Enum::__callStatic() - Code Metrics - Inspection of "Merge pull request #62 from dionysiosarvanitis/fix..." - spatie/enum - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( db9ed6...3e7d9b )

by Tom

created 2020-07-17 19:51 UTC

Enum::__callStatic() B

↳ Parent: Enum

Complexity

Conditions	7
Paths	6

Size

Total Lines	21
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Importance

Changes	3
Bugs	0	Features	0

Metric	Value
cc	7
eloc	12
c	3
b	0
f	0
nc	6
nop	2
dl	0
loc	21
rs	8.8333

<?php

namespace Spatie\Enum;

use ArgumentCountError;
use BadMethodCallException;
use JsonSerializable;
use ReflectionClass;
use ReflectionMethod;
use Spatie\Enum\Exceptions\DuplicatedIndexException;
use Spatie\Enum\Exceptions\DuplicatedValueException;
use Spatie\Enum\Exceptions\InvalidIndexException;
use Spatie\Enum\Exceptions\InvalidNameException;
use Spatie\Enum\Exceptions\InvalidValueException;
use TypeError;

abstract class Enum implements Enumerable, JsonSerializable
{
    /** @var array[] */
    protected static $cache = [];

    /** @var int */
    protected $index;

    /** @var string */
    protected $value;

    /** @var string */
    protected $name;

    /**
     * This construct is not part of the public API and COULD change in a minor release.
     * You SHOULD NOT use it by your own - instead you SHOULD use the make() method.
     *
     * @internal
     * @see \Spatie\Enum\Enum::make()
     *
     * @param string|null $name
     * @param string|null $value
     * @param int|null $index
     */
    public function __construct(?string $name = null, ?string $value = null, ?int $index = null)
    {
        if (is_null($name) && is_null($value) && is_null($index)) {
            ['name' => $name, 'value' => $value, 'index' => $index] = $this->resolveByStaticCall();
        }

        if (is_null($name) || ! static::isValidName($name)) {
            throw new InvalidNameException($name, static::class);
        }

        if (is_null($value) || ! static::isValidValue($value)) {
            throw new InvalidValueException($value, static::class);
        }

        if (is_null($index) || ! static::isValidIndex($index)) {
            throw new InvalidIndexException($index, static::class);
        }

        $this->name = $name;
        $this->value = $value;
        $this->index = $index;
    }

    public function __call(string $name, array $arguments)
    {
        if (static::startsWith($name, 'is')) {
            return $this->isEqual(substr($name, 2));
        }

        if (static::isValidName($name)) {
            return static::make($name);
        }

        throw new BadMethodCallException('Call to undefined method '.static::class.'->'.$name.'()');
    }

    /**
     * @param string $name
     * @param mixed[] $arguments
     *
     * @return \Spatie\Enum\Enumerable|bool
     */
    public static function __callStatic(string $name, array $arguments)
    {
        if (static::startsWith($name, 'is')) {
            if (! isset($arguments[0])) {
                throw new ArgumentCountError('Calling '.static::class.'::'.$name.'() in static context requires one argument');
            }

            try {
                return static::make($arguments[0])->$name();
            } catch (InvalidValueException $error) {
                return false;
            } catch (InvalidIndexException $error) {
                return false;
            }
        }

        if (static::isValidName($name) || static::isValidValue($name)) {
            return static::make($name);
        }

        throw new BadMethodCallException('Call to undefined method '.static::class.'::'.$name.'()');
    }

    public function __toString(): string
    {
        return $this->getValue();
    }

    public function getIndex(): int
    {
        return $this->index;
    }

    public static function getIndices(): array
    {
        return array_column(static::resolve(), 'index');
    }

    public function getValue(): string
    {
        return $this->value;
    }

    public static function getValues(): array
    {
        return array_column(static::resolve(), 'value');
    }

    public function getName(): string
    {
        return $this->name;
    }

    public static function getNames(): array
    {
        return array_keys(static::resolve());
    }

    public function isAny(array $values): bool
    {
        foreach ($values as $value) {
            if ($this->isEqual($value)) {
                return true;
            }
        }

        return false;
    }

    public function isEqual($value): bool
    {
        if (is_int($value) || is_string($value)) {
            try {
                $value = static::make($value);
            } catch (InvalidValueException $error) {
                return false;
            } catch (InvalidIndexException $error) {
                return false;
            }
        }

        if ($value instanceof $this) {
            return $value->getValue() === $this->getValue();
        }

        return false;
    }

    public function jsonSerialize(): string
    {
        return $this->getValue();
    }

