21636962765

Committed 03 Feb 2026 03:39PM UTC coverage: 93.312% (+0.05%) from 93.264%

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added CLAUDE.md

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97.09

/src/Utils/Type.php

<?php

/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */

declare(strict_types=1);

namespace Nette\Utils;

use Nette;
use function array_map, array_search, array_splice, count, explode, implode, is_a, is_resource, is_string, strcasecmp, strtolower, substr, trim;


/**
 * PHP type reflection.
 */
final readonly class Type
{
        /** @var array<int, string|self> */
        private array $types;
        private bool $simple;
        private string $kind; // | &


        /**
         * Creates a Type object based on reflection. Resolves self, static and parent to the actual class name.
         * If the subject has no type, it returns null.
         */
        public static function fromReflection(
                \ReflectionFunctionAbstract|\ReflectionParameter|\ReflectionProperty $reflection,
        ): ?self
        {
                $type = $reflection instanceof \ReflectionFunctionAbstract
                        ? $reflection->getReturnType() ?? ($reflection instanceof \ReflectionMethod ? $reflection->getTentativeReturnType() : null)
                        : $reflection->getType();

                return $type ? self::fromReflectionType($type, $reflection, asObject: true) : null;
        }


        /** @param  \ReflectionFunctionAbstract|\ReflectionParameter|\ReflectionProperty  $of */
        private static function fromReflectionType(\ReflectionType $type, $of, bool $asObject): self|string
        {
                if ($type instanceof \ReflectionNamedType) {
                        $name = self::resolve($type->getName(), $of);
                        return $asObject
                                ? new self($type->allowsNull() && $name !== 'mixed' ? [$name, 'null'] : [$name])
                                : $name;

                } elseif ($type instanceof \ReflectionUnionType || $type instanceof \ReflectionIntersectionType) {
                        return new self(
                                array_map(fn($t) => self::fromReflectionType($t, $of, asObject: false), $type->getTypes()),
                                $type instanceof \ReflectionUnionType ? '|' : '&',
                        );

                } else {
                        throw new Nette\InvalidStateException('Unexpected type of ' . Reflection::toString($of));
                }
        }


        /**
         * Creates the Type object according to the text notation.
         */
        public static function fromString(string $type): self
        {
                if (!Validators::isTypeDeclaration($type)) {
                        throw new Nette\InvalidArgumentException("Invalid type '$type'.");
                }

                if ($type[0] === '?') {
                        return new self([substr($type, 1), 'null']);
                }

                $unions = [];
                foreach (explode('|', $type) as $part) {
                        $part = explode('&', trim($part, '()'));
                        $unions[] = count($part) === 1 ? $part[0] : new self($part, '&');
                }

                return count($unions) === 1 && $unions[0] instanceof self
                        ? $unions[0]
                        : new self($unions);
        }


        /**
         * Creates a Type object based on the actual type of value.
         */
        public static function fromValue(mixed $value): self
        {
                $type = get_debug_type($value);
                if (is_resource($value)) {
                        $type = 'mixed';
                } elseif (str_ends_with($type, '@anonymous')) {
                        $parent = substr($type, 0, -10);
                        $type = $parent === 'class' ? 'object' : $parent;
                }

                return new self([$type]);
        }


        /**
         * Resolves 'self', 'static' and 'parent' to the actual class name.
         */
        public static function resolve(
                string $type,
                \ReflectionFunction|\ReflectionMethod|\ReflectionParameter|\ReflectionProperty $of,
        ): string
        {
                $lower = strtolower($type);
                if ($of instanceof \ReflectionFunction) {
                        return $type;
                } elseif ($lower === 'self') {
                        return $of->getDeclaringClass()->name;
                } elseif ($lower === 'static') {
                        return ($of instanceof ReflectionMethod ? $of->getOriginalClass() : $of->getDeclaringClass())->name;
                } elseif ($lower === 'parent' && $of->getDeclaringClass()->getParentClass()) {
                        return $of->getDeclaringClass()->getParentClass()->name;
                } else {
                        return $type;
                }
        }


        /** @param  array<string|self>  $types */
        private function __construct(array $types, string $kind = '|')
        {
                $o = array_search('null', $types, strict: true);
                if ($o !== false) { // null as last
                        array_splice($types, $o, 1);
                        $types[] = 'null';
                }

                $this->types = $types;
                $this->simple = is_string($types[0]) && ($types[1] ?? 'null') === 'null';
                $this->kind = count($types) > 1 ? $kind : '';
        }


        public function __toString(): string
        {
                $multi = count($this->types) > 1;
                if ($this->simple) {
                        return ($multi ? '?' : '') . $this->types[0];
                }

