@endo/compartment-mapper/src/bundle-json.js

The compartment mapper assembles Node applications in a sandbox

/* Provides JSON support for `bundle.js`. */

const textDecoder = new TextDecoder();

export default {
  runtime: '',
  getBundlerKit({ index, indexedImports, bytes }) {
    // Round-trip to revalidate JSON and squeeze out space.
    const json = JSON.stringify(JSON.parse(textDecoder.decode(bytes)));
    return {
      getFunctor: () => `\
${json},
`,
      getCells: () => `\
    { default: cell('default') },
`,
      getReexportsWiring: () => '',
      getFunctorCall: () => `\
  cells[${index}].default.set(functors[${index}]);
`,
    };
  },
};