    /**
     * @param int|string $value
     *
     * @return static
     */
    public static function make($value): Enumerable
    {
        if (! is_int($value) && ! is_string($value)) {

            throw new TypeError(static::class.'::make() expects string|int as argument but '.gettype($value).' given');
        }

        $name = null;
        $index = null;

        if (is_int($value)) {
            if (! static::isValidIndex($value)) {
                throw new InvalidIndexException($value, static::class);
            }

            [$name, $index, $value] = static::resolveByIndex($value);
        } elseif (is_string($value)) {

            [$name, $index, $value] = static::resolveByString($value);
        }

        if (is_string($name) && method_exists(static::class, $name)) {
            return forward_static_call(static::class.'::'.$name);
        }

        return new static($name, $value, $index);
    }

    public static function toArray(): array
    {
        return array_combine(static::getValues(), static::getIndices());
    }

    /**
     * @return \Spatie\Enum\Enumerable[]
     */
    public static function getAll(): array
    {
        return array_map(static function (int $index): Enumerable {
            return static::make($index);
        }, static::getIndices());
    }

    public static function isValidIndex(int $index): bool
    {
        return in_array($index, static::getIndices(), true);
    }

    public static function isValidName(string $value): bool
    {
        return in_array(strtoupper($value), static::getNames(), true);
    }

    public static function isValidValue(string $value): bool
    {
        return in_array($value, static::getValues(), true);
    }

    protected static function resolve(): array
    {
        $values = [];

        $class = static::class;

        if (isset(self::$cache[$class])) {
            return self::$cache[$class];
        }

        self::$cache[$class] = [];

        $reflection = new ReflectionClass(static::class);

        foreach (static::resolveFromDocBlocks($reflection) as $value) {
            $values[] = $value;
        }

        foreach (static::resolveFromStaticMethods($reflection) as $value) {
            $values[] = $value;
        }

        foreach ($values as $index => $value) {
            $name = strtoupper($value);

            self::$cache[$class][$name] = [
                'name' => $name,
                'index' => static::getMappedIndex($name) ?? $index,
                'value' => static::getMappedValue($name) ?? $value,
            ];
        }

        foreach (array_keys(self::$cache[$class]) as $name) {
            self::$cache[$class][$name]['value'] = static::make($name)->getValue();
            self::$cache[$class][$name]['index'] = static::make($name)->getIndex();
        }

        $duplicatedValues = array_filter(array_count_values(static::getValues()), static function (int $count): bool {
            return $count > 1;
        });

        if (! empty($duplicatedValues)) {
            self::clearCache();
            throw new DuplicatedValueException(array_keys($duplicatedValues), static::class);
        }

        $duplicatedIndices = array_filter(array_count_values(static::getIndices()), static function (int $count): bool {
            return $count > 1;
        });

        if (! empty($duplicatedIndices)) {
            self::clearCache();
            throw new DuplicatedIndexException(array_keys($duplicatedIndices), static::class);
        }

        return self::$cache[$class];
    }

    protected static function resolveFromDocBlocks(ReflectionClass $reflection): array
    {
        $values = [];

        $docComment = $reflection->getDocComment();

        if (! $docComment) {
            return $values;
        }

        preg_match_all('/\@method static self ([\w]+)\(\)/', $docComment, $matches);

        foreach ($matches[1] ?? [] as $value) {
            $values[] = $value;
        }

        return $values;
    }

    protected static function resolveFromStaticMethods(ReflectionClass $reflection): array
    {
        $selfReflection = new ReflectionClass(self::class);
        $selfMethods = array_map(static function (ReflectionMethod $method): string {
            return $method->getName();
        }, $selfReflection->getMethods(ReflectionMethod::IS_STATIC | ReflectionMethod::IS_PUBLIC));

        $values = [];
        foreach ($reflection->getMethods(ReflectionMethod::IS_STATIC | ReflectionMethod::IS_PUBLIC) as $method) {
            if (
                $method->getDeclaringClass()->getName() === self::class
                || ! ($method->isPublic() && $method->isStatic())
                || in_array($method->getName(), $selfMethods)
            ) {
                continue;
            }

            $values[] = $method->getName();
        }

        return $values;
    }

    protected function resolveByStaticCall(): array
    {
        if (strpos(static::class, 'class@anonymous') !== 0) {
            throw new InvalidValueException(null, static::class);
        }

        $backtrace = debug_backtrace();

