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1<?php
2
3declare(strict_types=1);
4
5/**
6 * Ergonomic utilities for PHP enums, including names, values, lookups, and option maps.
7 *
8 * This file is part of fast-forward/enum project.
9 *
10 * @author   Felipe Sayão Lobato Abreu <github@mentordosnerds.com>
11 * @license  https://opensource.org/licenses/MIT MIT License
12 *
13 * @see      https://github.com/php-fast-forward/enum
14 * @see      https://github.com/php-fast-forward/enum/issues
15 * @see      https://php-fast-forward.github.io/enum/
16 * @see      https://datatracker.ietf.org/doc/html/rfc2119
17 */
18
19namespace FastForward\Enum\Process;
20
21use FastForward\Enum\DescribedEnumInterface;
22use FastForward\Enum\LabeledEnumInterface;
23use FastForward\Enum\Trait\Comparable;
24use FastForward\Enum\Trait\HasLabel;
25use FastForward\Enum\Trait\HasNameLookup;
26use FastForward\Enum\Trait\HasNameMap;
27use FastForward\Enum\Trait\HasNames;
28use FastForward\Enum\Trait\HasOptions;
29use FastForward\Enum\Trait\HasValueMap;
30use FastForward\Enum\Trait\HasValues;
31
32enum SignalBehavior: string implements DescribedEnumInterface, LabeledEnumInterface
33{
34    use Comparable;
35    use HasLabel;
36    use HasNameLookup;
37    use HasNameMap;
38    use HasNames;
39    use HasOptions;
40    use HasValueMap;
41    use HasValues;
42
43    case Ignore = 'ignore';
44    case Handle = 'handle';
45    case Propagate = 'propagate';
46
47    /**
48     * @return string
49     */
50    public function description(): string
51    {
52        return match ($this) {
53            self::Ignore => 'Signal is observed but intentionally ignored.',
54            self::Handle => 'Signal is intercepted and processed locally.',
55            self::Propagate => 'Signal is forwarded to child processes or outer handlers.',
56        };
57    }
58
59    /**
60     * @return bool
61     */
62    public function isTerminalControl(): bool
63    {
64        return $this->in([self::Handle, self::Propagate]);
65    }
66}