CheckExpr

java.lang.Object
- EDU.purdue.cs.bloat.tree.Node
- - EDU.purdue.cs.bloat.tree.Expr
  - - EDU.purdue.cs.bloat.tree.CheckExpr

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

RCExpr, UCExpr, ZeroCheckExpr
```
public abstract class CheckExpr
extends Expr
```
CheckExpr is a superclass for classes representing a check on an expression. For instance, a CheckExpr is inserted into the tree before the divisor of a divide operation. The CheckExpr checks to make sure that the divisor is not zero.

See Also:

RCExpr, UCExpr, ZeroCheckExpr

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

CheckExpr(Expr expr, Type type)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equalsExpr(Expr other)`	Compares this expression to another.
`Expr`	`expr()`	Returns the expression being checked.
`int`	`exprHashCode()`	Returns the hash code for this expresion.
`void`	`visitForceChildren(TreeVisitor visitor)`	Visit the children of this node.

Methods inherited from class EDU.purdue.cs.bloat.tree.Expr
cleanupOnly, clone, comparator, copyInto, def, isDef, 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, visitOnly

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - CheckExpr
```
public CheckExpr(Expr expr,
                 Type type)
```
    Constructor.
    
    Parameters:
    
    expr - An expression that is to be checked.
    
    type - The type of this expression.
- Method Detail
  - visitForceChildren
```
public void visitForceChildren(TreeVisitor visitor)
```
    Description copied from class: Node
    
    Visit the children of this node. Not all Nodes will have children to visit.
    
    Specified by:
    
    visitForceChildren in class Node
  - expr
```
public Expr expr()
```
    Returns the expression being checked.
  - exprHashCode
```
public int exprHashCode()
```
    Description copied from class: Expr
    
    Returns the hash code for this expresion.
    
    Specified by:
    
    exprHashCode in class Expr
  - equalsExpr
```
public boolean equalsExpr(Expr other)
```
    Description copied from class: Expr
    
    Compares this expression to another.
    
    Specified by:
    
    equalsExpr in class Expr
    
    Parameters:
    
    other - Expr to which to compare this.