ValidationContext::getFragmentSpreads() - Code Metrics - Inspection of "Fix Scrutinizer issues" - digiaonline/graphql-php - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#270)

by Christoffer

created 2018-08-20 22:16 UTC

ValidationContext::getFragmentSpreads() B

↳ Parent: ValidationContext

Complexity

Conditions	7
Paths	2

Size

Total Lines	26
Code Lines	13

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	7
eloc	13
nc	2
nop	1
dl	0
loc	26
rs	8.8333
c	0
b	0
f	0

<?php

namespace Digia\GraphQL\Validation;

use Digia\GraphQL\Error\ValidationException;
use Digia\GraphQL\Language\Node\DocumentNode;
use Digia\GraphQL\Language\Node\FieldNode;
use Digia\GraphQL\Language\Node\FragmentDefinitionNode;
use Digia\GraphQL\Language\Node\FragmentSpreadNode;
use Digia\GraphQL\Language\Node\NodeInterface;
use Digia\GraphQL\Language\Node\OperationDefinitionNode;
use Digia\GraphQL\Language\Node\SelectionSetAwareInterface;
use Digia\GraphQL\Language\Node\SelectionSetNode;
use Digia\GraphQL\Language\Node\VariableDefinitionNode;
use Digia\GraphQL\Language\Node\VariableNode;
use Digia\GraphQL\Language\Visitor\AcceptsVisitorsInterface;
use Digia\GraphQL\Language\Visitor\TypeInfoVisitor;
use Digia\GraphQL\Language\Visitor\Visitor;
use Digia\GraphQL\Schema\Schema;
use Digia\GraphQL\Type\Definition\Argument;
use Digia\GraphQL\Type\Definition\Directive;
use Digia\GraphQL\Type\Definition\Field;
use Digia\GraphQL\Type\Definition\TypeInterface;
use Digia\GraphQL\Util\TypeInfo;

class ValidationContext implements ValidationContextInterface
{
    /**
     * @var Schema
     */
    protected $schema;

    /**
     * @var DocumentNode
     */
    protected $document;

    /**
     * @var TypeInfo
     */
    protected $typeInfo;

    /**
     * @var array|ValidationException[]
     */
    protected $errors = [];

    /**
     * @var array|FragmentDefinitionNode[]
     */
    protected $fragments = [];

    /**
     * @var array
     */
    protected $fragmentSpreads = [];

    /**
     * @var array
     */
    protected $variableUsages = [];

    /**
     * @var array
     */
    protected $recursiveVariableUsages = [];

    /**
     * @var array
     */
    protected $recursivelyReferencedFragment = [];

    /**
     * ValidationContext constructor.
     * @param Schema       $schema
     * @param DocumentNode $document
     * @param TypeInfo     $typeInfo
     */
    public function __construct(Schema $schema, DocumentNode $document, TypeInfo $typeInfo)
    {
        $this->schema   = $schema;
        $this->document = $document;
        $this->typeInfo = $typeInfo;
    }

    /**
     * @inheritdoc
     */
    public function reportError(ValidationException $error): void
    {
        $this->errors[] = $error;
    }

    /**
     * @inheritdoc
     */
    public function getErrors(): array
    {
        return $this->errors;
    }

    /**
     * @return TypeInterface|null
     */
    public function getType(): ?TypeInterface
    {
        return $this->typeInfo->getType();
    }

    /**
     * @inheritdoc
     */
    public function getParentType(): ?TypeInterface
    {
        return $this->typeInfo->getParentType();
    }

    /**
     * @inheritdoc
     */
    public function getInputType(): ?TypeInterface
    {
        return $this->typeInfo->getInputType();
    }

    /**
     * @inheritdoc
     */
    public function getParentInputType(): ?TypeInterface
    {
        return $this->typeInfo->getParentInputType();
    }

    /**
     * @inheritdoc
     */
    public function getFieldDefinition(): ?Field
    {
        return $this->typeInfo->getFieldDefinition();
    }

    /**
     * @inheritdoc
     */
    public function getSchema(): Schema
    {
        return $this->schema;
    }

    /**
     * @inheritdoc
     */
    public function getArgument(): ?Argument
    {
        return $this->typeInfo->getArgument();
    }

    /**
     * @inheritdoc
     */
    public function getDirective(): ?Directive
    {
        return $this->typeInfo->getDirective();
    }

