picasso.parser.tokens
Class EOFToken
java.lang.Object
picasso.parser.tokens.Token
picasso.parser.tokens.EOFToken
public class EOFToken
- extends Token
This represents an end-of-file token. Uses the singleton pattern because
there's no reason to have more than one such token. For equals, this compares
false to any object other than an EOFToken
- Author:
- Owen Astrachan, Sara Sprenkle
Methods inherited from class picasso.parser.tokens.Token |
toString |
Methods inherited from class java.lang.Object |
getClass, hashCode, notify, notifyAll, wait, wait, wait |
getInstance
public static EOFToken getInstance()
- Returns:
- an EOFToken (singleton)
equals
public boolean equals(java.lang.Object o)
- Overrides:
equals
in class java.lang.Object
- Returns:
- true of o is an EOFToken, else return false
isConstant
public boolean isConstant()
- Specified by:
isConstant
in class Token
- Returns:
- true iff this Token represents a constant
isFunction
public boolean isFunction()
- Specified by:
isFunction
in class Token
- Returns:
- true iff this Token represents a function