digiaonline /
graphql-php
| Total Complexity | 102 |
| Total Lines | 965 |
| 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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| 36 | class Executor |
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| 37 | { |
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| 38 | /** |
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| 39 | * @var ExecutionContext |
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| 40 | */ |
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| 41 | protected $context; |
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| 42 | |||
| 43 | /** |
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| 44 | * @var OperationDefinitionNode |
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| 45 | */ |
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| 46 | protected $operation; |
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| 47 | |||
| 48 | /** |
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| 49 | * @var mixed |
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| 50 | */ |
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| 51 | protected $rootValue; |
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| 52 | |||
| 53 | /** |
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| 54 | * @var FieldCollector |
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| 55 | */ |
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| 56 | protected $fieldCollector; |
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| 57 | |||
| 58 | /** |
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| 59 | * @var array |
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| 60 | */ |
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| 61 | protected $finalResult; |
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| 62 | |||
| 63 | /** |
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| 64 | * @var ErrorHandlerInterface |
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| 65 | */ |
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| 66 | protected $errorHandler; |
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| 67 | |||
| 68 | /** |
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| 69 | * @var array |
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| 70 | */ |
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| 71 | private static $defaultFieldResolver = [__CLASS__, 'defaultFieldResolver']; |
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| 72 | |||
| 73 | /** |
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| 74 | * Executor constructor. |
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| 75 | * @param ExecutionContext $context |
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| 76 | * @param FieldCollector $fieldCollector |
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| 77 | * @param ErrorHandlerInterface $errorHandler |
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| 78 | */ |
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| 79 | public function __construct( |
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| 80 | ExecutionContext $context, |
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| 81 | FieldCollector $fieldCollector, |
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| 82 | ErrorHandlerInterface $errorHandler |
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| 83 | ) { |
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| 84 | $this->context = $context; |
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| 85 | $this->fieldCollector = $fieldCollector; |
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| 86 | $this->errorHandler = $errorHandler; |
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| 87 | } |
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| 88 | |||
| 89 | /** |
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| 90 | * @return array|null |
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| 91 | * @throws ExecutionException |
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| 92 | * @throws \Throwable |
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| 93 | */ |
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| 94 | public function execute(): ?array |
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| 123 | } |
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| 124 | |||
| 125 | /** |
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| 126 | * @param Schema $schema |
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| 127 | * @param OperationDefinitionNode $operation |
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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 | return $mutationType; |
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| 145 | case 'subscription': |
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| 146 | $subscriptionType = $schema->getSubscriptionType(); |
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| 147 | if (null === $subscriptionType) { |
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| 148 | throw new ExecutionException( |
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| 149 | 'Schema is not configured for subscriptions', |
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| 150 | [$operation] |
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| 151 | ); |
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| 152 | } |
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| 153 | return $subscriptionType; |
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| 154 | default: |
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| 155 | throw new ExecutionException( |
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| 156 | 'Can only execute queries, mutations and subscriptions', |
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| 157 | [$operation] |
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| 158 | ); |
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| 159 | } |
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| 160 | } |
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| 161 | |||
| 162 | /** |
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| 163 | * Implements the "Evaluating selection sets" section of the spec for "write" mode. |
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| 164 | * |
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| 165 | * @param ObjectType $objectType |
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| 166 | * @param mixed $rootValue |
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| 167 | * @param array $path |
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| 168 | * @param array $fields |
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| 169 | * @return array |
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| 170 | * @throws InvalidArgumentException |
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| 171 | * @throws Throwable |
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| 172 | */ |
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| 173 | public function executeFieldsSerially( |
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| 174 | ObjectType $objectType, |
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| 175 | $rootValue, |
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| 176 | array $path, |
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| 177 | array $fields |
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| 178 | ): array { |
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| 179 | $finalResults = []; |
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| 180 | |||
| 181 | $promise = new FulfilledPromise([]); |
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| 182 | |||
| 183 | $resolve = function ($results, $fieldName, $path, $objectType, $rootValue, $fieldNodes) { |
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| 184 | $fieldPath = $path; |
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| 185 | $fieldPath[] = $fieldName; |
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| 186 | try { |
