31619759710

Committed 12 Aug 2026 04:27PM UTC coverage: 95.488% (+1.1%) from 94.368%

Build # 31619759710

Build Type

push

github

Committed by

mtf90

Commit Message

use new version scheme

Coverage Stats

15533 of 16267 relevant lines covered (95.49%)

1.72 hits per line

Source File
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88.89

/api/src/main/java/de/learnlib/AccessSequenceTransformer.java

/* Copyright (C) 2013-2026 TU Dortmund University
 * This file is part of LearnLib <https://learnlib.de>.
 *
 * 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 de.learnlib;

import net.automatalib.word.Word;

@FunctionalInterface
public interface AccessSequenceTransformer<I> {

    Word<I> transformAccessSequence(Word<I> word);

    default Word<I> longestASPrefix(Word<I> word) {
        int len = word.length();
        Word<I> lastPrefix = Word.epsilon();
        for (int i = 1; i <= len; i++) {
            Word<I> prefix = word.prefix(i);
            if (!isAccessSequence(prefix)) {
                return lastPrefix;
            }
            lastPrefix = prefix;
        }
        return word;
    }

    default boolean isAccessSequence(Word<I> word) {
        return word.equals(transformAccessSequence(word));
    }
}

1	/* Copyright (C) 2013-2026 TU Dortmund University
2	* This file is part of LearnLib <https://learnlib.de>.
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 de.learnlib;
17
18	import net.automatalib.word.Word;
19
20	@FunctionalInterface
21	public interface AccessSequenceTransformer<I> {
22
23	Word<I> transformAccessSequence(Word<I> word);
24
25	default Word<I> longestASPrefix(Word<I> word) {
26	int len = word.length();	1✔
27	Word<I> lastPrefix = Word.epsilon();	1✔
28	for (int i = 1; i <= len; i++) {	1✔
29	Word<I> prefix = word.prefix(i);	1✔
30	if (!isAccessSequence(prefix)) {	1✔
31	return lastPrefix;	1✔
32	}
33	lastPrefix = prefix;	1✔
34	}
35	return word;	×
36	}
37
38	default boolean isAccessSequence(Word<I> word) {
39	return word.equals(transformAccessSequence(word));	1✔
40	}
41	}

LearnLib / learnlib / 31619759710

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