digiaonline /
graphql-php
| Total Complexity | 102 |
| Total Lines | 981 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Executor often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Executor, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 34 | class Executor |
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| 35 | { |
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| 36 | /** |
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| 37 | * @var ExecutionContext |
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| 38 | */ |
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| 39 | protected $context; |
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| 40 | |||
| 41 | /** |
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| 42 | * @var OperationDefinitionNode |
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| 43 | */ |
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| 44 | protected $operation; |
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| 45 | |||
| 46 | /** |
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| 47 | * @var mixed |
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| 48 | */ |
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| 49 | protected $rootValue; |
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| 50 | |||
| 51 | /** |
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| 52 | * @var FieldCollector |
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| 53 | */ |
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| 54 | protected $fieldCollector; |
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| 55 | |||
| 56 | /** |
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| 57 | * @var array |
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| 58 | */ |
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| 59 | protected $finalResult; |
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| 60 | |||
| 61 | /** |
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| 62 | * @var ErrorHandlerInterface|null |
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| 63 | */ |
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| 64 | protected $errorHandler; |
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| 65 | |||
| 66 | /** |
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| 67 | * @var array |
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| 68 | */ |
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| 69 | private static $defaultFieldResolver = [__CLASS__, 'defaultFieldResolver']; |
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| 70 | |||
| 71 | /** |
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| 72 | * Executor constructor. |
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| 73 | * |
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| 74 | * @param ExecutionContext $context |
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| 75 | * @param FieldCollector $fieldCollector |
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| 76 | * @param ErrorHandlerInterface|null $errorHandler |
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| 77 | */ |
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| 78 | public function __construct( |
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| 79 | ExecutionContext $context, |
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| 80 | FieldCollector $fieldCollector, |
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| 81 | ?ErrorHandlerInterface $errorHandler = null |
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| 82 | ) { |
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| 83 | $this->context = $context; |
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| 84 | $this->fieldCollector = $fieldCollector; |
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| 85 | $this->errorHandler = $errorHandler; |
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| 86 | } |
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| 87 | |||
| 88 | /** |
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| 89 | * @return array|null |
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| 90 | * @throws ExecutionException |
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| 91 | * @throws \Throwable |
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| 92 | */ |
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| 93 | public function execute(): ?array |
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| 122 | } |
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| 123 | |||
| 124 | /** |
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| 125 | * @param Schema $schema |
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| 126 | * @param OperationDefinitionNode $operation |
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| 127 | * |
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| 128 | * @return ObjectType|null |
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| 129 | * @throws ExecutionException |
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| 130 | */ |
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| 131 | public function getOperationType(Schema $schema, OperationDefinitionNode $operation): ?ObjectType |
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| 132 | { |
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| 133 | switch ($operation->getOperation()) { |
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| 134 | case 'query': |
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| 135 | return $schema->getQueryType(); |
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| 136 | case 'mutation': |
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| 137 | $mutationType = $schema->getMutationType(); |
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| 138 | if (null === $mutationType) { |
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| 139 | throw new ExecutionException( |
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| 140 | 'Schema is not configured for mutations', |
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| 141 | [$operation] |
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| 142 | ); |
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| 143 | } |
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| 144 | |||
| 145 | return $mutationType; |
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| 146 | case 'subscription': |
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| 147 | $subscriptionType = $schema->getSubscriptionType(); |
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| 148 | if (null === $subscriptionType) { |
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| 149 | throw new ExecutionException( |
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| 150 | 'Schema is not configured for subscriptions', |
