/*! blanket - v1.2.1 */

(function(define){
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.acorn = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){


// The main exported interface (under `self.acorn` when in the
// browser) is a `parse` function that takes a code string and
// returns an abstract syntax tree as specified by [Mozilla parser
// API][api].
//
// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API

"use strict";

exports.parse = parse;

// This function tries to parse a single expression at a given
// offset in a string. Useful for parsing mixed-language formats
// that embed JavaScript expressions.

exports.parseExpressionAt = parseExpressionAt;

// Acorn is organized as a tokenizer and a recursive-descent parser.
// The `tokenize` export provides an interface to the tokenizer.

exports.tokenizer = tokenizer;
exports.__esModule = true;
// Acorn is a tiny, fast JavaScript parser written in JavaScript.
//
// Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and
// various contributors and released under an MIT license.
//
// Git repositories for Acorn are available at
//
//     http://marijnhaverbeke.nl/git/acorn
//     https://github.com/marijnh/acorn.git
//
// Please use the [github bug tracker][ghbt] to report issues.
//
// [ghbt]: https://github.com/marijnh/acorn/issues
//
// This file defines the main parser interface. The library also comes
// with a [error-tolerant parser][dammit] and an
// [abstract syntax tree walker][walk], defined in other files.
//
// [dammit]: acorn_loose.js
// [walk]: util/walk.js

var _state = _dereq_("./state");

var Parser = _state.Parser;

var _options = _dereq_("./options");

var getOptions = _options.getOptions;

_dereq_("./parseutil");

_dereq_("./statement");

_dereq_("./lval");

_dereq_("./expression");

exports.Parser = _state.Parser;
exports.plugins = _state.plugins;
exports.defaultOptions = _options.defaultOptions;

var _location = _dereq_("./location");

exports.SourceLocation = _location.SourceLocation;
exports.getLineInfo = _location.getLineInfo;
exports.Node = _dereq_("./node").Node;

var _tokentype = _dereq_("./tokentype");

exports.TokenType = _tokentype.TokenType;
exports.tokTypes = _tokentype.types;

var _tokencontext = _dereq_("./tokencontext");

exports.TokContext = _tokencontext.TokContext;
exports.tokContexts = _tokencontext.types;

var _identifier = _dereq_("./identifier");

exports.isIdentifierChar = _identifier.isIdentifierChar;
exports.isIdentifierStart = _identifier.isIdentifierStart;
exports.Token = _dereq_("./tokenize").Token;

var _whitespace = _dereq_("./whitespace");

exports.isNewLine = _whitespace.isNewLine;
exports.lineBreak = _whitespace.lineBreak;
exports.lineBreakG = _whitespace.lineBreakG;
var version = "1.2.2";exports.version = version;

function parse(input, options) {
  var p = parser(options, input);
  var startPos = p.pos,
      startLoc = p.options.locations && p.curPosition();
  p.nextToken();
  return p.parseTopLevel(p.options.program || p.startNodeAt(startPos, startLoc));
}

function parseExpressionAt(input, pos, options) {
  var p = parser(options, input, pos);
  p.nextToken();
  return p.parseExpression();
}

function tokenizer(input, options) {
  return parser(options, input);
}

function parser(options, input) {
  return new Parser(getOptions(options), String(input));
}

},{"./expression":6,"./identifier":7,"./location":8,"./lval":9,"./node":10,"./options":11,"./parseutil":12,"./state":13,"./statement":14,"./tokencontext":15,"./tokenize":16,"./tokentype":17,"./whitespace":19}],2:[function(_dereq_,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    ctor.prototype = Object.create(superCtor.prototype, {
      constructor: {
        value: ctor,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    var TempCtor = function () {}
    TempCtor.prototype = superCtor.prototype
    ctor.prototype = new TempCtor()
    ctor.prototype.constructor = ctor
  }
}

},{}],3:[function(_dereq_,module,exports){
// shim for using process in browser

var process = module.exports = {};
var queue = [];
var draining = false;

function drainQueue() {
    if (draining) {
        return;
    }
    draining = true;
    var currentQueue;
    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        var i = -1;
        while (++i < len) {
            currentQueue[i]();
        }
        len = queue.length;
    }
    draining = false;
}
process.nextTick = function (fun) {
    queue.push(fun);
    if (!draining) {
        setTimeout(drainQueue, 0);
    }
};

process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],4:[function(_dereq_,module,exports){
module.exports = function isBuffer(arg) {
  return arg && typeof arg === 'object'
    && typeof arg.copy === 'function'
    && typeof arg.fill === 'function'
    && typeof arg.readUInt8 === 'function';
}
},{}],5:[function(_dereq_,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
  if (!isString(f)) {
    var objects = [];
    for (var i = 0; i < arguments.length; i++) {
      objects.push(inspect(arguments[i]));
    }
    return objects.join(' ');
  }

  var i = 1;
  var args = arguments;
  var len = args.length;
  var str = String(f).replace(formatRegExp, function(x) {
    if (x === '%%') return '%';
    if (i >= len) return x;
    switch (x) {
      case '%s': return String(args[i++]);
      case '%d': return Number(args[i++]);
      case '%j':
        try {
          return JSON.stringify(args[i++]);
        } catch (_) {
          return '[Circular]';
        }
      default:
        return x;
    }
  });
  for (var x = args[i]; i < len; x = args[++i]) {
    if (isNull(x) || !isObject(x)) {
      str += ' ' + x;
    } else {
      str += ' ' + inspect(x);
    }
  }
  return str;
};


// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
  // Allow for deprecating things in the process of starting up.
  if (isUndefined(global.process)) {
    return function() {
      return exports.deprecate(fn, msg).apply(this, arguments);
    };
  }

  if (process.noDeprecation === true) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (process.throwDeprecation) {
        throw new Error(msg);
      } else if (process.traceDeprecation) {
        console.trace(msg);
      } else {
        console.error(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
};


var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
  if (isUndefined(debugEnviron))
    debugEnviron = process.env.NODE_DEBUG || '';
  set = set.toUpperCase();
  if (!debugs[set]) {
    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
      var pid = process.pid;
      debugs[set] = function() {
        var msg = exports.format.apply(exports, arguments);
        console.error('%s %d: %s', set, pid, msg);
      };
    } else {
      debugs[set] = function() {};
    }
  }
  return debugs[set];
};


/**
 * Echos the value of a value. Trys to print the value out
 * in the best way possible given the different types.
 *
 * @param {Object} obj The object to print out.
 * @param {Object} opts Optional options object that alters the output.
 */
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
  // default options
  var ctx = {
    seen: [],
    stylize: stylizeNoColor
  };
  // legacy...
  if (arguments.length >= 3) ctx.depth = arguments[2];
  if (arguments.length >= 4) ctx.colors = arguments[3];
  if (isBoolean(opts)) {
    // legacy...
    ctx.showHidden = opts;
  } else if (opts) {
    // got an "options" object
    exports._extend(ctx, opts);
  }
  // set default options
  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
  if (isUndefined(ctx.depth)) ctx.depth = 2;
  if (isUndefined(ctx.colors)) ctx.colors = false;
  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
  if (ctx.colors) ctx.stylize = stylizeWithColor;
  return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;


// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
  'bold' : [1, 22],
  'italic' : [3, 23],
  'underline' : [4, 24],
  'inverse' : [7, 27],
  'white' : [37, 39],
  'grey' : [90, 39],
  'black' : [30, 39],
  'blue' : [34, 39],
  'cyan' : [36, 39],
  'green' : [32, 39],
  'magenta' : [35, 39],
  'red' : [31, 39],
  'yellow' : [33, 39]
};

// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
  'special': 'cyan',
  'number': 'yellow',
  'boolean': 'yellow',
  'undefined': 'grey',
  'null': 'bold',
  'string': 'green',
  'date': 'magenta',
  // "name": intentionally not styling
  'regexp': 'red'
};


function stylizeWithColor(str, styleType) {
  var style = inspect.styles[styleType];

  if (style) {
    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
           '\u001b[' + inspect.colors[style][1] + 'm';
  } else {
    return str;
  }
}


function stylizeNoColor(str, styleType) {
  return str;
}


function arrayToHash(array) {
  var hash = {};

  array.forEach(function(val, idx) {
    hash[val] = true;
  });

  return hash;
}


function formatValue(ctx, value, recurseTimes) {
  // Provide a hook for user-specified inspect functions.
  // Check that value is an object with an inspect function on it
  if (ctx.customInspect &&
      value &&
      isFunction(value.inspect) &&
      // Filter out the util module, it's inspect function is special
      value.inspect !== exports.inspect &&
      // Also filter out any prototype objects using the circular check.
      !(value.constructor && value.constructor.prototype === value)) {
    var ret = value.inspect(recurseTimes, ctx);
    if (!isString(ret)) {
      ret = formatValue(ctx, ret, recurseTimes);
    }
    return ret;
  }

  // Primitive types cannot have properties
  var primitive = formatPrimitive(ctx, value);
  if (primitive) {
    return primitive;
  }

  // Look up the keys of the object.
  var keys = Object.keys(value);
  var visibleKeys = arrayToHash(keys);

  if (ctx.showHidden) {
    keys = Object.getOwnPropertyNames(value);
  }

  // IE doesn't make error fields non-enumerable
  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
  if (isError(value)
      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
    return formatError(value);
  }

  // Some type of object without properties can be shortcutted.
  if (keys.length === 0) {
    if (isFunction(value)) {
      var name = value.name ? ': ' + value.name : '';
      return ctx.stylize('[Function' + name + ']', 'special');
    }
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    }
    if (isDate(value)) {
      return ctx.stylize(Date.prototype.toString.call(value), 'date');
    }
    if (isError(value)) {
      return formatError(value);
    }
  }

  var base = '', array = false, braces = ['{', '}'];

  // Make Array say that they are Array
  if (isArray(value)) {
    array = true;
    braces = ['[', ']'];
  }

  // Make functions say that they are functions
  if (isFunction(value)) {
    var n = value.name ? ': ' + value.name : '';
    base = ' [Function' + n + ']';
  }

  // Make RegExps say that they are RegExps
  if (isRegExp(value)) {
    base = ' ' + RegExp.prototype.toString.call(value);
  }

  // Make dates with properties first say the date
  if (isDate(value)) {
    base = ' ' + Date.prototype.toUTCString.call(value);
  }

  // Make error with message first say the error
  if (isError(value)) {
    base = ' ' + formatError(value);
  }

  if (keys.length === 0 && (!array || value.length == 0)) {
    return braces[0] + base + braces[1];
  }

  if (recurseTimes < 0) {
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    } else {
      return ctx.stylize('[Object]', 'special');
    }
  }

  ctx.seen.push(value);

  var output;
  if (array) {
    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
  } else {
    output = keys.map(function(key) {
      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
    });
  }

  ctx.seen.pop();

  return reduceToSingleString(output, base, braces);
}


function formatPrimitive(ctx, value) {
  if (isUndefined(value))
    return ctx.stylize('undefined', 'undefined');
  if (isString(value)) {
    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                                             .replace(/'/g, "\\'")
                                             .replace(/\\"/g, '"') + '\'';
    return ctx.stylize(simple, 'string');
  }
  if (isNumber(value))
    return ctx.stylize('' + value, 'number');
  if (isBoolean(value))
    return ctx.stylize('' + value, 'boolean');
  // For some reason typeof null is "object", so special case here.
  if (isNull(value))
    return ctx.stylize('null', 'null');
}


function formatError(value) {
  return '[' + Error.prototype.toString.call(value) + ']';
}


function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
  var output = [];
  for (var i = 0, l = value.length; i < l; ++i) {
    if (hasOwnProperty(value, String(i))) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          String(i), true));
    } else {
      output.push('');
    }
  }
  keys.forEach(function(key) {
    if (!key.match(/^\d+$/)) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          key, true));
    }
  });
  return output;
}


function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
  var name, str, desc;
  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
  if (desc.get) {
    if (desc.set) {
      str = ctx.stylize('[Getter/Setter]', 'special');
    } else {
      str = ctx.stylize('[Getter]', 'special');
    }
  } else {
    if (desc.set) {
      str = ctx.stylize('[Setter]', 'special');
    }
  }
  if (!hasOwnProperty(visibleKeys, key)) {
    name = '[' + key + ']';
  }
  if (!str) {
    if (ctx.seen.indexOf(desc.value) < 0) {
      if (isNull(recurseTimes)) {
        str = formatValue(ctx, desc.value, null);
      } else {
        str = formatValue(ctx, desc.value, recurseTimes - 1);
      }
      if (str.indexOf('\n') > -1) {
        if (array) {
          str = str.split('\n').map(function(line) {
            return '  ' + line;
          }).join('\n').substr(2);
        } else {
          str = '\n' + str.split('\n').map(function(line) {
            return '   ' + line;
          }).join('\n');
        }
      }
    } else {
      str = ctx.stylize('[Circular]', 'special');
    }
  }
  if (isUndefined(name)) {
    if (array && key.match(/^\d+$/)) {
      return str;
    }
    name = JSON.stringify('' + key);
    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
      name = name.substr(1, name.length - 2);
      name = ctx.stylize(name, 'name');
    } else {
      name = name.replace(/'/g, "\\'")
                 .replace(/\\"/g, '"')
                 .replace(/(^"|"$)/g, "'");
      name = ctx.stylize(name, 'string');
    }
  }

  return name + ': ' + str;
}


function reduceToSingleString(output, base, braces) {
  var numLinesEst = 0;
  var length = output.reduce(function(prev, cur) {
    numLinesEst++;
    if (cur.indexOf('\n') >= 0) numLinesEst++;
    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
  }, 0);

  if (length > 60) {
    return braces[0] +
           (base === '' ? '' : base + '\n ') +
           ' ' +
           output.join(',\n  ') +
           ' ' +
           braces[1];
  }

  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}


// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
  return Array.isArray(ar);
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return isObject(e) &&
      (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = _dereq_('./support/isBuffer');

function objectToString(o) {
  return Object.prototype.toString.call(o);
}


function pad(n) {
  return n < 10 ? '0' + n.toString(10) : n.toString(10);
}


var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
              'Oct', 'Nov', 'Dec'];

// 26 Feb 16:19:34
function timestamp() {
  var d = new Date();
  var time = [pad(d.getHours()),
              pad(d.getMinutes()),
              pad(d.getSeconds())].join(':');
  return [d.getDate(), months[d.getMonth()], time].join(' ');
}


// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};


/**
 * Inherit the prototype methods from one constructor into another.
 *
 * The Function.prototype.inherits from lang.js rewritten as a standalone
 * function (not on Function.prototype). NOTE: If this file is to be loaded
 * during bootstrapping this function needs to be rewritten using some native
 * functions as prototype setup using normal JavaScript does not work as
 * expected during bootstrapping (see mirror.js in r114903).
 *
 * @param {function} ctor Constructor function which needs to inherit the
 *     prototype.
 * @param {function} superCtor Constructor function to inherit prototype from.
 */
exports.inherits = _dereq_('inherits');

exports._extend = function(origin, add) {
  // Don't do anything if add isn't an object
  if (!add || !isObject(add)) return origin;

  var keys = Object.keys(add);
  var i = keys.length;
  while (i--) {
    origin[keys[i]] = add[keys[i]];
  }
  return origin;
};

function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

}).call(this,_dereq_('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":4,"_process":3,"inherits":2}],6:[function(_dereq_,module,exports){
// A recursive descent parser operates by defining functions for all
// syntactic elements, and recursively calling those, each function
// advancing the input stream and returning an AST node. Precedence
// of constructs (for example, the fact that `!x[1]` means `!(x[1])`
// instead of `(!x)[1]` is handled by the fact that the parser
// function that parses unary prefix operators is called first, and
// in turn calls the function that parses `[]` subscripts — that
// way, it'll receive the node for `x[1]` already parsed, and wraps
// *that* in the unary operator node.
//
// Acorn uses an [operator precedence parser][opp] to handle binary
// operator precedence, because it is much more compact than using
// the technique outlined above, which uses different, nesting
// functions to specify precedence, for all of the ten binary
// precedence levels that JavaScript defines.
//
// [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser

"use strict";

var tt = _dereq_("./tokentype").types;

var Parser = _dereq_("./state").Parser;

var reservedWords = _dereq_("./identifier").reservedWords;

var has = _dereq_("./util").has;

var pp = Parser.prototype;

// Check if property name clashes with already added.
// Object/class getters and setters are not allowed to clash —
// either with each other or with an init property — and in
// strict mode, init properties are also not allowed to be repeated.

pp.checkPropClash = function (prop, propHash) {
  if (this.options.ecmaVersion >= 6) return;
  var key = prop.key,
      name = undefined;
  switch (key.type) {
    case "Identifier":
      name = key.name;break;
    case "Literal":
      name = String(key.value);break;
    default:
      return;
  }
  var kind = prop.kind || "init",
      other = undefined;
  if (has(propHash, name)) {
    other = propHash[name];
    var isGetSet = kind !== "init";
    if ((this.strict || isGetSet) && other[kind] || !(isGetSet ^ other.init)) this.raise(key.start, "Redefinition of property");
  } else {
    other = propHash[name] = {
      init: false,
      get: false,
      set: false
    };
  }
  other[kind] = true;
};

// ### Expression parsing

// These nest, from the most general expression type at the top to
// 'atomic', nondivisible expression types at the bottom. Most of
// the functions will simply let the function(s) below them parse,
// and, *if* the syntactic construct they handle is present, wrap
// the AST node that the inner parser gave them in another node.

// Parse a full expression. The optional arguments are used to
// forbid the `in` operator (in for loops initalization expressions)
// and provide reference for storing '=' operator inside shorthand
// property assignment in contexts where both object expression
// and object pattern might appear (so it's possible to raise
// delayed syntax error at correct position).

pp.parseExpression = function (noIn, refShorthandDefaultPos) {
  var startPos = this.start,
      startLoc = this.startLoc;
  var expr = this.parseMaybeAssign(noIn, refShorthandDefaultPos);
  if (this.type === tt.comma) {
    var node = this.startNodeAt(startPos, startLoc);
    node.expressions = [expr];
    while (this.eat(tt.comma)) node.expressions.push(this.parseMaybeAssign(noIn, refShorthandDefaultPos));
    return this.finishNode(node, "SequenceExpression");
  }
  return expr;
};

// Parse an assignment expression. This includes applications of
// operators like `+=`.

pp.parseMaybeAssign = function (noIn, refShorthandDefaultPos, afterLeftParse) {
  if (this.type == tt._yield && this.inGenerator) return this.parseYield();

  var failOnShorthandAssign = undefined;
  if (!refShorthandDefaultPos) {
    refShorthandDefaultPos = { start: 0 };
    failOnShorthandAssign = true;
  } else {
    failOnShorthandAssign = false;
  }
  var startPos = this.start,
      startLoc = this.startLoc;
  if (this.type == tt.parenL || this.type == tt.name) this.potentialArrowAt = this.start;
  var left = this.parseMaybeConditional(noIn, refShorthandDefaultPos);
  if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc);
  if (this.type.isAssign) {
    var node = this.startNodeAt(startPos, startLoc);
    node.operator = this.value;
    node.left = this.type === tt.eq ? this.toAssignable(left) : left;
    refShorthandDefaultPos.start = 0; // reset because shorthand default was used correctly
    this.checkLVal(left);
    this.next();
    node.right = this.parseMaybeAssign(noIn);
    return this.finishNode(node, "AssignmentExpression");
  } else if (failOnShorthandAssign && refShorthandDefaultPos.start) {
    this.unexpected(refShorthandDefaultPos.start);
  }
  return left;
};

// Parse a ternary conditional (`?:`) operator.

pp.parseMaybeConditional = function (noIn, refShorthandDefaultPos) {
  var startPos = this.start,
      startLoc = this.startLoc;
  var expr = this.parseExprOps(noIn, refShorthandDefaultPos);
  if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
  if (this.eat(tt.question)) {
    var node = this.startNodeAt(startPos, startLoc);
    node.test = expr;
    node.consequent = this.parseMaybeAssign();
    this.expect(tt.colon);
    node.alternate = this.parseMaybeAssign(noIn);
    return this.finishNode(node, "ConditionalExpression");
  }
  return expr;
};

// Start the precedence parser.

pp.parseExprOps = function (noIn, refShorthandDefaultPos) {
  var startPos = this.start,
      startLoc = this.startLoc;
  var expr = this.parseMaybeUnary(refShorthandDefaultPos);
  if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
  return this.parseExprOp(expr, startPos, startLoc, -1, noIn);
};

// Parse binary operators with the operator precedence parsing
// algorithm. `left` is the left-hand side of the operator.
// `minPrec` provides context that allows the function to stop and
// defer further parser to one of its callers when it encounters an
// operator that has a lower precedence than the set it is parsing.

pp.parseExprOp = function (left, leftStartPos, leftStartLoc, minPrec, noIn) {
  var prec = this.type.binop;
  if (Array.isArray(leftStartPos)) {
    if (this.options.locations && noIn === undefined) {
      // shift arguments to left by one
      noIn = minPrec;
      minPrec = leftStartLoc;
      // flatten leftStartPos
      leftStartLoc = leftStartPos[1];
      leftStartPos = leftStartPos[0];
    }
  }
  if (prec != null && (!noIn || this.type !== tt._in)) {
    if (prec > minPrec) {
      var node = this.startNodeAt(leftStartPos, leftStartLoc);
      node.left = left;
      node.operator = this.value;
      var op = this.type;
      this.next();
      var startPos = this.start,
          startLoc = this.startLoc;
      node.right = this.parseExprOp(this.parseMaybeUnary(), startPos, startLoc, prec, noIn);
      this.finishNode(node, op === tt.logicalOR || op === tt.logicalAND ? "LogicalExpression" : "BinaryExpression");
      return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn);
    }
  }
  return left;
};

// Parse unary operators, both prefix and postfix.

pp.parseMaybeUnary = function (refShorthandDefaultPos) {
  if (this.type.prefix) {
    var node = this.startNode(),
        update = this.type === tt.incDec;
    node.operator = this.value;
    node.prefix = true;
    this.next();
    node.argument = this.parseMaybeUnary();
    if (refShorthandDefaultPos && refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start);
    if (update) this.checkLVal(node.argument);else if (this.strict && node.operator === "delete" && node.argument.type === "Identifier") this.raise(node.start, "Deleting local variable in strict mode");
    return this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
  }
  var startPos = this.start,
      startLoc = this.startLoc;
  var expr = this.parseExprSubscripts(refShorthandDefaultPos);
  if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
  while (this.type.postfix && !this.canInsertSemicolon()) {
    var node = this.startNodeAt(startPos, startLoc);
    node.operator = this.value;
    node.prefix = false;
    node.argument = expr;
    this.checkLVal(expr);
    this.next();
    expr = this.finishNode(node, "UpdateExpression");
  }
  return expr;
};

// Parse call, dot, and `[]`-subscript expressions.

