net.bytebuddy.implementation.bytecode.assign

Class InstanceCheck

java.lang.Object

net.bytebuddy.implementation.bytecode.assign.InstanceCheck

All Implemented Interfaces:

StackManipulation

@HashCodeAndEqualsPlugin.Enhance
public class InstanceCheck
extends java.lang.Object
implements StackManipulation

Implements an instanceof check.

Nested Class Summary

Nested classes/interfaces inherited from interface net.bytebuddy.implementation.bytecode.StackManipulation

StackManipulation.Compound, StackManipulation.Illegal, StackManipulation.Size, StackManipulation.Trivial

Field Summary

Fields

Modifier and Type	Field and Description
private TypeDescription	typeDescription The type to apply the instance check against.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	InstanceCheck(TypeDescription typeDescription) Creates a new instance check.

Method Summary

Modifier and Type	Method and Description
StackManipulation.Size	apply(org.objectweb.asm.MethodVisitor methodVisitor, Implementation.Context implementationContext) Applies the stack manipulation that is described by this instance.
boolean	isValid() Determines if this stack manipulation is valid.
static StackManipulation	of(TypeDescription typeDescription) Creates a new instance check.

Methods inherited from class java.lang.Object

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

Field Detail

typeDescription

private final TypeDescription typeDescription

The type to apply the instance check against.

Constructor Detail

InstanceCheck

protected InstanceCheck(TypeDescription typeDescription)

Creates a new instance check.

Parameters:

typeDescription - The type to apply the instance check against.

Method Detail

of

public static StackManipulation of(TypeDescription typeDescription)

Creates a new instance check.

Parameters:

typeDescription - The type to apply the instance check against.

Returns:

An appropriate stack manipulation.

isValid

public boolean isValid()

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,
                                    Implementation.Context implementationContext)

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.

implementationContext - The context of the current implementation.

Returns:

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