1<?php
2
3/*
4 * This file is part of Twig.
5 *
6 * (c) Fabien Potencier
7 * (c) Armin Ronacher
8 *
9 * For the full copyright and license information, please view the LICENSE
10 * file that was distributed with this source code.
11 */
12
13namespace Twig;
14
15/**
16 * @author Fabien Potencier <fabien@symfony.com>
17 */
18final class Token
19{
20    public const EOF_TYPE = -1;
21    public const TEXT_TYPE = 0;
22    public const BLOCK_START_TYPE = 1;
23    public const VAR_START_TYPE = 2;
24    public const BLOCK_END_TYPE = 3;
25    public const VAR_END_TYPE = 4;
26    public const NAME_TYPE = 5;
27    public const NUMBER_TYPE = 6;
28    public const STRING_TYPE = 7;
29    public const OPERATOR_TYPE = 8;
30    public const PUNCTUATION_TYPE = 9;
31    public const INTERPOLATION_START_TYPE = 10;
32    public const INTERPOLATION_END_TYPE = 11;
33    /**
34     * @deprecated since Twig 3.21, "arrow" is now an operator
35     */
36    public const ARROW_TYPE = 12;
37    /**
38     * @deprecated since Twig 3.21, "spread" is now an operator
39     */
40    public const SPREAD_TYPE = 13;
41
42    public function __construct(
43        private int $type,
44        private $value,
45        private int $lineno,
46    ) {
47        if (self::ARROW_TYPE === $type) {
48            trigger_deprecation('twig/twig', '3.21', 'The "%s" token type is deprecated, "arrow" is now an operator.', self::ARROW_TYPE);
49        }
50        if (self::SPREAD_TYPE === $type) {
51            trigger_deprecation('twig/twig', '3.21', 'The "%s" token type is deprecated, "spread" is now an operator.', self::SPREAD_TYPE);
52        }
53    }
54
55    public function __toString(): string
56    {
57        return \sprintf('%s(%s)', self::typeToString($this->type, true), $this->value);
58    }
59
60    /**
61     * Tests the current token for a type and/or a value.
62     *
63     * Parameters may be:
64     *  * just type
65     *  * type and value (or array of possible values)
66     *  * just value (or array of possible values) (NAME_TYPE is used as type)
67     *
68     * @param array|string|int  $type   The type to test
69     * @param array|string|null $values The token value
70     */
71    public function test($type, $values = null): bool
72    {
73        if (null === $values && !\is_int($type)) {
74            $values = $type;
75            $type = self::NAME_TYPE;
76        }
77
78        if (self::ARROW_TYPE === $type) {
79            trigger_deprecation('twig/twig', '3.21', 'The "%s" token type is deprecated, "arrow" is now an operator.', self::typeToEnglish(self::ARROW_TYPE));
80
81            return self::OPERATOR_TYPE === $this->type && '=>' === $this->value;
82        }
83        if (self::SPREAD_TYPE === $type) {
84            trigger_deprecation('twig/twig', '3.21', 'The "%s" token type is deprecated, "spread" is now an operator.', self::typeToEnglish(self::SPREAD_TYPE));
85
86            return self::OPERATOR_TYPE === $this->type && '...' === $this->value;
87        }
88
89        $typeMatches = $this->type === $type;
90        if ($typeMatches && self::PUNCTUATION_TYPE === $type && \in_array($this->value, ['(', '[', '|', '.', '?', '?:'], true) && $values) {
91            foreach ((array) $values as $value) {
92                if (\in_array($value, ['(', '[', '|', '.', '?', '?:'], true)) {
93                    trigger_deprecation('twig/twig', '3.21', 'The "%s" token is now an "%s" token instead of a "%s" one.', $this->value, self::typeToEnglish(self::OPERATOR_TYPE), $this->toEnglish());
94
95                    break;
96                }
97            }
98        }
99        if (!$typeMatches) {
100            if (self::OPERATOR_TYPE === $type && self::PUNCTUATION_TYPE === $this->type) {
101                if ($values) {
102                    foreach ((array) $values as $value) {
103                        if (\in_array($value, ['(', '[', '|', '.', '?', '?:'], true)) {
104                            $typeMatches = true;
105
106                            break;
107                        }
108                    }
109                } else {
110                    $typeMatches = true;
111                }
112            }
113        }
114
115        return $typeMatches && (
116            null === $values
