//
//  RQKeyedSubscript.m
//  RQCommon
//
//  Created by 张嵘 on 2018/11/16.
//  Copyright © 2018 张嵘. All rights reserved.
//  参数

#import "RQKeyedSubscript.h"

@interface RQKeyedSubscript ()
/// 字典
@property (nonatomic, readwrite, strong) NSMutableDictionary *kvs;
@end


@implementation RQKeyedSubscript

+ (instancetype) subscript {
	return [[self alloc] init];
}

+ (instancetype) subscriptWithDictionary:(NSDictionary *) dict {
	return [[self alloc] initWithDictionary:dict];
}

- (instancetype)init {
	self = [super init];
	if (self) {
		self.kvs = [NSMutableDictionary dictionary];
	}
	return self;
}

- (instancetype)initWithDictionary:(NSDictionary *)dict {
	self = [super init];
	if (self) {
		self.kvs = [NSMutableDictionary dictionary];
		if ([dict count]) {
			[self.kvs addEntriesFromDictionary:dict];
		}
	}
	return self;
}

- (id)objectForKeyedSubscript:(id)key {
	return key ? [self.kvs objectForKey:key] : nil;
}

- (void)setObject:(id)obj forKeyedSubscript:(id <NSCopying>)key {
	
	if (key) {
		if (obj) {
			[self.kvs setObject:obj forKey:key];
		} else {
			[self.kvs removeObjectForKey:key];
		}
	}
}

- (NSDictionary *)dictionary {
	return self.kvs.copy;
}

@end