openjava.syntax
Interface SyntaxRule

All Superinterfaces:

TokenID

All Known Implementing Classes:

AbstractSyntaxRule

public interface SyntaxRule

extends TokenID

The interface SyntaxRule represents a syntax rule.

Since:

%SOFTWARE% 1.0

Version:

1.0

Author:

Michiaki Tatsubori

See Also:

Object

Field Summary

Fields inherited from interface openjava.syntax.TokenID

ABSTRACT, ANDASSIGN, ASSIGN, BANG, BIT_AND, BIT_OR, BOOLEAN, BREAK, BYTE, CASE, CATCH, CHAR, CHARACTER_LITERAL, CLASS, COLON, COMMA, CONDITIONAL_AND, CONDITIONAL_OR, CONTINUE, DECREMENT, DEFAULT, DO, DOT, DOUBLE, DOUBLE_LITERAL, ELSE, EOF, EQUAL, EXTENDS, FALSE, FINAL, FINALLY, FLOAT, FLOAT_LITERAL, FOR, GREATER, GREATER_EQUAL, HOOK, IDENTIFIER, IF, IMPLEMENTS, IMPORT, INCREMENT, INSTANCEOF, INSTANTIATES, INT, INTEGER_LITERAL, INTERFACE, LBRACE, LBRACKET, LESS, LESS_EQUAL, LONG, LONG_LITERAL, LPAREN, LSHIFT, LSHIFTASSIGN, METACLASS, MINUS, MINUSASSIGN, NATIVE, NEW, NOT_EQUAL, NULL, ORASSIGN, PACKAGE, PLUS, PLUSASSIGN, PRIVATE, PROTECTED, PUBLIC, RBRACE, RBRACKET, REM, REMASSIGN, RETURN, RPAREN, RSIGNEDSHIFT, RSIGNEDSHIFTASSIGN, RUNSIGNEDSHIFT, RUNSIGNEDSHIFTASSIGN, SEMICOLON, SHORT, SLASH, SLASHASSIGN, STAR, STARASSIGN, STATIC, STRING_LITERAL, SUPER, SWITCH, SYNCHRONIZED, THIS, THROW, THROWS, TILDE, TRANSIENT, TRUE, TRY, VOID, VOLATILE, WHILE, XOR, XORASSIGN

Method Summary

ParseTree	consume(TokenSource token_src) Consumes tokens from the given token source following the rule.
SyntaxException	getSyntaxException() Returns the last syntax exception in consuming token source through the method consume(TokenSource).
boolean	lookahead(TokenSource token_src) Tests if the given token source follows this rule.

Method Detail

consume

public ParseTree consume(TokenSource token_src)
                  throws SyntaxException

Consumes tokens from the given token source following the rule.

Parameters:

token_src - token source to consume.

Returns:

null in case of fail to consume, otherwise a parse tree object consumed following this rule.

Throws:

SyntaxException - in case to fail to consume.

lookahead

public boolean lookahead(TokenSource token_src)

Tests if the given token source follows this rule.

Parameters:

token_src - token source to consume.

Returns:

true if the given token source can be consumed safely.

getSyntaxException

public SyntaxException getSyntaxException()

Returns the last syntax exception in consuming token source through the method consume(TokenSource).

Returns:

the syntax exception.