org.eigenbase.rex
Class RexProgramBuilder.UsageVisitor

java.lang.Object
  org.eigenbase.rex.RexVisitorImpl<Void>
      org.eigenbase.rex.RexProgramBuilder.UsageVisitor

All Implemented Interfaces:

RexVisitor<Void>

Enclosing class:

RexProgramBuilder

private class RexProgramBuilder.UsageVisitor
extends RexVisitorImpl<Void>

Visitor which marks which expressions are used.

Field Summary

(package private) int	unusedCount
(package private) boolean[]	usedExprs

Fields inherited from class org.eigenbase.rex.RexVisitorImpl

deep

Constructor Summary

RexProgramBuilder.UsageVisitor()

Method Summary

Void	visitLocalRef(RexLocalRef localRef)

Methods inherited from class org.eigenbase.rex.RexVisitorImpl

visitArrayAnd, visitArrayOr, visitCall, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitInputRef, visitLiteral, visitOver, visitRangeRef

Methods inherited from class java.lang.Object

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

Field Detail

usedExprs

final boolean[] usedExprs

unusedCount

int unusedCount

Constructor Detail

RexProgramBuilder.UsageVisitor

public RexProgramBuilder.UsageVisitor()

Method Detail

visitLocalRef

public Void visitLocalRef(RexLocalRef localRef)

Specified by:

visitLocalRef in interface RexVisitor<Void>

Overrides:

visitLocalRef in class RexVisitorImpl<Void>