Type::getInheritanceSequence() - Code Metrics - Inspection of "Add basic interpreter implementation" - railt/sdl - Measure and Improve Code Quality continuously with Scrutinizer

Test Failed

Push — master ( b7ab7b...94ee03 )

by Kirill

created 2018-10-02 21:32 UTC

Type::getInheritanceSequence() A

↳ Parent: Type

Complexity

Conditions	2
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	2.032

Importance

Changes

Metric	Value
cc	2
nc	2
nop	1
dl	0
loc	8
ccs	4
cts	5
cp	0.8
crap	2.032
rs	10
c	0
b	0
f	0

<?php
/**
 * This file is part of Railt package.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
declare(strict_types=1);

namespace Railt\SDL\IR;

use Railt\SDL\IR\Type\Name;
use Railt\SDL\IR\Type\TypeConstructors;
use Railt\SDL\IR\Type\InternalTypes;
use Railt\SDL\IR\Type\TypeInterface;
use Railt\SDL\IR\Type\TypeNameInterface;

/**
 * Class Type
 */
class Type implements TypeInterface
{
    use InternalTypes;
    use TypeConstructors;

    /**
     * @var bool
     */
    private static $booted = false;

    /**
     * @var TypeNameInterface
     */
    protected $type;

    /**
     * @var TypeInterface
     */
    protected $of;

    /**
     * @var bool|null
     */
    private $inputable;

    /**
     * @var bool|null
     */
    private $returnable;

    /**
     * @var string
     */
    private $hash;

    /**
     * Type constructor.
     * @param string|iterable|TypeNameInterface $name
     * @param TypeInterface|null $of
     */
    protected function __construct($name, TypeInterface $of = null)
    {
        $this->type = Name::new($name);
        $this->of = $this->resolveTypeOf($this->type, $of);
    }

    /**
     * @param TypeNameInterface $type
     * @param null|TypeInterface $of
     * @return TypeInterface|static
     */
    private function resolveTypeOf(TypeNameInterface $type, ?TypeInterface $of): TypeInterface
    {
        if ($of === null) {
            $any = Name::new(self::ROOT_TYPE);

            return $type->is($any) ? $this : self::new($any);
        }

        return $of;
    }

    /**
     * @return void
     */
    private static function bootIfNotBooted(): void
    {
        if (self::$booted === false) {
            self::$booted = true;

            self::bootInternalTypes();
        }
    }

    /**
     * @param string|iterable|TypeNameInterface $name
     * @param TypeInterface|null $of
     * @return TypeInterface|static
     */
    public static function new($name, TypeInterface $of = null): TypeInterface
    {
        self::bootIfNotBooted();

        $fqn = Name::new($name)->getFullyQualifiedName();

        return self::getInternalType($fqn, $of, function () use ($name, $of): TypeInterface {
            return new static($name, $of);
        });
    }

    /**
     * @param TypeInterface $of
     * @return TypeInterface|static
     */
    public function of(TypeInterface $of): TypeInterface
    {
        \assert(! $this->isInternal(), 'Can not change inheritance logic of internal types');

        return static::new($this->type, $of);
    }

    /**
     * {@inheritdoc}
     */
    public function getParent(): TypeInterface
    {
        return $this->of;
    }

    /**
     * {@inheritdoc}
     */
    public function typeOf(TypeInterface $type): bool
    {
        foreach ($this->getInheritanceSequence($this) as $parent) {
            if ($parent->is($type)) {
                return true;
            }
        }

        return false;
    }

    /**
     * @param TypeInterface $type
     * @return \Generator|TypeInterface[]
     */
    private function getInheritanceSequence(TypeInterface $type): \Generator
    {
        yield $type;

        if (! $type->getName()->is(static::ROOT_TYPE)) {
            yield from $this->getInheritanceSequence($type->getParent());
        }
    }

    /**
     * {@inheritdoc}
     */
    public function isInputable(): bool
    {
        if ($this->inputable === null) {
            if ($this->isBuiltin() && ! \in_array($this->fqn(), static::ALLOWS_TO_INPUT, true)) {
                return $this->inputable = false;
            }

            if ($this->is(self::any())) {

                return $this->inputable = true;
            }

            $this->inputable = $this->of->isInputable();
        }

        return $this->inputable;
    }

    /**
     * {@inheritdoc}
     */
    public function isBuiltin(): bool
    {
        $fqn = $this->fqn();

        return \in_array($fqn, static::INDEPENDENT_TYPES, true)
             || \in_array($fqn, static::WRAPPING_TYPES, true)
             || \in_array($fqn, static::DEPENDENT_TYPES, true)
        ;
    }

    /**
     * @return string
     */
    private function fqn(): string
    {
        return $this->type->getFullyQualifiedName();
    }

    /**
     * {@inheritdoc}
     */
    public function is(TypeInterface $is): bool
    {
        return $is->getHash() === $this->getHash();
    }

