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s.golasch
320
build/node_modules/prepack/lib/prepack-cli.js
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vendored
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320
build/node_modules/prepack/lib/prepack-cli.js
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"use strict";
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var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }(); /**
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* Copyright (c) 2017-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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/* eslint-disable no-shadow */
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var _errors = require("./errors.js");
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var _options = require("./options.js");
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var _prepackNode = require("./prepack-node.js");
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var _fs = require("fs");
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var _fs2 = _interopRequireDefault(_fs);
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var _v = require("v8");
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var _v2 = _interopRequireDefault(_v);
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var _package = require("../package.json");
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var _invariant = require("./invariant");
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var _invariant2 = _interopRequireDefault(_invariant);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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// Prepack helper
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function run(Object, Array, console, JSON, process, prepackStdin, prepackFileSync, FatalError, CompatibilityValues, fs) {
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var HELP_STR = "\n input The name of the file to run Prepack over (for web please provide the single js bundle file)\n --out The name of the output file\n --compatibility The target environment for Prepack [" + CompatibilityValues.map(function (v) {
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return "\"" + v + "\"";
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}).join(", ") + "]\n --mathRandomSeed If you want Prepack to evaluate Math.random() calls, please provide a seed.\n --srcmapIn The input sourcemap filename. If present, Prepack will output a sourcemap that maps from\n the original file (pre-input sourcemap) to Prepack's output\n --srcmapOut The output sourcemap filename.\n --maxStackDepth Specify the maximum call stack depth.\n --timeout The amount of time in seconds until Prepack should time out.\n --additionalFunctions Additional functions that should be prepacked (comma separated).\n --abstractEffectsInAdditionalFunctions Experimental flag to allow abstract effectful function calls.\n --lazyObjectsRuntime Enable lazy objects feature and specify the JS runtime that support this feature.\n --debugNames Changes the output of Prepack so that for named functions and variables that get emitted into\n Prepack's output, the original name is appended as a suffix to Prepack's generated identifier.\n --speculate Enable speculative initialization of modules (for the module system Prepack has builtin\n knowledge about). Prepack will try to execute all factory functions it is able to.\n --trace Traces the order of module initialization.\n --serialize Serializes the partially evaluated global environment as a program that recreates it.\n (default = true)\n --residual Produces the residual program that results after constant folding.\n --profile Enables console logging of profile information of different phases of prepack.\n --statsFile The name of the output file where statistics will be written to.\n --heapGraphFilePath The name of the output file where heap graph will be written to.\n --inlineExpressions When generating code, tells prepack to avoid naming expressions when they are only used once,\n and instead inline them where they are used.\n --simpleClosures When generating code, tells prepack to not defer initializing closures\n --omitInvariants When generating code, tells prepack to omit writing invariants. (Invariants generated by default.)\n --version Output the version number.\n ";
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var args = Array.from(process.argv);
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args.splice(0, 2);
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var inputFilenames = [];
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var outputFilename = void 0;
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var compatibility = void 0;
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var mathRandomSeed = void 0;
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var inputSourceMap = void 0;
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var outputSourceMap = void 0;
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var statsFileName = void 0;
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var maxStackDepth = void 0;
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var timeout = void 0;
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var additionalFunctions = void 0;
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var lazyObjectsRuntime = void 0;
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var heapGraphFilePath = void 0;
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var debugInFilePath = void 0;
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var debugOutFilePath = void 0;
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var flags = {
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initializeMoreModules: false,
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trace: false,
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debugNames: false,
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omitInvariants: false,
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inlineExpressions: false,
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simpleClosures: false,
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abstractEffectsInAdditionalFunctions: false,
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logStatistics: false,
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logModules: false,
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delayInitializations: false,
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delayUnsupportedRequires: false,
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accelerateUnsupportedRequires: true,
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internalDebug: false,
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debugScopes: false,
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serialize: false,
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residual: false,
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profile: false,
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reactEnabled: false,
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reactOutput: "create-element"
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};
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while (args.length) {
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var arg = args.shift();
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if (!arg.startsWith("--")) {
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inputFilenames.push(arg);
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} else {
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arg = arg.slice(2);
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switch (arg) {
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case "out":
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arg = args.shift();
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outputFilename = arg;
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break;
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case "compatibility":
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arg = args.shift();
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if (!CompatibilityValues.includes(arg)) {
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console.error("Unsupported compatibility: " + arg);
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process.exit(1);
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}
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compatibility = arg;
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break;
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case "mathRandomSeed":
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mathRandomSeed = args.shift();
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break;
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case "srcmapIn":
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inputSourceMap = args.shift();
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break;
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case "srcmapOut":
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outputSourceMap = args.shift();
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break;
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case "statsFile":
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statsFileName = args.shift();
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break;
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case "maxStackDepth":
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var value = args.shift();
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if (isNaN(value)) {
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console.error("Stack depth value must be a number");
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process.exit(1);
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}
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maxStackDepth = parseInt(value, 10);
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break;
