Class StackManipStmt

java.lang.Object

EDU.purdue.cs.bloat.tree.Node

EDU.purdue.cs.bloat.tree.Stmt

EDU.purdue.cs.bloat.tree.StackManipStmt

All Implemented Interfaces:

Assign

public class StackManipStmt
extends Stmt
implements Assign

StackManipStmt represents the opcodes that manipulate the stack such as swap and dup.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DUP
static final int	DUP_X1
static final int	DUP_X2
static final int	DUP2
static final int	DUP2_X1
static final int	DUP2_X2
static final int	SWAP

Fields inherited from class Node

parent

Constructor Summary

Constructors

Constructor	Description
StackManipStmt(StackExpr[] target, StackExpr[] source, int kind)	Constructor.

Method Summary

Modifier and Type	Method	Description
Object	clone()
DefExpr[]	defs()	Returns the expressions that may be modified (defined) by this expression or statement.
int	kind()
StackExpr[]	source()
StackExpr[]	target()
void	visit(TreeVisitor visitor)
void	visitForceChildren(TreeVisitor visitor)	Visit the children of this node.

Methods inherited from class Stmt

cleanupOnly

Methods inherited from class Node

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

Methods inherited from class Object

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

Field Details

SWAP

public static final int SWAP

See Also:

• Constant Field Values

DUP

public static final int DUP

See Also:

• Constant Field Values

DUP_X1

public static final int DUP_X1

See Also:

• Constant Field Values

DUP_X2

public static final int DUP_X2

See Also:

• Constant Field Values

DUP2

public static final int DUP2

See Also:

• Constant Field Values

DUP2_X1

public static final int DUP2_X1

See Also:

• Constant Field Values

DUP2_X2

public static final int DUP2_X2

See Also:

• Constant Field Values

Constructor Details

StackManipStmt

public StackManipStmt(StackExpr[] target,
 StackExpr[] source,
 int kind)

Constructor.

Parameters:

target - The new contents of the stack

source - The old contents of the stack

kind - The kind of stack manipulation (SWAP, DUP, etc.) to take place.

Method Details

defs

public DefExpr[] defs()

Description copied from interface: Assign

Returns the expressions that may be modified (defined) by this expression or statement.

Specified by:

defs in interface Assign

target

public StackExpr[] target()

source

public StackExpr[] source()

kind

public int kind()

visit

public void visit(TreeVisitor visitor)

Specified by:

visit in class Node

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

clone

public Object clone()

Specified by:

clone in class Stmt