net.bytebuddy.implementation

Class EqualsMethod.NullValueGuard.UsingJump

java.lang.Object

net.bytebuddy.implementation.EqualsMethod.NullValueGuard.UsingJump

All Implemented Interfaces:

EqualsMethod.NullValueGuard

Enclosing interface:

EqualsMethod.NullValueGuard

@HashCodeAndEqualsPlugin.Enhance
public static class EqualsMethod.NullValueGuard.UsingJump
extends java.lang.Object
implements EqualsMethod.NullValueGuard

A null value guard that expects a reference type and that skips the comparison if both values are null but returns if the invoked instance's field value is null but not the compared instance's value.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	EqualsMethod.NullValueGuard.UsingJump.AfterInstruction The stack manipulation to apply after the equality computation.
protected class	EqualsMethod.NullValueGuard.UsingJump.BeforeInstruction The stack manipulation to apply before the equality computation.

Nested classes/interfaces inherited from interface net.bytebuddy.implementation.EqualsMethod.NullValueGuard

EqualsMethod.NullValueGuard.NoOp, EqualsMethod.NullValueGuard.UsingJump

Field Summary

Fields

Modifier and Type	Field and Description
private static java.lang.Object[]	EMPTY An empty array.
private org.objectweb.asm.Label	endOfBlock A label indicating the end of the null-guarding block.
private org.objectweb.asm.Label	firstValueNull The label to jump to if the first value is null whereas the second value is not null.
private MethodDescription	instrumentedMethod The instrumented method.
private static java.lang.Object[]	REFERENCE An array containing a single reference value.
private org.objectweb.asm.Label	secondValueNull The label to jump to if the second value is null.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	UsingJump(MethodDescription instrumentedMethod) Creates a new null value guard using a jump instruction for null values.

Method Summary

Modifier and Type	Method and Description
StackManipulation	after() Returns a stack manipulation to apply after computing equality.
StackManipulation	before() Returns a stack manipulation to apply before computing equality.
int	getRequiredVariablePadding() Returns the required padding for the local variable array to apply this guard.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

private static final java.lang.Object[] EMPTY

An empty array.

REFERENCE

private static final java.lang.Object[] REFERENCE

An array containing a single reference value.

instrumentedMethod

private final MethodDescription instrumentedMethod

The instrumented method.

firstValueNull

private final org.objectweb.asm.Label firstValueNull

The label to jump to if the first value is null whereas the second value is not null.

secondValueNull

private final org.objectweb.asm.Label secondValueNull

The label to jump to if the second value is null.

endOfBlock

private final org.objectweb.asm.Label endOfBlock

A label indicating the end of the null-guarding block.

Constructor Detail

UsingJump

protected UsingJump(MethodDescription instrumentedMethod)

Creates a new null value guard using a jump instruction for null values.

Parameters:

instrumentedMethod - The instrumented method.

Method Detail

before

public StackManipulation before()

Returns a stack manipulation to apply before computing equality.

Specified by:

before in interface EqualsMethod.NullValueGuard

Returns:

A stack manipulation to apply before computing equality.

after

public StackManipulation after()

Returns a stack manipulation to apply after computing equality.

Specified by:

after in interface EqualsMethod.NullValueGuard

Returns:

A stack manipulation to apply after computing equality.

getRequiredVariablePadding

public int getRequiredVariablePadding()

Returns the required padding for the local variable array to apply this guard.

Specified by:

getRequiredVariablePadding in interface EqualsMethod.NullValueGuard

Returns:

The required padding for the local variable array to apply this guard.