example.ts

import * as React from 'react'

const mockA = new Map([
  [
    'react',
    React
  ],
]);

const module = new StaticModuleRecord(`
import { useState } from 'react';
export const entry = () => {
  const [state, setState] = useState(null)
  return null;
}
`);

const c1 = new Compartment(
  {},
  {},
  {
    name: 'first compartment',
  }
);

const imports = new Map<string, Map<string, any>>();
imports.set('a', mockA);

const f = c1.evaluate(module.__syncModuleProgram__);
f({
  imports: newUpdaters => {
    for (const [module, moduleUpdaters] of newUpdaters) {
      const moduleImports = imports.get(module);
      if (moduleImports) {
        for (const [importName, importUpdaters] of moduleUpdaters) {
          const updateImport = (value: any) => {
            for (const importUpdater of importUpdaters) {
              importUpdater(value);
            }
          };
          if (moduleImports.has(importName)) {
            updateImport(moduleImports.get(importName));
          } else {
            console.log('import not found', importName);
          }
        }
      }
    }
  },
  onceVar: {
    entry: (f: any) => {
      console.log('onceVar', f);
    },
  },
});