    /**
     * {@inheritdoc}
     */
    public function getName(): TypeNameInterface
    {
        return $this->type;
    }

    /**
     * {@inheritdoc}
     */
    public function isReturnable(): bool
    {
        if ($this->returnable === null) {
            if ($this->isBuiltin() && ! \in_array($this->fqn(), static::ALLOWS_TO_OUTPUT, true)) {
                return $this->returnable = false;
            }

            if ($this->is(self::any())) {

                return $this->returnable = true;
            }

            $this->returnable = $this->of->isReturnable();
        }

        return $this->returnable;
    }

    /**
     * @return array
     */
    public function __debugInfo(): array
    {
        return [
            'type' => $this->fqn(),
            'of'   => $this->of,
        ];
    }

    /**
     * @return string
     */
    public function __toString(): string
    {
        if ($this->isInternal()) {
            return $this->fqn();
        }

        return \sprintf('%s<%s>', $this->fqn(), $this->of);
    }

    /**
     * @return bool
     */
    private function isInternal(): bool
    {
        return $this->isBuiltin() || \in_array($this->fqn(), self::RUNTIME_TYPES, true);
    }

    /**
     * @return string
     */
    public function getHash(): string
    {
        if ($this->hash === null) {
            $this->hash = $this->fqn() === self::ROOT_TYPE
                ? \sha1($this->fqn())
                : \sha1($this->fqn() . ':' . $this->of->getHash());
        }

