niw

let textView = UITextView(frame: view.bounds)

textView.autoresizingMask = [.flexibleWidth, .flexibleHeight]

let text = NSMutableAttributedString(string: "test")
text.addAttributes([
    .font: UIFont.systemFont(ofSize: 20.0),
    .foregroundColor: UIColor.label,
    .underlineStyle: 0
], range: NSRange(location: 0, length: text.length))

niw

diff --git a/lib/SIL/IR/SILInstruction.cpp b/lib/SIL/IR/SILInstruction.cpp
index b1e14d28d4..50d6016d68 100644
--- a/lib/SIL/IR/SILInstruction.cpp
+++ b/lib/SIL/IR/SILInstruction.cpp
@@ -1215,6 +1215,9 @@ bool SILInstruction::isTriviallyDuplicatable() const {
 
   // If you add more cases here, you should also update SILLoop:canDuplicate.
 
+  if (isa<InitExistentialAddrInst>(this))
+    return false;

niw

// `swiftc -Osize main.swift` then crash.
// Apple Swift version 5.2 (swiftlang-1103.0.32.1 clang-1103.0.32.29).

struct S {
}

struct T {
    let s: S
}

niw

How to embed user-specific dynamic variables updated every build in Info.plist

Info.plist can contain many dynamic variables that you can specify in Xcode configuration file by using Build Settings parameters.

However, Xcode configuration is a static environment and you can NOT inject any dynamic variables except Build Settings parameters.

One of solutions is using Pre-actions in Build scheme to update Xcode configuration file dynamically, however, it creates invisible dependency between scheme configuration and each project configuration.

Use Info.plist preprocessor

niw

// Run `swiftc -target x86_64-apple-macosx10.14 a.swift && nm -mg ./a`
// We will see non-weak symbol from Combine:
// `(extension in Combine):Combine.Subject< where A.Output == ()>.send() -> ()`

import Combine

@available(macOS 10.15, *)
func test() {
  let s = PassthroughSubject<Void, Never>()
  s.send()

niw

                 (undefined) external _$s7Combine14AnyCancellableC5store2inyShyACGz_tF (from Combine)
                 (undefined) external _$s7Combine7SubjectPAAyt6OutputRtzrlE4sendyyF (from Combine)
                 (undefined) external _$s7SwiftUI4ViewPAAE010navigationC5StyleyQrqd__AA010NavigationcE0Rd__lFQOMQ (from SwiftUI)
                 (undefined) external _$s7SwiftUI4ViewPAAE18navigationBarItems8trailingQrqd___tAaBRd__lFQOMQ (from SwiftUI)
                 (undefined) external _$s7SwiftUI4ViewPAAE18navigationBarTitle_11displayModeQrAA4TextV_AA010NavigationE4ItemV0f7DisplayH0OtFQOMQ (from SwiftUI)

niw

import chisel3._

class SRLatch extends Module {
  val io = IO(new Bundle {
    val set = Input(Bool())
    val reset = Input(Bool())

    val q = Output(Bool())
    val notQ = Output(Bool())
  })

niw

import chisel3._
import chisel3.util._

class HalfAddr extends Module {
  val io = IO(new Bundle {
    val inA = Input(UInt(1.W))
    val inB = Input(UInt(1.W))

    val outSum = Output(UInt(1.W))
    val outCarry = Output(UInt(1.W))

niw

import chisel3._
import chisel3.util._

class HalfAddr extends Module {
  val io = IO(new Bundle {
    val inA = Input(UInt(1.W))
    val inB = Input(UInt(1.W))

    val outSum = Output(UInt(1.W))
    val outCarry = Output(UInt(1.W))

niw

import chisel3._
import chisel3.util._

class SevenSegLED extends Module {
  val io = IO(new Bundle {
    val input = Input(UInt(4.W))
    val output = Output(UInt(8.W))
  })

  io.output := MuxCase(