headers/private/shared/FunctionTracer.h

   1 /*
   2  * Copyright © 2008 Stephan Aßmus <superstippi@gmx.de>
   3  * All rights reserved. Distributed under the terms of the MIT/X11 license.
   4  */
   5 #ifndef FUNCTION_TRACER_H
   6 #define FUNCTION_TRACER_H
   7
   8 #include <stdio.h>
   9
  10 #include <String.h>
  11
  12 namespace BPrivate {
  13
  14 class FunctionTracer {
  15 public:
  16         FunctionTracer(const char* className, const char* functionName,
  17                         int32& depth)
  18                 : fFunctionName(),
  19                   fPrepend(),
  20                   fFunctionDepth(depth)
  21         {
  22                 fFunctionDepth++;
  23                 fPrepend.Append(' ', fFunctionDepth * 2);
  24                 fFunctionName << className << "::" << functionName << "()";
  25
  26                 printf("%s%s {\n", fPrepend.String(), fFunctionName.String());
  27         }
  28
  29          ~FunctionTracer()
  30         {
  31 //              printf("%s - leave\n", fFunctionName.String());
  32                 printf("%s}\n", fPrepend.String());
  33                 fFunctionDepth--;
  34         }
  35
  36 private:
  37         BString fFunctionName;
  38         BString fPrepend;
  39         int32&  fFunctionDepth;
  40 };
  41
  42 }       // namespace BPrivate
  43
  44 using BPrivate::FunctionTracer;
  45
  46 #endif // FUNCTION_TRACER_H