Package java_cup.runtime
Class Symbol
- java.lang.Object
-
- java_cup.runtime.Symbol
-
- Direct Known Subclasses:
ComplexSymbolFactory.ComplexSymbol
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
- Author:
- Frank Flannery
-
-
Field Summary
Fields Modifier and Type Field Description int
left
The data passed to parserint
parse_state
The parse state to be recorded on the parse stack with this symbol.int
right
The data passed to parserint
sym
The symbol number of the terminal or non terminal being representedjava.lang.Object
value
-
Constructor Summary
Constructors Constructor Description Symbol(int sym_num)
Constructor for no value or l,rSymbol(int id, int l, int r)
Constructor for no valueSymbol(int id, int l, int r, java.lang.Object o)
Constructor for l,r valuesSymbol(int id, Symbol left, Symbol right)
Symbol(int id, Symbol left, Symbol right, java.lang.Object o)
Symbol(int id, Symbol left, java.lang.Object o)
Symbol(int id, java.lang.Object o)
Constructor for no l,r values
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
toString()
Printing this token out.
-
-
-
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.
-
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, Symbol left, java.lang.Object o)
-
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 id, int l, int r)
Constructor for no value
-
Symbol
public Symbol(int sym_num)
Constructor for no value or l,r
-
-