text: /*
    Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
    Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>
    Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
    Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com>
    Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
    Copyright (C) 2011 Yusuke Suzuki <utatane.tea@gmail.com>
    Copyright (C) 2011 Arpad Borsos <arpad.borsos@googlemail.com>
  
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are met:
  
      * Redistributions of source code must retain the above copyright
        notice, this list of conditions and the following disclaimer.
      * Redistributions in binary form must reproduce the above copyright
        notice, this list of conditions and the following disclaimer in the
        documentation and/or other materials provided with the distribution.
  
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
  
  /*jslint browser:true node:true */
  /*global escodegen:true, esprima:true*/
  
  var runTests, data;
  
  data = {
  
      'Primary Expression': {
  
          'this\n': {
              type: 'Program',
              body: [{
                  type: 'ExpressionStatement',
                  expression: {
                      type: 'ThisExpression',
                      range: [0, 4],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 4 }
                      }
                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 2, column: 0 }
                  }
              }],
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 0 }
              },
              tokens: [{
                  type: 'Keyword',
                  value: 'this',
                  range: [0, 4]
              }]
          },
  
          'null\n': {
              type: 'Program',
              body: [{
                  type: 'ExpressionStatement',
                  expression: {
                      type: 'Literal',
                      value: null,
                      raw: 'null',
                      range: [0, 4],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 4 }
                      }
                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 2, column: 0 }
                  }
              }],
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 0 }
              },
              tokens: [{
                  type: 'Null',
                  value: 'null',
                  range: [0, 4]
              }]
          },
  
          '\n    42\n\n': {
              type: 'Program',
              body: [{
                  type: 'ExpressionStatement',
                  expression: {
                      type: 'Literal',
                      value: 42,
                      raw: '42',
                      range: [5, 7],
                      loc: {
                          start: { line: 2, column: 4 },
                          end: { line: 2, column: 6 }
                      }
                  },
                  range: [5, 9],
                  loc: {
                      start: { line: 2, column: 4 },
                      end: { line: 4, column: 0 }
                  }
              }],
              range: [5, 9],
              loc: {
                  start: { line: 2, column: 4 },
                  end: { line: 4, column: 0 }
              },
              tokens: [{
                  type: 'Numeric',
                  value: '42',
                  range: [5, 7]
              }]
          },
  
          '(1 + 2 ) * 3': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '*',
                  left: {
                      type: 'BinaryExpression',
                      operator: '+',
                      left: {
                          type: 'Literal',
                          value: 1,
                          raw: '1',
                          range: [1, 2],
                          loc: {
                              start: { line: 1, column: 1 },
                              end: { line: 1, column: 2 }
                          }
                      },
                      right: {
                          type: 'Literal',
                          value: 2,
                          raw: '2',
                          range: [5, 6],
                          loc: {
                              start: { line: 1, column: 5 },
                              end: { line: 1, column: 6 }
                          }
                      },
                      range: [0, 8],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 8 }
                      }
                  },
                  right: {
                      type: 'Literal',
                      value: 3,
                      raw: '3',
                      range: [11, 12],
                      loc: {
                          start: { line: 1, column: 11 },
                          end: { line: 1, column: 12 }
                      }
                  },
                  range: [0, 12],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 12 }
                  }
              },
              range: [0, 12],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 12 }
              }
          }
  
      },
  
      'Array Initializer': {
  
          'x = []': {
              type: 'Program',
              body: [{
                  type: 'ExpressionStatement',
                  expression: {
                      type: 'AssignmentExpression',
                      operator: '=',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'ArrayExpression',
                          elements: [],
                          range: [4, 6],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 6 }
                          }
                      },
                      range: [0, 6],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              }],
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              },
              tokens: [{
                  type: 'Identifier',
                  value: 'x',
                  range: [0, 1]
              }, {
                  type: 'Punctuator',
                  value: '=',
                  range: [2, 3]
              }, {
                  type: 'Punctuator',
                  value: '[',
                  range: [4, 5]
              }, {
                  type: 'Punctuator',
                  value: ']',
                  range: [5, 6]
              }]
          },
  
          'x = [ ]': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [],
                      range: [4, 7],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          'x = [ 42 ]': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [{
                          type: 'Literal',
                          value: 42,
                          raw: '42',
                          range: [6, 8],
                          loc: {
                              start: { line: 1, column: 6 },
                              end: { line: 1, column: 8 }
                          }
                      }],
                      range: [4, 10],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 10 }
                      }
                  },
                  range: [0, 10],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 10 }
                  }
              },
              range: [0, 10],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 10 }
              }
          },
  
          'x = [ 42, ]': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [{
                          type: 'Literal',
                          value: 42,
                          raw: '42',
                          range: [6, 8],
                          loc: {
                              start: { line: 1, column: 6 },
                              end: { line: 1, column: 8 }
                          }
                      }],
                      range: [4, 11],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 11 }
                      }
                  },
                  range: [0, 11],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 11 }
                  }
              },
              range: [0, 11],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 11 }
              }
          },
  
          'x = [ ,, 42 ]': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [
                          null,
                          null,
                          {
                              type: 'Literal',
                              value: 42,
                              raw: '42',
                              range: [9, 11],
                              loc: {
                                  start: { line: 1, column: 9 },
                                  end: { line: 1, column: 11 }
                              }
                          }],
                      range: [4, 13],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 13 }
                      }
                  },
                  range: [0, 13],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 13 }
                  }
              },
              range: [0, 13],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 13 }
              }
          },
  
          'x = [ 1, 2, 3, ]': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [{
                          type: 'Literal',
                          value: 1,
                          raw: '1',
                          range: [6, 7],
                          loc: {
                              start: { line: 1, column: 6 },
                              end: { line: 1, column: 7 }
                          }
                      }, {
                          type: 'Literal',
                          value: 2,
                          raw: '2',
                          range: [9, 10],
                          loc: {
                              start: { line: 1, column: 9 },
                              end: { line: 1, column: 10 }
                          }
                      }, {
                          type: 'Literal',
                          value: 3,
                          raw: '3',
                          range: [12, 13],
                          loc: {
                              start: { line: 1, column: 12 },
                              end: { line: 1, column: 13 }
                          }
                      }],
                      range: [4, 16],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 16 }
                      }
                  },
                  range: [0, 16],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 16 }
                  }
              },
              range: [0, 16],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 16 }
              }
          },
  
          'x = [ 1, 2,, 3, ]': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [{
                          type: 'Literal',
                          value: 1,
                          raw: '1',
                          range: [6, 7],
                          loc: {
                              start: { line: 1, column: 6 },
                              end: { line: 1, column: 7 }
                          }
                      }, {
                          type: 'Literal',
                          value: 2,
                          raw: '2',
                          range: [9, 10],
                          loc: {
                              start: { line: 1, column: 9 },
                              end: { line: 1, column: 10 }
                          }
                      }, null, {
                          type: 'Literal',
                          value: 3,
                          raw: '3',
                          range: [13, 14],
                          loc: {
                              start: { line: 1, column: 13 },
                              end: { line: 1, column: 14 }
                          }
                      }],
                      range: [4, 17],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 17 }
                      }
                  },
                  range: [0, 17],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 17 }
                  }
              },
              range: [0, 17],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 17 }
              }
          },
  
