Tomohiro Kumagai es-kumagai

ezura / retain.swift

Created April 22, 2017 05:04

strong var で参照が 2 増える件

	do {
	let obj2 = NSObject()
	CFGetRetainCount(obj2) // 2
	let test = { CFGetRetainCount(obj2) }
	CFGetRetainCount(obj2) // 3
	test() // 4
	CFGetRetainCount(obj2) // 3
	}

ezura / obj.swift

Created April 22, 2017 02:44

retain count 調べ

	class Obj2 {
	var tag: String
	init(_ tag: String) {
	self.tag = tag
	}

	func defer1() {
	print(tag, #function, "start", CFGetRetainCount(self))
	defer { print(tag, #function, "defer", CFGetRetainCount(self)) }
	print(tag, #function, "end", CFGetRetainCount(self))

ezura / CodePiece.swift

Created November 27, 2016 07:21

Segmentation fault: 11 (´・ω・｀)？ #swift #CodePiece

	// objc
	@interface ObjcClass<T> : NSObject
	@property(nonnull) T property;
	@end

	// swift
	protocol ContainGenericType {
	associatedtype T
	var property: T { get }
	}