escodegen.browser.js

// Generated by CommonJS Everywhere 0.9.6
(function (global) {
  function require(file, parentModule) {
    if ({}.hasOwnProperty.call(require.cache, file))
      return require.cache[file];
    var resolved = require.resolve(file);
    if (!resolved)
      throw new Error('Failed to resolve module ' + file);
    var module$ = {
        id: file,
        require: require,
        filename: file,
        exports: {},
        loaded: false,
        parent: parentModule,
        children: []
      };
    if (parentModule)
      parentModule.children.push(module$);
    var dirname = file.slice(0, file.lastIndexOf('/') + 1);
    require.cache[file] = module$.exports;
    resolved.call(module$.exports, module$, module$.exports, dirname, file);
    module$.loaded = true;
    return require.cache[file] = module$.exports;
  }
  require.modules = {};
  require.cache = {};
  require.resolve = function (file) {
    return {}.hasOwnProperty.call(require.modules, file) ? require.modules[file] : void 0;
  };
  require.define = function (file, fn) {
    require.modules[file] = fn;
  };
  var process = function () {
      var cwd = '/';
      return {
        title: 'browser',
        version: 'v0.10.24',
        browser: true,
        env: {},
        argv: [],
        nextTick: global.setImmediate || function (fn) {
          setTimeout(fn, 0);
        },
        cwd: function () {
          return cwd;
        },
        chdir: function (dir) {
          cwd = dir;
        }
      };
    }();
  require.define('/tools/entry-point.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      global.escodegen = require('/escodegen.js', module);
      escodegen.browser = true;
    }());
  });
  require.define('/escodegen.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      var Syntax, Precedence, BinaryPrecedence, SourceNode, estraverse, esutils, isArray, base, indent, json, renumber, hexadecimal, quotes, escapeless, newline, space, parentheses, semicolons, safeConcatenation, directive, extra, parse, sourceMap, FORMAT_MINIFY, FORMAT_DEFAULTS;
      estraverse = require('/node_modules/estraverse/estraverse.js', module);
      esutils = require('/node_modules/esutils/lib/utils.js', module);
      Syntax = {
        AssignmentExpression: 'AssignmentExpression',
        ArrayExpression: 'ArrayExpression',
        ArrayPattern: 'ArrayPattern',
        ArrowFunctionExpression: 'ArrowFunctionExpression',
        BlockStatement: 'BlockStatement',
        BinaryExpression: 'BinaryExpression',
        BreakStatement: 'BreakStatement',
        CallExpression: 'CallExpression',
        CatchClause: 'CatchClause',
        ComprehensionBlock: 'ComprehensionBlock',
        ComprehensionExpression: 'ComprehensionExpression',
        ConditionalExpression: 'ConditionalExpression',
        ContinueStatement: 'ContinueStatement',
        DirectiveStatement: 'DirectiveStatement',
        DoWhileStatement: 'DoWhileStatement',
        DebuggerStatement: 'DebuggerStatement',
        EmptyStatement: 'EmptyStatement',
        ExportDeclaration: 'ExportDeclaration',
        ExpressionStatement: 'ExpressionStatement',
        ForStatement: 'ForStatement',
        ForInStatement: 'ForInStatement',
        ForOfStatement: 'ForOfStatement',
        FunctionDeclaration: 'FunctionDeclaration',
        FunctionExpression: 'FunctionExpression',
        GeneratorExpression: 'GeneratorExpression',
        Identifier: 'Identifier',
        IfStatement: 'IfStatement',
        Literal: 'Literal',
        LabeledStatement: 'LabeledStatement',
        LogicalExpression: 'LogicalExpression',
        MemberExpression: 'MemberExpression',
        NewExpression: 'NewExpression',
        ObjectExpression: 'ObjectExpression',
        ObjectPattern: 'ObjectPattern',
        Program: 'Program',
        Property: 'Property',
        ReturnStatement: 'ReturnStatement',
        SequenceExpression: 'SequenceExpression',
        SwitchStatement: 'SwitchStatement',
        SwitchCase: 'SwitchCase',
        ThisExpression: 'ThisExpression',
        ThrowStatement: 'ThrowStatement',
        TryStatement: 'TryStatement',
        UnaryExpression: 'UnaryExpression',
        UpdateExpression: 'UpdateExpression',
        VariableDeclaration: 'VariableDeclaration',
        VariableDeclarator: 'VariableDeclarator',
        WhileStatement: 'WhileStatement',
        WithStatement: 'WithStatement',
        YieldExpression: 'YieldExpression'
      };
      Precedence = {
        Sequence: 0,
        Yield: 1,
        Assignment: 1,
        Conditional: 2,
        ArrowFunction: 2,
        LogicalOR: 3,
        LogicalAND: 4,
        BitwiseOR: 5,
        BitwiseXOR: 6,
        BitwiseAND: 7,
        Equality: 8,
        Relational: 9,
        BitwiseSHIFT: 10,
        Additive: 11,
        Multiplicative: 12,
        Unary: 13,
        Postfix: 14,
        Call: 15,
        New: 16,
        Member: 17,
        Primary: 18
      };
      BinaryPrecedence = {
        '||': Precedence.LogicalOR,
        '&&': Precedence.LogicalAND,
        '|': Precedence.BitwiseOR,
        '^': Precedence.BitwiseXOR,
        '&': Precedence.BitwiseAND,
        '==': Precedence.Equality,
        '!=': Precedence.Equality,
        '===': Precedence.Equality,
        '!==': Precedence.Equality,
        'is': Precedence.Equality,
        'isnt': Precedence.Equality,
        '<': Precedence.Relational,
        '>': Precedence.Relational,
        '<=': Precedence.Relational,
        '>=': Precedence.Relational,
        'in': Precedence.Relational,
        'instanceof': Precedence.Relational,
        '<<': Precedence.BitwiseSHIFT,
        '>>': Precedence.BitwiseSHIFT,
        '>>>': Precedence.BitwiseSHIFT,
        '+': Precedence.Additive,
        '-': Precedence.Additive,
        '*': Precedence.Multiplicative,
        '%': Precedence.Multiplicative,
        '/': Precedence.Multiplicative
      };
      function getDefaultOptions() {
        return {
          indent: null,
          base: null,
          parse: null,
          comment: false,
          format: {
            indent: {
              style: '    ',
              base: 0,
              adjustMultilineComment: false
            },
            newline: '\n',
            space: ' ',
            json: false,
            renumber: false,
            hexadecimal: false,
            quotes: 'single',
            escapeless: false,
            compact: false,
            parentheses: true,
            semicolons: true,
            safeConcatenation: false
          },
          moz: {
            comprehensionExpressionStartsWithAssignment: false,
            starlessGenerator: false,
            parenthesizedComprehensionBlock: false
          },
          sourceMap: null,
          sourceMapRoot: null,
          sourceMapWithCode: false,
          directive: false,
          verbatim: null
        };
      }
      function stringRepeat(str, num) {
        var result = '';
        for (num |= 0; num > 0; num >>>= 1, str += str) {
          if (num & 1) {
            result += str;
          }
        }
        return result;
      }
      isArray = Array.isArray;
      if (!isArray) {
        isArray = function isArray(array) {
          return Object.prototype.toString.call(array) === '[object Array]';
        };
      }
      function hasLineTerminator(str) {
        return /[\r\n]/g.test(str);
      }
      function endsWithLineTerminator(str) {
        var len = str.length;
        return len && esutils.code.isLineTerminator(str.charCodeAt(len - 1));
      }
      function updateDeeply(target, override) {
        var key, val;
        function isHashObject(target) {
          return typeof target === 'object' && target instanceof Object && !(target instanceof RegExp);
        }
        for (key in override) {
          if (override.hasOwnProperty(key)) {
            val = override[key];
            if (isHashObject(val)) {
              if (isHashObject(target[key])) {
                updateDeeply(target[key], val);
              } else {
                target[key] = updateDeeply({}, val);
              }
            } else {
              target[key] = val;
            }
          }
        }
        return target;
      }
      function generateNumber(value) {
        var result, point, temp, exponent, pos;
        if (value !== value) {
          throw new Error('Numeric literal whose value is NaN');
        }
        if (value < 0 || value === 0 && 1 / value < 0) {
          throw new Error('Numeric literal whose value is negative');
        }
        if (value === 1 / 0) {
          return json ? 'null' : renumber ? '1e400' : '1e+400';
        }
        result = '' + value;
        if (!renumber || result.length < 3) {
          return result;
        }
        point = result.indexOf('.');
        if (!json && result.charCodeAt(0) === 48 && point === 1) {
          point = 0;
          result = result.slice(1);
        }
        temp = result;
        result = result.replace('e+', 'e');
        exponent = 0;
        if ((pos = temp.indexOf('e')) > 0) {
          exponent = +temp.slice(pos + 1);
          temp = temp.slice(0, pos);
        }
        if (point >= 0) {
          exponent -= temp.length - point - 1;
          temp = +(temp.slice(0, point) + temp.slice(point + 1)) + '';
        }
        pos = 0;
        while (temp.charCodeAt(temp.length + pos - 1) === 48) {
          --pos;
        }
        if (pos !== 0) {
          exponent -= pos;
          temp = temp.slice(0, pos);
        }
        if (exponent !== 0) {
          temp += 'e' + exponent;
        }
        if ((temp.length < result.length || hexadecimal && value > 1e12 && Math.floor(value) === value && (temp = '0x' + value.toString(16)).length < result.length) && +temp === value) {
          result = temp;
        }
        return result;
      }
      function escapeRegExpCharacter(ch, previousIsBackslash) {
        if ((ch & ~1) === 8232) {
          return (previousIsBackslash ? 'u' : '\\u') + (ch === 8232 ? '2028' : '2029');
        } else if (ch === 10 || ch === 13) {
          return (previousIsBackslash ? '' : '\\') + (ch === 10 ? 'n' : 'r');
        }
        return String.fromCharCode(ch);
      }
      function generateRegExp(reg) {
        var match, result, flags, i, iz, ch, characterInBrack, previousIsBackslash;
        result = reg.toString();
        if (reg.source) {
          match = result.match(/\/([^/]*)$/);
          if (!match) {
            return result;
          }
          flags = match[1];
          result = '';
          characterInBrack = false;
          previousIsBackslash = false;
          for (i = 0, iz = reg.source.length; i < iz; ++i) {
            ch = reg.source.charCodeAt(i);
            if (!previousIsBackslash) {
              if (characterInBrack) {
                if (ch === 93) {
                  characterInBrack = false;
                }
              } else {
                if (ch === 47) {
                  result += '\\';
                } else if (ch === 91) {
                  characterInBrack = true;
                }
              }
              result += escapeRegExpCharacter(ch, previousIsBackslash);
              previousIsBackslash = ch === 92;
            } else {
              result += escapeRegExpCharacter(ch, previousIsBackslash);
              previousIsBackslash = false;
            }
          }
          return '/' + result + '/' + flags;
        }
        return result;
      }
      function escapeAllowedCharacter(code, next) {
        var hex, result = '\\';
        switch (code) {
        case 8:
          result += 'b';
          break;
        case 12:
          result += 'f';
          break;
        case 9:
          result += 't';
          break;
        default:
          hex = code.toString(16).toUpperCase();
          if (json || code > 255) {
            result += 'u' + '0000'.slice(hex.length) + hex;
          } else if (code === 0 && !esutils.code.isDecimalDigit(next)) {
            result += '0';
          } else if (code === 11) {
            result += 'x0B';
          } else {
            result += 'x' + '00'.slice(hex.length) + hex;
          }
          break;
        }
        return result;
      }
      function escapeDisallowedCharacter(code) {
        var result = '\\';
        switch (code) {
        case 92:
          result += '\\';
          break;
        case 10:
          result += 'n';
          break;
        case 13:
          result += 'r';
          break;
        case 8232:
          result += 'u2028';
          break;
        case 8233:
          result += 'u2029';
          break;
        default:
          throw new Error('Incorrectly classified character');
        }
        return result;
      }
      function escapeDirective(str) {
        var i, iz, code, quote;
        quote = quotes === 'double' ? '"' : "'";
        for (i = 0, iz = str.length; i < iz; ++i) {
          code = str.charCodeAt(i);
          if (code === 39) {
            quote = '"';
            break;
          } else if (code === 34) {
            quote = "'";
            break;
          } else if (code === 92) {
            ++i;
          }
        }
        return quote + str + quote;
      }
      function escapeString(str) {
        var result = '', i, len, code, singleQuotes = 0, doubleQuotes = 0, single, quote;
        for (i = 0, len = str.length; i < len; ++i) {
          code = str.charCodeAt(i);
          if (code === 39) {
            ++singleQuotes;
          } else if (code === 34) {
            ++doubleQuotes;
          } else if (code === 47 && json) {
            result += '\\';
          } else if (esutils.code.isLineTerminator(code) || code === 92) {
            result += escapeDisallowedCharacter(code);
            continue;
          } else if (json && code < 32 || !(json || escapeless || code >= 32 && code <= 126)) {
            result += escapeAllowedCharacter(code, str.charCodeAt(i + 1));
            continue;
          }
          result += String.fromCharCode(code);
        }
        single = !(quotes === 'double' || quotes === 'auto' && doubleQuotes < singleQuotes);
        quote = single ? "'" : '"';
        if (!(single ? singleQuotes : doubleQuotes)) {
          return quote + result + quote;
        }
        str = result;
        result = quote;
        for (i = 0, len = str.length; i < len; ++i) {
          code = str.charCodeAt(i);
          if (code === 39 && single || code === 34 && !single) {
            result += '\\';
          }
          result += String.fromCharCode(code);
        }
        return result + quote;
      }
      function flattenToString(arr) {
        var i, iz, elem, result = '';
        for (i = 0, iz = arr.length; i < iz; ++i) {
          elem = arr[i];
          result += isArray(elem) ? flattenToString(elem) : elem;
        }
        return result;
      }
      function toSourceNodeWhenNeeded(generated, node) {
        if (!sourceMap) {
          if (isArray(generated)) {
            return flattenToString(generated);
          } else {
            return generated;
          }
        }
        if (node == null) {
          if (generated instanceof SourceNode) {
            return generated;
          } else {
            node = {};
          }
        }
        if (node.loc == null) {
          return new SourceNode(null, null, sourceMap, generated, node.name || null);
        }
        return new SourceNode(node.loc.start.line, node.loc.start.column, sourceMap === true ? node.loc.source || null : sourceMap, generated, node.name || null);
      }
      function noEmptySpace() {
        return space ? space : ' ';
      }
      function join(left, right) {
        var leftSource = toSourceNodeWhenNeeded(left).toString(), rightSource = toSourceNodeWhenNeeded(right).toString(), leftCharCode = leftSource.charCodeAt(leftSource.length - 1), rightCharCode = rightSource.charCodeAt(0);
        if ((leftCharCode === 43 || leftCharCode === 45) && leftCharCode === rightCharCode || esutils.code.isIdentifierPart(leftCharCode) && esutils.code.isIdentifierPart(rightCharCode) || leftCharCode === 47 && rightCharCode === 105) {
          return [
            left,
            noEmptySpace(),
            right
          ];
        } else if (esutils.code.isWhiteSpace(leftCharCode) || esutils.code.isLineTerminator(leftCharCode) || esutils.code.isWhiteSpace(rightCharCode) || esutils.code.isLineTerminator(rightCharCode)) {
          return [
            left,
            right
          ];
        }
        return [
          left,
          space,
          right
        ];
      }
      function addIndent(stmt) {
        return [
          base,
          stmt
        ];
      }
      function withIndent(fn) {
        var previousBase, result;
        previousBase = base;
        base += indent;
        result = fn.call(this, base);
        base = previousBase;
        return result;
      }
      function calculateSpaces(str) {
        var i;
        for (i = str.length - 1; i >= 0; --i) {
          if (esutils.code.isLineTerminator(str.charCodeAt(i))) {
            break;
          }
        }
        return str.length - 1 - i;
      }
      function adjustMultilineComment(value, specialBase) {
        var array, i, len, line, j, spaces, previousBase, sn;
