rex-remind101

final private class Ref<T> {
    var value: T
    init(_ v: T) { self.value = v }
}

@propertyWrapper
public struct CopyOnWrite<T> {
    private var ref: Ref<T>
    
    public init(_ value: T) {

rxwei

/// A type equality guarantee is capable of safely casting one value to a
/// different type. It can only be created when `S` and `T` are statically known
/// to be equal.
struct TypeEqualityGuarantee<S, T> {
  private init() {}

  /// Safely cast a value to the other type.
  func cast(_ value: T) -> S {
    return value as! S
  }

jiaaro

Using Swift libraries in Python

So... this is obviously totally, 100%, like for. real. not. supported. by. Apple. …yet?

But still... I thought it was pretty badass. And, seeing how there's already a Swift buildpack for Heroku you could move some slow code into Swift can call it as a library function. But, you know, not in production or anything. That would be silly, right?

Now, having said that, the actual Python/Swift interop may have bugs. I'll leave that as an exercise to the reader.

How to get Python code calling Swift functions:

johanneswuerbach

---
language: objective-c
before_script:
- ./scripts/travis/add-key.sh
after_script:
- ./scripts/travis/remove-key.sh
after_success:
- ./scripts/travis/testflight.sh
env:
  global:

mpospese

CGRect CGRectIntegralScaledEx(CGRect rect, CGFloat scale)
{
    return CGRectMake(floorf(rect.origin.x * scale) / scale, floorf(rect.origin.y * scale) / scale, ceilf(rect.size.width * scale) / scale, ceilf(rect.size.height * scale) / scale);
}

CGRect CGRectIntegralScaled(CGRect rect)
{
    return CGRectIntegralScaledEx(rect, [[UIScreen mainScreen] scale]);
}