org.antlr.symtab

Class StringTable

java.lang.Object

org.antlr.symtab.StringTable

public class StringTable
extends Object

A unique set of strings mapped to a monotonically increasing index. These indexes often useful to bytecode interpreters that have instructions referring to strings by unique integer. Indexing is from 0. We can also get them back out in original order. Yes, I know that this is similar to String.intern() but in this case, I need the index out not just to make these strings unique.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	index
protected LinkedHashMap<String,Integer>	table

Constructor Summary

Constructors

Constructor and Description
StringTable()

Method Summary

Modifier and Type	Method and Description
int	add(String s)
int	getNumberOfStrings()
String[]	toArray() Return an array, possibly of length zero, with all strings sitting at their appropriate index within the array.
List<String>	toList() Return a List, possibly of length zero, with all strings sitting at their appropriate index within the array.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

table

protected LinkedHashMap<String,Integer> table

index

protected int index

Constructor Detail

StringTable

public StringTable()

Method Detail

add

public int add(String s)

toArray

public String[] toArray()

Return an array, possibly of length zero, with all strings sitting at their appropriate index within the array.

toList

public List<String> toList()

Return a List, possibly of length zero, with all strings sitting at their appropriate index within the array.

getNumberOfStrings

public int getNumberOfStrings()

toString

public String toString()

Overrides:

toString in class Object