          '日本語 = []': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: '日本語',
                      range: [0, 3],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 3 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [],
                      range: [6, 8],
                      loc: {
                          start: { line: 1, column: 6 },
                          end: { line: 1, column: 8 }
                      }
                  },
                  range: [0, 8],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 8 }
                  }
              },
              range: [0, 8],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 8 }
              }
          },
  
          'T\u203F = []': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'T\u203F',
                      range: [0, 2],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 2 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [],
                      range: [5, 7],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          'T\u200C = []': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'T\u200C',
                      range: [0, 2],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 2 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [],
                      range: [5, 7],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          'T\u200D = []': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'T\u200D',
                      range: [0, 2],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 2 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [],
                      range: [5, 7],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          '\u2163\u2161 = []': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: '\u2163\u2161',
                      range: [0, 2],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 2 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [],
                      range: [5, 7],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          '\u2163\u2161\u200A=\u2009[]': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: '\u2163\u2161',
                      range: [0, 2],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 2 }
                      }
                  },
                  right: {
                      type: 'ArrayExpression',
                      elements: [],
                      range: [5, 7],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          }
  
      },
  
      'Object Initializer': {
  
          'x = {}': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'ObjectExpression',
                      properties: [],
                      range: [4, 6],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'x = { }': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'ObjectExpression',
                      properties: [],
                      range: [4, 7],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          'x = { answer: 4 }': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x'
                  },
                  right: {
                      type: 'ObjectExpression',
                      properties: [{
                          key: {
                              type: 'Identifier',
                              name: 'answer'
                          },
                          value: {
                              type: 'Literal',
                              value: 4
                          },
                          kind: 'init'
                      }]
                  }
              }
          },
  
          'x = { answer: 42 }': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'ObjectExpression',
                      properties: [{
                          type: 'Property',
                          key: {
                              type: 'Identifier',
                              name: 'answer',
                              range: [6, 12],
                              loc: {
                                  start: { line: 1, column: 6 },
                                  end: { line: 1, column: 12 }
                              }
                          },
                          value: {
                              type: 'Literal',
                              value: 42,
                              raw: '42',
                              range: [14, 16],
                              loc: {
                                  start: { line: 1, column: 14 },
                                  end: { line: 1, column: 16 }
                              }
                          },
                          kind: 'init',
                          range: [6, 16],
                          loc: {
                              start: { line: 1, column: 6 },
                              end: { line: 1, column: 16 }
                          }
                      }],
                      range: [4, 18],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 18 }
                      }
                  },
                  range: [0, 18],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 18 }
                  }
              },
              range: [0, 18],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 18 }
              }
          },
  
          'x = { if: 42 }': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
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          '0012': {
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          '"\\u0061"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'a',
                  raw: '"\\u0061"',
                  range: [0, 8],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 8 }
                  }
              },
              range: [0, 8],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 8 }
              }
          },
  
          '"\\x61"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'a',
                  raw: '"\\x61"',
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          '"\\u00"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'u00',
                  raw: '"\\u00"',
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          '"\\xt"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'xt',
                  raw: '"\\xt"',
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
                  }
              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
              }
          },
  
          '"Hello\\nworld"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello\nworld',
                  raw: '"Hello\\nworld"',
                  range: [0, 14],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 14 }
                  }
              },
              range: [0, 14],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 14 }
              }
          },
  
          '"Hello\\\nworld"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Helloworld',
                  raw: '"Hello\\\nworld"',
                  range: [0, 14],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 2, column: 14 }
                  }
              },
              range: [0, 14],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 14 }
              }
          },
  
          '"Hello\\02World"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello\u0002World',
                  raw: '"Hello\\02World"',
                  range: [0, 15],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 15 }
                  }
              },
              range: [0, 15],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 15 }
              }
          },
  
          '"Hello\\012World"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello\u000AWorld',
                  raw: '"Hello\\012World"',
                  range: [0, 16],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 16 }
                  }
              },
              range: [0, 16],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 16 }
              }
          },
  
          '"Hello\\122World"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello\122World',
                  raw: '"Hello\\122World"',
                  range: [0, 16],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 16 }
                  }
              },
              range: [0, 16],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 16 }
              }
          },
  
          '"Hello\\0122World"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello\u000A2World',
                  raw: '"Hello\\0122World"',
                  range: [0, 17],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 17 }
                  }
              },
              range: [0, 17],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 17 }
              }
          },
  
          '"Hello\\312World"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello\u00CAWorld',
                  raw: '"Hello\\312World"',
                  range: [0, 16],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 16 }
                  }
              },
              range: [0, 16],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 16 }
              }
          },
  
          '"Hello\\412World"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello\412World',
                  raw: '"Hello\\412World"',
                  range: [0, 16],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 16 }
                  }
              },
              range: [0, 16],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 16 }
              }
          },
  
          '"Hello\\812World"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello812World',
                  raw: '"Hello\\812World"',
                  range: [0, 16],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 16 }
                  }
              },
              range: [0, 16],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 16 }
              }
          },
  
          '"Hello\\712World"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello\712World',
                  raw: '"Hello\\712World"',
                  range: [0, 16],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 16 }
                  }
              },
              range: [0, 16],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 16 }
              }
          },
  
          '"Hello\\0World"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello\u0000World',
                  raw: '"Hello\\0World"',
                  range: [0, 14],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 14 }
                  }
              },
              range: [0, 14],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 14 }
              }
          },
  
          '"Hello\\\r\nworld"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Helloworld',
                  raw: '"Hello\\\r\nworld"',
                  range: [0, 15],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 2, column: 15 }
                  }
              },
              range: [0, 15],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 15 }
              }
          },
  
          '"Hello\\1World"': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'Literal',
                  value: 'Hello\u0001World',
                  raw: '"Hello\\1World"',
                  range: [0, 14],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 14 }
                  }
              },
              range: [0, 14],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 14 }
              }
          }
      },
  
      'Regular Expression Literals': {
  
          'var x = /[a-z]/i': {
              type: 'Program',
              body: [{
                  type: 'VariableDeclaration',
                  declarations: [{
                      type: 'VariableDeclarator',
                      id: {
                          type: 'Identifier',
                          name: 'x',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      init: {
                          type: 'Literal',
                          value: '/[a-z]/i',
                          raw: '/[a-z]/i',
                          range: [8, 16],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 16 }
                          }
                      },
                      range: [4, 16],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 16 }
                      }
                  }],
                  kind: 'var',
                  range: [0, 16],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 16 }
                  }
              }],
              range: [0, 16],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 16 }
              },
              tokens: [{
                  type: 'Keyword',
                  value: 'var',
                  range: [0, 3]
              }, {
                  type: 'Identifier',
                  value: 'x',
                  range: [4, 5]
              }, {
                  type: 'Punctuator',
                  value: '=',
                  range: [6, 7]
              }, {
                  type: 'RegularExpression',
                  value: '/[a-z]/i',
                  range: [8, 16]
              }]
          },
  
