org.apache.bcel.generic
Class INVOKEINTERFACE

java.lang.Object
  extended by org.apache.bcel.generic.Instruction
      extended by org.apache.bcel.generic.CPInstruction
          extended by org.apache.bcel.generic.FieldOrMethod
              extended by org.apache.bcel.generic.InvokeInstruction
                  extended by org.apache.bcel.generic.INVOKEINTERFACE
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, ExceptionThrower, IndexedInstruction, LoadClass, StackConsumer, StackProducer, TypedInstruction

public final class INVOKEINTERFACE
extends InvokeInstruction

INVOKEINTERFACE - Invoke interface method

Stack: ..., objectref, [arg1, [arg2 ...]] -> ...

Version:
$Id: INVOKEINTERFACE.java 386056 2006-03-15 11:31:56Z tcurdt $
Author:
M. Dahm
See Also:
Serialized Form

Field Summary
private  int nargs
           
 
Fields inherited from class org.apache.bcel.generic.CPInstruction
index
 
Fields inherited from class org.apache.bcel.generic.Instruction
length, opcode
 
Constructor Summary
INVOKEINTERFACE()
          Empty constructor needed for the Class.newInstance() statement in Instruction.readInstruction().
INVOKEINTERFACE(int index, int nargs)
           
 
Method Summary
 void accept(Visitor v)
          Call corresponding visitor method(s).
 int consumeStack(ConstantPoolGen cpg)
          Also works for instructions whose stack effect depends on the constant pool entry they reference.
 void dump(java.io.DataOutputStream out)
          Dump instruction as byte code to stream out.
 int getCount()
          The count argument according to the Java Language Specification, Second Edition.
 java.lang.Class[] getExceptions()
           
protected  void initFromFile(ByteSequence bytes, boolean wide)
          Read needed data (i.e., index) from file.
 java.lang.String toString(ConstantPool cp)
           
 
Methods inherited from class org.apache.bcel.generic.InvokeInstruction
getArgumentTypes, getMethodName, getReturnType, getType, produceStack
 
Methods inherited from class org.apache.bcel.generic.FieldOrMethod
getClassName, getClassType, getLoadClassType, getName, getReferenceType, getSignature
 
Methods inherited from class org.apache.bcel.generic.CPInstruction
getIndex, setIndex, toString
 
Methods inherited from class org.apache.bcel.generic.Instruction
copy, dispose, equals, getComparator, getLength, getName, getOpcode, readInstruction, setComparator, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

nargs

private int nargs
Constructor Detail

INVOKEINTERFACE

INVOKEINTERFACE()
Empty constructor needed for the Class.newInstance() statement in Instruction.readInstruction(). Not to be used otherwise.


INVOKEINTERFACE

public INVOKEINTERFACE(int index,
                       int nargs)
Method Detail

dump

public void dump(java.io.DataOutputStream out)
          throws java.io.IOException
Dump instruction as byte code to stream out.

Overrides:
dump in class CPInstruction
Parameters:
out - Output stream
Throws:
java.io.IOException

getCount

public int getCount()
The count argument according to the Java Language Specification, Second Edition.


initFromFile

protected void initFromFile(ByteSequence bytes,
                            boolean wide)
                     throws java.io.IOException
Read needed data (i.e., index) from file.

Overrides:
initFromFile in class CPInstruction
Parameters:
bytes - input stream
wide - wide prefix?
Throws:
java.io.IOException

toString

public java.lang.String toString(ConstantPool cp)
Overrides:
toString in class InvokeInstruction
Returns:
mnemonic for instruction with symbolic references resolved

consumeStack

public int consumeStack(ConstantPoolGen cpg)
Description copied from class: InvokeInstruction
Also works for instructions whose stack effect depends on the constant pool entry they reference.

Specified by:
consumeStack in interface StackConsumer
Overrides:
consumeStack in class InvokeInstruction
Returns:
Number of words consumed from stack by this instruction

getExceptions

public java.lang.Class[] getExceptions()

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