pp.parseExprSubscripts = function (refShorthandDefaultPos) {
  var startPos = this.start,
      startLoc = this.startLoc;
  var expr = this.parseExprAtom(refShorthandDefaultPos);
  if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
  return this.parseSubscripts(expr, startPos, startLoc);
};

pp.parseSubscripts = function (base, startPos, startLoc, noCalls) {
  if (Array.isArray(startPos)) {
    if (this.options.locations && noCalls === undefined) {
      // shift arguments to left by one
      noCalls = startLoc;
      // flatten startPos
      startLoc = startPos[1];
      startPos = startPos[0];
    }
  }
  for (;;) {
    if (this.eat(tt.dot)) {
      var node = this.startNodeAt(startPos, startLoc);
      node.object = base;
      node.property = this.parseIdent(true);
      node.computed = false;
      base = this.finishNode(node, "MemberExpression");
    } else if (this.eat(tt.bracketL)) {
      var node = this.startNodeAt(startPos, startLoc);
      node.object = base;
      node.property = this.parseExpression();
      node.computed = true;
      this.expect(tt.bracketR);
      base = this.finishNode(node, "MemberExpression");
    } else if (!noCalls && this.eat(tt.parenL)) {
      var node = this.startNodeAt(startPos, startLoc);
      node.callee = base;
      node.arguments = this.parseExprList(tt.parenR, false);
      base = this.finishNode(node, "CallExpression");
    } else if (this.type === tt.backQuote) {
      var node = this.startNodeAt(startPos, startLoc);
      node.tag = base;
      node.quasi = this.parseTemplate();
      base = this.finishNode(node, "TaggedTemplateExpression");
    } else {
      return base;
    }
  }
};

// Parse an atomic expression — either a single token that is an
// expression, an expression started by a keyword like `function` or
// `new`, or an expression wrapped in punctuation like `()`, `[]`,
// or `{}`.

pp.parseExprAtom = function (refShorthandDefaultPos) {
  var node = undefined,
      canBeArrow = this.potentialArrowAt == this.start;
  switch (this.type) {
    case tt._this:
    case tt._super:
      var type = this.type === tt._this ? "ThisExpression" : "Super";
      node = this.startNode();
      this.next();
      return this.finishNode(node, type);

    case tt._yield:
      if (this.inGenerator) this.unexpected();

    case tt.name:
      var startPos = this.start,
          startLoc = this.startLoc;
      var id = this.parseIdent(this.type !== tt.name);
      if (canBeArrow && !this.canInsertSemicolon() && this.eat(tt.arrow)) return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id]);
      return id;

    case tt.regexp:
      var value = this.value;
      node = this.parseLiteral(value.value);
      node.regex = { pattern: value.pattern, flags: value.flags };
      return node;

    case tt.num:case tt.string:
      return this.parseLiteral(this.value);

    case tt._null:case tt._true:case tt._false:
      node = this.startNode();
      node.value = this.type === tt._null ? null : this.type === tt._true;
      node.raw = this.type.keyword;
      this.next();
      return this.finishNode(node, "Literal");

    case tt.parenL:
      return this.parseParenAndDistinguishExpression(canBeArrow);

    case tt.bracketL:
      node = this.startNode();
      this.next();
      // check whether this is array comprehension or regular array
      if (this.options.ecmaVersion >= 7 && this.type === tt._for) {
        return this.parseComprehension(node, false);
      }
      node.elements = this.parseExprList(tt.bracketR, true, true, refShorthandDefaultPos);
      return this.finishNode(node, "ArrayExpression");

    case tt.braceL:
      return this.parseObj(false, refShorthandDefaultPos);

    case tt._function:
      node = this.startNode();
      this.next();
      return this.parseFunction(node, false);

    case tt._class:
      return this.parseClass(this.startNode(), false);

    case tt._new:
      return this.parseNew();

    case tt.backQuote:
      return this.parseTemplate();

    default:
      this.unexpected();
  }
};

pp.parseLiteral = function (value) {
  var node = this.startNode();
  node.value = value;
  node.raw = this.input.slice(this.start, this.end);
  this.next();
  return this.finishNode(node, "Literal");
};

pp.parseParenExpression = function () {
  this.expect(tt.parenL);
  var val = this.parseExpression();
  this.expect(tt.parenR);
  return val;
};

pp.parseParenAndDistinguishExpression = function (canBeArrow) {
  var startPos = this.start,
      startLoc = this.startLoc,
      val = undefined;
  if (this.options.ecmaVersion >= 6) {
    this.next();

    if (this.options.ecmaVersion >= 7 && this.type === tt._for) {
      return this.parseComprehension(this.startNodeAt(startPos, startLoc), true);
    }

    var innerStartPos = this.start,
        innerStartLoc = this.startLoc;
    var exprList = [],
        first = true;
    var refShorthandDefaultPos = { start: 0 },
        spreadStart = undefined,
        innerParenStart = undefined;
    while (this.type !== tt.parenR) {
      first ? first = false : this.expect(tt.comma);
      if (this.type === tt.ellipsis) {
        spreadStart = this.start;
        exprList.push(this.parseParenItem(this.parseRest()));
        break;
      } else {
        if (this.type === tt.parenL && !innerParenStart) {
          innerParenStart = this.start;
        }
        exprList.push(this.parseMaybeAssign(false, refShorthandDefaultPos, this.parseParenItem));
      }
    }
    var innerEndPos = this.start,
        innerEndLoc = this.startLoc;
    this.expect(tt.parenR);

    if (canBeArrow && !this.canInsertSemicolon() && this.eat(tt.arrow)) {
      if (innerParenStart) this.unexpected(innerParenStart);
      return this.parseParenArrowList(startPos, startLoc, exprList);
    }

    if (!exprList.length) this.unexpected(this.lastTokStart);
    if (spreadStart) this.unexpected(spreadStart);
    if (refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start);

    if (exprList.length > 1) {
      val = this.startNodeAt(innerStartPos, innerStartLoc);
      val.expressions = exprList;
      this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
    } else {
      val = exprList[0];
    }
  } else {
    val = this.parseParenExpression();
  }

  if (this.options.preserveParens) {
    var par = this.startNodeAt(startPos, startLoc);
    par.expression = val;
    return this.finishNode(par, "ParenthesizedExpression");
  } else {
    return val;
  }
};

pp.parseParenItem = function (item) {
  return item;
};

pp.parseParenArrowList = function (startPos, startLoc, exprList) {
  return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList);
};

// New's precedence is slightly tricky. It must allow its argument
// to be a `[]` or dot subscript expression, but not a call — at
// least, not without wrapping it in parentheses. Thus, it uses the

var empty = [];

pp.parseNew = function () {
  var node = this.startNode();
  var meta = this.parseIdent(true);
  if (this.options.ecmaVersion >= 6 && this.eat(tt.dot)) {
    node.meta = meta;
    node.property = this.parseIdent(true);
    if (node.property.name !== "target") this.raise(node.property.start, "The only valid meta property for new is new.target");
    return this.finishNode(node, "MetaProperty");
  }
  var startPos = this.start,
      startLoc = this.startLoc;
  node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
  if (this.eat(tt.parenL)) node.arguments = this.parseExprList(tt.parenR, false);else node.arguments = empty;
  return this.finishNode(node, "NewExpression");
};

// Parse template expression.

pp.parseTemplateElement = function () {
  var elem = this.startNode();
  elem.value = {
    raw: this.input.slice(this.start, this.end),
    cooked: this.value
  };
  this.next();
  elem.tail = this.type === tt.backQuote;
  return this.finishNode(elem, "TemplateElement");
};

pp.parseTemplate = function () {
  var node = this.startNode();
  this.next();
  node.expressions = [];
  var curElt = this.parseTemplateElement();
  node.quasis = [curElt];
  while (!curElt.tail) {
    this.expect(tt.dollarBraceL);
    node.expressions.push(this.parseExpression());
    this.expect(tt.braceR);
    node.quasis.push(curElt = this.parseTemplateElement());
  }
  this.next();
  return this.finishNode(node, "TemplateLiteral");
};

// Parse an object literal or binding pattern.

pp.parseObj = function (isPattern, refShorthandDefaultPos) {
  var node = this.startNode(),
      first = true,
      propHash = {};
  node.properties = [];
  this.next();
  while (!this.eat(tt.braceR)) {
    if (!first) {
      this.expect(tt.comma);
      if (this.afterTrailingComma(tt.braceR)) break;
    } else first = false;

    var prop = this.startNode(),
        isGenerator = undefined,
        startPos = undefined,
        startLoc = undefined;
    if (this.options.ecmaVersion >= 6) {
      prop.method = false;
      prop.shorthand = false;
      if (isPattern || refShorthandDefaultPos) {
        startPos = this.start;
        startLoc = this.startLoc;
      }
      if (!isPattern) isGenerator = this.eat(tt.star);
    }
    this.parsePropertyName(prop);
    this.parsePropertyValue(prop, isPattern, isGenerator, startPos, startLoc, refShorthandDefaultPos);
    this.checkPropClash(prop, propHash);
    node.properties.push(this.finishNode(prop, "Property"));
  }
  return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression");
};

pp.parsePropertyValue = function (prop, isPattern, isGenerator, startPos, startLoc, refShorthandDefaultPos) {
  if (this.eat(tt.colon)) {
    prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refShorthandDefaultPos);
    prop.kind = "init";
  } else if (this.options.ecmaVersion >= 6 && this.type === tt.parenL) {
    if (isPattern) this.unexpected();
    prop.kind = "init";
    prop.method = true;
    prop.value = this.parseMethod(isGenerator);
  } else if (this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && (this.type != tt.comma && this.type != tt.braceR)) {
    if (isGenerator || isPattern) this.unexpected();
    prop.kind = prop.key.name;
    this.parsePropertyName(prop);
    prop.value = this.parseMethod(false);
  } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
    prop.kind = "init";
    if (isPattern) {
      if (this.isKeyword(prop.key.name) || this.strict && (reservedWords.strictBind(prop.key.name) || reservedWords.strict(prop.key.name)) || !this.options.allowReserved && this.isReservedWord(prop.key.name)) this.raise(prop.key.start, "Binding " + prop.key.name);
      prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
    } else if (this.type === tt.eq && refShorthandDefaultPos) {
      if (!refShorthandDefaultPos.start) refShorthandDefaultPos.start = this.start;
      prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
    } else {
      prop.value = prop.key;
    }
    prop.shorthand = true;
  } else this.unexpected();
};

pp.parsePropertyName = function (prop) {
  if (this.options.ecmaVersion >= 6) {
    if (this.eat(tt.bracketL)) {
      prop.computed = true;
      prop.key = this.parseMaybeAssign();
      this.expect(tt.bracketR);
      return prop.key;
    } else {
      prop.computed = false;
    }
  }
  return prop.key = this.type === tt.num || this.type === tt.string ? this.parseExprAtom() : this.parseIdent(true);
};

// Initialize empty function node.

pp.initFunction = function (node) {
  node.id = null;
  if (this.options.ecmaVersion >= 6) {
    node.generator = false;
    node.expression = false;
  }
};

// Parse object or class method.

pp.parseMethod = function (isGenerator) {
  var node = this.startNode();
  this.initFunction(node);
  this.expect(tt.parenL);
  node.params = this.parseBindingList(tt.parenR, false, false);
  var allowExpressionBody = undefined;
  if (this.options.ecmaVersion >= 6) {
    node.generator = isGenerator;
    allowExpressionBody = true;
  } else {
    allowExpressionBody = false;
  }
  this.parseFunctionBody(node, allowExpressionBody);
  return this.finishNode(node, "FunctionExpression");
};

// Parse arrow function expression with given parameters.

pp.parseArrowExpression = function (node, params) {
  this.initFunction(node);
  node.params = this.toAssignableList(params, true);
  this.parseFunctionBody(node, true);
  return this.finishNode(node, "ArrowFunctionExpression");
};

// Parse function body and check parameters.

pp.parseFunctionBody = function (node, allowExpression) {
  var isExpression = allowExpression && this.type !== tt.braceL;

  if (isExpression) {
    node.body = this.parseMaybeAssign();
    node.expression = true;
  } else {
    // Start a new scope with regard to labels and the `inFunction`
    // flag (restore them to their old value afterwards).
    var oldInFunc = this.inFunction,
        oldInGen = this.inGenerator,
        oldLabels = this.labels;
    this.inFunction = true;this.inGenerator = node.generator;this.labels = [];
    node.body = this.parseBlock(true);
    node.expression = false;
    this.inFunction = oldInFunc;this.inGenerator = oldInGen;this.labels = oldLabels;
  }

  // If this is a strict mode function, verify that argument names
  // are not repeated, and it does not try to bind the words `eval`
  // or `arguments`.
  if (this.strict || !isExpression && node.body.body.length && this.isUseStrict(node.body.body[0])) {
    var nameHash = {},
        oldStrict = this.strict;
    this.strict = true;
    if (node.id) this.checkLVal(node.id, true);
    for (var i = 0; i < node.params.length; i++) {
      this.checkLVal(node.params[i], true, nameHash);
    }this.strict = oldStrict;
  }
};

// Parses a comma-separated list of expressions, and returns them as
// an array. `close` is the token type that ends the list, and
// `allowEmpty` can be turned on to allow subsequent commas with
// nothing in between them to be parsed as `null` (which is needed
// for array literals).

pp.parseExprList = function (close, allowTrailingComma, allowEmpty, refShorthandDefaultPos) {
  var elts = [],
      first = true;
  while (!this.eat(close)) {
    if (!first) {
      this.expect(tt.comma);
      if (allowTrailingComma && this.afterTrailingComma(close)) break;
    } else first = false;

    if (allowEmpty && this.type === tt.comma) {
      elts.push(null);
    } else {
      if (this.type === tt.ellipsis) elts.push(this.parseSpread(refShorthandDefaultPos));else elts.push(this.parseMaybeAssign(false, refShorthandDefaultPos));
    }
  }
  return elts;
};

// Parse the next token as an identifier. If `liberal` is true (used
// when parsing properties), it will also convert keywords into
// identifiers.

pp.parseIdent = function (liberal) {
  var node = this.startNode();
  if (liberal && this.options.allowReserved == "never") liberal = false;
  if (this.type === tt.name) {
    if (!liberal && (!this.options.allowReserved && this.isReservedWord(this.value) || this.strict && reservedWords.strict(this.value) && (this.options.ecmaVersion >= 6 || this.input.slice(this.start, this.end).indexOf("\\") == -1))) this.raise(this.start, "The keyword '" + this.value + "' is reserved");
    node.name = this.value;
  } else if (liberal && this.type.keyword) {
    node.name = this.type.keyword;
  } else {
    this.unexpected();
  }
  this.next();
  return this.finishNode(node, "Identifier");
};

// Parses yield expression inside generator.

pp.parseYield = function () {
  var node = this.startNode();
  this.next();
  if (this.type == tt.semi || this.canInsertSemicolon() || this.type != tt.star && !this.type.startsExpr) {
    node.delegate = false;
    node.argument = null;
  } else {
    node.delegate = this.eat(tt.star);
    node.argument = this.parseMaybeAssign();
  }
  return this.finishNode(node, "YieldExpression");
};

// Parses array and generator comprehensions.

pp.parseComprehension = function (node, isGenerator) {
  node.blocks = [];
  while (this.type === tt._for) {
    var block = this.startNode();
    this.next();
    this.expect(tt.parenL);
    block.left = this.parseBindingAtom();
    this.checkLVal(block.left, true);
    this.expectContextual("of");
    block.right = this.parseExpression();
    this.expect(tt.parenR);
    node.blocks.push(this.finishNode(block, "ComprehensionBlock"));
  }
  node.filter = this.eat(tt._if) ? this.parseParenExpression() : null;
  node.body = this.parseExpression();
  this.expect(isGenerator ? tt.parenR : tt.bracketR);
  node.generator = isGenerator;
  return this.finishNode(node, "ComprehensionExpression");
};

},{"./identifier":7,"./state":13,"./tokentype":17,"./util":18}],7:[function(_dereq_,module,exports){


// Test whether a given character code starts an identifier.

"use strict";

exports.isIdentifierStart = isIdentifierStart;

// Test whether a given character is part of an identifier.

exports.isIdentifierChar = isIdentifierChar;
exports.__esModule = true;
// This is a trick taken from Esprima. It turns out that, on
// non-Chrome browsers, to check whether a string is in a set, a
// predicate containing a big ugly `switch` statement is faster than
// a regular expression, and on Chrome the two are about on par.
// This function uses `eval` (non-lexical) to produce such a
// predicate from a space-separated string of words.
//
// It starts by sorting the words by length.

function makePredicate(words) {
  words = words.split(" ");
  var f = "",
      cats = [];
  out: for (var i = 0; i < words.length; ++i) {
    for (var j = 0; j < cats.length; ++j) {
      if (cats[j][0].length == words[i].length) {
        cats[j].push(words[i]);
        continue out;
      }
    }cats.push([words[i]]);
  }
  function compareTo(arr) {
    if (arr.length == 1) {
      return f += "return str === " + JSON.stringify(arr[0]) + ";";
    }f += "switch(str){";
    for (var i = 0; i < arr.length; ++i) {
      f += "case " + JSON.stringify(arr[i]) + ":";
    }f += "return true}return false;";
  }

  // When there are more than three length categories, an outer
  // switch first dispatches on the lengths, to save on comparisons.

  if (cats.length > 3) {
    cats.sort(function (a, b) {
      return b.length - a.length;
    });
    f += "switch(str.length){";
    for (var i = 0; i < cats.length; ++i) {
      var cat = cats[i];
      f += "case " + cat[0].length + ":";
      compareTo(cat);
    }
    f += "}"

    // Otherwise, simply generate a flat `switch` statement.

    ;
  } else {
    compareTo(words);
  }
  return new Function("str", f);
}

// Reserved word lists for various dialects of the language

var reservedWords = {
  3: makePredicate("abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile"),
  5: makePredicate("class enum extends super const export import"),
  6: makePredicate("enum await"),
  strict: makePredicate("implements interface let package private protected public static yield"),
  strictBind: makePredicate("eval arguments")
};

exports.reservedWords = reservedWords;
// And the keywords

var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";

var keywords = {
  5: makePredicate(ecma5AndLessKeywords),
  6: makePredicate(ecma5AndLessKeywords + " let const class extends export import yield super")
};

exports.keywords = keywords;
// ## Character categories

// Big ugly regular expressions that match characters in the
// whitespace, identifier, and identifier-start categories. These
// are only applied when a character is found to actually have a
// code point above 128.
// Generated by `tools/generate-identifier-regex.js`.

var nonASCIIidentifierStartChars = "ªµºÀ-ÖØ-öø-ˁˆ-ˑˠ-ˤˬˮͰ-ʹͶͷͺ-ͽͿΆΈ-ΊΌΎ-ΡΣ-ϵϷ-ҁҊ-ԯԱ-Ֆՙա-ևא-תװ-ײؠ-يٮٯٱ-ۓەۥۦۮۯۺ-ۼۿܐܒ-ܯݍ-ޥޱߊ-ߪߴߵߺࠀ-ࠕࠚࠤࠨࡀ-ࡘࢠ-ࢲऄ-हऽॐक़-ॡॱ-ঀঅ-ঌএঐও-নপ-রলশ-হঽৎড়ঢ়য়-ৡৰৱਅ-ਊਏਐਓ-ਨਪ-ਰਲਲ਼ਵਸ਼ਸਹਖ਼-ੜਫ਼ੲ-ੴઅ-ઍએ-ઑઓ-નપ-રલળવ-હઽૐૠૡଅ-ଌଏଐଓ-ନପ-ରଲଳଵ-ହଽଡ଼ଢ଼ୟ-ୡୱஃஅ-ஊஎ-ஐஒ-கஙசஜஞடணதந-பம-ஹௐఅ-ఌఎ-ఐఒ-నప-హఽౘౙౠౡಅ-ಌಎ-ಐಒ-ನಪ-ಳವ-ಹಽೞೠೡೱೲഅ-ഌഎ-ഐഒ-ഺഽൎൠൡൺ-ൿඅ-ඖක-නඳ-රලව-ෆก-ะาำเ-ๆກຂຄງຈຊຍດ-ທນ-ຟມ-ຣລວສຫອ-ະາຳຽເ-ໄໆໜ-ໟༀཀ-ཇཉ-ཬྈ-ྌက-ဪဿၐ-ၕၚ-ၝၡၥၦၮ-ၰၵ-ႁႎႠ-ჅჇჍა-ჺჼ-ቈቊ-ቍቐ-ቖቘቚ-ቝበ-ኈኊ-ኍነ-ኰኲ-ኵኸ-ኾዀዂ-ዅወ-ዖዘ-ጐጒ-ጕጘ-ፚᎀ-ᎏᎠ-Ᏼᐁ-ᙬᙯ-ᙿᚁ-ᚚᚠ-ᛪᛮ-ᛸᜀ-ᜌᜎ-ᜑᜠ-ᜱᝀ-ᝑᝠ-ᝬᝮ-ᝰក-ឳៗៜᠠ-ᡷᢀ-ᢨᢪᢰ-ᣵᤀ-ᤞᥐ-ᥭᥰ-ᥴᦀ-ᦫᧁ-ᧇᨀ-ᨖᨠ-ᩔᪧᬅ-ᬳᭅ-ᭋᮃ-ᮠᮮᮯᮺ-ᯥᰀ-ᰣᱍ-ᱏᱚ-ᱽᳩ-ᳬᳮ-ᳱᳵᳶᴀ-ᶿḀ-ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ᾼιῂ-ῄῆ-ῌῐ-ΐῖ-Ίῠ-Ῥῲ-ῴῶ-ῼⁱⁿₐ-ₜℂℇℊ-ℓℕ℘-ℝℤΩℨK-ℹℼ-ℿⅅ-ⅉⅎⅠ-ↈⰀ-Ⱞⰰ-ⱞⱠ-ⳤⳫ-ⳮⳲⳳⴀ-ⴥⴧⴭⴰ-ⵧⵯⶀ-ⶖⶠ-ⶦⶨ-ⶮⶰ-ⶶⶸ-ⶾⷀ-ⷆⷈ-ⷎⷐ-ⷖⷘ-ⷞ々-〇〡-〩〱-〵〸-〼ぁ-ゖ゛-ゟァ-ヺー-ヿㄅ-ㄭㄱ-ㆎㆠ-ㆺㇰ-ㇿ㐀-䶵一-鿌ꀀ-ꒌꓐ-ꓽꔀ-ꘌꘐ-ꘟꘪꘫꙀ-ꙮꙿ-ꚝꚠ-ꛯꜗ-ꜟꜢ-ꞈꞋ-ꞎꞐ-ꞭꞰꞱꟷ-ꠁꠃ-ꠅꠇ-ꠊꠌ-ꠢꡀ-ꡳꢂ-ꢳꣲ-ꣷꣻꤊ-ꤥꤰ-ꥆꥠ-ꥼꦄ-ꦲꧏꧠ-ꧤꧦ-ꧯꧺ-ꧾꨀ-ꨨꩀ-ꩂꩄ-ꩋꩠ-ꩶꩺꩾ-ꪯꪱꪵꪶꪹ-ꪽꫀꫂꫛ-ꫝꫠ-ꫪꫲ-ꫴꬁ-ꬆꬉ-ꬎꬑ-ꬖꬠ-ꬦꬨ-ꬮꬰ-ꭚꭜ-ꭟꭤꭥꯀ-ꯢ가-힣ힰ-ퟆퟋ-ퟻ豈-舘並-龎ff-stﬓ-ﬗיִײַ-ﬨשׁ-זּטּ-לּמּנּסּףּפּצּ-ﮱﯓ-ﴽﵐ-ﶏﶒ-ﷇﷰ-ﷻﹰ-ﹴﹶ-ﻼＡ-Ｚａ-ｚｦ-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ";
var nonASCIIidentifierChars = "‌‍·̀-ͯ·҃-֑҇-ׇֽֿׁׂׅׄؐ-ًؚ-٩ٰۖ-ۜ۟-۪ۤۧۨ-ۭ۰-۹ܑܰ-݊ަ-ް߀-߉߫-߳ࠖ-࠙ࠛ-ࠣࠥ-ࠧࠩ-࡙࠭-࡛ࣤ-ःऺ-़ा-ॏ॑-ॗॢॣ०-९ঁ-ঃ়া-ৄেৈো-্ৗৢৣ০-৯ਁ-ਃ਼ਾ-ੂੇੈੋ-੍ੑ੦-ੱੵઁ-ઃ઼ા-ૅે-ૉો-્ૢૣ૦-૯ଁ-ଃ଼ା-ୄେୈୋ-୍ୖୗୢୣ୦-୯ஂா-ூெ-ைொ-்ௗ௦-௯ఀ-ఃా-ౄె-ైొ-్ౕౖౢౣ౦-౯ಁ-ಃ಼ಾ-ೄೆ-ೈೊ-್ೕೖೢೣ೦-೯ഁ-ഃാ-ൄെ-ൈൊ-്ൗൢൣ൦-൯ංඃ්ා-ුූෘ-ෟ෦-෯ෲෳัิ-ฺ็-๎๐-๙ັິ-ູົຼ່-ໍ໐-໙༘༙༠-༩༹༵༷༾༿ཱ-྄྆྇ྍ-ྗྙ-ྼ࿆ါ-ှ၀-၉ၖ-ၙၞ-ၠၢ-ၤၧ-ၭၱ-ၴႂ-ႍႏ-ႝ፝-፟፩-፱ᜒ-᜔ᜲ-᜴ᝒᝓᝲᝳ឴-៓៝០-៩᠋-᠍᠐-᠙ᢩᤠ-ᤫᤰ-᤻᥆-᥏ᦰ-ᧀᧈᧉ᧐-᧚ᨗ-ᨛᩕ-ᩞ᩠-᩿᩼-᪉᪐-᪙᪰-᪽ᬀ-ᬄ᬴-᭄᭐-᭙᭫-᭳ᮀ-ᮂᮡ-ᮭ᮰-᮹᯦-᯳ᰤ-᰷᱀-᱉᱐-᱙᳐-᳔᳒-᳨᳭ᳲ-᳴᳸᳹᷀-᷵᷼-᷿‿⁀⁔⃐-⃥⃜⃡-⃰⳯-⵿⳱ⷠ-〪ⷿ-゙゚〯꘠-꘩꙯ꙴ-꙽ꚟ꛰꛱ꠂ꠆ꠋꠣ-ꠧꢀꢁꢴ-꣄꣐-꣙꣠-꣱꤀-꤉ꤦ-꤭ꥇ-꥓ꦀ-ꦃ꦳-꧀꧐-꧙ꧥ꧰-꧹ꨩ-ꨶꩃꩌꩍ꩐-꩙ꩻ-ꩽꪰꪲ-ꪴꪷꪸꪾ꪿꫁ꫫ-ꫯꫵ꫶ꯣ-ꯪ꯬꯭꯰-꯹ﬞ︀-️︠-︭︳︴﹍-﹏０-９＿";

