mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-30 00:01:50 +00:00
303 lines
9.1 KiB
C++
303 lines
9.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/*
|
|
* The contents of this file are subject to the Netscape 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/NPL/
|
|
*
|
|
* 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.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
#ifndef nsDebug_h___
|
|
#define nsDebug_h___
|
|
|
|
#include "nsCom.h"
|
|
#include "prtypes.h"
|
|
|
|
#ifdef DEBUG
|
|
#define NS_DEBUG
|
|
#endif
|
|
|
|
/**
|
|
* Namespace for debugging methods. Note that your code must use the
|
|
* macros defined later in this file so that the debug code can be
|
|
* conditionally compiled out.
|
|
*/
|
|
|
|
/* in case this is included by a C file */
|
|
#ifdef __cplusplus
|
|
|
|
class nsDebug {
|
|
public:
|
|
/**
|
|
* When called, this will log a fatal abort message (to stderr and
|
|
* to the NSPR log file) and then abort the program. This is
|
|
* used by the NS_ABORT_IF_FALSE macro below when debugging is
|
|
* enabled.
|
|
*/
|
|
static NS_COM void AbortIfFalse(const char* aStr, const char* aExpr,
|
|
const char* aFile, PRIntn aLine);
|
|
|
|
/**
|
|
* Log a warning message when an expression is not true. Used by
|
|
* the NS_WARN_IF_FALSE macro below when debugging is enabled.
|
|
*
|
|
* The default behavior of this method is print a message to stderr
|
|
* and to log an event in the NSPR log file.
|
|
*/
|
|
static NS_COM PRBool WarnIfFalse(const char* aStr, const char* aExpr,
|
|
const char* aFile, PRIntn aLine);
|
|
|
|
/**
|
|
* Enable flying a warning message box (if the platform supports
|
|
* such a thing) when WarnIfFalse is called in addition to
|
|
* the usual printing to stderr and the NSPR log file.
|
|
*
|
|
* If aOnOff is PR_TRUE then the message-box is enabled, otherwise
|
|
* the message-box is disabled.
|
|
*
|
|
* The default state for the message-box enable is "off".
|
|
*
|
|
* Note also that the implementation looks at an environment
|
|
* variable (for those platforms that have environment variables...)
|
|
* called MOZ_WARNING_MESSAGE_BOX that when set enables the
|
|
* warning message box by default.
|
|
*/
|
|
static NS_COM void SetWarningMessageBoxEnable(PRBool aOnOff);
|
|
|
|
/**
|
|
* Get the current setting of the message-box enable.
|
|
*/
|
|
static NS_COM PRBool GetWarningMessageBoxEnable(void);
|
|
|
|
// Note: Methods below this line are the old ones; please start using
|
|
// the new ones. The old ones will be removed eventually!
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
// XXX add in log controls here
|
|
// XXX probably want printf type arguments
|
|
|
|
/**
|
|
* Abort the executing program. This works on all architectures.
|
|
*/
|
|
static NS_COM void Abort(const char* aFile, PRIntn aLine);
|
|
|
|
/**
|
|
* Break the executing program into the debugger.
|
|
*/
|
|
static NS_COM void Break(const char* aFile, PRIntn aLine);
|
|
|
|
/**
|
|
* Log a pre-condition message to the debug log
|
|
*/
|
|
static NS_COM void PreCondition(const char* aStr, const char* aExpr,
|
|
const char* aFile, PRIntn aLine);
|
|
|
|
/**
|
|
* Log a post-condition message to the debug log
|
|
*/
|
|
static NS_COM void PostCondition(const char* aStr, const char* aExpr,
|
|
const char* aFile, PRIntn aLine);
|
|
|
|
/**
|
|
* Log an assertion message to the debug log
|
|
*/
|
|
static NS_COM void Assertion(const char* aStr, const char* aExpr,
|
|
const char* aFile, PRIntn aLine);
|
|
|
|
/**
|
|
* Log a not-yet-implemented message to the debug log
|
|
*/
|
|
static NS_COM void NotYetImplemented(const char* aMessage,
|
|
const char* aFile, PRIntn aLine);
|
|
|
|
/**
|
|
* Log a not-reached message to the debug log
|
|
*/
|
|
static NS_COM void NotReached(const char* aMessage,
|
|
const char* aFile, PRIntn aLine);
|
|
|
|
/**
|
|
* Log an error message to the debug log. This call returns.
|
|
*/
|
|
static NS_COM void Error(const char* aMessage,
|
|
const char* aFile, PRIntn aLine);
|
|
|
|
/**
|
|
* Log a warning message to the debug log.
|
|
*/
|
|
static NS_COM void Warning(const char* aMessage,
|
|
const char* aFile, PRIntn aLine);
|
|
};
|
|
|
|
#ifdef DEBUG
|
|
|
|
/**
|
|
* Abort the execution of the program if the expresion evaluates to
|
|
* false.
|
|
*
|
|
* There is no status value returned from the macro.
|
|
*
|
|
* Note that the non-debug version of this macro does <b>not</b>
|
|
* evaluate the expression argument. Hence side effect statements
|
|
* as arguments to the macro will yield improper execution in a
|
|
* non-debug build. For example:
|
|
*
|
|
* NS_ABORT_IF_FALSE(0 == foo++, "yikes foo should be zero");
|
|
*
|
|
* Note also that the non-debug version of this macro does <b>not</b>
|
|
* evaluate the message argument.
