for.pegjs

  / ForToken __                                                                                                                        
    "(" &  __                                                                                                                          
    init:(ExpressionNoIn __ )? ";" __                                                                                                  
    test:(Expression __)? ";" __                                                                                                       
    update:(Expression __)?                                                                                                            
    ")" __                                                                                                                             
    body:Statement                                                                                                                     
    {                                                                                                                                  
      /*scope.pop();*/                                                                                                                 
      return {                                                                                                                         
        nodeType: "ForStatement",                                                                                                      
        init: extractOptional(init, 0),                                                                                                
        test: extractOptional(test, 0),                                                                                                
        update: extractOptional(update, 0),                                                                                            
        body: body                                                                                                                     
      };                                                                                                                               
    }                                                                                                                                  
  / ForToken __                                                                                                                        
    "(" & __                                                                                                                           
    declarations:VariableDecl __ ";" __                                                                                                
    test:(Expression __)? ";" __                                                                                                       
    update:(Expression __)?                                                                                                            
    ")" __                                                                                                                             
    body:Statement                                                                                                                     
    {                                                                                                                                  
      /*scope.pop();*/                                                                                                                 
      return {                                                                                                                         
        nodeType: "ForStatement",                                                                                                      
        init: {                                                                                                                        
          nodeType: "VariableDeclaration",                                                                                             
          declarations: declarations,                                                                                                  
          kind: "var"                                                                                                                  
        },                                                                                                                             
        test: extractOptional(test, 0),                                                                                                
        update: extractOptional(update, 0),                                                                                            
        body: body                                                                                                                     
      };                                                                                                                               
    }                                                                                                                                  
  / ForToken __                                                                                                                        
    "(" __                                                                                                                             
    left:LeftHandSideExpression __                                                                                                     
    InToken __                                                                                                                         
    right:Expression __                                                                                                                
    ")" __                                                                                                                             
    body:Statement                                                                                                                     
    {                                                                                                                                  
      /*scope.pop();*/                                                                                                                 
      return {                                                                                                                         
        nodeType: "ForInStatement",                                                                                                    
        left: left,                                                                                                                    
        right: right,                                                                                                                  
        body: body                                                                                                                     
      };                                                                                                                               
    }                                                                                                                                  
  / ForToken __                                                                                                                        
    "("  __                                                                                                                            
    declarations:VariableDecl __                                                                                                       
    InToken __                                                                                                                         
    right:Expression __                                                                                                                
    ")" __                                                                                                                             
    body:Statement                                                                                                                     
    {                                                                                                                                  
      /*scope.pop();*/                                                                                                                 
      return {                                                                                                                         
        nodeType: "ForInStatement",                                                                                                    
        left: {                                                                                                                        
          nodeType: "VariableDeclaration",                                                                                             
          declarations: declarations,                                                                                                  
          kind: "var"                                                                                                                  
        },                                                                                                                             
        right: right,                                                                                                                  
        body: body                                                                                                                     
      };                                                                                                                               
    }