        return $this->hash;
    }
}


1		<?php
2		/**
3		* This file is part of Railt package.
4		*
5		* For the full copyright and license information, please view the LICENSE
6		* file that was distributed with this source code.
7		*/
8		declare(strict_types=1);
9
10		namespace Railt\SDL\IR;
11
12		use Railt\SDL\IR\Type\Name;
13		use Railt\SDL\IR\Type\TypeConstructors;
14		use Railt\SDL\IR\Type\InternalTypes;
15		use Railt\SDL\IR\Type\TypeInterface;
16		use Railt\SDL\IR\Type\TypeNameInterface;
17
18		/**
19		* Class Type
20		*/
21		class Type implements TypeInterface
22		{
23		use InternalTypes;
24		use TypeConstructors;
25
26		/**
27		* @var bool
28		*/
29		private static $booted = false;
30
31		/**
32		* @var TypeNameInterface
33		*/
34		protected $type;
35
36		/**
37		* @var TypeInterface
38		*/
39		protected $of;
40
41		/**
42		* @var bool\|null
43		*/
44		private $inputable;
45
46		/**
47		* @var bool\|null
48		*/
49		private $returnable;
50
51		/**
52		* @var string
53		*/
54		private $hash;
55
56		/**
57		* Type constructor.
58		* @param string\|iterable\|TypeNameInterface $name
59		* @param TypeInterface\|null $of
60		*/
61		protected function __construct($name, TypeInterface $of = null)
62		{
63		$this->type = Name::new($name);
64		$this->of = $this->resolveTypeOf($this->type, $of);
65		}
66
67		/**
68		* @param TypeNameInterface $type
69		* @param null\|TypeInterface $of
70		* @return TypeInterface\|static
71		*/
72		private function resolveTypeOf(TypeNameInterface $type, ?TypeInterface $of): TypeInterface
73		{
74		if ($of === null) {
75		$any = Name::new(self::ROOT_TYPE);
76
77		return $type->is($any) ? $this : self::new($any);
78		}
79
80		return $of;
81		}
82
83		/**
84		* @return void
85		*/
86	51	private static function bootIfNotBooted(): void
87		{
88	51	if (self::$booted === false) {
89		self::$booted = true;
90
91		self::bootInternalTypes();
92		}
93	51	}
94
95		/**
96		* @param string\|iterable\|TypeNameInterface $name
97		* @param TypeInterface\|null $of
98		* @return TypeInterface\|static
99		*/
100	51	public static function new($name, TypeInterface $of = null): TypeInterface
101		{
102	51	self::bootIfNotBooted();
103
104	51	$fqn = Name::new($name)->getFullyQualifiedName();
105
106	51	return self::getInternalType($fqn, $of, function () use ($name, $of): TypeInterface {
107		return new static($name, $of);
108	51	});
109		}
110
111		/**
112		* @param TypeInterface $of
113		* @return TypeInterface\|static
114		*/
115		public function of(TypeInterface $of): TypeInterface
116		{
117		\assert(! $this->isInternal(), 'Can not change inheritance logic of internal types');
118
119		return static::new($this->type, $of);
120		}
121
122		/**
123		* {@inheritdoc}
124		*/
125	50	public function getParent(): TypeInterface
126		{
127	50	return $this->of;
128		}
129
130		/**
131		* {@inheritdoc}
132		*/
133	51	public function typeOf(TypeInterface $type): bool
134		{
135	51	foreach ($this->getInheritanceSequence($this) as $parent) {
136	51	if ($parent->is($type)) {
137	51	return true;
138		}
139		}
140
141		return false;
142		}
143
144		/**
145		* @param TypeInterface $type
146		* @return \Generator\|TypeInterface[]
147		*/
148	51	private function getInheritanceSequence(TypeInterface $type): \Generator
149		{
150	51	yield $type;
151
152	50	if (! $type->getName()->is(static::ROOT_TYPE)) {
153	50	yield from $this->getInheritanceSequence($type->getParent());
154		}
155		}
156
157		/**
158		* {@inheritdoc}
159		*/
160		public function isInputable(): bool
161		{
162		if ($this->inputable === null) {
163		if ($this->isBuiltin() && ! \in_array($this->fqn(), static::ALLOWS_TO_INPUT, true)) {
164		return $this->inputable = false;
165		}
166
167		if ($this->is(self::any())) {
		0 ignored issues – show Bug introduced 2018-10-02 21:35 UTC by Report Bug Copy Issue Report It seems like `self::any()` targeting `Railt\SDL\IR\Type\TypeCo...TypeConstructors::any()` can also be of type `object<Railt\SDL\IR\Type...uiltinTypeConstructors>`; however, `Railt\SDL\IR\Type::is()` does only seem to accept `object<Railt\SDL\IR\Type\TypeInterface>`, maybe add an additional type check? This check looks at variables that are passed out again to other methods. If the outgoing method call has stricter type requirements than the method itself, an issue is raised. An additional type check may prevent trouble. Loading history...
168		return $this->inputable = true;
169		}
170
171		$this->inputable = $this->of->isInputable();
172		}
173
174		return $this->inputable;
175		}
176
177		/**
178		* {@inheritdoc}
179		*/
180	51	public function isBuiltin(): bool
181		{
182	51	$fqn = $this->fqn();
183
184	51	return \in_array($fqn, static::INDEPENDENT_TYPES, true)
185	21	\|\| \in_array($fqn, static::WRAPPING_TYPES, true)
186	51	\|\| \in_array($fqn, static::DEPENDENT_TYPES, true)
187		;
188		}
189
190		/**
191		* @return string
192		*/
193	68	private function fqn(): string
194		{
195	68	return $this->type->getFullyQualifiedName();
196		}
197
198		/**
199		* {@inheritdoc}
200		*/
201	51	public function is(TypeInterface $is): bool
202		{
203	51	return $is->getHash() === $this->getHash();
204		}
205
206		/**
207		* {@inheritdoc}
208		*/
209	152	public function getName(): TypeNameInterface
210		{
211	152	return $this->type;
212		}
213
214		/**
215		* {@inheritdoc}
216		*/
217		public function isReturnable(): bool
218		{
219		if ($this->returnable === null) {
220		if ($this->isBuiltin() && ! \in_array($this->fqn(), static::ALLOWS_TO_OUTPUT, true)) {
221		return $this->returnable = false;
222		}
223
224		if ($this->is(self::any())) {
		0 ignored issues – show Bug introduced 2018-10-02 21:35 UTC by Report Bug Copy Issue Report It seems like `self::any()` targeting `Railt\SDL\IR\Type\TypeCo...TypeConstructors::any()` can also be of type `object<Railt\SDL\IR\Type...uiltinTypeConstructors>`; however, `Railt\SDL\IR\Type::is()` does only seem to accept `object<Railt\SDL\IR\Type\TypeInterface>`, maybe add an additional type check? This check looks at variables that are passed out again to other methods. If the outgoing method call has stricter type requirements than the method itself, an issue is raised. An additional type check may prevent trouble. Loading history...
225		return $this->returnable = true;
226		}
227
228		$this->returnable = $this->of->isReturnable();
229		}
230
231		return $this->returnable;
232		}
233
234		/**
235		* @return array
236		*/
237		public function __debugInfo(): array
238		{
239		return [
240		'type' => $this->fqn(),
241		'of' => $this->of,
242		];
243		}
244
245		/**
246		* @return string
247		*/
248		public function __toString(): string
249		{
250		if ($this->isInternal()) {
251		return $this->fqn();
252		}
253
254		return \sprintf('%s<%s>', $this->fqn(), $this->of);
255		}
256
257		/**
258		* @return bool
259		*/
260		private function isInternal(): bool
261		{
262		return $this->isBuiltin() \|\| \in_array($this->fqn(), self::RUNTIME_TYPES, true);
263		}
264
265		/**
266		* @return string
267		*/
268	51	public function getHash(): string
269		{
270	51	if ($this->hash === null) {
271	17	$this->hash = $this->fqn() === self::ROOT_TYPE
272		? \sha1($this->fqn())
273	17	: \sha1($this->fqn() . ':' . $this->of->getHash());
274		}
275
276	51	return $this->hash;
277		}
278		}
279

railt / sdl

Push — master ( b7ab7b...94ee03 )

Type::getInheritanceSequence() A

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