Dependencies::extract() - Code Metrics - Inspection of "Merge branch 'develop'" - Innmind/Compose - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( a5c4b8...28cb8b )

by Baptiste

created 2018-07-28 16:13 UTC

Dependencies::extract() A

↳ Parent: Dependencies

Complexity

Conditions	2
Paths	2

Size

Total Lines	11
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	2

Importance

Changes

Metric	Value
cc	2
eloc	6
nc	2
nop	3
dl	0
loc	11
ccs	5
cts	5
cp	1
crap	2
rs	10
c	0
b	0
f	0

<?php
declare(strict_types = 1);

namespace Innmind\Compose;

use Innmind\Compose\{
    Definition\Dependency,
    Definition\Name,
    Definition\Service,
    Definition\Service\Argument,
    Exception\ReferenceNotFound,
    Exception\NameNotNamespaced,
    Exception\CircularDependency,
    Exception\LogicException,
    Compilation\Dependencies as CompiledDependencies
};
use Innmind\Immutable\{
    Sequence,
    MapInterface,
    Map,
    StreamInterface
};

final class Dependencies
{
    private $dependencies;

    public function __construct(Dependency ...$dependencies)
    {
        $this->dependencies = Sequence::of(...$dependencies)->reduce(
            new Map('string', Dependency::class),
            static function(Map $dependencies, Dependency $dependency): Map {
                return $dependencies->put(
                    (string) $dependency->name(),
                    $dependency
                );
            }
        );
        $this->assertNoCircularDependency();
    }

    public function feed(Name $name, Services $services): self
    {
        $self = clone $this;
        $self->dependencies = $self->dependencies->put(
            (string) $name,
            $self->dependencies->get((string) $name)->bind($services)
        );

        return $self;
    }

    public function bind(Services $services): Services
    {
        return $this
            ->dependencies
            ->values()
            ->sort(static function(Dependency $a, Dependency $b) use ($services): bool {
                if ($a->need($services)) {
                    return true;
                }

                return $a->dependsOn($b);
            })
            ->reduce(
                $services,
                static function(Services $services, Dependency $dependency): Services {
                    return $services->feed($dependency->name());
                }
            );
    }

    public function lazy(Name $name): Lazy
    {
        try {
            return $this
                ->get($name)
                ->lazy($name->withoutRoot());
        } catch (ReferenceNotFound $e) {
            throw new ReferenceNotFound((string) $name, 0, $e);
        }
    }

    public function build(Name $name): object
    {
        return $this->lazy($name)->load();
    }

    public function decorate(
        Name $decorator,
        Name $decorated,
        Name $newName = null
    ): Service {
        try {
            return $this
                ->get($decorator)
                ->decorate($decorator->withoutRoot(), $decorated, $newName);
        } catch (ReferenceNotFound $e) {
            throw new ReferenceNotFound((string) $decorator, 0, $e);
        }
    }

    /**
     * @param StreamInterface<mixed> $arguments
     *
     * @return StreamInterface<mixed>
     */
    public function extract(
        Name $name,
        StreamInterface $arguments,
        Argument $argument
    ): StreamInterface {
        try {
            return $this
                ->get($name)
                ->extract($name->withoutRoot(), $arguments, $argument);
        } catch (ReferenceNotFound $e) {
            throw new ReferenceNotFound((string) $name, 0, $e);
        }
    }

    private function get(Name $name): Dependency
    {
        try {
            $root = $name->root();
        } catch (NameNotNamespaced $e) {
            throw new ReferenceNotFound((string) $name);
        }

        if (!$this->dependencies->contains((string) $root)) {
            throw new ReferenceNotFound((string) $name);
        }

        return $this->dependencies->get((string) $root);
    }

    /**
     * Return the list of exposed services per dependency
     *
     * @return MapInterface<Name, MapInterface<Name, Constructor>>
     */
    public function exposed(): MapInterface
    {
        return $this->dependencies->reduce(
            new Map(Name::class, MapInterface::class),
            static function(Map $exposed, string $name, Dependency $dependency): Map {
                return $exposed->put(
                    $dependency->name(),
                    $dependency->exposed()
                );
            }
        );
    }

    public function compile(): CompiledDependencies
    {
        return new CompiledDependencies(
            ...$this->dependencies->values()
        );
    }

    private function assertNoCircularDependency(): void
    {
        $this->dependencies->foreach(function(string $name, Dependency $dependency): void {
            $this
                ->dependencies
                ->remove($name)
                ->foreach(static function(string $name, Dependency $other) use ($dependency): void {
                    if (!$dependency->dependsOn($other)) {
                        return;
                    }

                    if (!$other->dependsOn($dependency)) {
                        return;
                    }

                    throw new CircularDependency(sprintf(
                        '%s -> %s -> %s',
                        $dependency->name(),
                        $other->name(),
                        $dependency->name()
                    ));
                });
        });
    }
}