        array = value.split(/\r\n|[\r\n]/);
        spaces = Number.MAX_VALUE;
        for (i = 1, len = array.length; i < len; ++i) {
          line = array[i];
          j = 0;
          while (j < line.length && esutils.code.isWhiteSpace(line.charCodeAt(j))) {
            ++j;
          }
          if (spaces > j) {
            spaces = j;
          }
        }
        if (typeof specialBase !== 'undefined') {
          previousBase = base;
          if (array[1][spaces] === '*') {
            specialBase += ' ';
          }
          base = specialBase;
        } else {
          if (spaces & 1) {
            --spaces;
          }
          previousBase = base;
        }
        for (i = 1, len = array.length; i < len; ++i) {
          sn = toSourceNodeWhenNeeded(addIndent(array[i].slice(spaces)));
          array[i] = sourceMap ? sn.join('') : sn;
        }
        base = previousBase;
        return array.join('\n');
      }
      function generateComment(comment, specialBase) {
        if (comment.type === 'Line') {
          if (endsWithLineTerminator(comment.value)) {
            return '//' + comment.value;
          } else {
            return '//' + comment.value + '\n';
          }
        }
        if (extra.format.indent.adjustMultilineComment && /[\n\r]/.test(comment.value)) {
          return adjustMultilineComment('/*' + comment.value + '*/', specialBase);
        }
        return '/*' + comment.value + '*/';
      }
      function addCommentsToStatement(stmt, result) {
        var i, len, comment, save, tailingToStatement, specialBase, fragment;
        if (stmt.leadingComments && stmt.leadingComments.length > 0) {
          save = result;
          comment = stmt.leadingComments[0];
          result = [];
          if (safeConcatenation && stmt.type === Syntax.Program && stmt.body.length === 0) {
            result.push('\n');
          }
          result.push(generateComment(comment));
          if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
            result.push('\n');
          }
          for (i = 1, len = stmt.leadingComments.length; i < len; ++i) {
            comment = stmt.leadingComments[i];
            fragment = [generateComment(comment)];
            if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
              fragment.push('\n');
            }
            result.push(addIndent(fragment));
          }
          result.push(addIndent(save));
        }
        if (stmt.trailingComments) {
          tailingToStatement = !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());
          specialBase = stringRepeat(' ', calculateSpaces(toSourceNodeWhenNeeded([
            base,
            result,
            indent
          ]).toString()));
          for (i = 0, len = stmt.trailingComments.length; i < len; ++i) {
            comment = stmt.trailingComments[i];
            if (tailingToStatement) {
              if (i === 0) {
                result = [
                  result,
                  indent
                ];
              } else {
                result = [
                  result,
                  specialBase
                ];
              }
              result.push(generateComment(comment, specialBase));
            } else {
              result = [
                result,
                addIndent(generateComment(comment))
              ];
            }
            if (i !== len - 1 && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
              result = [
                result,
                '\n'
              ];
            }
          }
        }
        return result;
      }
      function parenthesize(text, current, should) {
        if (current < should) {
          return [
            '(',
            text,
            ')'
          ];
        }
        return text;
      }
      function maybeBlock(stmt, semicolonOptional, functionBody) {
        var result, noLeadingComment;
        noLeadingComment = !extra.comment || !stmt.leadingComments;
        if (stmt.type === Syntax.BlockStatement && noLeadingComment) {
          return [
            space,
            generateStatement(stmt, { functionBody: functionBody })
          ];
        }
        if (stmt.type === Syntax.EmptyStatement && noLeadingComment) {
          return ';';
        }
        withIndent(function () {
          result = [
            newline,
            addIndent(generateStatement(stmt, {
              semicolonOptional: semicolonOptional,
              functionBody: functionBody
            }))
          ];
        });
        return result;
      }
      function maybeBlockSuffix(stmt, result) {
        var ends = endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());
        if (stmt.type === Syntax.BlockStatement && (!extra.comment || !stmt.leadingComments) && !ends) {
          return [
            result,
            space
          ];
        }
        if (ends) {
          return [
            result,
            base
          ];
        }
        return [
          result,
          newline,
          base
        ];
      }
      function generateVerbatimString(string) {
        var i, iz, result;
        result = string.split(/\r\n|\n/);
        for (i = 1, iz = result.length; i < iz; i++) {
          result[i] = newline + base + result[i];
        }
        return result;
      }
      function generateVerbatim(expr, option) {
        var verbatim, result, prec;
        verbatim = expr[extra.verbatim];
        if (typeof verbatim === 'string') {
          result = parenthesize(generateVerbatimString(verbatim), Precedence.Sequence, option.precedence);
        } else {
          result = generateVerbatimString(verbatim.content);
          prec = verbatim.precedence != null ? verbatim.precedence : Precedence.Sequence;
          result = parenthesize(result, prec, option.precedence);
        }
        return toSourceNodeWhenNeeded(result, expr);
      }
      function generateIdentifier(node) {
        return toSourceNodeWhenNeeded(node.name, node);
      }
      function generatePattern(node, options) {
        var result;
        if (node.type === Syntax.Identifier) {
          result = generateIdentifier(node);
        } else {
          result = generateExpression(node, {
            precedence: options.precedence,
            allowIn: options.allowIn,
            allowCall: true
          });
        }
        return result;
      }
      function generateFunctionBody(node) {
        var result, i, len, expr, arrow;
        arrow = node.type === Syntax.ArrowFunctionExpression;
        if (arrow && node.params.length === 1 && node.params[0].type === Syntax.Identifier) {
          result = [generateIdentifier(node.params[0])];
        } else {
          result = ['('];
          for (i = 0, len = node.params.length; i < len; ++i) {
            result.push(generatePattern(node.params[i], {
              precedence: Precedence.Assignment,
              allowIn: true
            }));
            if (i + 1 < len) {
              result.push(',' + space);
            }
          }
          result.push(')');
        }
        if (arrow) {
          result.push(space);
          result.push('=>');
        }
        if (node.expression) {
          result.push(space);
          expr = generateExpression(node.body, {
            precedence: Precedence.Assignment,
            allowIn: true,
            allowCall: true
          });
          if (expr.toString().charAt(0) === '{') {
            expr = [
              '(',
              expr,
              ')'
            ];
          }
          result.push(expr);
        } else {
          result.push(maybeBlock(node.body, false, true));
        }
        return result;
      }
      function generateIterationForStatement(operator, stmt, semicolonIsNotNeeded) {
        var result = ['for' + space + '('];
        withIndent(function () {
          if (stmt.left.type === Syntax.VariableDeclaration) {
            withIndent(function () {
              result.push(stmt.left.kind + noEmptySpace());
              result.push(generateStatement(stmt.left.declarations[0], { allowIn: false }));
            });
          } else {
            result.push(generateExpression(stmt.left, {
              precedence: Precedence.Call,
              allowIn: true,
              allowCall: true
            }));
          }
          result = join(result, operator);
          result = [
            join(result, generateExpression(stmt.right, {
              precedence: Precedence.Sequence,
              allowIn: true,
              allowCall: true
            })),
            ')'
          ];
        });
        result.push(maybeBlock(stmt.body, semicolonIsNotNeeded));
        return result;
      }
      function generateExpression(expr, option) {
        var result, precedence, type, currentPrecedence, i, len, raw, fragment, multiline, leftCharCode, leftSource, rightCharCode, allowIn, allowCall, allowUnparenthesizedNew, property, isGenerator;
        precedence = option.precedence;
        allowIn = option.allowIn;
        allowCall = option.allowCall;
        type = expr.type || option.type;
        if (extra.verbatim && expr.hasOwnProperty(extra.verbatim)) {
          return generateVerbatim(expr, option);
        }
        switch (type) {
        case Syntax.SequenceExpression:
          result = [];
          allowIn |= Precedence.Sequence < precedence;
          for (i = 0, len = expr.expressions.length; i < len; ++i) {
            result.push(generateExpression(expr.expressions[i], {
              precedence: Precedence.Assignment,
              allowIn: allowIn,
              allowCall: true
            }));
            if (i + 1 < len) {
              result.push(',' + space);
            }
          }
          result = parenthesize(result, Precedence.Sequence, precedence);
          break;
        case Syntax.AssignmentExpression:
          allowIn |= Precedence.Assignment < precedence;
          result = parenthesize([
            generateExpression(expr.left, {
              precedence: Precedence.Call,
              allowIn: allowIn,
              allowCall: true
            }),
            space + expr.operator + space,
            generateExpression(expr.right, {
              precedence: Precedence.Assignment,
              allowIn: allowIn,
              allowCall: true
            })
          ], Precedence.Assignment, precedence);
          break;
        case Syntax.ArrowFunctionExpression:
          allowIn |= Precedence.ArrowFunction < precedence;
          result = parenthesize(generateFunctionBody(expr), Precedence.ArrowFunction, precedence);
          break;
        case Syntax.ConditionalExpression:
          allowIn |= Precedence.Conditional < precedence;
          result = parenthesize([
            generateExpression(expr.test, {
              precedence: Precedence.LogicalOR,
              allowIn: allowIn,
              allowCall: true
            }),
            space + '?' + space,
            generateExpression(expr.consequent, {
              precedence: Precedence.Assignment,
              allowIn: allowIn,
              allowCall: true
            }),
            space + ':' + space,
            generateExpression(expr.alternate, {
              precedence: Precedence.Assignment,
              allowIn: allowIn,
              allowCall: true
            })
          ], Precedence.Conditional, precedence);
          break;
        case Syntax.LogicalExpression:
        case Syntax.BinaryExpression:
          currentPrecedence = BinaryPrecedence[expr.operator];
          allowIn |= currentPrecedence < precedence;
          fragment = generateExpression(expr.left, {
            precedence: currentPrecedence,
            allowIn: allowIn,
            allowCall: true
          });
          leftSource = fragment.toString();
          if (leftSource.charCodeAt(leftSource.length - 1) === 47 && esutils.code.isIdentifierPart(expr.operator.charCodeAt(0))) {
            result = [
              fragment,
              noEmptySpace(),
              expr.operator
            ];
          } else {
            result = join(fragment, expr.operator);
          }
          fragment = generateExpression(expr.right, {
            precedence: currentPrecedence + 1,
            allowIn: allowIn,
            allowCall: true
          });
          if (expr.operator === '/' && fragment.toString().charAt(0) === '/' || expr.operator.slice(-1) === '<' && fragment.toString().slice(0, 3) === '!--') {
            result.push(noEmptySpace());
            result.push(fragment);
          } else {
            result = join(result, fragment);
          }
          if (expr.operator === 'in' && !allowIn) {
            result = [
              '(',
              result,
              ')'
            ];
          } else {
            result = parenthesize(result, currentPrecedence, precedence);
          }
          break;
        case Syntax.CallExpression:
          result = [generateExpression(expr.callee, {
              precedence: Precedence.Call,
              allowIn: true,
              allowCall: true,
              allowUnparenthesizedNew: false
            })];
          result.push('(');
          for (i = 0, len = expr['arguments'].length; i < len; ++i) {
            result.push(generateExpression(expr['arguments'][i], {
              precedence: Precedence.Assignment,
              allowIn: true,
              allowCall: true
            }));
            if (i + 1 < len) {
              result.push(',' + space);
            }
          }
          result.push(')');
          if (!allowCall) {
            result = [
              '(',
              result,
              ')'
            ];
          } else {
            result = parenthesize(result, Precedence.Call, precedence);
          }
          break;
        case Syntax.NewExpression:
          len = expr['arguments'].length;
          allowUnparenthesizedNew = option.allowUnparenthesizedNew === undefined || option.allowUnparenthesizedNew;
          result = join('new', generateExpression(expr.callee, {
            precedence: Precedence.New,
            allowIn: true,
            allowCall: false,
            allowUnparenthesizedNew: allowUnparenthesizedNew && !parentheses && len === 0
          }));
          if (!allowUnparenthesizedNew || parentheses || len > 0) {
            result.push('(');
            for (i = 0; i < len; ++i) {
              result.push(generateExpression(expr['arguments'][i], {
                precedence: Precedence.Assignment,
                allowIn: true,
                allowCall: true
              }));
              if (i + 1 < len) {
                result.push(',' + space);
              }
            }
            result.push(')');
          }
          result = parenthesize(result, Precedence.New, precedence);
          break;
        case Syntax.MemberExpression:
          result = [generateExpression(expr.object, {
              precedence: Precedence.Call,
              allowIn: true,
              allowCall: allowCall,
              allowUnparenthesizedNew: false
            })];
          if (expr.computed) {
            result.push('[');
            result.push(generateExpression(expr.property, {
              precedence: Precedence.Sequence,
              allowIn: true,
              allowCall: allowCall
            }));
            result.push(']');
          } else {
            if (expr.object.type === Syntax.Literal && typeof expr.object.value === 'number') {
              fragment = toSourceNodeWhenNeeded(result).toString();
              if (fragment.indexOf('.') < 0 && !/[eExX]/.test(fragment) && esutils.code.isDecimalDigit(fragment.charCodeAt(fragment.length - 1)) && !(fragment.length >= 2 && fragment.charCodeAt(0) === 48)) {
                result.push('.');
              }
            }
            result.push('.');
            result.push(generateIdentifier(expr.property));
          }
          result = parenthesize(result, Precedence.Member, precedence);
          break;
        case Syntax.UnaryExpression:
          fragment = generateExpression(expr.argument, {
            precedence: Precedence.Unary,
            allowIn: true,
            allowCall: true
          });
          if (space === '') {
            result = join(expr.operator, fragment);
          } else {
            result = [expr.operator];
            if (expr.operator.length > 2) {
              result = join(result, fragment);
            } else {
              leftSource = toSourceNodeWhenNeeded(result).toString();
              leftCharCode = leftSource.charCodeAt(leftSource.length - 1);
              rightCharCode = fragment.toString().charCodeAt(0);
              if ((leftCharCode === 43 || leftCharCode === 45) && leftCharCode === rightCharCode || esutils.code.isIdentifierPart(leftCharCode) && esutils.code.isIdentifierPart(rightCharCode)) {
                result.push(noEmptySpace());
                result.push(fragment);
              } else {
                result.push(fragment);
              }
            }
          }
          result = parenthesize(result, Precedence.Unary, precedence);
          break;
        case Syntax.YieldExpression:
          if (expr.delegate) {
            result = 'yield*';
          } else {
            result = 'yield';
