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diff --git a/deps/npm/node_modules/readable-stream/node_modules/unreachable-branch-transform/node_modules/recast/node_modules/source-map/lib/util.js b/deps/npm/node_modules/readable-stream/node_modules/unreachable-branch-transform/node_modules/recast/node_modules/source-map/lib/util.js
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--- a/deps/npm/node_modules/readable-stream/node_modules/unreachable-branch-transform/node_modules/recast/node_modules/source-map/lib/util.js
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@@ -1,369 +0,0 @@
-/* -*- Mode: js; js-indent-level: 2; -*- */
-/*
- * Copyright 2011 Mozilla Foundation and contributors
- * Licensed under the New BSD license. See LICENSE or:
- * http://opensource.org/licenses/BSD-3-Clause
- */
-{
- /**
- * This is a helper function for getting values from parameter/options
- * objects.
- *
- * @param args The object we are extracting values from
- * @param name The name of the property we are getting.
- * @param defaultValue An optional value to return if the property is missing
- * from the object. If this is not specified and the property is missing, an
- * error will be thrown.
- */
- function getArg(aArgs, aName, aDefaultValue) {
- if (aName in aArgs) {
- return aArgs[aName];
- } else if (arguments.length === 3) {
- return aDefaultValue;
- } else {
- throw new Error('"' + aName + '" is a required argument.');
- }
- }
- exports.getArg = getArg;
-
- var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.]*)(?::(\d+))?(\S*)$/;
- var dataUrlRegexp = /^data:.+\,.+$/;
-
- function urlParse(aUrl) {
- var match = aUrl.match(urlRegexp);
- if (!match) {
- return null;
- }
- return {
- scheme: match[1],
- auth: match[2],
- host: match[3],
- port: match[4],
- path: match[5]
- };
- }
- exports.urlParse = urlParse;
-
- function urlGenerate(aParsedUrl) {
- var url = '';
- if (aParsedUrl.scheme) {
- url += aParsedUrl.scheme + ':';
- }
- url += '//';
- if (aParsedUrl.auth) {
- url += aParsedUrl.auth + '@';
- }
- if (aParsedUrl.host) {
- url += aParsedUrl.host;
- }
- if (aParsedUrl.port) {
- url += ":" + aParsedUrl.port
- }
- if (aParsedUrl.path) {
- url += aParsedUrl.path;
- }
- return url;
- }
- exports.urlGenerate = urlGenerate;
-
- /**
- * Normalizes a path, or the path portion of a URL:
- *
- * - Replaces consequtive slashes with one slash.
- * - Removes unnecessary '.' parts.
- * - Removes unnecessary '<dir>/..' parts.
- *
- * Based on code in the Node.js 'path' core module.
- *
- * @param aPath The path or url to normalize.
- */
- function normalize(aPath) {
- var path = aPath;
- var url = urlParse(aPath);
- if (url) {
- if (!url.path) {
- return aPath;
- }
- path = url.path;
- }
- var isAbsolute = exports.isAbsolute(path);
-
- var parts = path.split(/\/+/);
- for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
- part = parts[i];
- if (part === '.') {
- parts.splice(i, 1);
- } else if (part === '..') {
- up++;
- } else if (up > 0) {
- if (part === '') {
- // The first part is blank if the path is absolute. Trying to go
- // above the root is a no-op. Therefore we can remove all '..' parts
- // directly after the root.
- parts.splice(i + 1, up);
- up = 0;
- } else {
- parts.splice(i, 2);
- up--;
- }
- }
- }
- path = parts.join('/');
-
- if (path === '') {
- path = isAbsolute ? '/' : '.';
- }
-
- if (url) {
- url.path = path;
- return urlGenerate(url);
- }
- return path;
- }
- exports.normalize = normalize;
-
- /**
- * Joins two paths/URLs.
- *
- * @param aRoot The root path or URL.
- * @param aPath The path or URL to be joined with the root.
- *
- * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
- * scheme-relative URL: Then the scheme of aRoot, if any, is prepended
- * first.
- * - Otherwise aPath is a path. If aRoot is a URL, then its path portion
- * is updated with the result and aRoot is returned. Otherwise the result
- * is returned.
- * - If aPath is absolute, the result is aPath.
- * - Otherwise the two paths are joined with a slash.
- * - Joining for example 'http://' and 'www.example.com' is also supported.
- */
- function join(aRoot, aPath) {
- if (aRoot === "") {
- aRoot = ".";
- }
- if (aPath === "") {
- aPath = ".";
- }
- var aPathUrl = urlParse(aPath);
- var aRootUrl = urlParse(aRoot);
- if (aRootUrl) {
- aRoot = aRootUrl.path || '/';
- }
-
- // `join(foo, '//www.example.org')`
- if (aPathUrl && !aPathUrl.scheme) {
- if (aRootUrl) {
- aPathUrl.scheme = aRootUrl.scheme;
- }
- return urlGenerate(aPathUrl);
- }
-
- if (aPathUrl || aPath.match(dataUrlRegexp)) {
- return aPath;
- }
-
- // `join('http://', 'www.example.com')`
- if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
- aRootUrl.host = aPath;
- return urlGenerate(aRootUrl);
- }
-
- var joined = aPath.charAt(0) === '/'
- ? aPath
- : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);
-
- if (aRootUrl) {
- aRootUrl.path = joined;
- return urlGenerate(aRootUrl);
- }
- return joined;
- }
- exports.join = join;
-
- exports.isAbsolute = function (aPath) {
- return aPath.charAt(0) === '/' || !!aPath.match(urlRegexp);
- };
-
- /**
- * Make a path relative to a URL or another path.