          'var x = /[P QR]/i': {
              type: 'Program',
              body: [{
                  type: 'VariableDeclaration',
                  declarations: [{
                      type: 'VariableDeclarator',
                      id: {
                          type: 'Identifier',
                          name: 'x',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      init: {
                          type: 'Literal',
                          value: '/[P QR]/i',
                          raw: '/[P QR]/i',
                          range: [8, 17],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 17 }
                          }
                      },
                      range: [4, 17],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 17 }
                      }
                  }],
                  kind: 'var',
                  range: [0, 17],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 17 }
                  }
              }],
              range: [0, 17],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 17 }
              },
              tokens: [{
                  type: 'Keyword',
                  value: 'var',
                  range: [0, 3]
              }, {
                  type: 'Identifier',
                  value: 'x',
                  range: [4, 5]
              }, {
                  type: 'Punctuator',
                  value: '=',
                  range: [6, 7]
              }, {
                  type: 'RegularExpression',
                  value: '/[P QR]/i',
                  range: [8, 17]
              }]
          },
  
          'var x = /foo\\/bar/': {
              type: 'Program',
              body: [{
                  type: 'VariableDeclaration',
                  declarations: [{
                      type: 'VariableDeclarator',
                      id: {
                          type: 'Identifier',
                          name: 'x',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      init: {
                          type: 'Literal',
                          value: '/foo\\/bar/',
                          raw: '/foo\\/bar/',
                          range: [8, 18],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 18 }
                          }
                      },
                      range: [4, 18],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 18 }
                      }
                  }],
                  kind: 'var',
                  range: [0, 18],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 18 }
                  }
              }],
              range: [0, 18],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 18 }
              },
              tokens: [{
                  type: 'Keyword',
                  value: 'var',
                  range: [0, 3]
              }, {
                  type: 'Identifier',
                  value: 'x',
                  range: [4, 5]
              }, {
                  type: 'Punctuator',
                  value: '=',
                  range: [6, 7]
              }, {
                  type: 'RegularExpression',
                  value: '/foo\\/bar/',
                  range: [8, 18]
              }]
          },
  
          'var x = /=([^=\\s])+/g': {
              type: 'Program',
              body: [{
                  type: 'VariableDeclaration',
                  declarations: [{
                      type: 'VariableDeclarator',
                      id: {
                          type: 'Identifier',
                          name: 'x',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      init: {
                          type: 'Literal',
                          value: '/=([^=\\s])+/g',
                          raw: '/=([^=\\s])+/g',
                          range: [8, 21],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 21 }
                          }
                      },
                      range: [4, 21],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 21 }
                      }
                  }],
                  kind: 'var',
                  range: [0, 21],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 21 }
                  }
              }],
              range: [0, 21],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 21 }
              },
              tokens: [{
                  type: 'Keyword',
                  value: 'var',
                  range: [0, 3]
              }, {
                  type: 'Identifier',
                  value: 'x',
                  range: [4, 5]
              }, {
                  type: 'Punctuator',
                  value: '=',
                  range: [6, 7]
              }, {
                  type: 'RegularExpression',
                  value: '/=([^=\\s])+/g',
                  range: [8, 21]
              }]
          },
  
          'var x = /[P QR]/\\u0067': {
              type: 'Program',
              body: [{
                  type: 'VariableDeclaration',
                  declarations: [{
                      type: 'VariableDeclarator',
                      id: {
                          type: 'Identifier',
                          name: 'x',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      init: {
                          type: 'Literal',
                          value: '/[P QR]/g',
                          raw: '/[P QR]/\\u0067',
                          range: [8, 22],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 22 }
                          }
                      },
                      range: [4, 22],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 22 }
                      }
                  }],
                  kind: 'var',
                  range: [0, 22],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 22 }
                  }
              }],
              range: [0, 22],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 22 }
              },
              tokens: [{
                  type: 'Keyword',
                  value: 'var',
                  range: [0, 3]
              }, {
                  type: 'Identifier',
                  value: 'x',
                  range: [4, 5]
              }, {
                  type: 'Punctuator',
                  value: '=',
                  range: [6, 7]
              }, {
                  type: 'RegularExpression',
                  value: '/[P QR]/\\u0067',
                  range: [8, 22]
              }]
          },
  
          'var x = /[P QR]/\\g': {
              type: 'Program',
              body: [{
                  type: 'VariableDeclaration',
                  declarations: [{
                      type: 'VariableDeclarator',
                      id: {
                          type: 'Identifier',
                          name: 'x',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      init: {
                          type: 'Literal',
                          value: '/[P QR]/g',
                          raw: '/[P QR]/\\g',
                          range: [8, 18],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 18 }
                          }
                      },
                      range: [4, 18],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 18 }
                      }
                  }],
                  kind: 'var',
                  range: [0, 18],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 18 }
                  }
              }],
              range: [0, 18],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 18 }
              },
              tokens: [{
                  type: 'Keyword',
                  value: 'var',
                  range: [0, 3]
              }, {
                  type: 'Identifier',
                  value: 'x',
                  range: [4, 5]
              }, {
                  type: 'Punctuator',
                  value: '=',
                  range: [6, 7]
              }, {
                  type: 'RegularExpression',
                  value: '/[P QR]/\\g',
                  range: [8, 18]
              }]
          }
  
      },
  
      'Left-Hand-Side Expression': {
  
          'new Button': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'NewExpression',
                  callee: {
                      type: 'Identifier',
                      name: 'Button',
                      range: [4, 10],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 10 }
                      }
                  },
                  'arguments': [],
                  range: [0, 10],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 10 }
                  }
              },
              range: [0, 10],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 10 }
              }
          },
  
          'new Button()': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'NewExpression',
                  callee: {
                      type: 'Identifier',
                      name: 'Button',
                      range: [4, 10],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 10 }
                      }
                  },
                  'arguments': [],
                  range: [0, 12],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 12 }
                  }
              },
              range: [0, 12],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 12 }
              }
          },
  
          'new new foo': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'NewExpression',
                  callee: {
                      type: 'NewExpression',
                      callee: {
                          type: 'Identifier',
                          name: 'foo',
                          range: [8, 11],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 11 }
                          }
                      },
                      'arguments': [],
                      range: [4, 11],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 11 }
                      }
                  },
                  'arguments': [],
                  range: [0, 11],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 11 }
                  }
              },
              range: [0, 11],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 11 }
              }
          },
  
          'new new foo()': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'NewExpression',
                  callee: {
                      type: 'NewExpression',
                      callee: {
                          type: 'Identifier',
                          name: 'foo',
                          range: [8, 11],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 11 }
                          }
                      },
                      'arguments': [],
                      range: [4, 13],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 13 }
                      }
                  },
                  'arguments': [],
                  range: [0, 13],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 13 }
                  }
              },
              range: [0, 13],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 13 }
              }
          },
  
          'new foo().bar()': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'CallExpression',
                  callee: {
                      type: 'MemberExpression',
                      computed: false,
                      object: {
                          type: 'NewExpression',
                          callee: {
                              type: 'Identifier',
                              name: 'foo',
                              range: [4, 7],
                              loc: {
                                  start: { line: 1, column: 4 },
                                  end: { line: 1, column: 7 }
                              }
                          },
                          'arguments': [],
                          range: [0, 9],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 9 }
                          }
                      },
                      property: {
                          type: 'Identifier',
                          name: 'bar',
                          range: [10, 13],
                          loc: {
                              start: { line: 1, column: 10 },
                              end: { line: 1, column: 13 }
                          }
                      },
                      range: [0, 13],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 13 }
                      }
                  },
                  'arguments': [],
                  range: [0, 15],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 15 }
                  }
              },
              range: [0, 15],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 15 }
              }
          },
  
