stephancasas

//
//  DumbHTTPServer.swift
//  DumbHTTPServer
//
//  Created by Stephan Casas on 3/29/24.
//

import SwiftUI;
import Combine;

burke

# typed: true
# frozen_string_literal: true
require('dev')
require('fileutils')

module Dev
  module Helpers
    class APFSVolume
      extend(T::Sig)

kastiglione

Debugging the Swift Toolchain

Use these steps to debug components of the Swift toolchain. This allows you to see Swift's source code from the debugger – instead of disassembly. The debugger can also provide some variable names and values. This has been initially tested with libswiftCore.dylib.

These instructions were updated as of Swift 5.2.1.

Prerequisites

burke

# typed: false
# frozen_string_literal: true

# Note: This is loaded *ludicrously* early in the boot process: please don't
# introduce other dependencies here.

# ===

# Okay so here's the deal. When we compile a bundle of ruby code via
# `bundlerEnv`, we install all the gems individually into a bunch of separate

kastiglione

Recently, we wanted call swift-demangle from code, but calling out to the process frequently was a bit too slow, and meant parsing the output of -tree-only, since we wanted to access module and class names, for example.

Fortunately there's libswiftDemangle.dylib for this, but it's a C++ API. Compiling against it requires #includeing headers from both Swift and LLVM.

Using CMake, both Swift and LLVM can easily be added as dependencies, but we build this project with SwiftPM. To build with SwiftPM, we imported the necessary headers. Roughly, here are the steps to determine which specific Swift

Omar-Ikram

//
//  main.m
//  EndpointSecurityDemo
//
//  Created by Omar Ikram on 17/06/2019 - macOS Catalina 10.15 Beta 1 (19A471t)
//  Updated by Omar Ikram on 15/08/2019 - macOS Catalina 10.15 Beta 5 (19A526h)
//  Updated by Omar Ikram on 01/12/2019 - macOS Catalina 10.15 (19A583)
//  Updated by Omar Ikram on 31/01/2021 - macOS Big Sur 11.1 (20C69)
//  Updated by Omar Ikram on 07/05/2021 - macOS Big Sur 11.3.1 (20E241)
//  Updated by Omar Ikram on 04/07/2021 - macOS Monterey 12 Beta 2 (21A5268h)

jerrymarino

Nix tips

Few tips from using the nix package manager on macOS.

Tip 0 Learn the fundamentals and benefits

https://www.youtube.com/watch?v=D5Gq2wkRXpU

Tip 1 Nix channel pinning

dreness

import Cocoa

// https://cocoa-dev.apple.narkive.com/Ciy40e20/is-cloning-the-same-as-copying-in-apfs#post8
func unclonedSize(of url: URL) throws -> off_t {
    var list = attrlist(bitmapcount: UInt16(ATTR_BIT_MAP_COUNT),
                        reserved: 0,
                        commonattr: 0,
                        volattr: 0,
                        dirattr: 0,
                        fileattr: 0,

rxwei

Hi all, @dan-zheng and I wrote a proposal to introduce static callables to Swift. This proposal is also available as a gist here. We'd love to hear your feedback.

Introduce callables

• Proposal: SE-NNNN
• Authors: Richard Wei, Dan Zheng
• Review Manager: TBD
• Status: Implementation in progress

Introduction

kastiglione

void addMainThreadCheck(Class cls, SEL selector) {
#if DEBUG
    void *symbol = dlsym(RTLD_DEFAULT, "__main_thread_add_check_for_selector");
    if (!symbol) {
        return;
    }
    void (*addCheck)(Class, SEL) = (__typeof__(addCheck))symbol;
    addCheck(cls, selector);
#endif
}