Apple ha rilasciato la prima preview di Swift 3, nuova versione del linguaggio di programmazione per app iOS e OS X.
Questa prima beta fa già capire quali saranno le novità di Swift 3.0, molte delle quali saranno sicuramente presentate alla WWDC 2016. La versione finale sarà disponibile entro fine anno e sarà incentrata soprattutto sul miglioramento delle performance e della stabilità generale.
Per gli sviluppatori, ecco la lista dei cambiamenti tecnici di questa release:
- SE-0002: Removing currying
funcdeclaration syntax - SE-0003: Removing
varfrom Function Parameters - SE-0004: Remove the
++and--operators - SE-0005: Better Translation of Objective-C APIs Into Swift
- SE-0006: Apply API Guidelines to the Standard Library
- SE-0007: Remove C-style for-loops with conditions and incrementers
- SE-0008: Add a Lazy flatMap for Sequences of Optionals
- SE-0016: Adding initializers to Int and UInt to convert from UnsafePointer and UnsafeMutablePointer
- SE-0017: Change
Unmanagedto useUnsafePointer - SE-0019: Swift Testing
- SE-0023: API Design Guidelines
- SE-0028: Modernizing Swift’s Debugging Identifiers (__FILE__, etc)
- SE-0029: Remove implicit tuple splat behavior from function applications
- SE-0031: Adjusting inout Declarations for Type Decoration
- SE-0032: Add
first(where:)method toSequenceType - SE-0033: Import Objective-C Constants as Swift Types
- SE-0034: Disambiguating Line Control Statements from Debugging Identifiers
- SE-0037: Clarify interaction between comments & operators
- SE-0039: Modernizing Playground Literals
- SE-0040: Replacing Equal Signs with Colons For Attribute Arguments
- SE-0043: Declare variables in ‘case’ labels with multiple patterns
- SE-0044: Import as Member
- SE-0046: Establish consistent label behavior across all parameters including first labels
- SE-0049: Move @noescape and @autoclosure to be type attributes
- SE-0053: Remove explicit use of
letfrom Function Parameters - SE-0054: Abolish
ImplicitlyUnwrappedOptionaltype - SE-0055: Make unsafe pointer nullability explicit using Optional
- SE-0057: Importing Objective-C Lightweight Generics
- SE-0059: Update API Naming Guidelines and Rewrite Set APIs Accordingly
- SE-0061: Add Generic Result and Error Handling to autoreleasepool()
- SE-0062: Referencing Objective-C key-paths
- SE-0064: Referencing the Objective-C selector of property getters and setters
- SE-0065: A New Model For Collections and Indices
- SE-0069: Mutability and Foundation Value Types
- SE-0070: Make Optional Requirements Objective-C-only
- SE-0071: Allow (most) keywords in member references
- SE-0072: Fully eliminate implicit bridging conversions from Swift
- SE-0085: Package Manager Command Names
- SE-0094: Add sequence(first:next:) and sequence(state:next:) to the stdlib
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