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

Modifier and Type	Field	Description
private int	c
private boolean	wide

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

n

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

EMPTY_ARRAY, length, opcode

Constructor Summary

Constructors

Constructor	Description
IINC()	Empty constructor needed for Instruction.readInstruction.
IINC(int n, int c)	Constructs an IINC instruction.

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()	Gets the increment factor.
Type	getType(ConstantPoolGen cp)	Gets the int type.
protected void	initFromFile(ByteSequence bytes, boolean wide)	Reads needed data (for example index) from file.
void	setIncrement(int c)	Sets increment factor.
void	setIndex(int n)	Sets index of local variable.
private void	setWide()
java.lang.String	toString(boolean verbose)	Returns mnemonic for instruction.

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

getCanonicalTag, getIndex, setIndexOnly

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

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

Methods inherited from class java.lang.Object

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

Field Detail

wide

private boolean wide

c

private int c

Constructor Detail

IINC

IINC()

Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.

IINC

public IINC(int n,
            int c)

Constructs an IINC instruction.

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, that is, 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()

Gets the increment factor.

Returns:

increment factor.

getType

public Type getType(ConstantPoolGen cp)

Gets the int type.

Specified by:

getType in interface TypedInstruction

Overrides:

getType in class LocalVariableInstruction

Parameters:

cp - the constant pool generator.

Returns:

int type.

initFromFile

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

Reads needed data (for example 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.

Parameters:

c - the 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

Parameters:

n - the index.

See Also:

LocalVariableInstruction.setIndexOnly(int)

setWide

private void setWide()

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.