1		<?php
2		declare(strict_types = 1);
3
4		namespace Innmind\Compose;
5
6		use Innmind\Compose\{
7		Definition\Dependency,
8		Definition\Name,
9		Definition\Service,
10		Definition\Service\Argument,
11		Exception\ReferenceNotFound,
12		Exception\NameNotNamespaced,
13		Exception\CircularDependency,
14		Exception\LogicException,
15		Compilation\Dependencies as CompiledDependencies
16		};
17		use Innmind\Immutable\{
18		Sequence,
19		MapInterface,
20		Map,
21		StreamInterface
22		};
23
24		final class Dependencies
25		{
26		private $dependencies;
27
28	212	public function __construct(Dependency ...$dependencies)
29		{
30	212	$this->dependencies = Sequence::of(...$dependencies)->reduce(
31	212	new Map('string', Dependency::class),
32	212	static function(Map $dependencies, Dependency $dependency): Map {
33	36	return $dependencies->put(
34	36	(string) $dependency->name(),
35	36	$dependency
36		);
37	212	}
38		);
39	212	$this->assertNoCircularDependency();
40	212	}
41
42	7	public function feed(Name $name, Services $services): self
43		{
44	7	$self = clone $this;
45	7	$self->dependencies = $self->dependencies->put(
46	7	(string) $name,
47	7	$self->dependencies->get((string) $name)->bind($services)
48		);
49
50	7	return $self;
51		}
52
53	37	public function bind(Services $services): Services
54		{
55		return $this
56	37	->dependencies
57	37	->values()
58	37	->sort(static function(Dependency $a, Dependency $b) use ($services): bool {
59	1	if ($a->need($services)) {
60		return true;
61		}
62
63	1	return $a->dependsOn($b);
64	37	})
65	37	->reduce(
66	37	$services,
67	37	static function(Services $services, Dependency $dependency): Services {
68	5	return $services->feed($dependency->name());
69	37	}
70		);
71		}
72
73	31	public function lazy(Name $name): Lazy
74		{
75		try {
76		return $this
77	31	->get($name)
78	15	->lazy($name->withoutRoot());
79	24	} catch (ReferenceNotFound $e) {
80	24	throw new ReferenceNotFound((string) $name, 0, $e);
81		}
82		}
83
84	15	public function build(Name $name): object
85		{
86	15	return $this->lazy($name)->load();
87		}
88
89	13	public function decorate(
90		Name $decorator,
91		Name $decorated,
92		Name $newName = null
93		): Service {
94		try {
95		return $this
96	13	->get($decorator)
97	11	->decorate($decorator->withoutRoot(), $decorated, $newName);
98	3	} catch (ReferenceNotFound $e) {
99	3	throw new ReferenceNotFound((string) $decorator, 0, $e);
100		}
101		}
102
103		/**
104		* @param StreamInterface<mixed> $arguments
105		*
106		* @return StreamInterface<mixed>
107		*/
108	7	public function extract(
109		Name $name,
110		StreamInterface $arguments,
111		Argument $argument
112		): StreamInterface {
113		try {
114		return $this
115	7	->get($name)
116	5	->extract($name->withoutRoot(), $arguments, $argument);
117	4	} catch (ReferenceNotFound $e) {
118	4	throw new ReferenceNotFound((string) $name, 0, $e);
119		}
120		}
121
122	47	private function get(Name $name): Dependency
123		{
124		try {
125	47	$root = $name->root();
126	20	} catch (NameNotNamespaced $e) {
127	20	throw new ReferenceNotFound((string) $name);
128		}
129
130	33	if (!$this->dependencies->contains((string) $root)) {
131	7	throw new ReferenceNotFound((string) $name);
132		}
133
134	29	return $this->dependencies->get((string) $root);
135		}
136
137		/**
138		* Return the list of exposed services per dependency
139		*
140		* @return MapInterface<Name, MapInterface<Name, Constructor>>
141		*/
142	2	public function exposed(): MapInterface
143		{
144	2	return $this->dependencies->reduce(
145	2	new Map(Name::class, MapInterface::class),
146	2	static function(Map $exposed, string $name, Dependency $dependency): Map {
147	2	return $exposed->put(
148	2	$dependency->name(),
149	2	$dependency->exposed()
150		);
151	2	}
152		);
153		}
154
155	8	public function compile(): CompiledDependencies
156		{
157	8	return new CompiledDependencies(
158	8	...$this->dependencies->values()
159		);
160		}
161
162		private function assertNoCircularDependency(): void
163		{
164	212	$this->dependencies->foreach(function(string $name, Dependency $dependency): void {
165		$this
166	36	->dependencies
167	36	->remove($name)
168	36	->foreach(static function(string $name, Dependency $other) use ($dependency): void {
169	4	if (!$dependency->dependsOn($other)) {
170	4	return;
171		}
172
173	2	if (!$other->dependsOn($dependency)) {
174	1	return;
175		}
176
177	1	throw new CircularDependency(sprintf(
178	1	'%s -> %s -> %s',
179	1	$dependency->name(),
180	1	$other->name(),
181	1	$dependency->name()
182		));
183	36	});
184	212	});
185	212	}
186		}
187

Innmind / Compose

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Dependencies::extract() A

Complexity

Size

Duplication

Code Coverage

Importance

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