org.checkerframework.dataflow.cfg.builder

Class ExtendedNode

java.lang.Object

org.checkerframework.dataflow.cfg.builder.ExtendedNode

Direct Known Subclasses:

ConditionalJump

public abstract class ExtendedNode
extends Object

An extended node can be one of several things (depending on its type):

• NODE: NodeHolder. An extended node of this type is just a wrapper for a Node (that cannot throw exceptions).
• EXCEPTION_NODE: NodeWithExceptionsHolder. A wrapper for a Node which can throw exceptions. It contains a label for every possible exception type the node might throw.
• UNCONDITIONAL_JUMP: UnconditionalJump. An unconditional jump to a label.
• TWO_TARGET_CONDITIONAL_JUMP: ConditionalJump. A conditional jump with two targets for both the 'then' and 'else' branch.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ExtendedNode.ExtendedNodeType Extended node types (description see above).

Field Summary

Fields

Modifier and Type	Field and Description
protected BlockImpl	block The basic block this extended node belongs to (as determined in phase two).
protected boolean	terminatesExecution Does this node terminate the execution? (e.g., "System.exit()")
protected ExtendedNode.ExtendedNodeType	type Type of this node.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ExtendedNode(ExtendedNode.ExtendedNodeType type) Create a new ExtendedNode.

Method Summary

Modifier and Type	Method and Description
BlockImpl	getBlock()
Label	getLabel() Returns the label associated with this extended node (only applicable if type is ExtendedNode.ExtendedNodeType.CONDITIONAL_JUMP or ExtendedNode.ExtendedNodeType.UNCONDITIONAL_JUMP).
Node	getNode() Returns the node contained in this extended node (only applicable if the type is NODE or EXCEPTION_NODE).
boolean	getTerminatesExecution()
ExtendedNode.ExtendedNodeType	getType()
void	setBlock(BlockImpl b)
void	setTerminatesExecution(boolean terminatesExecution)
String	toString()
abstract String	toStringDebug() Returns a verbose string representation of this, useful for debugging.

Methods inherited from class java.lang.Object

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

Field Detail

block

protected BlockImpl block

The basic block this extended node belongs to (as determined in phase two).

type

protected final ExtendedNode.ExtendedNodeType type

Type of this node.

terminatesExecution

protected boolean terminatesExecution

Does this node terminate the execution? (e.g., "System.exit()")

Constructor Detail

ExtendedNode

protected ExtendedNode(ExtendedNode.ExtendedNodeType type)

Create a new ExtendedNode.

Parameters:

type - the type of this node

Method Detail

getType

public ExtendedNode.ExtendedNodeType getType()

getTerminatesExecution

public boolean getTerminatesExecution()

setTerminatesExecution

public void setTerminatesExecution(boolean terminatesExecution)

getNode

public Node getNode()

Returns the node contained in this extended node (only applicable if the type is NODE or EXCEPTION_NODE).

Returns:

the node contained in this extended node (only applicable if the type is NODE or EXCEPTION_NODE)

getLabel

public Label getLabel()

Returns the label associated with this extended node (only applicable if type is ExtendedNode.ExtendedNodeType.CONDITIONAL_JUMP or ExtendedNode.ExtendedNodeType.UNCONDITIONAL_JUMP).

Returns:

the label associated with this extended node (only applicable if type is ExtendedNode.ExtendedNodeType.CONDITIONAL_JUMP or ExtendedNode.ExtendedNodeType.UNCONDITIONAL_JUMP)

getBlock

public BlockImpl getBlock()

setBlock

public void setBlock(BlockImpl b)

toString

public String toString()

Overrides:

toString in class Object

toStringDebug

public abstract String toStringDebug()

Returns a verbose string representation of this, useful for debugging.

Returns:

a string representation of this