Class DCONST

java.lang.Object

org.apache.bcel.generic.Instruction

org.apache.bcel.generic.DCONST

All Implemented Interfaces:

Cloneable, ConstantPushInstruction, PushInstruction, StackProducer, TypedInstruction

public class DCONST
extends Instruction
implements ConstantPushInstruction

DCONST - Push 0.0 or 1.0, other values cause an exception

Stack: ... -> ...,

Field Summary

Fields inherited from class Instruction

length, opcode

Constructor Summary

Constructors

Constructor	Description
DCONST(double f)	Constructs a DCONST instruction.

Method Summary

Modifier and Type	Method	Description
void	accept(Visitor v)	Call corresponding visitor method(s).
Type	getType(ConstantPoolGen cp)	Gets the type associated with this instruction.
Number	getValue()	Gets the value to push onto the stack.

Methods inherited from class Instruction

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

Methods inherited from class Object

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

Methods inherited from interface StackProducer

produceStack

Constructor Details

DCONST

public DCONST(double f)

Constructs a DCONST instruction.

Parameters:

f - the constant value (must be 0.0 or 1.0).

Throws:

ClassGenException - if f is not 0.0 or 1.0.

Method Details

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.

getType

public Type getType(ConstantPoolGen cp)

Description copied from interface: TypedInstruction

Gets the type associated with this instruction.

Specified by:

getType in interface TypedInstruction

Parameters:

cp - the constant pool generator.

Returns:

Type.DOUBLE.

getValue

public Number getValue()

Description copied from interface: ConstantPushInstruction

Gets the value to push onto the stack.

Specified by:

getValue in interface ConstantPushInstruction

Returns:

the value to push onto the stack.