text: #-----------------------------------------------------------------
  # ** ATTENTION **
  # This code was automatically generated from the file:
  # _c_ast.cfg 
  #
  # Do not modify it directly. Modify the configuration file and
  # run the generator again.
  # ** ** *** ** **
  #
  # pycparser: c_ast.py
  #
  # AST Node classes.
  #
  # Copyright (C) 2008-2011, Eli Bendersky
  # License: BSD
  #-----------------------------------------------------------------
  
  
  import sys
  
  
  class Node(object):
      """ Abstract base class for AST nodes.
      """
      def children(self):
          """ A sequence of all children that are Nodes
          """
          pass
  
      def show(self, buf=sys.stdout, offset=0, attrnames=False, showcoord=False):
          """ Pretty print the Node and all its attributes and
              children (recursively) to a buffer.
              
              file:   
                  Open IO buffer into which the Node is printed.
              
              offset: 
                  Initial offset (amount of leading spaces) 
              
              attrnames:
                  True if you want to see the attribute names in
                  name=value pairs. False to only see the values.
              
              showcoord:
                  Do you want the coordinates of each Node to be
                  displayed.
          """
          lead = ' ' * offset
          buf.write(lead + self.__class__.__name__+': ')
  
          if self.attr_names:
              if attrnames:
                  nvlist = [(n, getattr(self,n)) for n in self.attr_names]
                  attrstr = ', '.join('%s=%s' % nv for nv in nvlist)
              else:
                  vlist = [getattr(self, n) for n in self.attr_names]
                  attrstr = ', '.join('%s' % v for v in vlist)
              buf.write(attrstr)
  
          if showcoord:
              buf.write(' (at %s)' % self.coord)
          buf.write('\n')
  
          for c in self.children():
              c.show(buf, offset + 2, attrnames, showcoord)
  
  
  class NodeVisitor(object):
      """ A base NodeVisitor class for visiting c_ast nodes. 
          Subclass it and define your own visit_XXX methods, where
          XXX is the class name you want to visit with these 
          methods.
          
          For example:
          
          class ConstantVisitor(NodeVisitor):
              def __init__(self):
                  self.values = []
              
              def visit_Constant(self, node):
                  self.values.append(node.value)
  
          Creates a list of values of all the constant nodes 
          encountered below the given node. To use it:
          
          cv = ConstantVisitor()
          cv.visit(node)
          
          Notes:
          
          *   generic_visit() will be called for AST nodes for which 
              no visit_XXX method was defined. 
          *   The children of nodes for which a visit_XXX was 
              defined will not be visited - if you need this, call
              generic_visit() on the node. 
              You can use:
                  NodeVisitor.generic_visit(self, node)
          *   Modeled after Python's own AST visiting facilities
              (the ast module of Python 3.0)
      """
      def visit(self, node):
          """ Visit a node. 
          """
          method = 'visit_' + node.__class__.__name__
          visitor = getattr(self, method, self.generic_visit)
          return visitor(node)
          
      def generic_visit(self, node):
          """ Called if no explicit visitor function exists for a 
              node. Implements preorder visiting of the node.
          """
          for c in node.children():
              self.visit(c)
  
  
  class ArrayDecl(Node):
      def __init__(self, type, dim, coord=None):
          self.type = type
          self.dim = dim
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.type is not None: nodelist.append(self.type)
          if self.dim is not None: nodelist.append(self.dim)
          return tuple(nodelist)
  
      attr_names = ()
  
  class ArrayRef(Node):
      def __init__(self, name, subscript, coord=None):
          self.name = name
          self.subscript = subscript
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.name is not None: nodelist.append(self.name)
          if self.subscript is not None: nodelist.append(self.subscript)
          return tuple(nodelist)
  
      attr_names = ()
  
