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316 lines
15 KiB
316 lines
15 KiB
/**
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Copyright 2018 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at:
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#import "FBLPromise.h"
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NS_ASSUME_NONNULL_BEGIN
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/**
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Different types of completion handlers available to be wrapped with promise.
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*/
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typedef void (^FBLPromiseCompletion)(void) NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromiseObjectCompletion)(id __nullable) NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromiseErrorCompletion)(NSError* __nullable) NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromiseObjectOrErrorCompletion)(id __nullable, NSError* __nullable)
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NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromiseErrorOrObjectCompletion)(NSError* __nullable, id __nullable)
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NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromise2ObjectsOrErrorCompletion)(id __nullable, id __nullable,
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NSError* __nullable) NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromiseBoolCompletion)(BOOL) NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromiseBoolOrErrorCompletion)(BOOL, NSError* __nullable) NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromiseIntegerCompletion)(NSInteger) NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromiseIntegerOrErrorCompletion)(NSInteger, NSError* __nullable)
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NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromiseDoubleCompletion)(double) NS_SWIFT_UNAVAILABLE("");
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typedef void (^FBLPromiseDoubleOrErrorCompletion)(double, NSError* __nullable)
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NS_SWIFT_UNAVAILABLE("");
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/**
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Provides an easy way to convert methods that use common callback patterns into promises.
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*/
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@interface FBLPromise<Value>(WrapAdditions)
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with `nil` when completion handler is invoked.
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*/
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+ (instancetype)wrapCompletion:(void (^)(FBLPromiseCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with `nil` when completion handler is invoked.
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*/
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+ (instancetype)onQueue:(dispatch_queue_t)queue
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wrapCompletion:(void (^)(FBLPromiseCompletion handler))work NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an object provided by completion handler.
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*/
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+ (instancetype)wrapObjectCompletion:(void (^)(FBLPromiseObjectCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an object provided by completion handler.
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*/
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+ (instancetype)onQueue:(dispatch_queue_t)queue
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wrapObjectCompletion:(void (^)(FBLPromiseObjectCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an error provided by completion handler.
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If error is `nil`, fulfills with `nil`, otherwise rejects with the error.
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*/
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+ (instancetype)wrapErrorCompletion:(void (^)(FBLPromiseErrorCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an error provided by completion handler.
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If error is `nil`, fulfills with `nil`, otherwise rejects with the error.
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*/
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+ (instancetype)onQueue:(dispatch_queue_t)queue
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wrapErrorCompletion:(void (^)(FBLPromiseErrorCompletion handler))work NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an object provided by completion handler if error is `nil`.
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Otherwise, rejects with the error.
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*/
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+ (instancetype)wrapObjectOrErrorCompletion:
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(void (^)(FBLPromiseObjectOrErrorCompletion handler))work NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an object provided by completion handler if error is `nil`.
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Otherwise, rejects with the error.
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*/
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+ (instancetype)onQueue:(dispatch_queue_t)queue
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wrapObjectOrErrorCompletion:(void (^)(FBLPromiseObjectOrErrorCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an error or object provided by completion handler. If error
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is not `nil`, rejects with the error.
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*/
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+ (instancetype)wrapErrorOrObjectCompletion:
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(void (^)(FBLPromiseErrorOrObjectCompletion handler))work NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an error or object provided by completion handler. If error
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is not `nil`, rejects with the error.
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*/
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+ (instancetype)onQueue:(dispatch_queue_t)queue
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wrapErrorOrObjectCompletion:(void (^)(FBLPromiseErrorOrObjectCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an array of objects provided by completion handler in order
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if error is `nil`. Otherwise, rejects with the error.
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*/
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+ (FBLPromise<NSArray*>*)wrap2ObjectsOrErrorCompletion:
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(void (^)(FBLPromise2ObjectsOrErrorCompletion handler))work NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an array of objects provided by completion handler in order
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if error is `nil`. Otherwise, rejects with the error.
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*/
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+ (FBLPromise<NSArray*>*)onQueue:(dispatch_queue_t)queue
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wrap2ObjectsOrErrorCompletion:(void (^)(FBLPromise2ObjectsOrErrorCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping YES/NO.
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*/
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+ (FBLPromise<NSNumber*>*)wrapBoolCompletion:(void (^)(FBLPromiseBoolCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping YES/NO.
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*/
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+ (FBLPromise<NSNumber*>*)onQueue:(dispatch_queue_t)queue
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wrapBoolCompletion:(void (^)(FBLPromiseBoolCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping YES/NO when error is `nil`.
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Otherwise rejects with the error.
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*/
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+ (FBLPromise<NSNumber*>*)wrapBoolOrErrorCompletion:
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(void (^)(FBLPromiseBoolOrErrorCompletion handler))work NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping YES/NO when error is `nil`.
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Otherwise rejects with the error.
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*/
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+ (FBLPromise<NSNumber*>*)onQueue:(dispatch_queue_t)queue
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wrapBoolOrErrorCompletion:(void (^)(FBLPromiseBoolOrErrorCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping an integer.
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*/
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+ (FBLPromise<NSNumber*>*)wrapIntegerCompletion:(void (^)(FBLPromiseIntegerCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping an integer.
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*/
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+ (FBLPromise<NSNumber*>*)onQueue:(dispatch_queue_t)queue
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wrapIntegerCompletion:(void (^)(FBLPromiseIntegerCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping an integer when error is `nil`.