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| 151 | [$operation] |
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| 152 | ); |
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| 153 | } |
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| 154 | |||
| 155 | return $subscriptionType; |
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| 156 | default: |
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| 157 | throw new ExecutionException( |
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| 158 | 'Can only execute queries, mutations and subscriptions', |
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| 159 | [$operation] |
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| 160 | ); |
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| 161 | } |
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| 162 | } |
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| 163 | |||
| 164 | /** |
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| 165 | * Implements the "Evaluating selection sets" section of the spec for "write" mode. |
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| 166 | * |
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| 167 | * @param ObjectType $objectType |
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| 168 | * @param mixed $rootValue |
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| 169 | * @param array $path |
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| 170 | * @param array $fields |
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| 171 | * |
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| 172 | * @return array |
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| 173 | */ |
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| 174 | public function executeFieldsSerially( |
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| 175 | ObjectType $objectType, |
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| 176 | $rootValue, |
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| 177 | array $path, |
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| 178 | array $fields |
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| 179 | ): array { |
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| 180 | $finalResults = []; |
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| 181 | |||
| 182 | $promise = new FulfilledPromise([]); |
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| 183 | |||
| 184 | $resolve = function ($results, $fieldName, $path, $objectType, $rootValue, $fieldNodes) { |
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| 185 | $fieldPath = $path; |
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| 186 | $fieldPath[] = $fieldName; |
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| 187 | try { |
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| 188 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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| 189 | } catch (UndefinedException $ex) { |
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| 190 | return null; |
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| 191 | } |
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| 192 | |||
| 193 | if ($result instanceof ExtendedPromiseInterface) { |
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| 194 | return $result->then(function ($resolvedResult) use ($fieldName, $results) { |
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| 195 | $results[$fieldName] = $resolvedResult; |
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| 196 | |||
| 197 | return $results; |
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| 198 | }); |
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| 199 | } |
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| 200 | |||
| 201 | $results[$fieldName] = $result; |
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| 202 | |||
| 203 | return $results; |
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| 204 | }; |
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| 205 | |||
| 206 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 207 | $promise = $promise->then(function ($resolvedResults) use ( |
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| 208 | $resolve, |
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| 209 | $fieldName, |
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| 210 | $path, |
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| 211 | $objectType, |
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| 212 | $rootValue, |
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| 213 | $fieldNodes |
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| 214 | ) { |
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| 215 | return $resolve($resolvedResults, $fieldName, $path, $objectType, $rootValue, $fieldNodes); |
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| 216 | }); |
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| 217 | } |
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| 218 | |||
| 219 | $promise->then(function ($resolvedResults) use (&$finalResults) { |
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| 220 | $finalResults = $resolvedResults ?? []; |
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| 221 | })->otherwise(function (ExecutionException $ex) { |
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| 222 | $this->handleError($ex); |
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| 223 | }); |
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| 224 | |||
| 225 | return $finalResults; |
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| 226 | } |
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| 227 | |||
| 228 | /** |
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| 229 | * @param Schema $schema |
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| 230 | * @param ObjectType $parentType |
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| 231 | * @param string $fieldName |
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| 232 | * |
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| 233 | * @return Field|null |
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| 234 | */ |
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| 235 | public function getFieldDefinition( |
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| 236 | Schema $schema, |
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| 237 | ObjectType $parentType, |
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| 238 | string $fieldName |
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| 239 | ): ?Field { |
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| 240 | $schemaMetaFieldDefinition = SchemaMetaFieldDefinition(); |
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| 241 | $typeMetaFieldDefinition = TypeMetaFieldDefinition(); |
