13138848026

Committed 04 Feb 2025 02:53PM UTC coverage: 92.108% (+2.2%) from 89.877%

Build # 13138848026

Build Type

push

github

Committed by

mtf90

Commit Message

[maven-release-plugin] prepare release automatalib-0.12.0

Run Details

16609 of 18032 relevant lines covered (92.11%)

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88.24

/commons/smartcollections/src/main/java/net/automatalib/common/smartcollection/ReflexiveMapView.java

/* Copyright (C) 2013-2025 TU Dortmund University
 * This file is part of AutomataLib <https://automatalib.net>.
 *
 * 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.automatalib.common.smartcollection;

import java.util.AbstractMap;
import java.util.AbstractSet;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.checkerframework.checker.nullness.qual.KeyFor;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * An immutable, reflexive {@link Map} view for a given set of elements. This map is backed by the given set elements,
 * i.e. changes to the passed sets are propagated to this map.
 *
 * @param <T>
 *         element type
 */
public class ReflexiveMapView<T> extends AbstractMap<T, T> {

    private final Set<@KeyFor("this") T> domain;

    public ReflexiveMapView(Set<T> domain) {
        this.domain = Collections.unmodifiableSet(domain);
    }

    @Override
    public Set<Entry<@KeyFor("this") T, T>> entrySet() {
        return new EntrySet();
    }

    @Override
    public boolean containsValue(@Nullable Object value) {
        return containsKey(value);
    }

    @Override
    @SuppressWarnings("contracts.conditional.postcondition") // condition is satisfied
    public boolean containsKey(@Nullable Object key) {
        return this.domain.contains(key);
    }

    @Override
    @SuppressWarnings("unchecked")
    public @Nullable T get(@Nullable Object key) {
        return this.domain.contains(key) ? (T) key : null;
    }

    @Override
    public Set<@KeyFor("this") T> keySet() {
        return this.domain;
    }

    @Override
    public Set<T> values() {
        return this.domain;
    }

    private final class EntrySet extends AbstractSet<Entry<@KeyFor("this") T, T>> {

        @Override
        public Iterator<Entry<@KeyFor("this") T, T>> iterator() {
            return new Iter();
        }

        @Override
        public int size() {
            return domain.size();
        }
    }

    private final class Iter implements Iterator<Entry<@KeyFor("this") T, T>> {

        final Iterator<@KeyFor("this") T> iter = domain.iterator();

        @Override
        public boolean hasNext() {
            return iter.hasNext();
        }

        @Override
        public Entry<@KeyFor("this") T, T> next() {
            final @KeyFor("this") T next = iter.next();
            return new SimpleImmutableEntry<>(next, next);
        }
    }
}

1	/* Copyright (C) 2013-2025 TU Dortmund University
2	* This file is part of AutomataLib <https://automatalib.net>.
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16	package net.automatalib.common.smartcollection;
17
18	import java.util.AbstractMap;
19	import java.util.AbstractSet;
20	import java.util.Collections;
21	import java.util.Iterator;
22	import java.util.Map;
23	import java.util.Set;
24
25	import org.checkerframework.checker.nullness.qual.KeyFor;
26	import org.checkerframework.checker.nullness.qual.Nullable;
27
28	/**
29	* An immutable, reflexive {@link Map} view for a given set of elements. This map is backed by the given set elements,
30	* i.e. changes to the passed sets are propagated to this map.
31	*
32	* @param <T>
33	* element type
34	*/
35	public class ReflexiveMapView<T> extends AbstractMap<T, T> {
36
37	private final Set<@KeyFor("this") T> domain;
38
39	public ReflexiveMapView(Set<T> domain) {	2✔
40	this.domain = Collections.unmodifiableSet(domain);	2✔
41	}	2✔
42
43	@Override
44	public Set<Entry<@KeyFor("this") T, T>> entrySet() {
45	return new EntrySet();	2✔
46	}
47
48	@Override
49	public boolean containsValue(@Nullable Object value) {
50	return containsKey(value);	×
51	}
52
53	@Override
54	@SuppressWarnings("contracts.conditional.postcondition") // condition is satisfied
55	public boolean containsKey(@Nullable Object key) {
56	return this.domain.contains(key);	×
57	}
58
59	@Override
60	@SuppressWarnings("unchecked")
61	public @Nullable T get(@Nullable Object key) {
62	return this.domain.contains(key) ? (T) key : null;	2✔
63	}
64
65	@Override
66	public Set<@KeyFor("this") T> keySet() {
67	return this.domain;	2✔
68	}
69
70	@Override
71	public Set<T> values() {
72	return this.domain;	2✔
73	}
74
75	private final class EntrySet extends AbstractSet<Entry<@KeyFor("this") T, T>> {	2✔
76
77	@Override
78	public Iterator<Entry<@KeyFor("this") T, T>> iterator() {
79	return new Iter();	2✔
80	}
81
82	@Override
83	public int size() {
84	return domain.size();	2✔
85	}
86	}
87
88	private final class Iter implements Iterator<Entry<@KeyFor("this") T, T>> {	2✔
89
90	final Iterator<@KeyFor("this") T> iter = domain.iterator();	2✔
91
92	@Override
93	public boolean hasNext() {
94	return iter.hasNext();	2✔
95	}
96
97	@Override
98	public Entry<@KeyFor("this") T, T> next() {
99	final @KeyFor("this") T next = iter.next();	2✔
100	return new SimpleImmutableEntry<>(next, next);	2✔
101	}
102	}
103	}

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