preble

//
//  Created by Adam Preble on 2/19/15.
//

/// Weak, unordered collection of objects.
public struct WeakSet<T where T: AnyObject, T: Hashable> {
    typealias Element = T
    
    /// Maps Element hashValues to arrays of Entry objects.
    /// Invalid Entry instances are culled as a side effect of add() and remove()

preble

# Full path: /home/pi/.config/lxsession/LXDE-pi/autostart
@lxpanel --profile LXDE-pi
@pcmanfm --desktop --profile LXDE-pi
@xset s off
@xset -dpms
@xset s noblank
@/home/pi/jmri-runner.sh

preble

#import "NSString+ConcurrentEnumeration.h"

@implementation NSString (ConcurrentLineEnumeration)

- (void)enumerateConcurrentlyWithOptions:(NSStringEnumerationOptions)options
                              usingBlock:(void (^)(NSString *substring))block
{
  dispatch_group_t group = dispatch_group_create();
  
  [self enumerateSubstringsInRange:NSMakeRange(0, [self length])

preble

public extension Optional {

    /// Stop in the debugger in debug builds if self is `.none`.
    ///
    /// Example usage:
    ///
    ///   guard let value = maybeValue.assertUnwrap() else { return "bogus value" }
    ///
    func assertUnwrap(_ message: @autoclosure () -> String? = nil, file: StaticString = #file, function: String = #function, line: UInt = #line) -> Wrapped? {
        switch self {

preble

final class Completion<R> {
	
	private let closure: (R) -> Void
	private var cancelled = false

	/// `closure` is called upon completion, if not cancelled.
	init(closure: (R) -> Void) {
		self.closure = closure
	}
	

preble

import Cocoa

@objc
class SomeTextStorage: NSTextStorage {
    
    private var storage: NSMutableAttributedString
    
    override init() {
        storage = NSMutableAttributedString(string: "", attributes: nil)
        super.init()

preble

@class BNRBlockView;

typedef void(^BNRBlockViewDrawer)(BNRBlockView *view, NSRect dirtyRect);

@interface BNRBlockView : NSView {
	BNRBlockViewDrawer drawBlock;
	BOOL opaque;
}

+ (BNRBlockView *)viewWithFrame:(NSRect)frame

preble

protocol Mutatable {}

extension Mutatable {
    func mutated(f: (inout Self) -> Void) -> Self {
        var copy = self
        f(&copy)
        return copy
    }
}

preble

import Foundation

func > (left: NSDate, right: NSDate) -> Bool {
    return left.compare(right) == .OrderedDescending
}

extension NSCalendar {
    func dateRange(startDate startDate: NSDate, endDate: NSDate, stepUnits: NSCalendarUnit, stepValue: Int) -> DateRange {
        let dateRange = DateRange(calendar: self, startDate: startDate, endDate: endDate, stepUnits: stepUnits, stepValue: stepValue, multiplier: 0)
        return dateRange

preble

Was getting the following errors when calling AVAssetImageGenerator generateCGImagesAsynchronously. The stream in question was an HLS stream. When I switched to using the AVURLAsset of an MP4, the error disappeared.

With Apple-supplied HLS stream:

Error Domain=AVFoundationErrorDomain Code=-11819 "Cannot Complete Action" UserInfo={NSLocalizedRecoverySuggestion=Try again later., NSLocalizedDescription=Cannot Complete Action, NSUnderlyingError=0x1c0057850 {Error Domain=NSOSStatusErrorDomain Code=-12178 "(null)"}}

With another HLS stream generated by a video hosting provider:

Error Domain=AVFoundationErrorDomain Code=-11800 "The operation could not be completed" UserInfo={NSLocalizedFailureReason=An unknown error occurred (-12436), NSLocalizedDescription=The operation could not be completed, NSUnderlyingError=0x1c4a57e20 {Error Domain=NSOSStatusErrorDomain Code=-12436 "(null)"}}