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| 242 | $typeNameMetaFieldDefinition = TypeNameMetaFieldDefinition(); |
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| 243 | |||
| 244 | if ($fieldName === $schemaMetaFieldDefinition->getName() && $schema->getQueryType() === $parentType) { |
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| 245 | return $schemaMetaFieldDefinition; |
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| 246 | } |
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| 247 | |||
| 248 | if ($fieldName === $typeMetaFieldDefinition->getName() && $schema->getQueryType() === $parentType) { |
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| 249 | return $typeMetaFieldDefinition; |
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| 250 | } |
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| 251 | |||
| 252 | if ($fieldName === $typeNameMetaFieldDefinition->getName()) { |
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| 253 | return $typeNameMetaFieldDefinition; |
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| 254 | } |
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| 255 | |||
| 256 | /** @noinspection PhpUnhandledExceptionInspection */ |
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| 257 | $fields = $parentType->getFields(); |
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| 258 | |||
| 259 | return $fields[$fieldName] ?? null; |
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| 260 | } |
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| 261 | |||
| 262 | /** |
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| 263 | * @param TypeInterface $fieldType |
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| 264 | * @param FieldNode[] $fieldNodes |
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| 265 | * @param ResolveInfo $info |
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| 266 | * @param array $path |
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| 267 | * @param mixed $result |
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| 268 | * |
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| 269 | * @return array|mixed|null |
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| 270 | * @throws \Throwable |
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| 271 | */ |
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| 272 | public function completeValueCatchingError( |
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| 273 | TypeInterface $fieldType, |
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| 274 | array $fieldNodes, |
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| 275 | ResolveInfo $info, |
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| 276 | array $path, |
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| 277 | &$result |
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| 278 | ) { |
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| 279 | if ($fieldType instanceof NonNullType) { |
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| 280 | return $this->completeValueWithLocatedError( |
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| 281 | $fieldType, |
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| 282 | $fieldNodes, |
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| 283 | $info, |
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| 284 | $path, |
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| 285 | $result |
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| 286 | ); |
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| 287 | } |
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| 288 | |||
| 289 | try { |
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| 290 | $completed = $this->completeValueWithLocatedError( |
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| 291 | $fieldType, |
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| 292 | $fieldNodes, |
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| 293 | $info, |
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| 294 | $path, |
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| 295 | $result |
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| 296 | ); |
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| 297 | |||
| 298 | if ($completed instanceof ExtendedPromiseInterface) { |
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| 299 | return $completed->then(null, function ($error) use ($fieldNodes, $path) { |
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| 300 | if ($error instanceof \Exception) { |
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| 301 | $this->handleError( |
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| 302 | $this->buildLocatedError($error, $fieldNodes, $path) |
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| 303 | ); |
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| 304 | } else { |
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| 305 | $this->handleError( |
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| 306 | $this->buildLocatedError( |
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| 307 | new ExecutionException($error ?? 'An unknown error occurred.'), |
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| 308 | $fieldNodes, |
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| 309 | $path |
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| 310 | ) |
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| 311 | ); |
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| 312 | } |
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| 313 | |||
| 314 | return new FulfilledPromise(null); |
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| 315 | }); |
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| 316 | } |
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| 317 | |||
| 318 | return $completed; |
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| 319 | } catch (\Throwable $ex) { |
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| 320 | $this->handleError($this->buildLocatedError($ex, $fieldNodes, $path)); |
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| 321 | return null; |
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| 322 | } |
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| 323 | } |
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| 324 | |||
| 325 | /** |
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| 326 | * @param TypeInterface $fieldType |
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| 327 | * @param FieldNode[] $fieldNodes |
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| 328 | * @param ResolveInfo $info |
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| 329 | * @param array $path |
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| 330 | * @param mixed $result |
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| 331 | * |