    /**
     * @inheritdoc
     */
    public function getFragment(string $name): ?FragmentDefinitionNode
    {
        if (empty($this->fragments)) {
            $this->fragments = array_reduce($this->document->getDefinitions(), function ($fragments, $definition) {
                if ($definition instanceof FragmentDefinitionNode) {
                    $fragments[$definition->getNameValue()] = $definition;
                }
                return $fragments;
            }, []);
        }

        return $this->fragments[$name] ?? null;
    }

    /**
     * @inheritdoc
     */
    public function getFragmentSpreads(SelectionSetNode $selectionSet): array
    {
        $spreads = $this->fragmentSpreads[(string)$selectionSet] ?? null;

        if (null === $spreads) {
            $spreads = [];

            $setsToVisit = [$selectionSet];

            while (!empty($setsToVisit)) {
                /** @var SelectionSetNode $set */
                $set = array_pop($setsToVisit);

                foreach ($set->getSelections() as $selection) {
                    if ($selection instanceof FragmentSpreadNode) {
                        $spreads[] = $selection;
                    } elseif ($selection instanceof SelectionSetAwareInterface && $selection->hasSelectionSet()) {
                        $setsToVisit[] = $selection->getSelectionSet();
                    }
                }
            }

            $this->fragmentSpreads[(string)$selectionSet] = $spreads;
        }

        return $spreads;
    }

    /**
     * @inheritdoc
     */
    public function getRecursiveVariableUsages(OperationDefinitionNode $operation): array
    {
        $usages = $this->recursiveVariableUsages[(string)$operation] ?? null;

        if (null === $usages) {
            $usages    = $this->getVariableUsages($operation);
            $fragments = $this->getRecursivelyReferencedFragments($operation);

            foreach ($fragments as $fragment) {
                // TODO: Figure out a more performance way to do this.
                /** @noinspection SlowArrayOperationsInLoopInspection */
                $usages = array_merge($usages, $this->getVariableUsages($fragment));
            }

            $this->recursiveVariableUsages[(string)$operation] = $usages;
        }

        return $usages;
    }

    /**
     * @inheritdoc
     */
    public function getVariableUsages($node): array
    {
        $usages = $this->variableUsages[(string)$node] ?? null;

        if (null === $usages) {
            $usages   = [];
            $typeInfo = new TypeInfo($this->schema);
            $visitor  = new TypeInfoVisitor($typeInfo, new Visitor(
                function (NodeInterface $node) use (&$usages, $typeInfo): ?NodeInterface {
                    if ($node instanceof VariableDefinitionNode) {
                        return null;
                    }

                    if ($node instanceof VariableNode) {
                        $usages[] = ['node' => $node, 'type' => $typeInfo->getInputType()];
                    }

                    return $node;
                }
            ));

            $node->acceptVisitor($visitor);

            $this->variableUsages[(string)$node] = $usages;
        }

        return $usages;
    }

    /**
     * @inheritdoc
     */
    public function getRecursivelyReferencedFragments(OperationDefinitionNode $operation): array
    {
        $fragments = $this->recursivelyReferencedFragment[(string)$operation] ?? null;

        if (null === $fragments) {
            $fragments      = [];
            $collectedNames = [];
            $nodesToVisit   = [$operation->getSelectionSet()];

            while (!empty($nodesToVisit)) {
                $node    = array_pop($nodesToVisit);
                $spreads = $this->getFragmentSpreads($node);

                foreach ($spreads as $spread) {
                    $fragmentName = $spread->getNameValue();

                    if (!isset($collectedNames[$fragmentName])) {
                        $collectedNames[$fragmentName] = true;
                        $fragment                      = $this->getFragment($fragmentName);

                        if (null !== $fragment) {
                            $fragments[]    = $fragment;
                            $nodesToVisit[] = $fragment->getSelectionSet();
                        }
                    }
                }
            }