var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");

nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;

// These are a run-length and offset encoded representation of the
// >0xffff code points that are a valid part of identifiers. The
// offset starts at 0x10000, and each pair of numbers represents an
// offset to the next range, and then a size of the range. They were
// generated by tools/generate-identifier-regex.js
var astralIdentifierStartCodes = [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 17, 26, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 99, 39, 9, 51, 157, 310, 10, 21, 11, 7, 153, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 98, 21, 11, 25, 71, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 26, 45, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 955, 52, 76, 44, 33, 24, 27, 35, 42, 34, 4, 0, 13, 47, 15, 3, 22, 0, 38, 17, 2, 24, 133, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 32, 4, 287, 47, 21, 1, 2, 0, 185, 46, 82, 47, 21, 0, 60, 42, 502, 63, 32, 0, 449, 56, 1288, 920, 104, 110, 2962, 1070, 13266, 568, 8, 30, 114, 29, 19, 47, 17, 3, 32, 20, 6, 18, 881, 68, 12, 0, 67, 12, 16481, 1, 3071, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 4149, 196, 1340, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42710, 42, 4148, 12, 221, 16355, 541];
var astralIdentifierCodes = [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 1306, 2, 54, 14, 32, 9, 16, 3, 46, 10, 54, 9, 7, 2, 37, 13, 2, 9, 52, 0, 13, 2, 49, 13, 16, 9, 83, 11, 168, 11, 6, 9, 8, 2, 57, 0, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 316, 19, 13, 9, 214, 6, 3, 8, 112, 16, 16, 9, 82, 12, 9, 9, 535, 9, 20855, 9, 135, 4, 60, 6, 26, 9, 1016, 45, 17, 3, 19723, 1, 5319, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 4305, 6, 792618, 239];

// This has a complexity linear to the value of the code. The
// assumption is that looking up astral identifier characters is
// rare.
function isInAstralSet(code, set) {
  var pos = 65536;
  for (var i = 0; i < set.length; i += 2) {
    pos += set[i];
    if (pos > code) {
      return false;
    }pos += set[i + 1];
    if (pos >= code) {
      return true;
    }
  }
}
function isIdentifierStart(code, astral) {
  if (code < 65) {
    return code === 36;
  }if (code < 91) {
    return true;
  }if (code < 97) {
    return code === 95;
  }if (code < 123) {
    return true;
  }if (code <= 65535) {
    return code >= 170 && nonASCIIidentifierStart.test(String.fromCharCode(code));
  }if (astral === false) {
    return false;
  }return isInAstralSet(code, astralIdentifierStartCodes);
}

function isIdentifierChar(code, astral) {
  if (code < 48) {
    return code === 36;
  }if (code < 58) {
    return true;
  }if (code < 65) {
    return false;
  }if (code < 91) {
    return true;
  }if (code < 97) {
    return code === 95;
  }if (code < 123) {
    return true;
  }if (code <= 65535) {
    return code >= 170 && nonASCIIidentifier.test(String.fromCharCode(code));
  }if (astral === false) {
    return false;
  }return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes);
}

},{}],8:[function(_dereq_,module,exports){
"use strict";

var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };

// The `getLineInfo` function is mostly useful when the
// `locations` option is off (for performance reasons) and you
// want to find the line/column position for a given character
// offset. `input` should be the code string that the offset refers
// into.

exports.getLineInfo = getLineInfo;
exports.__esModule = true;

var Parser = _dereq_("./state").Parser;

var lineBreakG = _dereq_("./whitespace").lineBreakG;

var deprecate = _dereq_("util").deprecate;

// These are used when `options.locations` is on, for the
// `startLoc` and `endLoc` properties.

var Position = exports.Position = (function () {
  function Position(line, col) {
    _classCallCheck(this, Position);

    this.line = line;
    this.column = col;
  }

  Position.prototype.offset = function offset(n) {
    return new Position(this.line, this.column + n);
  };

  return Position;
})();

var SourceLocation = exports.SourceLocation = function SourceLocation(p, start, end) {
  _classCallCheck(this, SourceLocation);

  this.start = start;
  this.end = end;
  if (p.sourceFile !== null) this.source = p.sourceFile;
};

function getLineInfo(input, offset) {
  for (var line = 1, cur = 0;;) {
    lineBreakG.lastIndex = cur;
    var match = lineBreakG.exec(input);
    if (match && match.index < offset) {
      ++line;
      cur = match.index + match[0].length;
    } else {
      return new Position(line, offset - cur);
    }
  }
}

var pp = Parser.prototype;

// This function is used to raise exceptions on parse errors. It
// takes an offset integer (into the current `input`) to indicate
// the location of the error, attaches the position to the end
// of the error message, and then raises a `SyntaxError` with that
// message.

pp.raise = function (pos, message) {
  var loc = getLineInfo(this.input, pos);
  message += " (" + loc.line + ":" + loc.column + ")";
  var err = new SyntaxError(message);
  err.pos = pos;err.loc = loc;err.raisedAt = this.pos;
  throw err;
};

pp.curPosition = function () {
  return new Position(this.curLine, this.pos - this.lineStart);
};

pp.markPosition = function () {
  return this.options.locations ? [this.start, this.startLoc] : this.start;
};

},{"./state":13,"./whitespace":19,"util":5}],9:[function(_dereq_,module,exports){
"use strict";

var tt = _dereq_("./tokentype").types;

var Parser = _dereq_("./state").Parser;

var reservedWords = _dereq_("./identifier").reservedWords;

var has = _dereq_("./util").has;

var pp = Parser.prototype;

// Convert existing expression atom to assignable pattern
// if possible.

pp.toAssignable = function (node, isBinding) {
  if (this.options.ecmaVersion >= 6 && node) {
    switch (node.type) {
      case "Identifier":
      case "ObjectPattern":
      case "ArrayPattern":
      case "AssignmentPattern":
        break;

      case "ObjectExpression":
        node.type = "ObjectPattern";
        for (var i = 0; i < node.properties.length; i++) {
          var prop = node.properties[i];
          if (prop.kind !== "init") this.raise(prop.key.start, "Object pattern can't contain getter or setter");
          this.toAssignable(prop.value, isBinding);
        }
        break;

      case "ArrayExpression":
        node.type = "ArrayPattern";
        this.toAssignableList(node.elements, isBinding);
        break;

      case "AssignmentExpression":
        if (node.operator === "=") {
          node.type = "AssignmentPattern";
        } else {
          this.raise(node.left.end, "Only '=' operator can be used for specifying default value.");
        }
        break;

      case "ParenthesizedExpression":
        node.expression = this.toAssignable(node.expression, isBinding);
        break;

      case "MemberExpression":
        if (!isBinding) break;

      default:
        this.raise(node.start, "Assigning to rvalue");
    }
  }
  return node;
};

// Convert list of expression atoms to binding list.

pp.toAssignableList = function (exprList, isBinding) {
  var end = exprList.length;
  if (end) {
    var last = exprList[end - 1];
    if (last && last.type == "RestElement") {
      --end;
    } else if (last && last.type == "SpreadElement") {
      last.type = "RestElement";
      var arg = last.argument;
      this.toAssignable(arg, isBinding);
      if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern") this.unexpected(arg.start);
      --end;
    }
  }
  for (var i = 0; i < end; i++) {
    var elt = exprList[i];
    if (elt) this.toAssignable(elt, isBinding);
  }
  return exprList;
};

// Parses spread element.

pp.parseSpread = function (refShorthandDefaultPos) {
  var node = this.startNode();
  this.next();
  node.argument = this.parseMaybeAssign(refShorthandDefaultPos);
  return this.finishNode(node, "SpreadElement");
};

pp.parseRest = function () {
  var node = this.startNode();
  this.next();
  node.argument = this.type === tt.name || this.type === tt.bracketL ? this.parseBindingAtom() : this.unexpected();
  return this.finishNode(node, "RestElement");
};

// Parses lvalue (assignable) atom.

pp.parseBindingAtom = function () {
  if (this.options.ecmaVersion < 6) return this.parseIdent();
  switch (this.type) {
    case tt.name:
      return this.parseIdent();

    case tt.bracketL:
      var node = this.startNode();
      this.next();
      node.elements = this.parseBindingList(tt.bracketR, true, true);
      return this.finishNode(node, "ArrayPattern");

    case tt.braceL:
      return this.parseObj(true);

    default:
      this.unexpected();
  }
};

pp.parseBindingList = function (close, allowEmpty, allowTrailingComma) {
  var elts = [],
      first = true;
  while (!this.eat(close)) {
    if (first) first = false;else this.expect(tt.comma);
    if (allowEmpty && this.type === tt.comma) {
      elts.push(null);
    } else if (allowTrailingComma && this.afterTrailingComma(close)) {
      break;
    } else if (this.type === tt.ellipsis) {
      var rest = this.parseRest();
      this.parseBindingListItem(rest);
      elts.push(rest);
      this.expect(close);
      break;
    } else {
      var elem = this.parseMaybeDefault(this.start, this.startLoc);
      this.parseBindingListItem(elem);
      elts.push(elem);
    }
  }
  return elts;
};

pp.parseBindingListItem = function (param) {
  return param;
};

// Parses assignment pattern around given atom if possible.

pp.parseMaybeDefault = function (startPos, startLoc, left) {
  if (Array.isArray(startPos)) {
    if (this.options.locations && noCalls === undefined) {
      // shift arguments to left by one
      left = startLoc;
      // flatten startPos
      startLoc = startPos[1];
      startPos = startPos[0];
    }
  }
  left = left || this.parseBindingAtom();
  if (!this.eat(tt.eq)) return left;
  var node = this.startNodeAt(startPos, startLoc);
  node.operator = "=";
  node.left = left;
  node.right = this.parseMaybeAssign();
  return this.finishNode(node, "AssignmentPattern");
};

// Verify that a node is an lval — something that can be assigned
// to.

pp.checkLVal = function (expr, isBinding, checkClashes) {
  switch (expr.type) {
    case "Identifier":
      if (this.strict && (reservedWords.strictBind(expr.name) || reservedWords.strict(expr.name))) this.raise(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode");
      if (checkClashes) {
        if (has(checkClashes, expr.name)) this.raise(expr.start, "Argument name clash in strict mode");
        checkClashes[expr.name] = true;
      }
      break;

    case "MemberExpression":
      if (isBinding) this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression");
      break;

    case "ObjectPattern":
      for (var i = 0; i < expr.properties.length; i++) {
        this.checkLVal(expr.properties[i].value, isBinding, checkClashes);
      }break;

    case "ArrayPattern":
      for (var i = 0; i < expr.elements.length; i++) {
        var elem = expr.elements[i];
        if (elem) this.checkLVal(elem, isBinding, checkClashes);
      }
      break;

    case "AssignmentPattern":
      this.checkLVal(expr.left, isBinding, checkClashes);
      break;

    case "RestElement":
      this.checkLVal(expr.argument, isBinding, checkClashes);
      break;

    case "ParenthesizedExpression":
      this.checkLVal(expr.expression, isBinding, checkClashes);
      break;

    default:
      this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " rvalue");
  }
};

},{"./identifier":7,"./state":13,"./tokentype":17,"./util":18}],10:[function(_dereq_,module,exports){
"use strict";

var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };

exports.__esModule = true;

var Parser = _dereq_("./state").Parser;

var SourceLocation = _dereq_("./location").SourceLocation;

// Start an AST node, attaching a start offset.

var pp = Parser.prototype;

var Node = exports.Node = function Node() {
  _classCallCheck(this, Node);
};

pp.startNode = function () {
  var node = new Node();
  node.start = this.start;
  if (this.options.locations) node.loc = new SourceLocation(this, this.startLoc);
  if (this.options.directSourceFile) node.sourceFile = this.options.directSourceFile;
  if (this.options.ranges) node.range = [this.start, 0];
  return node;
};

pp.startNodeAt = function (pos, loc) {
  var node = new Node();
  if (Array.isArray(pos)) {
    if (this.options.locations && loc === undefined) {
      // flatten pos
      loc = pos[1];
      pos = pos[0];
    }
  }
  node.start = pos;
  if (this.options.locations) node.loc = new SourceLocation(this, loc);
  if (this.options.directSourceFile) node.sourceFile = this.options.directSourceFile;
  if (this.options.ranges) node.range = [pos, 0];
  return node;
};

// Finish an AST node, adding `type` and `end` properties.

pp.finishNode = function (node, type) {
  node.type = type;
  node.end = this.lastTokEnd;
  if (this.options.locations) node.loc.end = this.lastTokEndLoc;
  if (this.options.ranges) node.range[1] = this.lastTokEnd;
  return node;
};

// Finish node at given position

pp.finishNodeAt = function (node, type, pos, loc) {
  node.type = type;
  if (Array.isArray(pos)) {
    if (this.options.locations && loc === undefined) {
      // flatten pos
      loc = pos[1];
      pos = pos[0];
    }
  }
  node.end = pos;
  if (this.options.locations) node.loc.end = loc;
  if (this.options.ranges) node.range[1] = pos;
  return node;
};

},{"./location":8,"./state":13}],11:[function(_dereq_,module,exports){


// Interpret and default an options object

"use strict";

exports.getOptions = getOptions;
exports.__esModule = true;

var _util = _dereq_("./util");

var has = _util.has;
var isArray = _util.isArray;

var SourceLocation = _dereq_("./location").SourceLocation;

// A second optional argument can be given to further configure
// the parser process. These options are recognized:

var defaultOptions = {
  // `ecmaVersion` indicates the ECMAScript version to parse. Must
  // be either 3, or 5, or 6. This influences support for strict
  // mode, the set of reserved words, support for getters and
  // setters and other features.
  ecmaVersion: 5,
  // Source type ("script" or "module") for different semantics
  sourceType: "script",
  // `onInsertedSemicolon` can be a callback that will be called
  // when a semicolon is automatically inserted. It will be passed
  // th position of the comma as an offset, and if `locations` is
  // enabled, it is given the location as a `{line, column}` object
  // as second argument.
  onInsertedSemicolon: null,
  // `onTrailingComma` is similar to `onInsertedSemicolon`, but for
  // trailing commas.
  onTrailingComma: null,
  // By default, reserved words are not enforced. Disable
  // `allowReserved` to enforce them. When this option has the
  // value "never", reserved words and keywords can also not be
  // used as property names.
  allowReserved: true,
  // When enabled, a return at the top level is not considered an
  // error.
  allowReturnOutsideFunction: false,
  // When enabled, import/export statements are not constrained to
  // appearing at the top of the program.
  allowImportExportEverywhere: false,
  // When enabled, hashbang directive in the beginning of file
  // is allowed and treated as a line comment.
  allowHashBang: false,
  // When `locations` is on, `loc` properties holding objects with
  // `start` and `end` properties in `{line, column}` form (with
  // line being 1-based and column 0-based) will be attached to the
  // nodes.
  locations: false,
  // A function can be passed as `onToken` option, which will
  // cause Acorn to call that function with object in the same
  // format as tokenize() returns. Note that you are not
  // allowed to call the parser from the callback—that will
  // corrupt its internal state.
  onToken: null,
  // A function can be passed as `onComment` option, which will
  // cause Acorn to call that function with `(block, text, start,
  // end)` parameters whenever a comment is skipped. `block` is a
  // boolean indicating whether this is a block (`/* */`) comment,
  // `text` is the content of the comment, and `start` and `end` are
  // character offsets that denote the start and end of the comment.
  // When the `locations` option is on, two more parameters are
  // passed, the full `{line, column}` locations of the start and
  // end of the comments. Note that you are not allowed to call the
  // parser from the callback—that will corrupt its internal state.
  onComment: null,
  // Nodes have their start and end characters offsets recorded in
  // `start` and `end` properties (directly on the node, rather than
  // the `loc` object, which holds line/column data. To also add a
  // [semi-standardized][range] `range` property holding a `[start,
  // end]` array with the same numbers, set the `ranges` option to
  // `true`.
  //
  // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
  ranges: false,
  // It is possible to parse multiple files into a single AST by
  // passing the tree produced by parsing the first file as
  // `program` option in subsequent parses. This will add the
  // toplevel forms of the parsed file to the `Program` (top) node
  // of an existing parse tree.
  program: null,
  // When `locations` is on, you can pass this to record the source
  // file in every node's `loc` object.
  sourceFile: null,
  // This value, if given, is stored in every node, whether
  // `locations` is on or off.
  directSourceFile: null,
  // When enabled, parenthesized expressions are represented by
  // (non-standard) ParenthesizedExpression nodes
  preserveParens: false,
  plugins: {}
};exports.defaultOptions = defaultOptions;

function getOptions(opts) {
  var options = {};
  for (var opt in defaultOptions) {
    options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt];
  }if (isArray(options.onToken)) {
    (function () {
      var tokens = options.onToken;
      options.onToken = function (token) {
        return tokens.push(token);
      };
    })();
  }
  if (isArray(options.onComment)) options.onComment = pushComment(options, options.onComment);

  return options;
}

function pushComment(options, array) {
  return function (block, text, start, end, startLoc, endLoc) {
    var comment = {
      type: block ? "Block" : "Line",
      value: text,
      start: start,
      end: end
    };
    if (options.locations) comment.loc = new SourceLocation(this, startLoc, endLoc);
    if (options.ranges) comment.range = [start, end];
    array.push(comment);
  };
}

},{"./location":8,"./util":18}],12:[function(_dereq_,module,exports){
"use strict";

var tt = _dereq_("./tokentype").types;

var Parser = _dereq_("./state").Parser;

var lineBreak = _dereq_("./whitespace").lineBreak;

var pp = Parser.prototype;

// ## Parser utilities

// Test whether a statement node is the string literal `"use strict"`.

pp.isUseStrict = function (stmt) {
  return this.options.ecmaVersion >= 5 && stmt.type === "ExpressionStatement" && stmt.expression.type === "Literal" && stmt.expression.value === "use strict";
};

// Predicate that tests whether the next token is of the given
// type, and if yes, consumes it as a side effect.

pp.eat = function (type) {
  if (this.type === type) {
    this.next();
    return true;
  } else {
    return false;
  }
};

// Tests whether parsed token is a contextual keyword.

pp.isContextual = function (name) {
  return this.type === tt.name && this.value === name;
};

// Consumes contextual keyword if possible.

pp.eatContextual = function (name) {
  return this.value === name && this.eat(tt.name);
};

// Asserts that following token is given contextual keyword.

pp.expectContextual = function (name) {
  if (!this.eatContextual(name)) this.unexpected();
};

// Test whether a semicolon can be inserted at the current position.

pp.canInsertSemicolon = function () {
  return this.type === tt.eof || this.type === tt.braceR || lineBreak.test(this.input.slice(this.lastTokEnd, this.start));
};

pp.insertSemicolon = function () {
  if (this.canInsertSemicolon()) {
    if (this.options.onInsertedSemicolon) this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc);
    return true;
  }
};

// Consume a semicolon, or, failing that, see if we are allowed to
// pretend that there is a semicolon at this position.

pp.semicolon = function () {
  if (!this.eat(tt.semi) && !this.insertSemicolon()) this.unexpected();
};

pp.afterTrailingComma = function (tokType) {
  if (this.type == tokType) {
    if (this.options.onTrailingComma) this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc);
    this.next();
    return true;
  }
};

// Expect a token of a given type. If found, consume it, otherwise,
// raise an unexpected token error.

