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55 lines
1.7 KiB
55 lines
1.7 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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@interface FBLPromise<Value>(DoAdditions)
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typedef id __nullable (^FBLPromiseDoWorkBlock)(void) NS_SWIFT_UNAVAILABLE("");
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/**
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Creates a pending promise and executes `work` block asynchronously.
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@param work A block that returns a value or an error used to resolve the promise.
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@return A new pending promise.
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*/
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+ (instancetype)do:(FBLPromiseDoWorkBlock)work NS_SWIFT_UNAVAILABLE("");
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/**
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Creates a pending promise and executes `work` block asynchronously on the given queue.
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@param queue A queue to invoke the `work` block on.
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@param work A block that returns a value or an error used to resolve the promise.
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@return A new pending promise.
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*/
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+ (instancetype)onQueue:(dispatch_queue_t)queue do:(FBLPromiseDoWorkBlock)work NS_REFINED_FOR_SWIFT;
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@end
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/**
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Convenience dot-syntax wrappers for `FBLPromise` `do` operators.
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Usage: FBLPromise.doOn(queue, ^(NSError *error) { ... })
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*/
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@interface FBLPromise<Value>(DotSyntax_DoAdditions)
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+ (FBLPromise * (^)(dispatch_queue_t, FBLPromiseDoWorkBlock))doOn FBL_PROMISES_DOT_SYNTAX
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NS_SWIFT_UNAVAILABLE("");
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@end
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NS_ASSUME_NONNULL_END
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