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/*
NSException.m
Copyright (C) 1995, 1996 Ovidiu Predescu and Mircea Oancea.
All rights reserved.
Author: Ovidiu Predescu <ovidiu@bx.logicnet.ro>
This file is part of libFoundation.
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, provided
that the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.
We disclaim all warranties with regard to this software, including all
implied warranties of merchantability and fitness, in no event shall
we be liable for any special, indirect or consequential damages or any
damages whatsoever resulting from loss of use, data or profits, whether in
an action of contract, negligence or other tortious action, arising out of
or in connection with the use or performance of this software.
*/
#include <config.h>
#ifdef HAVE_LIBC_H
# include <libc.h>
#else /* GNU CC comes with unistd.h */
# include <unistd.h>
#endif
#if HAVE_STRING_H
# include <string.h>
#endif
#if HAVE_MEMORY_H
# include <memory.h>
#endif
#if HAVE_STDLIB_H
#include <stdlib.h>
#else
extern char* getenv(char*);
#endif
#include <Foundation/common.h>
#include <Foundation/NSException.h>
#include <Foundation/NSArray.h>
#include <Foundation/NSDictionary.h>
#include <Foundation/exceptions/GeneralExceptions.h>
static void default_handler(NSException* exception)
{
NSLog ([exception errorString]);
if(getenv("CRASH_WITH_ABORT"))
abort();
else exit(1);
}
#ifdef BROKEN_COMPILER
static NSUncaughtExceptionHandler* uncaughtHandler = default_handler;
#endif
static NSHandler firstExceptionHandler;
static NSHandler* lastHandler = NULL;
void _NSAddHandler(NSHandler *exHandler)
{
if(!lastHandler) {
/* We were called for the first time. */
lastHandler = &firstExceptionHandler;
firstExceptionHandler.previousHandler = NULL;
memset(&(firstExceptionHandler.jmpState), 0, sizeof(jmp_buf));
#ifndef BROKEN_COMPILER
firstExceptionHandler.handler = default_handler;
#endif
}
exHandler->previousHandler = lastHandler;
lastHandler = exHandler;
}
void _NSRemoveHandler(NSHandler *handler)
{
lastHandler = lastHandler->previousHandler;
}
@implementation NSException
+ (void)initialize
{
static BOOL initialized = NO;
if(!initialized) {
initialized = YES;
[NSAssertionHandler initialize];
}
}
+ (void)taskNowMultiThreaded:notification
{
// THREAD
}
+ (NSException*)exceptionWithName:(NSString*)_name
reason:(NSString*)_reason
userInfo:(NSDictionary*)_userInfo
{
return [[self alloc] initWithName:_name reason:_reason userInfo:_userInfo];
}
+ (void)raise:(NSString*)_name
format:(NSString*)_format,...
{
va_list ap;
va_start(ap, _format);
[self raise:_name format:_format arguments:ap];
va_end(ap);
}
+ (void)raise:(NSString*)_name
format:(NSString*)_format
arguments:(va_list)argList
{
NSException* exception = [self exceptionWithName:_name
reason:Avsprintf(_format, argList)
userInfo:nil];
[exception raise];
}
- (id)initWithName:(NSString*)_name
reason:(NSString*)_reason
userInfo:(NSDictionary*)_userInfo
{
name = [_name retain];
reason = [_reason retain];
userInfo = [_userInfo retain];
return self;
}
- (void)raise
{
NSHandler* ex = lastHandler;
if(!ex) {
fprintf (stderr, "Uncaught exception %s\n",
[[self errorString] cString]);
abort();
}
#ifdef BROKEN_COMPILER
if(!ex->previousHandler)
uncaughtHandler(self);
else {
ex->exception = self;
longjmp(ex->jmpState, 1);
}
#else
(lastHandler->handler)(self);
#endif
}
- (void)dealloc
{
[name release];
[reason release];
[userInfo release];
}
- (NSString*)name
{
return name ? name : NSStringFromClass(isa);
}
- (NSString*)reason { return reason; }