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| 332 | * @return array|mixed |
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| 333 | * @throws \Throwable |
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| 334 | */ |
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| 335 | public function completeValueWithLocatedError( |
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| 336 | TypeInterface $fieldType, |
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| 337 | array $fieldNodes, |
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| 338 | ResolveInfo $info, |
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| 339 | array $path, |
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| 340 | $result |
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| 341 | ) { |
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| 342 | try { |
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| 343 | $completed = $this->completeValue( |
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| 344 | $fieldType, |
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| 345 | $fieldNodes, |
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| 346 | $info, |
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| 347 | $path, |
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| 348 | $result |
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| 349 | ); |
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| 350 | |||
| 351 | return $completed; |
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| 352 | } catch (\Throwable $ex) { |
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| 353 | throw $this->buildLocatedError($ex, $fieldNodes, $path); |
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| 354 | } |
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| 355 | } |
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| 356 | |||
| 357 | /** |
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| 358 | * Implements the "Evaluating selection sets" section of the spec for "read" mode. |
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| 359 | * |
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| 360 | * @param ObjectType $objectType |
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| 361 | * @param mixed $rootValue |
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| 362 | * @param array $path |
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| 363 | * @param array $fields |
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| 364 | * |
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| 365 | * @return array |
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| 366 | * @throws ExecutionException |
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| 367 | * @throws \Throwable |
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| 368 | */ |
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| 369 | protected function executeFields( |
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| 370 | ObjectType $objectType, |
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| 371 | $rootValue, |
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| 372 | array $path, |
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| 373 | array $fields |
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| 374 | ): array { |
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| 375 | $finalResults = []; |
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| 376 | $doesContainPromise = false; |
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| 377 | |||
| 378 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 379 | $fieldPath = $path; |
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| 380 | $fieldPath[] = $fieldName; |
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| 381 | |||
| 382 | try { |
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| 383 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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| 384 | } catch (UndefinedException $ex) { |
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| 385 | continue; |
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| 386 | } |
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| 387 | |||
| 388 | $doesContainPromise = $doesContainPromise || $result instanceof ExtendedPromiseInterface; |
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| 389 | |||
| 390 | $finalResults[$fieldName] = $result; |
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| 391 | } |
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| 392 | |||
| 393 | if ($doesContainPromise) { |
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| 394 | $keys = \array_keys($finalResults); |
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| 395 | $promise = promiseAll(\array_values($finalResults)); |
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| 396 | |||
| 397 | $promise->then(function ($values) use ($keys, &$finalResults) { |
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| 398 | /** @noinspection ForeachSourceInspection */ |
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| 399 | foreach ($values as $i => $value) { |
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| 400 | $finalResults[$keys[$i]] = $value; |
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| 401 | } |
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| 402 | }); |
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| 403 | } |
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| 404 | |||
| 405 | return $finalResults; |
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| 406 | } |
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| 407 | |||
| 408 | /** |
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| 409 | * @param ObjectType $parentType |
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| 410 | * @param mixed $rootValue |
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| 411 | * @param FieldNode[] $fieldNodes |
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| 412 | * @param array $path |
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| 413 | * |
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| 414 | * @return array|mixed|null |
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| 415 | * @throws UndefinedException |
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| 416 | * @throws \Throwable |
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| 417 | */ |
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| 418 | protected function resolveField( |
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| 419 | ObjectType $parentType, |
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| 420 | $rootValue, |
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| 421 | array $fieldNodes, |
