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- Proposal: SE-XXXX
- Authors: Chris Lattner, Joe Groff
Modern Cocoa development involves a lot of asynchronous programming using closures and completion handlers, but these APIs are hard to use. This gets particularly problematic when many asynchronous operations are used, error handling is required, or control flow between asynchronous calls gets complicated. This proposal describes a language extension to make this a lot more natural and less error prone.
This paper introduces a first class Coroutine model to Swift. Functions can opt into to being async, allowing the programmer to compose complex logic involving asynchronous operations, leaving the compiler in charge of producing the necessary closures and state machines to implement that logic.
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extension Bundle { | |
private static let agsBundle = AGSBundle() | |
/// An end-user printable string representation of the ArcGIS Bundle version shipped with the app. | |
/// | |
/// For example, "2883" | |
static var sdkBundleVersion: String { | |
return (agsBundle?.object(forInfoDictionaryKey: "CFBundleVersion") as? String) ?? "?" |