            $this->recursivelyReferencedFragment[(string)$operation] = $fragments;
        }

        return $fragments;
    }
}


1			<?php
2
3			namespace Digia\GraphQL\Validation;
4
5			use Digia\GraphQL\Error\ValidationException;
6			use Digia\GraphQL\Language\Node\DocumentNode;
7			use Digia\GraphQL\Language\Node\FieldNode;
8			use Digia\GraphQL\Language\Node\FragmentDefinitionNode;
9			use Digia\GraphQL\Language\Node\FragmentSpreadNode;
10			use Digia\GraphQL\Language\Node\NodeInterface;
11			use Digia\GraphQL\Language\Node\OperationDefinitionNode;
12			use Digia\GraphQL\Language\Node\SelectionSetAwareInterface;
13			use Digia\GraphQL\Language\Node\SelectionSetNode;
14			use Digia\GraphQL\Language\Node\VariableDefinitionNode;
15			use Digia\GraphQL\Language\Node\VariableNode;
16			use Digia\GraphQL\Language\Visitor\AcceptsVisitorsInterface;
17			use Digia\GraphQL\Language\Visitor\TypeInfoVisitor;
18			use Digia\GraphQL\Language\Visitor\Visitor;
19			use Digia\GraphQL\Schema\Schema;
20			use Digia\GraphQL\Type\Definition\Argument;
21			use Digia\GraphQL\Type\Definition\Directive;
22			use Digia\GraphQL\Type\Definition\Field;
23			use Digia\GraphQL\Type\Definition\TypeInterface;
24			use Digia\GraphQL\Util\TypeInfo;
25
26			class ValidationContext implements ValidationContextInterface
27			{
28			/**
29			* @var Schema
30			*/
31			protected $schema;
32
33			/**
34			* @var DocumentNode
35			*/
36			protected $document;
37
38			/**
39			* @var TypeInfo
40			*/
41			protected $typeInfo;
42
43			/**
44			* @var array\|ValidationException[]
45			*/
46			protected $errors = [];
47
48			/**
49			* @var array\|FragmentDefinitionNode[]
50			*/
51			protected $fragments = [];
52
53			/**
54			* @var array
55			*/
56			protected $fragmentSpreads = [];
57
58			/**
59			* @var array
60			*/
61			protected $variableUsages = [];
62
63			/**
64			* @var array
65			*/
66			protected $recursiveVariableUsages = [];
67
68			/**
69			* @var array
70			*/
71			protected $recursivelyReferencedFragment = [];
72
73			/**
74			* ValidationContext constructor.
75			* @param Schema $schema
76			* @param DocumentNode $document
77			* @param TypeInfo $typeInfo
78			*/
79			public function __construct(Schema $schema, DocumentNode $document, TypeInfo $typeInfo)
80			{
81			$this->schema = $schema;
82			$this->document = $document;
83			$this->typeInfo = $typeInfo;
84			}
85
86			/**
87			* @inheritdoc
88			*/
89			public function reportError(ValidationException $error): void
90			{
91			$this->errors[] = $error;
92			}
93
94			/**
95			* @inheritdoc
96			*/
97			public function getErrors(): array
98			{
99			return $this->errors;
100			}
101
102			/**
103			* @return TypeInterface\|null
104			*/
105			public function getType(): ?TypeInterface
106			{
107			return $this->typeInfo->getType();
108			}
109
110			/**
111			* @inheritdoc
112			*/
113			public function getParentType(): ?TypeInterface
114			{
115			return $this->typeInfo->getParentType();
116			}
117
118			/**
119			* @inheritdoc
120			*/
121			public function getInputType(): ?TypeInterface
122			{
123			return $this->typeInfo->getInputType();
124			}
125
126			/**
127			* @inheritdoc
128			*/
129			public function getParentInputType(): ?TypeInterface
130			{
131			return $this->typeInfo->getParentInputType();
132			}
133
134			/**
135			* @inheritdoc
136			*/
137			public function getFieldDefinition(): ?Field
138			{
139			return $this->typeInfo->getFieldDefinition();
140			}
141
142			/**
143			* @inheritdoc
144			*/
145			public function getSchema(): Schema
146			{
147			return $this->schema;
148			}
149
150			/**
151			* @inheritdoc
152			*/
153			public function getArgument(): ?Argument
154			{
155			return $this->typeInfo->getArgument();
156			}
157
158			/**
159			* @inheritdoc
160			*/
161			public function getDirective(): ?Directive
162			{
163			return $this->typeInfo->getDirective();
164			}
165
166			/**
167			* @inheritdoc
168			*/
169			public function getFragment(string $name): ?FragmentDefinitionNode
170			{
171			if (empty($this->fragments)) {
