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/*
* Copyright 2023 Code Intelligence GmbH
*
* 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 com.code_intelligence.jazzer.mutation.api;
import static java.util.Collections.newSetFromMap;
import static java.util.Objects.requireNonNull;
import java.util.IdentityHashMap;
import java.util.Set;
import java.util.function.Predicate;
public interface Debuggable {
/**
* Returns a string representation of the object that is meant to be used to make assertions about
* its structure in tests.
*
* @param isInCycle evaluates to {@code true} if a cycle has been detected during recursive calls
* of this function. Must be called at most once with {@code this} as the single
* argument. Implementing classes that know that their current instance can never
* be contained in recursive substructures need not call this method.
*/
String toDebugString(Predicate<Debuggable> isInCycle);
/**
* Returns a string representation of the given {@link Debuggable} that is meant to be used to
* make assertions about its structure in tests.
*/
static String getDebugString(Debuggable debuggable) {
Set<Debuggable> seen = newSetFromMap(new IdentityHashMap<>());
return debuggable.toDebugString(child -> !seen.add(requireNonNull(child)));
}
}
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