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com.techtrader.modules.tools.bytecode
Class ExceptionHandler  

java.lang.Object
  com.techtrader.modules.tools.bytecode.ExceptionHandler

All Implemented Interfaces:

InstructionPtr

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public class ExceptionHandler

extends java.lang.Object

implements InstructionPtr

Represents a try {} catch() {} statement in bytecode.

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Field Summary
private  int	_catchTypeIndex
private  Instruction	_end
private  int	_endPc
private  Instruction	_handler
private  int	_handlerPc
private  Code	_owner
private  Instruction	_start
private  int	_startPc

 

Constructor Summary
protected	ExceptionHandler(Code owner)           Protected constructor.

 

Method Summary
void	acceptVisit(com.techtrader.modules.tools.bytecode.visitor.BCVisitor visit)
protected  void	copy(ExceptionHandler orig)
java.lang.Class	getCatchType()           Get the class of the catch() type; returns null for catch-all clauses used to implement finally blocks.
int	getCatchTypeIndex()           Get the index into the constant pool of the ClassEntry describing the Exception type this handler catches.
java.lang.String	getCatchTypeName()           Get the class of the catch() type; returns null for catch-all clauses used to implement finally blocks.
int	getEndPc()           Get the program counter end position for this exception handler.
int	getHandlerPc()           Get the start of the actual exception handler code.
Instruction	getHandlerStart()           Get the instruction marking the beginning of the catch {} block.
int	getStartPc()           Get the program counter start position for this exception handler.
Instruction	getTryEnd()           Get the instruction at the end of the try {} block.
Instruction	getTryStart()           Get the instruction marking the beginning of the try {} block.
protected  void	invalidate()           Used to invalidate the handler when it is removed from the code block.
protected  void	readData(java.io.DataInput in)
void	setCatchType(java.lang.Class type)           Set the class of the catch() type, or null for catch-all clauses used for finally blocks.
void	setCatchTypeIndex(int catchTypeIndex)           Set the index into the constant pool of the ClassEntry describing the Exception type this handler catches.
void	setCatchTypeName(java.lang.String name)           Set the class of the catch() type, or null for catch-all clauses used with finally blocks.
void	setEndPc(int endPc)           Set the program counter end position for this exception handler.
void	setHandlerPc(int handlerPc)           Get the start of the actual exception handler code.
void	setHandlerStart(Instruction instruction)           Set the Instruction marking the beginning of the catch block.
void	setMarkers(java.util.List opcodes)           Use the byte indexes read from the .class file to calculate and set references to the target instruction(s) for this ptr.
void	setStartPc(int startPc)           Set the program counter start position for this exception handler.
void	setTryEnd(Instruction instruction)           Set the Instruction at the end of the try block.
void	setTryStart(Instruction instruction)           Set the Instruction marking the beginning of the try block.
protected  void	writeData(java.io.DataOutput out)

 

Methods inherited from class java.lang.Object

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

 

Field Detail

_startPc

private int _startPc

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_endPc

private int _endPc

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_handlerPc

private int _handlerPc

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_catchTypeIndex

private int _catchTypeIndex

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_owner

private Code _owner

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_start

private Instruction _start

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_end

private Instruction _end

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_handler

private Instruction _handler

Constructor Detail

ExceptionHandler

protected ExceptionHandler(Code owner)

Protected constructor.

Method Detail

invalidate

protected void invalidate()

Used to invalidate the handler when it is removed from the code block.

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getStartPc

public int getStartPc()

Get the program counter start position for this exception handler. This represents an index into the code byte array.

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setStartPc

public void setStartPc(int startPc)

Set the program counter start position for this exception handler. This represents an index into the code byte array.

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setTryStart

public void setTryStart(Instruction instruction)

Set the Instruction marking the beginning of the try block. The Instruction must already be a part of the method. WARNING: if this instruction is deleted, the results are undefined.

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getTryStart

public Instruction getTryStart()

Get the instruction marking the beginning of the try {} block. WARNING: if this instruction is deleted, the results are undefined.

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getEndPc

public int getEndPc()

Get the program counter end position for this exception handler. This represents an index into the code byte array.

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setEndPc

public void setEndPc(int endPc)

Set the program counter end position for this exception handler. This represents an index into the code byte array.

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setTryEnd

public void setTryEnd(Instruction instruction)

Set the Instruction at the end of the try block. The Instruction must already be a part of the method. WARNING: if this instruction is deleted, the results are undefined.

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getTryEnd

public Instruction getTryEnd()

Get the instruction at the end of the try {} block. WARNING: if this instruction is deleted, the results are undefined.

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getHandlerPc

public int getHandlerPc()

Get the start of the actual exception handler code. This represents an index into the code byte array.

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setHandlerPc

public void setHandlerPc(int handlerPc)

Get the start of the actual exception handler code. This represents an index into the code byte array.

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setHandlerStart

public void setHandlerStart(Instruction instruction)

Set the Instruction marking the beginning of the catch block. The Instruction must already be a part of the method. WARNING: if this instruction is deleted, the results are undefined.

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getHandlerStart

public Instruction getHandlerStart()

Get the instruction marking the beginning of the catch {} block. WARNING: if this instruction is deleted, the results are undefined.

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getCatchTypeIndex

public int getCatchTypeIndex()

Get the index into the constant pool of the ClassEntry describing the Exception type this handler catches.

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setCatchTypeIndex

public void setCatchTypeIndex(int catchTypeIndex)

Set the index into the constant pool of the ClassEntry describing the Exception type this handler catches.

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getCatchTypeName

public java.lang.String getCatchTypeName()

Get the class of the catch() type; returns null for catch-all clauses used to implement finally blocks.

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setCatchTypeName

public void setCatchTypeName(java.lang.String name)

Set the class of the catch() type, or null for catch-all clauses used with finally blocks.

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getCatchType

public java.lang.Class getCatchType()
                             throws java.lang.ClassNotFoundException

Get the class of the catch() type; returns null for catch-all clauses used to implement finally blocks.

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setCatchType

public void setCatchType(java.lang.Class type)

Set the class of the catch() type, or null for catch-all clauses used for finally blocks.

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setMarkers

public void setMarkers(java.util.List opcodes)

Description copied from interface: InstructionPtr

Use the byte indexes read from the .class file to calculate and set references to the target instruction(s) for this ptr. This method will be called after the byte code has been read in for the first time.

Specified by:

setMarkers in interface InstructionPtr

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copy

protected void copy(ExceptionHandler orig)

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readData

protected void readData(java.io.DataInput in)
                 throws java.io.IOException

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writeData

protected void writeData(java.io.DataOutput out)
                  throws java.io.IOException

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acceptVisit

public void acceptVisit(com.techtrader.modules.tools.bytecode.visitor.BCVisitor visit)

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Home >> All >> com >> techtrader >> modules >> tools >> [ bytecode overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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