- *
- * @param aRoot The root path or URL.
- * @param aPath The path or URL to be made relative to aRoot.
- */
- function relative(aRoot, aPath) {
- if (aRoot === "") {
- aRoot = ".";
- }
-
- aRoot = aRoot.replace(/\/$/, '');
-
- // It is possible for the path to be above the root. In this case, simply
- // checking whether the root is a prefix of the path won't work. Instead, we
- // need to remove components from the root one by one, until either we find
- // a prefix that fits, or we run out of components to remove.
- var level = 0;
- while (aPath.indexOf(aRoot + '/') !== 0) {
- var index = aRoot.lastIndexOf("/");
- if (index < 0) {
- return aPath;
- }
-
- // If the only part of the root that is left is the scheme (i.e. http://,
- // file:///, etc.), one or more slashes (/), or simply nothing at all, we
- // have exhausted all components, so the path is not relative to the root.
- aRoot = aRoot.slice(0, index);
- if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
- return aPath;
- }
-
- ++level;
- }
-
- // Make sure we add a "../" for each component we removed from the root.
- return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1);
- }
- exports.relative = relative;
-
- /**
- * Because behavior goes wacky when you set `__proto__` on objects, we
- * have to prefix all the strings in our set with an arbitrary character.
- *
- * See https://github.com/mozilla/source-map/pull/31 and
- * https://github.com/mozilla/source-map/issues/30
- *
- * @param String aStr
- */
- function toSetString(aStr) {
- return '$' + aStr;
- }
- exports.toSetString = toSetString;
-
- function fromSetString(aStr) {
- return aStr.substr(1);
- }
- exports.fromSetString = fromSetString;
-
- /**
- * Comparator between two mappings where the original positions are compared.
- *
- * Optionally pass in `true` as `onlyCompareGenerated` to consider two
- * mappings with the same original source/line/column, but different generated
- * line and column the same. Useful when searching for a mapping with a
- * stubbed out mapping.
- */
- function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
- var cmp = mappingA.source - mappingB.source;
- if (cmp !== 0) {
- return cmp;
- }
-
- cmp = mappingA.originalLine - mappingB.originalLine;
- if (cmp !== 0) {
- return cmp;
- }
-
- cmp = mappingA.originalColumn - mappingB.originalColumn;
- if (cmp !== 0 || onlyCompareOriginal) {
- return cmp;
- }
-
- cmp = mappingA.generatedColumn - mappingB.generatedColumn;
- if (cmp !== 0) {
- return cmp;
- }
-
- cmp = mappingA.generatedLine - mappingB.generatedLine;
- if (cmp !== 0) {
- return cmp;
- }
-
- return mappingA.name - mappingB.name;
- }
- exports.compareByOriginalPositions = compareByOriginalPositions;
-
- /**
- * Comparator between two mappings with deflated source and name indices where
- * the generated positions are compared.
- *
- * Optionally pass in `true` as `onlyCompareGenerated` to consider two
- * mappings with the same generated line and column, but different
- * source/name/original line and column the same. Useful when searching for a
- * mapping with a stubbed out mapping.
- */
- function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) {
- var cmp = mappingA.generatedLine - mappingB.generatedLine;
- if (cmp !== 0) {
- return cmp;
- }
-
- cmp = mappingA.generatedColumn - mappingB.generatedColumn;
- if (cmp !== 0 || onlyCompareGenerated) {
- return cmp;
- }
-
- cmp = mappingA.source - mappingB.source;
- if (cmp !== 0) {
- return cmp;
- }
-
- cmp = mappingA.originalLine - mappingB.originalLine;
- if (cmp !== 0) {
- return cmp;
- }
-
- cmp = mappingA.originalColumn - mappingB.originalColumn;
- if (cmp !== 0) {
- return cmp;
- }
-
- return mappingA.name - mappingB.name;
- }
- exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated;
-
- function strcmp(aStr1, aStr2) {
- if (aStr1 === aStr2) {
- return 0;
- }
-
- if (aStr1 > aStr2) {
- return 1;
- }
-
- return -1;
- }
-
- /**
- * Comparator between two mappings with inflated source and name strings where
- * the generated positions are compared.
- */
- function compareByGeneratedPositionsInflated(mappingA, mappingB) {
- var cmp = mappingA.generatedLine - mappingB.generatedLine;
- if (cmp !== 0) {
- return cmp;
- }
-
- cmp = mappingA.generatedColumn - mappingB.generatedColumn;
- if (cmp !== 0) {
- return cmp;
- }
-
- cmp = strcmp(mappingA.source, mappingB.source);
- if (cmp !== 0) {
- return cmp;
- }
-
- cmp = mappingA.originalLine - mappingB.originalLine;
- if (cmp !== 0) {
- return cmp;
- }
-
- cmp = mappingA.originalColumn - mappingB.originalColumn;
- if (cmp !== 0) {
- return cmp;
- }
-
- return strcmp(mappingA.name, mappingB.name);
- }
- exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated;
-}
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