        $name = $backtrace[2]['function'];

        if (! static::isValidName($name)) {
            throw new InvalidValueException($name, static::class);
        }

        return static::resolve()[strtoupper($name)];
    }

    protected static function resolveByIndex(int $index): array
    {
        $name = array_combine(static::getIndices(), static::getNames())[$index];

        return static::resolveByName($name);
    }

    protected static function resolveByString(string $string): array
    {
        if (static::isValidValue($string)) {
            return static::resolveByValue($string);
        }

        if (static::isValidName($string)) {
            return static::resolveByName($string);
        }

        throw new InvalidValueException($string, static::class);
    }

    protected static function resolveByValue(string $value): array
    {
        $name = array_combine(static::getValues(), static::getNames())[$value];

        return static::resolveByName($name);
    }

    protected static function resolveByName(string $name): array
    {
        $name = strtoupper($name);

        ['value' => $value, 'index' => $index] = static::resolve()[$name];

        return [$name, $index, $value];
    }

    protected static function startsWith(string $haystack, string $needle): bool
    {
        return strlen($haystack) > 2 && strpos($haystack, $needle) === 0;
    }

    protected static function clearCache(): void
    {
        unset(self::$cache[static::class]);
    }

    protected static function getMappedIndex(string $name): ?int
    {
        if (! defined(static::class.'::MAP_INDEX')) {
            return null;
        }

        $map = [];

        foreach (constant(static::class.'::MAP_INDEX') as $key => $index) {
            $map[strtoupper($key)] = $index;
        }

        return $map[$name] ?? null;
    }

    protected static function getMappedValue(string $name): ?string
    {
        if (! defined(static::class.'::MAP_VALUE')) {
            return null;
        }

        $map = [];

        foreach (constant(static::class.'::MAP_VALUE') as $key => $index) {
            $map[strtoupper($key)] = $index;
        }