          'new foo[bar]': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'NewExpression',
                  callee: {
                      type: 'MemberExpression',
                      computed: true,
                      object: {
                          type: 'Identifier',
                          name: 'foo',
                          range: [4, 7],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 7 }
                          }
                      },
                      property: {
                          type: 'Identifier',
                          name: 'bar',
                          range: [8, 11],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 11 }
                          }
                      },
                      range: [4, 12],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 12 }
                      }
                  },
                  'arguments': [],
                  range: [0, 12],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 12 }
                  }
              },
              range: [0, 12],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 12 }
              }
          },
  
  
          'new foo.bar()': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'NewExpression',
                  callee: {
                      type: 'MemberExpression',
                      computed: false,
                      object: {
                          type: 'Identifier',
                          name: 'foo',
                          range: [4, 7],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 7 }
                          }
                      },
                      property: {
                          type: 'Identifier',
                          name: 'bar',
                          range: [8, 11],
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              loc: {
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          'foo(bar, baz)': {
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                  type: 'CallExpression',
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                      type: 'Identifier',
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          'universe.milkyway': {
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              range: [0, 17],
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          'universe.milkyway.solarsystem': {
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                  type: 'MemberExpression',
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                  object: {
                      type: 'MemberExpression',
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                      object: {
                          type: 'Identifier',
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                          type: 'Identifier',
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                      type: 'Identifier',
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              range: [0, 29],
              loc: {
                  start: { line: 1, column: 0 },
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          'universe.milkyway.solarsystem.Earth': {
              type: 'ExpressionStatement',
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                  object: {
                      type: 'MemberExpression',
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                      object: {
                          type: 'MemberExpression',
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                              type: 'Identifier',
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                                  start: { line: 1, column: 0 },
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                      property: {
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                      type: 'Identifier',
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                  range: [0, 35],
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              range: [0, 35],
              loc: {
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          'universe[galaxyName, otherUselessName]': {
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                  type: 'MemberExpression',
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                      }, {
                          type: 'Identifier',
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                      range: [9, 37],
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                          start: { line: 1, column: 9 },
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                  range: [0, 38],
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              },
              range: [0, 38],
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          'universe[galaxyName]': {
              type: 'ExpressionStatement',
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                  type: 'MemberExpression',
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                  object: {
                      type: 'Identifier',
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                      type: 'Identifier',
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              range: [0, 20],
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          'universe[42].galaxies': {
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                  object: {
                      type: 'MemberExpression',
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          'universe(42).galaxies': {
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          'earth.asia.Indonesia.prepareForElection(2014)': {
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          'universe.null': {
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      'Postfix Expressions': {
  
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          'x--': {
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          'eval++': {
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          'eval--': {
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                  prefix: false,
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          'arguments++': {
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          'arguments--': {
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      },
  
      'Unary Operators': {
  
          '++x': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UpdateExpression',
                  operator: '++',
                  argument: {
                      type: 'Identifier',
                      name: 'x',
                      range: [2, 3],
                      loc: {
                          start: { line: 1, column: 2 },
                          end: { line: 1, column: 3 }
                      }
                  },
                  prefix: true,
                  range: [0, 3],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 3 }
                  }
              },
              range: [0, 3],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 3 }
              }
          },
  
          '+ ++x': {
            type: 'Program',
            body:
             [ { type: 'ExpressionStatement',
                 expression:
                  { type: 'UnaryExpression',
                    operator: '+',
                    argument:
                     { type: 'UpdateExpression',
                       operator: '++',
                       argument:
                        { type: 'Identifier',
                          name: 'x',
                          range: [ 4, 5 ],
                          loc:
                           { start: { line: 1, column: 4 },
                             end: { line: 1, column: 5 } } },
                       prefix: true,
                       range: [ 1, 6 ],
                       loc:
                        { start: { line: 1, column: 1 },
                          end: { line: 1, column: 6 } } },
                    range: [ 0, 6 ],
                    loc:
                     { start: { line: 1, column: 0 },
                       end: { line: 1, column: 6 } } },
                 range: [ 0, 6 ],
                 loc:
                  { start: { line: 1, column: 0 },
                    end: { line: 1, column: 6 } } } ],
            range: [ 0, 6 ],
            loc:
             { start: { line: 1, column: 0 },
               end: { line: 1, column: 6 } } },
  
          '--x': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UpdateExpression',
                  operator: '--',
                  argument: {
                      type: 'Identifier',
                      name: 'x',
                      range: [2, 3],
                      loc: {
                          start: { line: 1, column: 2 },
                          end: { line: 1, column: 3 }
                      }
                  },
                  prefix: true,
                  range: [0, 3],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 3 }
                  }
              },
              range: [0, 3],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 3 }
              }
          },
  
          '- --x': {
            type: 'Program',
            body:
             [ { type: 'ExpressionStatement',
                 expression:
                  { type: 'UnaryExpression',
                    operator: '-',
                    argument:
                     { type: 'UpdateExpression',
                       operator: '--',
                       argument:
                        { type: 'Identifier',
                          name: 'x',
                          range: [ 4, 5 ],
                          loc:
                           { start: { line: 1, column: 4 },
                             end: { line: 1, column: 5 } } },
                       prefix: true,
                       range: [ 1, 6 ],
                       loc:
                        { start: { line: 1, column: 1 },
                          end: { line: 1, column: 6 } } },
                    range: [ 0, 6 ],
                    loc:
                     { start: { line: 1, column: 0 },
                       end: { line: 1, column: 6 } } },
                 range: [ 0, 6 ],
                 loc:
                  { start: { line: 1, column: 0 },
                    end: { line: 1, column: 6 } } } ],
            range: [ 0, 6 ],
            loc:
             { start: { line: 1, column: 0 },
               end: { line: 1, column: 6 } } },
  
          '++eval': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UpdateExpression',
                  operator: '++',
                  argument: {
                      type: 'Identifier',
                      name: 'eval',
                      range: [2, 6],
                      loc: {
                          start: { line: 1, column: 2 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  prefix: true,
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          '--eval': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UpdateExpression',
                  operator: '--',
                  argument: {
                      type: 'Identifier',
                      name: 'eval',
                      range: [2, 6],
                      loc: {
                          start: { line: 1, column: 2 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  prefix: true,
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          '++arguments': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UpdateExpression',
                  operator: '++',
                  argument: {
                      type: 'Identifier',
                      name: 'arguments',
                      range: [2, 11],
                      loc: {
                          start: { line: 1, column: 2 },
                          end: { line: 1, column: 11 }
                      }
                  },
                  prefix: true,
                  range: [0, 11],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 11 }
                  }
              },
              range: [0, 11],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 11 }
              }
          },
  
          '--arguments': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UpdateExpression',
                  operator: '--',
                  argument: {
                      type: 'Identifier',
                      name: 'arguments',
                      range: [2, 11],
                      loc: {
                          start: { line: 1, column: 2 },
                          end: { line: 1, column: 11 }
                      }
                  },
                  prefix: true,
                  range: [0, 11],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 11 }
                  }
              },
              range: [0, 11],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 11 }
              }
          },
  
