net.bytebuddy.instrumentation.method.bytecode.stack.assign.primitive

Class VoidAwareAssigner

java.lang.Object

net.bytebuddy.instrumentation.method.bytecode.stack.assign.primitive.VoidAwareAssigner

All Implemented Interfaces:

Assigner

public class VoidAwareAssigner
extends Object
implements Assigner

This assigner is able to handle the void type. This means:

1. If a void type is assigned to the void it will consider this a trivial operation.
2. If a void type is assigned to a non-void type, it will pop the top value from the stack.
3. If a non-void type is assigned to a void type, it will load the target type's default value only if this was configured at the assigner's construction.
4. If two non-void types are subject of the assignment, it will delegate the assignment to its chained assigner.

Constructor Summary

Constructors

Constructor and Description
VoidAwareAssigner(Assigner chained, boolean returnDefaultValue) Creates a new assigner that is capable of handling void types.

Method Summary

Modifier and Type	Method and Description
StackManipulation	assign(TypeDescription sourceType, TypeDescription targetType, boolean considerRuntimeType)
boolean	equals(Object other)
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

VoidAwareAssigner

public VoidAwareAssigner(Assigner chained,
                         boolean returnDefaultValue)

Creates a new assigner that is capable of handling void types.

Parameters:

chained - A chained assigner which will be queried by this assigner to handle assignments that do not involve a void type.

returnDefaultValue - Determines if this assigner will load a target type's default value onto the stack if a void type is assigned to a non-void type.

Method Detail

assign

public StackManipulation assign(TypeDescription sourceType,
                                TypeDescription targetType,
                                boolean considerRuntimeType)

Specified by:

assign in interface Assigner

Parameters:

sourceType - The original type that is to be transformed into the targetType.

targetType - The target type into which the sourceType is to be converted.

considerRuntimeType - A hint whether the assignment should consider the runtime type of the source type, i.e. if type down or cross castings are allowed.

Returns:

A stack manipulation that transforms the sourceType into the targetType if this is possible. An illegal stack manipulation otherwise.

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