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Add Future on asynchronous functions
- Add podspec subspec for Future - Add Future example in readme
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| // | ||
| // Future.swift | ||
| // Erik | ||
| /* | ||
| The MIT License (MIT) | ||
| Copyright (c) 2015 Eric Marchand (phimage) | ||
| Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| of this software and associated documentation files (the "Software"), to deal | ||
| in the Software without restriction, including without limitation the rights | ||
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| copies of the Software, and to permit persons to whom the Software is | ||
| furnished to do so, subject to the following conditions: | ||
| The above copyright notice and this permission notice shall be included in all | ||
| copies or substantial portions of the Software. | ||
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| SOFTWARE. | ||
| */ | ||
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| import Foundation | ||
| import BrightFutures | ||
| import Result | ||
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| extension Erik { | ||
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| public func visitURLFuture(url: NSURL) -> Future<Document, NSError> { | ||
| let promise = Promise<Document, NSError>() | ||
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| self.visitURL(url) { (obj, err) -> Void in | ||
| if let document = obj { | ||
| promise.success(document) | ||
| } | ||
| else if let error = err { | ||
| promise.failure(error as NSError) | ||
| } | ||
| } | ||
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| return promise.future | ||
| } | ||
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| public func currentContentFuture() -> Future<Document, NSError> { | ||
| let promise = Promise<Document, NSError>() | ||
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| self.currentContent { (obj, err) -> Void in | ||
| if let document = obj { | ||
| promise.success(document) | ||
| } | ||
| else if let error = err { | ||
| promise.failure(error as NSError) | ||
| } | ||
| } | ||
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| return promise.future | ||
| } | ||
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| public func evaluateJavaScriptFuture(javaScriptString: String) -> Future<AnyObject?, NSError> { | ||
| let promise = Promise<AnyObject?, NSError>() | ||
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| self.evaluateJavaScript(javaScriptString) { (obj, err) -> Void in | ||
| if let error = err { | ||
| promise.failure(error as NSError) | ||
| } | ||
| else { | ||
| promise.success(obj) | ||
| } | ||
| } | ||
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| return promise.future | ||
| } | ||
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| public static func visitURLFuture(url: NSURL) -> Future<Document, NSError> { | ||
| return Erik.sharedInstance.visitURLFuture(url) | ||
| } | ||
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| public static func currentContentFuture() -> Future<Document, NSError> { | ||
| return Erik.sharedInstance.currentContentFuture() | ||
| } | ||
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| public static func evaluateJavaScriptFuture(javaScriptString: String) -> Future<AnyObject?, NSError> { | ||
| return Erik.sharedInstance.evaluateJavaScriptFuture(javaScriptString) | ||
| } | ||
| } |
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