pp.expect = function (type) {
  this.eat(type) || this.unexpected();
};

// Raise an unexpected token error.

pp.unexpected = function (pos) {
  this.raise(pos != null ? pos : this.start, "Unexpected token");
};

},{"./state":13,"./tokentype":17,"./whitespace":19}],13:[function(_dereq_,module,exports){
"use strict";

exports.Parser = Parser;
exports.__esModule = true;

var _identifier = _dereq_("./identifier");

var reservedWords = _identifier.reservedWords;
var keywords = _identifier.keywords;

var tt = _dereq_("./tokentype").types;

var lineBreak = _dereq_("./whitespace").lineBreak;

function Parser(options, input, startPos) {
  this.options = options;
  this.sourceFile = this.options.sourceFile || null;
  this.isKeyword = keywords[this.options.ecmaVersion >= 6 ? 6 : 5];
  this.isReservedWord = reservedWords[this.options.ecmaVersion];
  this.input = input;

  // Load plugins
  this.loadPlugins(this.options.plugins);

  // Set up token state

  // The current position of the tokenizer in the input.
  if (startPos) {
    this.pos = startPos;
    this.lineStart = Math.max(0, this.input.lastIndexOf("\n", startPos));
    this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
  } else {
    this.pos = this.lineStart = 0;
    this.curLine = 1;
  }

  // Properties of the current token:
  // Its type
  this.type = tt.eof;
  // For tokens that include more information than their type, the value
  this.value = null;
  // Its start and end offset
  this.start = this.end = this.pos;
  // And, if locations are used, the {line, column} object
  // corresponding to those offsets
  this.startLoc = this.endLoc = null;

  // Position information for the previous token
  this.lastTokEndLoc = this.lastTokStartLoc = null;
  this.lastTokStart = this.lastTokEnd = this.pos;

  // The context stack is used to superficially track syntactic
  // context to predict whether a regular expression is allowed in a
  // given position.
  this.context = this.initialContext();
  this.exprAllowed = true;

  // Figure out if it's a module code.
  this.strict = this.inModule = this.options.sourceType === "module";

  // Used to signify the start of a potential arrow function
  this.potentialArrowAt = -1;

  // Flags to track whether we are in a function, a generator.
  this.inFunction = this.inGenerator = false;
  // Labels in scope.
  this.labels = [];

  // If enabled, skip leading hashbang line.
  if (this.pos === 0 && this.options.allowHashBang && this.input.slice(0, 2) === "#!") this.skipLineComment(2);
}

Parser.prototype.extend = function (name, f) {
  this[name] = f(this[name]);
};

// Registered plugins

var plugins = {};

exports.plugins = plugins;
Parser.prototype.loadPlugins = function (plugins) {
  for (var _name in plugins) {
    var plugin = exports.plugins[_name];
    if (!plugin) throw new Error("Plugin '" + _name + "' not found");
    plugin(this, plugins[_name]);
  }
};

},{"./identifier":7,"./tokentype":17,"./whitespace":19}],14:[function(_dereq_,module,exports){
"use strict";

var tt = _dereq_("./tokentype").types;

var Parser = _dereq_("./state").Parser;

var lineBreak = _dereq_("./whitespace").lineBreak;

var pp = Parser.prototype;

// ### Statement parsing

// Parse a program. Initializes the parser, reads any number of
// statements, and wraps them in a Program node.  Optionally takes a
// `program` argument.  If present, the statements will be appended
// to its body instead of creating a new node.

pp.parseTopLevel = function (node) {
  var first = true;
  if (!node.body) node.body = [];
  while (this.type !== tt.eof) {
    var stmt = this.parseStatement(true, true);
    node.body.push(stmt);
    if (first && this.isUseStrict(stmt)) this.setStrict(true);
    first = false;
  }
  this.next();
  if (this.options.ecmaVersion >= 6) {
    node.sourceType = this.options.sourceType;
  }
  return this.finishNode(node, "Program");
};

var loopLabel = { kind: "loop" },
    switchLabel = { kind: "switch" };

// Parse a single statement.
//
// If expecting a statement and finding a slash operator, parse a
// regular expression literal. This is to handle cases like
// `if (foo) /blah/.exec(foo)`, where looking at the previous token
// does not help.

pp.parseStatement = function (declaration, topLevel) {
  var starttype = this.type,
      node = this.startNode();

  // Most types of statements are recognized by the keyword they
  // start with. Many are trivial to parse, some require a bit of
  // complexity.

  switch (starttype) {
    case tt._break:case tt._continue:
      return this.parseBreakContinueStatement(node, starttype.keyword);
    case tt._debugger:
      return this.parseDebuggerStatement(node);
    case tt._do:
      return this.parseDoStatement(node);
    case tt._for:
      return this.parseForStatement(node);
    case tt._function:
      if (!declaration && this.options.ecmaVersion >= 6) this.unexpected();
      return this.parseFunctionStatement(node);
    case tt._class:
      if (!declaration) this.unexpected();
      return this.parseClass(node, true);
    case tt._if:
      return this.parseIfStatement(node);
    case tt._return:
      return this.parseReturnStatement(node);
    case tt._switch:
      return this.parseSwitchStatement(node);
    case tt._throw:
      return this.parseThrowStatement(node);
    case tt._try:
      return this.parseTryStatement(node);
    case tt._let:case tt._const:
      if (!declaration) this.unexpected(); // NOTE: falls through to _var
    case tt._var:
      return this.parseVarStatement(node, starttype);
    case tt._while:
      return this.parseWhileStatement(node);
    case tt._with:
      return this.parseWithStatement(node);
    case tt.braceL:
      return this.parseBlock();
    case tt.semi:
      return this.parseEmptyStatement(node);
    case tt._export:
    case tt._import:
      if (!this.options.allowImportExportEverywhere) {
        if (!topLevel) this.raise(this.start, "'import' and 'export' may only appear at the top level");
        if (!this.inModule) this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'");
      }
      return starttype === tt._import ? this.parseImport(node) : this.parseExport(node);

    // If the statement does not start with a statement keyword or a
    // brace, it's an ExpressionStatement or LabeledStatement. We
    // simply start parsing an expression, and afterwards, if the
    // next token is a colon and the expression was a simple
    // Identifier node, we switch to interpreting it as a label.
    default:
      var maybeName = this.value,
          expr = this.parseExpression();
      if (starttype === tt.name && expr.type === "Identifier" && this.eat(tt.colon)) return this.parseLabeledStatement(node, maybeName, expr);else return this.parseExpressionStatement(node, expr);
  }
};

pp.parseBreakContinueStatement = function (node, keyword) {
  var isBreak = keyword == "break";
  this.next();
  if (this.eat(tt.semi) || this.insertSemicolon()) node.label = null;else if (this.type !== tt.name) this.unexpected();else {
    node.label = this.parseIdent();
    this.semicolon();
  }

  // Verify that there is an actual destination to break or
  // continue to.
  for (var i = 0; i < this.labels.length; ++i) {
    var lab = this.labels[i];
    if (node.label == null || lab.name === node.label.name) {
      if (lab.kind != null && (isBreak || lab.kind === "loop")) break;
      if (node.label && isBreak) break;
    }
  }
  if (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword);
  return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement");
};

pp.parseDebuggerStatement = function (node) {
  this.next();
  this.semicolon();
  return this.finishNode(node, "DebuggerStatement");
};

pp.parseDoStatement = function (node) {
  this.next();
  this.labels.push(loopLabel);
  node.body = this.parseStatement(false);
  this.labels.pop();
  this.expect(tt._while);
  node.test = this.parseParenExpression();
  if (this.options.ecmaVersion >= 6) this.eat(tt.semi);else this.semicolon();
  return this.finishNode(node, "DoWhileStatement");
};

// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
// loop is non-trivial. Basically, we have to parse the init `var`
// statement or expression, disallowing the `in` operator (see
// the second parameter to `parseExpression`), and then check
// whether the next token is `in` or `of`. When there is no init
// part (semicolon immediately after the opening parenthesis), it
// is a regular `for` loop.

pp.parseForStatement = function (node) {
  this.next();
  this.labels.push(loopLabel);
  this.expect(tt.parenL);
  if (this.type === tt.semi) return this.parseFor(node, null);
  if (this.type === tt._var || this.type === tt._let || this.type === tt._const) {
    var _init = this.startNode(),
        varKind = this.type;
    this.next();
    this.parseVar(_init, true, varKind);
    this.finishNode(_init, "VariableDeclaration");
    if ((this.type === tt._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) && _init.declarations.length === 1 && !(varKind !== tt._var && _init.declarations[0].init)) return this.parseForIn(node, _init);
    return this.parseFor(node, _init);
  }
  var refShorthandDefaultPos = { start: 0 };
  var init = this.parseExpression(true, refShorthandDefaultPos);
  if (this.type === tt._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) {
    this.toAssignable(init);
    this.checkLVal(init);
    return this.parseForIn(node, init);
  } else if (refShorthandDefaultPos.start) {
    this.unexpected(refShorthandDefaultPos.start);
  }
  return this.parseFor(node, init);
};

pp.parseFunctionStatement = function (node) {
  this.next();
  return this.parseFunction(node, true);
};

pp.parseIfStatement = function (node) {
  this.next();
  node.test = this.parseParenExpression();
  node.consequent = this.parseStatement(false);
  node.alternate = this.eat(tt._else) ? this.parseStatement(false) : null;
  return this.finishNode(node, "IfStatement");
};

pp.parseReturnStatement = function (node) {
  if (!this.inFunction && !this.options.allowReturnOutsideFunction) this.raise(this.start, "'return' outside of function");
  this.next();

  // In `return` (and `break`/`continue`), the keywords with
  // optional arguments, we eagerly look for a semicolon or the
  // possibility to insert one.

  if (this.eat(tt.semi) || this.insertSemicolon()) node.argument = null;else {
    node.argument = this.parseExpression();this.semicolon();
  }
  return this.finishNode(node, "ReturnStatement");
};

pp.parseSwitchStatement = function (node) {
  this.next();
  node.discriminant = this.parseParenExpression();
  node.cases = [];
  this.expect(tt.braceL);
  this.labels.push(switchLabel);

  // Statements under must be grouped (by label) in SwitchCase
  // nodes. `cur` is used to keep the node that we are currently
  // adding statements to.

  for (var cur, sawDefault; this.type != tt.braceR;) {
    if (this.type === tt._case || this.type === tt._default) {
      var isCase = this.type === tt._case;
      if (cur) this.finishNode(cur, "SwitchCase");
      node.cases.push(cur = this.startNode());
      cur.consequent = [];
      this.next();
      if (isCase) {
        cur.test = this.parseExpression();
      } else {
        if (sawDefault) this.raise(this.lastTokStart, "Multiple default clauses");
        sawDefault = true;
        cur.test = null;
      }
      this.expect(tt.colon);
    } else {
      if (!cur) this.unexpected();
      cur.consequent.push(this.parseStatement(true));
    }
  }
  if (cur) this.finishNode(cur, "SwitchCase");
  this.next(); // Closing brace
  this.labels.pop();
  return this.finishNode(node, "SwitchStatement");
};

pp.parseThrowStatement = function (node) {
  this.next();
  if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) this.raise(this.lastTokEnd, "Illegal newline after throw");
  node.argument = this.parseExpression();
  this.semicolon();
  return this.finishNode(node, "ThrowStatement");
};

// Reused empty array added for node fields that are always empty.

var empty = [];

pp.parseTryStatement = function (node) {
  this.next();
  node.block = this.parseBlock();
  node.handler = null;
  if (this.type === tt._catch) {
    var clause = this.startNode();
    this.next();
    this.expect(tt.parenL);
    clause.param = this.parseBindingAtom();
    this.checkLVal(clause.param, true);
    this.expect(tt.parenR);
    clause.guard = null;
    clause.body = this.parseBlock();
    node.handler = this.finishNode(clause, "CatchClause");
  }
  node.guardedHandlers = empty;
  node.finalizer = this.eat(tt._finally) ? this.parseBlock() : null;
  if (!node.handler && !node.finalizer) this.raise(node.start, "Missing catch or finally clause");
  return this.finishNode(node, "TryStatement");
};

pp.parseVarStatement = function (node, kind) {
  this.next();
  this.parseVar(node, false, kind);
  this.semicolon();
  return this.finishNode(node, "VariableDeclaration");
};

pp.parseWhileStatement = function (node) {
  this.next();
  node.test = this.parseParenExpression();
  this.labels.push(loopLabel);
  node.body = this.parseStatement(false);
  this.labels.pop();
  return this.finishNode(node, "WhileStatement");
};

pp.parseWithStatement = function (node) {
  if (this.strict) this.raise(this.start, "'with' in strict mode");
  this.next();
  node.object = this.parseParenExpression();
  node.body = this.parseStatement(false);
  return this.finishNode(node, "WithStatement");
};

pp.parseEmptyStatement = function (node) {
  this.next();
  return this.finishNode(node, "EmptyStatement");
};

pp.parseLabeledStatement = function (node, maybeName, expr) {
  for (var i = 0; i < this.labels.length; ++i) {
    if (this.labels[i].name === maybeName) this.raise(expr.start, "Label '" + maybeName + "' is already declared");
  }var kind = this.type.isLoop ? "loop" : this.type === tt._switch ? "switch" : null;
  this.labels.push({ name: maybeName, kind: kind });
  node.body = this.parseStatement(true);
  this.labels.pop();
  node.label = expr;
  return this.finishNode(node, "LabeledStatement");
};

pp.parseExpressionStatement = function (node, expr) {
  node.expression = expr;
  this.semicolon();
  return this.finishNode(node, "ExpressionStatement");
};

// Parse a semicolon-enclosed block of statements, handling `"use
// strict"` declarations when `allowStrict` is true (used for
// function bodies).

pp.parseBlock = function (allowStrict) {
  var node = this.startNode(),
      first = true,
      oldStrict = undefined;
  node.body = [];
  this.expect(tt.braceL);
  while (!this.eat(tt.braceR)) {
    var stmt = this.parseStatement(true);
    node.body.push(stmt);
    if (first && allowStrict && this.isUseStrict(stmt)) {
      oldStrict = this.strict;
      this.setStrict(this.strict = true);
    }
    first = false;
  }
  if (oldStrict === false) this.setStrict(false);
  return this.finishNode(node, "BlockStatement");
};

// Parse a regular `for` loop. The disambiguation code in
// `parseStatement` will already have parsed the init statement or
// expression.

pp.parseFor = function (node, init) {
  node.init = init;
  this.expect(tt.semi);
  node.test = this.type === tt.semi ? null : this.parseExpression();
  this.expect(tt.semi);
  node.update = this.type === tt.parenR ? null : this.parseExpression();
  this.expect(tt.parenR);
  node.body = this.parseStatement(false);
  this.labels.pop();
  return this.finishNode(node, "ForStatement");
};

// Parse a `for`/`in` and `for`/`of` loop, which are almost
// same from parser's perspective.

pp.parseForIn = function (node, init) {
  var type = this.type === tt._in ? "ForInStatement" : "ForOfStatement";
  this.next();
  node.left = init;
  node.right = this.parseExpression();
  this.expect(tt.parenR);
  node.body = this.parseStatement(false);
  this.labels.pop();
  return this.finishNode(node, type);
};

// Parse a list of variable declarations.

pp.parseVar = function (node, isFor, kind) {
  node.declarations = [];
  node.kind = kind.keyword;
  for (;;) {
    var decl = this.startNode();
    this.parseVarId(decl);
    if (this.eat(tt.eq)) {
      decl.init = this.parseMaybeAssign(isFor);
    } else if (kind === tt._const && !(this.type === tt._in || this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
      this.unexpected();
    } else if (decl.id.type != "Identifier" && !(isFor && (this.type === tt._in || this.isContextual("of")))) {
      this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value");
    } else {
      decl.init = null;
    }
    node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
    if (!this.eat(tt.comma)) break;
  }
  return node;
};

pp.parseVarId = function (decl) {
  decl.id = this.parseBindingAtom();
  this.checkLVal(decl.id, true);
};

// Parse a function declaration or literal (depending on the
// `isStatement` parameter).

pp.parseFunction = function (node, isStatement, allowExpressionBody) {
  this.initFunction(node);
  if (this.options.ecmaVersion >= 6) node.generator = this.eat(tt.star);
  if (isStatement || this.type === tt.name) node.id = this.parseIdent();
  this.parseFunctionParams(node);
  this.parseFunctionBody(node, allowExpressionBody);
  return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression");
};

pp.parseFunctionParams = function (node) {
  this.expect(tt.parenL);
  node.params = this.parseBindingList(tt.parenR, false, false);
};

// Parse a class declaration or literal (depending on the
// `isStatement` parameter).

pp.parseClass = function (node, isStatement) {
  this.next();
  this.parseClassId(node, isStatement);
  this.parseClassSuper(node);
  var classBody = this.startNode();
  var hadConstructor = false;
  classBody.body = [];
  this.expect(tt.braceL);
  while (!this.eat(tt.braceR)) {
    if (this.eat(tt.semi)) continue;
    var method = this.startNode();
    var isGenerator = this.eat(tt.star);
    var isMaybeStatic = this.type === tt.name && this.value === "static";
    this.parsePropertyName(method);
    method["static"] = isMaybeStatic && this.type !== tt.parenL;
    if (method["static"]) {
      if (isGenerator) this.unexpected();
      isGenerator = this.eat(tt.star);
      this.parsePropertyName(method);
    }
    method.kind = "method";
    if (!method.computed) {
      var key = method.key;

      var isGetSet = false;
      if (!isGenerator && key.type === "Identifier" && this.type !== tt.parenL && (key.name === "get" || key.name === "set")) {
        isGetSet = true;
        method.kind = key.name;
        key = this.parsePropertyName(method);
      }
      if (!method["static"] && (key.type === "Identifier" && key.name === "constructor" || key.type === "Literal" && key.value === "constructor")) {
        if (hadConstructor) this.raise(key.start, "Duplicate constructor in the same class");
        if (isGetSet) this.raise(key.start, "Constructor can't have get/set modifier");
        if (isGenerator) this.raise(key.start, "Constructor can't be a generator");
        method.kind = "constructor";
        hadConstructor = true;
      }
    }
    this.parseClassMethod(classBody, method, isGenerator);
  }
  node.body = this.finishNode(classBody, "ClassBody");
  return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression");
};

pp.parseClassMethod = function (classBody, method, isGenerator) {
  method.value = this.parseMethod(isGenerator);
  classBody.body.push(this.finishNode(method, "MethodDefinition"));
};

pp.parseClassId = function (node, isStatement) {
  node.id = this.type === tt.name ? this.parseIdent() : isStatement ? this.unexpected() : null;
};

pp.parseClassSuper = function (node) {
  node.superClass = this.eat(tt._extends) ? this.parseExprSubscripts() : null;
};

// Parses module export declaration.

pp.parseExport = function (node) {
  this.next();
  // export * from '...'
  if (this.eat(tt.star)) {
    this.expectContextual("from");
    node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected();
    this.semicolon();
    return this.finishNode(node, "ExportAllDeclaration");
  }
  if (this.eat(tt._default)) {
    // export default ...
    var expr = this.parseMaybeAssign();
    var needsSemi = true;
    if (expr.type == "FunctionExpression" || expr.type == "ClassExpression") {
      needsSemi = false;
      if (expr.id) {
        expr.type = expr.type == "FunctionExpression" ? "FunctionDeclaration" : "ClassDeclaration";
      }
    }
    node.declaration = expr;
    if (needsSemi) this.semicolon();
    return this.finishNode(node, "ExportDefaultDeclaration");
  }
  // export var|const|let|function|class ...
  if (this.shouldParseExportStatement()) {
    node.declaration = this.parseStatement(true);
    node.specifiers = [];
    node.source = null;
  } else {
    // export { x, y as z } [from '...']
    node.declaration = null;
    node.specifiers = this.parseExportSpecifiers();
    if (this.eatContextual("from")) {
      node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected();
    } else {
      node.source = null;
    }
    this.semicolon();
  }
  return this.finishNode(node, "ExportNamedDeclaration");
};

pp.shouldParseExportStatement = function () {
  return this.type.keyword;
};

// Parses a comma-separated list of module exports.

pp.parseExportSpecifiers = function () {
  var nodes = [],
      first = true;
  // export { x, y as z } [from '...']
  this.expect(tt.braceL);
  while (!this.eat(tt.braceR)) {
    if (!first) {
      this.expect(tt.comma);
      if (this.afterTrailingComma(tt.braceR)) break;
    } else first = false;

    var node = this.startNode();
    node.local = this.parseIdent(this.type === tt._default);
    node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local;
    nodes.push(this.finishNode(node, "ExportSpecifier"));
  }
  return nodes;
};

// Parses import declaration.

pp.parseImport = function (node) {
  this.next();
  // import '...'
  if (this.type === tt.string) {
    node.specifiers = empty;
    node.source = this.parseExprAtom();
    node.kind = "";
  } else {
    node.specifiers = this.parseImportSpecifiers();
    this.expectContextual("from");
    node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected();
  }
  this.semicolon();
  return this.finishNode(node, "ImportDeclaration");
};

// Parses a comma-separated list of module imports.

pp.parseImportSpecifiers = function () {
  var nodes = [],
      first = true;
  if (this.type === tt.name) {
    // import defaultObj, { x, y as z } from '...'
    var node = this.startNode();
    node.local = this.parseIdent();
    this.checkLVal(node.local, true);
    nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
    if (!this.eat(tt.comma)) return nodes;
  }
  if (this.type === tt.star) {
    var node = this.startNode();
    this.next();
    this.expectContextual("as");
    node.local = this.parseIdent();
    this.checkLVal(node.local, true);
    nodes.push(this.finishNode(node, "ImportNamespaceSpecifier"));
    return nodes;
  }
  this.expect(tt.braceL);
  while (!this.eat(tt.braceR)) {
    if (!first) {
      this.expect(tt.comma);
      if (this.afterTrailingComma(tt.braceR)) break;
    } else first = false;

    var node = this.startNode();
    node.imported = this.parseIdent(true);
    node.local = this.eatContextual("as") ? this.parseIdent() : node.imported;
    this.checkLVal(node.local, true);
    nodes.push(this.finishNode(node, "ImportSpecifier"));
  }
  return nodes;
};

