ACTracingAdvice.m

/*
* Copyright (c) 2006 Jacob Burkhart (JacobBurkhart@gmail.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/

#import "ACTracingAdvice.h"
#import </usr/include/objc/objc-class.h>

@implementation ACTracingAdvice

- (id)init{
    self = [super init];
    if (self){
        indent = [@"" retain];
	trace = [NSMutableArray new];
    }
    return self;
}

-(void)push:(NSString*)string{
    [trace insertObject: string atIndex: 0];
    if([trace count] > 100){
	[trace removeLastObject];
    }
}

- (void)dealloc{
    [indent release];
    [super dealloc];
}

-(void)before:(ACInvocation *)invocation{
    [self push: [NSString stringWithFormat: @"%@before %s on %s",indent, [invocation selector], [invocation getClass]->name]];

    NSString * newIndent = [NSString stringWithFormat: @"-%@",indent];
    [indent release];
    indent = [newIndent retain];
}

-(void)after:(ACInvocation  *)invocation{
    NSString * newIndent = [indent substringFromIndex: 1];
    [indent release];
    indent = [newIndent retain];
    
    [self push: [NSString stringWithFormat: @"%@after %s on %s",indent, [invocation selector], [invocation getClass]->name]];
}

-(void)printTrace{
    id revenum = [trace reverseObjectEnumerator];
    id eachTrace;
    while(eachTrace = [revenum nextObject])
	NSLog(@"%@",eachTrace);
}

@end