| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * Licensed 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 "GRXWriter.h" |
| |
| @interface GRXWriter (Immediate) |
| |
| /** |
| * Returns a writer that pulls values from the passed NSEnumerator instance and pushes them to |
| * its writeable. The NSEnumerator is released when it finishes. |
| */ |
| + (instancetype)writerWithEnumerator:(NSEnumerator *)enumerator; |
| |
| /** |
| * Returns a writer that pushes to its writeable the successive values returned by the passed |
| * block. When the block first returns nil, it is released. |
| */ |
| + (instancetype)writerWithValueSupplier:(id (^)(void))block; |
| |
| /** |
| * Returns a writer that iterates over the values of the passed container and pushes them to |
| * its writeable. The container is released when the iteration is over. |
| * |
| * Note that the usual speed gain of NSFastEnumeration over NSEnumerator results from not having to |
| * call one method per element. Because GRXWriteable instances accept values one by one, that speed |
| * gain doesn't happen here. |
| */ |
| + (instancetype)writerWithContainer:(id<NSFastEnumeration>)container; |
| |
| /** |
| * Returns a writer that sends the passed value to its writeable and then finishes (releasing the |
| * value). |
| */ |
| + (instancetype)writerWithValue:(id)value; |
| |
| /** |
| * Returns a writer that, as part of its start method, sends the passed error to the writeable |
| * (then releasing the error). |
| */ |
| + (instancetype)writerWithError:(NSError *)error; |
| |
| /** |
| * Returns a writer that, as part of its start method, finishes immediately without sending any |
| * values to its writeable. |
| */ |
| + (instancetype)emptyWriter; |
| |
| @end |