          }
          if (expr.argument) {
            result = join(result, generateExpression(expr.argument, {
              precedence: Precedence.Yield,
              allowIn: true,
              allowCall: true
            }));
          }
          result = parenthesize(result, Precedence.Yield, precedence);
          break;
        case Syntax.UpdateExpression:
          if (expr.prefix) {
            result = parenthesize([
              expr.operator,
              generateExpression(expr.argument, {
                precedence: Precedence.Unary,
                allowIn: true,
                allowCall: true
              })
            ], Precedence.Unary, precedence);
          } else {
            result = parenthesize([
              generateExpression(expr.argument, {
                precedence: Precedence.Postfix,
                allowIn: true,
                allowCall: true
              }),
              expr.operator
            ], Precedence.Postfix, precedence);
          }
          break;
        case Syntax.FunctionExpression:
          isGenerator = expr.generator && !extra.moz.starlessGenerator;
          result = isGenerator ? 'function*' : 'function';
          if (expr.id) {
            result = [
              result,
              isGenerator ? space : noEmptySpace(),
              generateIdentifier(expr.id),
              generateFunctionBody(expr)
            ];
          } else {
            result = [
              result + space,
              generateFunctionBody(expr)
            ];
          }
          break;
        case Syntax.ArrayPattern:
        case Syntax.ArrayExpression:
          if (!expr.elements.length) {
            result = '[]';
            break;
          }
          multiline = expr.elements.length > 1;
          result = [
            '[',
            multiline ? newline : ''
          ];
          withIndent(function (indent) {
            for (i = 0, len = expr.elements.length; i < len; ++i) {
              if (!expr.elements[i]) {
                if (multiline) {
                  result.push(indent);
                }
                if (i + 1 === len) {
                  result.push(',');
                }
              } else {
                result.push(multiline ? indent : '');
                result.push(generateExpression(expr.elements[i], {
                  precedence: Precedence.Assignment,
                  allowIn: true,
                  allowCall: true
                }));
              }
              if (i + 1 < len) {
                result.push(',' + (multiline ? newline : space));
              }
            }
          });
          if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
            result.push(newline);
          }
          result.push(multiline ? base : '');
          result.push(']');
          break;
        case Syntax.Property:
          if (expr.kind === 'get' || expr.kind === 'set') {
            result = [
              expr.kind,
              noEmptySpace(),
              generateExpression(expr.key, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              }),
              generateFunctionBody(expr.value)
            ];
          } else {
            if (expr.shorthand) {
              result = generateExpression(expr.key, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              });
            } else if (expr.method) {
              result = [];
              if (expr.value.generator) {
                result.push('*');
              }
              result.push(generateExpression(expr.key, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              }));
              result.push(generateFunctionBody(expr.value));
            } else {
              result = [
                generateExpression(expr.key, {
                  precedence: Precedence.Sequence,
                  allowIn: true,
                  allowCall: true
                }),
                ':' + space,
                generateExpression(expr.value, {
                  precedence: Precedence.Assignment,
                  allowIn: true,
                  allowCall: true
                })
              ];
            }
          }
          break;
        case Syntax.ObjectExpression:
          if (!expr.properties.length) {
            result = '{}';
            break;
          }
          multiline = expr.properties.length > 1;
          withIndent(function () {
            fragment = generateExpression(expr.properties[0], {
              precedence: Precedence.Sequence,
              allowIn: true,
              allowCall: true,
              type: Syntax.Property
            });
          });
          if (!multiline) {
            if (!hasLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
              result = [
                '{',
                space,
                fragment,
                space,
                '}'
              ];
              break;
            }
          }
          withIndent(function (indent) {
            result = [
              '{',
              newline,
              indent,
              fragment
            ];
            if (multiline) {
              result.push(',' + newline);
              for (i = 1, len = expr.properties.length; i < len; ++i) {
                result.push(indent);
                result.push(generateExpression(expr.properties[i], {
                  precedence: Precedence.Sequence,
                  allowIn: true,
                  allowCall: true,
                  type: Syntax.Property
                }));
                if (i + 1 < len) {
                  result.push(',' + newline);
                }
              }
            }
          });
          if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
            result.push(newline);
          }
          result.push(base);
          result.push('}');
          break;
        case Syntax.ObjectPattern:
          if (!expr.properties.length) {
            result = '{}';
            break;
          }
          multiline = false;
          if (expr.properties.length === 1) {
            property = expr.properties[0];
            if (property.value.type !== Syntax.Identifier) {
              multiline = true;
            }
          } else {
            for (i = 0, len = expr.properties.length; i < len; ++i) {
              property = expr.properties[i];
              if (!property.shorthand) {
                multiline = true;
                break;
              }
            }
          }
          result = [
            '{',
            multiline ? newline : ''
          ];
          withIndent(function (indent) {
            for (i = 0, len = expr.properties.length; i < len; ++i) {
              result.push(multiline ? indent : '');
              result.push(generateExpression(expr.properties[i], {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              }));
              if (i + 1 < len) {
                result.push(',' + (multiline ? newline : space));
              }
            }
          });
          if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
            result.push(newline);
          }
          result.push(multiline ? base : '');
          result.push('}');
          break;
        case Syntax.ThisExpression:
          result = 'this';
          break;
        case Syntax.Identifier:
          result = generateIdentifier(expr);
          break;
        case Syntax.Literal:
          if (expr.hasOwnProperty('raw') && parse) {
            try {
              raw = parse(expr.raw).body[0].expression;
              if (raw.type === Syntax.Literal) {
                if (raw.value === expr.value) {
                  result = expr.raw;
                  break;
                }
              }
            } catch (e) {
            }
          }
          if (expr.value === null) {
            result = 'null';
            break;
          }
          if (typeof expr.value === 'string') {
            result = escapeString(expr.value);
            break;
          }
          if (typeof expr.value === 'number') {
            result = generateNumber(expr.value);
            break;
          }
          if (typeof expr.value === 'boolean') {
            result = expr.value ? 'true' : 'false';
            break;
          }
          result = generateRegExp(expr.value);
          break;
        case Syntax.GeneratorExpression:
        case Syntax.ComprehensionExpression:
          result = type === Syntax.GeneratorExpression ? ['('] : ['['];
          if (extra.moz.comprehensionExpressionStartsWithAssignment) {
            fragment = generateExpression(expr.body, {
              precedence: Precedence.Assignment,
              allowIn: true,
              allowCall: true
            });
            result.push(fragment);
          }
          if (expr.blocks) {
            withIndent(function () {
              for (i = 0, len = expr.blocks.length; i < len; ++i) {
                fragment = generateExpression(expr.blocks[i], {
                  precedence: Precedence.Sequence,
                  allowIn: true,
                  allowCall: true
                });
                if (i > 0 || extra.moz.comprehensionExpressionStartsWithAssignment) {
                  result = join(result, fragment);
                } else {
                  result.push(fragment);
                }
              }
            });
          }
          if (expr.filter) {
            result = join(result, 'if' + space);
            fragment = generateExpression(expr.filter, {
              precedence: Precedence.Sequence,
              allowIn: true,
              allowCall: true
            });
            if (extra.moz.parenthesizedComprehensionBlock) {
              result = join(result, [
                '(',
                fragment,
                ')'
              ]);
            } else {
              result = join(result, fragment);
            }
          }
          if (!extra.moz.comprehensionExpressionStartsWithAssignment) {
            fragment = generateExpression(expr.body, {
              precedence: Precedence.Assignment,
              allowIn: true,
              allowCall: true
            });
            result = join(result, fragment);
          }
          result.push(type === Syntax.GeneratorExpression ? ')' : ']');
          break;
        case Syntax.ComprehensionBlock:
          if (expr.left.type === Syntax.VariableDeclaration) {
            fragment = [
              expr.left.kind,
              noEmptySpace(),
              generateStatement(expr.left.declarations[0], { allowIn: false })
            ];
          } else {
            fragment = generateExpression(expr.left, {
              precedence: Precedence.Call,
              allowIn: true,
              allowCall: true
            });
          }
          fragment = join(fragment, expr.of ? 'of' : 'in');
          fragment = join(fragment, generateExpression(expr.right, {
            precedence: Precedence.Sequence,
            allowIn: true,
            allowCall: true
          }));
          if (extra.moz.parenthesizedComprehensionBlock) {
            result = [
              'for' + space + '(',
              fragment,
              ')'
            ];
          } else {
            result = join('for' + space, fragment);
          }
          break;
        default:
          throw new Error('Unknown expression type: ' + expr.type);
        }
        return toSourceNodeWhenNeeded(result, expr);
      }
      function generateStatement(stmt, option) {
        var i, len, result, node, allowIn, functionBody, directiveContext, fragment, semicolon, isGenerator;
        allowIn = true;
        semicolon = ';';
        functionBody = false;
        directiveContext = false;
        if (option) {
          allowIn = option.allowIn === undefined || option.allowIn;
          if (!semicolons && option.semicolonOptional === true) {
            semicolon = '';
          }
          functionBody = option.functionBody;
          directiveContext = option.directiveContext;
        }
        switch (stmt.type) {
        case Syntax.BlockStatement:
          result = [
            '{',
            newline
          ];
          withIndent(function () {
            for (i = 0, len = stmt.body.length; i < len; ++i) {
              fragment = addIndent(generateStatement(stmt.body[i], {
                semicolonOptional: i === len - 1,
                directiveContext: functionBody
              }));
              result.push(fragment);
              if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
                result.push(newline);
              }
            }
          });
          result.push(addIndent('}'));
          break;
        case Syntax.BreakStatement:
          if (stmt.label) {
            result = 'break ' + stmt.label.name + semicolon;
          } else {
            result = 'break' + semicolon;
          }
          break;
        case Syntax.ContinueStatement:
          if (stmt.label) {
            result = 'continue ' + stmt.label.name + semicolon;
          } else {
            result = 'continue' + semicolon;
          }
          break;
        case Syntax.DirectiveStatement:
          if (stmt.raw) {
            result = stmt.raw + semicolon;
          } else {
            result = escapeDirective(stmt.directive) + semicolon;
          }
          break;
        case Syntax.DoWhileStatement:
          result = join('do', maybeBlock(stmt.body));
          result = maybeBlockSuffix(stmt.body, result);
          result = join(result, [
            'while' + space + '(',
            generateExpression(stmt.test, {
              precedence: Precedence.Sequence,
              allowIn: true,
              allowCall: true
            }),
            ')' + semicolon
          ]);
          break;
        case Syntax.CatchClause:
          withIndent(function () {
            var guard;
            result = [
              'catch' + space + '(',
              generateExpression(stmt.param, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              }),
              ')'
            ];
            if (stmt.guard) {
              guard = generateExpression(stmt.guard, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              });
              result.splice(2, 0, ' if ', guard);
            }
          });
          result.push(maybeBlock(stmt.body));
          break;
        case Syntax.DebuggerStatement:
          result = 'debugger' + semicolon;
          break;
        case Syntax.EmptyStatement:
          result = ';';
          break;
        case Syntax.ExportDeclaration:
          result = 'export ';
          if (stmt.declaration) {
            result = [
              result,
              generateStatement(stmt.declaration, { semicolonOptional: semicolon === '' })
            ];
            break;
          }
          break;
        case Syntax.ExpressionStatement:
          result = [generateExpression(stmt.expression, {
              precedence: Precedence.Sequence,
              allowIn: true,
              allowCall: true
            })];
          fragment = toSourceNodeWhenNeeded(result).toString();
          if (fragment.charAt(0) === '{' || fragment.slice(0, 8) === 'function' && '* ('.indexOf(fragment.charAt(8)) >= 0 || directive && directiveContext && stmt.expression.type === Syntax.Literal && typeof stmt.expression.value === 'string') {
            result = [
              '(',
              result,
              ')' + semicolon
            ];
          } else {
            result.push(semicolon);
          }
          break;
        case Syntax.VariableDeclarator:
          if (stmt.init) {
            result = [
              generateExpression(stmt.id, {
                precedence: Precedence.Assignment,
                allowIn: allowIn,
                allowCall: true
              }),
              space,
              '=',
              space,
              generateExpression(stmt.init, {
                precedence: Precedence.Assignment,
                allowIn: allowIn,
                allowCall: true
              })
            ];
          } else {
            result = generatePattern(stmt.id, {
              precedence: Precedence.Assignment,
              allowIn: allowIn
            });
          }
          break;
        case Syntax.VariableDeclaration:
          result = [stmt.kind];
          if (stmt.declarations.length === 1 && stmt.declarations[0].init && stmt.declarations[0].init.type === Syntax.FunctionExpression) {
            result.push(noEmptySpace());
            result.push(generateStatement(stmt.declarations[0], { allowIn: allowIn }));
          } else {
            withIndent(function () {
              node = stmt.declarations[0];
              if (extra.comment && node.leadingComments) {
                result.push('\n');
                result.push(addIndent(generateStatement(node, { allowIn: allowIn })));
              } else {
                result.push(noEmptySpace());
                result.push(generateStatement(node, { allowIn: allowIn }));
              }
              for (i = 1, len = stmt.declarations.length; i < len; ++i) {
                node = stmt.declarations[i];
                if (extra.comment && node.leadingComments) {