        return $map[$name] ?? null;
    }
}


1			<?php
2
3			namespace Spatie\Enum;
4
5			use ArgumentCountError;
6			use BadMethodCallException;
7			use JsonSerializable;
8			use ReflectionClass;
9			use ReflectionMethod;
10			use Spatie\Enum\Exceptions\DuplicatedIndexException;
11			use Spatie\Enum\Exceptions\DuplicatedValueException;
12			use Spatie\Enum\Exceptions\InvalidIndexException;
13			use Spatie\Enum\Exceptions\InvalidNameException;
14			use Spatie\Enum\Exceptions\InvalidValueException;
15			use TypeError;
16
17			abstract class Enum implements Enumerable, JsonSerializable
18			{
19			/** @var array[] */
20			protected static $cache = [];
21
22			/** @var int */
23			protected $index;
24
25			/** @var string */
26			protected $value;
27
28			/** @var string */
29			protected $name;
30
31			/**
32			* This construct is not part of the public API and COULD change in a minor release.
33			* You SHOULD NOT use it by your own - instead you SHOULD use the make() method.
34			*
35			* @internal
36			* @see \Spatie\Enum\Enum::make()
37			*
38			* @param string\|null $name
39			* @param string\|null $value
40			* @param int\|null $index
41			*/
42			public function __construct(?string $name = null, ?string $value = null, ?int $index = null)
43			{
44			if (is_null($name) && is_null($value) && is_null($index)) {
45			['name' => $name, 'value' => $value, 'index' => $index] = $this->resolveByStaticCall();
46			}
47
48			if (is_null($name) \|\| ! static::isValidName($name)) {
49			throw new InvalidNameException($name, static::class);
50			}
51
52			if (is_null($value) \|\| ! static::isValidValue($value)) {
53			throw new InvalidValueException($value, static::class);
54			}
55
56			if (is_null($index) \|\| ! static::isValidIndex($index)) {
57			throw new InvalidIndexException($index, static::class);
58			}
59
60			$this->name = $name;
61			$this->value = $value;
62			$this->index = $index;
63			}
64
65			public function __call(string $name, array $arguments)
66			{
67			if (static::startsWith($name, 'is')) {
68			return $this->isEqual(substr($name, 2));
69			}
70
71			if (static::isValidName($name)) {
72			return static::make($name);
73			}
74
75			throw new BadMethodCallException('Call to undefined method '.static::class.'->'.$name.'()');
76			}
77
78			/**
79			* @param string $name
80			* @param mixed[] $arguments
81			*
82			* @return \Spatie\Enum\Enumerable\|bool
83			*/
84			public static function __callStatic(string $name, array $arguments)
85			{
86			if (static::startsWith($name, 'is')) {
87			if (! isset($arguments[0])) {
88			throw new ArgumentCountError('Calling '.static::class.'::'.$name.'() in static context requires one argument');
89			}
90
91			try {
92			return static::make($arguments[0])->$name();
93			} catch (InvalidValueException $error) {
94			return false;
95			} catch (InvalidIndexException $error) {
96			return false;
97			}
98			}
99
100			if (static::isValidName($name) \|\| static::isValidValue($name)) {
101			return static::make($name);
102			}
103
104			throw new BadMethodCallException('Call to undefined method '.static::class.'::'.$name.'()');
105			}
106
107			public function __toString(): string
108			{
109			return $this->getValue();
110			}
111
112			public function getIndex(): int
113			{
114			return $this->index;
115			}
116
117			public static function getIndices(): array
118			{
119			return array_column(static::resolve(), 'index');
120			}
121
122			public function getValue(): string
123			{
124			return $this->value;
125			}
126
127			public static function getValues(): array
128			{
129			return array_column(static::resolve(), 'value');
130			}
131
132			public function getName(): string
133			{
134			return $this->name;
135			}
136
137			public static function getNames(): array
138			{
139			return array_keys(static::resolve());
140			}
141
142			public function isAny(array $values): bool
143			{
144			foreach ($values as $value) {
145			if ($this->isEqual($value)) {
146			return true;
147			}
148			}
149
150			return false;
151			}
152
153			public function isEqual($value): bool
154			{
155			if (is_int($value) \|\| is_string($value)) {
156			try {
157			$value = static::make($value);
158			} catch (InvalidValueException $error) {
159			return false;
160			} catch (InvalidIndexException $error) {
161			return false;
162			}
163			}
164
165			if ($value instanceof $this) {
166			return $value->getValue() === $this->getValue();
167			}
168
169			return false;
170			}
171
172			public function jsonSerialize(): string
173			{
174			return $this->getValue();
175			}
176
177			/**
178			* @param int\|string $value
179			*
180			* @return static
181			*/
182			public static function make($value): Enumerable
183			{
184			if (! is_int($value) && ! is_string($value)) {
			0 ignored issues – show introduced 2020-05-27 13:31 UTC by Report Bug Copy Issue Report The condition `is_string($value)` is always `true`. Loading history...
185			throw new TypeError(static::class.'::make() expects string\|int as argument but '.gettype($value).' given');
186			}
187
188			$name = null;
189			$index = null;
190
191			if (is_int($value)) {
192			if (! static::isValidIndex($value)) {
193			throw new InvalidIndexException($value, static::class);
194			}
195
196			[$name, $index, $value] = static::resolveByIndex($value);
197			} elseif (is_string($value)) {
			0 ignored issues – show introduced 2020-05-27 13:31 UTC by Report Bug Copy Issue Report The condition `is_string($value)` is always `true`. Loading history...
198			[$name, $index, $value] = static::resolveByString($value);
199			}
200
201			if (is_string($name) && method_exists(static::class, $name)) {
202			return forward_static_call(static::class.'::'.$name);
203			}
204
205			return new static($name, $value, $index);
206			}
207
208			public static function toArray(): array
209			{
210			return array_combine(static::getValues(), static::getIndices());
211			}
212
213			/**
214			* @return \Spatie\Enum\Enumerable[]
215			*/
216			public static function getAll(): array
217			{
