IfZeroStmt

java.lang.Object
- EDU.purdue.cs.bloat.tree.Node
- - EDU.purdue.cs.bloat.tree.Stmt
  - - EDU.purdue.cs.bloat.tree.JumpStmt
    - - EDU.purdue.cs.bloat.tree.IfStmt
      - EDU.purdue.cs.bloat.tree.IfZeroStmt

```
public class IfZeroStmt
extends IfStmt
```
IfZeroStmt evaluates an expression and executes one of its two branches depending on whether or not the expression evaluated to zero.

Field Summary
- Fields inherited from class EDU.purdue.cs.bloat.tree.IfStmt
  EQ, GE, GT, LE, LT, NE
- Fields inherited from class EDU.purdue.cs.bloat.tree.Node
  parent

Constructor Summary

Constructors
Constructor Description

IfZeroStmt(int comparison, Expr expr, Block trueTarget, Block falseTarget)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Object`	`clone()`
`Expr`	`expr()`
`void`	`visit(TreeVisitor visitor)`
`void`	`visitForceChildren(TreeVisitor visitor)`	Visit the children of this node.

Methods inherited from class EDU.purdue.cs.bloat.tree.IfStmt
comparison, falseTarget, negate, setFalseTarget, setTrueTarget, trueTarget

Methods inherited from class EDU.purdue.cs.bloat.tree.JumpStmt
catchTargets, copyInto

Methods inherited from class EDU.purdue.cs.bloat.tree.Stmt
cleanupOnly

Methods inherited from class EDU.purdue.cs.bloat.tree.Node
block, cleanup, hasParent, key, parent, replaceWith, replaceWith, setKey, setParent, setValueNumber, toString, valueNumber, visitChildren, visitOnly

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

- Constructor Detail
  - IfZeroStmt
```
public IfZeroStmt(int comparison,
                  Expr expr,
                  Block trueTarget,
                  Block falseTarget)
```
    Constructor.
    
    Parameters:
    
    comparison - Comparison operator.
    
    expr - An expression to be evaluated.
    
    trueTarget - Basic Block that is executed if the expression evaluates to zero.
    
    falseTarget - Basic Block that is executed if the expression evaluates to non-zero.
- Method Detail
  - expr
```
public Expr expr()
```
    Returns:
    
    The expression that is evaluated.
  - 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
  - visit
```
public void visit(TreeVisitor visitor)
```
    Specified by:
    
    visit in class Node
  - clone
```
public java.lang.Object clone()
```
    Specified by:
    
    clone in class Stmt