我的程序可视化并绘制模拟神经元的电流以及它们如何相互作用。当我们尝试添加两个以上的神经元以进行 2/3 次可视化时,程序崩溃并在行上出现 EXC_BAD_INSTRUCTION 错误,该错误应该显示一个可以设置单个神经元参数的窗口。
我曾尝试打开 Zombie Objects 以获取更多信息,但随后程序不再崩溃,因此我无法获得更多信息。这个问题显然是一个僵尸对象问题,我只是不知道如何解决它。
- (IBAction) showParameterSetterWindow:(id)sender
{
if (parameterSetter == nil)
{
ParameterSetter *newParameterSetter = [[ParameterSetter alloc] initWithDefaultWindowNib];
[self setParameterSetter:newParameterSetter];
}
[[self parameterSetter].window orderFront:self]; //Error appears here
} // showSynapseWindow
每个位置的错误是:
Thread 1: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
在调试窗口中打印:
019-08-05 15:15:04.306293-0400 RoboLobsterSimu[1680:175553] Parameter Setter AwakeFromNIB completed RoboLobsterSimu(1680,0x10013e5c0) malloc: Heap corruption detected, free list is damaged at 0x60001412b1f0 *** Incorrect guard value: 3 RoboLobsterSimu(1680,0x10013e5c0) malloc: *** set a breakpoint in malloc_error_break to debug RoboLobsterSimu(1680,0x10013e5c0) malloc: Heap corruption detected, free list is damaged at 0x600014128020 *** Incorrect guard value: 13830554455654793216 RoboLobsterSimu(1680,0x10013e5c0) malloc: *** set a breakpoint in malloc_error_break to debug warning: could not execute support code to read Objective-C class data in the process. This may reduce the quality of type information available.
如果您需要更多信息来解决问题,请告诉我,谢谢!这是我被要求添加的代码段。非常感谢!
这是 initWithDefaultWindowNib
- (id)initWithDefaultWindowNib
{
/* AnalysisWindowController *awc;
awc = [super initWithWindowNibName:@"AnalysisWindowController"];
if (!awc)
{
NSLog(@"Warning! Could not load AnalysisWindowController file.\n");
}
else
{
NSLog(@"AnalysisWindowController Nib Loaded");
[awc logAnalysisWindowController];
}
return awc;
*/
if (!self){
self = [super initWithWindowNibName:@"AnalysisWindowController"];
if (self)
{
[self logAnalysisWindowController];
}
else
{
NSLog(@"Warning! Could not load AnalysisWindowController nib.\n");
}
}
return self;
}
它也在另一个文件中被调用,如下所示:
- (id)initWithDefaultWindowNib
{
if (!self){
self = [super initWithWindowNibName:@"ParameterSetter"];
if (self)
{
NSLog(@"Executing InitWithDefaultWIndowNib in Parameter Setter");
}
else
{
NSLog(@"Warning! Could not load ParameterSetter nib.\n");
}
}
return self;
}
对于 setParameterSetter,教授说“这就是综合运算符所做的。它创建了一个 setter 和 getter。setParameterSetter 被创建为 ParameterSetter 的 setter。ParameterSetter 是 getter”
无论哪种方式,这里都是 parameterSetter:
@property (nonatomic, strong) ParameterSetter *parameterSetter;
- (ParameterSetter *)parameterSetter
{
if (parameterSetter == nil)
{
ParameterSetter *newParameterSetter = [[ParameterSetter alloc] initWithDefaultWindowNib];
[self setParameterSetter:newParameterSetter];
}
return parameterSetter;
}
再次感谢