  class Assignment(Node):
      def __init__(self, op, lvalue, rvalue, coord=None):
          self.op = op
          self.lvalue = lvalue
          self.rvalue = rvalue
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.lvalue is not None: nodelist.append(self.lvalue)
          if self.rvalue is not None: nodelist.append(self.rvalue)
          return tuple(nodelist)
  
      attr_names = ('op',)
  
  class BinaryOp(Node):
      def __init__(self, op, left, right, coord=None):
          self.op = op
          self.left = left
          self.right = right
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.left is not None: nodelist.append(self.left)
          if self.right is not None: nodelist.append(self.right)
          return tuple(nodelist)
  
      attr_names = ('op',)
  
  class Break(Node):
      def __init__(self, coord=None):
          self.coord = coord
  
      def children(self):
          return ()
  
      attr_names = ()
  
  class Case(Node):
      def __init__(self, expr, stmt, coord=None):
          self.expr = expr
          self.stmt = stmt
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.expr is not None: nodelist.append(self.expr)
          if self.stmt is not None: nodelist.append(self.stmt)
          return tuple(nodelist)
  
      attr_names = ()
  
  class Cast(Node):
      def __init__(self, to_type, expr, coord=None):
          self.to_type = to_type
          self.expr = expr
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.to_type is not None: nodelist.append(self.to_type)
          if self.expr is not None: nodelist.append(self.expr)
          return tuple(nodelist)
  
      attr_names = ()
  
  class Compound(Node):
      def __init__(self, block_items, coord=None):
          self.block_items = block_items
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.block_items is not None: nodelist.extend(self.block_items)
          return tuple(nodelist)
  
      attr_names = ()
  
  class CompoundLiteral(Node):
      def __init__(self, type, init, coord=None):
          self.type = type
          self.init = init
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.type is not None: nodelist.append(self.type)
          if self.init is not None: nodelist.append(self.init)
          return tuple(nodelist)
  
      attr_names = ()
  
  class Constant(Node):
      def __init__(self, type, value, coord=None):
          self.type = type
          self.value = value
          self.coord = coord
  
      def children(self):
          nodelist = []
          return tuple(nodelist)
  
      attr_names = ('type','value',)
  
  class Continue(Node):
      def __init__(self, coord=None):
          self.coord = coord
  
      def children(self):
          return ()
  
      attr_names = ()
  
  class Decl(Node):
      def __init__(self, name, quals, storage, funcspec, type, init, bitsize, coord=None):
          self.name = name
          self.quals = quals
          self.storage = storage
          self.funcspec = funcspec
          self.type = type
          self.init = init
          self.bitsize = bitsize
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.type is not None: nodelist.append(self.type)
          if self.init is not None: nodelist.append(self.init)
          if self.bitsize is not None: nodelist.append(self.bitsize)
          return tuple(nodelist)
  
      attr_names = ('name','quals','storage','funcspec',)
  
  class DeclList(Node):
      def __init__(self, decls, coord=None):
          self.decls = decls
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.decls is not None: nodelist.extend(self.decls)
          return tuple(nodelist)
  
      attr_names = ()
  
  class Default(Node):
      def __init__(self, stmt, coord=None):
          self.stmt = stmt
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.stmt is not None: nodelist.append(self.stmt)
          return tuple(nodelist)
  
      attr_names = ()
  
  class DoWhile(Node):
      def __init__(self, cond, stmt, coord=None):
          self.cond = cond
          self.stmt = stmt
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.cond is not None: nodelist.append(self.cond)
          if self.stmt is not None: nodelist.append(self.stmt)
          return tuple(nodelist)
  
      attr_names = ()
  
  class EllipsisParam(Node):
      def __init__(self, coord=None):
          self.coord = coord
  
      def children(self):
          return ()
  
      attr_names = ()
  
  class EmptyStatement(Node):
      def __init__(self, coord=None):
          self.coord = coord
  
      def children(self):
          return ()
  
      attr_names = ()
  
