|
|||||||||
| Home >> All >> java_cup >> [ runtime overview ] | PREV CLASS NEXT CLASS | ||||||||
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD |
DETAIL: FIELD | CONSTR | METHOD | ||||||||
java_cup.runtime
Class Symbol
java.lang.Objectjava_cup.runtime.Symbol
- public class Symbol
- extends java.lang.Object
Defines the Symbol class, which is used to represent all terminals and nonterminals while parsing. The lexer should pass CUP Symbols and CUP returns a Symbol.
- Version:
- last updated: 7/3/96
| Field Summary | |
int |
left
The data passed to parser |
int |
parse_state
The parse state to be recorded on the parse stack with this symbol. |
int |
right
The data passed to parser |
int |
sym
The symbol number of the terminal or non terminal being represented |
(package private) boolean |
used_by_parser
This allows us to catch some errors caused by scanners recycling symbols. |
java.lang.Object |
value
|
| Constructor Summary | |
Symbol(int sym_num)
Constructor for no value or l,r |
|
Symbol(int sym_num,
int state)
Constructor to give a start state |
|
Symbol(int sym_num,
int l,
int r)
Constructor for no value |
|
Symbol(int id,
int l,
int r,
java.lang.Object o)
Constructor for l,r values |
|
Symbol(int id,
java.lang.Object o)
Constructor for no l,r values |
|
| Method Summary | |
java.lang.String |
toString()
Printing this token out. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
sym
public int sym
- The symbol number of the terminal or non terminal being represented
parse_state
public int parse_state
- The parse state to be recorded on the parse stack with this symbol.
This field is for the convenience of the parser and shouldn't be
modified except by the parser.
used_by_parser
boolean used_by_parser
- This allows us to catch some errors caused by scanners recycling
symbols. For the use of the parser only. [CSA, 23-Jul-1999]
left
public int left
- The data passed to parser
right
public int right
- The data passed to parser
value
public java.lang.Object value
| Constructor Detail |
Symbol
public Symbol(int id,
int l,
int r,
java.lang.Object o)
- Constructor for l,r values
Symbol
public Symbol(int id,
java.lang.Object o)
- Constructor for no l,r values
Symbol
public Symbol(int sym_num,
int l,
int r)
- Constructor for no value
Symbol
public Symbol(int sym_num)
- Constructor for no value or l,r
Symbol
public Symbol(int sym_num,
int state)
- Constructor to give a start state
| Method Detail |
toString
public java.lang.String toString()
- Printing this token out. (Override for pretty-print).
|
|||||||||
| Home >> All >> java_cup >> [ runtime overview ] | PREV CLASS NEXT CLASS | ||||||||
|
SUMMARY: JAVADOC | SOURCE | DOWNLOAD | NESTED | FIELD | CONSTR | METHOD |
DETAIL: FIELD | CONSTR | METHOD | ||||||||