},{"./state":13,"./tokentype":17,"./whitespace":19}],15:[function(_dereq_,module,exports){
"use strict";

var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };

exports.__esModule = true;
// The algorithm used to determine whether a regexp can appear at a
// given point in the program is loosely based on sweet.js' approach.
// See https://github.com/mozilla/sweet.js/wiki/design

var Parser = _dereq_("./state").Parser;

var tt = _dereq_("./tokentype").types;

var lineBreak = _dereq_("./whitespace").lineBreak;

var TokContext = exports.TokContext = function TokContext(token, isExpr, preserveSpace, override) {
  _classCallCheck(this, TokContext);

  this.token = token;
  this.isExpr = isExpr;
  this.preserveSpace = preserveSpace;
  this.override = override;
};

var types = {
  b_stat: new TokContext("{", false),
  b_expr: new TokContext("{", true),
  b_tmpl: new TokContext("${", true),
  p_stat: new TokContext("(", false),
  p_expr: new TokContext("(", true),
  q_tmpl: new TokContext("`", true, true, function (p) {
    return p.readTmplToken();
  }),
  f_expr: new TokContext("function", true)
};

exports.types = types;
var pp = Parser.prototype;

pp.initialContext = function () {
  return [types.b_stat];
};

pp.braceIsBlock = function (prevType) {
  var parent = undefined;
  if (prevType === tt.colon && (parent = this.curContext()).token == "{") return !parent.isExpr;
  if (prevType === tt._return) return lineBreak.test(this.input.slice(this.lastTokEnd, this.start));
  if (prevType === tt._else || prevType === tt.semi || prevType === tt.eof) return true;
  if (prevType == tt.braceL) return this.curContext() === types.b_stat;
  return !this.exprAllowed;
};

pp.updateContext = function (prevType) {
  var update = undefined,
      type = this.type;
  if (type.keyword && prevType == tt.dot) this.exprAllowed = false;else if (update = type.updateContext) update.call(this, prevType);else this.exprAllowed = type.beforeExpr;
};

// Token-specific context update code

tt.parenR.updateContext = tt.braceR.updateContext = function () {
  if (this.context.length == 1) {
    this.exprAllowed = true;
    return;
  }
  var out = this.context.pop();
  if (out === types.b_stat && this.curContext() === types.f_expr) {
    this.context.pop();
    this.exprAllowed = false;
  } else if (out === types.b_tmpl) {
    this.exprAllowed = true;
  } else {
    this.exprAllowed = !out.isExpr;
  }
};

tt.braceL.updateContext = function (prevType) {
  this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr);
  this.exprAllowed = true;
};

tt.dollarBraceL.updateContext = function () {
  this.context.push(types.b_tmpl);
  this.exprAllowed = true;
};

tt.parenL.updateContext = function (prevType) {
  var statementParens = prevType === tt._if || prevType === tt._for || prevType === tt._with || prevType === tt._while;
  this.context.push(statementParens ? types.p_stat : types.p_expr);
  this.exprAllowed = true;
};

tt.incDec.updateContext = function () {};

tt._function.updateContext = function () {
  if (this.curContext() !== types.b_stat) this.context.push(types.f_expr);
  this.exprAllowed = false;
};

tt.backQuote.updateContext = function () {
  if (this.curContext() === types.q_tmpl) this.context.pop();else this.context.push(types.q_tmpl);
  this.exprAllowed = false;
};

// tokExprAllowed stays unchanged

},{"./state":13,"./tokentype":17,"./whitespace":19}],16:[function(_dereq_,module,exports){
"use strict";

var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };

exports.__esModule = true;

var _identifier = _dereq_("./identifier");

var isIdentifierStart = _identifier.isIdentifierStart;
var isIdentifierChar = _identifier.isIdentifierChar;

var _tokentype = _dereq_("./tokentype");

var tt = _tokentype.types;
var keywordTypes = _tokentype.keywords;

var Parser = _dereq_("./state").Parser;

var SourceLocation = _dereq_("./location").SourceLocation;

var _whitespace = _dereq_("./whitespace");

var lineBreak = _whitespace.lineBreak;
var lineBreakG = _whitespace.lineBreakG;
var isNewLine = _whitespace.isNewLine;
var nonASCIIwhitespace = _whitespace.nonASCIIwhitespace;

// Object type used to represent tokens. Note that normally, tokens
// simply exist as properties on the parser object. This is only
// used for the onToken callback and the external tokenizer.

var Token = exports.Token = function Token(p) {
  _classCallCheck(this, Token);

  this.type = p.type;
  this.value = p.value;
  this.start = p.start;
  this.end = p.end;
  if (p.options.locations) this.loc = new SourceLocation(p, p.startLoc, p.endLoc);
  if (p.options.ranges) this.range = [p.start, p.end];
};

// ## Tokenizer

var pp = Parser.prototype;

// Are we running under Rhino?
var isRhino = typeof Packages !== "undefined";

// Move to the next token

pp.next = function () {
  if (this.options.onToken) this.options.onToken(new Token(this));

  this.lastTokEnd = this.end;
  this.lastTokStart = this.start;
  this.lastTokEndLoc = this.endLoc;
  this.lastTokStartLoc = this.startLoc;
  this.nextToken();
};

pp.getToken = function () {
  this.next();
  return new Token(this);
};

// If we're in an ES6 environment, make parsers iterable
if (typeof Symbol !== "undefined") pp[Symbol.iterator] = function () {
  var self = this;
  return { next: function next() {
      var token = self.getToken();
      return {
        done: token.type === tt.eof,
        value: token
      };
    } };
};

// Toggle strict mode. Re-reads the next number or string to please
// pedantic tests (`"use strict"; 010;` should fail).

pp.setStrict = function (strict) {
  this.strict = strict;
  if (this.type !== tt.num && this.type !== tt.string) return;
  this.pos = this.start;
  if (this.options.locations) {
    while (this.pos < this.lineStart) {
      this.lineStart = this.input.lastIndexOf("\n", this.lineStart - 2) + 1;
      --this.curLine;
    }
  }
  this.nextToken();
};

pp.curContext = function () {
  return this.context[this.context.length - 1];
};

// Read a single token, updating the parser object's token-related
// properties.

pp.nextToken = function () {
  var curContext = this.curContext();
  if (!curContext || !curContext.preserveSpace) this.skipSpace();

  this.start = this.pos;
  if (this.options.locations) this.startLoc = this.curPosition();
  if (this.pos >= this.input.length) return this.finishToken(tt.eof);

  if (curContext.override) return curContext.override(this);else this.readToken(this.fullCharCodeAtPos());
};

pp.readToken = function (code) {
  // Identifier or keyword. '\uXXXX' sequences are allowed in
  // identifiers, so '\' also dispatches to that.
  if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */) return this.readWord();

  return this.getTokenFromCode(code);
};

pp.fullCharCodeAtPos = function () {
  var code = this.input.charCodeAt(this.pos);
  if (code <= 55295 || code >= 57344) return code;
  var next = this.input.charCodeAt(this.pos + 1);
  return (code << 10) + next - 56613888;
};

pp.skipBlockComment = function () {
  var startLoc = this.options.onComment && this.options.locations && this.curPosition();
  var start = this.pos,
      end = this.input.indexOf("*/", this.pos += 2);
  if (end === -1) this.raise(this.pos - 2, "Unterminated comment");
  this.pos = end + 2;
  if (this.options.locations) {
    lineBreakG.lastIndex = start;
    var match = undefined;
    while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
      ++this.curLine;
      this.lineStart = match.index + match[0].length;
    }
  }
  if (this.options.onComment) this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos, startLoc, this.options.locations && this.curPosition());
};

pp.skipLineComment = function (startSkip) {
  var start = this.pos;
  var startLoc = this.options.onComment && this.options.locations && this.curPosition();
  var ch = this.input.charCodeAt(this.pos += startSkip);
  while (this.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) {
    ++this.pos;
    ch = this.input.charCodeAt(this.pos);
  }
  if (this.options.onComment) this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos, startLoc, this.options.locations && this.curPosition());
};

// Called at the start of the parse and after every token. Skips
// whitespace and comments, and.

pp.skipSpace = function () {
  while (this.pos < this.input.length) {
    var ch = this.input.charCodeAt(this.pos);
    if (ch === 32) {
      // ' '
      ++this.pos;
    } else if (ch === 13) {
      ++this.pos;
      var next = this.input.charCodeAt(this.pos);
      if (next === 10) {
        ++this.pos;
      }
      if (this.options.locations) {
        ++this.curLine;
        this.lineStart = this.pos;
      }
    } else if (ch === 10 || ch === 8232 || ch === 8233) {
      ++this.pos;
      if (this.options.locations) {
        ++this.curLine;
        this.lineStart = this.pos;
      }
    } else if (ch > 8 && ch < 14) {
      ++this.pos;
    } else if (ch === 47) {
      // '/'
      var next = this.input.charCodeAt(this.pos + 1);
      if (next === 42) {
        // '*'
        this.skipBlockComment();
      } else if (next === 47) {
        // '/'
        this.skipLineComment(2);
      } else break;
    } else if (ch === 160) {
      // '\xa0'
      ++this.pos;
    } else if (ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
      ++this.pos;
    } else {
      break;
    }
  }
};

// Called at the end of every token. Sets `end`, `val`, and
// maintains `context` and `exprAllowed`, and skips the space after
// the token, so that the next one's `start` will point at the
// right position.

pp.finishToken = function (type, val) {
  this.end = this.pos;
  if (this.options.locations) this.endLoc = this.curPosition();
  var prevType = this.type;
  this.type = type;
  this.value = val;

  this.updateContext(prevType);
};

// ### Token reading

// This is the function that is called to fetch the next token. It
// is somewhat obscure, because it works in character codes rather
// than characters, and because operator parsing has been inlined
// into it.
//
// All in the name of speed.
//
pp.readToken_dot = function () {
  var next = this.input.charCodeAt(this.pos + 1);
  if (next >= 48 && next <= 57) return this.readNumber(true);
  var next2 = this.input.charCodeAt(this.pos + 2);
  if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) {
    // 46 = dot '.'
    this.pos += 3;
    return this.finishToken(tt.ellipsis);
  } else {
    ++this.pos;
    return this.finishToken(tt.dot);
  }
};

pp.readToken_slash = function () {
  // '/'
  var next = this.input.charCodeAt(this.pos + 1);
  if (this.exprAllowed) {
    ++this.pos;return this.readRegexp();
  }
  if (next === 61) return this.finishOp(tt.assign, 2);
  return this.finishOp(tt.slash, 1);
};

pp.readToken_mult_modulo = function (code) {
  // '%*'
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === 61) return this.finishOp(tt.assign, 2);
  return this.finishOp(code === 42 ? tt.star : tt.modulo, 1);
};

pp.readToken_pipe_amp = function (code) {
  // '|&'
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === code) return this.finishOp(code === 124 ? tt.logicalOR : tt.logicalAND, 2);
  if (next === 61) return this.finishOp(tt.assign, 2);
  return this.finishOp(code === 124 ? tt.bitwiseOR : tt.bitwiseAND, 1);
};

pp.readToken_caret = function () {
  // '^'
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === 61) return this.finishOp(tt.assign, 2);
  return this.finishOp(tt.bitwiseXOR, 1);
};

pp.readToken_plus_min = function (code) {
  // '+-'
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === code) {
    if (next == 45 && this.input.charCodeAt(this.pos + 2) == 62 && lineBreak.test(this.input.slice(this.lastTokEnd, this.pos))) {
      // A `-->` line comment
      this.skipLineComment(3);
      this.skipSpace();
      return this.nextToken();
    }
    return this.finishOp(tt.incDec, 2);
  }
  if (next === 61) return this.finishOp(tt.assign, 2);
  return this.finishOp(tt.plusMin, 1);
};

pp.readToken_lt_gt = function (code) {
  // '<>'
  var next = this.input.charCodeAt(this.pos + 1);
  var size = 1;
  if (next === code) {
    size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
    if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(tt.assign, size + 1);
    return this.finishOp(tt.bitShift, size);
  }
  if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 && this.input.charCodeAt(this.pos + 3) == 45) {
    if (this.inModule) this.unexpected();
    // `<!--`, an XML-style comment that should be interpreted as a line comment
    this.skipLineComment(4);
    this.skipSpace();
    return this.nextToken();
  }
  if (next === 61) size = this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2;
  return this.finishOp(tt.relational, size);
};

pp.readToken_eq_excl = function (code) {
  // '=!'
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === 61) return this.finishOp(tt.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2);
  if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) {
    // '=>'
    this.pos += 2;
    return this.finishToken(tt.arrow);
  }
  return this.finishOp(code === 61 ? tt.eq : tt.prefix, 1);
};

pp.getTokenFromCode = function (code) {
  switch (code) {
    // The interpretation of a dot depends on whether it is followed
    // by a digit or another two dots.
    case 46:
      // '.'
      return this.readToken_dot();

    // Punctuation tokens.
    case 40:
      ++this.pos;return this.finishToken(tt.parenL);
    case 41:
      ++this.pos;return this.finishToken(tt.parenR);
    case 59:
      ++this.pos;return this.finishToken(tt.semi);
    case 44:
      ++this.pos;return this.finishToken(tt.comma);
    case 91:
      ++this.pos;return this.finishToken(tt.bracketL);
    case 93:
      ++this.pos;return this.finishToken(tt.bracketR);
    case 123:
      ++this.pos;return this.finishToken(tt.braceL);
    case 125:
      ++this.pos;return this.finishToken(tt.braceR);
    case 58:
      ++this.pos;return this.finishToken(tt.colon);
    case 63:
      ++this.pos;return this.finishToken(tt.question);

    case 96:
      // '`'
      if (this.options.ecmaVersion < 6) break;
      ++this.pos;
      return this.finishToken(tt.backQuote);

    case 48:
      // '0'
      var next = this.input.charCodeAt(this.pos + 1);
      if (next === 120 || next === 88) return this.readRadixNumber(16); // '0x', '0X' - hex number
      if (this.options.ecmaVersion >= 6) {
        if (next === 111 || next === 79) return this.readRadixNumber(8); // '0o', '0O' - octal number
        if (next === 98 || next === 66) return this.readRadixNumber(2); // '0b', '0B' - binary number
      }
    // Anything else beginning with a digit is an integer, octal
    // number, or float.
    case 49:case 50:case 51:case 52:case 53:case 54:case 55:case 56:case 57:
      // 1-9
      return this.readNumber(false);

    // Quotes produce strings.
    case 34:case 39:
      // '"', "'"
      return this.readString(code);

    // Operators are parsed inline in tiny state machines. '=' (61) is
    // often referred to. `finishOp` simply skips the amount of
    // characters it is given as second argument, and returns a token
    // of the type given by its first argument.

    case 47:
      // '/'
      return this.readToken_slash();

    case 37:case 42:
      // '%*'
      return this.readToken_mult_modulo(code);

    case 124:case 38:
      // '|&'
      return this.readToken_pipe_amp(code);

    case 94:
      // '^'
      return this.readToken_caret();

    case 43:case 45:
      // '+-'
      return this.readToken_plus_min(code);

    case 60:case 62:
      // '<>'
      return this.readToken_lt_gt(code);

    case 61:case 33:
      // '=!'
      return this.readToken_eq_excl(code);

    case 126:
      // '~'
      return this.finishOp(tt.prefix, 1);
  }

  this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
};

pp.finishOp = function (type, size) {
  var str = this.input.slice(this.pos, this.pos + size);
  this.pos += size;
  return this.finishToken(type, str);
};

var regexpUnicodeSupport = false;
try {
  new RegExp("￿", "u");regexpUnicodeSupport = true;
} catch (e) {}

// Parse a regular expression. Some context-awareness is necessary,
// since a '/' inside a '[]' set does not end the expression.

pp.readRegexp = function () {
  var escaped = undefined,
      inClass = undefined,
      start = this.pos;
  for (;;) {
    if (this.pos >= this.input.length) this.raise(start, "Unterminated regular expression");
    var ch = this.input.charAt(this.pos);
    if (lineBreak.test(ch)) this.raise(start, "Unterminated regular expression");
    if (!escaped) {
      if (ch === "[") inClass = true;else if (ch === "]" && inClass) inClass = false;else if (ch === "/" && !inClass) break;
      escaped = ch === "\\";
    } else escaped = false;
    ++this.pos;
  }
  var content = this.input.slice(start, this.pos);
  ++this.pos;
  // Need to use `readWord1` because '\uXXXX' sequences are allowed
  // here (don't ask).
  var mods = this.readWord1();
  var tmp = content;
  if (mods) {
    var validFlags = /^[gmsiy]*$/;
    if (this.options.ecmaVersion >= 6) validFlags = /^[gmsiyu]*$/;
    if (!validFlags.test(mods)) this.raise(start, "Invalid regular expression flag");
    if (mods.indexOf("u") >= 0 && !regexpUnicodeSupport) {
      // Replace each astral symbol and every Unicode escape sequence that
      // possibly represents an astral symbol or a paired surrogate with a
      // single ASCII symbol to avoid throwing on regular expressions that
      // are only valid in combination with the `/u` flag.
      // Note: replacing with the ASCII symbol `x` might cause false
      // negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
      // perfectly valid pattern that is equivalent to `[a-b]`, but it would
      // be replaced by `[x-b]` which throws an error.
      tmp = tmp.replace(/\\u([a-fA-F0-9]{4})|\\u\{([0-9a-fA-F]+)\}|[\uD800-\uDBFF][\uDC00-\uDFFF]/g, "x");
    }
  }
  // Detect invalid regular expressions.
  var value = null;
  // Rhino's regular expression parser is flaky and throws uncatchable exceptions,
  // so don't do detection if we are running under Rhino
  if (!isRhino) {
    try {
      new RegExp(tmp);
    } catch (e) {
      if (e instanceof SyntaxError) this.raise(start, "Error parsing regular expression: " + e.message);
      this.raise(e);
    }
    // Get a regular expression object for this pattern-flag pair, or `null` in
    // case the current environment doesn't support the flags it uses.
    try {
      value = new RegExp(content, mods);
    } catch (err) {}
  }
  return this.finishToken(tt.regexp, { pattern: content, flags: mods, value: value });
};

// Read an integer in the given radix. Return null if zero digits
// were read, the integer value otherwise. When `len` is given, this
// will return `null` unless the integer has exactly `len` digits.

pp.readInt = function (radix, len) {
  var start = this.pos,
      total = 0;
  for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {
    var code = this.input.charCodeAt(this.pos),
        val = undefined;
    if (code >= 97) val = code - 97 + 10; // a
    else if (code >= 65) val = code - 65 + 10; // A
    else if (code >= 48 && code <= 57) val = code - 48; // 0-9
    else val = Infinity;
    if (val >= radix) break;
    ++this.pos;
    total = total * radix + val;
  }
  if (this.pos === start || len != null && this.pos - start !== len) return null;

  return total;
};

pp.readRadixNumber = function (radix) {
  this.pos += 2; // 0x
  var val = this.readInt(radix);
  if (val == null) this.raise(this.start + 2, "Expected number in radix " + radix);
  if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number");
  return this.finishToken(tt.num, val);
};

// Read an integer, octal integer, or floating-point number.

pp.readNumber = function (startsWithDot) {
  var start = this.pos,
      isFloat = false,
      octal = this.input.charCodeAt(this.pos) === 48;
  if (!startsWithDot && this.readInt(10) === null) this.raise(start, "Invalid number");
  if (this.input.charCodeAt(this.pos) === 46) {
    ++this.pos;
    this.readInt(10);
    isFloat = true;
  }
  var next = this.input.charCodeAt(this.pos);
  if (next === 69 || next === 101) {
    // 'eE'
    next = this.input.charCodeAt(++this.pos);
    if (next === 43 || next === 45) ++this.pos; // '+-'
    if (this.readInt(10) === null) this.raise(start, "Invalid number");
    isFloat = true;
  }
  if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number");

  var str = this.input.slice(start, this.pos),
      val = undefined;
  if (isFloat) val = parseFloat(str);else if (!octal || str.length === 1) val = parseInt(str, 10);else if (/[89]/.test(str) || this.strict) this.raise(start, "Invalid number");else val = parseInt(str, 8);
  return this.finishToken(tt.num, val);
};

// Read a string value, interpreting backslash-escapes.

pp.readCodePoint = function () {
  var ch = this.input.charCodeAt(this.pos),
      code = undefined;

  if (ch === 123) {
    if (this.options.ecmaVersion < 6) this.unexpected();
    ++this.pos;
    code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
    ++this.pos;
    if (code > 1114111) this.unexpected();
  } else {
    code = this.readHexChar(4);
  }
  return code;
};

function codePointToString(code) {
  // UTF-16 Decoding
  if (code <= 65535) {
    return String.fromCharCode(code);
  }return String.fromCharCode((code - 65536 >> 10) + 55296, (code - 65536 & 1023) + 56320);
}

pp.readString = function (quote) {
  var out = "",
      chunkStart = ++this.pos;
  for (;;) {
    if (this.pos >= this.input.length) this.raise(this.start, "Unterminated string constant");
    var ch = this.input.charCodeAt(this.pos);
    if (ch === quote) break;
    if (ch === 92) {
      // '\'
      out += this.input.slice(chunkStart, this.pos);
      out += this.readEscapedChar();
      chunkStart = this.pos;
    } else {
      if (isNewLine(ch)) this.raise(this.start, "Unterminated string constant");
      ++this.pos;
    }
  }
  out += this.input.slice(chunkStart, this.pos++);
  return this.finishToken(tt.string, out);
};

// Reads template string tokens.

pp.readTmplToken = function () {
  var out = "",
      chunkStart = this.pos;
  for (;;) {
    if (this.pos >= this.input.length) this.raise(this.start, "Unterminated template");
    var ch = this.input.charCodeAt(this.pos);
    if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) {
      // '`', '${'
      if (this.pos === this.start && this.type === tt.template) {
        if (ch === 36) {
          this.pos += 2;
          return this.finishToken(tt.dollarBraceL);
        } else {
          ++this.pos;
          return this.finishToken(tt.backQuote);
        }
      }
      out += this.input.slice(chunkStart, this.pos);
      return this.finishToken(tt.template, out);
    }
    if (ch === 92) {
      // '\'
      out += this.input.slice(chunkStart, this.pos);
      out += this.readEscapedChar();
      chunkStart = this.pos;
    } else if (isNewLine(ch)) {
      out += this.input.slice(chunkStart, this.pos);
      ++this.pos;
      if (ch === 13 && this.input.charCodeAt(this.pos) === 10) {
        ++this.pos;
        out += "\n";
      } else {
        out += String.fromCharCode(ch);
      }
      if (this.options.locations) {
        ++this.curLine;
        this.lineStart = this.pos;
      }
      chunkStart = this.pos;
    } else {
      ++this.pos;
    }
  }
};

// Used to read escaped characters

pp.readEscapedChar = function () {
  var ch = this.input.charCodeAt(++this.pos);
  var octal = /^[0-7]+/.exec(this.input.slice(this.pos, this.pos + 3));
  if (octal) octal = octal[0];
  while (octal && parseInt(octal, 8) > 255) octal = octal.slice(0, -1);
  if (octal === "0") octal = null;
  ++this.pos;
  if (octal) {
    if (this.strict) this.raise(this.pos - 2, "Octal literal in strict mode");
    this.pos += octal.length - 1;
    return String.fromCharCode(parseInt(octal, 8));
  } else {
    switch (ch) {
      case 110:
        return "\n"; // 'n' -> '\n'
      case 114:
        return "\r"; // 'r' -> '\r'
      case 120:
        return String.fromCharCode(this.readHexChar(2)); // 'x'
      case 117:
        return codePointToString(this.readCodePoint()); // 'u'
      case 116:
        return "\t"; // 't' -> '\t'
      case 98:
        return "\b"; // 'b' -> '\b'
      case 118:
        return "\u000b"; // 'v' -> '\u000b'
      case 102:
        return "\f"; // 'f' -> '\f'
      case 48:
        return "\u0000"; // 0 -> '\0'
      case 13:
        if (this.input.charCodeAt(this.pos) === 10) ++this.pos; // '\r\n'
      case 10:
        // ' \n'
        if (this.options.locations) {
          this.lineStart = this.pos;++this.curLine;
        }
        return "";
      default:
        return String.fromCharCode(ch);
    }
  }
};

// Used to read character escape sequences ('\x', '\u', '\U').

pp.readHexChar = function (len) {
  var n = this.readInt(16, len);
  if (n === null) this.raise(this.start, "Bad character escape sequence");
  return n;
};

// Used to signal to callers of `readWord1` whether the word
// contained any escape sequences. This is needed because words with
// escape sequences must not be interpreted as keywords.

var containsEsc;

// Read an identifier, and return it as a string. Sets `containsEsc`
// to whether the word contained a '\u' escape.
//
// Incrementally adds only escaped chars, adding other chunks as-is
// as a micro-optimization.

pp.readWord1 = function () {
  containsEsc = false;
  var word = "",
      first = true,
      chunkStart = this.pos;
  var astral = this.options.ecmaVersion >= 6;
  while (this.pos < this.input.length) {
    var ch = this.fullCharCodeAtPos();
    if (isIdentifierChar(ch, astral)) {
      this.pos += ch <= 65535 ? 1 : 2;
    } else if (ch === 92) {
      // "\"
      containsEsc = true;
      word += this.input.slice(chunkStart, this.pos);
      var escStart = this.pos;
      if (this.input.charCodeAt(++this.pos) != 117) // "u"
        this.raise(this.pos, "Expecting Unicode escape sequence \\uXXXX");
      ++this.pos;
      var esc = this.readCodePoint();
      if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral)) this.raise(escStart, "Invalid Unicode escape");
      word += codePointToString(esc);
      chunkStart = this.pos;
    } else {
      break;
    }
    first = false;
  }
  return word + this.input.slice(chunkStart, this.pos);
};

// Read an identifier or keyword token. Will check for reserved
// words when necessary.

pp.readWord = function () {
  var word = this.readWord1();
  var type = tt.name;
  if ((this.options.ecmaVersion >= 6 || !containsEsc) && this.isKeyword(word)) type = keywordTypes[word];
  return this.finishToken(type, word);
};

},{"./identifier":7,"./location":8,"./state":13,"./tokentype":17,"./whitespace":19}],17:[function(_dereq_,module,exports){
"use strict";

var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };

exports.__esModule = true;
// ## Token types

// The assignment of fine-grained, information-carrying type objects
// allows the tokenizer to store the information it has about a
// token in a way that is very cheap for the parser to look up.