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case "timeout":
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var seconds = args.shift();
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if (isNaN(seconds)) {
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console.error("Timeout must be a number");
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process.exit(1);
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}
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timeout = parseInt(seconds, 10) * 1000;
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break;
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case "additionalFunctions":
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var line = args.shift();
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additionalFunctions = line.split(",");
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break;
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case "debugInFilePath":
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debugInFilePath = args.shift();
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break;
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case "debugOutFilePath":
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debugOutFilePath = args.shift();
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break;
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case "lazyObjectsRuntime":
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lazyObjectsRuntime = args.shift();
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break;
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case "heapGraphFilePath":
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heapGraphFilePath = args.shift();
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break;
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case "help":
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console.log("Usage: prepack.js [ -- | input.js ] [ --out output.js ] [ --compatibility jsc ] [ --mathRandomSeed seedvalue ] [ --srcmapIn inputMap ] [ --srcmapOut outputMap ] [ --maxStackDepth depthValue ] [ --timeout seconds ] [ --additionalFunctions fnc1,fnc2,... ] [ --lazyObjectsRuntime lazyObjectsRuntimeName] [ --heapGraphFilePath heapGraphFilePath]" + Object.keys(flags).map(function (s) {
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return "[ --" + s + "]";
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}).join(" ") + "\n" + HELP_STR);
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return;
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case "version":
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console.log(_package.version);
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return;
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default:
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if (arg in flags) {
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flags[arg] = true;
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} else {
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console.error("Unknown option: " + arg);
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process.exit(1);
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}
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}
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}
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}
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if (!flags.serialize && !flags.residual) flags.serialize = true;
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var resolvedOptions = Object.assign({}, {
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compatibility: compatibility,
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mathRandomSeed: mathRandomSeed,
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inputSourceMapFilename: inputSourceMap,
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errorHandler: errorHandler,
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sourceMaps: !!outputSourceMap,
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maxStackDepth: maxStackDepth,
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timeout: timeout,
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additionalFunctions: additionalFunctions,
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lazyObjectsRuntime: lazyObjectsRuntime,
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heapGraphFormat: "DotLanguage",
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debugInFilePath: debugInFilePath,
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debugOutFilePath: debugOutFilePath
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}, flags);
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if (lazyObjectsRuntime && (resolvedOptions.additionalFunctions || resolvedOptions.delayInitializations || resolvedOptions.inlineExpressions)) {
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console.error("lazy objects feature is incompatible with additionalFunctions, delayInitializations and inlineExpressions options");
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process.exit(1);
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}
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var errors = new Map();
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function errorHandler(diagnostic) {
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if (diagnostic.location) errors.set(diagnostic.location, diagnostic);
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return "Recover";
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}
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function printDiagnostics() {
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var foundFatal = false;
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if (errors.size > 0) {
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console.error("Errors found while prepacking");
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var _iteratorNormalCompletion = true;
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var _didIteratorError = false;
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var _iteratorError = undefined;
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try {
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for (var _iterator = errors[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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var _ref = _step.value;
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var _ref2 = _slicedToArray(_ref, 2);
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var loc = _ref2[0];
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var error = _ref2[1];
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var sourceMessage = "";
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switch (loc.source) {
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case "":
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sourceMessage = "In an unknown source file";
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break;
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case "no-filename-specified":
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sourceMessage = "In stdin";
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break;
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default:
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// flow made me do this || ""
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sourceMessage = "In input file " + (loc.source || "");
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break;
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}
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foundFatal = foundFatal || error.severity === "FatalError";
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console.error(sourceMessage + "(" + loc.start.line + ":" + (loc.start.column + 1) + ") " + error.severity + " " + error.errorCode + ": " + error.message + (" (https://github.com/facebook/prepack/wiki/" + error.errorCode + ")"));
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if (foundFatal) {
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console.error(error.callStack || "");
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}
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}
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} catch (err) {
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_didIteratorError = true;
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_iteratorError = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion && _iterator.return) {
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_iterator.return();
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}
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} finally {
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if (_didIteratorError) {
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throw _iteratorError;
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}
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}
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}
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}
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return foundFatal;
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}
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try {
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if (inputFilenames.length === 0) {
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prepackStdin(resolvedOptions, processSerializedCode);
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return;
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}
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var serialized = prepackFileSync(inputFilenames, resolvedOptions);
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processSerializedCode(null, serialized);
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} catch (err) {
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//FatalErrors must have generated at least one CompilerDiagnostic.
