net.bytebuddy.implementation

Class HashCodeMethod.Appender

java.lang.Object

net.bytebuddy.implementation.HashCodeMethod.Appender

All Implemented Interfaces:

ByteCodeAppender

Enclosing class:

HashCodeMethod

@HashCodeAndEqualsPlugin.Enhance
protected static class HashCodeMethod.Appender
extends Object
implements ByteCodeAppender

A byte code appender to implement a hash code method.

Nested Class Summary

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

ByteCodeAppender.Compound, ByteCodeAppender.Simple, ByteCodeAppender.Size

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Appender(StackManipulation initialValue, int multiplier, List<FieldDescription.InDefinedShape> fieldDescriptions, ElementMatcher<? super FieldDescription.InDefinedShape> nonNullable) Creates a new appender for implementing a hash code method.

Method Summary

Modifier and Type	Method and Description
ByteCodeAppender.Size	apply(org.objectweb.asm.MethodVisitor methodVisitor, Implementation.Context implementationContext, MethodDescription instrumentedMethod) Applies this byte code appender to a type creation process.

Methods inherited from class java.lang.Object

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

Constructor Detail

Appender

protected Appender(StackManipulation initialValue,
                   int multiplier,
                   List<FieldDescription.InDefinedShape> fieldDescriptions,
                   ElementMatcher<? super FieldDescription.InDefinedShape> nonNullable)

Creates a new appender for implementing a hash code method.

Parameters:

initialValue - Loads the initial hash code onto the operand stack.

multiplier - A multiplier for each value before adding a field's hash code value.

fieldDescriptions - A list of fields to include in the hash code computation.

nonNullable - A matcher to determine fields of a reference type that cannot be null.

Method Detail

apply

public ByteCodeAppender.Size apply(org.objectweb.asm.MethodVisitor methodVisitor,
                                   Implementation.Context implementationContext,
                                   MethodDescription instrumentedMethod)

Applies this byte code appender to a type creation process.

Specified by:

apply in interface ByteCodeAppender

Parameters:

methodVisitor - The method visitor to which the byte code appender writes its code to.

implementationContext - The implementation context of the current type creation process.

instrumentedMethod - The method that is the target of the instrumentation.

Returns:

The required size for the applied byte code to run.