Package javassist.bytecode.stackmap

Class BasicBlock

java.lang.Object

javassist.bytecode.stackmap.BasicBlock

Direct Known Subclasses:

ControlFlow.Block, TypedBlock

public class BasicBlock
extends Object

A basic block is a sequence of bytecode that does not contain jump/branch instructions except at the last bytecode. Since Java7 or later does not allow JSR, this class throws an exception when it finds JSR.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	BasicBlock.Catch
(package private) static class	BasicBlock.JsrBytecode
static class	BasicBlock.Maker
(package private) static class	BasicBlock.Mark	A Mark indicates the position of a branch instruction or a branch target.

Field Summary

Fields

Modifier and Type	Field	Description
protected BasicBlock[]	exit
protected int	incoming
protected int	length
protected int	position
protected boolean	stop
protected BasicBlock.Catch	toCatch

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BasicBlock(int pos)

Method Summary

Modifier and Type	Method	Description
static BasicBlock	find(BasicBlock[] blocks, int pos)
String	toString()
protected void	toString2(StringBuilder sbuf)

Methods inherited from class java.lang.Object

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

Field Details

position

protected int position

length

protected int length

incoming

protected int incoming

exit

protected BasicBlock[] exit

stop

protected boolean stop

toCatch

protected BasicBlock.Catch toCatch

Constructor Details

BasicBlock

protected BasicBlock(int pos)

Method Details

find

public static BasicBlock find(BasicBlock[] blocks,
 int pos)
                       throws BadBytecode

Throws:

BadBytecode

toString

public String toString()

Overrides:

toString in class Object

toString2

protected void toString2(StringBuilder sbuf)