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416
VISUALIZACION/node_modules/parcel-bundler/lib/Bundle.js
generated
vendored
Executable file
416
VISUALIZACION/node_modules/parcel-bundler/lib/Bundle.js
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'use strict';
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function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }
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const Path = require('path');
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const crypto = require('crypto');
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/**
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* A Bundle represents an output file, containing multiple assets. Bundles can have
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* child bundles, which are bundles that are loaded dynamically from this bundle.
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* Child bundles are also produced when importing an asset of a different type from
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* the bundle, e.g. importing a CSS file from JS.
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*/
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class Bundle {
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constructor(type, name, parent) {
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this.type = type;
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this.name = name;
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this.parentBundle = parent;
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this.entryAsset = null;
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this.assets = new Set();
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this.childBundles = new Set();
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this.siblingBundles = new Set();
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this.siblingBundlesMap = new Map();
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this.offsets = new Map();
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this.totalSize = 0;
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this.bundleTime = 0;
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}
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static createWithAsset(asset, parentBundle) {
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let bundle = new Bundle(asset.type, Path.join(asset.options.outDir, asset.generateBundleName()), parentBundle);
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bundle.entryAsset = asset;
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bundle.addAsset(asset);
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return bundle;
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}
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addAsset(asset) {
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asset.bundles.add(this);
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this.assets.add(asset);
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}
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removeAsset(asset) {
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asset.bundles.delete(this);
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this.assets.delete(asset);
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}
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addOffset(asset, line) {
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this.offsets.set(asset, line);
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}
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getOffset(asset) {
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return this.offsets.get(asset) || 0;
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}
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getSiblingBundle(type) {
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if (!type || type === this.type) {
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return this;
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}
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if (!this.siblingBundlesMap.has(type)) {
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let bundle = new Bundle(type, Path.join(Path.dirname(this.name), Path.basename(this.name, Path.extname(this.name)) + '.' + type), this);
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this.childBundles.add(bundle);
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this.siblingBundles.add(bundle);
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this.siblingBundlesMap.set(type, bundle);
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}
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return this.siblingBundlesMap.get(type);
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}
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createChildBundle(entryAsset) {
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let bundle = Bundle.createWithAsset(entryAsset, this);
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this.childBundles.add(bundle);
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return bundle;
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}
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createSiblingBundle(entryAsset) {
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let bundle = this.createChildBundle(entryAsset);
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this.siblingBundles.add(bundle);
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return bundle;
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}
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get isEmpty() {
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return this.assets.size === 0;
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}
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getBundleNameMap(contentHash, hashes = new Map()) {
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if (this.name) {
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let hashedName = this.getHashedBundleName(contentHash);
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hashes.set(Path.basename(this.name), hashedName);
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this.name = Path.join(Path.dirname(this.name), hashedName);
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}
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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 = this.childBundles.values()[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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let child = _step.value;
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child.getBundleNameMap(contentHash, hashes);
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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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return hashes;
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}
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getHashedBundleName(contentHash) {
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// If content hashing is enabled, generate a hash from all assets in the bundle.
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// Otherwise, use a hash of the filename so it remains consistent across builds.
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let ext = Path.extname(this.name);
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let hash = (contentHash ? this.getHash() : Path.basename(this.name, ext)).slice(-8);
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let entryAsset = this.entryAsset || this.parentBundle.entryAsset;
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let name = Path.basename(entryAsset.name, Path.extname(entryAsset.name));
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let isMainEntry = entryAsset.options.entryFiles[0] === entryAsset.name;
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let isEntry = entryAsset.options.entryFiles.includes(entryAsset.name) || Array.from(entryAsset.parentDeps).some(dep => dep.entry);
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// If this is the main entry file, use the output file option as the name if provided.
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if (isMainEntry && entryAsset.options.outFile) {
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let extname = Path.extname(entryAsset.options.outFile);
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if (extname) {
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ext = this.entryAsset ? extname : ext;
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name = Path.basename(entryAsset.options.outFile, extname);
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} else {
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name = entryAsset.options.outFile;
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}
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}
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// If this is an entry asset, don't hash. Return a relative path
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// from the main file so we keep the original file paths.
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if (isEntry) {
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return Path.join(Path.relative(entryAsset.options.rootDir, Path.dirname(entryAsset.name)), name + ext);
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}
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// If this is an index file, use the parent directory name instead
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// which is probably more descriptive.
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if (name === 'index') {
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name = Path.basename(Path.dirname(entryAsset.name));
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}
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// Add the content hash and extension.