                  result.push(',' + newline);
                  result.push(addIndent(generateStatement(node, { allowIn: allowIn })));
                } else {
                  result.push(',' + space);
                  result.push(generateStatement(node, { allowIn: allowIn }));
                }
              }
            });
          }
          result.push(semicolon);
          break;
        case Syntax.ThrowStatement:
          result = [
            join('throw', generateExpression(stmt.argument, {
              precedence: Precedence.Sequence,
              allowIn: true,
              allowCall: true
            })),
            semicolon
          ];
          break;
        case Syntax.TryStatement:
          result = [
            'try',
            maybeBlock(stmt.block)
          ];
          result = maybeBlockSuffix(stmt.block, result);
          if (stmt.handlers) {
            for (i = 0, len = stmt.handlers.length; i < len; ++i) {
              result = join(result, generateStatement(stmt.handlers[i]));
              if (stmt.finalizer || i + 1 !== len) {
                result = maybeBlockSuffix(stmt.handlers[i].body, result);
              }
            }
          } else {
            stmt.guardedHandlers = stmt.guardedHandlers || [];
            for (i = 0, len = stmt.guardedHandlers.length; i < len; ++i) {
              result = join(result, generateStatement(stmt.guardedHandlers[i]));
              if (stmt.finalizer || i + 1 !== len) {
                result = maybeBlockSuffix(stmt.guardedHandlers[i].body, result);
              }
            }
            if (stmt.handler) {
              if (isArray(stmt.handler)) {
                for (i = 0, len = stmt.handler.length; i < len; ++i) {
                  result = join(result, generateStatement(stmt.handler[i]));
                  if (stmt.finalizer || i + 1 !== len) {
                    result = maybeBlockSuffix(stmt.handler[i].body, result);
                  }
                }
              } else {
                result = join(result, generateStatement(stmt.handler));
                if (stmt.finalizer) {
                  result = maybeBlockSuffix(stmt.handler.body, result);
                }
              }
            }
          }
          if (stmt.finalizer) {
            result = join(result, [
              'finally',
              maybeBlock(stmt.finalizer)
            ]);
          }
          break;
        case Syntax.SwitchStatement:
          withIndent(function () {
            result = [
              'switch' + space + '(',
              generateExpression(stmt.discriminant, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              }),
              ')' + space + '{' + newline
            ];
          });
          if (stmt.cases) {
            for (i = 0, len = stmt.cases.length; i < len; ++i) {
              fragment = addIndent(generateStatement(stmt.cases[i], { semicolonOptional: i === len - 1 }));
              result.push(fragment);
              if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
                result.push(newline);
              }
            }
          }
          result.push(addIndent('}'));
          break;
        case Syntax.SwitchCase:
          withIndent(function () {
            if (stmt.test) {
              result = [
                join('case', generateExpression(stmt.test, {
                  precedence: Precedence.Sequence,
                  allowIn: true,
                  allowCall: true
                })),
                ':'
              ];
            } else {
              result = ['default:'];
            }
            i = 0;
            len = stmt.consequent.length;
            if (len && stmt.consequent[0].type === Syntax.BlockStatement) {
              fragment = maybeBlock(stmt.consequent[0]);
              result.push(fragment);
              i = 1;
            }
            if (i !== len && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
              result.push(newline);
            }
            for (; i < len; ++i) {
              fragment = addIndent(generateStatement(stmt.consequent[i], { semicolonOptional: i === len - 1 && semicolon === '' }));
              result.push(fragment);
              if (i + 1 !== len && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
                result.push(newline);
              }
            }
          });
          break;
        case Syntax.IfStatement:
          withIndent(function () {
            result = [
              'if' + space + '(',
              generateExpression(stmt.test, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              }),
              ')'
            ];
          });
          if (stmt.alternate) {
            result.push(maybeBlock(stmt.consequent));
            result = maybeBlockSuffix(stmt.consequent, result);
            if (stmt.alternate.type === Syntax.IfStatement) {
              result = join(result, [
                'else ',
                generateStatement(stmt.alternate, { semicolonOptional: semicolon === '' })
              ]);
            } else {
              result = join(result, join('else', maybeBlock(stmt.alternate, semicolon === '')));
            }
          } else {
            result.push(maybeBlock(stmt.consequent, semicolon === ''));
          }
          break;
        case Syntax.ForStatement:
          withIndent(function () {
            result = ['for' + space + '('];
            if (stmt.init) {
              if (stmt.init.type === Syntax.VariableDeclaration) {
                result.push(generateStatement(stmt.init, { allowIn: false }));
              } else {
                result.push(generateExpression(stmt.init, {
                  precedence: Precedence.Sequence,
                  allowIn: false,
                  allowCall: true
                }));
                result.push(';');
              }
            } else {
              result.push(';');
            }
            if (stmt.test) {
              result.push(space);
              result.push(generateExpression(stmt.test, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              }));
              result.push(';');
            } else {
              result.push(';');
            }
            if (stmt.update) {
              result.push(space);
              result.push(generateExpression(stmt.update, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              }));
              result.push(')');
            } else {
              result.push(')');
            }
          });
          result.push(maybeBlock(stmt.body, semicolon === ''));
          break;
        case Syntax.ForInStatement:
          result = generateIterationForStatement('in', stmt, semicolon === '');
          break;
        case Syntax.ForOfStatement:
          result = generateIterationForStatement('of', stmt, semicolon === '');
          break;
        case Syntax.LabeledStatement:
          result = [
            stmt.label.name + ':',
            maybeBlock(stmt.body, semicolon === '')
          ];
          break;
        case Syntax.Program:
          len = stmt.body.length;
          result = [safeConcatenation && len > 0 ? '\n' : ''];
          for (i = 0; i < len; ++i) {
            fragment = addIndent(generateStatement(stmt.body[i], {
              semicolonOptional: !safeConcatenation && i === len - 1,
              directiveContext: true
            }));
            result.push(fragment);
            if (i + 1 < len && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
              result.push(newline);
            }
          }
          break;
        case Syntax.FunctionDeclaration:
          isGenerator = stmt.generator && !extra.moz.starlessGenerator;
          result = [
            isGenerator ? 'function*' : 'function',
            isGenerator ? space : noEmptySpace(),
            generateIdentifier(stmt.id),
            generateFunctionBody(stmt)
          ];
          break;
        case Syntax.ReturnStatement:
          if (stmt.argument) {
            result = [
              join('return', generateExpression(stmt.argument, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              })),
              semicolon
            ];
          } else {
            result = ['return' + semicolon];
          }
          break;
        case Syntax.WhileStatement:
          withIndent(function () {
            result = [
              'while' + space + '(',
              generateExpression(stmt.test, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              }),
              ')'
            ];
          });
          result.push(maybeBlock(stmt.body, semicolon === ''));
          break;
        case Syntax.WithStatement:
          withIndent(function () {
            result = [
              'with' + space + '(',
              generateExpression(stmt.object, {
                precedence: Precedence.Sequence,
                allowIn: true,
                allowCall: true
              }),
              ')'
            ];
          });
          result.push(maybeBlock(stmt.body, semicolon === ''));
          break;
        default:
          throw new Error('Unknown statement type: ' + stmt.type);
        }
        if (extra.comment) {
          result = addCommentsToStatement(stmt, result);
        }
        fragment = toSourceNodeWhenNeeded(result).toString();
        if (stmt.type === Syntax.Program && !safeConcatenation && newline === '' && fragment.charAt(fragment.length - 1) === '\n') {
          result = sourceMap ? toSourceNodeWhenNeeded(result).replaceRight(/\s+$/, '') : fragment.replace(/\s+$/, '');
        }
        return toSourceNodeWhenNeeded(result, stmt);
      }
      function generate(node, options) {
        var defaultOptions = getDefaultOptions(), result, pair;
        if (options != null) {
          if (typeof options.indent === 'string') {
            defaultOptions.format.indent.style = options.indent;
          }
          if (typeof options.base === 'number') {
            defaultOptions.format.indent.base = options.base;
          }
          options = updateDeeply(defaultOptions, options);
          indent = options.format.indent.style;
          if (typeof options.base === 'string') {
            base = options.base;
          } else {
            base = stringRepeat(indent, options.format.indent.base);
          }
        } else {
          options = defaultOptions;
          indent = options.format.indent.style;
          base = stringRepeat(indent, options.format.indent.base);
        }
        json = options.format.json;
        renumber = options.format.renumber;
        hexadecimal = json ? false : options.format.hexadecimal;
        quotes = json ? 'double' : options.format.quotes;
        escapeless = options.format.escapeless;
        newline = options.format.newline;
        space = options.format.space;
        if (options.format.compact) {
          newline = space = indent = base = '';
        }
        parentheses = options.format.parentheses;
        semicolons = options.format.semicolons;
        safeConcatenation = options.format.safeConcatenation;
        directive = options.directive;
        parse = json ? null : options.parse;
        sourceMap = options.sourceMap;
        extra = options;
        if (sourceMap) {
          if (!exports.browser) {
            SourceNode = require('/node_modules/source-map/lib/source-map.js', module).SourceNode;
          } else {
            SourceNode = global.sourceMap.SourceNode;
          }
        }
        switch (node.type) {
        case Syntax.BlockStatement:
        case Syntax.BreakStatement:
        case Syntax.CatchClause:
        case Syntax.ContinueStatement:
        case Syntax.DirectiveStatement:
        case Syntax.DoWhileStatement:
        case Syntax.DebuggerStatement:
        case Syntax.EmptyStatement:
        case Syntax.ExpressionStatement:
        case Syntax.ForStatement:
        case Syntax.ForInStatement:
        case Syntax.ForOfStatement:
        case Syntax.FunctionDeclaration:
        case Syntax.IfStatement:
        case Syntax.LabeledStatement:
        case Syntax.Program:
        case Syntax.ReturnStatement:
        case Syntax.SwitchStatement:
        case Syntax.SwitchCase:
        case Syntax.ThrowStatement:
        case Syntax.TryStatement:
        case Syntax.VariableDeclaration:
        case Syntax.VariableDeclarator:
        case Syntax.WhileStatement:
        case Syntax.WithStatement:
          result = generateStatement(node);
          break;
        case Syntax.AssignmentExpression:
        case Syntax.ArrayExpression:
        case Syntax.ArrayPattern:
        case Syntax.BinaryExpression:
        case Syntax.CallExpression:
        case Syntax.ConditionalExpression:
        case Syntax.FunctionExpression:
        case Syntax.Identifier:
        case Syntax.Literal:
        case Syntax.LogicalExpression:
        case Syntax.MemberExpression:
        case Syntax.NewExpression:
        case Syntax.ObjectExpression:
        case Syntax.ObjectPattern:
        case Syntax.Property:
        case Syntax.SequenceExpression:
        case Syntax.ThisExpression:
        case Syntax.UnaryExpression:
        case Syntax.UpdateExpression:
        case Syntax.YieldExpression:
          result = generateExpression(node, {
            precedence: Precedence.Sequence,
            allowIn: true,
            allowCall: true
          });
          break;
        default:
          throw new Error('Unknown node type: ' + node.type);
        }
        if (!sourceMap) {
          return result.toString();
        }
        pair = result.toStringWithSourceMap({
          file: options.file,
          sourceRoot: options.sourceMapRoot
        });
        if (options.sourceContent) {
          pair.map.setSourceContent(options.sourceMap, options.sourceContent);
        }
        if (options.sourceMapWithCode) {
          return pair;
        }
        return pair.map.toString();
      }
      FORMAT_MINIFY = {
        indent: {
          style: '',
          base: 0
        },
        renumber: true,
        hexadecimal: true,
        quotes: 'auto',
        escapeless: true,
        compact: true,
        parentheses: false,
        semicolons: false
      };
      FORMAT_DEFAULTS = getDefaultOptions().format;
      exports.version = require('/package.json', module).version;
      exports.generate = generate;
      exports.attachComments = estraverse.attachComments;
      exports.Precedence = updateDeeply({}, Precedence);
      exports.browser = false;
      exports.FORMAT_MINIFY = FORMAT_MINIFY;
      exports.FORMAT_DEFAULTS = FORMAT_DEFAULTS;
    }());
  });
  require.define('/package.json', function (module, exports, __dirname, __filename) {
    module.exports = {
      'name': 'escodegen',
      'description': 'ECMAScript code generator',
      'homepage': 'http://github.com/Constellation/escodegen',
      'main': 'escodegen.js',
      'bin': {
        'esgenerate': './bin/esgenerate.js',
        'escodegen': './bin/escodegen.js'
      },
      'version': '1.3.0',
      'engines': { 'node': '>=0.4.0' },
      'maintainers': [{
          'name': 'Yusuke Suzuki',
          'email': 'utatane.tea@gmail.com',
          'web': 'http://github.com/Constellation'
        }],
      'repository': {
        'type': 'git',
        'url': 'http://github.com/Constellation/escodegen.git'
      },
      'dependencies': {
        'esprima': '~1.0.4',
        'estraverse': '~1.5.0',
        'esutils': '~1.0.0'
      },
      'optionalDependencies': { 'source-map': '~0.1.30' },
      'devDependencies': {
        'esprima-moz': '*',
        'q': '*',
        'bower': '*',
        'semver': '*',
        'chai': '~1.7.2',
        'gulp': '~3.5.0',
        'gulp-mocha': '~0.4.1',
        'gulp-eslint': '~0.1.2',
        'jshint-stylish': '~0.1.5',
        'gulp-jshint': '~1.4.0',
        'commonjs-everywhere': '~0.9.6'
      },
      'licenses': [{
          'type': 'BSD',
          'url': 'http://github.com/Constellation/escodegen/raw/master/LICENSE.BSD'
        }],
      'scripts': {
        'test': 'gulp travis',
        'unit-test': 'gulp test',
        'lint': 'gulp lint',
        'release': 'node tools/release.js',
        'build-min': './node_modules/.bin/cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js',
        'build': './node_modules/.bin/cjsify -a path: tools/entry-point.js > escodegen.browser.js'
      }
    };
  });
  require.define('/node_modules/source-map/lib/source-map.js', function (module, exports, __dirname, __filename) {
    exports.SourceMapGenerator = require('/node_modules/source-map/lib/source-map/source-map-generator.js', module).SourceMapGenerator;
    exports.SourceMapConsumer = require('/node_modules/source-map/lib/source-map/source-map-consumer.js', module).SourceMapConsumer;
    exports.SourceNode = require('/node_modules/source-map/lib/source-map/source-node.js', module).SourceNode;
  });
  require.define('/node_modules/source-map/lib/source-map/source-node.js', function (module, exports, __dirname, __filename) {
    if (typeof define !== 'function') {
      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
    }
    define(function (require, exports, module) {
