/*
* Copyright 2014 - 2019 Rafael Winterhalter
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.bytebuddy.implementation.bytecode.assign.reference;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.implementation.bytecode.StackManipulation;
import net.bytebuddy.implementation.bytecode.assign.Assigner;
import net.bytebuddy.implementation.bytecode.assign.TypeCasting;
A simple assigner that is capable of handling the casting of reference types. Primitives can only be assigned to
each other if they represent the same type.
/**
* A simple assigner that is capable of handling the casting of reference types. Primitives can only be assigned to
* each other if they represent the same type.
*/
public enum ReferenceTypeAwareAssigner implements Assigner {
The singleton instance.
/**
* The singleton instance.
*/
INSTANCE;
{@inheritDoc}
/**
* {@inheritDoc}
*/
public StackManipulation assign(TypeDescription.Generic source, TypeDescription.Generic target, Typing typing) {
if (source.isPrimitive() || target.isPrimitive()) {
return source.equals(target)
? StackManipulation.Trivial.INSTANCE
: StackManipulation.Illegal.INSTANCE;
} else if (source.asErasure().isAssignableTo(target.asErasure())) {
return StackManipulation.Trivial.INSTANCE;
} else if (typing.isDynamic()) {
return TypeCasting.to(target);
} else {
return StackManipulation.Illegal.INSTANCE;
}
}
}