jltools.parse
Class Util

java.lang.Object
  |
  +--jltools.parse.Util

public class Util

extends java.lang.Object

Utility routines for use by the parser. Although some routines are static, the intended use is to instantiate this class on a ParserWrapper and use the resulting object in the parser.

Field Summary

protected NodeFactory	nf
protected ParserWrapper	parser
protected TypeSystem	ts

Constructor Summary

Util(ParserWrapper parser)
Construct a utility object for use by parser.

Method Summary

TypeNode	array(TypeNode n, int dims) Return a TypeNode representing a dims-dimensional array of n.
protected QualifierNode	exprToQualifier(Expr e) Helper for exprToType.
TypeNode	exprToType(Expr e) Convert e into a type, yielding a TypeNode.
static Position	pos(java.util.List l) Return the source position of the first element in the list.
static Position	pos(Node n) Return the source position of the Node.
static Position	pos(Token t) Return the position of the Token.
static Position	pos(Type n) Return the source position of the Type.
static Position	pos(VarDeclarator n) Return the source position of the declaration.
protected QualifierNode	prefixToQualifier(Prefix p) Helper for exprToType.
protected QualifierNode	typeToQualifier(TypeNode t) Helper for exprToType.

Methods inherited from class java.lang.Object

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

Field Detail

parser

protected ParserWrapper parser

nf

protected NodeFactory nf

ts

protected TypeSystem ts

Constructor Detail

Util

public Util(ParserWrapper parser)

Construct a utility object for use by parser.

Method Detail

pos

public static Position pos(Token t)

Return the position of the Token.

pos

public static Position pos(Type n)

Return the source position of the Type.

pos

public static Position pos(java.util.List l)

Return the source position of the first element in the list.

pos

public static Position pos(VarDeclarator n)

Return the source position of the declaration.

pos

public static Position pos(Node n)

Return the source position of the Node.

array

public TypeNode array(TypeNode n,
                      int dims)
               throws java.lang.Exception

Return a TypeNode representing a dims-dimensional array of n.

prefixToQualifier

protected QualifierNode prefixToQualifier(Prefix p)
                                   throws java.lang.Exception

Helper for exprToType.

typeToQualifier

protected QualifierNode typeToQualifier(TypeNode t)
                                 throws java.lang.Exception

Helper for exprToType.

exprToQualifier

protected QualifierNode exprToQualifier(Expr e)
                                 throws java.lang.Exception

Helper for exprToType.

exprToType

public TypeNode exprToType(Expr e)
                    throws java.lang.Exception

Convert e into a type, yielding a TypeNode. This is used by the cast_expression production.