Package org.apache.bcel.generic

Class INVOKEINTERFACE

java.lang.Object

org.apache.bcel.generic.Instruction

org.apache.bcel.generic.CPInstruction

org.apache.bcel.generic.FieldOrMethod

org.apache.bcel.generic.InvokeInstruction

org.apache.bcel.generic.INVOKEINTERFACE

All Implemented Interfaces:

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

public final class INVOKEINTERFACE
extends InvokeInstruction

INVOKEINTERFACE - Invoke interface method

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

See Also:

The invokeinterface instruction in The Java Virtual Machine Specification

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
INVOKEINTERFACE(int index, int nargs)	Constructs an INVOKEINTERFACE instruction.

Method Summary

Modifier and Type	Method	Description
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)	Dumps instruction as byte code to stream out.
int	getCount()	The count argument according to the Java Language Specification, Second Edition.
java.lang.Class<?>[]	getExceptions()	Gets the exceptions that may be thrown by this instruction.
protected void	initFromFile(ByteSequence bytes, boolean wide)	Reads needed data (that is, index) from file.
java.lang.String	toString(ConstantPool cp)	Gets the mnemonic for instruction with symbolic references resolved.

Methods inherited from class org.apache.bcel.generic.InvokeInstruction

getArgumentTypes, getClassName, getMethodName, getReturnType, getType, produceStack

Methods inherited from class org.apache.bcel.generic.FieldOrMethod

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, 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

Constructor Detail

INVOKEINTERFACE

public INVOKEINTERFACE(int index,
                       int nargs)

Constructs an INVOKEINTERFACE instruction.

Parameters:

index - index into constant pool.

nargs - number of arguments.

Method Detail

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, that is, the most specific visitXXX() call comes last.

Specified by:

accept in class Instruction

Parameters:

v - Visitor object.

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

Parameters:

cpg - The constant pool generator.

Returns:

Number of words consumed from stack by this instruction.

dump

public void dump(java.io.DataOutputStream out)
          throws java.io.IOException

Dumps instruction as byte code to stream out.

Overrides:

dump in class CPInstruction

Parameters:

out - Output stream.

Throws:

java.io.IOException - Thrown when an I/O exception of some sort has occurred.

getCount

public int getCount()

The count argument according to the Java Language Specification, Second Edition.

Returns:

The count argument.

getExceptions

public java.lang.Class<?>[] getExceptions()

Description copied from interface: ExceptionThrower

Gets the exceptions that may be thrown by this instruction.

Returns:

The exceptions that may be thrown by this instruction.

initFromFile

protected void initFromFile(ByteSequence bytes,
                            boolean wide)
                     throws java.io.IOException

Reads needed data (that is, index) from file.

Overrides:

initFromFile in class CPInstruction

Parameters:

bytes - input stream.

wide - wide prefix?.

Throws:

java.io.IOException - Thrown if the implementation needs to read data from the file

toString

public java.lang.String toString(ConstantPool cp)

Description copied from class: Instruction

Gets the mnemonic for instruction with symbolic references resolved.

Overrides:

toString in class InvokeInstruction

Parameters:

cp - The constant pool.

Returns:

mnemonic for instruction with symbolic references resolved.