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 "NSEnumerator+GRXUtil.h" 20 21#import "private/GRXNSBlockEnumerator.h" 22#import "private/GRXNSFastEnumerator.h" 23#import "private/GRXNSScalarEnumerator.h" 24 25@implementation NSEnumerator (GRXUtil) 26 27+ (NSEnumerator *)grx_enumeratorWithContainer:(id<NSFastEnumeration>)container { 28 // TODO(jcanizales): Consider checking if container responds to objectEnumerator and return that? 29 return [[GRXNSFastEnumerator alloc] initWithContainer:container]; 30} 31 32+ (NSEnumerator *)grx_enumeratorWithSingleValue:(id)value { 33 return [[GRXNSScalarEnumerator alloc] initWithValue:value]; 34} 35 36+ (NSEnumerator *)grx_enumeratorWithValueSupplier:(id (^)(void))block { 37 return [[GRXNSBlockEnumerator alloc] initWithValueSupplier:block]; 38} 39@end 40