@picoruby/wasm-wasi/dist/init.iife.js

PicoRuby WebAssembly WASI

(async function(global) {
  async function initPicoRuby() {
    // Import the factory function
    const baseURL = document.currentScript?.src ? new URL('.', document.currentScript.src).href : '';
    const { default: createModule } = await import(baseURL + 'picoruby.js');

    async function collectRubyScripts() {
      const rubyScripts = document.querySelectorAll('script[type="text/ruby"]');
      const taskPromises = Array.from(rubyScripts).map(async script => {
        if (script.src) {
          const response = await fetch(script.src);
          if (!response.ok) {
            throw new Error(`Failed to load ${script.src}: ${response.statusText}`);
          }
          return await response.text();
        }
        return script.textContent.trim();
      });
      return Promise.all(taskPromises);
    }

    // Create and initialize the module
    const Module = await createModule();
    Module.picorubyRun = function() {
      const MRBC_TICK_UNIT = 8.1;
      let lastTime = performance.now();
      function run() {
        const currentTime = performance.now();
        if (MRBC_TICK_UNIT <= currentTime - lastTime) {
          Module.ccall('mrbc_tick', null, [], []);
          lastTime = currentTime;
        }
        const result = Module.ccall('mrbc_run_step', 'number', [], [], { async: true });
        if (result < 0) { // All tasks are dormant
          return; // Finish
        }
        setTimeout(run, 0);
      }
      run();
    };

    // Initialize WASM and start tasks
    Module.ccall('picorb_init', 'number', [], []);

    // Collect and create tasks from Ruby script tags
    try {
      const rubyTasks = await collectRubyScripts();
      rubyTasks.forEach(function(task) {
        Module.ccall('picorb_create_task', 'number', ['string'], [task]);
      });
    } catch (error) {
      console.error('Error loading Ruby tasks:', error);
    }

    // Also support window.userTasks if present (for backward compatibility)
    if (window.userTasks) {
      window.userTasks.forEach(function(task) {
        Module.ccall('picoruby_create_task', 'number', ['string'], [task]);
      });
    }

    // Start PicoRuby execution
    Module.picorubyRun();
  }

  global.initPicoRuby = initPicoRuby;

  await initPicoRuby();
})(typeof window !== 'undefined' ? window : this).catch(console.error);