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diff --git a/node_modules/uglify-js/lib/propmangle.js b/node_modules/uglify-js/lib/propmangle.js
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--- a/node_modules/uglify-js/lib/propmangle.js
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-/***********************************************************************
-
- A JavaScript tokenizer / parser / beautifier / compressor.
- https://github.com/mishoo/UglifyJS2
-
- -------------------------------- (C) ---------------------------------
-
- Author: Mihai Bazon
- <mihai.bazon@gmail.com>
- http://mihai.bazon.net/blog
-
- Distributed under the BSD license:
-
- Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com>
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above
- copyright notice, this list of conditions and the following
- disclaimer.
-
- * Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the following
- disclaimer in the documentation and/or other materials
- provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
- EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
- OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
- THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- SUCH DAMAGE.
-
- ***********************************************************************/
-
-"use strict";
-
-function find_builtins() {
- // NaN will be included due to Number.NaN
- var a = [
- "null",
- "true",
- "false",
- "Infinity",
- "-Infinity",
- "undefined",
- ];
- [ Object, Array, Function, Number,
- String, Boolean, Error, Math,
- Date, RegExp
- ].forEach(function(ctor){
- Object.getOwnPropertyNames(ctor).map(add);
- if (ctor.prototype) {
- Object.getOwnPropertyNames(ctor.prototype).map(add);
- }
- });
- function add(name) {
- push_uniq(a, name);
- }
- return a;
-}
-
-function mangle_properties(ast, options) {
- options = defaults(options, {
- cache: null,
- debug: false,
- ignore_quoted: false,
- only_cache: false,
- regex: null,
- reserved: null,
- });
-
- var reserved = options.reserved;
- if (reserved == null)
- reserved = find_builtins();
-
- var cache = options.cache;
- if (cache == null) {
- cache = {
- cname: -1,
- props: new Dictionary()
- };
- }
-
- var regex = options.regex;
- var ignore_quoted = options.ignore_quoted;
-
- // note debug is either false (disabled), or a string of the debug suffix to use (enabled).
- // note debug may be enabled as an empty string, which is falsey. Also treat passing 'true'
- // the same as passing an empty string.
- var debug = (options.debug !== false);
- var debug_name_suffix;
- if (debug) {
- debug_name_suffix = (options.debug === true ? "" : options.debug);
- }
-
- var names_to_mangle = [];
- var unmangleable = [];
- var ignored = {};
-
- // step 1: find candidates to mangle
- ast.walk(new TreeWalker(function(node){
- if (node instanceof AST_ObjectKeyVal) {
- add(node.key, ignore_quoted && node.quote);
- }
- else if (node instanceof AST_ObjectProperty) {
- // setter or getter, since KeyVal is handled above
- add(node.key.name);
- }
- else if (node instanceof AST_Dot) {
- add(node.property);
- }
- else if (node instanceof AST_Sub) {
- addStrings(node.property, ignore_quoted);
- }
- }));
-
- // step 2: transform the tree, renaming properties
- return ast.transform(new TreeTransformer(function(node){
- if (node instanceof AST_ObjectKeyVal) {
- if (!(ignore_quoted && node.quote))
- node.key = mangle(node.key);
- }
- else if (node instanceof AST_ObjectProperty) {
- // setter or getter
- node.key.name = mangle(node.key.name);
- }
- else if (node instanceof AST_Dot) {
- node.property = mangle(node.property);
- }
- else if (node instanceof AST_Sub) {
- if (!ignore_quoted)
- node.property = mangleStrings(node.property);
- }
- // else if (node instanceof AST_String) {
- // if (should_mangle(node.value)) {
- // AST_Node.warn(
- // "Found \"{prop}\" property candidate for mangling in an arbitrary string [{file}:{line},{col}]", {
- // file : node.start.file,
- // line : node.start.line,
- // col : node.start.col,
- // prop : node.value
- // }
- // );
- // }
- // }
- }));
-
- // only function declarations after this line
-
- function can_mangle(name) {
- if (unmangleable.indexOf(name) >= 0) return false;
- if (reserved.indexOf(name) >= 0) return false;
- if (options.only_cache) {
- return cache.props.has(name);
- }
- if (/^-?[0-9]+(\.[0-9]+)?(e[+-][0-9]+)?$/.test(name)) return false;
- return true;
- }
-
- function should_mangle(name) {
- if (ignore_quoted && name in ignored) return false;
- if (regex && !regex.test(name)) return false;
- if (reserved.indexOf(name) >= 0) return false;
- return cache.props.has(name)
- || names_to_mangle.indexOf(name) >= 0;
- }
-
- function add(name, ignore) {
- if (ignore) {
- ignored[name] = true;
- return;
- }
-
- if (can_mangle(name))
- push_uniq(names_to_mangle, name);
-
- if (!should_mangle(name)) {
- push_uniq(unmangleable, name);
- }
- }
-
- function mangle(name) {
- if (!should_mangle(name)) {
- return name;
- }
-
- var mangled = cache.props.get(name);
- if (!mangled) {
- if (debug) {
- // debug mode: use a prefix and suffix to preserve readability, e.g. o.foo -> o._$foo$NNN_.
- var debug_mangled = "_$" + name + "$" + debug_name_suffix + "_";
-
- if (can_mangle(debug_mangled) && !(ignore_quoted && debug_mangled in ignored)) {
- mangled = debug_mangled;
- }
- }
-
- // either debug mode is off, or it is on and we could not use the mangled name
- if (!mangled) {
- // note can_mangle() does not check if the name collides with the 'ignored' set
- // (filled with quoted properties when ignore_quoted set). Make sure we add this
- // check so we don't collide with a quoted name.
- do {
- mangled = base54(++cache.cname);
- } while (!can_mangle(mangled) || (ignore_quoted && mangled in ignored));
- }
-
- cache.props.set(name, mangled);
- }
- return mangled;
- }
-
- function addStrings(node, ignore) {
- var out = {};
- try {
- (function walk(node){
- node.walk(new TreeWalker(function(node){
- if (node instanceof AST_Seq) {
- walk(node.cdr);
- return true;
- }
- if (node instanceof AST_String) {
- add(node.value, ignore);
- return true;
- }
- if (node instanceof AST_Conditional) {
- walk(node.consequent);
- walk(node.alternative);
- return true;
- }
- throw out;
- }));
- })(node);
- } catch(ex) {
- if (ex !== out) throw ex;
- }
- }
-
- function mangleStrings(node) {
- return node.transform(new TreeTransformer(function(node){
- if (node instanceof AST_Seq) {
- node.cdr = mangleStrings(node.cdr);
- }
- else if (node instanceof AST_String) {
- node.value = mangle(node.value);
- }
- else if (node instanceof AST_Conditional) {
- node.consequent = mangleStrings(node.consequent);
- node.alternative = mangleStrings(node.alternative);
- }
- return node;
- }));
- }
-
-}
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