ios/Pods/WeexSDK/ios/sdk/WeexSDK/Sources/Bridge/WXPolyfillSet.m

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

#import "WXPolyfillSet.h"

@implementation WXPolyfillSet
{
    NSMutableSet *_set;
}

+ (instancetype)create
{
    WXPolyfillSet *jsSet = [WXPolyfillSet new];
    jsSet->_set = [NSMutableSet set];
    return jsSet;
}

- (BOOL)has:(id)value
{
    return [_set containsObject:value];
}

- (NSUInteger)size
{
    return _set.count;
}

- (void)add:(id)value
{
    [_set addObject:value];
}

- (BOOL)delete:(id)value
{
    if ([_set containsObject:value]) {
        [_set removeObject:value];
        return YES;
    }
    
    return NO;
}

- (void)clear
{
    [_set removeAllObjects];
}

@end