1 /* 2 * 3 * Copyright 2015 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #import <Foundation/Foundation.h> 20 21 /** Concrete subclass of NSEnumerator whose instances return a single object before finishing. */ 22 @interface GRXNSScalarEnumerator : NSEnumerator 23 /** 24 * Param value: the single object this instance will produce. After the first invocation of 25 * nextObject, the value is released. 26 */ 27 - (instancetype)initWithValue:(id)value; 28 @end 29