      var SourceMapGenerator = require('/node_modules/source-map/lib/source-map/source-map-generator.js', module).SourceMapGenerator;
      var util = require('/node_modules/source-map/lib/source-map/util.js', module);
      function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
        this.children = [];
        this.sourceContents = {};
        this.line = aLine === undefined ? null : aLine;
        this.column = aColumn === undefined ? null : aColumn;
        this.source = aSource === undefined ? null : aSource;
        this.name = aName === undefined ? null : aName;
        if (aChunks != null)
          this.add(aChunks);
      }
      SourceNode.fromStringWithSourceMap = function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) {
        var node = new SourceNode;
        var remainingLines = aGeneratedCode.split('\n');
        var lastGeneratedLine = 1, lastGeneratedColumn = 0;
        var lastMapping = null;
        aSourceMapConsumer.eachMapping(function (mapping) {
          if (lastMapping === null) {
            while (lastGeneratedLine < mapping.generatedLine) {
              node.add(remainingLines.shift() + '\n');
              lastGeneratedLine++;
            }
            if (lastGeneratedColumn < mapping.generatedColumn) {
              var nextLine = remainingLines[0];
              node.add(nextLine.substr(0, mapping.generatedColumn));
              remainingLines[0] = nextLine.substr(mapping.generatedColumn);
              lastGeneratedColumn = mapping.generatedColumn;
            }
          } else {
            if (lastGeneratedLine < mapping.generatedLine) {
              var code = '';
              do {
                code += remainingLines.shift() + '\n';
                lastGeneratedLine++;
                lastGeneratedColumn = 0;
              } while (lastGeneratedLine < mapping.generatedLine);
              if (lastGeneratedColumn < mapping.generatedColumn) {
                var nextLine = remainingLines[0];
                code += nextLine.substr(0, mapping.generatedColumn);
                remainingLines[0] = nextLine.substr(mapping.generatedColumn);
                lastGeneratedColumn = mapping.generatedColumn;
              }
              addMappingWithCode(lastMapping, code);
            } else {
              var nextLine = remainingLines[0];
              var code = nextLine.substr(0, mapping.generatedColumn - lastGeneratedColumn);
              remainingLines[0] = nextLine.substr(mapping.generatedColumn - lastGeneratedColumn);
              lastGeneratedColumn = mapping.generatedColumn;
              addMappingWithCode(lastMapping, code);
            }
          }
          lastMapping = mapping;
        }, this);
        addMappingWithCode(lastMapping, remainingLines.join('\n'));
        aSourceMapConsumer.sources.forEach(function (sourceFile) {
          var content = aSourceMapConsumer.sourceContentFor(sourceFile);
          if (content) {
            node.setSourceContent(sourceFile, content);
          }
        });
        return node;
        function addMappingWithCode(mapping, code) {
          if (mapping === null || mapping.source === undefined) {
            node.add(code);
          } else {
            node.add(new SourceNode(mapping.originalLine, mapping.originalColumn, mapping.source, code, mapping.name));
          }
        }
      };
      SourceNode.prototype.add = function SourceNode_add(aChunk) {
        if (Array.isArray(aChunk)) {
          aChunk.forEach(function (chunk) {
            this.add(chunk);
          }, this);
        } else if (aChunk instanceof SourceNode || typeof aChunk === 'string') {
          if (aChunk) {
            this.children.push(aChunk);
          }
        } else {
          throw new TypeError('Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' + aChunk);
        }
        return this;
      };
      SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
        if (Array.isArray(aChunk)) {
          for (var i = aChunk.length - 1; i >= 0; i--) {
            this.prepend(aChunk[i]);
          }
        } else if (aChunk instanceof SourceNode || typeof aChunk === 'string') {
          this.children.unshift(aChunk);
        } else {
          throw new TypeError('Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' + aChunk);
        }
        return this;
      };
      SourceNode.prototype.walk = function SourceNode_walk(aFn) {
        var chunk;
        for (var i = 0, len = this.children.length; i < len; i++) {
          chunk = this.children[i];
          if (chunk instanceof SourceNode) {
            chunk.walk(aFn);
          } else {
            if (chunk !== '') {
              aFn(chunk, {
                source: this.source,
                line: this.line,
                column: this.column,
                name: this.name
              });
            }
          }
        }
      };
      SourceNode.prototype.join = function SourceNode_join(aSep) {
        var newChildren;
        var i;
        var len = this.children.length;
        if (len > 0) {
          newChildren = [];
          for (i = 0; i < len - 1; i++) {
            newChildren.push(this.children[i]);
            newChildren.push(aSep);
          }
          newChildren.push(this.children[i]);
          this.children = newChildren;
        }
        return this;
      };
      SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
        var lastChild = this.children[this.children.length - 1];
        if (lastChild instanceof SourceNode) {
          lastChild.replaceRight(aPattern, aReplacement);
        } else if (typeof lastChild === 'string') {
          this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
        } else {
          this.children.push(''.replace(aPattern, aReplacement));
        }
        return this;
      };
      SourceNode.prototype.setSourceContent = function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
        this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
      };
      SourceNode.prototype.walkSourceContents = function SourceNode_walkSourceContents(aFn) {
        for (var i = 0, len = this.children.length; i < len; i++) {
          if (this.children[i] instanceof SourceNode) {
            this.children[i].walkSourceContents(aFn);
          }
        }
        var sources = Object.keys(this.sourceContents);
        for (var i = 0, len = sources.length; i < len; i++) {
          aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
        }
      };
      SourceNode.prototype.toString = function SourceNode_toString() {
        var str = '';
        this.walk(function (chunk) {
          str += chunk;
        });
        return str;
      };
      SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
        var generated = {
            code: '',
            line: 1,
            column: 0
          };
        var map = new SourceMapGenerator(aArgs);
        var sourceMappingActive = false;
        var lastOriginalSource = null;
        var lastOriginalLine = null;
        var lastOriginalColumn = null;
        var lastOriginalName = null;
        this.walk(function (chunk, original) {
          generated.code += chunk;
          if (original.source !== null && original.line !== null && original.column !== null) {
            if (lastOriginalSource !== original.source || lastOriginalLine !== original.line || lastOriginalColumn !== original.column || lastOriginalName !== original.name) {
              map.addMapping({
                source: original.source,
                original: {
                  line: original.line,
                  column: original.column
                },
                generated: {
                  line: generated.line,
                  column: generated.column
                },
                name: original.name
              });
            }
            lastOriginalSource = original.source;
            lastOriginalLine = original.line;
            lastOriginalColumn = original.column;
            lastOriginalName = original.name;
            sourceMappingActive = true;
          } else if (sourceMappingActive) {
            map.addMapping({
              generated: {
                line: generated.line,
                column: generated.column
              }
            });
            lastOriginalSource = null;
            sourceMappingActive = false;
          }
          chunk.split('').forEach(function (ch) {
            if (ch === '\n') {
              generated.line++;
              generated.column = 0;
            } else {
              generated.column++;
            }
          });
        });
        this.walkSourceContents(function (sourceFile, sourceContent) {
          map.setSourceContent(sourceFile, sourceContent);
        });
        return {
          code: generated.code,
          map: map
        };
      };
      exports.SourceNode = SourceNode;
    });
  });
  require.define('/node_modules/source-map/lib/source-map/util.js', function (module, exports, __dirname, __filename) {
    if (typeof define !== 'function') {
      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
    }
    define(function (require, exports, module) {
      function getArg(aArgs, aName, aDefaultValue) {
        if (aName in aArgs) {
          return aArgs[aName];
        } else if (arguments.length === 3) {
          return aDefaultValue;
        } else {
          throw new Error('"' + aName + '" is a required argument.');
        }
      }
      exports.getArg = getArg;
      var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/;
      var dataUrlRegexp = /^data:.+\,.+/;
      function urlParse(aUrl) {
        var match = aUrl.match(urlRegexp);
        if (!match) {
          return null;
        }
        return {
          scheme: match[1],
          auth: match[3],
          host: match[4],
          port: match[6],
          path: match[7]
        };
      }
      exports.urlParse = urlParse;
      function urlGenerate(aParsedUrl) {
        var url = aParsedUrl.scheme + '://';
        if (aParsedUrl.auth) {
          url += aParsedUrl.auth + '@';
        }
        if (aParsedUrl.host) {
          url += aParsedUrl.host;
        }
        if (aParsedUrl.port) {
          url += ':' + aParsedUrl.port;
        }
        if (aParsedUrl.path) {
          url += aParsedUrl.path;
        }
        return url;
      }
      exports.urlGenerate = urlGenerate;
      function join(aRoot, aPath) {
        var url;
        if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) {
          return aPath;
        }
        if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) {
          url.path = aPath;
          return urlGenerate(url);
        }
        return aRoot.replace(/\/$/, '') + '/' + aPath;
      }
      exports.join = join;
      function toSetString(aStr) {
        return '$' + aStr;
      }
      exports.toSetString = toSetString;
      function fromSetString(aStr) {
        return aStr.substr(1);
      }
      exports.fromSetString = fromSetString;
      function relative(aRoot, aPath) {
        aRoot = aRoot.replace(/\/$/, '');
        var url = urlParse(aRoot);
        if (aPath.charAt(0) == '/' && url && url.path == '/') {
          return aPath.slice(1);
        }
        return aPath.indexOf(aRoot + '/') === 0 ? aPath.substr(aRoot.length + 1) : aPath;
      }
      exports.relative = relative;
      function strcmp(aStr1, aStr2) {
        var s1 = aStr1 || '';
        var s2 = aStr2 || '';
        return (s1 > s2) - (s1 < s2);
      }
      function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
        var cmp;
        cmp = strcmp(mappingA.source, mappingB.source);
        if (cmp) {
          return cmp;
        }
        cmp = mappingA.originalLine - mappingB.originalLine;
        if (cmp) {
          return cmp;
        }
        cmp = mappingA.originalColumn - mappingB.originalColumn;
        if (cmp || onlyCompareOriginal) {
          return cmp;
        }
        cmp = strcmp(mappingA.name, mappingB.name);
        if (cmp) {
          return cmp;
        }
        cmp = mappingA.generatedLine - mappingB.generatedLine;
        if (cmp) {
          return cmp;
        }
        return mappingA.generatedColumn - mappingB.generatedColumn;
      }
      ;
      exports.compareByOriginalPositions = compareByOriginalPositions;
      function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) {
        var cmp;
        cmp = mappingA.generatedLine - mappingB.generatedLine;
        if (cmp) {
          return cmp;
        }
        cmp = mappingA.generatedColumn - mappingB.generatedColumn;
        if (cmp || onlyCompareGenerated) {
          return cmp;
        }
        cmp = strcmp(mappingA.source, mappingB.source);
        if (cmp) {
          return cmp;
        }
        cmp = mappingA.originalLine - mappingB.originalLine;
        if (cmp) {
          return cmp;
        }
        cmp = mappingA.originalColumn - mappingB.originalColumn;
        if (cmp) {
          return cmp;
        }
        return strcmp(mappingA.name, mappingB.name);
      }
      ;
      exports.compareByGeneratedPositions = compareByGeneratedPositions;
    });
  });
  require.define('/node_modules/source-map/node_modules/amdefine/amdefine.js', function (module, exports, __dirname, __filename) {
    'use strict';
    function amdefine(module, requireFn) {
      'use strict';
      var defineCache = {}, loaderCache = {}, alreadyCalled = false, path = require('path', module), makeRequire, stringRequire;
      function trimDots(ary) {
        var i, part;
        for (i = 0; ary[i]; i += 1) {
          part = ary[i];
          if (part === '.') {
            ary.splice(i, 1);
            i -= 1;
          } else if (part === '..') {
            if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
              break;
            } else if (i > 0) {
              ary.splice(i - 1, 2);
              i -= 2;
            }
          }
        }
      }
      function normalize(name, baseName) {
        var baseParts;
        if (name && name.charAt(0) === '.') {
          if (baseName) {
            baseParts = baseName.split('/');
            baseParts = baseParts.slice(0, baseParts.length - 1);
            baseParts = baseParts.concat(name.split('/'));
            trimDots(baseParts);
            name = baseParts.join('/');
          }
        }
        return name;
      }
      function makeNormalize(relName) {
        return function (name) {
          return normalize(name, relName);
        };
      }
      function makeLoad(id) {
        function load(value) {
          loaderCache[id] = value;
        }
        load.fromText = function (id, text) {
          throw new Error('amdefine does not implement load.fromText');
        };
        return load;
      }
      makeRequire = function (systemRequire, exports, module, relId) {
        function amdRequire(deps, callback) {
          if (typeof deps === 'string') {
            return stringRequire(systemRequire, exports, module, deps, relId);
          } else {
            deps = deps.map(function (depName) {
              return stringRequire(systemRequire, exports, module, depName, relId);
            });
            process.nextTick(function () {
              callback.apply(null, deps);
            });
          }
        }
        amdRequire.toUrl = function (filePath) {
          if (filePath.indexOf('.') === 0) {
            return normalize(filePath, path.dirname(module.filename));
          } else {
            return filePath;
          }
        };
        return amdRequire;
      };
      requireFn = requireFn || function req() {
        return module.require.apply(module, arguments);
      };
      function runFactory(id, deps, factory) {
        var r, e, m, result;
        if (id) {
          e = loaderCache[id] = {};
          m = {
            id: id,
            uri: __filename,
            exports: e
          };
          r = makeRequire(requireFn, e, m, id);
        } else {
          if (alreadyCalled) {
            throw new Error('amdefine with no module ID cannot be called more than once per file.');
          }
          alreadyCalled = true;
          e = module.exports;
          m = module;
          r = makeRequire(requireFn, e, m, module.id);
        }
        if (deps) {
          deps = deps.map(function (depName) {
            return r(depName);
          });
        }
        if (typeof factory === 'function') {
          result = factory.apply(m.exports, deps);
        } else {
          result = factory;
        }
        if (result !== undefined) {
          m.exports = result;
          if (id) {
            loaderCache[id] = m.exports;
          }
        }
      }
      stringRequire = function (systemRequire, exports, module, id, relId) {
        var index = id.indexOf('!'), originalId = id, prefix, plugin;
        if (index === -1) {
          id = normalize(id, relId);
          if (id === 'require') {
            return makeRequire(systemRequire, exports, module, relId);
          } else if (id === 'exports') {
            return exports;
          } else if (id === 'module') {
            return module;
          } else if (loaderCache.hasOwnProperty(id)) {
            return loaderCache[id];
          } else if (defineCache[id]) {
            runFactory.apply(null, defineCache[id]);
            return loaderCache[id];
