java_cup.runtime

Interface SymbolFactory

All Known Implementing Classes:

ComplexSymbolFactory, DefaultSymbolFactory

public interface SymbolFactory

Creates the Symbols interface, which CUP uses as default

Version:

last updated 27-03-2006

Author:

Michael Petter

Method Summary

Modifier and Type	Method and Description
Symbol	newSymbol(String name, int id) newSymbol creates a basic symbol; used frequently for terminal symbols, like keywords
Symbol	newSymbol(String name, int id, Object value) newSymbol creates a basic symbol with an attached value; used frequently for terminal symbols like identifiers
Symbol	newSymbol(String name, int id, Symbol left, Symbol right) newSymbol creates a symbol, grouping other symbols with left/right locations; used frequently by the parser to implement non-terminal symbols
Symbol	newSymbol(String name, int id, Symbol left, Symbol right, Object value) newSymbol creates a symbol with a value, grouping other symbols with left/right locations; used frequently by the parser to implement non-terminal symbols
Symbol	startSymbol(String name, int id, int state) newSymbol creates the start symbol

Method Detail

newSymbol

Symbol newSymbol(String name,
                 int id,
                 Symbol left,
                 Symbol right,
                 Object value)

newSymbol creates a symbol with a value, grouping other symbols with left/right locations; used frequently by the parser to implement non-terminal symbols

Parameters:

name - Textual name for the Symbol for verbose error messages

id - enum value associated with this symbol, generated by cup via sym.java

left - symbol, to take the left location from

right - symbol, to take the right location from

value - value, attached to this symbol

newSymbol

Symbol newSymbol(String name,
                 int id,
                 Symbol left,
                 Symbol right)

newSymbol creates a symbol, grouping other symbols with left/right locations; used frequently by the parser to implement non-terminal symbols

Parameters:

name - Textual name for the Symbol for verbose error messages

id - enum value associated with this symbol, generated by cup via sym.java

left - symbol, to take the left location from

right - symbol, to take the right location from

newSymbol

Symbol newSymbol(String name,
                 int id,
                 Object value)

newSymbol creates a basic symbol with an attached value; used frequently for terminal symbols like identifiers

Parameters:

name - Textual name for the Symbol for verbose error messages

id - enum value associated with this symbol, generated by cup via sym.java

value - value, attached to this symbol

newSymbol

Symbol newSymbol(String name,
                 int id)

newSymbol creates a basic symbol; used frequently for terminal symbols, like keywords

Parameters:

name - Textual name for the Symbol for verbose error messages

id - enum value associated with this symbol, generated by cup via sym.java

value - value, attached to this symbol

startSymbol

Symbol startSymbol(String name,
                   int id,
                   int state)

newSymbol creates the start symbol

Parameters:

name - Textual name for the Symbol for verbose error messages

id - enum value associated with this symbol, generated by cup via sym.java

left - symbol, to take the left location from

right - symbol, to take the right location from

value - value, attached to this symbol