218			return array_map(static function (int $index): Enumerable {
219			return static::make($index);
220			}, static::getIndices());
221			}
222
223			public static function isValidIndex(int $index): bool
224			{
225			return in_array($index, static::getIndices(), true);
226			}
227
228			public static function isValidName(string $value): bool
229			{
230			return in_array(strtoupper($value), static::getNames(), true);
231			}
232
233			public static function isValidValue(string $value): bool
234			{
235			return in_array($value, static::getValues(), true);
236			}
237
238			protected static function resolve(): array
239			{
240			$values = [];
241
242			$class = static::class;
243
244			if (isset(self::$cache[$class])) {
245			return self::$cache[$class];
246			}
247
248			self::$cache[$class] = [];
249
250			$reflection = new ReflectionClass(static::class);
251
252			foreach (static::resolveFromDocBlocks($reflection) as $value) {
253			$values[] = $value;
254			}
255
256			foreach (static::resolveFromStaticMethods($reflection) as $value) {
257			$values[] = $value;
258			}
259
260			foreach ($values as $index => $value) {
261			$name = strtoupper($value);
262
263			self::$cache[$class][$name] = [
264			'name' => $name,
265			'index' => static::getMappedIndex($name) ?? $index,
266			'value' => static::getMappedValue($name) ?? $value,
267			];
268			}
269
270			foreach (array_keys(self::$cache[$class]) as $name) {
271			self::$cache[$class][$name]['value'] = static::make($name)->getValue();
272			self::$cache[$class][$name]['index'] = static::make($name)->getIndex();
273			}
274
275			$duplicatedValues = array_filter(array_count_values(static::getValues()), static function (int $count): bool {
276			return $count > 1;
277			});
278
279			if (! empty($duplicatedValues)) {
280			self::clearCache();
281			throw new DuplicatedValueException(array_keys($duplicatedValues), static::class);
282			}
283
284			$duplicatedIndices = array_filter(array_count_values(static::getIndices()), static function (int $count): bool {
285			return $count > 1;
286			});
287
288			if (! empty($duplicatedIndices)) {
289			self::clearCache();
290			throw new DuplicatedIndexException(array_keys($duplicatedIndices), static::class);
291			}
292
293			return self::$cache[$class];
294			}
295
296			protected static function resolveFromDocBlocks(ReflectionClass $reflection): array
297			{
298			$values = [];
299
300			$docComment = $reflection->getDocComment();
301
302			if (! $docComment) {
303			return $values;
304			}
305
306			preg_match_all('/\@method static self ([\w]+)\(\)/', $docComment, $matches);
307
308			foreach ($matches[1] ?? [] as $value) {
309			$values[] = $value;
310			}
311
312			return $values;
313			}
314
315			protected static function resolveFromStaticMethods(ReflectionClass $reflection): array
316			{
317			$selfReflection = new ReflectionClass(self::class);
318			$selfMethods = array_map(static function (ReflectionMethod $method): string {
319			return $method->getName();
320			}, $selfReflection->getMethods(ReflectionMethod::IS_STATIC \| ReflectionMethod::IS_PUBLIC));
321
322			$values = [];
323			foreach ($reflection->getMethods(ReflectionMethod::IS_STATIC \| ReflectionMethod::IS_PUBLIC) as $method) {
324			if (
325			$method->getDeclaringClass()->getName() === self::class
326			\|\| ! ($method->isPublic() && $method->isStatic())
327			\|\| in_array($method->getName(), $selfMethods)
328			) {
329			continue;
330			}
331
332			$values[] = $method->getName();
333			}
334
335			return $values;
336			}
337
338			protected function resolveByStaticCall(): array
339			{
340			if (strpos(static::class, 'class@anonymous') !== 0) {
341			throw new InvalidValueException(null, static::class);
342			}
343
344			$backtrace = debug_backtrace();
345
346			$name = $backtrace[2]['function'];
347
348			if (! static::isValidName($name)) {
349			throw new InvalidValueException($name, static::class);
350			}
351
352			return static::resolve()[strtoupper($name)];
353			}
354
355			protected static function resolveByIndex(int $index): array
356			{
357			$name = array_combine(static::getIndices(), static::getNames())[$index];
358
359			return static::resolveByName($name);
360			}
361
362			protected static function resolveByString(string $string): array
363			{
364			if (static::isValidValue($string)) {
365			return static::resolveByValue($string);
366			}
367
368			if (static::isValidName($string)) {
369			return static::resolveByName($string);
370			}
371
372			throw new InvalidValueException($string, static::class);
373			}
374
375			protected static function resolveByValue(string $value): array
376			{
377			$name = array_combine(static::getValues(), static::getNames())[$value];
378
379			return static::resolveByName($name);
380			}
381
382			protected static function resolveByName(string $name): array
383			{
384			$name = strtoupper($name);
385
386			['value' => $value, 'index' => $index] = static::resolve()[$name];
387
388			return [$name, $index, $value];
389			}
390
391			protected static function startsWith(string $haystack, string $needle): bool
392			{
393			return strlen($haystack) > 2 && strpos($haystack, $needle) === 0;
394			}
395
396			protected static function clearCache(): void
397			{
398			unset(self::$cache[static::class]);
399			}
400
401			protected static function getMappedIndex(string $name): ?int
402			{
403			if (! defined(static::class.'::MAP_INDEX')) {
404			return null;
405			}
406
407			$map = [];
408
409			foreach (constant(static::class.'::MAP_INDEX') as $key => $index) {
410			$map[strtoupper($key)] = $index;
411			}
412
413			return $map[$name] ?? null;
414			}
415
416			protected static function getMappedValue(string $name): ?string
417			{
418			if (! defined(static::class.'::MAP_VALUE')) {
419			return null;
420			}
421
422			$map = [];
423
424			foreach (constant(static::class.'::MAP_VALUE') as $key => $index) {
425			$map[strtoupper($key)] = $index;
426			}
427
428			return $map[$name] ?? null;
429			}
430			}
431

spatie / enum

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