Package org.checkerframework.dataflow.cfg.block

Class SingleSuccessorBlockImpl

java.lang.Object

org.checkerframework.dataflow.cfg.block.BlockImpl

org.checkerframework.dataflow.cfg.block.SingleSuccessorBlockImpl

All Implemented Interfaces:

Block, SingleSuccessorBlock, org.plumelib.util.UniqueId

Direct Known Subclasses:

ExceptionBlockImpl, RegularBlockImpl, SpecialBlockImpl

public abstract class SingleSuccessorBlockImpl
extends BlockImpl
implements SingleSuccessorBlock

A basic block that has at most one successor. SpecialBlockImpl extends this, but exit blocks have no successor.

Nested Class Summary

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

Block.BlockType

Field Summary

Fields

Modifier and Type	Field	Description
protected Store.FlowRule	flowRule	The initial value for the rule below says that EACH store at the end of a single successor block flows to the corresponding store of the successor.
protected @Nullable BlockImpl	successor	Internal representation of the successor.

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

predecessors, type

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SingleSuccessorBlockImpl(Block.BlockType type)	Creates a new SingleSuccessorBlock.

Method Summary

Modifier and Type	Method	Description
Store.FlowRule	getFlowRule()	Returns the flow rule for information flowing from this block to its successor.
@Nullable Block	getSuccessor()	Returns the non-exceptional successor block, or null if there is no non-exceptional successor.
Set<Block>	getSuccessors()	Returns the successors of this basic block.
void	setFlowRule(Store.FlowRule rule)	Set the flow rule for information flowing from this block to its successor.
void	setSuccessor(BlockImpl successor)	Set a basic block as the successor of this block.

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, toString, wait, wait, wait

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

getLastNode, getNodes, getPredecessors, getType

Methods inherited from interface org.plumelib.util.UniqueId

getClassAndUid, getUid

Field Details

successor

protected @Nullable BlockImpl successor

Internal representation of the successor.

Is set by setSuccessor(org.checkerframework.dataflow.cfg.block.BlockImpl).

flowRule

protected Store.FlowRule flowRule

The initial value for the rule below says that EACH store at the end of a single successor block flows to the corresponding store of the successor.

Constructor Details

SingleSuccessorBlockImpl

protected SingleSuccessorBlockImpl(Block.BlockType type)

Creates a new SingleSuccessorBlock.

Parameters:

type - the type of this basic block

Method Details

getSuccessor

public @Nullable Block getSuccessor()

Description copied from interface: SingleSuccessorBlock

Returns the non-exceptional successor block, or null if there is no non-exceptional successor.

Specified by:

getSuccessor in interface SingleSuccessorBlock

Returns:

the non-exceptional successor block, or null if there is no non-exceptional successor

getSuccessors

public Set<Block> getSuccessors()

Description copied from interface: Block

Returns the successors of this basic block.

Specified by:

getSuccessors in interface Block

Returns:

the successors of this basic block

setSuccessor

public void setSuccessor(BlockImpl successor)

Set a basic block as the successor of this block.

Parameters:

successor - the block that will be the successor of this

getFlowRule

public Store.FlowRule getFlowRule()

Description copied from interface: SingleSuccessorBlock

Returns the flow rule for information flowing from this block to its successor.

Specified by:

getFlowRule in interface SingleSuccessorBlock

Returns:

the flow rule for information flowing from this block to its successor

setFlowRule

public void setFlowRule(Store.FlowRule rule)

Description copied from interface: SingleSuccessorBlock

Set the flow rule for information flowing from this block to its successor.

Specified by:

setFlowRule in interface SingleSuccessorBlock

Parameters:

rule - the new flow rule for information flowing from this block to its successor