GETFIELD

java.lang.Object

org.apache.bcel.generic.Instruction

org.apache.bcel.generic.CPInstruction

org.apache.bcel.generic.FieldOrMethod

org.apache.bcel.generic.FieldInstruction

org.apache.bcel.generic.GETFIELD

All Implemented Interfaces:: Cloneable, ExceptionThrower, IndexedInstruction, LoadClass, 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

Field Summary

Fields inherited from class org.apache.bcel.generic.CPInstruction
index

Fields inherited from class org.apache.bcel.generic.Instruction
length, opcode
Constructor Summary

Constructors

Constructor

Description

GETFIELD(int index)
Method Summary

Modifier and Type

Method

Description

void

accept(Visitor v)

Call corresponding visitor method(s).

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 org.apache.bcel.generic.FieldInstruction
getFieldName, getFieldSize, getFieldType, getType, toString

Methods inherited from class org.apache.bcel.generic.FieldOrMethod
getClassName, getClassType, getLoadClassType, getName, getReferenceType, getSignature

Methods inherited from class org.apache.bcel.generic.CPInstruction
dump, getIndex, initFromFile, setIndex, toString

Methods inherited from class org.apache.bcel.generic.Instruction
consumeStack, copy, equals, getComparator, getLength, getName, getOpcode, hashCode, isValidByte, isValidShort, readInstruction, setComparator, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.bcel.generic.StackConsumer
consumeStack

Constructor Details
- GETFIELD
  
  public GETFIELD(int index)
Method Details
- 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
  
  Returns:
  
  Number of words produced onto stack by this instruction, or Constants.UNPREDICTABLE, if this can not be computed statically
- getExceptions
  
  public 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.
  
  Specified by:
  
  accept in class Instruction
  
  Parameters:
  
  v - Visitor object