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if (err instanceof FatalError) {
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(0, _invariant2.default)(errors.size > 0, "FatalError must generate at least one CompilerDiagnostic");
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} else {
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// if it is not a FatalError, it means prepack failed, and we should display the CompilerDiagnostics and stack trace.
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printDiagnostics();
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console.error(err.stack);
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process.exit(1);
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}
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} finally {
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var foundFatal = printDiagnostics();
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if (foundFatal) process.exit(1);
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}
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function processSerializedCode(err, serialized) {
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//FatalErrors must have generated at least one CompilerDiagnostic.
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if (err && err instanceof FatalError) {
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(0, _invariant2.default)(errors.size > 0, "FatalError must generate at least one CompilerDiagnostic");
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}
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if (err && !(err instanceof FatalError)) {
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// if it is not a FatalError, it means prepack failed, and we should display the CompilerDiagnostics and stack trace.
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printDiagnostics();
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console.error(err);
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process.exit(1);
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}
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// we print the non-fatal diagnostics. We test again if there is any FatalError-level CompilerDiagnostics that wouldn't have thrown a FatalError.
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var foundFatal = printDiagnostics();
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if (foundFatal) process.exit(1);
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if (serialized) {
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if (serialized.code === "") {
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console.error("Prepack returned empty code.");
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return;
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}
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if (outputFilename) {
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console.log("Prepacked source code written to " + outputFilename + ".");
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fs.writeFileSync(outputFilename, serialized.code);
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} else {
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console.log(serialized.code);
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}
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if (statsFileName) {
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if (serialized.statistics === undefined || serialized.timingStats === undefined) {
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return;
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}
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var stats = {
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SerializerStatistics: serialized.statistics,
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TimingStatistics: serialized.timingStats,
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MemoryStatistics: _v2.default.getHeapStatistics()
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};
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fs.writeFileSync(statsFileName, JSON.stringify(stats));
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}
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if (outputSourceMap) {
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fs.writeFileSync(outputSourceMap, serialized.map ? JSON.stringify(serialized.map) : "");
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}
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if (heapGraphFilePath) {
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(0, _invariant2.default)(serialized.heapGraph);
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fs.writeFileSync(heapGraphFilePath, serialized.heapGraph);
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}
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}
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}
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return true;
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}
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if (typeof __residual === "function") {
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// If we're running inside of Prepack. This is the residual function we'll
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// want to leave untouched in the final program.
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__residual("boolean", run, Object, Array, console, JSON, process, _prepackNode.prepackStdin, _prepackNode.prepackFileSync, _errors.FatalError, _options.CompatibilityValues, _fs2.default);
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} else {
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run(Object, Array, console, JSON, process, _prepackNode.prepackStdin, _prepackNode.prepackFileSync, _errors.FatalError, _options.CompatibilityValues, _fs2.default);
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}
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//# sourceMappingURL=prepack-cli.js.map
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