Package org.apache.bcel.generic

Class IINC

java.lang.Object

org.apache.bcel.generic.Instruction

org.apache.bcel.generic.LocalVariableInstruction

org.apache.bcel.generic.IINC

All Implemented Interfaces:

java.lang.Cloneable, IndexedInstruction, TypedInstruction

public class IINC
extends LocalVariableInstruction

IINC - Increment local variable by constant

Field Summary

Fields inherited from class org.apache.bcel.generic.LocalVariableInstruction

n

Fields inherited from class org.apache.bcel.generic.Instruction

length, opcode

Constructor Summary

Constructors

Constructor	Description
IINC(int n, int c)

Method Summary

Modifier and Type	Method	Description
void	accept(Visitor v)	Calls corresponding visitor method(s).
void	dump(java.io.DataOutputStream out)	Dumps instruction as byte code to stream out.
int	getIncrement()
Type	getType(ConstantPoolGen cp)	Returns the type associated with the instruction - in case of ALOAD or ASTORE Type.OBJECT is returned.
protected void	initFromFile(ByteSequence bytes, boolean wide)	Reads needed data (e.g.
void	setIncrement(int c)	Sets increment factor.
void	setIndex(int n)	Sets index of local variable.
java.lang.String	toString(boolean verbose)	Returns mnemonic for instruction.

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

getCanonicalTag, getIndex

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

consumeStack, copy, equals, getComparator, getLength, getName, getOpcode, hashCode, isValidByte, isValidShort, produceStack, readInstruction, setComparator, toString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

IINC

public IINC(int n,
            int c)

Parameters:

n - index of local variable

c - increment factor

Method Detail

accept

public void accept(Visitor v)

Calls 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

dump

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

Dumps instruction as byte code to stream out.

Overrides:

dump in class LocalVariableInstruction

Parameters:

out - Output stream

Throws:

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

getIncrement

public final int getIncrement()

Returns:

increment factor

getType

public Type getType(ConstantPoolGen cp)

Description copied from class: LocalVariableInstruction

Returns the type associated with the instruction - in case of ALOAD or ASTORE Type.OBJECT is returned. This is just a bit incorrect, because ALOAD and ASTORE may work on every ReferenceType (including Type.NULL) and ASTORE may even work on a ReturnaddressType .

Specified by:

getType in interface TypedInstruction

Overrides:

getType in class LocalVariableInstruction

Returns:

int type

initFromFile

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

Reads needed data (e.g. index) from file.

Overrides:

initFromFile in class LocalVariableInstruction

Parameters:

bytes - byte sequence to read from

wide - "wide" instruction flag

Throws:

java.io.IOException - may be thrown if the implementation needs to read data from the file

setIncrement

public final void setIncrement(int c)

Sets increment factor.

setIndex

public final void setIndex(int n)

Sets index of local variable.

Specified by:

setIndex in interface IndexedInstruction

Overrides:

setIndex in class LocalVariableInstruction

See Also:

LocalVariableInstruction.setIndexOnly(int)

toString

public java.lang.String toString(boolean verbose)

Returns mnemonic for instruction.

Overrides:

toString in class LocalVariableInstruction

Parameters:

verbose - long/short format switch

Returns:

mnemonic for instruction.