edu.arizona.cs.mbel.instructions
Class CASTCLASS

java.lang.Object
  edu.arizona.cs.mbel.instructions.Instruction
      edu.arizona.cs.mbel.instructions.CASTCLASS

public class CASTCLASS

extends Instruction

Casts an object to a given class type.
Stack transition:
..., obj1 --> ..., obj2

Field Summary

static int	CASTCLASS
protected static int[]	OPCODE_LIST

Constructor Summary

CASTCLASS(AbstractTypeReference ref)
Makes a CASTCLASS object with the given type reference

CASTCLASS(int opcode, ClassParser parse)

Method Summary

protected void	emit(ByteBuffer buffer, ClassEmitter emitter) Writes the instruction to the given buffer in raw byte form
boolean	equals(java.lang.Object o)
int	getLength() Returns the length in bytes of this instruction, as would be found on disk.
java.lang.String	getName() Returns the string representation of this instruction (may vary instance-to-instance)
AbstractTypeReference	getType() Returns the type reference for this instruction

Methods inherited from class edu.arizona.cs.mbel.instructions.Instruction

getOpcode, readInstruction, toString

Methods inherited from class java.lang.Object

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

Field Detail

CASTCLASS

public static final int CASTCLASS

See Also:

Constant Field Values

OPCODE_LIST

protected static final int[] OPCODE_LIST

Constructor Detail

CASTCLASS

public CASTCLASS(AbstractTypeReference ref)
          throws InstructionInitException

Makes a CASTCLASS object with the given type reference

Parameters:

ref - the type reference for this instruction

CASTCLASS

public CASTCLASS(int opcode,
                 ClassParser parse)
          throws java.io.IOException,
                 InstructionInitException

Method Detail

getName

public java.lang.String getName()

Description copied from class: Instruction

Returns the string representation of this instruction (may vary instance-to-instance)

Specified by:

getName in class Instruction

Returns:

a string representing this instruction (i.e. "cpblk")

getType

public AbstractTypeReference getType()

Returns the type reference for this instruction

getLength

public int getLength()

Description copied from class: Instruction

Returns the length in bytes of this instruction, as would be found on disk. This value includes any prefixes prepended to this instruction.

Overrides:

getLength in class Instruction

emit

protected void emit(ByteBuffer buffer,
                    ClassEmitter emitter)

Description copied from class: Instruction

Writes the instruction to the given buffer in raw byte form

Overrides:

emit in class Instruction

Parameters:

buffer - the buffer to write to

emitter - a ClassEmitter for reconciling references to tokens

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class Instruction