/*
 * 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.bind;

import net.bytebuddy.description.method.MethodDescription;
import net.bytebuddy.description.type.TypeDescription;

This ambiguity resolver matches that method out of two methods that is declared by the more specific type. If two
methods are declared by the same type or by two unrelated types, this resolver returns an ambiguous result.
/**
 * This ambiguity resolver matches that method out of two methods that is declared by the more specific type. If two
 * methods are declared by the same type or by two unrelated types, this resolver returns an ambiguous result.
 */
public enum DeclaringTypeResolver implements MethodDelegationBinder.AmbiguityResolver {

    
The singleton instance.
/**
     * The singleton instance.
     */
    INSTANCE;

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public Resolution resolve(MethodDescription source,
                              MethodDelegationBinder.MethodBinding left,
                              MethodDelegationBinder.MethodBinding right) {
        TypeDescription leftType = left.getTarget().getDeclaringType().asErasure();
        TypeDescription rightType = right.getTarget().getDeclaringType().asErasure();
        if (leftType.equals(rightType)) {
            return Resolution.AMBIGUOUS;
        } else if (leftType.isAssignableFrom(rightType)) {
            return Resolution.RIGHT;
        } else if (leftType.isAssignableTo(rightType)) {
            return Resolution.LEFT;
        } else {
            return Resolution.AMBIGUOUS;
        }
    }
}