
+// The NOTIMPLEMENTED() macro annotates codepaths which have
+// not been implemented yet.
+//
+// The implementation of this macro is controlled by NOTIMPLEMENTED_POLICY:
+//   0 -- Do nothing (stripped by compiler)
+//   1 -- Warn at compile time
+//   2 -- Fail at compile time
+//   3 -- Fail at runtime (DCHECK)
+//   4 -- [default] LOG(ERROR) at runtime
+//   5 -- LOG(ERROR) at runtime, only once per call-site
+
+#ifndef NOTIMPLEMENTED_POLICY
+// Select default policy: LOG(ERROR)
+#define NOTIMPLEMENTED_POLICY 4
+#endif
+
+#if NOTIMPLEMENTED_POLICY == 0
+#define NOTIMPLEMENTED() ;
+#elif NOTIMPLEMENTED_POLICY == 1
+// TODO, figure out how to generate a warning
+#define NOTIMPLEMENTED() COMPILE_ASSERT(false, NOT_IMPLEMENTED)
+#elif NOTIMPLEMENTED_POLICY == 2
+#define NOTIMPLEMENTED() COMPILE_ASSERT(false, NOT_IMPLEMENTED)
+#elif NOTIMPLEMENTED_POLICY == 3
+#define NOTIMPLEMENTED() NOTREACHED()
+#elif NOTIMPLEMENTED_POLICY == 4
+#define NOTIMPLEMENTED() LOG(ERROR) << "NOT IMPLEMENTED!"
+#elif NOTIMPLEMENTED_POLICY == 5
+#define NOTIMPLEMENTED() do {\
+  static int count = 0;\
+  LOG_IF(ERROR, 0 == count++) << "NOT IMPLEMENTED!";\
+} while(0)
+#endif
+
 #endif  // BASE_LOGGING_H_