kmy.jint.parser
Class Identifier

java.lang.Object
  |
  +--kmy.jint.parser.Identifier

public class Identifier

extends java.lang.Object

This class represents a simple (not qualified) identifier. All identifiers are listed in the NameTable and have a unique integer id. Thus, it is more efficient to compare and look up an Identifier then a String.

Field Summary

int	id Unique integer id for this identifier.
java.lang.String	name String representation of this identifier.
NameTable	nameTable Pointer to a NameTable where this Identifier is registered.

Constructor Summary

(package private)

Identifier(NameTable owner, java.lang.String name, int id) Constructor; meant to be used only by NameTable.

Method Summary

boolean	equals(java.lang.Object t) Idenifier is equal only to itself.
int	hashCode() Hashcode is just identifier's id.
boolean	isReserved() Some identifiers represent reserved keywords in Java and this method tests if this is one of these.
java.lang.String	toString() Returns identifier's string representation (its 'name' member).

Methods inherited from class java.lang.Object

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

Field Detail

nameTable

public NameTable nameTable

Pointer to a NameTable where this Identifier is registered. Normally there is only one NameTable around.

name

public java.lang.String name

String representation of this identifier.

id

public int id

Unique integer id for this identifier. All ids are negative.

Constructor Detail

Identifier

Identifier(NameTable owner,
           java.lang.String name,
           int id)

Constructor; meant to be used only by NameTable. Use NameTable.lookupAndInsert(String) if you want to get an Identifier. It will return the same identifier for all equal strings.

Method Detail

hashCode

public int hashCode()

Hashcode is just identifier's id.

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object t)

Idenifier is equal only to itself.

Overrides:

equals in class java.lang.Object

isReserved

public boolean isReserved()

Some identifiers represent reserved keywords in Java and this method tests if this is one of these.

toString

public java.lang.String toString()

Returns identifier's string representation (its 'name' member).

Overrides:

toString in class java.lang.Object