johnno1962

InjectionIII is an app available that provides "code injection" functionality allowing you to update the implementation of functions, memeber function and SwiftUI content body properties without having to restart your application. This can be useful to iterate over code or design without having to rebuild and restart your application continuously.

https://github.com/johnno1962/InjectionIII

Part of the implementation of injection is that it requires a user to add the following line somewhere in their code:

Bundle(path: "/Applications/InjectionIII.app/Contents/Resources/iOSInjection.bundle")?.load()

johnno1962

// First, install InjectionIII.app from the Mac AppStore
// https://apps.apple.com/us/app/injectioniii/id1380446739?mt=12

// Make these changes to your code:

// add the following to application(didFinishLaunchingWithOptions:)
#if DEBUG
Bundle(path: "/Applications/InjectionIII.app/Contents/Resources/iOSInjection.bundle")?.load()
#endif

johnno1962

diff --git a/include/swift/AST/KnownIdentifiers.def b/include/swift/AST/KnownIdentifiers.def
index 5222c7f12e..6f6b921841 100644
--- a/include/swift/AST/KnownIdentifiers.def
+++ b/include/swift/AST/KnownIdentifiers.def
@@ -145,6 +145,7 @@ IDENTIFIER(nilLiteral)
 IDENTIFIER(integerLiteral)
 IDENTIFIER_(builtinIntegerLiteral)
 IDENTIFIER(codepointLiteral)
+IDENTIFIER(characterLiteral)
 IDENTIFIER_(MaxBuiltinFloatType)

johnno1962

"Raw" mode string literals

• Proposal: SE-0200
• Author: John Holdsworth, Brent Royal-Gordon, Erica Sadun
• Review Manager: Doug Gregor
• Status: Returned for revision
• Implementation: apple/swift#17668
• Bugs: SR-6362 Needs Update for New Design

Introduction

johnno1962

  case '"':
    return lexStringLiteral(Token::StringModifiers(0));
  case '\'':
    return lexChar();
  case '`':
    return lexEscapedIdentifier();
  }
}

void Lexer::lexChar() {

johnno1962

       let bookTuples = [(1, "john", "book", "novel", 9.99, ["chapt1", "chapt2"]),
                         (2, "john", "book", "novel", 9.99, ["chapt1", "chapt2"])]

      // leaves blank line when there are no values in the list
        let json1 = """
            {
                "catalog": [
            \(bookTuples.map {
            (id, author, title, genre, price, chapters) in """
                    {

johnno1962

        // Multi-line string proposals
        // https://github.com/apple/swift/pull/2275

        // swift-evolution thread:
        // http://thread.gmane.org/gmane.comp.lang.swift.evolution/904/focus=15133

        // These examples should load in the prototype toolchain available here:
        // http://johnholdsworth.com/swift-LOCAL-2016-05-09-a-osx.tar.gz