com.techtrader.modules.tools.bytecode
Class TableSwitchInstruction

java.lang.Object
  |
  +--com.techtrader.modules.tools.bytecode.Instruction
        |
        +--com.techtrader.modules.tools.bytecode.JumpInstruction
              |
              +--com.techtrader.modules.tools.bytecode.TableSwitchInstruction

public class TableSwitchInstruction

extends JumpInstruction

A TABLESWITCH instruction.

Author:

Abe White

Fields inherited from class com.techtrader.modules.tools.bytecode.JumpInstruction

_offset, _target

Fields inherited from class com.techtrader.modules.tools.bytecode.Instruction

_byteIndex, _opcode, _opcodeTypes, _owner

Constructor Summary

protected

TableSwitchInstruction(Code owner)

Method Summary

void	acceptVisit(BCVisitor visit) Accept a visit from a BCVisitor, calling the appropriate methods to notify the visitor that it has entered this entity, and to provide it with the proper callbacks for each sub-entity owned by this object.
void	addTarget(Instruction target)
int	getDefaultOffset() Synonymous with getOffset().
Instruction	getDefaultTarget() Synonymous with getTarget().
int	getHigh()
int	getLength() Return the length in bytes of this opcode, including all arguments.
int	getLow()
int[]	getOffsets()
int	getStackChange() Return the number of stack positions this instruction pushes or pops during its execution.
Instruction[]	getTargets()
void	readData(DataInput in) Read the arguments for this opcode from the given stream.
void	setDefaultOffset(int offset) Synonymous with setOffset().
void	setDefaultTarget(Instruction jpt) Synonymous with setTarget().
void	setHigh(int high)
void	setLow(int low)
void	setMarkers(List inss) Use the byte indexes read from the .class file to calculate and set references to the target instruction(s) for this ptr.
void	setOffsets(int[] offsets) Set the offsets for this switch.
void	setTargets(Instruction[] targets) Set the jumppts for this switch.
void	writeData(DataOutput out) Write the arguments for this opcode to the given stream.

Methods inherited from class com.techtrader.modules.tools.bytecode.JumpInstruction

copy, equals, getOffset, getTarget, setOffset, setTarget

Methods inherited from class com.techtrader.modules.tools.bytecode.Instruction

getByteIndex, getName, getOpCode, getOwner, invalidate, setByteIndex, setOpCode

Methods inherited from class java.lang.Object

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

Constructor Detail

TableSwitchInstruction

protected TableSwitchInstruction(Code owner)

Method Detail

getDefaultTarget

public Instruction getDefaultTarget()

Synonymous with getTarget().

setDefaultTarget

public void setDefaultTarget(Instruction jpt)

Synonymous with setTarget().

getDefaultOffset

public int getDefaultOffset()

Synonymous with getOffset().

setDefaultOffset

public void setDefaultOffset(int offset)

Synonymous with setOffset().

getLow

public int getLow()

setLow

public void setLow(int low)

getHigh

public int getHigh()

setHigh

public void setHigh(int high)

setTargets

public void setTargets(Instruction[] targets)

Set the jumppts for this switch.

setOffsets

public void setOffsets(int[] offsets)

Set the offsets for this switch.

getTargets

public Instruction[] getTargets()

getOffsets

public int[] getOffsets()

addTarget

public void addTarget(Instruction target)

getLength

public int getLength()

Description copied from class: Instruction

Return the length in bytes of this opcode, including all arguments. This method should be overridden by opcodes that take arguments.

Overrides:

getLength in class JumpInstruction

getStackChange

public int getStackChange()

Description copied from class: Instruction

Return the number of stack positions this instruction pushes or pops during its execution.

Overrides:

getStackChange in class JumpInstruction

Tags copied from class: Instruction

Returns:

0 if the stack is not affected by this instruction, a positive number if it pushes onto the stack, and a negative number if it pops from the stack

readData

public void readData(DataInput in)
              throws IOException

Description copied from class: Instruction

Read the arguments for this opcode from the given stream. This method should be overridden by opcodes that take arguments.

Overrides:

readData in class JumpInstruction

writeData

public void writeData(DataOutput out)
               throws IOException

Description copied from class: Instruction

Write the arguments for this opcode to the given stream. This method should be overridden by opcodes that take arguments.

Overrides:

writeData in class JumpInstruction

setMarkers

public void setMarkers(List inss)

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.

Overrides:

setMarkers in class JumpInstruction

Tags copied from interface: InstructionPtr

Parameters:

codes - the list of opcodes in the method

acceptVisit

public void acceptVisit(BCVisitor visit)

Description copied from interface: VisitAcceptor

Accept a visit from a BCVisitor, calling the appropriate methods to notify the visitor that it has entered this entity, and to provide it with the proper callbacks for each sub-entity owned by this object.

Overrides:

acceptVisit in class JumpInstruction