ast
Class InstanceofExpr

java.lang.Object
  ast.ASTNode
      ast.Expr
          ast.InstanceofExpr

public class InstanceofExpr
extends Expr

The InstanceofExpr class represents an instanceof expression. It contains a lefthand expression (expr), a righthand type name (type), and a flag indicating whether the instanceof is an upcheck (upcheck).

See Also:

ASTNode, Expr

Field Summary

protected Expr	expr The lefthand expression
protected java.lang.String	type The righthand type
protected boolean	upcheck Boolean indicating whether this is an upcheck (checking whether one type is instanceof a super type -- always true

Fields inherited from class ast.ASTNode

charNum, lineNum, lineStr

Constructor Summary

InstanceofExpr(int lineNum, Expr expr, java.lang.String type)
InstanceofExpr constructor

Method Summary

java.lang.Object	accept(Visitor v) Visitor method
Expr	getExpr() Get the lefthand expression
java.lang.String	getType() Get the righthand type
boolean	getUpCheck() Is this an upcheck? i.e., checking whether one type is an instanceof a super type (always true)
void	setUpCheck(boolean upcheck) Set whether the instanceof is an upcheck i.e., checking whether one type is an instanceof a super type (always true)

Methods inherited from class ast.Expr

getExprType, setExprType

Methods inherited from class ast.ASTNode

getLineNum

Methods inherited from class java.lang.Object

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

Field Detail

expr

protected Expr expr

The lefthand expression

type

protected java.lang.String type

The righthand type

upcheck

protected boolean upcheck

Boolean indicating whether this is an upcheck (checking whether one type is instanceof a super type -- always true

Constructor Detail

InstanceofExpr

public InstanceofExpr(int lineNum,
                      Expr expr,
                      java.lang.String type)

InstanceofExpr constructor

Parameters:

lineNum - source line number corresponding to this AST node

expr - the lefthand expression

type - the righthand type

Method Detail

getExpr

public Expr getExpr()

Get the lefthand expression

Returns:

expression

getType

public java.lang.String getType()

Get the righthand type

Returns:

type

getUpCheck

public boolean getUpCheck()

Is this an upcheck? i.e., checking whether one type is an instanceof a super type (always true)

Returns:

boolean indicating whether this cast is an upcheck

setUpCheck

public void setUpCheck(boolean upcheck)

Set whether the instanceof is an upcheck i.e., checking whether one type is an instanceof a super type (always true)

Parameters:

upcheck - boolean indicating whether check is an upcheck

accept

public java.lang.Object accept(Visitor v)

Visitor method

Specified by:

accept in class Expr

Parameters:

v - visitor object

Returns:

result of visiting this node

See Also:

Visitor