          } else {
            if (systemRequire) {
              return systemRequire(originalId);
            } else {
              throw new Error('No module with ID: ' + id);
            }
          }
        } else {
          prefix = id.substring(0, index);
          id = id.substring(index + 1, id.length);
          plugin = stringRequire(systemRequire, exports, module, prefix, relId);
          if (plugin.normalize) {
            id = plugin.normalize(id, makeNormalize(relId));
          } else {
            id = normalize(id, relId);
          }
          if (loaderCache[id]) {
            return loaderCache[id];
          } else {
            plugin.load(id, makeRequire(systemRequire, exports, module, relId), makeLoad(id), {});
            return loaderCache[id];
          }
        }
      };
      function define(id, deps, factory) {
        if (Array.isArray(id)) {
          factory = deps;
          deps = id;
          id = undefined;
        } else if (typeof id !== 'string') {
          factory = id;
          id = deps = undefined;
        }
        if (deps && !Array.isArray(deps)) {
          factory = deps;
          deps = undefined;
        }
        if (!deps) {
          deps = [
            'require',
            'exports',
            'module'
          ];
        }
        if (id) {
          defineCache[id] = [
            id,
            deps,
            factory
          ];
        } else {
          runFactory(id, deps, factory);
        }
      }
      define.require = function (id) {
        if (loaderCache[id]) {
          return loaderCache[id];
        }
        if (defineCache[id]) {
          runFactory.apply(null, defineCache[id]);
          return loaderCache[id];
        }
      };
      define.amd = {};
      return define;
    }
    module.exports = amdefine;
  });
  require.define('/node_modules/source-map/lib/source-map/source-map-generator.js', function (module, exports, __dirname, __filename) {
    if (typeof define !== 'function') {
      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
    }
    define(function (require, exports, module) {
      var base64VLQ = require('/node_modules/source-map/lib/source-map/base64-vlq.js', module);
      var util = require('/node_modules/source-map/lib/source-map/util.js', module);
      var ArraySet = require('/node_modules/source-map/lib/source-map/array-set.js', module).ArraySet;
      function SourceMapGenerator(aArgs) {
        this._file = util.getArg(aArgs, 'file');
        this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
        this._sources = new ArraySet;
        this._names = new ArraySet;
        this._mappings = [];
        this._sourcesContents = null;
      }
      SourceMapGenerator.prototype._version = 3;
      SourceMapGenerator.fromSourceMap = function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
        var sourceRoot = aSourceMapConsumer.sourceRoot;
        var generator = new SourceMapGenerator({
            file: aSourceMapConsumer.file,
            sourceRoot: sourceRoot
          });
        aSourceMapConsumer.eachMapping(function (mapping) {
          var newMapping = {
              generated: {
                line: mapping.generatedLine,
                column: mapping.generatedColumn
              }
            };
          if (mapping.source) {
            newMapping.source = mapping.source;
            if (sourceRoot) {
              newMapping.source = util.relative(sourceRoot, newMapping.source);
            }
            newMapping.original = {
              line: mapping.originalLine,
              column: mapping.originalColumn
            };
            if (mapping.name) {
              newMapping.name = mapping.name;
            }
          }
          generator.addMapping(newMapping);
        });
        aSourceMapConsumer.sources.forEach(function (sourceFile) {
          var content = aSourceMapConsumer.sourceContentFor(sourceFile);
          if (content) {
            generator.setSourceContent(sourceFile, content);
          }
        });
        return generator;
      };
      SourceMapGenerator.prototype.addMapping = function SourceMapGenerator_addMapping(aArgs) {
        var generated = util.getArg(aArgs, 'generated');
        var original = util.getArg(aArgs, 'original', null);
        var source = util.getArg(aArgs, 'source', null);
        var name = util.getArg(aArgs, 'name', null);
        this._validateMapping(generated, original, source, name);
        if (source && !this._sources.has(source)) {
          this._sources.add(source);
        }
        if (name && !this._names.has(name)) {
          this._names.add(name);
        }
        this._mappings.push({
          generatedLine: generated.line,
          generatedColumn: generated.column,
          originalLine: original != null && original.line,
          originalColumn: original != null && original.column,
          source: source,
          name: name
        });
      };
      SourceMapGenerator.prototype.setSourceContent = function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
        var source = aSourceFile;
        if (this._sourceRoot) {
          source = util.relative(this._sourceRoot, source);
        }
        if (aSourceContent !== null) {
          if (!this._sourcesContents) {
            this._sourcesContents = {};
          }
          this._sourcesContents[util.toSetString(source)] = aSourceContent;
        } else {
          delete this._sourcesContents[util.toSetString(source)];
          if (Object.keys(this._sourcesContents).length === 0) {
            this._sourcesContents = null;
          }
        }
      };
      SourceMapGenerator.prototype.applySourceMap = function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) {
        if (!aSourceFile) {
          aSourceFile = aSourceMapConsumer.file;
        }
        var sourceRoot = this._sourceRoot;
        if (sourceRoot) {
          aSourceFile = util.relative(sourceRoot, aSourceFile);
        }
        var newSources = new ArraySet;
        var newNames = new ArraySet;
        this._mappings.forEach(function (mapping) {
          if (mapping.source === aSourceFile && mapping.originalLine) {
            var original = aSourceMapConsumer.originalPositionFor({
                line: mapping.originalLine,
                column: mapping.originalColumn
              });
            if (original.source !== null) {
              if (sourceRoot) {
                mapping.source = util.relative(sourceRoot, original.source);
              } else {
                mapping.source = original.source;
              }
              mapping.originalLine = original.line;
              mapping.originalColumn = original.column;
              if (original.name !== null && mapping.name !== null) {
                mapping.name = original.name;
              }
            }
          }
          var source = mapping.source;
          if (source && !newSources.has(source)) {
            newSources.add(source);
          }
          var name = mapping.name;
          if (name && !newNames.has(name)) {
            newNames.add(name);
          }
        }, this);
        this._sources = newSources;
        this._names = newNames;
        aSourceMapConsumer.sources.forEach(function (sourceFile) {
          var content = aSourceMapConsumer.sourceContentFor(sourceFile);
          if (content) {
            if (sourceRoot) {
              sourceFile = util.relative(sourceRoot, sourceFile);
            }
            this.setSourceContent(sourceFile, content);
          }
        }, this);
      };
      SourceMapGenerator.prototype._validateMapping = function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, aName) {
        if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aGenerated.line > 0 && aGenerated.column >= 0 && !aOriginal && !aSource && !aName) {
          return;
        } else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aOriginal && 'line' in aOriginal && 'column' in aOriginal && aGenerated.line > 0 && aGenerated.column >= 0 && aOriginal.line > 0 && aOriginal.column >= 0 && aSource) {
          return;
        } else {
          throw new Error('Invalid mapping: ' + JSON.stringify({
            generated: aGenerated,
            source: aSource,
            orginal: aOriginal,
            name: aName
          }));
        }
      };
      SourceMapGenerator.prototype._serializeMappings = function SourceMapGenerator_serializeMappings() {
        var previousGeneratedColumn = 0;
        var previousGeneratedLine = 1;
        var previousOriginalColumn = 0;
        var previousOriginalLine = 0;
        var previousName = 0;
        var previousSource = 0;
        var result = '';
        var mapping;
        this._mappings.sort(util.compareByGeneratedPositions);
        for (var i = 0, len = this._mappings.length; i < len; i++) {
          mapping = this._mappings[i];
          if (mapping.generatedLine !== previousGeneratedLine) {
            previousGeneratedColumn = 0;
            while (mapping.generatedLine !== previousGeneratedLine) {
              result += ';';
              previousGeneratedLine++;
            }
          } else {
            if (i > 0) {
              if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) {
                continue;
              }
              result += ',';
            }
          }
          result += base64VLQ.encode(mapping.generatedColumn - previousGeneratedColumn);
          previousGeneratedColumn = mapping.generatedColumn;
          if (mapping.source) {
            result += base64VLQ.encode(this._sources.indexOf(mapping.source) - previousSource);
            previousSource = this._sources.indexOf(mapping.source);
            result += base64VLQ.encode(mapping.originalLine - 1 - previousOriginalLine);
            previousOriginalLine = mapping.originalLine - 1;
            result += base64VLQ.encode(mapping.originalColumn - previousOriginalColumn);
            previousOriginalColumn = mapping.originalColumn;
            if (mapping.name) {
              result += base64VLQ.encode(this._names.indexOf(mapping.name) - previousName);
              previousName = this._names.indexOf(mapping.name);
            }
          }
        }
        return result;
      };
      SourceMapGenerator.prototype._generateSourcesContent = function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
        return aSources.map(function (source) {
          if (!this._sourcesContents) {
            return null;
          }
          if (aSourceRoot) {
            source = util.relative(aSourceRoot, source);
          }
          var key = util.toSetString(source);
          return Object.prototype.hasOwnProperty.call(this._sourcesContents, key) ? this._sourcesContents[key] : null;
        }, this);
      };
      SourceMapGenerator.prototype.toJSON = function SourceMapGenerator_toJSON() {
        var map = {
            version: this._version,
            file: this._file,
            sources: this._sources.toArray(),
            names: this._names.toArray(),
            mappings: this._serializeMappings()
          };
        if (this._sourceRoot) {
          map.sourceRoot = this._sourceRoot;
        }
        if (this._sourcesContents) {
          map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
        }
        return map;
      };
      SourceMapGenerator.prototype.toString = function SourceMapGenerator_toString() {
        return JSON.stringify(this);
      };
      exports.SourceMapGenerator = SourceMapGenerator;
    });
  });
  require.define('/node_modules/source-map/lib/source-map/array-set.js', function (module, exports, __dirname, __filename) {
    if (typeof define !== 'function') {
      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
    }
    define(function (require, exports, module) {
      var util = require('/node_modules/source-map/lib/source-map/util.js', module);
      function ArraySet() {
        this._array = [];
        this._set = {};
      }
      ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
        var set = new ArraySet;
        for (var i = 0, len = aArray.length; i < len; i++) {
          set.add(aArray[i], aAllowDuplicates);
        }
        return set;
      };
      ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
        var isDuplicate = this.has(aStr);
        var idx = this._array.length;
        if (!isDuplicate || aAllowDuplicates) {
          this._array.push(aStr);
        }
        if (!isDuplicate) {
          this._set[util.toSetString(aStr)] = idx;
        }
      };
      ArraySet.prototype.has = function ArraySet_has(aStr) {
        return Object.prototype.hasOwnProperty.call(this._set, util.toSetString(aStr));
      };
      ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
        if (this.has(aStr)) {
          return this._set[util.toSetString(aStr)];
        }
        throw new Error('"' + aStr + '" is not in the set.');
      };
      ArraySet.prototype.at = function ArraySet_at(aIdx) {
        if (aIdx >= 0 && aIdx < this._array.length) {
          return this._array[aIdx];
        }
        throw new Error('No element indexed by ' + aIdx);
      };
      ArraySet.prototype.toArray = function ArraySet_toArray() {
        return this._array.slice();
      };
      exports.ArraySet = ArraySet;
    });
  });
  require.define('/node_modules/source-map/lib/source-map/base64-vlq.js', function (module, exports, __dirname, __filename) {
    if (typeof define !== 'function') {
      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
    }
    define(function (require, exports, module) {
      var base64 = require('/node_modules/source-map/lib/source-map/base64.js', module);
      var VLQ_BASE_SHIFT = 5;
      var VLQ_BASE = 1 << VLQ_BASE_SHIFT;
      var VLQ_BASE_MASK = VLQ_BASE - 1;
      var VLQ_CONTINUATION_BIT = VLQ_BASE;
      function toVLQSigned(aValue) {
        return aValue < 0 ? (-aValue << 1) + 1 : (aValue << 1) + 0;
      }
      function fromVLQSigned(aValue) {
        var isNegative = (aValue & 1) === 1;
        var shifted = aValue >> 1;
        return isNegative ? -shifted : shifted;
      }
      exports.encode = function base64VLQ_encode(aValue) {
        var encoded = '';
        var digit;
        var vlq = toVLQSigned(aValue);
        do {
          digit = vlq & VLQ_BASE_MASK;
          vlq >>>= VLQ_BASE_SHIFT;
          if (vlq > 0) {
            digit |= VLQ_CONTINUATION_BIT;
          }
          encoded += base64.encode(digit);
        } while (vlq > 0);
        return encoded;
      };
      exports.decode = function base64VLQ_decode(aStr) {
        var i = 0;
        var strLen = aStr.length;
        var result = 0;
        var shift = 0;
        var continuation, digit;
        do {
          if (i >= strLen) {
            throw new Error('Expected more digits in base 64 VLQ value.');
          }
          digit = base64.decode(aStr.charAt(i++));
          continuation = !!(digit & VLQ_CONTINUATION_BIT);
          digit &= VLQ_BASE_MASK;
          result = result + (digit << shift);
          shift += VLQ_BASE_SHIFT;
        } while (continuation);
        return {
          value: fromVLQSigned(result),
          rest: aStr.slice(i)
        };
      };
    });
  });
  require.define('/node_modules/source-map/lib/source-map/base64.js', function (module, exports, __dirname, __filename) {
    if (typeof define !== 'function') {
      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
    }
    define(function (require, exports, module) {
      var charToIntMap = {};
      var intToCharMap = {};
      'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('').forEach(function (ch, index) {
        charToIntMap[ch] = index;
        intToCharMap[index] = ch;
      });
      exports.encode = function base64_encode(aNumber) {
        if (aNumber in intToCharMap) {
          return intToCharMap[aNumber];
        }
        throw new TypeError('Must be between 0 and 63: ' + aNumber);
      };
      exports.decode = function base64_decode(aChar) {
        if (aChar in charToIntMap) {
          return charToIntMap[aChar];
        }
        throw new TypeError('Not a valid base 64 digit: ' + aChar);
      };
    });
  });
  require.define('/node_modules/source-map/lib/source-map/source-map-consumer.js', function (module, exports, __dirname, __filename) {
    if (typeof define !== 'function') {
      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
    }
    define(function (require, exports, module) {
      var util = require('/node_modules/source-map/lib/source-map/util.js', module);
      var binarySearch = require('/node_modules/source-map/lib/source-map/binary-search.js', module);
      var ArraySet = require('/node_modules/source-map/lib/source-map/array-set.js', module).ArraySet;
      var base64VLQ = require('/node_modules/source-map/lib/source-map/base64-vlq.js', module);
      function SourceMapConsumer(aSourceMap) {
        var sourceMap = aSourceMap;
        if (typeof aSourceMap === 'string') {
          sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
        }
        var version = util.getArg(sourceMap, 'version');
        var sources = util.getArg(sourceMap, 'sources');
        var names = util.getArg(sourceMap, 'names', []);
        var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
