//
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// NSObject+MJProperty.m
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// MJExtensionExample
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//
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// Created by MJ Lee on 15/4/17.
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// Copyright (c) 2015年 小码哥. All rights reserved.
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//
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#import "NSObject+MJProperty.h"
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#import "NSObject+MJKeyValue.h"
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#import "NSObject+MJCoding.h"
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#import "NSObject+MJClass.h"
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#import "MJProperty.h"
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#import "MJFoundation.h"
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#import <objc/runtime.h>
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wundeclared-selector"
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#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
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static const char MJReplacedKeyFromPropertyNameKey = '\0';
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static const char MJReplacedKeyFromPropertyName121Key = '\0';
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static const char MJNewValueFromOldValueKey = '\0';
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static const char MJObjectClassInArrayKey = '\0';
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static const char MJCachedPropertiesKey = '\0';
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@implementation NSObject (Property)
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static NSMutableDictionary *replacedKeyFromPropertyNameDict_;
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static NSMutableDictionary *replacedKeyFromPropertyName121Dict_;
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static NSMutableDictionary *newValueFromOldValueDict_;
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static NSMutableDictionary *objectClassInArrayDict_;
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static NSMutableDictionary *cachedPropertiesDict_;
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+ (void)load
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{
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replacedKeyFromPropertyNameDict_ = [NSMutableDictionary dictionary];
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replacedKeyFromPropertyName121Dict_ = [NSMutableDictionary dictionary];
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newValueFromOldValueDict_ = [NSMutableDictionary dictionary];
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objectClassInArrayDict_ = [NSMutableDictionary dictionary];
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cachedPropertiesDict_ = [NSMutableDictionary dictionary];
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}
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+ (NSMutableDictionary *)dictForKey:(const void *)key
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{
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if (key == &MJReplacedKeyFromPropertyNameKey) return replacedKeyFromPropertyNameDict_;
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if (key == &MJReplacedKeyFromPropertyName121Key) return replacedKeyFromPropertyName121Dict_;
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if (key == &MJNewValueFromOldValueKey) return newValueFromOldValueDict_;
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if (key == &MJObjectClassInArrayKey) return objectClassInArrayDict_;
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if (key == &MJCachedPropertiesKey) return cachedPropertiesDict_;
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return nil;
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}
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#pragma mark - --私有方法--
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+ (NSString *)propertyKey:(NSString *)propertyName
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{
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MJExtensionAssertParamNotNil2(propertyName, nil);
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__block NSString *key = nil;
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// 查看有没有需要替换的key
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if ([self respondsToSelector:@selector(mj_replacedKeyFromPropertyName121:)]) {
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key = [self mj_replacedKeyFromPropertyName121:propertyName];
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}
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// 兼容旧版本
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if ([self respondsToSelector:@selector(replacedKeyFromPropertyName121:)]) {
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key = [self performSelector:@selector(replacedKeyFromPropertyName121) withObject:propertyName];
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}
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// 调用block
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if (!key) {
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[self mj_enumerateAllClasses:^(__unsafe_unretained Class c, BOOL *stop) {
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MJReplacedKeyFromPropertyName121 block = objc_getAssociatedObject(c, &MJReplacedKeyFromPropertyName121Key);
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if (block) {
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key = block(propertyName);
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}
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if (key) *stop = YES;
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}];
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}
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// 查看有没有需要替换的key
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if (!key && [self respondsToSelector:@selector(mj_replacedKeyFromPropertyName)]) {
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key = [self mj_replacedKeyFromPropertyName][propertyName];
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}
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// 兼容旧版本
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if (!key && [self respondsToSelector:@selector(replacedKeyFromPropertyName)]) {
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key = [self performSelector:@selector(replacedKeyFromPropertyName)][propertyName];
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}
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if (!key) {
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[self mj_enumerateAllClasses:^(__unsafe_unretained Class c, BOOL *stop) {
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NSDictionary *dict = objc_getAssociatedObject(c, &MJReplacedKeyFromPropertyNameKey);
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if (dict) {
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key = dict[propertyName];
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}
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if (key) *stop = YES;
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}];
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}
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// 2.用属性名作为key
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if (!key) key = propertyName;
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return key;
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}
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+ (Class)propertyObjectClassInArray:(NSString *)propertyName
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{
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__block id clazz = nil;
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if ([self respondsToSelector:@selector(mj_objectClassInArray)]) {
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clazz = [self mj_objectClassInArray][propertyName];
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}
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// 兼容旧版本
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if ([self respondsToSelector:@selector(objectClassInArray)]) {
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clazz = [self performSelector:@selector(objectClassInArray)][propertyName];
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}
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if (!clazz) {
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[self mj_enumerateAllClasses:^(__unsafe_unretained Class c, BOOL *stop) {
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NSDictionary *dict = objc_getAssociatedObject(c, &MJObjectClassInArrayKey);
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if (dict) {
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clazz = dict[propertyName];
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}
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if (clazz) *stop = YES;
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}];
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}
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// 如果是NSString类型
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if ([clazz isKindOfClass:[NSString class]]) {
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clazz = NSClassFromString(clazz);
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}
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return clazz;
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}
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#pragma mark - --公共方法--
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+ (void)mj_enumerateProperties:(MJPropertiesEnumeration)enumeration
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{
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// 获得成员变量