                $res = [];
                foreach ($this->types as $type) {
                        $res[] = $type instanceof self && $multi ? "($type)" : $type;
                }
                return implode($this->kind, $res);
        }


        /**
         * Returns a type that accepts both the current type and the given type.
         */
        public function with(string|self $type): self
        {
                $type = is_string($type) ? self::fromString($type) : $type;
                return match (true) {
                        $this->allows($type) => $this,
                        $type->allows($this) => $type,
                        default => new self(array_unique(
                                array_merge($this->isIntersection() ? [$this] : $this->types, $type->isIntersection() ? [$type] : $type->types),
                                SORT_REGULAR,
                        ), '|'),
                };
        }


        /**
         * Returns the array of subtypes that make up the compound type as strings.
         * @return list<string|array<string|array<mixed>>>
         */
        public function getNames(): array
        {
                return array_map(fn($t) => $t instanceof self ? $t->getNames() : $t, $this->types);
        }


        /**
         * Returns the array of subtypes that make up the compound type as Type objects:
         * @return self[]
         */
        public function getTypes(): array
        {
                return array_map(fn($t) => $t instanceof self ? $t : new self([$t]), $this->types);
        }


        /**
         * Returns the type name for simple types, otherwise null.
         */
        public function getSingleName(): ?string
        {
                return $this->simple
                        ? $this->types[0]
                        : null;
        }


        /**
         * Returns true whether it is a union type.
         */
        public function isUnion(): bool
        {
                return $this->kind === '|';
        }


        /**
         * Returns true whether it is an intersection type.
         */
        public function isIntersection(): bool
        {
                return $this->kind === '&';
        }


        /**
         * Returns true whether it is a simple type. Single nullable types are also considered to be simple types.
         */
        public function isSimple(): bool
        {
                return $this->simple;
        }


        #[\Deprecated('use isSimple()')]
        public function isSingle(): bool
        {
                return $this->simple;
        }


        /**
         * Returns true whether the type is both a simple and a PHP built-in type.
         */
        public function isBuiltin(): bool
        {
                return $this->simple && Validators::isBuiltinType($this->types[0]);
        }


        /**
         * Returns true whether the type is both a simple and a class name.
         */
        public function isClass(): bool
        {
                return $this->simple && !Validators::isBuiltinType($this->types[0]);
        }


        /**
         * Determines if type is special class name self/parent/static.
         */
        public function isClassKeyword(): bool
        {
                return $this->simple && Validators::isClassKeyword($this->types[0]);
        }


        /**
         * Verifies type compatibility. For example, it checks if a value of a certain type could be passed as a parameter.
         */
        public function allows(string|self $type): bool
        {
                if ($this->types === ['mixed']) {
                        return true;
                }

                $type = is_string($type) ? self::fromString($type) : $type;
                return $type->isUnion()
                        ? Arrays::every($type->types, fn($t) => $this->allowsAny($t instanceof self ? $t->types : [$t]))
                        : $this->allowsAny($type->types);
        }


        /** @param  (string|self)[]  $givenTypes */
        private function allowsAny(array $givenTypes): bool
        {
                return $this->isUnion()
                        ? Arrays::some($this->types, fn($t) => $this->allowsAll($t instanceof self ? $t->types : [$t], $givenTypes))
                        : $this->allowsAll($this->types, $givenTypes);
        }


        /**
         * @param  (string|self)[]  $ourTypes
         * @param  (string|self)[]  $givenTypes
         */
        private function allowsAll(array $ourTypes, array $givenTypes): bool
        {
                return Arrays::every(
                        $ourTypes,
                        fn($ourType) => Arrays::some(
                                $givenTypes,
                                fn($givenType) => Validators::isBuiltinType($ourType)
                                        ? strcasecmp($ourType, $givenType) === 0
                                        : is_a($givenType, $ourType, allow_string: true),
                        ),
                );
        }
}