        var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
        var mappings = util.getArg(sourceMap, 'mappings');
        var file = util.getArg(sourceMap, 'file', null);
        if (version != this._version) {
          throw new Error('Unsupported version: ' + version);
        }
        this._names = ArraySet.fromArray(names, true);
        this._sources = ArraySet.fromArray(sources, true);
        this.sourceRoot = sourceRoot;
        this.sourcesContent = sourcesContent;
        this._mappings = mappings;
        this.file = file;
      }
      SourceMapConsumer.fromSourceMap = function SourceMapConsumer_fromSourceMap(aSourceMap) {
        var smc = Object.create(SourceMapConsumer.prototype);
        smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
        smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
        smc.sourceRoot = aSourceMap._sourceRoot;
        smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), smc.sourceRoot);
        smc.file = aSourceMap._file;
        smc.__generatedMappings = aSourceMap._mappings.slice().sort(util.compareByGeneratedPositions);
        smc.__originalMappings = aSourceMap._mappings.slice().sort(util.compareByOriginalPositions);
        return smc;
      };
      SourceMapConsumer.prototype._version = 3;
      Object.defineProperty(SourceMapConsumer.prototype, 'sources', {
        get: function () {
          return this._sources.toArray().map(function (s) {
            return this.sourceRoot ? util.join(this.sourceRoot, s) : s;
          }, this);
        }
      });
      SourceMapConsumer.prototype.__generatedMappings = null;
      Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {
        get: function () {
          if (!this.__generatedMappings) {
            this.__generatedMappings = [];
            this.__originalMappings = [];
            this._parseMappings(this._mappings, this.sourceRoot);
          }
          return this.__generatedMappings;
        }
      });
      SourceMapConsumer.prototype.__originalMappings = null;
      Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {
        get: function () {
          if (!this.__originalMappings) {
            this.__generatedMappings = [];
            this.__originalMappings = [];
            this._parseMappings(this._mappings, this.sourceRoot);
          }
          return this.__originalMappings;
        }
      });
      SourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
        var generatedLine = 1;
        var previousGeneratedColumn = 0;
        var previousOriginalLine = 0;
        var previousOriginalColumn = 0;
        var previousSource = 0;
        var previousName = 0;
        var mappingSeparator = /^[,;]/;
        var str = aStr;
        var mapping;
        var temp;
        while (str.length > 0) {
          if (str.charAt(0) === ';') {
            generatedLine++;
            str = str.slice(1);
            previousGeneratedColumn = 0;
          } else if (str.charAt(0) === ',') {
            str = str.slice(1);
          } else {
            mapping = {};
            mapping.generatedLine = generatedLine;
            temp = base64VLQ.decode(str);
            mapping.generatedColumn = previousGeneratedColumn + temp.value;
            previousGeneratedColumn = mapping.generatedColumn;
            str = temp.rest;
            if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {
              temp = base64VLQ.decode(str);
              mapping.source = this._sources.at(previousSource + temp.value);
              previousSource += temp.value;
              str = temp.rest;
              if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {
                throw new Error('Found a source, but no line and column');
              }
              temp = base64VLQ.decode(str);
              mapping.originalLine = previousOriginalLine + temp.value;
              previousOriginalLine = mapping.originalLine;
              mapping.originalLine += 1;
              str = temp.rest;
              if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {
                throw new Error('Found a source and line, but no column');
              }
              temp = base64VLQ.decode(str);
              mapping.originalColumn = previousOriginalColumn + temp.value;
              previousOriginalColumn = mapping.originalColumn;
              str = temp.rest;
              if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {
                temp = base64VLQ.decode(str);
                mapping.name = this._names.at(previousName + temp.value);
                previousName += temp.value;
                str = temp.rest;
              }
            }
            this.__generatedMappings.push(mapping);
            if (typeof mapping.originalLine === 'number') {
              this.__originalMappings.push(mapping);
            }
          }
        }
        this.__originalMappings.sort(util.compareByOriginalPositions);
      };
      SourceMapConsumer.prototype._findMapping = function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, aColumnName, aComparator) {
        if (aNeedle[aLineName] <= 0) {
          throw new TypeError('Line must be greater than or equal to 1, got ' + aNeedle[aLineName]);
        }
        if (aNeedle[aColumnName] < 0) {
          throw new TypeError('Column must be greater than or equal to 0, got ' + aNeedle[aColumnName]);
        }
        return binarySearch.search(aNeedle, aMappings, aComparator);
      };
      SourceMapConsumer.prototype.originalPositionFor = function SourceMapConsumer_originalPositionFor(aArgs) {
        var needle = {
            generatedLine: util.getArg(aArgs, 'line'),
            generatedColumn: util.getArg(aArgs, 'column')
          };
        var mapping = this._findMapping(needle, this._generatedMappings, 'generatedLine', 'generatedColumn', util.compareByGeneratedPositions);
        if (mapping) {
          var source = util.getArg(mapping, 'source', null);
          if (source && this.sourceRoot) {
            source = util.join(this.sourceRoot, source);
          }
          return {
            source: source,
            line: util.getArg(mapping, 'originalLine', null),
            column: util.getArg(mapping, 'originalColumn', null),
            name: util.getArg(mapping, 'name', null)
          };
        }
        return {
          source: null,
          line: null,
          column: null,
          name: null
        };
      };
      SourceMapConsumer.prototype.sourceContentFor = function SourceMapConsumer_sourceContentFor(aSource) {
        if (!this.sourcesContent) {
          return null;
        }
        if (this.sourceRoot) {
          aSource = util.relative(this.sourceRoot, aSource);
        }
        if (this._sources.has(aSource)) {
          return this.sourcesContent[this._sources.indexOf(aSource)];
        }
        var url;
        if (this.sourceRoot && (url = util.urlParse(this.sourceRoot))) {
          var fileUriAbsPath = aSource.replace(/^file:\/\//, '');
          if (url.scheme == 'file' && this._sources.has(fileUriAbsPath)) {
            return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)];
          }
          if ((!url.path || url.path == '/') && this._sources.has('/' + aSource)) {
            return this.sourcesContent[this._sources.indexOf('/' + aSource)];
          }
        }
        throw new Error('"' + aSource + '" is not in the SourceMap.');
      };
      SourceMapConsumer.prototype.generatedPositionFor = function SourceMapConsumer_generatedPositionFor(aArgs) {
        var needle = {
            source: util.getArg(aArgs, 'source'),
            originalLine: util.getArg(aArgs, 'line'),
            originalColumn: util.getArg(aArgs, 'column')
          };
        if (this.sourceRoot) {
          needle.source = util.relative(this.sourceRoot, needle.source);
        }
        var mapping = this._findMapping(needle, this._originalMappings, 'originalLine', 'originalColumn', util.compareByOriginalPositions);
        if (mapping) {
          return {
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null)
          };
        }
        return {
          line: null,
          column: null
        };
      };
      SourceMapConsumer.GENERATED_ORDER = 1;
      SourceMapConsumer.ORIGINAL_ORDER = 2;
      SourceMapConsumer.prototype.eachMapping = function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
        var context = aContext || null;
        var order = aOrder || SourceMapConsumer.GENERATED_ORDER;
        var mappings;
        switch (order) {
        case SourceMapConsumer.GENERATED_ORDER:
          mappings = this._generatedMappings;
          break;
        case SourceMapConsumer.ORIGINAL_ORDER:
          mappings = this._originalMappings;
          break;
        default:
          throw new Error('Unknown order of iteration.');
        }
        var sourceRoot = this.sourceRoot;
        mappings.map(function (mapping) {
          var source = mapping.source;
          if (source && sourceRoot) {
            source = util.join(sourceRoot, source);
          }
          return {
            source: source,
            generatedLine: mapping.generatedLine,
            generatedColumn: mapping.generatedColumn,
            originalLine: mapping.originalLine,
            originalColumn: mapping.originalColumn,
            name: mapping.name
          };
        }).forEach(aCallback, context);
      };
      exports.SourceMapConsumer = SourceMapConsumer;
    });
  });
  require.define('/node_modules/source-map/lib/source-map/binary-search.js', function (module, exports, __dirname, __filename) {
    if (typeof define !== 'function') {
      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
    }
    define(function (require, exports, module) {
      function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) {
        var mid = Math.floor((aHigh - aLow) / 2) + aLow;
        var cmp = aCompare(aNeedle, aHaystack[mid], true);
        if (cmp === 0) {
          return aHaystack[mid];
        } else if (cmp > 0) {
          if (aHigh - mid > 1) {
            return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare);
          }
          return aHaystack[mid];
        } else {
          if (mid - aLow > 1) {
            return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare);
          }
          return aLow < 0 ? null : aHaystack[aLow];
        }
      }
      exports.search = function search(aNeedle, aHaystack, aCompare) {
        return aHaystack.length > 0 ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) : null;
      };
    });
  });
  require.define('/node_modules/esutils/lib/utils.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      exports.code = require('/node_modules/esutils/lib/code.js', module);
      exports.keyword = require('/node_modules/esutils/lib/keyword.js', module);
    }());
  });
  require.define('/node_modules/esutils/lib/keyword.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      var code = require('/node_modules/esutils/lib/code.js', module);
      function isStrictModeReservedWordES6(id) {
        switch (id) {
        case 'implements':
        case 'interface':
        case 'package':
        case 'private':
        case 'protected':
        case 'public':
        case 'static':
        case 'let':
          return true;
        default:
          return false;
        }
      }
      function isKeywordES5(id, strict) {
        if (!strict && id === 'yield') {
          return false;
        }
        return isKeywordES6(id, strict);
      }
      function isKeywordES6(id, strict) {
        if (strict && isStrictModeReservedWordES6(id)) {
          return true;
        }
        switch (id.length) {
        case 2:
          return id === 'if' || id === 'in' || id === 'do';
        case 3:
          return id === 'var' || id === 'for' || id === 'new' || id === 'try';
        case 4:
          return id === 'this' || id === 'else' || id === 'case' || id === 'void' || id === 'with' || id === 'enum';
        case 5:
          return id === 'while' || id === 'break' || id === 'catch' || id === 'throw' || id === 'const' || id === 'yield' || id === 'class' || id === 'super';
        case 6:
          return id === 'return' || id === 'typeof' || id === 'delete' || id === 'switch' || id === 'export' || id === 'import';
        case 7:
          return id === 'default' || id === 'finally' || id === 'extends';
        case 8:
          return id === 'function' || id === 'continue' || id === 'debugger';
        case 10:
          return id === 'instanceof';
        default:
          return false;
        }
      }
      function isRestrictedWord(id) {
        return id === 'eval' || id === 'arguments';
      }
      function isIdentifierName(id) {
        var i, iz, ch;
        if (id.length === 0) {
          return false;
        }
        ch = id.charCodeAt(0);
        if (!code.isIdentifierStart(ch) || ch === 92) {
          return false;
        }
        for (i = 1, iz = id.length; i < iz; ++i) {
          ch = id.charCodeAt(i);
          if (!code.isIdentifierPart(ch) || ch === 92) {
            return false;
          }
        }
        return true;
      }
      module.exports = {
        isKeywordES5: isKeywordES5,
        isKeywordES6: isKeywordES6,
        isRestrictedWord: isRestrictedWord,
        isIdentifierName: isIdentifierName
      };
    }());
  });
  require.define('/node_modules/esutils/lib/code.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      var Regex;
      Regex = {
        NonAsciiIdentifierStart: new RegExp('[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F0\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]'),
        NonAsciiIdentifierPart: new 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\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]')
      };
      function isDecimalDigit(ch) {
        return ch >= 48 && ch <= 57;
      }
      function isHexDigit(ch) {
        return isDecimalDigit(ch) || 97 <= ch && ch <= 102 || 65 <= ch && ch <= 70;
      }
      function isOctalDigit(ch) {
        return ch >= 48 && ch <= 55;
      }
      function isWhiteSpace(ch) {
        return ch === 32 || ch === 9 || ch === 11 || ch === 12 || ch === 160 || ch >= 5760 && [
          5760,
          6158,
          8192,
          8193,
          8194,
          8195,
          8196,
          8197,
          8198,
          8199,
          8200,
          8201,
          8202,
          8239,
          8287,
          12288,
          65279
        ].indexOf(ch) >= 0;
      }
      function isLineTerminator(ch) {
        return ch === 10 || ch === 13 || ch === 8232 || ch === 8233;
      }
      function isIdentifierStart(ch) {
        return ch === 36 || ch === 95 || ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 || ch === 92 || ch >= 128 && Regex.NonAsciiIdentifierStart.test(String.fromCharCode(ch));
      }
      function isIdentifierPart(ch) {
        return ch === 36 || ch === 95 || ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 || ch >= 48 && ch <= 57 || ch === 92 || ch >= 128 && Regex.NonAsciiIdentifierPart.test(String.fromCharCode(ch));
      }
      module.exports = {
        isDecimalDigit: isDecimalDigit,
        isHexDigit: isHexDigit,
        isOctalDigit: isOctalDigit,
        isWhiteSpace: isWhiteSpace,
        isLineTerminator: isLineTerminator,
        isIdentifierStart: isIdentifierStart,
        isIdentifierPart: isIdentifierPart
      };
    }());
  });
  require.define('/node_modules/estraverse/estraverse.js', function (module, exports, __dirname, __filename) {
    (function (root, factory) {
      'use strict';
      if (typeof define === 'function' && define.amd) {
        define(['exports'], factory);
      } else if (typeof exports !== 'undefined') {
        factory(exports);
      } else {
        factory(root.estraverse = {});
      }
    }(this, function (exports) {
      'use strict';
      var Syntax, isArray, VisitorOption, VisitorKeys, BREAK, SKIP;
      Syntax = {
        AssignmentExpression: 'AssignmentExpression',
        ArrayExpression: 'ArrayExpression',
        ArrayPattern: 'ArrayPattern',
        ArrowFunctionExpression: 'ArrowFunctionExpression',
        BlockStatement: 'BlockStatement',
        BinaryExpression: 'BinaryExpression',
        BreakStatement: 'BreakStatement',
        CallExpression: 'CallExpression',
        CatchClause: 'CatchClause',
        ClassBody: 'ClassBody',
        ClassDeclaration: 'ClassDeclaration',
        ClassExpression: 'ClassExpression',
        ConditionalExpression: 'ConditionalExpression',
        ContinueStatement: 'ContinueStatement',
        DebuggerStatement: 'DebuggerStatement',
        DirectiveStatement: 'DirectiveStatement',
        DoWhileStatement: 'DoWhileStatement',
        EmptyStatement: 'EmptyStatement',
        ExpressionStatement: 'ExpressionStatement',
        ForStatement: 'ForStatement',
        ForInStatement: 'ForInStatement',
        FunctionDeclaration: 'FunctionDeclaration',
        FunctionExpression: 'FunctionExpression',
        Identifier: 'Identifier',
        IfStatement: 'IfStatement',
        Literal: 'Literal',
        LabeledStatement: 'LabeledStatement',
        LogicalExpression: 'LogicalExpression',
        MemberExpression: 'MemberExpression',
