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

Class MethodConstant

java.lang.Object

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

All Implemented Interfaces:

StackManipulation

public abstract class MethodConstant
extends Object
implements StackManipulation

Represents the creation of a Method value which can be created from a given set of constant pool values and can therefore be considered a constant in the broader meaning.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	MethodConstant.CanCache Represents a MethodConstant that is directly loaded onto the operand stack without caching the value.

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

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

Field Summary

Fields

Modifier and Type	Field and Description
protected MethodDescription	methodDescription A description of the method to be loaded onto the stack.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	MethodConstant(MethodDescription methodDescription) Creates a new method constant.

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.
StackManipulation	cached() Returns a cached version of this method constant as specified by MethodConstant.Cached.
boolean	equals(Object other)
static MethodConstant.CanCache	forMethod(MethodDescription methodDescription) Creates a stack manipulation that loads a method constant onto the operand stack.
protected abstract String	getDescriptor() Returns the descriptor of the Class method for creating this method constant.
protected abstract String	getMethodName() Returns the name of the Class method for creating this method constant.
int	hashCode()
boolean	isValid() Determines if this stack manipulation is valid.
protected abstract StackManipulation.Size	prepare(org.objectweb.asm.MethodVisitor methodVisitor) Applies all preparation to the given method visitor.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

methodDescription

protected final MethodDescription methodDescription

A description of the method to be loaded onto the stack.

Constructor Detail

MethodConstant

protected MethodConstant(MethodDescription methodDescription)

Creates a new method constant.

Parameters:

methodDescription - The method description for which the Method representation should be created.

Method Detail

forMethod

public static MethodConstant.CanCache forMethod(MethodDescription methodDescription)

Creates a stack manipulation that loads a method constant onto the operand stack.

Parameters:

methodDescription - The method to be loaded onto the stack.

Returns:

A stack manipulation that assigns a method constant for the given method description.

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.

prepare

protected abstract StackManipulation.Size prepare(org.objectweb.asm.MethodVisitor methodVisitor)

Applies all preparation to the given method visitor.

Parameters:

methodVisitor - The method visitor to which the preparation is applied.

Returns:

The size of this preparation.

getMethodName

protected abstract String getMethodName()

Returns the name of the Class method for creating this method constant.

Returns:

The descriptor for creating this method constant.

getDescriptor

protected abstract String getDescriptor()

Returns the descriptor of the Class method for creating this method constant.

Returns:

The descriptor for creating this method constant.

cached

public StackManipulation cached()

Returns a cached version of this method constant as specified by MethodConstant.Cached.

Returns:

A cached version of this method constant.

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