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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.