1	<?php
2
3	/**
4	* This file is part of the Nette Framework (https://nette.org)
5	* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
6	*/
7
8	declare(strict_types=1);
9
10	namespace Nette\Utils;
11
12	use Nette;
13	use function array_map, array_search, array_splice, count, explode, implode, is_a, is_resource, is_string, strcasecmp, strtolower, substr, trim;
14
15
16	/**
17	* PHP type reflection.
18	*/
19	final readonly class Type
20	{
21	/** @var array<int, string\|self> */
22	private array $types;
23	private bool $simple;
24	private string $kind; // \| &
25
26
27	/**
28	* Creates a Type object based on reflection. Resolves self, static and parent to the actual class name.
29	* If the subject has no type, it returns null.
30	*/
31	public static function fromReflection(	1✔
32	\ReflectionFunctionAbstract\|\ReflectionParameter\|\ReflectionProperty $reflection,
33	): ?self
34	{
35	$type = $reflection instanceof \ReflectionFunctionAbstract	1✔
36	? $reflection->getReturnType() ?? ($reflection instanceof \ReflectionMethod ? $reflection->getTentativeReturnType() : null)	1✔
37	: $reflection->getType();	1✔
38
39	return $type ? self::fromReflectionType($type, $reflection, asObject: true) : null;	1✔
40	}
41
42
43	/** @param \ReflectionFunctionAbstract\|\ReflectionParameter\|\ReflectionProperty $of */
44	private static function fromReflectionType(\ReflectionType $type, $of, bool $asObject): self\|string	1✔
45	{
46	if ($type instanceof \ReflectionNamedType) {	1✔
47	$name = self::resolve($type->getName(), $of);	1✔
48	return $asObject	1✔
49	? new self($type->allowsNull() && $name !== 'mixed' ? [$name, 'null'] : [$name])	1✔
50	: $name;	1✔
51
52	} elseif ($type instanceof \ReflectionUnionType \|\| $type instanceof \ReflectionIntersectionType) {	1✔
53	return new self(	1✔
54	array_map(fn($t) => self::fromReflectionType($t, $of, asObject: false), $type->getTypes()),	1✔
55	$type instanceof \ReflectionUnionType ? '\|' : '&',	1✔
56	);
57
58	} else {
59	throw new Nette\InvalidStateException('Unexpected type of ' . Reflection::toString($of));	×
60	}
61	}
62
63
64	/**
65	* Creates the Type object according to the text notation.
66	*/
67	public static function fromString(string $type): self	1✔
68	{
69	if (!Validators::isTypeDeclaration($type)) {	1✔
70	throw new Nette\InvalidArgumentException("Invalid type '$type'.");	×
71	}
72
73	if ($type[0] === '?') {	1✔
74	return new self([substr($type, 1), 'null']);	1✔
75	}
76
77	$unions = [];	1✔
78	foreach (explode('\|', $type) as $part) {	1✔
79	$part = explode('&', trim($part, '()'));	1✔
80	$unions[] = count($part) === 1 ? $part[0] : new self($part, '&');	1✔
81	}
82
83	return count($unions) === 1 && $unions[0] instanceof self	1✔
84	? $unions[0]	1✔
85	: new self($unions);	1✔
86	}
87
88
89	/**
90	* Creates a Type object based on the actual type of value.
91	*/
92	public static function fromValue(mixed $value): self	1✔
93	{
94	$type = get_debug_type($value);	1✔
95	if (is_resource($value)) {	1✔
96	$type = 'mixed';	1✔
97	} elseif (str_ends_with($type, '@anonymous')) {	1✔
98	$parent = substr($type, 0, -10);	1✔
99	$type = $parent === 'class' ? 'object' : $parent;	1✔
100	}
101
102	return new self([$type]);	1✔
103	}
104
105
106	/**
107	* Resolves 'self', 'static' and 'parent' to the actual class name.
108	*/
109	public static function resolve(	1✔
110	string $type,
111	\ReflectionFunction\|\ReflectionMethod\|\ReflectionParameter\|\ReflectionProperty $of,
112	): string
113	{
114	$lower = strtolower($type);	1✔
115	if ($of instanceof \ReflectionFunction) {	1✔
116	return $type;	1✔
117	} elseif ($lower === 'self') {	1✔
118	return $of->getDeclaringClass()->name;	1✔
119	} elseif ($lower === 'static') {	1✔
120	return ($of instanceof ReflectionMethod ? $of->getOriginalClass() : $of->getDeclaringClass())->name;	1✔
121	} elseif ($lower === 'parent' && $of->getDeclaringClass()->getParentClass()) {	1✔
122	return $of->getDeclaringClass()->getParentClass()->name;	1✔
123	} else {
124	return $type;	1✔
125	}
126	}
127
128
129	/** @param array<string\|self> $types */
130	private function __construct(array $types, string $kind = '\|')	1✔
131	{
132	$o = array_search('null', $types, strict: true);	1✔
133	if ($o !== false) { // null as last	1✔
134	array_splice($types, $o, 1);	1✔
135	$types[] = 'null';	1✔
136	}
137
138	$this->types = $types;	1✔
139	$this->simple = is_string($types[0]) && ($types[1] ?? 'null') === 'null';	1✔
140	$this->kind = count($types) > 1 ? $kind : '';	1✔
