org.checkerframework.dataflow.cfg.block

Class RegularBlockImpl

java.lang.Object

org.checkerframework.dataflow.cfg.block.BlockImpl

org.checkerframework.dataflow.cfg.block.SingleSuccessorBlockImpl

org.checkerframework.dataflow.cfg.block.RegularBlockImpl

All Implemented Interfaces:

Block, RegularBlock, SingleSuccessorBlock, org.plumelib.util.UniqueId

public class RegularBlockImpl
extends SingleSuccessorBlockImpl
implements RegularBlock

Implementation of a regular basic block.

Nested Class Summary

Nested classes/interfaces inherited from interface org.checkerframework.dataflow.cfg.block.Block

Block.BlockType

Field Summary

Fields

Modifier and Type	Field and Description
protected List<Node>	contents Internal representation of the contents.

Fields inherited from class org.checkerframework.dataflow.cfg.block.SingleSuccessorBlockImpl

flowRule, successor

Fields inherited from class org.checkerframework.dataflow.cfg.block.BlockImpl

predecessors, type

Constructor Summary

Constructors

Constructor and Description
RegularBlockImpl() Initialize an empty basic block to be filled with contents and linked to other basic blocks later.

Method Summary

Modifier and Type	Method and Description
void	addNode(Node t) Add a node to the contents of this basic block.
void	addNodes(List<? extends Node> ts) Add multiple nodes to the contents of this basic block.
@Nullable Node	getLastNode() Returns the last node of this block, or null if none.
List<Node>	getNodes() Returns the nodes contained within this basic block.
@Nullable BlockImpl	getRegularSuccessor() Returns the regular successor block.
boolean	isEmpty() Is this block empty (i.e., does it not contain any contents).
String	toString()

Methods inherited from class org.checkerframework.dataflow.cfg.block.SingleSuccessorBlockImpl

getFlowRule, getSuccessor, getSuccessors, setFlowRule, setSuccessor

Methods inherited from class org.checkerframework.dataflow.cfg.block.BlockImpl

addPredecessor, getPredecessors, getType, getUid, removePredecessor

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.checkerframework.dataflow.cfg.block.SingleSuccessorBlock

getFlowRule, getSuccessor, setFlowRule

Methods inherited from interface org.checkerframework.dataflow.cfg.block.Block

getPredecessors, getSuccessors, getType

Methods inherited from interface org.plumelib.util.UniqueId

getClassAndUid, getUid

Field Detail

contents

protected final List<Node> contents

Internal representation of the contents.

Constructor Detail

RegularBlockImpl

public RegularBlockImpl()

Initialize an empty basic block to be filled with contents and linked to other basic blocks later.

Method Detail

addNode

public void addNode(Node t)

Add a node to the contents of this basic block.

addNodes

public void addNodes(List<? extends Node> ts)

Add multiple nodes to the contents of this basic block.

getNodes

public List<Node> getNodes()

Returns the nodes contained within this basic block. The list may be empty.

The following invariant holds.

 forall n in getNodes() :: n.getBlock() == this
 

This implementation returns an non-empty list.

Specified by:

getNodes in interface Block

Returns:

the nodes contained within this basic block

getLastNode

public @Nullable Node getLastNode()

Description copied from interface: Block

Returns the last node of this block, or null if none.

Specified by:

getLastNode in interface Block

Returns:

the last node of this block or null

getRegularSuccessor

public @Nullable BlockImpl getRegularSuccessor()

Description copied from interface: RegularBlock

Returns the regular successor block.

Specified by:

getRegularSuccessor in interface RegularBlock

Returns:

the regular successor block

toString

public String toString()

Overrides:

toString in class Object

isEmpty

public boolean isEmpty()

Description copied from interface: RegularBlock

Is this block empty (i.e., does it not contain any contents).

Specified by:

isEmpty in interface RegularBlock