create-nitro-lib/dist/generators/iosGenerator.js

CLI tool to generate React Native Nitro Modules templates

import path from 'node:path';
import fs from 'fs-extra';
import { toPascalCase } from '../utils/string.js';
export async function createIosStructure(packageDir, config) {
    const iosDir = path.join(packageDir, 'ios');
    await fs.ensureDir(iosDir);
    const pascalName = toPascalCase(config.name);
    const podspecContent = `require "json"

package = JSON.parse(File.read(File.join(__dir__, "package.json")))

Pod::Spec.new do |s|
  s.name         = "${pascalName}"
  s.version      = package["version"]
  s.summary      = package["description"]
  s.homepage     = package["homepage"]
  s.license      = package["license"]
  s.authors      = package["author"]

  s.platforms    = { :ios => min_ios_version_supported, :visionos => 1.0 }
  s.source       = { :git => "https://github.com/Developer/${config.packageName}.git", :tag => "#{s.version}" }

  s.source_files = [
    # Implementation (Swift)
    "ios/**/*.{swift}",
    # Autolinking/Registration (Objective-C++)
    "ios/**/*.{m,mm}",
    # Implementation (C++ objects)
    "cpp/**/*.{hpp,cpp}",
  ]

  s.pod_target_xcconfig = {
    # C++ compiler flags, mainly for folly.
    "GCC_PREPROCESSOR_DEFINITIONS" => "$(inherited) FOLLY_NO_CONFIG FOLLY_CFG_NO_COROUTINES"
  }

  load 'nitrogen/generated/ios/${pascalName}+autolinking.rb'
  add_nitrogen_files(s)

  s.dependency 'React-jsi'
  s.dependency 'React-callinvoker'
  install_modules_dependencies(s)
end
`;
    await fs.writeFile(path.join(packageDir, `${pascalName}.podspec`), podspecContent);
}
export async function createIosSwiftImplementation(packageDir, config) {
    const iosDir = path.join(packageDir, 'ios');
    await fs.ensureDir(iosDir);
    const pascalName = toPascalCase(config.name);
    const swiftContent = `import Foundation
import NitroModules

class Hybrid${pascalName}: Hybrid${pascalName}Spec {

    func hello(name: String) -> String {
        return "Hello \\(name) from ${pascalName}!"
    }

    func add(a: Double, b: Double) -> Double {
        return a + b
    }
}
`;
    await fs.writeFile(path.join(iosDir, `Hybrid${pascalName}.swift`), swiftContent);
}