|
|
*/
|
|
#define NS_ABORT_IF_FALSE(_expr,_msg) \
|
|
PR_BEGIN_MACRO \
|
|
if (!(_expr)) { \
|
|
nsDebug::AbortIfFalse(_msg, #_expr, __FILE__, __LINE__); \
|
|
} \
|
|
PR_END_MACRO
|
|
|
|
/**
|
|
* Warn if a given condition is false.
|
|
*
|
|
* Program execution continues past the usage of this macro.
|
|
*
|
|
* The macro returns a status value that can be used in an "if"
|
|
* statement. For example:
|
|
*
|
|
* if (NS_WARN_IF_FALSE(aPtr, "null pointer")) {
|
|
* return NS_ERROR_NULL_POINTER;
|
|
* }
|
|
*
|
|
* Note that the non-debug version of this macro <b>does</b> evaluate
|
|
* the expression as this macro continues to return a boolean
|
|
* value. Therefore side effect expressions will work
|
|
* correctly. However, they are still "poor form" so don't do it!
|
|
*
|
|
* Note also that the non-debug version of this macro does <b>not</b>
|
|
* evaluate the message argument.
|
|
*/
|
|
#define NS_WARN_IF_FALSE(_e,_msg) \
|
|
(!(_e) ? nsDebug::WarnIfFalse(_msg, #_e, __FILE__, __LINE__) : PR_FALSE)
|
|
|
|
// Note: Macros below this line are the old ones; please start using
|
|
// the new ones. The old ones will be removed eventually!
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
* Test a precondition for truth. If the expression is not true then
|
|
* trigger a program failure.
|
|
*/
|
|
#define NS_PRECONDITION(expr,str) \
|
|
if (!(expr)) \
|
|
nsDebug::PreCondition(str, #expr, __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Test an assertion for truth. If the expression is not true then
|
|
* trigger a program failure.
|
|
*/
|
|
#define NS_ASSERTION(expr,str) \
|
|
if (!(expr)) \
|
|
nsDebug::Assertion(str, #expr, __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Test an assertion for truth. If the expression is not true then
|
|
* trigger a program failure. The expression will still be
|
|
* executed in release mode.
|
|
*/
|
|
#define NS_VERIFY(expr,str) \
|
|
if (!(expr)) \
|
|
nsDebug::Assertion(str, #expr, __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Test a post-condition for truth. If the expression is not true then
|
|
* trigger a program failure.
|
|
*/
|
|
#define NS_POSTCONDITION(expr,str) \
|
|
if (!(expr)) \
|
|
nsDebug::PostCondition(str, #expr, __FILE__, __LINE__)
|
|
|
|
/**
|
|
* This macros triggers a program failure if executed. It indicates that
|
|
* an attempt was made to execute some unimplimented functionality.
|
|
*/
|
|
#define NS_NOTYETIMPLEMENTED(str) \
|
|
nsDebug::NotYetImplemented(str, __FILE__, __LINE__)
|
|
|
|
/**
|
|
* This macros triggers a program failure if executed. It indicates that
|
|
* an attempt was made to execute some unimplimented functionality.
|
|
*/
|
|
#define NS_NOTREACHED(str) \
|
|
nsDebug::NotReached(str, __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Log an error message.
|
|
*/
|
|
#define NS_ERROR(str) \
|
|
nsDebug::Error(str, __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Log a warning message.
|
|
*/
|
|
#define NS_WARNING(str) \
|
|
nsDebug::Warning(str, __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Trigger an abort
|
|
*/
|
|
#define NS_ABORT() \
|
|
nsDebug::Abort(__FILE__, __LINE__)
|
|
|
|
/**
|
|
* Cause a break
|
|
*/
|
|
#define NS_BREAK() \
|
|
nsDebug::Break(__FILE__, __LINE__)
|
|
|
|
#else /* NS_DEBUG */
|
|
|
|
/**
|
|
* The non-debug version of this macro does not evaluate the
|
|
* expression or the message arguments to the macro.
|
|
*/
|
|
#define NS_ABORT_IF_FALSE(_expr,_msg) {}
|
|
|
|
/**
|
|
* Note that the non-debug version of this macro <b>does</b> evaluate
|
|
* the expression as this macro continues to return a boolean
|
|
* value.
|
|
*
|
|
* The non-debug version of this macro does <b>not</b> evaluate the
|
|
* message argument.
|
|
*/
|
|
#define NS_WARN_IF_FALSE(_e,_msg) \
|
|
(!(_e) ? PR_TRUE : PR_FALSE)
|
|
|
|
#define NS_PRECONDITION(expr,str) {}
|
|
#define NS_ASSERTION(expr,str) {}
|
|
#define NS_VERIFY(expr,str) expr
|
|
#define NS_POSTCONDITION(expr,str) {}
|
|
#define NS_NOTYETIMPLEMENTED(str) {}
|
|
#define NS_NOTREACHED(str) {}
|
|
#define NS_ERROR(str) {}
|
|
#define NS_WARNING(str) {}
|
|
#define NS_ABORT() {}
|
|
#define NS_BREAK() {}
|
|
|
|
#endif /* ! NS_DEBUG */
|
|
#endif /* __cplusplus */
|
|
#endif /* nsDebug_h___ */
|