Package EDU.purdue.cs.bloat.tree

Class VarExpr

java.lang.Object

EDU.purdue.cs.bloat.tree.Node

EDU.purdue.cs.bloat.tree.Expr

EDU.purdue.cs.bloat.tree.DefExpr

EDU.purdue.cs.bloat.tree.MemExpr

EDU.purdue.cs.bloat.tree.VarExpr

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

LocalExpr, StackExpr

public abstract class VarExpr
extends MemExpr

VarExpr represents an expression that accesses a local variable or a variable on the stack.

See Also:

StackExpr, LocalExpr, DefExpr

Field Summary

Fields inherited from class EDU.purdue.cs.bloat.tree.Expr

type

Fields inherited from class EDU.purdue.cs.bloat.tree.Node

parent

Constructor Summary

Constructors

Constructor	Description
VarExpr(int index, Type type)	Constructor.

Method Summary

Modifier and Type	Method	Description
DefExpr	def()	Returns the expression that defines this expression.
int	index()
void	setIndex(int index)

Methods inherited from class EDU.purdue.cs.bloat.tree.DefExpr

addUse, cleanupOnly, hasUse, isDef, removeUse, uses, version

Methods inherited from class EDU.purdue.cs.bloat.tree.Expr

clone, comparator, copyInto, equalsExpr, exprHashCode, setDef, setType, stmt, type

Methods inherited from class EDU.purdue.cs.bloat.tree.Node

block, cleanup, copyInto, hasParent, key, parent, replaceWith, replaceWith, setKey, setParent, setValueNumber, toString, valueNumber, visit, visitChildren, visitForceChildren, visitOnly

Methods inherited from class java.lang.Object

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

Constructor Detail

VarExpr

public VarExpr(int index,
               Type type)

Constructor.

Parameters:

index - Index giving location of expression. For instance, the number local variable represented or the position of the stack variable represented.

type - Type (descriptor) of this expression.

Method Detail

setIndex

public void setIndex(int index)

index

public int index()

def

public DefExpr def()

Returns the expression that defines this expression.

Overrides:

def in class Expr