joshuadutton
/ NSFetchRequest+Extensions.swift
Created
April 15, 2016 15:23
Functional Core Data in Swift
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| import Foundation | |
| import CoreData | |
| extension NSFetchRequest { | |
| func withPredicate(format: String, arguments: [AnyObject]? = nil) -> NSFetchRequest { | |
| return withPredicate(NSPredicate(format: format, argumentArray: arguments)) | |
| } | |
| func andPredicate(format: String, arguments: [AnyObject]? = nil) -> NSFetchRequest { |
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| import Cocoa | |
| import Foundation | |
| var str = "Hello, playground" | |
| var task:NSTask = NSTask() | |
| var pipe:NSPipe = NSPipe() | |
| task.launchPath = "/bin/ls" | |
| task.arguments = ["-la"] |
steipete
/ PSPDFThreadSafeMutableDictionary.m
Last active
December 10, 2022 09:37
Simple implementation of a thread safe mutable dictionary. In most cases, you want NSCache instead, but it can be useful in situations where you want to manually control what is evicted from the cache in low memory situations.**Warning:** I only use this for setting/getting keys. Enumeration is not thread safe here and will still throw exception…
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| // | |
| // PSPDFThreadSafeMutableDictionary.m | |
| // | |
| // Copyright (c) 2013 Peter Steinberger, PSPDFKit GmbH. All rights reserved. | |
| // | |
| // Permission is hereby granted, free of charge, to any person obtaining a copy | |
| // of this software and associated documentation files (the "Software"), to deal | |
| // in the Software without restriction, including without limitation the rights | |
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| // copies of the Software, and to permit persons to whom the Software is |
steipete
/ AtomicSetters.m
Created
July 4, 2013 15:39
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| // See http://www.opensource.apple.com/source/objc4/objc4-371.2/runtime/Accessors.subproj/objc-accessors.h | |
| extern void objc_setProperty(id self, SEL _cmd, ptrdiff_t offset, id newValue, BOOL atomic, BOOL shouldCopy); | |
| extern id objc_getProperty(id self, SEL _cmd, ptrdiff_t offset, BOOL atomic); | |
| extern void objc_copyStruct(void *dest, const void *src, ptrdiff_t size, BOOL atomic, BOOL hasStrong); | |
| #define PSPDFAtomicRetainedSetToFrom(dest, source) objc_setProperty(self, _cmd, (ptrdiff_t)(&dest) - (ptrdiff_t)(self), source, YES, NO) | |
| #define PSPDFAtomicCopiedSetToFrom(dest, source) objc_setProperty(self, _cmd, (ptrdiff_t)(&dest) - (ptrdiff_t)(self), source, YES, YES) | |
| #define PSPDFAtomicAutoreleasedGet(source) objc_getProperty(self, _cmd, (ptrdiff_t)(&source) - (ptrdiff_t)(self), YES) | |
| #define PSPDFAtomicStructToFrom(dest, source) objc_copyStruct(&dest, &source, sizeof(__typeof__(source)), YES, NO) |
steipete
/ PSPDFUIKitMainThreadGuard.m
Last active
May 27, 2024 12:11
This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…
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| // Taken from the commercial iOS PDF framework http://pspdfkit.com. | |
| // Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved. | |
| // Licensed under MIT (http://opensource.org/licenses/MIT) | |
| // | |
| // You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it. | |
| // PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit. | |
| #import <objc/runtime.h> | |
| #import <objc/message.h> |