        MethodDefinition: 'MethodDefinition',
        NewExpression: 'NewExpression',
        ObjectExpression: 'ObjectExpression',
        ObjectPattern: 'ObjectPattern',
        Program: 'Program',
        Property: 'Property',
        ReturnStatement: 'ReturnStatement',
        SequenceExpression: 'SequenceExpression',
        SwitchStatement: 'SwitchStatement',
        SwitchCase: 'SwitchCase',
        ThisExpression: 'ThisExpression',
        ThrowStatement: 'ThrowStatement',
        TryStatement: 'TryStatement',
        UnaryExpression: 'UnaryExpression',
        UpdateExpression: 'UpdateExpression',
        VariableDeclaration: 'VariableDeclaration',
        VariableDeclarator: 'VariableDeclarator',
        WhileStatement: 'WhileStatement',
        WithStatement: 'WithStatement',
        YieldExpression: 'YieldExpression'
      };
      function ignoreJSHintError() {
      }
      isArray = Array.isArray;
      if (!isArray) {
        isArray = function isArray(array) {
          return Object.prototype.toString.call(array) === '[object Array]';
        };
      }
      function deepCopy(obj) {
        var ret = {}, key, val;
        for (key in obj) {
          if (obj.hasOwnProperty(key)) {
            val = obj[key];
            if (typeof val === 'object' && val !== null) {
              ret[key] = deepCopy(val);
            } else {
              ret[key] = val;
            }
          }
        }
        return ret;
      }
      function shallowCopy(obj) {
        var ret = {}, key;
        for (key in obj) {
          if (obj.hasOwnProperty(key)) {
            ret[key] = obj[key];
          }
        }
        return ret;
      }
      ignoreJSHintError(shallowCopy);
      function upperBound(array, func) {
        var diff, len, i, current;
        len = array.length;
        i = 0;
        while (len) {
          diff = len >>> 1;
          current = i + diff;
          if (func(array[current])) {
            len = diff;
          } else {
            i = current + 1;
            len -= diff + 1;
          }
        }
        return i;
      }
      function lowerBound(array, func) {
        var diff, len, i, current;
        len = array.length;
        i = 0;
        while (len) {
          diff = len >>> 1;
          current = i + diff;
          if (func(array[current])) {
            i = current + 1;
            len -= diff + 1;
          } else {
            len = diff;
          }
        }
        return i;
      }
      ignoreJSHintError(lowerBound);
      VisitorKeys = {
        AssignmentExpression: [
          'left',
          'right'
        ],
        ArrayExpression: ['elements'],
        ArrayPattern: ['elements'],
        ArrowFunctionExpression: [
          'params',
          'defaults',
          'rest',
          'body'
        ],
        BlockStatement: ['body'],
        BinaryExpression: [
          'left',
          'right'
        ],
        BreakStatement: ['label'],
        CallExpression: [
          'callee',
          'arguments'
        ],
        CatchClause: [
          'param',
          'body'
        ],
        ClassBody: ['body'],
        ClassDeclaration: [
          'id',
          'body',
          'superClass'
        ],
        ClassExpression: [
          'id',
          'body',
          'superClass'
        ],
        ConditionalExpression: [
          'test',
          'consequent',
          'alternate'
        ],
        ContinueStatement: ['label'],
        DebuggerStatement: [],
        DirectiveStatement: [],
        DoWhileStatement: [
          'body',
          'test'
        ],
        EmptyStatement: [],
        ExpressionStatement: ['expression'],
        ForStatement: [
          'init',
          'test',
          'update',
          'body'
        ],
        ForInStatement: [
          'left',
          'right',
          'body'
        ],
        FunctionDeclaration: [
          'id',
          'params',
          'defaults',
          'rest',
          'body'
        ],
        FunctionExpression: [
          'id',
          'params',
          'defaults',
          'rest',
          'body'
        ],
        Identifier: [],
        IfStatement: [
          'test',
          'consequent',
          'alternate'
        ],
        Literal: [],
        LabeledStatement: [
          'label',
          'body'
        ],
        LogicalExpression: [
          'left',
          'right'
        ],
        MemberExpression: [
          'object',
          'property'
        ],
        MethodDefinition: [
          'key',
          'value'
        ],
        NewExpression: [
          'callee',
          'arguments'
        ],
        ObjectExpression: ['properties'],
        ObjectPattern: ['properties'],
        Program: ['body'],
        Property: [
          'key',
          'value'
        ],
        ReturnStatement: ['argument'],
        SequenceExpression: ['expressions'],
        SwitchStatement: [
          'discriminant',
          'cases'
        ],
        SwitchCase: [
          'test',
          'consequent'
        ],
        ThisExpression: [],
        ThrowStatement: ['argument'],
        TryStatement: [
          'block',
          'handlers',
          'handler',
          'guardedHandlers',
          'finalizer'
        ],
        UnaryExpression: ['argument'],
        UpdateExpression: ['argument'],
        VariableDeclaration: ['declarations'],
        VariableDeclarator: [
          'id',
          'init'
        ],
        WhileStatement: [
          'test',
          'body'
        ],
        WithStatement: [
          'object',
          'body'
        ],
        YieldExpression: ['argument']
      };
      BREAK = {};
      SKIP = {};
      VisitorOption = {
        Break: BREAK,
        Skip: SKIP
      };
      function Reference(parent, key) {
        this.parent = parent;
        this.key = key;
      }
      Reference.prototype.replace = function replace(node) {
        this.parent[this.key] = node;
      };
      function Element(node, path, wrap, ref) {
        this.node = node;
        this.path = path;
        this.wrap = wrap;
        this.ref = ref;
      }
      function Controller() {
      }
      Controller.prototype.path = function path() {
        var i, iz, j, jz, result, element;
        function addToPath(result, path) {
          if (isArray(path)) {
            for (j = 0, jz = path.length; j < jz; ++j) {
              result.push(path[j]);
            }
          } else {
            result.push(path);
          }
        }
        if (!this.__current.path) {
          return null;
        }
        result = [];
        for (i = 2, iz = this.__leavelist.length; i < iz; ++i) {
          element = this.__leavelist[i];
          addToPath(result, element.path);
        }
        addToPath(result, this.__current.path);
        return result;
      };
      Controller.prototype.parents = function parents() {
        var i, iz, result;
        result = [];
        for (i = 1, iz = this.__leavelist.length; i < iz; ++i) {
          result.push(this.__leavelist[i].node);
        }
        return result;
      };
      Controller.prototype.current = function current() {
        return this.__current.node;
      };
      Controller.prototype.__execute = function __execute(callback, element) {
        var previous, result;
        result = undefined;
        previous = this.__current;
        this.__current = element;
        this.__state = null;
        if (callback) {
          result = callback.call(this, element.node, this.__leavelist[this.__leavelist.length - 1].node);
        }
        this.__current = previous;
        return result;
      };
      Controller.prototype.notify = function notify(flag) {
        this.__state = flag;
      };
      Controller.prototype.skip = function () {
        this.notify(SKIP);
      };
      Controller.prototype['break'] = function () {
        this.notify(BREAK);
      };
      Controller.prototype.__initialize = function (root, visitor) {
        this.visitor = visitor;
        this.root = root;
        this.__worklist = [];
        this.__leavelist = [];
        this.__current = null;
        this.__state = null;
      };
      Controller.prototype.traverse = function traverse(root, visitor) {
        var worklist, leavelist, element, node, nodeType, ret, key, current, current2, candidates, candidate, sentinel;
        this.__initialize(root, visitor);
        sentinel = {};
        worklist = this.__worklist;
        leavelist = this.__leavelist;
        worklist.push(new Element(root, null, null, null));
        leavelist.push(new Element(null, null, null, null));
        while (worklist.length) {
          element = worklist.pop();
          if (element === sentinel) {
            element = leavelist.pop();
            ret = this.__execute(visitor.leave, element);
            if (this.__state === BREAK || ret === BREAK) {
              return;
            }
            continue;
          }
          if (element.node) {
            ret = this.__execute(visitor.enter, element);
            if (this.__state === BREAK || ret === BREAK) {
              return;
            }
            worklist.push(sentinel);
            leavelist.push(element);
            if (this.__state === SKIP || ret === SKIP) {
              continue;
            }
            node = element.node;
            nodeType = element.wrap || node.type;
            candidates = VisitorKeys[nodeType];
            current = candidates.length;
            while ((current -= 1) >= 0) {
              key = candidates[current];
              candidate = node[key];
              if (!candidate) {
                continue;
              }
              if (!isArray(candidate)) {
                worklist.push(new Element(candidate, key, null, null));
                continue;
              }
              current2 = candidate.length;
              while ((current2 -= 1) >= 0) {
                if (!candidate[current2]) {
                  continue;
                }
                if ((nodeType === Syntax.ObjectExpression || nodeType === Syntax.ObjectPattern) && 'properties' === candidates[current]) {
                  element = new Element(candidate[current2], [
                    key,
                    current2
                  ], 'Property', null);
                } else {
                  element = new Element(candidate[current2], [
                    key,
                    current2
                  ], null, null);
                }
                worklist.push(element);
              }
            }
          }
        }
      };
      Controller.prototype.replace = function replace(root, visitor) {
        var worklist, leavelist, node, nodeType, target, element, current, current2, candidates, candidate, sentinel, outer, key;
        this.__initialize(root, visitor);
        sentinel = {};
        worklist = this.__worklist;
        leavelist = this.__leavelist;
        outer = { root: root };
        element = new Element(root, null, null, new Reference(outer, 'root'));
        worklist.push(element);
        leavelist.push(element);
        while (worklist.length) {
          element = worklist.pop();
          if (element === sentinel) {
            element = leavelist.pop();
            target = this.__execute(visitor.leave, element);
            if (target !== undefined && target !== BREAK && target !== SKIP) {
              element.ref.replace(target);
            }
            if (this.__state === BREAK || target === BREAK) {
              return outer.root;
            }
            continue;
          }
          target = this.__execute(visitor.enter, element);
          if (target !== undefined && target !== BREAK && target !== SKIP) {
            element.ref.replace(target);
            element.node = target;
          }
          if (this.__state === BREAK || target === BREAK) {
            return outer.root;
          }
          node = element.node;
          if (!node) {
            continue;
          }
          worklist.push(sentinel);
          leavelist.push(element);
          if (this.__state === SKIP || target === SKIP) {
            continue;
          }
          nodeType = element.wrap || node.type;
          candidates = VisitorKeys[nodeType];
          current = candidates.length;
          while ((current -= 1) >= 0) {
            key = candidates[current];
            candidate = node[key];
            if (!candidate) {
              continue;
            }
            if (!isArray(candidate)) {
              worklist.push(new Element(candidate, key, null, new Reference(node, key)));
              continue;
            }
            current2 = candidate.length;
            while ((current2 -= 1) >= 0) {
              if (!candidate[current2]) {
                continue;
              }
              if (nodeType === Syntax.ObjectExpression && 'properties' === candidates[current]) {
                element = new Element(candidate[current2], [
                  key,
                  current2
                ], 'Property', new Reference(candidate, current2));
              } else {
                element = new Element(candidate[current2], [
                  key,
                  current2
                ], null, new Reference(candidate, current2));
              }
              worklist.push(element);
            }
          }
        }
        return outer.root;
      };
      function traverse(root, visitor) {
        var controller = new Controller;
        return controller.traverse(root, visitor);
      }
      function replace(root, visitor) {
        var controller = new Controller;
        return controller.replace(root, visitor);
      }
      function extendCommentRange(comment, tokens) {
        var target;
        target = upperBound(tokens, function search(token) {
          return token.range[0] > comment.range[0];
        });
        comment.extendedRange = [
          comment.range[0],
          comment.range[1]
        ];
        if (target !== tokens.length) {
          comment.extendedRange[1] = tokens[target].range[0];
        }
        target -= 1;
        if (target >= 0) {
          comment.extendedRange[0] = tokens[target].range[1];
        }
        return comment;
      }
      function attachComments(tree, providedComments, tokens) {
        var comments = [], comment, len, i, cursor;
        if (!tree.range) {
          throw new Error('attachComments needs range information');
        }
        if (!tokens.length) {
          if (providedComments.length) {
            for (i = 0, len = providedComments.length; i < len; i += 1) {
              comment = deepCopy(providedComments[i]);
              comment.extendedRange = [
                0,
                tree.range[0]
              ];
              comments.push(comment);
            }
            tree.leadingComments = comments;
          }
          return tree;
        }
        for (i = 0, len = providedComments.length; i < len; i += 1) {
          comments.push(extendCommentRange(deepCopy(providedComments[i]), tokens));
        }
        cursor = 0;
        traverse(tree, {
          enter: function (node) {
            var comment;
            while (cursor < comments.length) {
              comment = comments[cursor];
              if (comment.extendedRange[1] > node.range[0]) {
                break;
              }
              if (comment.extendedRange[1] === node.range[0]) {
                if (!node.leadingComments) {
                  node.leadingComments = [];
                }
                node.leadingComments.push(comment);
                comments.splice(cursor, 1);
              } else {
                cursor += 1;
              }
            }
            if (cursor === comments.length) {
              return VisitorOption.Break;
            }
            if (comments[cursor].extendedRange[0] > node.range[1]) {
              return VisitorOption.Skip;
            }
          }
        });
        cursor = 0;
        traverse(tree, {
          leave: function (node) {
            var comment;
            while (cursor < comments.length) {
              comment = comments[cursor];
              if (node.range[1] < comment.extendedRange[0]) {
                break;
              }
              if (node.range[1] === comment.extendedRange[0]) {
                if (!node.trailingComments) {
                  node.trailingComments = [];
                }
                node.trailingComments.push(comment);
                comments.splice(cursor, 1);
              } else {
                cursor += 1;
              }
            }
            if (cursor === comments.length) {
              return VisitorOption.Break;
            }
            if (comments[cursor].extendedRange[0] > node.range[1]) {
              return VisitorOption.Skip;
            }
          }
        });
        return tree;
      }
      exports.version = '1.3.3-dev';
      exports.Syntax = Syntax;
      exports.traverse = traverse;
      exports.replace = replace;
      exports.attachComments = attachComments;
      exports.VisitorKeys = VisitorKeys;
      exports.VisitorOption = VisitorOption;
      exports.Controller = Controller;
    }));
  });
  require('/tools/entry-point.js');
}.call(this, this));