xtc.parser
Class ValueChecker

java.lang.Object
  xtc.tree.Visitor
      xtc.parser.ValueChecker

public class ValueChecker
extends Visitor

Visitor to ensure that every alternative has a semantic value. This visitor assumes that the entire grammar is contained in a single module and that any automatically deduced semantic values, including value elements, have been added to the grammar.

Version:

$Revision: 1.12 $

Author:

Robert Grimm

Field Summary

protected Analyzer	analyzer The analyzer.
protected java.util.List<Element>	elements The list of elements.
protected Runtime	runtime The runtime.

Constructor Summary

ValueChecker(Runtime runtime, Analyzer analyzer)
Create a new value checker.

Method Summary

void	visit(FullProduction p) Visit the specified full production.
void	visit(Module m) Visit the specified module.
void	visit(OrderedChoice c) Visit the specified choice.
void	visit(Sequence s) Visit the specified sequence.

Methods inherited from class xtc.tree.Visitor

dispatch, equals, hashCode, iterate, map, mapInPlace, unableToVisit, visit

Methods inherited from class java.lang.Object

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

Field Detail

runtime

protected Runtime runtime

The runtime.

analyzer

protected Analyzer analyzer

The analyzer.

elements

protected java.util.List<Element> elements

The list of elements.

Constructor Detail

ValueChecker

public ValueChecker(Runtime runtime,
                    Analyzer analyzer)

Create a new value checker.

Parameters:

runtime - The runtime.

analyzer - The analyzer.

Method Detail

visit

public void visit(Module m)

Visit the specified module.

visit

public void visit(FullProduction p)

Visit the specified full production.

visit

public void visit(OrderedChoice c)

Visit the specified choice.

visit

public void visit(Sequence s)

Visit the specified sequence.