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Compil3r.BytecodeAnalysis
Class Bytecodes.BranchInstruction  

java.lang.Object
  Compil3r.BytecodeAnalysis.Bytecodes.Instruction
      Compil3r.BytecodeAnalysis.Bytecodes.BranchInstruction

All Implemented Interfaces:

Bytecodes.InstructionTargeter, java.lang.Cloneable, java.io.Serializable

Direct Known Subclasses:

Bytecodes.GotoInstruction, Bytecodes.IfInstruction, Bytecodes.JsrInstruction, Bytecodes.Select

Enclosing class:

Bytecodes

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public abstract static class Bytecodes.BranchInstruction

extends Bytecodes.Instruction

implements Bytecodes.InstructionTargeter

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Field Summary
protected  int	index
protected  int	position
protected  Bytecodes.InstructionHandle	target

 

Fields inherited from class Compil3r.BytecodeAnalysis.Bytecodes.Instruction

length, opcode

 

Constructor Summary
(package private)	Bytecodes.BranchInstruction()           Empty constructor needed for the Class.newInstance() statement in Instruction.readInstruction().
protected	Bytecodes.BranchInstruction(short opcode, Bytecodes.InstructionHandle target)           Common super constructor

 

Method Summary
boolean	containsTarget(Bytecodes.InstructionHandle ih)
(package private)  void	dispose()           Inform target that it's not targeted anymore.
void	dump(java.io.DataOutputStream out)           Dump instruction as byte code to stream out.
int	getIndex()
Bytecodes.InstructionHandle	getTarget()
protected  int	getTargetOffset()
protected  int	getTargetOffset(Bytecodes.InstructionHandle target)
protected  void	initFromFile(Clazz.jq_ConstantPool cp, Util.IO.ByteSequence bytes, boolean wide)           Read needed data (e.g.
(package private) static void	notifyTarget(Bytecodes.InstructionHandle old_ih, Bytecodes.InstructionHandle new_ih, Bytecodes.InstructionTargeter t)           Used by BranchInstruction, LocalVariable, CodeException
void	setTarget(Bytecodes.InstructionHandle target)           Set branch target
java.lang.String	toString(boolean verbose)           Long output format: <position in byte code> <name of opcode> "["<opcode number>"]" "("<length of instruction>")" "<"<target instruction>">" "@"<branch target offset>
protected  int	updatePosition(int offset, int max_offset)           Called by InstructionList.setPositions when setting the position for every instruction.
void	updateTarget(Bytecodes.InstructionHandle old_ih, Bytecodes.InstructionHandle new_ih)

 

Methods inherited from class Compil3r.BytecodeAnalysis.Bytecodes.Instruction

accept, consumeStack, copy, getLength, getOpcode, produceStack, readInstruction, toString

 

Methods inherited from class java.lang.Object

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

 

Field Detail

index

protected int index

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target

protected Bytecodes.InstructionHandle target

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position

protected int position

Constructor Detail

Bytecodes.BranchInstruction

Bytecodes.BranchInstruction()

Empty constructor needed for the Class.newInstance() statement in Instruction.readInstruction(). Not to be used otherwise.

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Bytecodes.BranchInstruction

protected Bytecodes.BranchInstruction(short opcode,
                                      Bytecodes.InstructionHandle target)

Common super constructor

Method Detail

dump

public void dump(java.io.DataOutputStream out)
          throws java.io.IOException

Dump instruction as byte code to stream out.

Overrides:

dump in class Bytecodes.Instruction

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getTargetOffset

protected int getTargetOffset(Bytecodes.InstructionHandle target)

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getTargetOffset

protected int getTargetOffset()

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updatePosition

protected int updatePosition(int offset,
                             int max_offset)

Called by InstructionList.setPositions when setting the position for every instruction. In the presence of variable length instructions `setPositions' performs multiple passes over the instruction list to calculate the correct (byte) positions and offsets by calling this function.

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toString

public java.lang.String toString(boolean verbose)

Long output format: <position in byte code> <name of opcode> "["<opcode number>"]" "("<length of instruction>")" "<"<target instruction>">" "@"<branch target offset>

Overrides:

toString in class Bytecodes.Instruction

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initFromFile

protected void initFromFile(Clazz.jq_ConstantPool cp,
                            Util.IO.ByteSequence bytes,
                            boolean wide)
                     throws java.io.IOException

Read needed data (e.g. index) from file. Conversion to a InstructionHandle is done in InstructionList(byte[]).

Overrides:

initFromFile in class Bytecodes.Instruction

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getIndex

public final int getIndex()

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getTarget

public Bytecodes.InstructionHandle getTarget()

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setTarget

public void setTarget(Bytecodes.InstructionHandle target)

Set branch target

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notifyTarget

static final void notifyTarget(Bytecodes.InstructionHandle old_ih,
                               Bytecodes.InstructionHandle new_ih,
                               Bytecodes.InstructionTargeter t)

Used by BranchInstruction, LocalVariable, CodeException

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updateTarget

public void updateTarget(Bytecodes.InstructionHandle old_ih,
                         Bytecodes.InstructionHandle new_ih)

Specified by:

updateTarget in interface Bytecodes.InstructionTargeter

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containsTarget

public boolean containsTarget(Bytecodes.InstructionHandle ih)

Specified by:

containsTarget in interface Bytecodes.InstructionTargeter

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dispose

void dispose()

Inform target that it's not targeted anymore.

Overrides:

dispose in class Bytecodes.Instruction

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> Compil3r >> [ BytecodeAnalysis overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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