oops3
Class Parser.Node

Object
  AbstractCollection<E>
      AbstractList<Parser.Node>
          Parser.Node

All Implemented Interfaces:

Serializable, Iterable<Parser.Node>, Collection<Parser.Node>, List<Parser.Node>

Direct Known Subclasses:

Parser.Binding, Parser.Group, Parser.Nonterminal, Parser.Terminal

Enclosing class:

Parser

public abstract class Parser.Node
extends AbstractList<Parser.Node>
implements Serializable

basic behavior for the grammar tree: an immutable List with lookahead.

See Also:

Serialized Form

Field Summary

protected int	lookahead references Parser.lookaheads.
protected int	position position associated with node.

Fields inherited from class AbstractList

modCount

Constructor Summary

protected

Parser.Node(int position, int lookahead)

Method Summary

Parser.Node	get(int index) needs to be overridden when there are descendants.
BitSet	getLookahead() throws an exception if Lookahead has not been run or if lookahead was initialized out of range.
int	getPosition()
int	size() needs to be overridden when there are descendants.
abstract Object	visit(Visitor visitor) implements divide and conquer for Visitor.

Methods inherited from class AbstractList

add, add, addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

Methods inherited from class AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface List

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Field Detail

position

protected int position

position associated with node. This is only changed in Rule.init after a forward declaration.

lookahead

protected final int lookahead

references Parser.lookaheads.

Constructor Detail

Parser.Node

protected Parser.Node(int position,
                      int lookahead)

Method Detail

getPosition

public int getPosition()

getLookahead

public BitSet getLookahead()

throws an exception if Lookahead has not been run or if lookahead was initialized out of range.

See Also:

Parser.Pattern

get

public Parser.Node get(int index)

needs to be overridden when there are descendants.

Specified by:

get in interface List<Parser.Node>

Specified by:

get in class AbstractList<Parser.Node>

Throws:

IndexOutOfBoundsException

size

public int size()

needs to be overridden when there are descendants.

Specified by:

size in interface Collection<Parser.Node>

Specified by:

size in interface List<Parser.Node>

Specified by:

size in class AbstractCollection<Parser.Node>

Returns:

0

visit

public abstract Object visit(Visitor visitor)

implements divide and conquer for Visitor. Body must be return visitor.visit(this);.