  class Enum(Node):
      def __init__(self, name, values, coord=None):
          self.name = name
          self.values = values
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.values is not None: nodelist.append(self.values)
          return tuple(nodelist)
  
      attr_names = ('name',)
  
  class Enumerator(Node):
      def __init__(self, name, value, coord=None):
          self.name = name
          self.value = value
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.value is not None: nodelist.append(self.value)
          return tuple(nodelist)
  
      attr_names = ('name',)
  
  class EnumeratorList(Node):
      def __init__(self, enumerators, coord=None):
          self.enumerators = enumerators
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.enumerators is not None: nodelist.extend(self.enumerators)
          return tuple(nodelist)
  
      attr_names = ()
  
  class ExprList(Node):
      def __init__(self, exprs, coord=None):
          self.exprs = exprs
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.exprs is not None: nodelist.extend(self.exprs)
          return tuple(nodelist)
  
      attr_names = ()
  
  class FileAST(Node):
      def __init__(self, ext, coord=None):
          self.ext = ext
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.ext is not None: nodelist.extend(self.ext)
          return tuple(nodelist)
  
      attr_names = ()
  
  class For(Node):
      def __init__(self, init, cond, next, stmt, coord=None):
          self.init = init
          self.cond = cond
          self.next = next
          self.stmt = stmt
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.init is not None: nodelist.append(self.init)
          if self.cond is not None: nodelist.append(self.cond)
          if self.__next__ is not None: nodelist.append(self.__next__)
          if self.stmt is not None: nodelist.append(self.stmt)
          return tuple(nodelist)
  
      attr_names = ()
  
  class FuncCall(Node):
      def __init__(self, name, args, coord=None):
          self.name = name
          self.args = args
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.name is not None: nodelist.append(self.name)
          if self.args is not None: nodelist.append(self.args)
          return tuple(nodelist)
  
      attr_names = ()
  
  class FuncDecl(Node):
      def __init__(self, args, type, coord=None):
          self.args = args
          self.type = type
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.args is not None: nodelist.append(self.args)
          if self.type is not None: nodelist.append(self.type)
          return tuple(nodelist)
  
      attr_names = ()
  
  class FuncDef(Node):
      def __init__(self, decl, param_decls, body, coord=None):
          self.decl = decl
          self.param_decls = param_decls
          self.body = body
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.decl is not None: nodelist.append(self.decl)
          if self.body is not None: nodelist.append(self.body)
          if self.param_decls is not None: nodelist.extend(self.param_decls)
          return tuple(nodelist)
  
      attr_names = ()
  
  class Goto(Node):
      def __init__(self, name, coord=None):
          self.name = name
          self.coord = coord
  
      def children(self):
          nodelist = []
          return tuple(nodelist)
  
      attr_names = ('name',)
  
  class ID(Node):
      def __init__(self, name, coord=None):
          self.name = name
          self.coord = coord
  
      def children(self):
          nodelist = []
          return tuple(nodelist)
  
      attr_names = ('name',)
  
  class IdentifierType(Node):
      def __init__(self, names, coord=None):
          self.names = names
          self.coord = coord
  
      def children(self):
          nodelist = []
          return tuple(nodelist)
  
      attr_names = ('names',)
  
  class If(Node):
      def __init__(self, cond, iftrue, iffalse, coord=None):
          self.cond = cond
          self.iftrue = iftrue
          self.iffalse = iffalse
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.cond is not None: nodelist.append(self.cond)
          if self.iftrue is not None: nodelist.append(self.iftrue)
          if self.iffalse is not None: nodelist.append(self.iffalse)
          return tuple(nodelist)
  
      attr_names = ()
  
  class Label(Node):
      def __init__(self, name, stmt, coord=None):
          self.name = name
          self.stmt = stmt
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.stmt is not None: nodelist.append(self.stmt)
          return tuple(nodelist)
  
      attr_names = ('name',)
  