141	}	1✔
142
143
144	public function __toString(): string
145	{
146	$multi = count($this->types) > 1;	1✔
147	if ($this->simple) {	1✔
148	return ($multi ? '?' : '') . $this->types[0];	1✔
149	}
150
151	$res = [];	1✔
152	foreach ($this->types as $type) {	1✔
153	$res[] = $type instanceof self && $multi ? "($type)" : $type;	1✔
154	}
155	return implode($this->kind, $res);	1✔
156	}
157
158
159	/**
160	* Returns a type that accepts both the current type and the given type.
161	*/
162	public function with(string\|self $type): self	1✔
163	{
164	$type = is_string($type) ? self::fromString($type) : $type;	1✔
165	return match (true) {
166	$this->allows($type) => $this,	1✔
167	$type->allows($this) => $type,	1✔
168	default => new self(array_unique(	1✔
169	array_merge($this->isIntersection() ? [$this] : $this->types, $type->isIntersection() ? [$type] : $type->types),	1✔
170	SORT_REGULAR,	1✔
171	), '\|'),	1✔
172	};
173	}
174
175
176	/**
177	* Returns the array of subtypes that make up the compound type as strings.
178	* @return list<string\|array<string\|array<mixed>>>
179	*/
180	public function getNames(): array
181	{
182	return array_map(fn($t) => $t instanceof self ? $t->getNames() : $t, $this->types);	1✔
183	}
184
185
186	/**
187	* Returns the array of subtypes that make up the compound type as Type objects:
188	* @return self[]
189	*/
190	public function getTypes(): array
191	{
192	return array_map(fn($t) => $t instanceof self ? $t : new self([$t]), $this->types);	1✔
193	}
194
195
196	/**
197	* Returns the type name for simple types, otherwise null.
198	*/
199	public function getSingleName(): ?string
200	{
201	return $this->simple	1✔
202	? $this->types[0]	1✔
203	: null;	1✔
204	}
205
206
207	/**
208	* Returns true whether it is a union type.
209	*/
210	public function isUnion(): bool
211	{
212	return $this->kind === '\|';	1✔
213	}
214
215
216	/**
217	* Returns true whether it is an intersection type.
218	*/
219	public function isIntersection(): bool
220	{
221	return $this->kind === '&';	1✔
222	}
223
224
225	/**
226	* Returns true whether it is a simple type. Single nullable types are also considered to be simple types.
227	*/
228	public function isSimple(): bool
229	{
230	return $this->simple;	1✔
231	}
232
233
234	#[\Deprecated('use isSimple()')]
235	public function isSingle(): bool
236	{
237	return $this->simple;	×
238	}
239
240
241	/**
242	* Returns true whether the type is both a simple and a PHP built-in type.
243	*/
244	public function isBuiltin(): bool
245	{
246	return $this->simple && Validators::isBuiltinType($this->types[0]);	1✔
247	}
248
249
250	/**
251	* Returns true whether the type is both a simple and a class name.
252	*/
253	public function isClass(): bool
254	{
255	return $this->simple && !Validators::isBuiltinType($this->types[0]);	1✔
256	}
257
258
259	/**
260	* Determines if type is special class name self/parent/static.
261	*/
262	public function isClassKeyword(): bool
263	{
264	return $this->simple && Validators::isClassKeyword($this->types[0]);	1✔
265	}
266
267
268	/**
269	* Verifies type compatibility. For example, it checks if a value of a certain type could be passed as a parameter.
270	*/
271	public function allows(string\|self $type): bool	1✔
272	{
273	if ($this->types === ['mixed']) {	1✔
274	return true;	1✔
275	}
276
277	$type = is_string($type) ? self::fromString($type) : $type;	1✔
278	return $type->isUnion()	1✔
279	? Arrays::every($type->types, fn($t) => $this->allowsAny($t instanceof self ? $t->types : [$t]))	1✔
280	: $this->allowsAny($type->types);	1✔
281	}
282
283
284	/** @param (string\|self)[] $givenTypes */
285	private function allowsAny(array $givenTypes): bool	1✔
286	{
287	return $this->isUnion()	1✔
288	? Arrays::some($this->types, fn($t) => $this->allowsAll($t instanceof self ? $t->types : [$t], $givenTypes))	1✔
289	: $this->allowsAll($this->types, $givenTypes);	1✔
290	}
291
292
293	/**
294	* @param (string\|self)[] $ourTypes
295	* @param (string\|self)[] $givenTypes
296	*/
297	private function allowsAll(array $ourTypes, array $givenTypes): bool	1✔
298	{
299	return Arrays::every(	1✔
300	$ourTypes,	1✔
301	fn($ourType) => Arrays::some(	1✔
302	$givenTypes,	1✔
303	fn($givenType) => Validators::isBuiltinType($ourType)	1✔
304	? strcasecmp($ourType, $givenType) === 0	1✔
305	: is_a($givenType, $ourType, allow_string: true),	1✔
306	),	1✔
307	);
308	}
309	}

nette / utils / 21636962765

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