karwa

import Foundation

/// This isn't safe to use before Swift gets ABI stability, because generic classes
/// could change their names. Also, be sure to register bridges with the Obj-C runtime
/// if using to decode during iOS state restoration.
///
class CodableBridge<Wrapped: Codable>: NSObject, NSSecureCoding {
  let value: Wrapped
  init(_ value: Wrapped) { self.value = value }

karwa

struct VirtualKeyPath<Root, Value> {
    private let block: (Root) -> Value
    init(block: @escaping (Root) -> Value) { self.block = block }
}

// Evaluation

extension VirtualKeyPath {
    func evaluate(on: Root) -> Value { return block(on) }

karwa

extension Collection {

  /// Repeats the collection _itself_ N times.
  ///
  /// ```
  /// > [1, 2, 3].repeated(3).forEach { print($0) }
  /// [1, 2, 3]
  /// [1, 2, 3]
  /// [1, 2, 3]

karwa

import Dispatch

// Import C11 for atomic_flag
// FIXME: SWIFT(canImport)
//#if canImport(Glibc)
//  import Glibc.stdatomic
//#elseif canImport(Darwin)
  import Darwin.C.stdatomic
//#endif

karwa

Ease restrictions on protocol nesting

• Proposal: SE-NNNN
• Authors: Karl Wagner
• Review Manager: TBD
• Status: Awaiting review

During the review process, add the following fields as needed:

• Decision Notes: Rationale, Additional Commentary

karwa

Specialising based on parameter values

The compiler would statically optimise a function with particular values, and generate an entry point which checks for the values and runs the optimised implementations.

@_specialize(value: 42)
// Some function on our hot path
func someFunction(value: Int) -> Result? {
  if value == 42 {
 // magic value. Do some special processing.

karwa

Add integral rounding functions to FloatingPoint

• Proposal: SE-NNNN
• Author: Karl Wagner
• Status: Awaiting review
• Review manager: TBD

Introduction, Motivation

The standard library lacks equivalents to the floor() and ceil() functions found in the standard libraries of most other languages. Currently, we need to import Darwin or Glibc in order to access the C standard library versions.

karwa

#!/usr/bin/env python

import argparse
import sys
import gzip
import urllib
import urlparse
import posixpath
import cStringIO
import os