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Otherwise rejects with the error.
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*/
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+ (FBLPromise<NSNumber*>*)wrapIntegerOrErrorCompletion:
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(void (^)(FBLPromiseIntegerOrErrorCompletion handler))work NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping an integer when error is `nil`.
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Otherwise rejects with the error.
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*/
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+ (FBLPromise<NSNumber*>*)onQueue:(dispatch_queue_t)queue
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wrapIntegerOrErrorCompletion:(void (^)(FBLPromiseIntegerOrErrorCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping a double.
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*/
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+ (FBLPromise<NSNumber*>*)wrapDoubleCompletion:(void (^)(FBLPromiseDoubleCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping a double.
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*/
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+ (FBLPromise<NSNumber*>*)onQueue:(dispatch_queue_t)queue
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wrapDoubleCompletion:(void (^)(FBLPromiseDoubleCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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/**
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping a double when error is `nil`.
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Otherwise rejects with the error.
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*/
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+ (FBLPromise<NSNumber*>*)wrapDoubleOrErrorCompletion:
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(void (^)(FBLPromiseDoubleOrErrorCompletion handler))work NS_SWIFT_UNAVAILABLE("");
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/**
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@param queue A queue to invoke the `work` block on.
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@param work A block to perform any operations needed to resolve the promise.
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@returns A promise that resolves with an `NSNumber` wrapping a double when error is `nil`.
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Otherwise rejects with the error.
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*/
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+ (FBLPromise<NSNumber*>*)onQueue:(dispatch_queue_t)queue
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wrapDoubleOrErrorCompletion:(void (^)(FBLPromiseDoubleOrErrorCompletion handler))work
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NS_SWIFT_UNAVAILABLE("");
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@end
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/**
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Convenience dot-syntax wrappers for `FBLPromise` `wrap` operators.
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Usage: FBLPromise.wrapCompletion(^(FBLPromiseCompletion handler) {...})
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*/
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@interface FBLPromise<Value>(DotSyntax_WrapAdditions)
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+ (FBLPromise* (^)(void (^)(FBLPromiseCompletion)))wrapCompletion FBL_PROMISES_DOT_SYNTAX
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NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise* (^)(dispatch_queue_t, void (^)(FBLPromiseCompletion)))wrapCompletionOn
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise* (^)(void (^)(FBLPromiseObjectCompletion)))wrapObjectCompletion
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise* (^)(dispatch_queue_t, void (^)(FBLPromiseObjectCompletion)))wrapObjectCompletionOn
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise* (^)(void (^)(FBLPromiseErrorCompletion)))wrapErrorCompletion FBL_PROMISES_DOT_SYNTAX
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NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise* (^)(dispatch_queue_t, void (^)(FBLPromiseErrorCompletion)))wrapErrorCompletionOn
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise* (^)(void (^)(FBLPromiseObjectOrErrorCompletion)))wrapObjectOrErrorCompletion
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise* (^)(dispatch_queue_t,
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void (^)(FBLPromiseObjectOrErrorCompletion)))wrapObjectOrErrorCompletionOn
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise* (^)(void (^)(FBLPromiseErrorOrObjectCompletion)))wrapErrorOrObjectCompletion
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise* (^)(dispatch_queue_t,
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void (^)(FBLPromiseErrorOrObjectCompletion)))wrapErrorOrObjectCompletionOn
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSArray*>* (^)(void (^)(FBLPromise2ObjectsOrErrorCompletion)))
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wrap2ObjectsOrErrorCompletion FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSArray*>* (^)(dispatch_queue_t, void (^)(FBLPromise2ObjectsOrErrorCompletion)))
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wrap2ObjectsOrErrorCompletionOn FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(void (^)(FBLPromiseBoolCompletion)))wrapBoolCompletion
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(dispatch_queue_t,
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void (^)(FBLPromiseBoolCompletion)))wrapBoolCompletionOn
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(void (^)(FBLPromiseBoolOrErrorCompletion)))wrapBoolOrErrorCompletion
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(dispatch_queue_t,
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void (^)(FBLPromiseBoolOrErrorCompletion)))wrapBoolOrErrorCompletionOn
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(void (^)(FBLPromiseIntegerCompletion)))wrapIntegerCompletion
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(dispatch_queue_t,
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void (^)(FBLPromiseIntegerCompletion)))wrapIntegerCompletionOn
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(void (^)(FBLPromiseIntegerOrErrorCompletion)))
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wrapIntegerOrErrorCompletion FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(dispatch_queue_t, void (^)(FBLPromiseIntegerOrErrorCompletion)))
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wrapIntegerOrErrorCompletionOn FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(void (^)(FBLPromiseDoubleCompletion)))wrapDoubleCompletion
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(dispatch_queue_t,
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void (^)(FBLPromiseDoubleCompletion)))wrapDoubleCompletionOn
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FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(void (^)(FBLPromiseDoubleOrErrorCompletion)))
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wrapDoubleOrErrorCompletion FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise<NSNumber*>* (^)(dispatch_queue_t, void (^)(FBLPromiseDoubleOrErrorCompletion)))
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wrapDoubleOrErrorCompletionOn FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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@end
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NS_ASSUME_NONNULL_END
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