// All token type variables start with an underscore, to make them
// easy to recognize.

// The `beforeExpr` property is used to disambiguate between regular
// expressions and divisions. It is set on all token types that can
// be followed by an expression (thus, a slash after them would be a
// regular expression).
//
// `isLoop` marks a keyword as starting a loop, which is important
// to know when parsing a label, in order to allow or disallow
// continue jumps to that label.

var TokenType = exports.TokenType = function TokenType(label) {
  var conf = arguments[1] === undefined ? {} : arguments[1];

  _classCallCheck(this, TokenType);

  this.label = label;
  this.keyword = conf.keyword;
  this.beforeExpr = !!conf.beforeExpr;
  this.startsExpr = !!conf.startsExpr;
  this.isLoop = !!conf.isLoop;
  this.isAssign = !!conf.isAssign;
  this.prefix = !!conf.prefix;
  this.postfix = !!conf.postfix;
  this.binop = conf.binop || null;
  this.updateContext = null;
};

function binop(name, prec) {
  return new TokenType(name, { beforeExpr: true, binop: prec });
}
var beforeExpr = { beforeExpr: true },
    startsExpr = { startsExpr: true };

var types = {
  num: new TokenType("num", startsExpr),
  regexp: new TokenType("regexp", startsExpr),
  string: new TokenType("string", startsExpr),
  name: new TokenType("name", startsExpr),
  eof: new TokenType("eof"),

  // Punctuation token types.
  bracketL: new TokenType("[", { beforeExpr: true, startsExpr: true }),
  bracketR: new TokenType("]"),
  braceL: new TokenType("{", { beforeExpr: true, startsExpr: true }),
  braceR: new TokenType("}"),
  parenL: new TokenType("(", { beforeExpr: true, startsExpr: true }),
  parenR: new TokenType(")"),
  comma: new TokenType(",", beforeExpr),
  semi: new TokenType(";", beforeExpr),
  colon: new TokenType(":", beforeExpr),
  dot: new TokenType("."),
  question: new TokenType("?", beforeExpr),
  arrow: new TokenType("=>", beforeExpr),
  template: new TokenType("template"),
  ellipsis: new TokenType("...", beforeExpr),
  backQuote: new TokenType("`", startsExpr),
  dollarBraceL: new TokenType("${", { beforeExpr: true, startsExpr: true }),

  // Operators. These carry several kinds of properties to help the
  // parser use them properly (the presence of these properties is
  // what categorizes them as operators).
  //
  // `binop`, when present, specifies that this operator is a binary
  // operator, and will refer to its precedence.
  //
  // `prefix` and `postfix` mark the operator as a prefix or postfix
  // unary operator.
  //
  // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
  // binary operators with a very low precedence, that should result
  // in AssignmentExpression nodes.

  eq: new TokenType("=", { beforeExpr: true, isAssign: true }),
  assign: new TokenType("_=", { beforeExpr: true, isAssign: true }),
  incDec: new TokenType("++/--", { prefix: true, postfix: true, startsExpr: true }),
  prefix: new TokenType("prefix", { beforeExpr: true, prefix: true, startsExpr: true }),
  logicalOR: binop("||", 1),
  logicalAND: binop("&&", 2),
  bitwiseOR: binop("|", 3),
  bitwiseXOR: binop("^", 4),
  bitwiseAND: binop("&", 5),
  equality: binop("==/!=", 6),
  relational: binop("</>", 7),
  bitShift: binop("<</>>", 8),
  plusMin: new TokenType("+/-", { beforeExpr: true, binop: 9, prefix: true, startsExpr: true }),
  modulo: binop("%", 10),
  star: binop("*", 10),
  slash: binop("/", 10)
};

exports.types = types;
// Map keyword names to token types.

var keywords = {};

exports.keywords = keywords;
// Succinct definitions of keyword token types
function kw(name) {
  var options = arguments[1] === undefined ? {} : arguments[1];

  options.keyword = name;
  keywords[name] = types["_" + name] = new TokenType(name, options);
}

kw("break");
kw("case", beforeExpr);
kw("catch");
kw("continue");
kw("debugger");
kw("default");
kw("do", { isLoop: true });
kw("else", beforeExpr);
kw("finally");
kw("for", { isLoop: true });
kw("function", startsExpr);
kw("if");
kw("return", beforeExpr);
kw("switch");
kw("throw", beforeExpr);
kw("try");
kw("var");
kw("let");
kw("const");
kw("while", { isLoop: true });
kw("with");
kw("new", { beforeExpr: true, startsExpr: true });
kw("this", startsExpr);
kw("super", startsExpr);
kw("class");
kw("extends", beforeExpr);
kw("export");
kw("import");
kw("yield", { beforeExpr: true, startsExpr: true });
kw("null", startsExpr);
kw("true", startsExpr);
kw("false", startsExpr);
kw("in", { beforeExpr: true, binop: 7 });
kw("instanceof", { beforeExpr: true, binop: 7 });
kw("typeof", { beforeExpr: true, prefix: true, startsExpr: true });
kw("void", { beforeExpr: true, prefix: true, startsExpr: true });
kw("delete", { beforeExpr: true, prefix: true, startsExpr: true });

},{}],18:[function(_dereq_,module,exports){
"use strict";

exports.isArray = isArray;

// Checks if an object has a property.

exports.has = has;
exports.__esModule = true;

function isArray(obj) {
  return Object.prototype.toString.call(obj) === "[object Array]";
}

function has(obj, propName) {
  return Object.prototype.hasOwnProperty.call(obj, propName);
}

},{}],19:[function(_dereq_,module,exports){
"use strict";

exports.isNewLine = isNewLine;
exports.__esModule = true;
// Matches a whole line break (where CRLF is considered a single
// line break). Used to count lines.

var lineBreak = /\r\n?|\n|\u2028|\u2029/;
exports.lineBreak = lineBreak;
var lineBreakG = new RegExp(lineBreak.source, "g");

exports.lineBreakG = lineBreakG;

function isNewLine(code) {
  return code === 10 || code === 13 || code === 8232 || code == 8233;
}

var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;
exports.nonASCIIwhitespace = nonASCIIwhitespace;

},{}]},{},[1])(1)
});
})(null);
(function(module){
'use strict';

var toStr = Object.prototype.toString;

module.exports = function isArguments(value) {
	var str = toStr.call(value);
	var isArgs = str === '[object Arguments]';
	if (!isArgs) {
		isArgs = str !== '[object Array]' &&
			value !== null &&
			typeof value === 'object' &&
			typeof value.length === 'number' &&
			value.length >= 0 &&
			toStr.call(value.callee) === '[object Function]';
	}
	return isArgs;
};

window.isArguments = module.exports;
})({exports: {}});
(function(module){

var hasOwn = Object.prototype.hasOwnProperty;
var toString = Object.prototype.toString;

module.exports = function forEach (obj, fn, ctx) {
    if (toString.call(fn) !== '[object Function]') {
        throw new TypeError('iterator must be a function');
    }
    var l = obj.length;
    if (l === +l) {
        for (var i = 0; i < l; i++) {
            fn.call(ctx, obj[i], i, obj);
        }
    } else {
        for (var k in obj) {
            if (hasOwn.call(obj, k)) {
                fn.call(ctx, obj[k], k, obj);
            }
        }
    }
};


window.forEach = module.exports;
})({exports: {}});
(function(module){
module.exports = Array.isArray || function (arr) {
  return Object.prototype.toString.call(arr) == '[object Array]';
};

window.isArray = module.exports;
})({exports: {}});
(function(require,module){
'use strict';

// modified from https://github.com/es-shims/es5-shim
var has = Object.prototype.hasOwnProperty;
var toStr = Object.prototype.toString;
var slice = Array.prototype.slice;
var isArgs = require('./isArguments');
var hasDontEnumBug = !({ toString: null }).propertyIsEnumerable('toString');
var hasProtoEnumBug = function () {}.propertyIsEnumerable('prototype');
var dontEnums = [
	'toString',
	'toLocaleString',
	'valueOf',
	'hasOwnProperty',
	'isPrototypeOf',
	'propertyIsEnumerable',
	'constructor'
];
var equalsConstructorPrototype = function (o) {
	var ctor = o.constructor;
	return ctor && ctor.prototype === o;
};
var blacklistedKeys = {
	$console: true,
	$frame: true,
	$frameElement: true,
	$frames: true,
	$parent: true,
	$self: true,
	$webkitIndexedDB: true,
	$webkitStorageInfo: true,
	$window: true
};
var hasAutomationEqualityBug = (function () {
	/* global window */
	if (typeof window === 'undefined') { return false; }
	for (var k in window) {
		try {
			if (!blacklistedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
				try {
					equalsConstructorPrototype(window[k]);
				} catch (e) {
					return true;
				}
			}
		} catch (e) {
			return true;
		}
	}
	return false;
}());
var equalsConstructorPrototypeIfNotBuggy = function (o) {
	/* global window */
	if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
		return equalsConstructorPrototype(o);
	}
	try {
		return equalsConstructorPrototype(o);
	} catch (e) {
		return false;
	}
};

var keysShim = function keys(object) {
	var isObject = object !== null && typeof object === 'object';
	var isFunction = toStr.call(object) === '[object Function]';
	var isArguments = isArgs(object);
	var isString = isObject && toStr.call(object) === '[object String]';
	var theKeys = [];

	if (!isObject && !isFunction && !isArguments) {
		throw new TypeError('Object.keys called on a non-object');
	}

	var skipProto = hasProtoEnumBug && isFunction;
	if (isString && object.length > 0 && !has.call(object, 0)) {
		for (var i = 0; i < object.length; ++i) {
			theKeys.push(String(i));
		}
	}

	if (isArguments && object.length > 0) {
		for (var j = 0; j < object.length; ++j) {
			theKeys.push(String(j));
		}
	} else {
		for (var name in object) {
			if (!(skipProto && name === 'prototype') && has.call(object, name)) {
				theKeys.push(String(name));
			}
		}
	}

	if (hasDontEnumBug) {
		var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);

		for (var k = 0; k < dontEnums.length; ++k) {
			if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
				theKeys.push(dontEnums[k]);
			}
		}
	}
	return theKeys;
};

keysShim.shim = function shimObjectKeys() {
	if (Object.keys) {
		var keysWorksWithArguments = (function () {
			// Safari 5.0 bug
			return (Object.keys(arguments) || '').length === 2;
		}(1, 2));
		if (!keysWorksWithArguments) {
			var originalKeys = Object.keys;
			Object.keys = function keys(object) {
				if (isArgs(object)) {
					return originalKeys(slice.call(object));
				} else {
					return originalKeys(object);
				}
			};
		}
	} else {
		Object.keys = keysShim;
	}
	return Object.keys || keysShim;
};

module.exports = keysShim;

window.objectKeys =  module.exports;
})(function(){return isArguments;},{exports: {}});
/*!
 * falafel (c) James Halliday / MIT License
 * https://github.com/substack/node-falafel
 */

(function(require,module){
var parse = require('acorn').parse;
var isArray = require('isarray');
var objectKeys = require('object-keys');
var forEach = require('foreach');

module.exports = function (src, opts, fn) {
    if (typeof opts === 'function') {
        fn = opts;
        opts = {};
    }
    if (src && typeof src === 'object' && src.constructor.name === 'Buffer') {
        src = src.toString();
    }
    else if (src && typeof src === 'object') {
        opts = src;
        src = opts.source;
        delete opts.source;
    }
    src = src === undefined ? opts.source : src;
    if (typeof src !== 'string') src = String(src);
    if (opts.parser) parse = opts.parser.parse;
    var ast = parse(src, opts);
    
    var result = {
        chunks : src.split(''),
        toString : function () { return result.chunks.join('') },
        inspect : function () { return result.toString() }
    };
    var index = 0;
    
    (function walk (node, parent) {
        insertHelpers(node, parent, result.chunks);
        
        forEach(objectKeys(node), function (key) {
            if (key === 'parent') return;
            
            var child = node[key];
            if (isArray(child)) {
                forEach(child, function (c) {
                    if (c && typeof c.type === 'string') {
                        walk(c, node);
                    }
                });
            }
            else if (child && typeof child.type === 'string') {
                walk(child, node);
            }
        });
        fn(node);
    })(ast, undefined);
    
    return result;
};
 
function insertHelpers (node, parent, chunks) {
    node.parent = parent;
    
    node.source = function () {
        return chunks.slice(node.start, node.end).join('');
    };
    
    if (node.update && typeof node.update === 'object') {
        var prev = node.update;
        forEach(objectKeys(prev), function (key) {
            update[key] = prev[key];
        });
        node.update = update;
    }
    else {
        node.update = update;
    }
    
    function update (s) {
        chunks[node.start] = s;
        for (var i = node.start + 1; i < node.end; i++) {
            chunks[i] = '';
        }
    }
}

window.falafel = module.exports;})(function(moduleName){switch(moduleName){case "acorn":
return {parse: acorn.parse};
case "object-keys":
return objectKeys;
case "foreach":
return forEach;
case "isarray":
return isArray;}},{exports: {}});
var inBrowser = typeof window !== 'undefined' && this === window;
var parseAndModify = (inBrowser ? window.falafel : require("falafel"));

(inBrowser ? window : exports).blanket = (function(){
    var linesToAddTracking = [
        "ExpressionStatement",
        "BreakStatement"   ,
        "ContinueStatement" ,
        "VariableDeclaration",
        "ReturnStatement"   ,
        "ThrowStatement"   ,
        "TryStatement"     ,
        "FunctionDeclaration"    ,
        "IfStatement"       ,
        "WhileStatement"    ,
        "DoWhileStatement"   ,
        "ForStatement"   ,
        "ForInStatement"  ,
        "SwitchStatement"  ,
        "WithStatement"
    ],
    linesToAddBrackets = [
        "IfStatement"       ,
        "WhileStatement"    ,
        "DoWhileStatement"     ,
        "ForStatement"   ,
        "ForInStatement"  ,
        "WithStatement"
    ],
    __blanket,
    copynumber = Math.floor(Math.random()*1000),
    coverageInfo = {},options = {
        reporter: null,
        adapter:null,
        filter: null,
        customVariable: null,
        loader: null,
        ignoreScriptError: false,
        existingRequireJS:false,
        autoStart: false,
        timeout: 180,
        ignoreCors: false,
        branchTracking: false,
        sourceURL: false,
        debug:false,
        engineOnly:false,
        testReadyCallback:null,
        commonJS:false,
        instrumentCache:false,
        modulePattern: null,
        ecmaVersion: 5
    };

    if (inBrowser && typeof window.blanket !== 'undefined'){
        __blanket = window.blanket.noConflict();
    }

    _blanket = {
        noConflict: function(){
            if (__blanket){
                return __blanket;
            }
            return _blanket;
        },
        _getCopyNumber: function(){
            //internal method
            //for differentiating between instances
            return copynumber;
        },
        extend: function(obj) {
            //borrowed from underscore
            _blanket._extend(_blanket,obj);
        },
        _extend: function(dest,source){
          if (source) {
            for (var prop in source) {
              if ( dest[prop] instanceof Object && typeof dest[prop] !== "function"){
                _blanket._extend(dest[prop],source[prop]);
              }else{
                  dest[prop] = source[prop];
              }
            }
          }
        },
        getCovVar: function(){
            var opt = _blanket.options("customVariable");
            if (opt){
                if (_blanket.options("debug")) {console.log("BLANKET-Using custom tracking variable:",opt);}
                return inBrowser ? "window."+opt : opt;
            }
            return inBrowser ?   "window._$blanket" : "_$jscoverage";
        },
        options: function(key,value){
            if (typeof key !== "string"){
                _blanket._extend(options,key);
            }else if (typeof value === 'undefined'){
                return options[key];
            }else{
                options[key]=value;
            }
        },
        // instrument the file synchronously
        // `next` is optional callback which will be called
        // with instrumented code when present
        instrumentSync: function(config, next){
            //check instrumented hash table,
            //return instrumented code if available.
            var inFile = config.inputFile,
                inFileName = config.inputFileName;
            //check instrument cache
           if (_blanket.options("instrumentCache") && sessionStorage && sessionStorage.getItem("blanket_instrument_store-"+inFileName)){
                if (_blanket.options("debug")) {console.log("BLANKET-Reading instrumentation from cache: ",inFileName);}
                if (next) {
                    next(sessionStorage.getItem("blanket_instrument_store-"+inFileName));
                } else {
                    return(sessionStorage.getItem("blanket_instrument_store-"+inFileName));
                }
            }else{
                var sourceArray = _blanket._prepareSource(inFile);
                _blanket._trackingArraySetup=[];
                //remove shebang
                inFile = inFile.replace(/^\#\!.*/, "");
                var instrumented =  parseAndModify(inFile,{locations:true,comment:true,ecmaVersion:_blanket.options("ecmaVersion")}, _blanket._addTracking(inFileName));
                instrumented = _blanket._trackingSetup(inFileName,sourceArray)+instrumented;
                if (_blanket.options("sourceURL")){
                    instrumented += "\n//@ sourceURL="+inFileName.replace("http://","");
                }
                if (_blanket.options("debug")) {console.log("BLANKET-Instrumented file: ",inFileName);}
                if (_blanket.options("instrumentCache") && sessionStorage){
                    if (_blanket.options("debug")) {console.log("BLANKET-Saving instrumentation to cache: ",inFileName);}
                    sessionStorage.setItem("blanket_instrument_store-"+inFileName,instrumented);
                }
                if (next) {
                    next(instrumented);
                } else {
                    return(instrumented);
                }
            }
        },
        instrument: function(config, next){
            _blanket.instrumentSync(config, next);
        },
        _trackingArraySetup: [],
        _branchingArraySetup: [],
        _useStrictMode: false,
        _prepareSource: function(source){
            return source.replace(/\\/g,"\\\\").replace(/'/g,"\\'").replace(/(\r\n|\n|\r)/gm,"\n").split('\n');
        },
        _trackingSetup: function(filename,sourceArray){
            var branches = _blanket.options("branchTracking");
            var sourceString = sourceArray.join("',\n'");
            var intro = "";
            var covVar = _blanket.getCovVar();

            if(_blanket._useStrictMode) {
                intro += "'use strict';\n";
            }

            intro += "if (typeof "+covVar+" === 'undefined') "+covVar+" = {};\n";
            if (branches){
                intro += "var _$branchFcn=function(f,l,c,r){ ";
                intro += "if (!!r) { ";
                intro += covVar+"[f].branchData[l][c][0] = "+covVar+"[f].branchData[l][c][0] || [];";
                intro += covVar+"[f].branchData[l][c][0].push(r); }";
                intro += "else { ";
                intro += covVar+"[f].branchData[l][c][1] = "+covVar+"[f].branchData[l][c][1] || [];";
                intro += covVar+"[f].branchData[l][c][1].push(r); }";
                intro += "return r;};\n";
            }
            intro += "if (typeof "+covVar+"['"+filename+"'] === 'undefined'){";

            intro += covVar+"['"+filename+"']=[];\n";
            if (branches){
                intro += covVar+"['"+filename+"'].branchData=[];\n";
            }
            intro += covVar+"['"+filename+"'].source=['"+sourceString+"'];\n";
            //initialize array values
            _blanket._trackingArraySetup.sort(function(a,b){
                return parseInt(a,10) > parseInt(b,10);
            }).forEach(function(item){
                intro += covVar+"['"+filename+"']["+item+"]=0;\n";
            });
            if (branches){
                _blanket._branchingArraySetup.sort(function(a,b){
                    return a.line > b.line;
                }).sort(function(a,b){
                    return a.column > b.column;
                }).forEach(function(item){
                    if (item.file === filename){
                        intro += "if (typeof "+ covVar+"['"+filename+"'].branchData["+item.line+"] === 'undefined'){\n";
                        intro += covVar+"['"+filename+"'].branchData["+item.line+"]=[];\n";
                        intro += "}";
                        intro += covVar+"['"+filename+"'].branchData["+item.line+"]["+item.column+"] = [];\n";
                        intro += covVar+"['"+filename+"'].branchData["+item.line+"]["+item.column+"].consequent = "+JSON.stringify(item.consequent)+";\n";
                        intro += covVar+"['"+filename+"'].branchData["+item.line+"]["+item.column+"].alternate = "+JSON.stringify(item.alternate)+";\n";
                    }
                });
            }
            intro += "}";

            return intro;
        },
        _blockifyIf: function(node){
            if (linesToAddBrackets.indexOf(node.type) > -1){
                var bracketsExistObject = node.consequent || node.body;
                var bracketsExistAlt = node.alternate;
                if( bracketsExistAlt && bracketsExistAlt.type !== "BlockStatement") {
                    bracketsExistAlt.update("{\n"+bracketsExistAlt.source()+"}\n");
                }
                if( bracketsExistObject && bracketsExistObject.type !== "BlockStatement") {
                    bracketsExistObject.update("{\n"+bracketsExistObject.source()+"}\n");
                }
            }
        },
        _trackBranch: function(node,filename){
            //recursive on consequent and alternative
            var line = node.loc.start.line;
            var col = node.loc.start.column;

