gatherheart

OVERVIEW: Swift frontend

USAGE: swift-frontend -frontend

MODES:
  -compile-module-from-interface
                         Treat the (single) input as a swiftinterface and produce a module
  -dump-ast              Parse and type-check input file(s) and dump AST(s)
  -dump-interface-hash   Parse input file(s) and dump interface token hash(es)
  -dump-parse            Parse input file(s) and dump AST(s)

gatherheart

import Foundation

func withCStrings(_ strings: [String], scoped: ([UnsafeMutablePointer<CChar>?]) throws -> Void) rethrows {
    let cStrings = strings.map { strdup($0) }
    try scoped(cStrings + [nil])
    cStrings.forEach { free($0) }
}

enum RunCommandError: Error {
    case WaitPIDError

gatherheart

Problem

You can't use bridging headers within a framework.

Solution 1 (umbrella header):

Xcode will automatically create umbrella header for you Cocoa Framework project. That will be the file named <FrameworkName>.h in the <FrameworkName> group/folder (where the rest of your sources are).

1. To include the required Obj-C header you need to set it as Public: select it in the project explorer (left pane) and change the property Target Membership (left—Inspectors—pane) from Project to Public.
2. Open umbrella header (<FrameworkName>.h) and import the required header as:

gatherheart

#!/bin/bash
#
# git-mv-with-history -- move/rename file or folder, with history.
#
# Moving a file in git doesn't track history, so the purpose of this
# utility is best explained from the kernel wiki:
#
#   Git has a rename command git mv, but that is just for convenience.
#   The effect is indistinguishable from removing the file and adding another
#   with different name and the same content.

gatherheart

var content = UNMutableNotificationContent()

content.title = "Title"
content.subtitle = "Subtitle"
content.body = "Text"
content.sound = nil
content.categoryIdentifier = "categoryName"

var personNameComponents = PersonNameComponents()
personNameComponents.nickname = "Sender Name"

gatherheart

func countLabelLines(label: UILabel) -> Int {
    // Call self.layoutIfNeeded() if your view uses auto layout
    let myText = label.text! as NSString

    let rect = CGSize(width: label.bounds.width, height: CGFloat.greatestFiniteMagnitude)
    let labelSize = myText.boundingRect(with: rect, options: .usesLineFragmentOrigin, attributes: [NSAttributedStringKey.font: label.font], context: nil)

    return Int(ceil(CGFloat(labelSize.height) / label.font.lineHeight))
}

gatherheart

import Foundation
import ObjectiveC.runtime

let myString = "foobar" as NSString

println(myString.description)

let myBlock : @objc_block (AnyObject!) -> String = { (sself : AnyObject!) -> (String) in
    "✋"
}

gatherheart

so A and B are structurally identical
C reverses the order of the 8 and 32 bit Ints
and D substitutes a string for the Int8
then I try to read aaaa’s bits using B C and D overlays 😊
C is printing the 8 bits of the A integer j and then the first 8 bits of integer k but somehow that still works out to one

when I hit D it doesn’t find a string so prints a blank

but the important point is: it doesn’t check anything, and doesn’t crash

gatherheart

성능 비교하기

• 테스트앱
• 낮은 해상도 = 사진 크기: 10 ~ 50KB
• 중간 해상도 = 사진 크기: 100 ~ 500KB + 5MB
• 높은 해상도 = 사진 크기: 10 ~ 50MB
• 기본 설정 = 설정: 메모리 100MB 디스크 150MB
• 리사이즈 = (화면 너비 / 3)^2. iPhone 8+ 기준으로 414 pixel.

리사이즈 없이 테스트

gatherheart

Communicating Between GraphQL Resolver Functions

TODO:

• Read DataLoader Source
• Check out Keechma's Dataloader and Graphql Builder... (video)
• Check out this example with GraphQL + Express + Dataloader

Overview