117            || (\is_array($values) && \in_array($this->value, $values, true))
118            || $this->value == $values
119        );
120    }
121
122    public function getLine(): int
123    {
124        return $this->lineno;
125    }
126
127    /**
128     * @deprecated since Twig 3.19
129     */
130    public function getType(): int
131    {
132        trigger_deprecation('twig/twig', '3.19', \sprintf('The "%s()" method is deprecated.', __METHOD__));
133
134        return $this->type;
135    }
136
137    public function getValue()
138    {
139        return $this->value;
140    }
141
142    public function toEnglish(): string
143    {
144        return self::typeToEnglish($this->type);
145    }
146
147    public static function typeToString(int $type, bool $short = false): string
148    {
149        switch ($type) {
150            case self::EOF_TYPE:
151                $name = 'EOF_TYPE';
152                break;
153            case self::TEXT_TYPE:
154                $name = 'TEXT_TYPE';
155                break;
156            case self::BLOCK_START_TYPE:
157                $name = 'BLOCK_START_TYPE';
158                break;
159            case self::VAR_START_TYPE:
160                $name = 'VAR_START_TYPE';
161                break;
162            case self::BLOCK_END_TYPE:
163                $name = 'BLOCK_END_TYPE';
164                break;
165            case self::VAR_END_TYPE:
166                $name = 'VAR_END_TYPE';
167                break;
168            case self::NAME_TYPE:
169                $name = 'NAME_TYPE';
170                break;
171            case self::NUMBER_TYPE:
172                $name = 'NUMBER_TYPE';
173                break;
174            case self::STRING_TYPE:
175                $name = 'STRING_TYPE';
176                break;
177            case self::OPERATOR_TYPE:
178                $name = 'OPERATOR_TYPE';
179                break;
180            case self::PUNCTUATION_TYPE:
181                $name = 'PUNCTUATION_TYPE';
182                break;
183            case self::INTERPOLATION_START_TYPE:
184                $name = 'INTERPOLATION_START_TYPE';
185                break;
186            case self::INTERPOLATION_END_TYPE:
187                $name = 'INTERPOLATION_END_TYPE';
188                break;
189            case self::ARROW_TYPE:
190                $name = 'ARROW_TYPE';
191                break;
192            case self::SPREAD_TYPE:
193                $name = 'SPREAD_TYPE';
194                break;
195            default:
196                throw new \LogicException(\sprintf('Token of type "%s" does not exist.', $type));
197        }
198
199        return $short ? $name : 'Twig\Token::'.$name;
200    }
201
202    public static function typeToEnglish(int $type): string
203    {
204        switch ($type) {
205            case self::EOF_TYPE:
206                return 'end of template';
207            case self::TEXT_TYPE:
208                return 'text';
209            case self::BLOCK_START_TYPE:
210                return 'begin of statement block';
211            case self::VAR_START_TYPE:
212                return 'begin of print statement';
213            case self::BLOCK_END_TYPE:
214                return 'end of statement block';
215            case self::VAR_END_TYPE:
216                return 'end of print statement';
217            case self::NAME_TYPE:
218                return 'name';
219            case self::NUMBER_TYPE:
220                return 'number';
221            case self::STRING_TYPE:
222                return 'string';
223            case self::OPERATOR_TYPE:
224                return 'operator';
225            case self::PUNCTUATION_TYPE:
226                return 'punctuation';
227            case self::INTERPOLATION_START_TYPE:
228                return 'begin of string interpolation';
229            case self::INTERPOLATION_END_TYPE:
230                return 'end of string interpolation';
231            case self::ARROW_TYPE:
232                return 'arrow function';
233            case self::SPREAD_TYPE:
234                return 'spread operator';
235            default:
236                throw new \LogicException(\sprintf('Token of type "%s" does not exist.', $type));
237        }
238    }
239}
240