            _blanket._branchingArraySetup.push({
                line: line,
                column: col,
                file:filename,
                consequent: node.consequent.loc,
                alternate: node.alternate.loc
            });

            var updated = "_$branchFcn"+
                          "('"+filename+"',"+line+","+col+","+node.test.source()+
                          ")?"+node.consequent.source()+":"+node.alternate.source();
            node.update(updated);
        },
        _addTracking: function (filename) {
            //falafel doesn't take a file name
            //so we include the filename in a closure
            //and return the function to falafel
            var covVar = _blanket.getCovVar();

            return function(node){
                _blanket._blockifyIf(node);

                if (linesToAddTracking.indexOf(node.type) > -1 && node.parent.type !== "LabeledStatement") {
                    _blanket._checkDefs(node,filename);
                    if (node.type === "VariableDeclaration" &&
                        (node.parent.type === "ForStatement" || node.parent.type === "ForInStatement")){
                        return;
                    }
                    if (node.loc && node.loc.start){
                        node.update(covVar+"['"+filename+"']["+node.loc.start.line+"]++;\n"+node.source());
                        _blanket._trackingArraySetup.push(node.loc.start.line);
                    }else{
                        //I don't think we can handle a node with no location
                        throw new Error("The instrumenter encountered a node with no location: "+Object.keys(node));
                    }
                }else if (_blanket.options("branchTracking") && node.type === "ConditionalExpression"){
                    _blanket._trackBranch(node,filename);
                }else if (node.type === "Literal" && node.value === "use strict" && node.parent && node.parent.type === "ExpressionStatement" && node.parent.parent && node.parent.parent.type === "Program"){
                    _blanket._useStrictMode = true;
                }
            };
        },
        _checkDefs: function(node,filename){
            // Make sure developers don't redefine window. if they do, inform them it is wrong.
            if (inBrowser){
                if (node.type === "VariableDeclaration" && node.declarations) {
                    node.declarations.forEach(function(declaration) {
                        if (declaration.id.name === "window") {
                            throw new Error("Instrumentation error, you cannot redefine the 'window' variable in  " + filename + ":" + node.loc.start.line);
                        }
                    });
                }
                if (node.type === "FunctionDeclaration" && node.params) {
                    node.params.forEach(function(param) {
                        if (param.name === "window") {
                            throw new Error("Instrumentation error, you cannot redefine the 'window' variable in  " + filename + ":" + node.loc.start.line);
                        }
                    });
                }
                //Make sure developers don't redefine the coverage variable
                if (node.type === "ExpressionStatement" &&
                    node.expression && node.expression.left &&
                    node.expression.left.object && node.expression.left.property &&
                    node.expression.left.object.name +
                        "." + node.expression.left.property.name === _blanket.getCovVar()) {
                    throw new Error("Instrumentation error, you cannot redefine the coverage variable in  " + filename + ":" + node.loc.start.line);
                }
            }else{
                //Make sure developers don't redefine the coverage variable in node
                if (node.type === "ExpressionStatement" &&
                    node.expression && node.expression.left &&
                    !node.expression.left.object && !node.expression.left.property &&
                    node.expression.left.name === _blanket.getCovVar()) {
                    throw new Error("Instrumentation error, you cannot redefine the coverage variable in  " + filename + ":" + node.loc.start.line);
                }
            }
        },
        setupCoverage: function(){
            coverageInfo.instrumentation = "blanket";
            coverageInfo.stats = {
                "suites": 0,
                "tests": 0,
                "passes": 0,
                "pending": 0,
                "failures": 0,
                "start": new Date()
            };
        },
        _checkIfSetup: function(){
            if (!coverageInfo.stats){
                throw new Error("You must call blanket.setupCoverage() first.");
            }
        },
        onTestStart: function(){
            if (_blanket.options("debug")) {console.log("BLANKET-Test event started");}
            this._checkIfSetup();
            coverageInfo.stats.tests++;
            coverageInfo.stats.pending++;
        },
        onTestDone: function(total,passed){
            this._checkIfSetup();
            if(passed === total){
                coverageInfo.stats.passes++;
            }else{
                coverageInfo.stats.failures++;
            }
            coverageInfo.stats.pending--;
        },
        onModuleStart: function(){
            this._checkIfSetup();
            coverageInfo.stats.suites++;
        },
        onTestsDone: function(){
            if (_blanket.options("debug")) {console.log("BLANKET-Test event done");}
            this._checkIfSetup();
            coverageInfo.stats.end = new Date();

            if (inBrowser){
                this.report(coverageInfo);
            }else{
                if (!_blanket.options("branchTracking")){
                    delete (inBrowser ? window : global)[_blanket.getCovVar()].branchFcn;
                }
                this.options("reporter").call(this,coverageInfo);
            }
        }
    };
    return _blanket;
})();

(function(_blanket){
    var oldOptions = _blanket.options;
_blanket.extend({
    outstandingRequireFiles:[],
    options: function(key,value){
        var newVal={};

        if (typeof key !== "string"){
            //key is key/value map
            oldOptions(key);
            newVal = key;
        }else if (typeof value === 'undefined'){
            //accessor
            return oldOptions(key);
        }else{
            //setter
            oldOptions(key,value);
            newVal[key] = value;
        }

        if (newVal.adapter){
            _blanket._loadFile(newVal.adapter);
        }
        if (newVal.loader){
            _blanket._loadFile(newVal.loader);
        }
    },
    requiringFile: function(filename,done){
        if (typeof filename === "undefined"){
            _blanket.outstandingRequireFiles=[];
        }else if (typeof done === "undefined"){
            _blanket.outstandingRequireFiles.push(filename);
        }else{
            _blanket.outstandingRequireFiles.splice(_blanket.outstandingRequireFiles.indexOf(filename),1);
        }
    },
    requireFilesLoaded: function(){
        return _blanket.outstandingRequireFiles.length === 0;
    },
    showManualLoader: function(){
        if (document.getElementById("blanketLoaderDialog")){
            return;
        }
        //copied from http://blog.avtex.com/2012/01/26/cross-browser-css-only-modal-box/
        var loader = "<div class='blanketDialogOverlay'>";
            loader += "&nbsp;</div>";
            loader += "<div class='blanketDialogVerticalOffset'>";
            loader += "<div class='blanketDialogBox'>";
            loader += "<b>Error:</b> Blanket.js encountered a cross origin request error while instrumenting the source files.  ";
            loader += "<br><br>This is likely caused by the source files being referenced locally (using the file:// protocol). ";
            loader += "<br><br>Some solutions include <a href='http://askubuntu.com/questions/160245/making-google-chrome-option-allow-file-access-from-files-permanent' target='_blank'>starting Chrome with special flags</a>, <a target='_blank' href='https://github.com/remy/servedir'>running a server locally</a>, or using a browser without these CORS restrictions (Safari).";
            loader += "<br>";
            if (typeof FileReader !== "undefined"){
                loader += "<br>Or, try the experimental loader.  When prompted, simply click on the directory containing all the source files you want covered.";
                loader += "<a href='javascript:document.getElementById(\"fileInput\").click();'>Start Loader</a>";
                loader += "<input type='file' type='application/x-javascript' accept='application/x-javascript' webkitdirectory id='fileInput' multiple onchange='window.blanket.manualFileLoader(this.files)' style='visibility:hidden;position:absolute;top:-50;left:-50'/>";
            }
            loader += "<br><span style='float:right;cursor:pointer;'  onclick=document.getElementById('blanketLoaderDialog').style.display='none';>Close</span>";
            loader += "<div style='clear:both'></div>";
            loader += "</div></div>";

        var css = ".blanketDialogWrapper {";
            css += "display:block;";
            css += "position:fixed;";
            css += "z-index:40001; }";

            css += ".blanketDialogOverlay {";
            css += "position:fixed;";
            css += "width:100%;";
            css += "height:100%;";
            css += "background-color:black;";
            css += "opacity:.5; ";
            css += "-ms-filter:'progid:DXImageTransform.Microsoft.Alpha(Opacity=50)'; ";
            css += "filter:alpha(opacity=50); ";
            css += "z-index:40001; }";

            css += ".blanketDialogVerticalOffset { ";
            css += "position:fixed;";
            css += "top:30%;";
            css += "width:100%;";
            css += "z-index:40002; }";

            css += ".blanketDialogBox { ";
            css += "width:405px; ";
            css += "position:relative;";
            css += "margin:0 auto;";
            css += "background-color:white;";
            css += "padding:10px;";
            css += "border:1px solid black; }";

        var dom = document.createElement("style");
        dom.innerHTML = css;
        document.head.appendChild(dom);

        var div = document.createElement("div");
        div.id = "blanketLoaderDialog";
        div.className = "blanketDialogWrapper";
        div.innerHTML = loader;
        document.body.insertBefore(div,document.body.firstChild);

    },
    manualFileLoader: function(files){
        var toArray =Array.prototype.slice;
        files = toArray.call(files).filter(function(item){
            return item.type !== "";
        });
        var sessionLength = files.length-1;
        var sessionIndx=0;
        var sessionArray = {};
        if (sessionStorage["blanketSessionLoader"]){
            sessionArray = JSON.parse(sessionStorage["blanketSessionLoader"]);
        }


        var fileLoader = function(event){
            var fileContent = event.currentTarget.result;
            var file = files[sessionIndx];
            var filename = file.webkitRelativePath && file.webkitRelativePath !== '' ? file.webkitRelativePath : file.name;
            sessionArray[filename] = fileContent;
            sessionIndx++;
            if (sessionIndx === sessionLength){
                sessionStorage.setItem("blanketSessionLoader", JSON.stringify(sessionArray));
                document.location.reload();
            }else{
                readFile(files[sessionIndx]);
            }
        };
        function readFile(file){
            var reader = new FileReader();
            reader.onload = fileLoader;
            reader.readAsText(file);
        }
        readFile(files[sessionIndx]);
    },
    _loadFile: function(path){
        if (typeof path !== "undefined"){
            var request = new XMLHttpRequest();
            request.open('GET', path, false);
            request.send();
            _blanket._addScript(request.responseText);
        }
    },
    _addScript: function(data){
        var script = document.createElement("script");
        script.type = "text/javascript";
        script.text = data;
        (document.body || document.getElementsByTagName('head')[0]).appendChild(script);
    },
    hasAdapter: function(callback){
        return _blanket.options("adapter") !== null;
    },
    report: function(coverage_data){
        if (!document.getElementById("blanketLoaderDialog")){
            //all found, clear it
            _blanket.blanketSession = null;
        }
        coverage_data.files = window._$blanket;
        var require = blanket.options("commonJS") ? blanket._commonjs.require : window.require;

        // Check if we have any covered files that requires reporting
        // otherwise just exit gracefully.
        if (!coverage_data.files || !Object.keys(coverage_data.files).length) {
            if (_blanket.options("debug")) {console.log("BLANKET-Reporting No files were instrumented.");}
            return;
        }

        if (typeof coverage_data.files.branchFcn !== "undefined"){
            delete coverage_data.files.branchFcn;
        }
        if (typeof _blanket.options("reporter") === "string"){
            _blanket._loadFile(_blanket.options("reporter"));
            _blanket.customReporter(coverage_data,_blanket.options("reporter_options"));
        }else if (typeof _blanket.options("reporter") === "function"){
            _blanket.options("reporter")(coverage_data,_blanket.options("reporter_options"));
        }else if (typeof _blanket.defaultReporter === 'function'){
            _blanket.defaultReporter(coverage_data,_blanket.options("reporter_options"));
        }else{
            throw new Error("no reporter defined.");
        }
    },
    _bindStartTestRunner: function(bindEvent,startEvent){
        if (bindEvent){
            bindEvent(startEvent);
        }else{
            if (document.readyState === "complete") {
                startEvent();
            } else {
                window.addEventListener("load",startEvent,false);
            }
        }
    },
    _loadSourceFiles: function(callback){
        var require = blanket.options("commonJS") ? blanket._commonjs.require : window.require;
        function copy(o){
          var _copy = Object.create( Object.getPrototypeOf(o) );
          var propNames = Object.getOwnPropertyNames(o);

          propNames.forEach(function(name){
            var desc = Object.getOwnPropertyDescriptor(o, name);
            Object.defineProperty(_copy, name, desc);
          });

          return _copy;
        }
        if (_blanket.options("debug")) {console.log("BLANKET-Collecting page scripts");}
        var scripts = _blanket.utils.collectPageScripts();
        //_blanket.options("filter",scripts);
        if (scripts.length === 0){
            callback();
        }else{

            //check session state
            if (sessionStorage["blanketSessionLoader"]){
                _blanket.blanketSession = JSON.parse(sessionStorage["blanketSessionLoader"]);
            }
            
            scripts.forEach(function(file,indx){
                _blanket.utils.cache[file]={
                    loaded:false
                };
            });
            
            var currScript=-1;
            _blanket.utils.loadAll(function(test){
                if (test){
                  return typeof scripts[currScript+1] !== 'undefined';
                }
                currScript++;
                if (currScript >= scripts.length){
                  return null;
                }
                return scripts[currScript];
            },callback);
        }
    },
    beforeStartTestRunner: function(opts){
        opts = opts || {};
        opts.checkRequirejs = typeof opts.checkRequirejs === "undefined" ? true : opts.checkRequirejs;
        opts.callback = opts.callback || function() {  };
        opts.coverage = typeof opts.coverage === "undefined" ? true : opts.coverage;
        if (opts.coverage) {
            _blanket._bindStartTestRunner(opts.bindEvent,
            function(){
                _blanket._loadSourceFiles(function() {

                    var allLoaded = function(){
                        return opts.condition ? opts.condition() : _blanket.requireFilesLoaded();
                    };
                    var check = function() {
                        if (allLoaded()) {
                            if (_blanket.options("debug")) {console.log("BLANKET-All files loaded, init start test runner callback.");}
                            var cb = _blanket.options("testReadyCallback");

                            if (cb){
                                if (typeof cb === "function"){
                                    cb(opts.callback);
                                }else if (typeof cb === "string"){
                                    _blanket._addScript(cb);
                                    opts.callback();
                                }
                            }else{
                                opts.callback();
                            }
                        } else {
                            setTimeout(check, 13);
                        }
                    };
                    check();
                });
            });
        }else{
            opts.callback();
        }
    },
    utils: {
        qualifyURL: function (url) {
            //http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
            var a = document.createElement('a');
            a.href = url;
            return a.href;
        }
    }
});

})(blanket);

blanket.defaultReporter = function(coverage){
    var cssSytle = "#blanket-main {margin:2px;background:#EEE;color:#333;clear:both;font-family:'Helvetica Neue Light', 'HelveticaNeue-Light', 'Helvetica Neue', Calibri, Helvetica, Arial, sans-serif; font-size:17px;} #blanket-main a {color:#333;text-decoration:none;}  #blanket-main a:hover {text-decoration:underline;} .blanket {margin:0;padding:5px;clear:both;border-bottom: 1px solid #FFFFFF;} .bl-error {color:red;}.bl-success {color:#5E7D00;} .bl-file{width:auto;} .bl-cl{float:left;} .blanket div.rs {margin-left:50px; width:150px; float:right} .bl-nb {padding-right:10px;} #blanket-main a.bl-logo {color: #EB1764;cursor: pointer;font-weight: bold;text-decoration: none} .bl-source{ overflow-x:scroll; background-color: #FFFFFF; border: 1px solid #CBCBCB; color: #363636; margin: 25px 20px; width: 80%;} .bl-source div{white-space: pre;font-family: monospace;} .bl-source > div > span:first-child{background-color: #EAEAEA;color: #949494;display: inline-block;padding: 0 10px;text-align: center;width: 30px;} .bl-source .hit{background-color:#c3e6c7} .bl-source .miss{background-color:#e6c3c7} .bl-source span.branchWarning{color:#000;background-color:yellow;} .bl-source span.branchOkay{color:#000;background-color:transparent;}",
        successRate = 60,
        head = document.head,
        fileNumber = 0,
        body = document.body,
        headerContent,
        hasBranchTracking = Object.keys(coverage.files).some(function(elem){
          return typeof coverage.files[elem].branchData !== 'undefined';
        }),
        bodyContent = "<div id='blanket-main'><div class='blanket bl-title'><div class='bl-cl bl-file'><a href='http://alex-seville.github.com/blanket/' target='_blank' class='bl-logo'>Blanket.js</a> results</div><div class='bl-cl rs'>Coverage (%)</div><div class='bl-cl rs'>Covered/Total Smts.</div>"+(hasBranchTracking ? "<div class='bl-cl rs'>Covered/Total Branches</div>":"")+"<div style='clear:both;'></div></div>",
        fileTemplate = "<div class='blanket {{statusclass}}'><div class='bl-cl bl-file'><span class='bl-nb'>{{fileNumber}}.</span><a href='javascript:blanket_toggleSource(\"file-{{fileNumber}}\")'>{{file}}</a></div><div class='bl-cl rs'>{{percentage}} %</div><div class='bl-cl rs'>{{numberCovered}}/{{totalSmts}}</div>"+( hasBranchTracking ? "<div class='bl-cl rs'>{{passedBranches}}/{{totalBranches}}</div>" : "" )+"<div id='file-{{fileNumber}}' class='bl-source' style='display:none;'>{{source}}</div><div style='clear:both;'></div></div>";
        grandTotalTemplate = "<div class='blanket grand-total {{statusclass}}'><div class='bl-cl'>{{rowTitle}}</div><div class='bl-cl rs'>{{percentage}} %</div><div class='bl-cl rs'>{{numberCovered}}/{{totalSmts}}</div>"+( hasBranchTracking ? "<div class='bl-cl rs'>{{passedBranches}}/{{totalBranches}}</div>" : "" ) + "<div style='clear:both;'></div></div>";

    function blanket_toggleSource(id) {
        var element = document.getElementById(id);
        if(element.style.display === 'block') {
            element.style.display = 'none';
        } else {
            element.style.display = 'block';
        }
    }


    var script = document.createElement("script");
    script.type = "text/javascript";
    script.text = blanket_toggleSource.toString().replace('function ' + blanket_toggleSource.name, 'function blanket_toggleSource');
    body.appendChild(script);

    var percentage = function(number, total) {
        return (Math.round(((number/total) * 100)*100)/100);
    };

    var appendTag = function (type, el, str) {
        var dom = document.createElement(type);
        dom.innerHTML = str;
        el.appendChild(dom);
    };

    function escapeInvalidXmlChars(str) {
        return str.replace(/\&/g, "&amp;")
            .replace(/</g, "&lt;")
            .replace(/\>/g, "&gt;")
            .replace(/\"/g, "&quot;")
            .replace(/\'/g, "&apos;")
            .replace(/`/g, "&grave;")
            .replace(/[$]/g, "&dollar;")
            .replace(/&/g, "&amp;");
    }

    function isBranchFollowed(data,bool){
        var mode = bool ? 0 : 1;
        if (typeof data === 'undefined' ||
            typeof data === null ||
            typeof data[mode] === 'undefined'){
            return false;
        }
        return data[mode].length > 0;
    }

    var branchStack = [];

    function branchReport(colsIndex,src,cols,offset,lineNum){
      var newsrc="";
       var postfix="";
      if (branchStack.length > 0){
        newsrc += "<span class='" + (isBranchFollowed(branchStack[0][1],branchStack[0][1].consequent === branchStack[0][0]) ? 'branchOkay' : 'branchWarning') + "'>";
        if (branchStack[0][0].end.line === lineNum){
          newsrc += escapeInvalidXmlChars(src.slice(0,branchStack[0][0].end.column)) + "</span>";
          src = src.slice(branchStack[0][0].end.column);
          branchStack.shift();
          if (branchStack.length > 0){
            newsrc += "<span class='" + (isBranchFollowed(branchStack[0][1],false) ? 'branchOkay' : 'branchWarning') + "'>";
            if (branchStack[0][0].end.line === lineNum){
              newsrc += escapeInvalidXmlChars(src.slice(0,branchStack[0][0].end.column)) + "</span>";
              src = src.slice(branchStack[0][0].end.column);
              branchStack.shift();
              if (!cols){
                return {src: newsrc + escapeInvalidXmlChars(src) ,cols:cols};
              }
            }
            else if (!cols){
              return {src: newsrc + escapeInvalidXmlChars(src) + "</span>",cols:cols};
            }
            else{
              postfix = "</span>";
            }
          }else if (!cols){
            return {src: newsrc + escapeInvalidXmlChars(src) ,cols:cols};
          }
        }else if(!cols){
          return {src: newsrc + escapeInvalidXmlChars(src) + "</span>",cols:cols};
        }else{
          postfix = "</span>";
        }
      }
      var thisline = cols[colsIndex];
      //consequent
      
      var cons = thisline.consequent;
      if (cons.start.line > lineNum){
        branchStack.unshift([thisline.alternate,thisline]);
        branchStack.unshift([cons,thisline]);
        src = escapeInvalidXmlChars(src);
      }else{
        var style = "<span class='" + (isBranchFollowed(thisline,true) ? 'branchOkay' : 'branchWarning') + "'>";
        newsrc += escapeInvalidXmlChars(src.slice(0,cons.start.column-offset)) + style;
        
        if (cols.length > colsIndex+1 &&
          cols[colsIndex+1].consequent.start.line === lineNum &&
          cols[colsIndex+1].consequent.start.column-offset < cols[colsIndex].consequent.end.column-offset)
        {
          var res = branchReport(colsIndex+1,src.slice(cons.start.column-offset,cons.end.column-offset),cols,cons.start.column-offset,lineNum);
          newsrc += res.src;
          cols = res.cols;
          cols[colsIndex+1] = cols[colsIndex+2];
          cols.length--;
        }else{
          newsrc += escapeInvalidXmlChars(src.slice(cons.start.column-offset,cons.end.column-offset));
        }
        newsrc += "</span>";

        var alt = thisline.alternate;
        if (alt.start.line > lineNum){
          newsrc += escapeInvalidXmlChars(src.slice(cons.end.column-offset));
          branchStack.unshift([alt,thisline]);
        }else{
          newsrc += escapeInvalidXmlChars(src.slice(cons.end.column-offset,alt.start.column-offset));
          style = "<span class='" + (isBranchFollowed(thisline,false) ? 'branchOkay' : 'branchWarning') + "'>";
          newsrc +=  style;
          if (cols.length > colsIndex+1 &&
            cols[colsIndex+1].consequent.start.line === lineNum &&
            cols[colsIndex+1].consequent.start.column-offset < cols[colsIndex].alternate.end.column-offset)
          {
            var res2 = branchReport(colsIndex+1,src.slice(alt.start.column-offset,alt.end.column-offset),cols,alt.start.column-offset,lineNum);
            newsrc += res2.src;
            cols = res2.cols;
            cols[colsIndex+1] = cols[colsIndex+2];
            cols.length--;
          }else{
            newsrc += escapeInvalidXmlChars(src.slice(alt.start.column-offset,alt.end.column-offset));
          }
          newsrc += "</span>";
          newsrc += escapeInvalidXmlChars(src.slice(alt.end.column-offset));
          src = newsrc;
        }
      }
      return {src:src+postfix, cols:cols};
    }

    var isUndefined =  function(item){
            return typeof item !== 'undefined';
      };

    var files = coverage.files;
    var totals = {
      totalSmts: 0,
      numberOfFilesCovered: 0,
      passedBranches: 0,
      totalBranches: 0,
      moduleTotalStatements : {},
      moduleTotalCoveredStatements : {},
      moduleTotalBranches : {},
      moduleTotalCoveredBranches : {}
    };

