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| Copyright (c) 2014 Skyvive <[email protected]> | ||
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| 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: | ||
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| The above copyright notice and this permission notice shall be included in | ||
| all copies or substantial portions of the Software. | ||
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| 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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| Pod::Spec.new do |s| | ||
| s.name = "PropertyExtensions" | ||
| s.version = "1.0.3" | ||
| s.summary = "Add Stored Properties In Swift Class Extensions" | ||
| s.description = <<-DESC | ||
| PropertyExtensions allows you to dynamically add properties to your class extensions. | ||
| DESC | ||
| s.homepage = "https://github.com/bradhilton/PropertyExtensions" | ||
| s.license = { :type => "MIT", :file => "LICENSE" } | ||
| s.author = { "Brad Hilton" => "[email protected]" } | ||
| s.source = { :git => "https://github.com/bradhilton/PropertyExtensions.git", :tag => "1.0.3" } | ||
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| s.ios.deployment_target = "8.0" | ||
| s.osx.deployment_target = "10.9" | ||
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| s.source_files = "PropertyExtensions", "PropertyExtensions/**/*.{swift,h,m}" | ||
| s.requires_arc = true | ||
| end |
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| // | ||
| // PropertyExtensions.swift | ||
| // PropertyExtensions | ||
| // | ||
| // Created by Bradley Hilton on 2/9/16. | ||
| // Copyright © 2016 Brad Hilton. All rights reserved. | ||
| // | ||
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| import ObjectiveC.runtime | ||
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| protocol PropertyExtensions : class {} | ||
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| extension PropertyExtensions { | ||
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| func getProperty<T>(property: String) -> T? { | ||
| return (objc_getAssociatedObject(self, property.associatedValueKey) as? AssociatedValue)?.value as? T | ||
| } | ||
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| func getProperty<T>(property: String, initial: T) -> T { | ||
| if let value: T = getProperty(property) { | ||
| return value | ||
| } else { | ||
| setValue(initial, forProperty: property) | ||
| return initial | ||
| } | ||
| } | ||
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| func setValue<T>(value: T?, forProperty property: String) { | ||
| objc_setAssociatedObject(self, property.associatedValueKey, AssociatedValue(value: value), .OBJC_ASSOCIATION_RETAIN) | ||
| } | ||
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| } | ||
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| extension String { | ||
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| private var associatedValueKey: UnsafePointer<Void> { | ||
| return UnsafePointer<Void>(bitPattern: abs(hashValue)) | ||
| } | ||
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| } | ||
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| private class AssociatedValue { | ||
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| var value: Any? = nil | ||
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| init?(value: Any?) { | ||
| guard value != nil else { return nil } | ||
| self.value = value | ||
| } | ||
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| } |
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