Function createInterfaceConverter

lib/internal/webidl.js:833–844

* Creates a converter for a Web IDL interface type. * @see https://webidl.spec.whatwg.org/#js-interface * @param {string} name Interface identifier. * @param {object} prototype Interface prototype object. * @returns {Converter}

(name, prototype)

 * @returns {Converter}
 */
function createInterfaceConverter(name, prototype) {
  return (V, options = kEmptyObject) => {
    // Web IDL interface conversion step 1: return V if it implements I.
    if (ObjectPrototypeIsPrototypeOf(prototype, V)) {
      return V;
    }
    // Step 2: otherwise throw.
    throw makeException(
      `is not of type ${name}.`,
      options);
  };
}

/**
 * Returns the ArrayBuffer or SharedArrayBuffer viewed by a typed array or