    // check if a data-cover-modulepattern was provided for per-module coverage reporting
    var modulePattern = _blanket.options("modulePattern");
    var modulePatternRegex = ( modulePattern ? new RegExp(modulePattern) : null );

    for(var file in files)
    {
        if (!files.hasOwnProperty(file)) {
            continue;
        }

        fileNumber++;

        var statsForFile = files[file],
            totalSmts = 0,
            numberOfFilesCovered = 0,
            code = [],
            i;
        

        var end = [];
        for(i = 0; i < statsForFile.source.length; i +=1){
            var src = statsForFile.source[i];
            
            if (branchStack.length > 0 ||
                typeof statsForFile.branchData !== 'undefined')
            {
                if (typeof statsForFile.branchData[i+1] !== 'undefined')
                {
                  var cols = statsForFile.branchData[i+1].filter(isUndefined);
                  var colsIndex=0;
                  
                    
                  src = branchReport(colsIndex,src,cols,0,i+1).src;
                  
                }else if (branchStack.length){
                  src = branchReport(0,src,null,0,i+1).src;
                }else{
                  src = escapeInvalidXmlChars(src);
                }
              }else{
                src = escapeInvalidXmlChars(src);
              }
              var lineClass="";
              if(statsForFile[i+1]) {
                numberOfFilesCovered += 1;
                totalSmts += 1;
                lineClass = 'hit';
              }else{
                if(statsForFile[i+1] === 0){
                    totalSmts++;
                    lineClass = 'miss';
                }
              }
              code[i + 1] = "<div class='"+lineClass+"'><span class=''>"+(i + 1)+"</span>"+src+"</div>";
        }
        totals.totalSmts += totalSmts;
        totals.numberOfFilesCovered += numberOfFilesCovered;
        var totalBranches=0;
        var passedBranches=0;
        if (typeof statsForFile.branchData !== 'undefined'){
          for(var j=0;j<statsForFile.branchData.length;j++){
            if (typeof statsForFile.branchData[j] !== 'undefined'){
              for(var k=0;k<statsForFile.branchData[j].length;k++){
                if (typeof statsForFile.branchData[j][k] !== 'undefined'){
                  totalBranches++;
                  if (typeof statsForFile.branchData[j][k][0] !== 'undefined' &&
                    statsForFile.branchData[j][k][0].length > 0 &&
                    typeof statsForFile.branchData[j][k][1] !== 'undefined' &&
                    statsForFile.branchData[j][k][1].length > 0){
                    passedBranches++;
                  }
                }
              }
            }
          }
        }
        totals.passedBranches += passedBranches;
        totals.totalBranches += totalBranches;

        // if "data-cover-modulepattern" was provided, 
        // track totals per module name as well as globally
        if (modulePatternRegex) {
            var moduleName = file.match(modulePatternRegex)[1];

            if(!totals.moduleTotalStatements.hasOwnProperty(moduleName)) {
                totals.moduleTotalStatements[moduleName] = 0;
                totals.moduleTotalCoveredStatements[moduleName] = 0;
            }

            totals.moduleTotalStatements[moduleName] += totalSmts;
            totals.moduleTotalCoveredStatements[moduleName] += numberOfFilesCovered;

            if(!totals.moduleTotalBranches.hasOwnProperty(moduleName)) {
                totals.moduleTotalBranches[moduleName] = 0;
                totals.moduleTotalCoveredBranches[moduleName] = 0;
            }

            totals.moduleTotalBranches[moduleName] += totalBranches;
            totals.moduleTotalCoveredBranches[moduleName] += passedBranches;
        }

        var result = percentage(numberOfFilesCovered, totalSmts);

        var output = fileTemplate.replace("{{file}}", file)
                                 .replace("{{percentage}}",result)
                                 .replace("{{numberCovered}}", numberOfFilesCovered)
                                 .replace(/\{\{fileNumber\}\}/g, fileNumber)
                                 .replace("{{totalSmts}}", totalSmts)
                                 .replace("{{totalBranches}}", totalBranches)
                                 .replace("{{passedBranches}}", passedBranches)
                                 .replace("{{source}}", code.join(" "));
        if(result < successRate)
        {
            output = output.replace("{{statusclass}}", "bl-error");
        } else {
            output = output.replace("{{statusclass}}", "bl-success");
        }
        bodyContent += output;
    }

    // create temporary function for use by the global totals reporter, 
    // as well as the per-module totals reporter
    var createAggregateTotal = function(numSt, numCov, numBranch, numCovBr, moduleName) {

        var totalPercent = percentage(numCov, numSt);
        var statusClass = totalPercent < successRate ? "bl-error" : "bl-success";
        var rowTitle = ( moduleName ? "Total for module: " + moduleName : "Global total" );
        var totalsOutput = grandTotalTemplate.replace("{{rowTitle}}", rowTitle)
            .replace("{{percentage}}", totalPercent)
            .replace("{{numberCovered}}", numCov)
            .replace("{{totalSmts}}", numSt)
            .replace("{{passedBranches}}", numCovBr)
            .replace("{{totalBranches}}", numBranch)
            .replace("{{statusclass}}", statusClass);

        bodyContent += totalsOutput;
    };

    // if "data-cover-modulepattern" was provided, 
    // output the per-module totals alongside the global totals    
    if (modulePatternRegex) {
        for (var thisModuleName in totals.moduleTotalStatements) {
            if (totals.moduleTotalStatements.hasOwnProperty(thisModuleName)) {

                var moduleTotalSt = totals.moduleTotalStatements[thisModuleName];
                var moduleTotalCovSt = totals.moduleTotalCoveredStatements[thisModuleName];

                var moduleTotalBr = totals.moduleTotalBranches[thisModuleName];
                var moduleTotalCovBr = totals.moduleTotalCoveredBranches[thisModuleName];

                createAggregateTotal(moduleTotalSt, moduleTotalCovSt, moduleTotalBr, moduleTotalCovBr, thisModuleName);
            }
        }
    }

    createAggregateTotal(totals.totalSmts, totals.numberOfFilesCovered, totals.totalBranches, totals.passedBranches, null);
    bodyContent += "</div>"; //closing main


    appendTag('style', head, cssSytle);
    //appendStyle(body, headerContent);
    if (document.getElementById("blanket-main")){
        document.getElementById("blanket-main").innerHTML=
            bodyContent.slice(23,-6);
    }else{
        appendTag('div', body, bodyContent);
    }
    //appendHtml(body, '</div>');
};

(function(){
    var newOptions={};
    //http://stackoverflow.com/a/2954896
    var toArray =Array.prototype.slice;
    var scripts = toArray.call(document.scripts);
    toArray.call(scripts[scripts.length - 1].attributes)
                    .forEach(function(es){
                        if(es.nodeName === "data-cover-only"){
                            newOptions.filter = es.nodeValue;
                        }
                        if(es.nodeName === "data-cover-never"){
                            newOptions.antifilter = es.nodeValue;
                        }
                        if(es.nodeName === "data-cover-reporter"){
                            newOptions.reporter = es.nodeValue;
                        }
                        if (es.nodeName === "data-cover-adapter"){
                            newOptions.adapter = es.nodeValue;
                        }
                        if (es.nodeName === "data-cover-loader"){
                            newOptions.loader = es.nodeValue;
                        }
                        if (es.nodeName === "data-cover-timeout"){
                            newOptions.timeout = es.nodeValue;
                        }
                        if (es.nodeName === "data-cover-modulepattern") {
                            newOptions.modulePattern = es.nodeValue;
                        }
                        if (es.nodeName === "data-cover-reporter-options"){
                            try{
                                newOptions.reporter_options = JSON.parse(es.nodeValue);
                            }catch(e){
                                if (blanket.options("debug")){
                                    throw new Error("Invalid reporter options.  Must be a valid stringified JSON object.");
                                }
                            }
                        }
                        if (es.nodeName === "data-cover-testReadyCallback"){
                            newOptions.testReadyCallback = es.nodeValue;
                        }
                        if (es.nodeName === "data-cover-customVariable"){
                            newOptions.customVariable = es.nodeValue;
                        }
                        if (es.nodeName === "data-cover-flags"){
                            var flags = " "+es.nodeValue+" ";
                            if (flags.indexOf(" ignoreError ") > -1){
                                newOptions.ignoreScriptError = true;
                            }
                            if (flags.indexOf(" autoStart ") > -1){
                                newOptions.autoStart = true;
                            }
                            if (flags.indexOf(" ignoreCors ") > -1){
                                newOptions.ignoreCors = true;
                            }
                            if (flags.indexOf(" branchTracking ") > -1){
                                newOptions.branchTracking = true;
                            }
                            if (flags.indexOf(" sourceURL ") > -1){
                                newOptions.sourceURL = true;
                            }
                            if (flags.indexOf(" debug ") > -1){
                                newOptions.debug = true;
                            }
                            if (flags.indexOf(" engineOnly ") > -1){
                                newOptions.engineOnly = true;
                            }
                            if (flags.indexOf(" commonJS ") > -1){
                                newOptions.commonJS = true;
                            }
                             if (flags.indexOf(" instrumentCache ") > -1){
                                newOptions.instrumentCache = true;
                            }
                        }
                    });
    blanket.options(newOptions);

    if (typeof requirejs !== 'undefined'){
        blanket.options("existingRequireJS",true);
    }
    /* setup requirejs loader, if needed */
    
    if (blanket.options("commonJS")){
        blanket._commonjs = {};
    }
})();
(function(_blanket){
_blanket.extend({
    utils: {
        normalizeBackslashes: function(str) {
            return str.replace(/\\/g, '/');
        },
        matchPatternAttribute: function(filename,pattern){
            if (typeof pattern === 'string'){
                if (pattern.indexOf("[") === 0){
                    //treat as array
                    var pattenArr = pattern.slice(1,pattern.length-1).split(",");
                    return pattenArr.some(function(elem){
                        return _blanket.utils.matchPatternAttribute(filename,_blanket.utils.normalizeBackslashes(elem.slice(1,-1)));
                        //return filename.indexOf(_blanket.utils.normalizeBackslashes(elem.slice(1,-1))) > -1;
                    });
                }else if ( pattern.indexOf("//") === 0){
                    var ex = pattern.slice(2,pattern.lastIndexOf('/'));
                    var mods = pattern.slice(pattern.lastIndexOf('/')+1);
                    var regex = new RegExp(ex,mods);
                    return regex.test(filename);
                }else if (pattern.indexOf("#") === 0){
                    return window[pattern.slice(1)].call(window,filename);
                }else{
                    return filename.indexOf(_blanket.utils.normalizeBackslashes(pattern)) > -1;
                }
            }else if ( pattern instanceof Array ){
                return pattern.some(function(elem){
                    return _blanket.utils.matchPatternAttribute(filename,elem);
                });
            }else if (pattern instanceof RegExp){
                return pattern.test(filename);
            }else if (typeof pattern === "function"){
                return pattern.call(window,filename);
            }
        },
        blanketEval: function(data){
            _blanket._addScript(data);
        },
        collectPageScripts: function(){
            var toArray = Array.prototype.slice;
            var scripts = toArray.call(document.scripts);
            var selectedScripts=[],scriptNames=[];
            var filter = _blanket.options("filter");
            if(filter != null){
                //global filter in place, data-cover-only
                var antimatch = _blanket.options("antifilter");
                selectedScripts = toArray.call(document.scripts)
                                .filter(function(s){
                                    return toArray.call(s.attributes).filter(function(sn){
                                        return sn.nodeName === "src" && _blanket.utils.matchPatternAttribute(sn.nodeValue,filter) &&
                                            (typeof antimatch === "undefined" || !_blanket.utils.matchPatternAttribute(sn.nodeValue,antimatch));
                                    }).length === 1;
                                });
            }else{
                selectedScripts = toArray.call(document.querySelectorAll("script[data-cover]"));
            }
            scriptNames = selectedScripts.map(function(s){
                                    return _blanket.utils.qualifyURL(
                                        toArray.call(s.attributes).filter(
                                            function(sn){
                                                return sn.nodeName === "src";
                                            })[0].nodeValue);
                                    });
            if (!filter){
                _blanket.options("filter","['"+scriptNames.join("','")+"']");
            }
            return scriptNames;
        },
        loadAll: function(nextScript,cb,preprocessor){
            /**
             * load dependencies
             * @param {nextScript} factory for priority level
             * @param {cb} the done callback
             */
            var currScript=nextScript();
            var isLoaded = _blanket.utils.scriptIsLoaded(
                                currScript,
                                _blanket.utils.ifOrdered,
                                nextScript,
                                cb
                            );
            
            if (!(_blanket.utils.cache[currScript] && _blanket.utils.cache[currScript].loaded)){
                var attach = function(){
                    if (_blanket.options("debug")) {console.log("BLANKET-Mark script:"+currScript+", as loaded and move to next script.");}
                    isLoaded();
                };
                var whenDone = function(result){
                    if (_blanket.options("debug")) {console.log("BLANKET-File loading finished");}
                    if (typeof result !== 'undefined'){
                        if (_blanket.options("debug")) {console.log("BLANKET-Add file to DOM.");}
                        _blanket._addScript(result);
                    }
                    attach();
                };

                _blanket.utils.attachScript(
                    {
                        url: currScript
                    },
                    function (content){
                        _blanket.utils.processFile(
                            content,
                            currScript,
                            whenDone,
                            whenDone
                        );
                    }
                );
            }else{
                isLoaded();
            }
        },
        attachScript: function(options,cb){
           var timeout = _blanket.options("timeout") || 3000;
           setTimeout(function(){
                if (!_blanket.utils.cache[options.url].loaded){
                    throw new Error("error (timeout=" + timeout + ") loading source script: " + options.url);
                }
           },timeout);
           _blanket.utils.getFile(
                options.url,
                cb,
                function(){ throw new Error("error loading source script: " + options.url);}
            );
        },
        ifOrdered: function(nextScript,cb){
            /**
             * ordered loading callback
             * @param {nextScript} factory for priority level
             * @param {cb} the done callback
             */
            var currScript = nextScript(true);
            if (currScript){
              _blanket.utils.loadAll(nextScript,cb);
            }else{
              cb(new Error("Error in loading chain."));
            }
        },
        scriptIsLoaded: function(url,orderedCb,nextScript,cb){
            /**
           * returns a callback that checks a loading list to see if a script is loaded.
           * @param {orderedCb} callback if ordered loading is being done
           * @param {nextScript} factory for next priority level
           * @param {cb} the done callback
           */
           if (_blanket.options("debug")) {console.log("BLANKET-Returning function");}
            return function(){
                if (_blanket.options("debug")) {console.log("BLANKET-Marking file as loaded: "+url);}
           
                _blanket.utils.cache[url].loaded=true;
            
                if (_blanket.utils.allLoaded()){
                    if (_blanket.options("debug")) {console.log("BLANKET-All files loaded");}
                    cb();
                }else if (orderedCb){
                    //if it's ordered we need to
                    //traverse down to the next
                    //priority level
                    if (_blanket.options("debug")) {console.log("BLANKET-Load next file.");}
                    orderedCb(nextScript,cb);
                }
            };
        },
        cache: {},
        allLoaded: function (){
            /**
             * check if depdencies are loaded in cache
             */
            var cached = Object.keys(_blanket.utils.cache);
            for (var i=0;i<cached.length;i++){
                if (!_blanket.utils.cache[cached[i]].loaded){
                    return false;
                }
            }
            return true;
        },
        processFile: function (content,url,cb,oldCb) {
            var match = _blanket.options("filter");
            //we check the never matches first
            var antimatch = _blanket.options("antifilter");
            if (typeof antimatch !== "undefined" &&
                    _blanket.utils.matchPatternAttribute(url,antimatch)
                ){
                oldCb(content);
                if (_blanket.options("debug")) {console.log("BLANKET-File will never be instrumented:"+url);}
                _blanket.requiringFile(url,true);
            }else if (_blanket.utils.matchPatternAttribute(url,match)){
                if (_blanket.options("debug")) {console.log("BLANKET-Attempting instrument of:"+url);}
                _blanket.instrument({
                    inputFile: content,
                    inputFileName: url
                },function(instrumented){
                    try{
                        if (_blanket.options("debug")) {console.log("BLANKET-instrument of:"+url+" was successfull.");}
                        _blanket.utils.blanketEval(instrumented);
                        cb();
                        _blanket.requiringFile(url,true);
                    }
                    catch(err){
                        if (_blanket.options("ignoreScriptError")){
                            //we can continue like normal if
                            //we're ignoring script errors,
                            //but otherwise we don't want
                            //to completeLoad or the error might be
                            //missed.
                            if (_blanket.options("debug")) { console.log("BLANKET-There was an error loading the file:"+url); }
                            cb(content);
                            _blanket.requiringFile(url,true);
                        }else{
                            var e = new Error("Error parsing instrumented code: "+err);
                            e.error = err;
                            throw e;
                        }
                    }
                });
            }else{
                if (_blanket.options("debug")) { console.log("BLANKET-Loading (without instrumenting) the file:"+url);}
                oldCb(content);
                _blanket.requiringFile(url,true);
            }

        },
        cacheXhrConstructor: function(){
            var Constructor, createXhr, i, progId;
            if (typeof XMLHttpRequest !== "undefined") {
                Constructor = XMLHttpRequest;
                this.createXhr = function() { return new Constructor(); };
            } else if (typeof ActiveXObject !== "undefined") {
                Constructor = ActiveXObject;
                for (i = 0; i < 3; i += 1) {
                    progId = progIds[i];
                    try {
                        new ActiveXObject(progId);
                        break;
                    } catch (e) {}
                }
                this.createXhr = function() { return new Constructor(progId); };
            }
        },
        craeteXhr: function () {
            throw new Error("cacheXhrConstructor is supposed to overwrite this function.");
        },
        getFile: function(url, callback, errback, onXhr){
            var foundInSession = false;
            if (_blanket.blanketSession){
                var files = Object.keys(_blanket.blanketSession);
                for (var i=0; i<files.length;i++ ){
                    var key = files[i];
                    if (url.indexOf(key) > -1){
                        callback(_blanket.blanketSession[key]);
                        foundInSession=true;
                        return;
                    }
                }
            }
            if (!foundInSession){
                var xhr = _blanket.utils.createXhr();
                xhr.open('GET', url, true);

                //Allow overrides specified in config
                if (onXhr) {
                    onXhr(xhr, url);
                }

                xhr.onreadystatechange = function (evt) {
                    var status, err;
                    
                    //Do not explicitly handle errors, those should be
                    //visible via console output in the browser.
                    if (xhr.readyState === 4) {
                        status = xhr.status;
                        if ((status > 399 && status < 600) /*||
                            (status === 0 &&
                                navigator.userAgent.toLowerCase().indexOf('firefox') > -1)
                           */ ) {
                            //An http 4xx or 5xx error. Signal an error.
                            err = new Error(url + ' HTTP status: ' + status);
                            err.xhr = xhr;
                            errback(err);
                        } else {
                            callback(xhr.responseText);
                        }
                    }
                };
                try{
                    xhr.send(null);
                }catch(e){
                    if (e.code && (e.code === 101 || e.code === 1012) && _blanket.options("ignoreCors") === false){
                        //running locally and getting error from browser
                        _blanket.showManualLoader();
                    } else {
                        throw e;
                    }
                }
            }
        }
    }
});

(function(){
    var require = blanket.options("commonJS") ? blanket._commonjs.require : window.require;
    var requirejs = blanket.options("commonJS") ? blanket._commonjs.requirejs : window.requirejs;
    if (!_blanket.options("engineOnly") && _blanket.options("existingRequireJS")){

        _blanket.utils.oldloader = requirejs.load;

        requirejs.load = function (context, moduleName, url) {
            _blanket.requiringFile(url);
            _blanket.utils.getFile(url,
                function(content){
                    _blanket.utils.processFile(
                        content,
                        url,
                        function newLoader(){
                            context.completeLoad(moduleName);
                        },
                        function oldLoader(){
                            _blanket.utils.oldloader(context, moduleName, url);
                        }
                    );
                }, function (err) {
                _blanket.requiringFile();
                throw err;
            });
        };
    }
    // Save the XHR constructor, just in case frameworks like Sinon would sandbox it.
    _blanket.utils.cacheXhrConstructor();
})();

})(blanket);

(function() {

    if(!mocha) {
        throw new Exception("mocha library does not exist in global namespace!");
    }


    /*
     * Mocha Events:
     *
     *   - `start`  execution started
     *   - `end`  execution complete
     *   - `suite`  (suite) test suite execution started
     *   - `suite end`  (suite) all tests (and sub-suites) have finished
     *   - `test`  (test) test execution started
     *   - `test end`  (test) test completed
     *   - `hook`  (hook) hook execution started
     *   - `hook end`  (hook) hook complete
     *   - `pass`  (test) test passed
     *   - `fail`  (test, err) test failed
     *
     */

    var OriginalReporter = mocha._reporter;

    var BlanketReporter = function(runner) {
            runner.on('start', function() {
                blanket.setupCoverage();
            });

            runner.on('end', function() {
                blanket.onTestsDone();
            });

            runner.on('suite', function() {
                blanket.onModuleStart();
            });

            runner.on('test', function() {
                blanket.onTestStart();
            });

            runner.on('test end', function(test) {
                blanket.onTestDone(test.parent.tests.length, test.state === 'passed');
            });

            runner.on('hook', function(){
                blanket.onTestStart();
            });

            runner.on('hook end', function(){
                blanket.onTestsDone();
            });

            // NOTE: this is an instance of BlanketReporter
            new OriginalReporter(runner);
        };
        
    BlanketReporter.prototype = OriginalReporter.prototype;

    mocha.reporter(BlanketReporter);

    var oldRun = mocha.run,
        oldCallback = null;

    mocha.run = function (finishCallback) {
      oldCallback = finishCallback;
      console.log("waiting for blanket...");
    };
    blanket.beforeStartTestRunner({
        callback: function(){
            if (!blanket.options("existingRequireJS")){
                oldRun(oldCallback);
            }
            mocha.run = oldRun;
        }
    });
})();