          '+x': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UnaryExpression',
                  operator: '+',
                  argument: {
                      type: 'Identifier',
                      name: 'x',
                      range: [1, 2],
                      loc: {
                          start: { line: 1, column: 1 },
                          end: { line: 1, column: 2 }
                      }
                  },
                  range: [0, 2],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 2 }
                  }
              },
              range: [0, 2],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 2 }
              }
          },
  
          '-x': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UnaryExpression',
                  operator: '-',
                  argument: {
                      type: 'Identifier',
                      name: 'x',
                      range: [1, 2],
                      loc: {
                          start: { line: 1, column: 1 },
                          end: { line: 1, column: 2 }
                      }
                  },
                  range: [0, 2],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 2 }
                  }
              },
              range: [0, 2],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 2 }
              }
          },
  
          '~x': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UnaryExpression',
                  operator: '~',
                  argument: {
                      type: 'Identifier',
                      name: 'x',
                      range: [1, 2],
                      loc: {
                          start: { line: 1, column: 1 },
                          end: { line: 1, column: 2 }
                      }
                  },
                  range: [0, 2],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 2 }
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              },
              range: [0, 2],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 2 }
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          '!x': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UnaryExpression',
                  operator: '!',
                  argument: {
                      type: 'Identifier',
                      name: 'x',
                      range: [1, 2],
                      loc: {
                          start: { line: 1, column: 1 },
                          end: { line: 1, column: 2 }
                      }
                  },
                  range: [0, 2],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 2 }
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              range: [0, 2],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 2 }
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          },
  
          'void x': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UnaryExpression',
                  operator: 'void',
                  argument: {
                      type: 'Identifier',
                      name: 'x',
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                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 6 }
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                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
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              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
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          'delete x': {
              type: 'ExpressionStatement',
              expression: {
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                  operator: 'delete',
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                      type: 'Identifier',
                      name: 'x',
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                      loc: {
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                          end: { line: 1, column: 8 }
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                  },
                  range: [0, 8],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 8 }
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              },
              range: [0, 8],
              loc: {
                  start: { line: 1, column: 0 },
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              }
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          'typeof x': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'UnaryExpression',
                  operator: 'typeof',
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                      type: 'Identifier',
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                      loc: {
                          start: { line: 1, column: 7 },
                          end: { line: 1, column: 8 }
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                  range: [0, 8],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 8 }
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              range: [0, 8],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 8 }
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      },
  
      'Multiplicative Operators': {
  
          'x * y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '*',
                  left: {
                      type: 'Identifier',
                      name: 'x',
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                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [4, 5],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
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                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
                  }
              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
              }
          },
  
          'x / y': {
              type: 'ExpressionStatement',
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                  type: 'BinaryExpression',
                  operator: '/',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
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                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
                  }
              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
              }
          },
  
          'x % y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '%',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [4, 5],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
                  }
              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
              }
          }
  
      },
  
      'Additive Operators': {
  
          'x + y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '+',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [4, 5],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
                  }
              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
              }
          },
  
          'x - y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '-',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [4, 5],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
                  }
              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
              }
          }
  
      },
  
      'Bitwise Shift Operator': {
  
          'x << y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '<<',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [5, 6],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'x >> y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '>>',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [5, 6],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'x >>> y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '>>>',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [6, 7],
                      loc: {
                          start: { line: 1, column: 6 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          }
  
      },
  
      'Relational Operators': {
  
          'x < y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '<',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [4, 5],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
                  }
              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
              }
          },
  
          'x > y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '>',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [4, 5],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
                  }
              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
              }
          },
  
          'x <= y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '<=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [5, 6],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'x >= y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '>=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [5, 6],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'x in y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: 'in',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [5, 6],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'x instanceof y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: 'instanceof',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [13, 14],
                      loc: {
                          start: { line: 1, column: 13 },
                          end: { line: 1, column: 14 }
                      }
                  },
                  range: [0, 14],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 14 }
                  }
              },
              range: [0, 14],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 14 }
              }
          }
  
      },
  
      'Equality Operators': {
  
          'x == y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '==',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [5, 6],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'x != y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '!=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [5, 6],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'x === y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '===',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [6, 7],
                      loc: {
                          start: { line: 1, column: 6 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          'x !== y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '!==',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
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                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [6, 7],
                      loc: {
                          start: { line: 1, column: 6 },
                          end: { line: 1, column: 7 }
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                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
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              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
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      },
  
      'Binary Bitwise Operators': {
  
          'x & y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '&',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [4, 5],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
                  }
              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
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          },
  
          'x ^ y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '^',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
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                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [4, 5],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
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              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
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          },
  
          'x | y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '|',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [4, 5],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
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                  },
                  range: [0, 5],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 5 }
                  }
              },
              range: [0, 5],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 5 }
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      },
  
      'Binary Expressions': {
  
          'x + y + z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '+',
                  left: {
                      type: 'BinaryExpression',
                      operator: '+',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x - y + z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '+',
                  left: {
                      type: 'BinaryExpression',
                      operator: '-',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
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                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
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                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
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                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
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              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x + y - z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '-',
                  left: {
                      type: 'BinaryExpression',
                      operator: '+',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
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                      right: {
                          type: 'Identifier',
                          name: 'y',
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                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
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                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
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                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
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              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x - y - z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '-',
                  left: {
                      type: 'BinaryExpression',
                      operator: '-',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
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                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x + y * z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '+',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'BinaryExpression',
                      operator: '*',
                      left: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'z',
                          range: [8, 9],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 9 }
                          }
                      },
                      range: [4, 9],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x + y / z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '+',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'BinaryExpression',
                      operator: '/',
                      left: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'z',
                          range: [8, 9],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 9 }
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                      },
                      range: [4, 9],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
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              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x - y % z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '-',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'BinaryExpression',
                      operator: '%',
                      left: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'z',
                          range: [8, 9],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 9 }
                          }
                      },
                      range: [4, 9],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x * y * z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '*',
                  left: {
                      type: 'BinaryExpression',
                      operator: '*',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x * y / z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '/',
                  left: {
                      type: 'BinaryExpression',
                      operator: '*',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
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                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x * y % z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '%',
                  left: {
                      type: 'BinaryExpression',
                      operator: '*',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
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                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x % y * z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '*',
                  left: {
                      type: 'BinaryExpression',
                      operator: '%',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
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                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x << y << z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '<<',
                  left: {
                      type: 'BinaryExpression',
                      operator: '<<',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [5, 6],
                          loc: {
                              start: { line: 1, column: 5 },
                              end: { line: 1, column: 6 }
                          }
                      },
                      range: [0, 6],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [10, 11],
                      loc: {
                          start: { line: 1, column: 10 },
                          end: { line: 1, column: 11 }
                      }
                  },
                  range: [0, 11],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 11 }
                  }
              },
              range: [0, 11],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 11 }
              }
          },
  
