View file File name : wasmrun.js Content :#!/usr/bin/env node "use strict"; function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); } function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); } function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter); } function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); } function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; } var _require = require("webassemblyjs"), instantiate = _require.instantiate; var fs = require("fs"); function debug(msg) { console.error(msg); } function toArrayBuffer(buf) { return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength); } var filename = process.argv[2]; var entrypoint = process.argv[3]; if (typeof filename === "undefined") { throw new Error("Missing file"); } debug("Compiling..."); // $FlowIgnore: this is correct but not correctly documented var buff = toArrayBuffer(fs.readFileSync(filename, null)); var importObject = { env: { printf: function printf() { var _console; for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) { args[_key] = arguments[_key]; } (_console = console).log.apply(_console, ["printf"].concat(args)); } } }; instantiate(buff, importObject).then(function (_ref) { var instance = _ref.instance; console.log("exports", Object.keys(instance.exports)); if (typeof entrypoint !== "undefined") { var startfn = instance.exports[entrypoint]; if (typeof startfn !== "function") { throw new Error("Entrypoint not found"); } debug("Executing..."); var exitCode = startfn.apply(void 0, _toConsumableArray(process.argv.slice(4))); console.log("exited with code", exitCode); } })["catch"](function (err) { throw err; }); process.on("unhandledRejection", function (error) { throw error; });