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| 422 | array $path |
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| 423 | ) { |
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| 424 | /** @var FieldNode $fieldNode */ |
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| 425 | $fieldNode = $fieldNodes[0]; |
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| 426 | |||
| 427 | $field = $this->getFieldDefinition($this->context->getSchema(), $parentType, $fieldNode->getNameValue()); |
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| 428 | |||
| 429 | if (null === $field) { |
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| 430 | throw new UndefinedException('Undefined field definition.'); |
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| 431 | } |
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| 432 | |||
| 433 | $info = $this->createResolveInfo($fieldNodes, $fieldNode, $field, $parentType, $path, $this->context); |
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| 434 | |||
| 435 | $resolveCallback = $this->determineResolveCallback($field, $parentType); |
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| 436 | |||
| 437 | $result = $this->resolveFieldValueOrError( |
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| 438 | $field, |
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| 439 | $fieldNode, |
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| 440 | $resolveCallback, |
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| 441 | $rootValue, |
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| 442 | $this->context, |
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| 443 | $info |
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| 444 | ); |
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| 445 | |||
| 446 | $result = $this->completeValueCatchingError( |
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| 447 | $field->getType(), |
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| 448 | $fieldNodes, |
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| 449 | $info, |
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| 450 | $path, |
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| 451 | $result |
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| 452 | ); |
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| 453 | |||
| 454 | return $result; |
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| 455 | } |
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| 456 | |||
| 457 | /** |
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| 458 | * @param Field $field |
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| 459 | * @param ObjectType $objectType |
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| 460 | * |
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| 461 | * @return callable|mixed|null |
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| 462 | */ |
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| 463 | protected function determineResolveCallback(Field $field, ObjectType $objectType) |
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| 464 | { |
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| 465 | if ($field->hasResolveCallback()) { |
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| 466 | return $field->getResolveCallback(); |
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| 467 | } |
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| 468 | |||
| 469 | if ($objectType->hasResolveCallback()) { |
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| 470 | return $objectType->getResolveCallback(); |
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| 471 | } |
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| 472 | |||
| 473 | return $this->context->getFieldResolver() ?? self::$defaultFieldResolver; |
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| 474 | } |
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| 475 | |||
| 476 | /** |
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| 477 | * @param TypeInterface $returnType |
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| 478 | * @param FieldNode[] $fieldNodes |
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| 479 | * @param ResolveInfo $info |
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| 480 | * @param array $path |
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| 481 | * @param mixed $result |
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| 482 | * |
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| 483 | * @return array|mixed |
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| 484 | * @throws InvariantException |
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| 485 | * @throws InvalidTypeException |
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| 486 | * @throws ExecutionException |
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| 487 | * @throws \Throwable |
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| 488 | */ |
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| 489 | protected function completeValue( |
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| 490 | TypeInterface $returnType, |
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| 491 | array $fieldNodes, |
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| 492 | ResolveInfo $info, |
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| 493 | array $path, |
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| 494 | &$result |
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| 495 | ) { |
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| 496 | if ($result instanceof ExtendedPromiseInterface) { |
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| 497 | /** @var ExtendedPromiseInterface $result */ |
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| 498 | return $result->then(function (&$value) use ($returnType, $fieldNodes, $info, $path) { |
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| 499 | return $this->completeValue($returnType, $fieldNodes, $info, $path, $value); |
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| 500 | }); |
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| 501 | } |
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| 502 | |||
| 503 | if ($result instanceof \Throwable) { |
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| 504 | throw $result; |
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| 505 | } |
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| 506 | |||
| 507 | // If result is null-like, return null. |
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| 508 | if (null === $result) { |
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| 509 | return null; |
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| 510 | } |
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| 511 | |||
| 512 | if ($returnType instanceof NonNullType) { |
