net.sf.saffron.oj
Class OJValidator

java.lang.Object
  |
  +--openjava.ptree.util.ParseTreeVisitor
        |
        +--openjava.ptree.util.EvaluationShuttle
              |
              +--openjava.ptree.util.ScopeHandler
                    |
                    +--openjava.ptree.util.VariableBinder
                          |
                          +--net.sf.saffron.oj.OJValidator

public class OJValidator

extends VariableBinder

OJValidator makes sure that an expression is valid. It produces more meaningful error messages than code further down the line (for example OJQueryExpander) would produce.

Since:

25 April, 2002

Version:

$Id: //open/saffron/src/net/sf/saffron/oj/OJValidator.java#2 $

Author:

jhyde

Field Summary

Fields inherited from class openjava.ptree.util.ScopeHandler

Fields inherited from class openjava.ptree.util.EvaluationShuttle

Constructor Summary

OJValidator(Environment env)

Method Summary

Expression	evaluateUp(FieldAccess p)
Expression	evaluateUp(MethodCall p)
TypeName	evaluateUp(TypeName p)
private boolean	fieldExists(ParseTree expr, String name, Environment env)

Methods inherited from class openjava.ptree.util.VariableBinder

evaluateDown, evaluateDown, evaluateDown

Methods inherited from class openjava.ptree.util.ScopeHandler

evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, pop, push, pushClosedEnvironment

Methods inherited from class openjava.ptree.util.EvaluationShuttle

evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateDown, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, evaluateUp, getEnvironment, setEnvironment, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class openjava.ptree.util.ParseTreeVisitor

visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

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

Constructor Detail

OJValidator

public OJValidator(Environment env)

Method Detail

evaluateUp

public Expression evaluateUp(FieldAccess p)
                      throws ParseTreeException

Overrides:

evaluateUp in class EvaluationShuttle

ParseTreeException

evaluateUp

public Expression evaluateUp(MethodCall p)
                      throws ParseTreeException

Overrides:

evaluateUp in class EvaluationShuttle

ParseTreeException

evaluateUp

public TypeName evaluateUp(TypeName p)
                    throws ParseTreeException

Overrides:

evaluateUp in class EvaluationShuttle

ParseTreeException

fieldExists

private boolean fieldExists(ParseTree expr,
                            String name,
                            Environment env)