172			$this->fragments = array_reduce($this->document->getDefinitions(), function ($fragments, $definition) {
173			if ($definition instanceof FragmentDefinitionNode) {
174			$fragments[$definition->getNameValue()] = $definition;
175			}
176			return $fragments;
177			}, []);
178			}
179
180			return $this->fragments[$name] ?? null;
181			}
182
183			/**
184			* @inheritdoc
185			*/
186			public function getFragmentSpreads(SelectionSetNode $selectionSet): array
187			{
188			$spreads = $this->fragmentSpreads[(string)$selectionSet] ?? null;
189
190			if (null === $spreads) {
191			$spreads = [];
192
193			$setsToVisit = [$selectionSet];
194
195			while (!empty($setsToVisit)) {
196			/** @var SelectionSetNode $set */
197			$set = array_pop($setsToVisit);
198
199			foreach ($set->getSelections() as $selection) {
200			if ($selection instanceof FragmentSpreadNode) {
201			$spreads[] = $selection;
202			} elseif ($selection instanceof SelectionSetAwareInterface && $selection->hasSelectionSet()) {
203			$setsToVisit[] = $selection->getSelectionSet();
204			}
205			}
206			}
207
208			$this->fragmentSpreads[(string)$selectionSet] = $spreads;
209			}
210
211			return $spreads;
212			}
213
214			/**
215			* @inheritdoc
216			*/
217			public function getRecursiveVariableUsages(OperationDefinitionNode $operation): array
218			{
219			$usages = $this->recursiveVariableUsages[(string)$operation] ?? null;
220
221			if (null === $usages) {
222			$usages = $this->getVariableUsages($operation);
223			$fragments = $this->getRecursivelyReferencedFragments($operation);
224
225			foreach ($fragments as $fragment) {
226			// TODO: Figure out a more performance way to do this.
227			/** @noinspection SlowArrayOperationsInLoopInspection */
228			$usages = array_merge($usages, $this->getVariableUsages($fragment));
229			}
230
231			$this->recursiveVariableUsages[(string)$operation] = $usages;
232			}
233
234			return $usages;
235			}
236
237			/**
238			* @inheritdoc
239			*/
240			public function getVariableUsages($node): array
241			{
242			$usages = $this->variableUsages[(string)$node] ?? null;
243
244			if (null === $usages) {
245			$usages = [];
246			$typeInfo = new TypeInfo($this->schema);
247			$visitor = new TypeInfoVisitor($typeInfo, new Visitor(
248			function (NodeInterface $node) use (&$usages, $typeInfo): ?NodeInterface {
249			if ($node instanceof VariableDefinitionNode) {
250			return null;
251			}
252
253			if ($node instanceof VariableNode) {
254			$usages[] = ['node' => $node, 'type' => $typeInfo->getInputType()];
255			}
256
257			return $node;
258			}
259			));
260
261			$node->acceptVisitor($visitor);
262
263			$this->variableUsages[(string)$node] = $usages;
264			}
265
266			return $usages;
267			}
268
269			/**
270			* @inheritdoc
271			*/
272			public function getRecursivelyReferencedFragments(OperationDefinitionNode $operation): array
273			{
274			$fragments = $this->recursivelyReferencedFragment[(string)$operation] ?? null;
275
276			if (null === $fragments) {
277			$fragments = [];
278			$collectedNames = [];
279			$nodesToVisit = [$operation->getSelectionSet()];
280
281			while (!empty($nodesToVisit)) {
282			$node = array_pop($nodesToVisit);
283			$spreads = $this->getFragmentSpreads($node);
284
285			foreach ($spreads as $spread) {
286			$fragmentName = $spread->getNameValue();
287
288			if (!isset($collectedNames[$fragmentName])) {
289			$collectedNames[$fragmentName] = true;
290			$fragment = $this->getFragment($fragmentName);
291
292			if (null !== $fragment) {
293			$fragments[] = $fragment;
294			$nodesToVisit[] = $fragment->getSelectionSet();
295			}
296			}
297			}
298			}
299
300			$this->recursivelyReferencedFragment[(string)$operation] = $fragments;
301			}
302
303			return $fragments;
304			}
305			}
306

digiaonline / graphql-php

Pull Request — master (#270)

ValidationContext::getFragmentSpreads() B

Complexity

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Duplication

Importance

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