  class NamedInitializer(Node):
      def __init__(self, name, expr, coord=None):
          self.name = name
          self.expr = expr
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.expr is not None: nodelist.append(self.expr)
          if self.name is not None: nodelist.extend(self.name)
          return tuple(nodelist)
  
      attr_names = ()
  
  class ParamList(Node):
      def __init__(self, params, coord=None):
          self.params = params
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.params is not None: nodelist.extend(self.params)
          return tuple(nodelist)
  
      attr_names = ()
  
  class PtrDecl(Node):
      def __init__(self, quals, type, coord=None):
          self.quals = quals
          self.type = type
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.type is not None: nodelist.append(self.type)
          return tuple(nodelist)
  
      attr_names = ('quals',)
  
  class Return(Node):
      def __init__(self, expr, coord=None):
          self.expr = expr
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.expr is not None: nodelist.append(self.expr)
          return tuple(nodelist)
  
      attr_names = ()
  
  class Struct(Node):
      def __init__(self, name, decls, coord=None):
          self.name = name
          self.decls = decls
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.decls is not None: nodelist.extend(self.decls)
          return tuple(nodelist)
  
      attr_names = ('name',)
  
  class StructRef(Node):
      def __init__(self, name, type, field, coord=None):
          self.name = name
          self.type = type
          self.field = field
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.name is not None: nodelist.append(self.name)
          if self.field is not None: nodelist.append(self.field)
          return tuple(nodelist)
  
      attr_names = ('type',)
  
  class Switch(Node):
      def __init__(self, cond, stmt, coord=None):
          self.cond = cond
          self.stmt = stmt
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.cond is not None: nodelist.append(self.cond)
          if self.stmt is not None: nodelist.append(self.stmt)
          return tuple(nodelist)
  
      attr_names = ()
  
  class TernaryOp(Node):
      def __init__(self, cond, iftrue, iffalse, coord=None):
          self.cond = cond
          self.iftrue = iftrue
          self.iffalse = iffalse
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.cond is not None: nodelist.append(self.cond)
          if self.iftrue is not None: nodelist.append(self.iftrue)
          if self.iffalse is not None: nodelist.append(self.iffalse)
          return tuple(nodelist)
  
      attr_names = ()
  
  class TypeDecl(Node):
      def __init__(self, declname, quals, type, coord=None):
          self.declname = declname
          self.quals = quals
          self.type = type
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.type is not None: nodelist.append(self.type)
          return tuple(nodelist)
  
      attr_names = ('declname','quals',)
  
  class Typedef(Node):
      def __init__(self, name, quals, storage, type, coord=None):
          self.name = name
          self.quals = quals
          self.storage = storage
          self.type = type
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.type is not None: nodelist.append(self.type)
          return tuple(nodelist)
  
      attr_names = ('name','quals','storage',)
  
  class Typename(Node):
      def __init__(self, quals, type, coord=None):
          self.quals = quals
          self.type = type
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.type is not None: nodelist.append(self.type)
          return tuple(nodelist)
  
      attr_names = ('quals',)
  
  class UnaryOp(Node):
      def __init__(self, op, expr, coord=None):
          self.op = op
          self.expr = expr
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.expr is not None: nodelist.append(self.expr)
          return tuple(nodelist)
  
      attr_names = ('op',)
  
  class Union(Node):
      def __init__(self, name, decls, coord=None):
          self.name = name
          self.decls = decls
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.decls is not None: nodelist.extend(self.decls)
          return tuple(nodelist)
  
      attr_names = ('name',)
  
  class While(Node):
      def __init__(self, cond, stmt, coord=None):
          self.cond = cond
          self.stmt = stmt
          self.coord = coord
  
      def children(self):
          nodelist = []
          if self.cond is not None: nodelist.append(self.cond)
          if self.stmt is not None: nodelist.append(self.stmt)
          return tuple(nodelist)
  
      attr_names = ()
  
  