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| 513 | $completed = $this->completeValue( |
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| 514 | $returnType->getOfType(), |
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| 515 | $fieldNodes, |
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| 516 | $info, |
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| 517 | $path, |
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| 518 | $result |
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| 519 | ); |
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| 520 | |||
| 521 | if ($completed === null) { |
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| 522 | throw new ExecutionException( |
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| 523 | \sprintf( |
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| 524 | 'Cannot return null for non-nullable field %s.%s.', |
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| 525 | $info->getParentType(), |
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| 526 | $info->getFieldName() |
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| 527 | ) |
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| 528 | ); |
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| 529 | } |
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| 530 | |||
| 531 | return $completed; |
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| 532 | } |
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| 533 | |||
| 534 | // If field type is List, complete each item in the list with the inner type |
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| 535 | if ($returnType instanceof ListType) { |
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| 536 | return $this->completeListValue($returnType, $fieldNodes, $info, $path, $result); |
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| 537 | } |
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| 538 | |||
| 539 | // If field type is Scalar or Enum, serialize to a valid value, returning |
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| 540 | // null if serialization is not possible. |
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| 541 | if ($returnType instanceof LeafTypeInterface) { |
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| 542 | return $this->completeLeafValue($returnType, $result); |
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| 543 | } |
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| 544 | |||
| 545 | // TODO: Make a function for checking abstract type? |
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| 546 | if ($returnType instanceof InterfaceType || $returnType instanceof UnionType) { |
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| 547 | return $this->completeAbstractValue($returnType, $fieldNodes, $info, $path, $result); |
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| 548 | } |
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| 549 | |||
| 550 | // Field type must be Object, Interface or Union and expect sub-selections. |
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| 551 | if ($returnType instanceof ObjectType) { |
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| 552 | return $this->completeObjectValue($returnType, $fieldNodes, $info, $path, $result); |
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| 553 | } |
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| 554 | |||
| 555 | throw new ExecutionException("Cannot complete value of unexpected type \"{$returnType}\"."); |
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| 556 | } |
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| 557 | |||
| 558 | /** |
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| 559 | * @param AbstractTypeInterface $returnType |
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| 560 | * @param FieldNode[] $fieldNodes |
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| 561 | * @param ResolveInfo $info |
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| 562 | * @param array $path |
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| 563 | * @param mixed $result |
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| 564 | * |
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| 565 | * @return array|PromiseInterface |
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| 566 | * @throws ExecutionException |
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| 567 | * @throws InvalidTypeException |
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| 568 | * @throws InvariantException |
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| 569 | * @throws \Throwable |
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| 570 | */ |
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| 571 | protected function completeAbstractValue( |
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| 572 | AbstractTypeInterface $returnType, |
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| 573 | array $fieldNodes, |
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| 574 | ResolveInfo $info, |
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| 575 | array $path, |
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| 576 | &$result |
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| 577 | ) { |
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| 578 | $runtimeType = $returnType->resolveType($result, $this->context->getContextValue(), $info); |
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| 579 | |||
| 580 | if (null === $runtimeType) { |
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| 581 | // TODO: Display warning |
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| 582 | $runtimeType = $this->defaultTypeResolver($result, $this->context->getContextValue(), $info, $returnType); |
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| 583 | } |
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| 584 | |||
| 585 | if ($runtimeType instanceof ExtendedPromiseInterface) { |
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| 586 | return $runtimeType->then(function ($resolvedRuntimeType) use ( |
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| 587 | $returnType, |
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| 588 | $fieldNodes, |
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| 589 | $info, |
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| 590 | $path, |
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| 591 | &$result |
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| 592 | ) { |
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| 593 | return $this->completeObjectValue( |
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| 594 | $this->ensureValidRuntimeType($resolvedRuntimeType, $returnType, $info, $result), |
