steipete

// clang -cc1 -analyzer-checker-help
// OVERVIEW: Clang Static Analyzer Checkers List
// USAGE: -analyzer-checker <CHECKER or PACKAGE,...>
// 
// CHECKERS:
//   alpha.core.BoolAssignment       Warn about assigning non-{0,1} values to Boolean variables
//   alpha.core.CallAndMessageUnInitRefArg
//                                   Check for logical errors for function calls and Objective-C message expressions (e.g., uninitialized arguments, null function pointers, and pointer to undefined variables)
//   alpha.core.CastSize             Check when casting a malloc'ed type T, whether the size is a multiple of the size of T
//   alpha.core.CastToStruct         Check for cast from non-struct pointer to struct pointer

steipete

# The trick is to link the DeviceSupport folder from the beta to the stable version.
# sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)

# Support iOS 15 devices (Xcode 13.0) with Xcode 12.5:
sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/15.0 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport

# Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions

# (A similar approach works for older versions too, just change the version number after DeviceSupport)

chriseidhof

//  Created by Chris Eidhof on 04-01-16.
//  Copyright © 2016 Chris Eidhof. All rights reserved.
//
// Large parts copy/pasted from https://github.com/Eonil/TCPIPSocket.Swift

import Foundation

struct TCPIPSocketAddress {
    init(_ a:UInt8, _ b:UInt8, _ c:UInt8, _ d:UInt8) {
        let	a1	=	UInt32(a) << 24

rnapier

import Foundation

// All the complexity needed to avoid this code probably isn't worth it in the majority of cases.
// Particularly note that the data model doesn't 100% line up with the JSON (some keys have
// slightly different names for instance). A system flexible enough to handle that (say, something
// like Go's json.Marshal) would be nice, but this code, while slightly tedious, isn't really bad.
// Basically I'm saying that a richer JSON<->Swift system built into stdlib would be nice, but the
// bar is pretty high to go pulling in a helper library.
//
// That said, compare the Go code below, and I think it really is much simpler, and scales much better

mikeash

import Cocoa

enum CoroutineState {
    case Fresh, Running, Blocked, Canceled, Done
}

struct CoroutineCancellation: ErrorType {}

class CoroutineImpl<InputType, YieldType> {
    let body: (yield: YieldType throws -> InputType) throws -> Void

steipete

We're working on supporting Bitcode in PSPDFKit but hit a blocking issue with OpenSSL (latest 1.0.2d).

We're using a script that downloads and builds OpenSSL into fat static libraries for both Mac and iOS. I've put the gist here:
https://gist.github.com/steipete/ce09ba176a4b8ef66b2d/bf053eab1c0f8494dcd3748079543c4ed4367b9c

Enabling Bitcode should be as easy as adding `-fembed-bitcode` as clang flag according to this entry. That's exactly what I did.

Now things build, but the script eventually stops with this error:
ld: could not open bitcode temp file: ../libcrypto.a(aes-x86_64.o) for architecture x86_64

Ashton-W

<?xml version="1.0" encoding="UTF-8"?>
<Bucket
   type = "2"
   version = "2.0">
   <Breakpoints>

      <!-- All Exceptions -->
      <BreakpointProxy
         BreakpointExtensionID = "Xcode.Breakpoint.ExceptionBreakpoint">
         <BreakpointContent

krzyzanowskim

// Playground - noun: a place where people can play

import Foundation

typealias Byte = UInt8

protocol GenericIntegerType: IntegerType {
    init(_ v: Int)
    init(_ v: UInt)
    init(_ v: Int8)

JeOam

Author: https://www.cyanhall.com/

1. The Layer Tree

Core Animation's original name is Layer Kit

Core Animation is a compositing engine; its job is to compose different pieces of visual content on the screen, and to do so as fast as possible. The content in question is divided into individual layers stored in a hierarchy known as the layer tree. This tree forms the underpinning for all of UIKit, and for everything that you see on the screen in an iOS application.

In UIView, tasks such as rendering, layout and animation are all managed by a Core Animation class called CALayer. The only major feature of UIView that isn’t handled by CALayer is user interaction.

There are four hierarchies, each performing a different role:

steventroughtonsmith

import subprocess

def looksLikeBeginning(doc,seg,adr):
	if doc.is64Bits() and seg.readByte(adr) == 0x55 and seg.readByte(adr + 1) == 0x48 and seg.readByte(adr + 2) == 0x89 and seg.readByte(adr + 3) == 0xE5:
		return True
	if not doc.is64Bits() and seg.readByte(adr) == 0x55 and seg.readByte(adr + 1) == 0x89 and seg.readByte(adr + 2) == 0xE5:
		return True
	return False

doc = Document.getCurrentDocument()