nl.tudelft.simulation.dsol.interpreter
Class Operation

java.lang.Object
  nl.tudelft.simulation.dsol.interpreter.Operation

Direct Known Subclasses:

ATHROW, InvokeOperation, JumpOperation, ReturnOperation, VoidOperation, WIDE

public abstract class Operation
extends Object

Represents a Java virtual machine instruction. An operation is id-ed with a short opcode and has a predefined bytelength.

(c) copyright 2002-2005 Delft University of Technology , the Netherlands.
See for project information www.simulation.tudelft.nl
License of use: Lesser General Public License (LGPL) , no warranty.

Since:

1.4

Version:

$Revision: 1.1 $ $Date: 2007/01/06 13:25:12 $

Author:

Peter Jacobs

Field Summary

static int	BREAKPOINT RESERVED OPCODE
static int	IMPDEP1 RESERVED OPCODE
static int	IMPDEP2 RESERVED OPCODE
static int	OPCODE_BYTE_LENGTH OPCODE_BYTE_LENGTH

Constructor Summary

Operation()

Method Summary

abstract int	getByteLength()
abstract int	getOpcode()
String	toString()
static String	toString(MethodDescriptor methodDescriptor, Operation[] operations) represents a set of operations as string.

Methods inherited from class java.lang.Object

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

Field Detail

OPCODE_BYTE_LENGTH

public static final int OPCODE_BYTE_LENGTH

OPCODE_BYTE_LENGTH

See Also:

Constant Field Values

BREAKPOINT

public static final int BREAKPOINT

RESERVED OPCODE

See Also:

Constant Field Values

IMPDEP1

public static final int IMPDEP1

RESERVED OPCODE

See Also:

Constant Field Values

IMPDEP2

public static final int IMPDEP2

RESERVED OPCODE

See Also:

Constant Field Values

Constructor Detail

Operation

public Operation()

Method Detail

getOpcode

public abstract int getOpcode()

Returns:

Returns the opcode of the operation

getByteLength

public abstract int getByteLength()

Returns:

Returs the byteLength

toString

public String toString()

Overrides:

toString in class Object

See Also:

Object.toString()

toString

public static String toString(MethodDescriptor methodDescriptor,
                              Operation[] operations)

represents a set of operations as string.

Parameters:

methodDescriptor - the methodDescriptor

operations - the operations to represent

Returns:

The resulting string.