- (NSDictionary*)userInfo { return userInfo; }
- (NSString*)descriptionWithLocale:(NSDictionary*)locale
{
return [NSString stringWithFormat:
@"(Exception name:%@ class:%@ reason:%@ info:%@)",
name ? name : @"<nil>",
NSStringFromClass(isa),
reason ? reason : @"<nil>",
userInfo ? [userInfo descriptionWithLocale:locale] : @"<nil>"];
}
- (NSString*)description
{
return [self descriptionWithLocale:nil];
}
@end /* NSException */
@implementation NSException (Extensions)
- (BOOL)exceptionIsKindOfClass:(Class)class
{
return [self isKindOfClass:class];
}
- (BOOL)exceptionIsIn:(NSArray*)exceptions
{
int i, n = [exceptions count];
for(i = 0; i < n; i++)
if([self exceptionIsKindOfClass:[[exceptions objectAtIndex:i] class]])
return YES;
return NO;
}
- (NSString*)errorString
{
/* Don't use -[NSString stringWithFormat:] method because it can cause
infinite recursion. */
char buffer[512];
sprintf (buffer, "exceptionClass %s\nReason: %s\n",
[[[self class] description] cString],
([self reason] ? [[self reason] cString] : "null reason"));
return [NSString stringWithCString:buffer];
}
- initWithFormat:(NSString*)format, ...
{
va_list ap;
va_start(ap, format);
reason = [[NSString alloc] initWithFormat:format arguments:ap];
va_end(ap);
return self;
}
- initWithFormat:(NSString*)format arguments:(va_list)ap
{
reason = [[NSString alloc] initWithFormat:format arguments:ap];
return self;
}
- setName:(NSString*)_name
{
[_name retain];
[name release];
name = _name;
return self;
}
- setReason:(NSString*)_reason
{
[_reason retain];
[reason release];
reason = _reason;
return self;
}
- setUserInfo:(NSDictionary*)_userInfo
{
[_userInfo retain];
[userInfo release];
userInfo = _userInfo;
return self;
}
@end /* NSException (Extensions) */
NSString *NSInconsistentArchiveException = @"Archive is inconsistent";
NSString *NSGenericException = @"Generic exception";
NSString *NSInternalInconsistencyException = @"Internal inconsistency";
NSString *NSInvalidArgumentException = @"Invalid argument";
NSString *NSMallocException = @"Memory exhausted";
NSString *NSRangeException = @"Range exception";
NSUncaughtExceptionHandler *NSGetUncaughtExceptionHandler(void)
{
#ifdef BROKEN_COMPILER
return uncaughtHandler;
#else
return firstExceptionHandler.handler;
#endif
}
void NSSetUncaughtExceptionHandler(NSUncaughtExceptionHandler *handler)
{
#ifdef BROKEN_COMPILER
uncaughtHandler = handler;
#else
firstExceptionHandler.handler = handler;
#endif
}
/*
* Assertions.
*/
@implementation NSAssertionHandler
static id currentHandler = nil;
+ (void)initialize
{
static BOOL initialized = NO;
if(!initialized) {
initialized = YES;
currentHandler = [[self alloc] init];
[NSException initialize];
}
}
+ (NSAssertionHandler*)currentHandler
{
return currentHandler;
}
- (void)handleFailureInFunction:(NSString*)functionName
file:(NSString*)fileName
lineNumber:(int)line
description:(NSString*)format,...
{
va_list ap;
va_start(ap, format);
NSLog(@"Assertion failed in file %@, line %d, function %@:",
fileName, line, functionName);
NSLogv(format, ap);
THROW([[AssertException alloc] initWithFormat:format arguments:ap]);
va_end(ap);
}
- (void)handleFailureInMethod:(SEL)selector
object:(id)object
file:(NSString*)fileName
lineNumber:(int)line
description:(NSString*)format,...
{
va_list ap;
va_start(ap, format);
NSLog(@"Assertion failed in file %@, line %d, method %@:",
fileName, line, NSStringFromSelector(selector));
NSLogv(format, ap);
THROW([[AssertException alloc] initWithFormat:format arguments:ap]);
va_end(ap);
}
@end /* NSAssertionHandler */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.