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NSArray *cachedProperties = [self properties];
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// 遍历成员变量
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BOOL stop = NO;
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for (MJProperty *property in cachedProperties) {
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enumeration(property, &stop);
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if (stop) break;
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}
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}
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#pragma mark - 公共方法
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+ (NSMutableArray *)properties
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{
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NSMutableArray *cachedProperties = [self dictForKey:&MJCachedPropertiesKey][NSStringFromClass(self)];
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if (cachedProperties == nil) {
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cachedProperties = [NSMutableArray array];
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[self mj_enumerateClasses:^(__unsafe_unretained Class c, BOOL *stop) {
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// 1.获得所有的成员变量
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unsigned int outCount = 0;
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objc_property_t *properties = class_copyPropertyList(c, &outCount);
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// 2.遍历每一个成员变量
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for (unsigned int i = 0; i<outCount; i++) {
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MJProperty *property = [MJProperty cachedPropertyWithProperty:properties[i]];
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// 过滤掉系统自动添加的元素
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if ([property.name isEqualToString:@"hash"]
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|| [property.name isEqualToString:@"superclass"]
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|| [property.name isEqualToString:@"description"]
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|| [property.name isEqualToString:@"debugDescription"]) {
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continue;
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}
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property.srcClass = c;
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[property setOriginKey:[self propertyKey:property.name] forClass:self];
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[property setObjectClassInArray:[self propertyObjectClassInArray:property.name] forClass:self];
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[cachedProperties addObject:property];
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}
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// 3.释放内存
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free(properties);
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}];
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[self dictForKey:&MJCachedPropertiesKey][NSStringFromClass(self)] = cachedProperties;
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}
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return cachedProperties;
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}
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#pragma mark - 新值配置
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+ (void)mj_setupNewValueFromOldValue:(MJNewValueFromOldValue)newValueFormOldValue
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{
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objc_setAssociatedObject(self, &MJNewValueFromOldValueKey, newValueFormOldValue, OBJC_ASSOCIATION_COPY_NONATOMIC);
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}
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+ (id)mj_getNewValueFromObject:(__unsafe_unretained id)object oldValue:(__unsafe_unretained id)oldValue property:(MJProperty *__unsafe_unretained)property{
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// 如果有实现方法
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if ([object respondsToSelector:@selector(mj_newValueFromOldValue:property:)]) {
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return [object mj_newValueFromOldValue:oldValue property:property];
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}
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// 兼容旧版本
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if ([self respondsToSelector:@selector(newValueFromOldValue:property:)]) {
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return [self performSelector:@selector(newValueFromOldValue:property:) withObject:oldValue withObject:property];
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}
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// 查看静态设置
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__block id newValue = oldValue;
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[self mj_enumerateAllClasses:^(__unsafe_unretained Class c, BOOL *stop) {
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MJNewValueFromOldValue block = objc_getAssociatedObject(c, &MJNewValueFromOldValueKey);
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if (block) {
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newValue = block(object, oldValue, property);
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*stop = YES;
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}
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}];
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return newValue;
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}
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#pragma mark - array model class配置
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+ (void)mj_setupObjectClassInArray:(MJObjectClassInArray)objectClassInArray
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{
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[self mj_setupBlockReturnValue:objectClassInArray key:&MJObjectClassInArrayKey];
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[[self dictForKey:&MJCachedPropertiesKey] removeAllObjects];
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}
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#pragma mark - key配置
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+ (void)mj_setupReplacedKeyFromPropertyName:(MJReplacedKeyFromPropertyName)replacedKeyFromPropertyName
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{
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[self mj_setupBlockReturnValue:replacedKeyFromPropertyName key:&MJReplacedKeyFromPropertyNameKey];
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[[self dictForKey:&MJCachedPropertiesKey] removeAllObjects];
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}
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+ (void)mj_setupReplacedKeyFromPropertyName121:(MJReplacedKeyFromPropertyName121)replacedKeyFromPropertyName121
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{
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objc_setAssociatedObject(self, &MJReplacedKeyFromPropertyName121Key, replacedKeyFromPropertyName121, OBJC_ASSOCIATION_COPY_NONATOMIC);
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[[self dictForKey:&MJCachedPropertiesKey] removeAllObjects];
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}
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@end
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@implementation NSObject (MJPropertyDeprecated_v_2_5_16)
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+ (void)enumerateProperties:(MJPropertiesEnumeration)enumeration
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{
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[self mj_enumerateProperties:enumeration];
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}
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+ (void)setupNewValueFromOldValue:(MJNewValueFromOldValue)newValueFormOldValue
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{
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[self mj_setupNewValueFromOldValue:newValueFormOldValue];
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}
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+ (id)getNewValueFromObject:(__unsafe_unretained id)object oldValue:(__unsafe_unretained id)oldValue property:(__unsafe_unretained MJProperty *)property
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{
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return [self mj_getNewValueFromObject:object oldValue:oldValue property:property];
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}
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+ (void)setupReplacedKeyFromPropertyName:(MJReplacedKeyFromPropertyName)replacedKeyFromPropertyName
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{
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[self mj_setupReplacedKeyFromPropertyName:replacedKeyFromPropertyName];
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}
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+ (void)setupReplacedKeyFromPropertyName121:(MJReplacedKeyFromPropertyName121)replacedKeyFromPropertyName121
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{
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[self mj_setupReplacedKeyFromPropertyName121:replacedKeyFromPropertyName121];
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}
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+ (void)setupObjectClassInArray:(MJObjectClassInArray)objectClassInArray
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{
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[self mj_setupObjectClassInArray:objectClassInArray];
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}
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@end
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#pragma clang diagnostic pop
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