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/*
 * Copyright 2020 the original author or authors.
 *
 * 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 org.gradle.internal.snapshot.impl;

import org.gradle.internal.hash.HashCode;
import org.gradle.internal.hash.Hasher;

import javax.annotation.Nullable;

public class LambdaImplementationSnapshot extends ImplementationSnapshot {

    public LambdaImplementationSnapshot(String typeName) {
        super(typeName);
    }

    @Override
    public void appendToHasher(Hasher hasher) {
        throw new RuntimeException("Cannot hash implementation of lambda " + getTypeName());
    }

    @Override
    protected boolean isSameSnapshot(@Nullable Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        LambdaImplementationSnapshot that = (LambdaImplementationSnapshot) o;

        return getTypeName().equals(that.getTypeName());
    }

    @Override
    public HashCode getClassLoaderHash() {
        return null;
    }

    @Override
    public boolean isUnknown() {
        return true;
    }

    @Override
    @Nullable
    public UnknownReason getUnknownReason() {
        return UnknownReason.LAMBDA;
    }

    @Override
    public boolean equals(Object o) {
        return false;
    }

    @Override
    public int hashCode() {
        return getTypeName().hashCode();
    }

    @Override
    public String toString() {
        return getTypeName();
    }
}