用runtime序列化的宏

#define WZLSERIALIZE_CODER_DECODER()     \
\
- (id)initWithCoder:(NSCoder *)coder    \
{   \
NSLog(@"%s",__func__);  \
Class cls = [self class];   \
while (cls != [NSObject class]) {   \
/*判断是自身类还是父类*/    \
BOOL bIsSelfClass = (cls == [self class]);  \
unsigned int iVarCount = 0; \
unsigned int propVarCount = 0;  \
unsigned int sharedVarCount = 0;    \
Ivar *ivarList = bIsSelfClass ? class_copyIvarList([cls class], &iVarCount) : NULL;/*变量列表，含属性以及私有变量*/   \
objc_property_t *propList = bIsSelfClass ? NULL : class_copyPropertyList(cls, &propVarCount);/*属性列表*/   \
sharedVarCount = bIsSelfClass ? iVarCount : propVarCount;   \
\
for (int i = 0; i < sharedVarCount; i++) {  \
const char *varName = bIsSelfClass ? ivar_getName(*(ivarList + i)) : property_getName(*(propList + i)); \
NSString *key = [NSString stringWithUTF8String:varName];   \
id varValue = [coder decodeObjectForKey:key];   \
NSArray *filters = @[@"superclass", @"description", @"debugDescription", @"hash"]; \
if (varValue && [filters containsObject:key] == NO) { \
[self setValue:varValue forKey:key];    \
}   \
}   \
free(ivarList); \
free(propList); \
cls = class_getSuperclass(cls); \
}   \
return self;    \
}   \
\
- (void)encodeWithCoder:(NSCoder *)coder    \
{   \
NSLog(@"%s",__func__);  \
Class cls = [self class];   \
while (cls != [NSObject class]) {   \
/*判断是自身类还是父类*/    \
BOOL bIsSelfClass = (cls == [self class]);  \
unsigned int iVarCount = 0; \
unsigned int propVarCount = 0;  \
unsigned int sharedVarCount = 0;    \
Ivar *ivarList = bIsSelfClass ? class_copyIvarList([cls class], &iVarCount) : NULL;/*变量列表，含属性以及私有变量*/   \
objc_property_t *propList = bIsSelfClass ? NULL : class_copyPropertyList(cls, &propVarCount);/*属性列表*/ \
sharedVarCount = bIsSelfClass ? iVarCount : propVarCount;   \
\
for (int i = 0; i < sharedVarCount; i++) {  \
const char *varName = bIsSelfClass ? ivar_getName(*(ivarList + i)) : property_getName(*(propList + i)); \
NSString *key = [NSString stringWithUTF8String:varName];    \
/*valueForKey只能获取本类所有变量以及所有层级父类的属性，不包含任何父类的私有变量(会崩溃)*/  \
id varValue = [self valueForKey:key];   \
NSArray *filters = @[@"superclass", @"description", @"debugDescription", @"hash"]; \
if (varValue && [filters containsObject:key] == NO) { \
[coder encodeObject:varValue forKey:key];   \
}   \
}   \
free(ivarList); \
free(propList); \
cls = class_getSuperclass(cls); \
}   \
}