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#ifndef _DEBUG_H
#define _DEBUG_H
#define DEVELOPER 4
#define ALPHA 3
#define BETA 2
#define RELEASE 1
#define NO_SEATBELT 0
#ifndef RELEASE_LEVEL
#define RELEASE_LEVEL RELEASE
#endif
#if RELEASE_LEVEL >= ALPHA
#include <cstdlib> // for `getenv'
#include <cstring> // for `strcmp'
#endif
#if RELEASE_LEVEL >= BETA
#include <cassert>
#endif
#if RELEASE_LEVEL >= RELEASE
#include <iostream>
#endif
#include <sstream> // used for constructing exceptions
namespace ledger {
//////////////////////////////////////////////////////////////////////
//
// Debugging facilities for Ledger
//
// - In developer level, all checking and debugging facilities are
// active.
//
// - Alpha level does not include performance degrading
// VALIDATE calls.
//
// - Beta level is like Alpha, but does not include debugging
// facilities.
//
// - Release level does not include CONFIRM checks, but does include
// assert calls.
//
// - Running with no seatbelt disables all checking except for normal
// syntax and semantic error checking.
#define WARN(x) \
if (ledger::warning_stream) \
*ledger::warning_stream << "Warning: "<< x << std::endl
#define ERR(exc, x) { \
std::ostringstream s; \
s << x; \
throw exc(s.str().c_str()); \
}
#if RELEASE_LEVEL >= ALPHA
#define DEBUG_ENABLED
extern std::ostream * warning_stream;
extern std::ostream * debug_stream;
extern bool free_debug_stream;
inline bool _debug_active(const char * const cls) {
char * debug = std::getenv("DEBUG_CLASS");
return debug && std::strcmp(debug, cls) == 0;
}
#define DEBUG_CLASS(cls) static const char * const _debug_cls = (cls)
#define DEBUG(cls) (ledger::_debug_active(cls))
#define DEBUG_() DEBUG(_debug_cls)
#define DEBUG_PRINT(cls, x) \
if (ledger::debug_stream && ledger::_debug_active(cls)) { \
*ledger::debug_stream << x << std::endl; \
}
#define DEBUG_PRINT_(x) DEBUG_PRINT(_debug_cls, x)
#define CONFIRM(x) assert(x)
#if RELEASE_LEVEL == DEVELOPER
#define VALIDATE(x) assert(x)
#else
#define VALIDATE(x)
#endif
#else // RELEASE_LEVEL
#define DEBUG_CLASS(cls)
#define DEBUG(cls) 0
#define DEBUG_() 0
#define DEBUG_PRINT(cls, x)
#define DEBUG_PRINT_(x)
#define VALIDATE(x)
#if RELEASE_LEVEL == NO_SEATBELT
#undef assert
#define assert(x)
#define CONFIRM(x)
#elif RELEASE_LEVEL >= RELEASE
extern std::ostream * warning_stream;
#define CONFIRM(x)
#elif RELEASE_LEVEL >= BETA
#define CONFIRM(x) assert(x)
#endif
#endif // RELEASE_LEVEL
} // namespace ledger
#endif // _DEBUG_H
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