net.bytebuddy.instrumentation.method.bytecode.stack.constant

Enum DoubleConstant

java.lang.Object

java.lang.Enum<DoubleConstant>

net.bytebuddy.instrumentation.method.bytecode.stack.constant.DoubleConstant

All Implemented Interfaces:

Serializable, Comparable<DoubleConstant>, StackManipulation

public enum DoubleConstant
extends Enum<DoubleConstant>
implements StackManipulation

This class is responsible for loading any double constant onto the operand stack.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	DoubleConstant.ConstantPool A stack manipulation for loading a double value from a class's constant pool onto the operand stack.

Nested classes/interfaces inherited from interface net.bytebuddy.instrumentation.method.bytecode.stack.StackManipulation

StackManipulation.Compound, StackManipulation.Illegal, StackManipulation.LegalTrivial, StackManipulation.Size

Enum Constant Summary

Enum Constants

Enum Constant and Description
ONE A double constant of value 1.0.
ZERO A double constant of value 0.0.

Method Summary

Modifier and Type	Method and Description
StackManipulation.Size	apply(org.objectweb.asm.MethodVisitor methodVisitor, Instrumentation.Context instrumentationContext) Applies the stack manipulation that is described by this instance.
static StackManipulation	forValue(double value) Creates a stack manipulation for loading a double value onto the operand stack.
boolean	isValid() Determines if this stack manipulation is valid.
static DoubleConstant	valueOf(String name) Returns the enum constant of this type with the specified name.
static DoubleConstant[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

ZERO

public static final DoubleConstant ZERO

A double constant of value 0.0.

ONE

public static final DoubleConstant ONE

A double constant of value 1.0.

Method Detail

values

public static DoubleConstant[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (DoubleConstant c : DoubleConstant.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DoubleConstant valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

forValue

public static StackManipulation forValue(double value)

Creates a stack manipulation for loading a double value onto the operand stack.

This is achieved either by invoking a specific opcode, if any, or by creating a constant pool entry.

Parameters:

value - The double value to load onto the stack.

Returns:

A stack manipulation for loading the given double value.

isValid

public boolean isValid()

Description copied from interface: StackManipulation

Determines if this stack manipulation is valid.

Specified by:

isValid in interface StackManipulation

Returns:

If false, this manipulation cannot be applied and should throw an exception.

apply

public StackManipulation.Size apply(org.objectweb.asm.MethodVisitor methodVisitor,
                                    Instrumentation.Context instrumentationContext)

Description copied from interface: StackManipulation

Applies the stack manipulation that is described by this instance.

Specified by:

apply in interface StackManipulation

Parameters:

methodVisitor - The method visitor used to write the method implementation to.

instrumentationContext - The context of the current instrumentation.

Returns:

The changes to the size of the operand stack that are implied by this stack manipulation.