org.extex.ocpware.compiler.left
Class ChoiceLeft

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList<E>
          java.util.ArrayList<Left>
              org.extex.ocpware.compiler.left.ChoiceLeft

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<Left>, java.util.Collection<Left>, java.util.List<Left>, java.util.RandomAccess, Left

public class ChoiceLeft
extends java.util.ArrayList<Left>
implements Left

This class represents a list of alternative left items.

Version:

$Revision:6007 $

Author:

Gerd Neugebauer

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

ChoiceLeft()
Creates a new object.

Method Summary

java.util.List<java.lang.Integer>	genLeft(State state, CompilerState cs) Compile the left item and add the appropriate instructions to the state.
java.lang.String	toString()

Methods inherited from class java.util.ArrayList

add, add, addAll, addAll, clear, clone, contains, ensureCapacity, get, indexOf, isEmpty, lastIndexOf, remove, remove, removeRange, set, size, toArray, toArray, trimToSize

Methods inherited from class java.util.AbstractList

equals, hashCode, iterator, listIterator, listIterator, subList

Methods inherited from class java.util.AbstractCollection

containsAll, removeAll, retainAll

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.List

containsAll, equals, hashCode, iterator, listIterator, listIterator, removeAll, retainAll, subList

Constructor Detail

ChoiceLeft

public ChoiceLeft()

Creates a new object.

Method Detail

genLeft

public java.util.List<java.lang.Integer> genLeft(State state,
                                                 CompilerState cs)
                                          throws java.io.IOException,
                                                 ArgmentTooBigException,
                                                 AliasNotDefinedException,
                                                 IllegalOpcodeException

Compile the left item and add the appropriate instructions to the state. As a result a list of indices into the code is returned which should need to be fixed. This fix inserts the position of the code into the places given. Thus it is possible to put destinations for goto statements into the holes.

Specified by:

genLeft in interface Left

Parameters:

state - the current state

cs - the compiler state

Returns:

the list of instructions to fix

Throws:

AliasNotDefinedException - in case that no matching alias is known for a symbolic table reference

java.io.IOException - in case of an I/O error

ArgmentTooBigException - in case that an argument is encountered which does not fit into two bytes

IllegalOpcodeException - in case of an illegal op code

See Also:

Left.genLeft( org.extex.ocpware.compiler.parser.State, CompilerState)

toString

public java.lang.String toString()

Overrides:

toString in class java.util.AbstractCollection<Left>

See Also:

Object.toString()