          'x | y | z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '|',
                  left: {
                      type: 'BinaryExpression',
                      operator: '|',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x & y & z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '&',
                  left: {
                      type: 'BinaryExpression',
                      operator: '&',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
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                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x ^ y ^ z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '^',
                  left: {
                      type: 'BinaryExpression',
                      operator: '^',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x & y | z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '|',
                  left: {
                      type: 'BinaryExpression',
                      operator: '&',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      range: [0, 5],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x | y ^ z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '|',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'BinaryExpression',
                      operator: '^',
                      left: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'z',
                          range: [8, 9],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 9 }
                          }
                      },
                      range: [4, 9],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x | y & z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'BinaryExpression',
                  operator: '|',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'BinaryExpression',
                      operator: '&',
                      left: {
                          type: 'Identifier',
                          name: 'y',
                          range: [4, 5],
                          loc: {
                              start: { line: 1, column: 4 },
                              end: { line: 1, column: 5 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'z',
                          range: [8, 9],
                          loc: {
                              start: { line: 1, column: 8 },
                              end: { line: 1, column: 9 }
                          }
                      },
                      range: [4, 9],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          }
  
      },
  
      'Binary Logical Operators': {
  
          'x || y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'LogicalExpression',
                  operator: '||',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [5, 6],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'x && y': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'LogicalExpression',
                  operator: '&&',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'y',
                      range: [5, 6],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'x || y || z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'LogicalExpression',
                  operator: '||',
                  left: {
                      type: 'LogicalExpression',
                      operator: '||',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [5, 6],
                          loc: {
                              start: { line: 1, column: 5 },
                              end: { line: 1, column: 6 }
                          }
                      },
                      range: [0, 6],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [10, 11],
                      loc: {
                          start: { line: 1, column: 10 },
                          end: { line: 1, column: 11 }
                      }
                  },
                  range: [0, 11],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 11 }
                  }
              },
              range: [0, 11],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 11 }
              }
          },
  
          'x && y && z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'LogicalExpression',
                  operator: '&&',
                  left: {
                      type: 'LogicalExpression',
                      operator: '&&',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [5, 6],
                          loc: {
                              start: { line: 1, column: 5 },
                              end: { line: 1, column: 6 }
                          }
                      },
                      range: [0, 6],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  right: {
                      type: 'Identifier',
                      name: 'z',
                      range: [10, 11],
                      loc: {
                          start: { line: 1, column: 10 },
                          end: { line: 1, column: 11 }
                      }
                  },
                  range: [0, 11],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 11 }
                  }
              },
              range: [0, 11],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 11 }
              }
          },
  
          'x || y && z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'LogicalExpression',
                  operator: '||',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'LogicalExpression',
                      operator: '&&',
                      left: {
                          type: 'Identifier',
                          name: 'y',
                          range: [5, 6],
                          loc: {
                              start: { line: 1, column: 5 },
                              end: { line: 1, column: 6 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'z',
                          range: [10, 11],
                          loc: {
                              start: { line: 1, column: 10 },
                              end: { line: 1, column: 11 }
                          }
                      },
                      range: [5, 11],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 11 }
                      }
                  },
                  range: [0, 11],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 11 }
                  }
              },
              range: [0, 11],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 11 }
              }
          },
  
          'x || y ^ z': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'LogicalExpression',
                  operator: '||',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'BinaryExpression',
                      operator: '^',
                      left: {
                          type: 'Identifier',
                          name: 'y',
                          range: [5, 6],
                          loc: {
                              start: { line: 1, column: 5 },
                              end: { line: 1, column: 6 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'z',
                          range: [9, 10],
                          loc: {
                              start: { line: 1, column: 9 },
                              end: { line: 1, column: 10 }
                          }
                      },
                      range: [5, 10],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 10 }
                      }
                  },
                  range: [0, 10],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 10 }
                  }
              },
              range: [0, 10],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 10 }
              }
          }
  
      },
  
      'Conditional Operator': {
  
          'y ? 1 : 2': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'ConditionalExpression',
                  test: {
                      type: 'Identifier',
                      name: 'y',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  consequent: {
                      type: 'Literal',
                      value: 1,
                      raw: '1',
                      range: [4, 5],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 5 }
                      }
                  },
                  alternate: {
                      type: 'Literal',
                      value: 2,
                      raw: '2',
                      range: [8, 9],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'x && y ? 1 : 2': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'ConditionalExpression',
                  test: {
                      type: 'LogicalExpression',
                      operator: '&&',
                      left: {
                          type: 'Identifier',
                          name: 'x',
                          range: [0, 1],
                          loc: {
                              start: { line: 1, column: 0 },
                              end: { line: 1, column: 1 }
                          }
                      },
                      right: {
                          type: 'Identifier',
                          name: 'y',
                          range: [5, 6],
                          loc: {
                              start: { line: 1, column: 5 },
                              end: { line: 1, column: 6 }
                          }
                      },
                      range: [0, 6],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  consequent: {
                      type: 'Literal',
                      value: 1,
                      raw: '1',
                      range: [9, 10],
                      loc: {
                          start: { line: 1, column: 9 },
                          end: { line: 1, column: 10 }
                      }
                  },
                  alternate: {
                      type: 'Literal',
                      value: 2,
                      raw: '2',
                      range: [13, 14],
                      loc: {
                          start: { line: 1, column: 13 },
                          end: { line: 1, column: 14 }
                      }
                  },
                  range: [0, 14],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 14 }
                  }
              },
              range: [0, 14],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 14 }
              }
          }
  
      },
  
      'Assignment Operators': {
  
          'x = 42': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Literal',
                      value: 42,
                      raw: '42',
                      range: [4, 6],
                      loc: {
                          start: { line: 1, column: 4 },
                          end: { line: 1, column: 6 }
                      }
                  },
                  range: [0, 6],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 6 }
                  }
              },
              range: [0, 6],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 6 }
              }
          },
  
          'eval = 42': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'eval',
                      range: [0, 4],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 4 }
                      }
                  },
                  right: {
                      type: 'Literal',
                      value: 42,
                      raw: '42',
                      range: [7, 9],
                      loc: {
                          start: { line: 1, column: 7 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  range: [0, 9],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 9 }
                  }
              },
              range: [0, 9],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 9 }
              }
          },
  
          'arguments = 42': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '=',
                  left: {
                      type: 'Identifier',
                      name: 'arguments',
                      range: [0, 9],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 9 }
                      }
                  },
                  right: {
                      type: 'Literal',
                      value: 42,
                      raw: '42',
                      range: [12, 14],
                      loc: {
                          start: { line: 1, column: 12 },
                          end: { line: 1, column: 14 }
                      }
                  },
                  range: [0, 14],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 14 }
                  }
              },
              range: [0, 14],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 14 }
              }
          },
  
          'x *= 42': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '*=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Literal',
                      value: 42,
                      raw: '42',
                      range: [5, 7],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          'x /= 42': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '/=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Literal',
                      value: 42,
                      raw: '42',
                      range: [5, 7],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          'x %= 42': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '%=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Literal',
                      value: 42,
                      raw: '42',
                      range: [5, 7],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          'x += 42': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '+=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Literal',
                      value: 42,
                      raw: '42',
                      range: [5, 7],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          'x -= 42': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '-=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Literal',
                      value: 42,
                      raw: '42',
                      range: [5, 7],
                      loc: {
                          start: { line: 1, column: 5 },
                          end: { line: 1, column: 7 }
                      }
                  },
                  range: [0, 7],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 7 }
                  }
              },
              range: [0, 7],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 1, column: 7 }
              }
          },
  
