openjava.syntax
Class JavaSyntaxRules

java.lang.Object
  |
  +--openjava.syntax.JavaSyntaxRules

All Implemented Interfaces:

TokenID

public class JavaSyntaxRules

extends Object

implements TokenID

Utility methods for syntax rules.

Since:

%SOFTWARE% 1.0

Version:

1.0

Author:

Michiaki Tatsubori

See Also:

Object

Field Summary

private static ParseException

lastException

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

Constructor Summary

private

JavaSyntaxRules()

Method Summary

private static void	adjustTokenSource(TokenSource token_src, Token last_token)
static Block	consumeBlock(TokenSource token_src)
static Block	consumeBlock(TokenSource token_src, Environment env) Consumes a block.
static Expression	consumeExpression(TokenSource token_src)
static Expression	consumeExpression(TokenSource token_src, Environment env) Consumes a single expression from given token source.
static Statement	consumeStatement(TokenSource token_src)
static Statement	consumeStatement(TokenSource token_src, Environment env) Consumes a statement.
static TypeName	consumeTypeName(TokenSource token_src) Consumes a type name.
private static ParseTree	correct(ParseTree ptree, Environment env)
static SyntaxException	getLastException()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

lastException

private static ParseException lastException

Constructor Detail

JavaSyntaxRules

private JavaSyntaxRules()

Method Detail

getLastException

public static SyntaxException getLastException()

correct

private static ParseTree correct(ParseTree ptree,
                                 Environment env)

adjustTokenSource

private static void adjustTokenSource(TokenSource token_src,
                                      Token last_token)

consumeExpression

public static final Expression consumeExpression(TokenSource token_src,
                                                 Environment env)

Consumes a single expression from given token source.

Parameters:

token_src - token source

env - environment

Returns:

null if this fail, otherwise an expression.

consumeExpression

public static final Expression consumeExpression(TokenSource token_src)

consumeStatement

public static final Statement consumeStatement(TokenSource token_src,
                                               Environment env)

Consumes a statement. This consumes only a pure statement excluding local variable declarations and local class declarations.

Parameters:

token_src - token source

Returns:

null if this fail, otherwise a statement.

consumeStatement

public static final Statement consumeStatement(TokenSource token_src)

consumeBlock

public static final Block consumeBlock(TokenSource token_src,
                                       Environment env)

Consumes a block.

Parameters:

token_src - token source

Returns:

null if this fail, otherwise a block.

consumeBlock

public static final Block consumeBlock(TokenSource token_src)

consumeTypeName

public static final TypeName consumeTypeName(TokenSource token_src)

Consumes a type name. Including primitive type and reference type.

Parameters:

token_src - token source

Returns:

null if this fail, otherwise a block.