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| 595 | $fieldNodes, |
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| 596 | $info, |
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| 597 | $path, |
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| 598 | $result |
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| 599 | ); |
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| 600 | }); |
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| 601 | } |
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| 602 | |||
| 603 | return $this->completeObjectValue( |
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| 604 | $this->ensureValidRuntimeType($runtimeType, $returnType, $info, $result), |
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| 605 | $fieldNodes, |
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| 606 | $info, |
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| 607 | $path, |
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| 608 | $result |
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| 609 | ); |
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| 610 | } |
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| 611 | |||
| 612 | /** |
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| 613 | * @param NamedTypeInterface|string $runtimeTypeOrName |
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| 614 | * @param NamedTypeInterface $returnType |
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| 615 | * @param ResolveInfo $info |
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| 616 | * @param mixed $result |
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| 617 | * |
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| 618 | * @return TypeInterface|ObjectType|null |
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| 619 | * @throws ExecutionException |
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| 620 | * @throws InvariantException |
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| 621 | */ |
||
| 622 | protected function ensureValidRuntimeType( |
||
| 623 | $runtimeTypeOrName, |
||
| 624 | NamedTypeInterface $returnType, |
||
| 625 | ResolveInfo $info, |
||
| 626 | &$result |
||
| 627 | ) { |
||
| 628 | /** @var NamedTypeInterface $runtimeType */ |
||
| 629 | $runtimeType = \is_string($runtimeTypeOrName) |
||
| 630 | ? $this->context->getSchema()->getType($runtimeTypeOrName) |
||
| 631 | : $runtimeTypeOrName; |
||
| 632 | |||
| 633 | $runtimeTypeName = $runtimeType->getName(); |
||
| 634 | $returnTypeName = $returnType->getName(); |
||
| 635 | |||
| 636 | if (!$runtimeType instanceof ObjectType) { |
||
| 637 | $parentTypeName = $info->getParentType()->getName(); |
||
| 638 | $fieldName = $info->getFieldName(); |
||
| 639 | |||
| 640 | throw new ExecutionException( |
||
| 641 | \sprintf( |
||
| 642 | 'Abstract type %s must resolve to an Object type at runtime for field %s.%s ' . |
||
| 643 | 'with value "%s", received "%s".', |
||
| 644 | $returnTypeName, |
||
| 645 | $parentTypeName, |
||
| 646 | $fieldName, |
||
| 647 | $result, |
||
| 648 | $runtimeTypeName |
||
| 649 | ) |
||
| 650 | ); |
||
| 651 | } |
||
| 652 | |||
| 653 | if (!$this->context->getSchema()->isPossibleType($returnType, $runtimeType)) { |
||
| 654 | throw new ExecutionException( |
||
| 655 | \sprintf('Runtime Object type "%s" is not a possible type for "%s".', $runtimeTypeName, $returnTypeName) |
||
| 656 | ); |
||
| 657 | } |
||
| 658 | |||
| 659 | if ($runtimeType !== $this->context->getSchema()->getType($runtimeType->getName())) { |
||
|
introduced
by
|
|||
| 660 | throw new ExecutionException( |
||
| 661 | \sprintf( |
||
| 662 | 'Schema must contain unique named types but contains multiple types named "%s". ' . |
||
| 663 | 'Make sure that `resolveType` function of abstract type "%s" returns the same ' . |
||
| 664 | 'type instance as referenced anywhere else within the schema.', |
||
| 665 | $runtimeTypeName, |
||
| 666 | $returnTypeName |
||
| 667 | ) |
||
| 668 | ); |
||
| 669 | } |
||
| 670 | |||
| 671 | return $runtimeType; |
||
| 672 | } |
||
| 673 | |||
| 674 | /** |
||
| 675 | * @param mixed $value |
||
| 676 | * @param mixed $context |
||
| 677 | * @param ResolveInfo $info |
||
| 678 | * @param AbstractTypeInterface $abstractType |
||
| 679 | * |
||
| 680 | * @return NamedTypeInterface|mixed|null |
||
| 681 | * @throws InvariantException |
||
| 682 | */ |
||
| 683 | protected function defaultTypeResolver( |
||
| 684 | $value, |
||
| 685 | $context, |
||
| 686 | ResolveInfo $info, |
||
| 687 | AbstractTypeInterface $abstractType |
||
| 688 | ) { |
||
| 689 | if (\is_array($value) && isset($value['__typename'])) { |
||
| 690 | return $value['__typename']; |
||
| 691 | } |
||
| 692 | |||
| 693 | /** @var ObjectType[] $possibleTypes */ |
||
| 694 | $possibleTypes = $info->getSchema()->getPossibleTypes($abstractType); |
||
| 695 | $promisedIsTypeOfResults = []; |
||
| 696 | |||
| 697 | foreach ($possibleTypes as $index => $type) { |
||
| 698 | $isTypeOfResult = $type->isTypeOf($value, $context, $info); |
||
| 699 | |||
| 700 | if ($isTypeOfResult instanceof ExtendedPromiseInterface) { |
||
| 701 | $promisedIsTypeOfResults[$index] = $isTypeOfResult; |
||
| 702 | continue; |
||
| 703 | } |
||
| 704 | |||
| 705 | if ($isTypeOfResult === true) { |
||
| 706 | return $type; |
||
| 707 | } |
||
| 708 | |||
| 709 | if (\is_array($value)) { |
||
| 710 | // TODO: Make `type` configurable |
||
| 711 | /** @noinspection NestedPositiveIfStatementsInspection */ |
||
| 712 | if (isset($value['type']) && $value['type'] === $type->getName()) { |
||
| 713 | return $type; |
||
| 714 | } |
||
| 715 | } |
||
| 716 | } |
||
| 717 | |||
| 718 | if (!empty($promisedIsTypeOfResults)) { |
||
| 719 | return promiseAll($promisedIsTypeOfResults) |
||
| 720 | ->then(function ($isTypeOfResults) use ($possibleTypes) { |
||
| 721 | /** @noinspection ForeachSourceInspection */ |
||
| 722 | foreach ($isTypeOfResults as $index => $result) { |
||
| 723 | if ($result) { |
||
| 724 | return $possibleTypes[$index]; |
||
| 725 | } |
||
| 726 | } |
||
| 727 | |||
| 728 | return null; |
||
| 729 | }); |
||
| 730 | } |
||
| 731 | |||
| 732 | return null; |
||
| 733 | } |
||
| 734 | |||
| 735 | /** |
||
| 736 | * @param ListType $returnType |
||
| 737 | * @param FieldNode[] $fieldNodes |
||
| 738 | * @param ResolveInfo $info |
||
| 739 | * @param array $path |
||
| 740 | * @param mixed $result |
||
| 741 | * |
||
| 742 | * @return array|\React\Promise\Promise |
||
| 743 | * @throws \Throwable |
||
| 744 | */ |
||
| 745 | protected function completeListValue( |
||
| 779 | } |
||
| 780 | |||
| 781 | /** |
||
| 782 | * @param LeafTypeInterface|SerializableTypeInterface $returnType |
||
| 783 | * @param mixed $result |
||
| 784 | * |
||
| 785 | * @return mixed |
||
| 786 | * @throws ExecutionException |
||
| 787 | */ |
||