          'x <<= 42': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'AssignmentExpression',
                  operator: '<<=',
                  left: {
                      type: 'Identifier',
                      name: 'x',
                      range: [0, 1],
                      loc: {
                          start: { line: 1, column: 0 },
                          end: { line: 1, column: 1 }
                      }
                  },
                  right: {
                      type: 'Literal',
                      value: 42,
                      raw: '42',
                      range: [6, 8],
                      loc: {
                          start: { line: 1, column: 6 },
                          end: { line: 1, column: 8 }
                      }
                  },
                  range: [0, 8],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 1, column: 8 }
                  }
              },
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          'throw { message: "Error" }': {
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                  }
              },
              range: [0, 55],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 18 }
              }
          },
  
          'while (true) { break\nthere; }': {
              type: 'WhileStatement',
              test: {
                  type: 'Literal',
                  value: true,
                  raw: 'true',
                  range: [7, 11],
                  loc: {
                      start: { line: 1, column: 7 },
                      end: { line: 1, column: 11 }
                  }
              },
              body: {
                  type: 'BlockStatement',
                  body: [{
                      type: 'BreakStatement',
                      label: null,
                      range: [15, 20],
                      loc: {
                          start: { line: 1, column: 15 },
                          end: { line: 1, column: 20 }
                      }
                  }, {
                      type: 'ExpressionStatement',
                      expression: {
                          type: 'Identifier',
                          name: 'there',
                          range: [21, 26],
                          loc: {
                              start: { line: 2, column: 0 },
                              end: { line: 2, column: 5 }
                          }
                      },
                      range: [21, 27],
                      loc: {
                          start: { line: 2, column: 0 },
                          end: { line: 2, column: 6 }
                      }
                  }],
                  range: [13, 29],
                  loc: {
                      start: { line: 1, column: 13 },
                      end: { line: 2, column: 8 }
                  }
              },
              range: [0, 29],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 8 }
              }
          },
  
          'while (true) { break // Comment\nthere; }': {
              type: 'WhileStatement',
              test: {
                  type: 'Literal',
                  value: true,
                  raw: 'true',
                  range: [7, 11],
                  loc: {
                      start: { line: 1, column: 7 },
                      end: { line: 1, column: 11 }
                  }
              },
              body: {
                  type: 'BlockStatement',
                  body: [{
                      type: 'BreakStatement',
                      label: null,
                      range: [15, 20],
                      loc: {
                          start: { line: 1, column: 15 },
                          end: { line: 1, column: 20 }
                      }
                  }, {
                      type: 'ExpressionStatement',
                      expression: {
                          type: 'Identifier',
                          name: 'there',
                          range: [32, 37],
                          loc: {
                              start: { line: 2, column: 0 },
                              end: { line: 2, column: 5 }
                          }
                      },
                      range: [32, 38],
                      loc: {
                          start: { line: 2, column: 0 },
                          end: { line: 2, column: 6 }
                      }
                  }],
                  range: [13, 40],
                  loc: {
                      start: { line: 1, column: 13 },
                      end: { line: 2, column: 8 }
                  }
              },
              range: [0, 40],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 8 }
              }
          },
  
          'while (true) { break /* Multiline\nComment */there; }': {
              type: 'WhileStatement',
              test: {
                  type: 'Literal',
                  value: true,
                  raw: 'true',
                  range: [7, 11],
                  loc: {
                      start: { line: 1, column: 7 },
                      end: { line: 1, column: 11 }
                  }
              },
              body: {
                  type: 'BlockStatement',
                  body: [{
                      type: 'BreakStatement',
                      label: null,
                      range: [15, 20],
                      loc: {
                          start: { line: 1, column: 15 },
                          end: { line: 1, column: 20 }
                      }
                  }, {
                      type: 'ExpressionStatement',
                      expression: {
                          type: 'Identifier',
                          name: 'there',
                          range: [44, 49],
                          loc: {
                              start: { line: 2, column: 10 },
                              end: { line: 2, column: 15 }
                          }
                      },
                      range: [44, 50],
                      loc: {
                          start: { line: 2, column: 10 },
                          end: { line: 2, column: 16 }
                      }
                  }],
                  range: [13, 52],
                  loc: {
                      start: { line: 1, column: 13 },
                      end: { line: 2, column: 18 }
                  }
              },
              range: [0, 52],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 18 }
              }
          },
  
          '(function(){ return\nx; })': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'FunctionExpression',
                  id: null,
                  params: [],
                  body: {
                      type: 'BlockStatement',
                      body: [
                          {
                              type: 'ReturnStatement',
                              argument: null,
                              range: [13, 19],
                              loc: {
                                  start: { line: 1, column: 13 },
                                  end: { line: 1, column: 19 }
                              }
                          },
                          {
                              type: 'ExpressionStatement',
                              expression: {
                                  type: 'Identifier',
                                  name: 'x',
                                  range: [20, 21],
                                  loc: {
                                      start: { line: 2, column: 0 },
                                      end: { line: 2, column: 1 }
                                  }
                              },
                              range: [20, 22],
                              loc: {
                                  start: { line: 2, column: 0 },
                                  end: { line: 2, column: 2 }
                              }
                          }
                      ],
                      range: [11, 24],
                      loc: {
                          start: { line: 1, column: 11 },
                          end: { line: 2, column: 4 }
                      }
                  },
                  range: [0, 25],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 2, column: 5 }
                  }
              },
              range: [0, 25],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 5 }
              }
          },
  
          '(function(){ return // Comment\nx; })': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'FunctionExpression',
                  id: null,
                  params: [],
                  body: {
                      type: 'BlockStatement',
                      body: [
                          {
                              type: 'ReturnStatement',
                              argument: null,
                              range: [13, 19],
                              loc: {
                                  start: { line: 1, column: 13 },
                                  end: { line: 1, column: 19 }
                              }
                          },
                          {
                              type: 'ExpressionStatement',
                              expression: {
                                  type: 'Identifier',
                                  name: 'x',
                                  range: [31, 32],
                                  loc: {
                                      start: { line: 2, column: 0 },
                                      end: { line: 2, column: 1 }
                                  }
                              },
                              range: [31, 33],
                              loc: {
                                  start: { line: 2, column: 0 },
                                  end: { line: 2, column: 2 }
                              }
                          }
                      ],
                      range: [11, 35],
                      loc: {
                          start: { line: 1, column: 11 },
                          end: { line: 2, column: 4 }
                      }
                  },
                  range: [0, 36],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 2, column: 5 }
                  }
              },
              range: [0, 36],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 5 }
              }
          },
  