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return name + '.' + hash + ext;
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}
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package(bundler, oldHashes, newHashes = new Map()) {
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var _this = this;
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return _asyncToGenerator(function* () {
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let promises = [];
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let mappings = [];
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if (!_this.isEmpty) {
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let hash = _this.getHash();
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newHashes.set(_this.name, hash);
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if (!oldHashes || oldHashes.get(_this.name) !== hash) {
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promises.push(_this._package(bundler));
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}
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}
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var _iteratorNormalCompletion2 = true;
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var _didIteratorError2 = false;
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var _iteratorError2 = undefined;
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try {
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for (var _iterator2 = _this.childBundles.values()[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
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let bundle = _step2.value;
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if (bundle.type === 'map') {
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mappings.push(bundle);
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} else {
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promises.push(bundle.package(bundler, oldHashes, newHashes));
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}
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}
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} catch (err) {
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_didIteratorError2 = true;
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_iteratorError2 = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion2 && _iterator2.return) {
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_iterator2.return();
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}
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} finally {
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if (_didIteratorError2) {
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throw _iteratorError2;
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}
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}
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}
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yield Promise.all(promises);
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var _iteratorNormalCompletion3 = true;
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var _didIteratorError3 = false;
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var _iteratorError3 = undefined;
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try {
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for (var _iterator3 = mappings[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
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let bundle = _step3.value;
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yield bundle.package(bundler, oldHashes, newHashes);
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}
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} catch (err) {
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_didIteratorError3 = true;
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_iteratorError3 = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion3 && _iterator3.return) {
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_iterator3.return();
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}
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} finally {
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if (_didIteratorError3) {
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throw _iteratorError3;
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}
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}
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}
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return newHashes;
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})();
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}
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_package(bundler) {
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var _this2 = this;
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return _asyncToGenerator(function* () {
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let Packager = bundler.packagers.get(_this2.type);
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let packager = new Packager(_this2, bundler);
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let startTime = Date.now();
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yield packager.setup();
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yield packager.start();
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let included = new Set();
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var _iteratorNormalCompletion4 = true;
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var _didIteratorError4 = false;
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var _iteratorError4 = undefined;
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try {
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for (var _iterator4 = _this2.assets[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
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let asset = _step4.value;
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yield _this2._addDeps(asset, packager, included);
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}
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} catch (err) {
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_didIteratorError4 = true;
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_iteratorError4 = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion4 && _iterator4.return) {
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_iterator4.return();
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}
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} finally {
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if (_didIteratorError4) {
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throw _iteratorError4;
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}
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}
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}
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yield packager.end();
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_this2.bundleTime = Date.now() - startTime;
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var _iteratorNormalCompletion5 = true;
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var _didIteratorError5 = false;
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var _iteratorError5 = undefined;
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try {
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for (var _iterator5 = _this2.assets[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
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let asset = _step5.value;
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_this2.bundleTime += asset.buildTime;
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}
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} catch (err) {
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_didIteratorError5 = true;
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_iteratorError5 = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion5 && _iterator5.return) {
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_iterator5.return();
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}
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} finally {
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if (_didIteratorError5) {
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throw _iteratorError5;
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}
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}
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}
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})();
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}
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_addDeps(asset, packager, included) {
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var _this3 = this;
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return _asyncToGenerator(function* () {
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if (!_this3.assets.has(asset) || included.has(asset)) {
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return;
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}
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included.add(asset);
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var _iteratorNormalCompletion6 = true;
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var _didIteratorError6 = false;
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var _iteratorError6 = undefined;
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try {
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for (var _iterator6 = asset.depAssets.values()[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
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let depAsset = _step6.value;
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yield _this3._addDeps(depAsset, packager, included);
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}
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} catch (err) {
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_didIteratorError6 = true;
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_iteratorError6 = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion6 && _iterator6.return) {
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_iterator6.return();
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}
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} finally {
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if (_didIteratorError6) {
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throw _iteratorError6;
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}
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}
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}
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yield packager.addAsset(asset);
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const assetSize = packager.getSize() - _this3.totalSize;
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if (assetSize > 0) {
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_this3.addAssetSize(asset, assetSize);
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}
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})();
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}
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addAssetSize(asset, size) {
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asset.bundledSize = size;
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this.totalSize += size;
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}
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getParents() {
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let parents = [];
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let bundle = this;
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while (bundle) {
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parents.push(bundle);
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bundle = bundle.parentBundle;
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}
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return parents;
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}
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findCommonAncestor(bundle) {
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// Get a list of parent bundles going up to the root
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let ourParents = this.getParents();
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let theirParents = bundle.getParents();
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// Start from the root bundle, and find the first bundle that's different
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let a = ourParents.pop();
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let b = theirParents.pop();
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let last;
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while (a === b && ourParents.length > 0 && theirParents.length > 0) {
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last = a;
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a = ourParents.pop();
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b = theirParents.pop();
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}
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if (a === b) {
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// One bundle descended from the other
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return a;
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}
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return last;
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}
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getHash() {
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let hash = crypto.createHash('md5');
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var _iteratorNormalCompletion7 = true;
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var _didIteratorError7 = false;
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var _iteratorError7 = undefined;
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try {
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for (var _iterator7 = this.assets[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
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let asset = _step7.value;
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hash.update(asset.hash);
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}
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} catch (err) {
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_didIteratorError7 = true;
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_iteratorError7 = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion7 && _iterator7.return) {
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_iterator7.return();
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}
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} finally {
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if (_didIteratorError7) {
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throw _iteratorError7;
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}
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}
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}
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return hash.digest('hex');
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}
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}
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module.exports = Bundle;
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