| 788 | protected function completeLeafValue($returnType, &$result) |
||
| 789 | { |
||
| 790 | $serializedResult = $returnType->serialize($result); |
||
| 791 | |||
| 792 | if ($serializedResult === null) { |
||
| 793 | // TODO: Make a method for this type of exception |
||
| 794 | throw new ExecutionException( |
||
| 795 | \sprintf('Expected value of type "%s" but received: %s.', (string)$returnType, toString($result)) |
||
| 796 | ); |
||
| 797 | } |
||
| 798 | |||
| 799 | return $serializedResult; |
||
| 800 | } |
||
| 801 | |||
| 802 | /** |
||
| 803 | * @param ObjectType $returnType |
||
| 804 | * @param array $fieldNodes |
||
| 805 | * @param ResolveInfo $info |
||
| 806 | * @param array $path |
||
| 807 | * @param mixed $result |
||
| 808 | * |
||
| 809 | * @return array |
||
| 810 | * @throws ExecutionException |
||
| 811 | * @throws InvalidTypeException |
||
| 812 | * @throws InvariantException |
||
| 813 | * @throws \Throwable |
||
| 814 | */ |
||
| 815 | protected function completeObjectValue( |
||
| 816 | ObjectType $returnType, |
||
| 817 | array $fieldNodes, |
||
| 818 | ResolveInfo $info, |
||
| 819 | array $path, |
||
| 820 | &$result |
||
| 821 | ): array { |
||
| 822 | if (null !== $returnType->getIsTypeOf()) { |
||
| 823 | $isTypeOf = $returnType->isTypeOf($result, $this->context->getContextValue(), $info); |
||
| 824 | |||
| 825 | // TODO: Check for promise? |
||
| 826 | if (!$isTypeOf) { |
||
| 827 | throw new ExecutionException( |
||
| 828 | sprintf('Expected value of type "%s" but received: %s.', (string)$returnType, toString($result)) |
||
| 829 | ); |
||
| 830 | } |
||
| 831 | } |
||
| 832 | |||
| 833 | return $this->executeSubFields($returnType, $fieldNodes, $path, $result); |
||
| 834 | } |
||
| 835 | |||
| 836 | /** |
||
| 837 | * @param Field $field |
||
| 838 | * @param FieldNode $fieldNode |
||
| 839 | * @param callable $resolveCallback |
||
| 840 | * @param mixed $rootValue |
||
| 841 | * @param ExecutionContext $context |
||
| 842 | * @param ResolveInfo $info |
||
| 843 | * |
||
| 844 | * @return array|\Throwable |
||
| 845 | */ |
||
| 846 | protected function resolveFieldValueOrError( |
||
| 847 | Field $field, |
||
| 848 | FieldNode $fieldNode, |
||
| 849 | ?callable $resolveCallback, |
||
| 850 | $rootValue, |
||
| 851 | ExecutionContext $context, |
||
| 852 | ResolveInfo $info |
||
| 853 | ) { |
||
| 854 | try { |
||
| 855 | $result = $resolveCallback( |
||
| 856 | $rootValue, |
||
| 857 | coerceArgumentValues($field, $fieldNode, $context->getVariableValues()), |
||
| 858 | $context->getContextValue(), |
||
| 859 | $info |
||
| 860 | ); |
||
| 861 | } catch (\Throwable $error) { |
||
| 862 | return $error; |
||
| 863 | } |
||
| 864 | |||
| 865 | return $result; |
||
| 866 | } |
||
| 867 | |||
| 868 | /** |
||
| 869 | * @param ObjectType $returnType |
||
| 870 | * @param FieldNode[] $fieldNodes |
||
| 871 | * @param array $path |
||
| 872 | * @param mixed $result |
||
| 873 | * |
||
| 874 | * @return array |
||
| 875 | * @throws ExecutionException |
||
| 876 | * @throws InvalidTypeException |
||
| 877 | * @throws InvariantException |
||
| 878 | * @throws \Throwable |
||
| 879 | */ |
||
| 880 | protected function executeSubFields( |
||
| 881 | ObjectType $returnType, |
||
| 882 | array $fieldNodes, |
||
| 883 | array $path, |
||
| 884 | &$result |
||
| 885 | ): array { |
||
| 886 | $subFields = []; |
||
| 887 | $visitedFragmentNames = []; |
||
| 888 | |||
| 889 | foreach ($fieldNodes as $fieldNode) { |
||
| 890 | if (null !== $fieldNode->getSelectionSet()) { |
||
| 891 | $subFields = $this->fieldCollector->collectFields( |
||
| 892 | $returnType, |
||
| 893 | $fieldNode->getSelectionSet(), |
||
| 894 | $subFields, |
||
| 895 | $visitedFragmentNames |
||
| 896 | ); |
||
| 897 | } |
||
| 898 | } |
||
| 899 | |||
| 900 | if (!empty($subFields)) { |
||
| 901 | return $this->executeFields($returnType, $result, $path, $subFields); |
||
| 902 | } |
||
| 903 | |||
| 904 | return $result; |
||
| 905 | } |
||
| 906 | |||
| 907 | /** |
||
| 908 | * @param \Throwable $originalException |
||
| 909 | * @param array $nodes |
||
| 910 | * @param array $path |
||
| 911 | * |
||
| 912 | * @return ExecutionException |
||
| 913 | */ |
||
| 914 | protected function buildLocatedError( |
||
| 915 | \Throwable $originalException, |
||
| 916 | array $nodes = [], |
||
| 917 | array $path = [] |
||
| 918 | ): ExecutionException { |
||
| 919 | return new ExecutionException( |
||
| 920 | $originalException->getMessage(), |
||
| 921 | $originalException instanceof GraphQLException |
||
| 922 | ? $originalException->getNodes() |
||
| 923 | : $nodes, |
||
| 924 | $originalException instanceof GraphQLException |
||
| 925 | ? $originalException->getSource() |
||
| 926 | : null, |
||
| 927 | $originalException instanceof GraphQLException |
||
| 928 | ? $originalException->getPositions() |
||
| 929 | : null, |
||
| 930 | $originalException instanceof GraphQLException |
||
| 931 | ? ($originalException->getPath() ?? $path) |
||
| 932 | : $path, |
||
| 933 | null, |
||
| 934 | $originalException |
||
| 935 | ); |
||
| 936 | } |
||
| 937 | |||
| 938 | /** |
||
| 939 | * @param FieldNode[] $fieldNodes |
||
| 940 | * @param FieldNode $fieldNode |
||
| 941 | * @param Field $field |
||
| 942 | * @param ObjectType $parentType |
||
| 943 | * @param array|null $path |
||
| 944 | * @param ExecutionContext $context |
||
| 945 | * |
||
| 946 | * @return ResolveInfo |
||
| 947 | */ |
||
| 948 | protected function createResolveInfo( |
||
| 949 | array $fieldNodes, |
||
| 950 | FieldNode $fieldNode, |
||
| 951 | Field $field, |
||
| 952 | ObjectType $parentType, |
||
| 953 | ?array $path, |
||
| 954 | ExecutionContext $context |
||
| 955 | ): ResolveInfo { |
||
| 956 | return new ResolveInfo( |
||
| 957 | $fieldNode->getNameValue(), |
||
| 958 | $fieldNodes, |
||
| 959 | $field->getType(), |
||
| 960 | $parentType, |
||
| 961 | $path, |
||
| 962 | $context->getSchema(), |
||
| 963 | $context->getFragments(), |
||
| 964 | $context->getRootValue(), |
||
| 965 | $context->getOperation(), |
||
| 966 | $context->getVariableValues() |
||
| 967 | ); |
||
| 968 | } |
||
| 969 | |||
| 970 | /** |
||
| 971 | * @param ExecutionException $error |
||
| 972 | */ |
||
| 973 | protected function handleError(ExecutionException $error) |
||
| 980 | } |
||
| 981 | |||
| 982 | /** |
||
| 983 | * Try to resolve a field without any field resolver function. |
||
| 984 | * |
||
| 985 | * @param array|object $rootValue |
||
| 986 | * @param array $arguments |
||
| 987 | * @param mixed $contextValues |
||
| 988 | * @param ResolveInfo $info |
||
| 989 | * |
||
| 990 | * @return mixed|null |
||
| 991 | */ |
||
| 992 | public static function defaultFieldResolver($rootValue, array $arguments, $contextValues, ResolveInfo $info) |
||
| 993 | { |
||
| 1015 | } |
||
| 1016 | } |
||
| 1017 |
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