de.fub.bytecode.generic
Class GETFIELD

java.lang.Object
  |
  +--de.fub.bytecode.generic.Instruction
        |
        +--de.fub.bytecode.generic.CPInstruction
              |
              +--de.fub.bytecode.generic.FieldOrMethod
                    |
                    +--de.fub.bytecode.generic.FieldInstruction
                          |
                          +--de.fub.bytecode.generic.GETFIELD

All Implemented Interfaces:

java.lang.Cloneable, ExceptionThrower, IndexedInstruction, LoadClass, java.io.Serializable, StackConsumer, StackProducer, TypedInstruction

public class GETFIELD

extends FieldInstruction

implements ExceptionThrower, StackConsumer, StackProducer

GETFIELD - Fetch field from object

Stack: ..., objectref -> ..., value

OR

Stack: ..., objectref -> ..., value.word1, value.word2

Version:

$Id: GETFIELD.java,v 1.7 2001/05/09 09:26:57 dahm Exp $

Author:

M. Dahm

See Also:

Serialized Form

Fields inherited from class de.fub.bytecode.generic.CPInstruction

index

Fields inherited from class de.fub.bytecode.generic.Instruction

length, opcode

Constructor Summary

GETFIELD(int index)

Method Summary

void	accept(Visitor v) Call corresponding visitor method(s).
java.lang.Class[]	getExceptions()
int	produceStack(ConstantPoolGen cpg) This method also gives right results for instructions whose effect on the stack depends on the constant pool entry they reference.

Methods inherited from class de.fub.bytecode.generic.FieldInstruction

getFieldName, getFieldSize, getFieldType, getType, toString

Methods inherited from class de.fub.bytecode.generic.FieldOrMethod

getClassName, getClassType, getLoadClassType, getName, getSignature

Methods inherited from class de.fub.bytecode.generic.CPInstruction

dump, getIndex, initFromFile, setIndex, toString

Methods inherited from class de.fub.bytecode.generic.Instruction

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.fub.bytecode.generic.StackConsumer

consumeStack

Constructor Detail

GETFIELD

public GETFIELD(int index)

Method Detail

produceStack

public int produceStack(ConstantPoolGen cpg)

Description copied from class: Instruction

This method also gives right results for instructions whose effect on the stack depends on the constant pool entry they reference.

Specified by:

produceStack in interface StackProducer

Overrides:

produceStack in class Instruction

Following copied from interface: de.fub.bytecode.generic.StackProducer

Returns:

how many words are produced on stack

getExceptions

public java.lang.Class[] getExceptions()

Specified by:

getExceptions in interface ExceptionThrower

accept

public void accept(Visitor v)

Call corresponding visitor method(s). The order is: Call visitor methods of implemented interfaces first, then call methods according to the class hierarchy in descending order, i.e., the most specific visitXXX() call comes last.

Overrides:

accept in class Instruction

Parameters:

v - Visitor object