          '(function(){ return/* Multiline\nComment */x; })': {
              type: 'ExpressionStatement',
              expression: {
                  type: 'FunctionExpression',
                  id: null,
                  params: [],
                  body: {
                      type: 'BlockStatement',
                      body: [
                          {
                              type: 'ReturnStatement',
                              argument: null,
                              range: [13, 19],
                              loc: {
                                  start: { line: 1, column: 13 },
                                  end: { line: 1, column: 19 }
                              }
                          },
                          {
                              type: 'ExpressionStatement',
                              expression: {
                                  type: 'Identifier',
                                  name: 'x',
                                  range: [42, 43],
                                  loc: {
                                      start: { line: 2, column: 10 },
                                      end: { line: 2, column: 11 }
                                  }
                              },
                              range: [42, 44],
                              loc: {
                                  start: { line: 2, column: 10 },
                                  end: { line: 2, column: 12 }
                              }
                          }
                      ],
                      range: [11, 46],
                      loc: {
                          start: { line: 1, column: 11 },
                          end: { line: 2, column: 14 }
                      }
                  },
                  range: [0, 47],
                  loc: {
                      start: { line: 1, column: 0 },
                      end: { line: 2, column: 15 }
                  }
              },
              range: [0, 47],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 15 }
              }
          },
  
          '{ throw error\nerror; }': {
              type: 'BlockStatement',
              body: [{
                  type: 'ThrowStatement',
                  argument: {
                      type: 'Identifier',
                      name: 'error',
                      range: [8, 13],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 13 }
                      }
                  },
                  range: [2, 14],
                  loc: {
                      start: { line: 1, column: 2 },
                      end: { line: 2, column: 0 }
                  }
              }, {
                  type: 'ExpressionStatement',
                  expression: {
                      type: 'Identifier',
                      name: 'error',
                      range: [14, 19],
                      loc: {
                          start: { line: 2, column: 0 },
                          end: { line: 2, column: 5 }
                      }
                  },
                  range: [14, 20],
                  loc: {
                      start: { line: 2, column: 0 },
                      end: { line: 2, column: 6 }
                  }
              }],
              range: [0, 22],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 8 }
              }
          },
  
          '{ throw error// Comment\nerror; }': {
              type: 'BlockStatement',
              body: [{
                  type: 'ThrowStatement',
                  argument: {
                      type: 'Identifier',
                      name: 'error',
                      range: [8, 13],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 13 }
                      }
                  },
                  range: [2, 24],
                  loc: {
                      start: { line: 1, column: 2 },
                      end: { line: 2, column: 0 }
                  }
              }, {
                  type: 'ExpressionStatement',
                  expression: {
                      type: 'Identifier',
                      name: 'error',
                      range: [24, 29],
                      loc: {
                          start: { line: 2, column: 0 },
                          end: { line: 2, column: 5 }
                      }
                  },
                  range: [24, 30],
                  loc: {
                      start: { line: 2, column: 0 },
                      end: { line: 2, column: 6 }
                  }
              }],
              range: [0, 32],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 8 }
              }
          },
  
          '{ throw error/* Multiline\nComment */error; }': {
              type: 'BlockStatement',
              body: [{
                  type: 'ThrowStatement',
                  argument: {
                      type: 'Identifier',
                      name: 'error',
                      range: [8, 13],
                      loc: {
                          start: { line: 1, column: 8 },
                          end: { line: 1, column: 13 }
                      }
                  },
                  range: [2, 36],
                  loc: {
                      start: { line: 1, column: 2 },
                      end: { line: 2, column: 10 }
                  }
              }, {
                  type: 'ExpressionStatement',
                  expression: {
                      type: 'Identifier',
                      name: 'error',
                      range: [36, 41],
                      loc: {
                          start: { line: 2, column: 10 },
                          end: { line: 2, column: 15 }
                      }
                  },
                  range: [36, 42],
                  loc: {
                      start: { line: 2, column: 10 },
                      end: { line: 2, column: 16 }
                  }
              }],
              range: [0, 44],
              loc: {
                  start: { line: 1, column: 0 },
                  end: { line: 2, column: 18 }
              }
          }
  
      },
  
      'Source elements': {
  
          '': {
              type: 'Program',
              body: [],
              range: [0, 0],
              loc: {
                  start: { line: 0, column: 0 },
                  end: { line: 0, column: 0 }
              },
              tokens: []
          }
      }
  };
  
  // Special handling for regular expression literal since we need to
  // convert it to a string literal, otherwise it will be decoded
  // as object "{}" and the regular expression would be lost.
  function adjustRegexLiteral(key, value) {
      'use strict';
      if (key === 'value' && value instanceof RegExp) {
          value = value.toString();
      }
      return value;
  }
  
  if (typeof window === 'undefined') {
      var esprima = require('./3rdparty/esprima');
      var escodegen = require('../escodegen');
  }
  
  function NotMatchingError(expected, actual) {
      'use strict';
      Error.call(this, 'Expected ');
      this.expected = expected;
      this.actual = actual;
  }
  NotMatchingError.prototype = new Error();
  
  function testIdentity(code, syntax) {
      'use strict';
      var expected, tree, actual, actual2, options, StringObject;
  
      // alias, so that JSLint does not complain.
      StringObject = String;
  
      options = {
          comment: false,
          range: false,
          loc: false,
          tokens: false,
          raw: false
      };
  
      try {
          tree = esprima.parse(code, options);
          expected = JSON.stringify(tree, adjustRegexLiteral, 4);
          tree = esprima.parse(escodegen.generate(tree), options);
          actual = JSON.stringify(tree, adjustRegexLiteral, 4);
          tree = esprima.parse(escodegen.generate(syntax), options);
          actual2 = JSON.stringify(tree, adjustRegexLiteral, 4);
      } catch (e) {
          throw new NotMatchingError(expected, e.toString());
      }
      if (expected !== actual) {
          throw new NotMatchingError(expected, actual);
      }
      if (expected !== actual2) {
          throw new NotMatchingError(expected, actual2);
      }
  }
  
  function testGenerate(expected, result) {
      'use strict';
      var actual, options;
  
      options = {
          indent: '    ',
          parse: esprima.parse
      };
  
      try {
          actual = escodegen.generate(result.generateFrom, options);
      } catch (e) {
          throw new NotMatchingError(expected, e.toString());
      }
      if (expected !== actual) {
          throw new NotMatchingError(expected, actual);
      }
  }
  
  function isGeneratorIdentityFixture(result) {
      'use strict';
      return !result.hasOwnProperty('generateFrom') &&
          !result.hasOwnProperty('result');
  }
  
  function runTest(code, result) {
      'use strict';
      if (result.hasOwnProperty('generateFrom')) {
          testGenerate(code, result);
      } else {
          testIdentity(code, result);
      }
  }
  
  (function () {
      'use strict';
  
      var total = 0,
          failures = [],
          tick = new Date(),
          expected,
          header;
  
      Object.keys(data).forEach(function (category) {
          Object.keys(data[category]).forEach(function (source) {
              total += 1;
              expected = data[category][source];
              try {
                  runTest(source, expected);
              } catch (e) {
                  e.source = source;
                  failures.push(e);
              }
          });
      });
      tick = (new Date()) - tick;
  
      header = total + ' tests. ' + failures.length + ' failures. ' +
          tick + ' ms';
      if (failures.length) {
          console.error(header);
          failures.forEach(function (failure) {
              console.log(failure);
              console.error(failure.source + ': Expected\n    ' +
                  failure.source.split('\n').join('\n    ') +
                  '\nto match\n    ' + failure.actual);
          });
      } else {
          console.log(header);
      }
      process.exit(failures.length === 0 ? 0 : 1);
  }());
  /* vim: set sw=4 ts=4 et tw=80 : */
  