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

Class MethodHandleConstant

java.lang.Object

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

All Implemented Interfaces:

StackManipulation

public class MethodHandleConstant
extends Object
implements StackManipulation

A constant for a Java 7 java.lang.invoke.MethodHandle.

Nested Class Summary

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

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

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.
boolean	equals(Object other)
int	hashCode()
static boolean	isRepresentedBy(TypeDescription typeDescription) Checks if a type represents the java.lang.invoke.MethodHandle type.
boolean	isValid() Determines if this stack manipulation is valid.
static StackManipulation	of(MethodDescription methodDescription) Creates a method handle for a method.
static StackManipulation	ofGetter(FieldDescription fieldDescription) Creates a method handle for a field getter.
static StackManipulation	ofPutter(FieldDescription fieldDescription) Creates a method handle for a field putter.
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

isRepresentedBy

public static boolean isRepresentedBy(TypeDescription typeDescription)

Checks if a type represents the java.lang.invoke.MethodHandle type.

Parameters:

typeDescription - The type to be checked.

Returns:

true if the given type represents a java.lang.invoke.MethodHandle.

of

public static StackManipulation of(MethodDescription methodDescription)

Creates a method handle for a method.

Parameters:

methodDescription - The method for which a method handle is to be put onto the operand stack.

Returns:

A stack manipulation that represents the loading of the handle.

ofGetter

public static StackManipulation ofGetter(FieldDescription fieldDescription)

Creates a method handle for a field getter.

Parameters:

fieldDescription - The field for which a get handle is to be put onto the operand stack.

Returns:

A stack manipulation that represents the loading of the handle.

ofPutter

public static StackManipulation ofPutter(FieldDescription fieldDescription)

Creates a method handle for a field putter.

Parameters:

fieldDescription - The field for which a put handle is to be put onto the operand stack.

Returns:

A stack manipulation that represents the loading of the handle.

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.

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object