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| 187 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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| 188 | } catch (UndefinedException $ex) { |
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| 189 | return null; |
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| 190 | } |
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| 191 | |||
| 192 | if ($this->isPromise($result)) { |
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| 193 | /** @var ExtendedPromiseInterface $result */ |
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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 | return $results; |
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| 197 | }); |
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| 198 | } |
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| 199 | |||
| 200 | $results[$fieldName] = $result; |
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| 201 | |||
| 202 | return $results; |
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| 203 | }; |
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| 204 | |||
| 205 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 206 | $promise = $promise->then(function ($resolvedResults) use ( |
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| 207 | $resolve, |
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| 208 | $fieldName, |
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| 209 | $path, |
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| 210 | $objectType, |
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| 211 | $rootValue, |
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| 212 | $fieldNodes |
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| 213 | ) { |
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| 214 | return $resolve($resolvedResults, $fieldName, $path, $objectType, $rootValue, $fieldNodes); |
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| 215 | }); |
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| 216 | } |
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| 217 | |||
| 218 | $promise->then(function ($resolvedResults) use (&$finalResults) { |
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| 219 | $finalResults = $resolvedResults ?? []; |
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| 220 | })->otherwise(function ($ex) { |
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| 221 | $this->context->addError($ex); |
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| 222 | }); |
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| 223 | |||
| 224 | return $finalResults; |
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| 225 | } |
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| 226 | |||
| 227 | /** |
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| 228 | * @param Schema $schema |
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| 229 | * @param ObjectType $parentType |
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| 230 | * @param string $fieldName |
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| 231 | * @return Field|null |
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| 232 | */ |
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| 233 | public function getFieldDefinition( |
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| 234 | Schema $schema, |
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| 235 | ObjectType $parentType, |
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| 236 | string $fieldName |
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| 237 | ): ?Field { |
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| 238 | $schemaMetaFieldDefinition = SchemaMetaFieldDefinition(); |
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| 239 | $typeMetaFieldDefinition = TypeMetaFieldDefinition(); |
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| 240 | $typeNameMetaFieldDefinition = TypeNameMetaFieldDefinition(); |
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| 241 | |||
| 242 | if ($fieldName === $schemaMetaFieldDefinition->getName() && $schema->getQueryType() === $parentType) { |
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| 243 | return $schemaMetaFieldDefinition; |
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| 244 | } |
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| 245 | |||
| 246 | if ($fieldName === $typeMetaFieldDefinition->getName() && $schema->getQueryType() === $parentType) { |
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| 247 | return $typeMetaFieldDefinition; |
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| 248 | } |
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| 249 | |||
| 250 | if ($fieldName === $typeNameMetaFieldDefinition->getName()) { |
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| 251 | return $typeNameMetaFieldDefinition; |
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| 252 | } |
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| 253 | |||
| 254 | $fields = $parentType->getFields(); |
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| 255 | |||
| 256 | return $fields[$fieldName] ?? null; |
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| 257 | } |
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| 258 | |||
| 259 | /** |
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| 260 | * @param TypeInterface $fieldType |
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| 261 | * @param FieldNode[] $fieldNodes |
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| 262 | * @param ResolveInfo $info |
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| 263 | * @param array $path |
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| 264 | * @param mixed $result |
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| 265 | * @return array|mixed|null |
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| 266 | * @throws \Throwable |
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| 267 | */ |
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| 268 | public function completeValueCatchingError( |
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| 269 | TypeInterface $fieldType, |
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| 270 | array $fieldNodes, |
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| 271 | ResolveInfo $info, |
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| 272 | array $path, |
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| 273 | &$result |
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| 274 | ) { |
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| 275 | if ($fieldType instanceof NonNullType) { |
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| 276 | return $this->completeValueWithLocatedError( |
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| 277 | $fieldType, |
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| 278 | $fieldNodes, |
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| 279 | $info, |
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| 280 | $path, |
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| 281 | $result |
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| 282 | ); |
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| 283 | } |
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| 284 | |||
| 285 | try { |
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| 286 | $completed = $this->completeValueWithLocatedError( |
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| 287 | $fieldType, |
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| 288 | $fieldNodes, |
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| 289 | $info, |
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| 290 | $path, |
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| 291 | $result |
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| 292 | ); |
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| 293 | |||
| 294 | if ($this->isPromise($completed)) { |
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| 295 | $context = $this->context; |
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| 296 | /** @var ExtendedPromiseInterface $completed */ |
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| 297 | return $completed->then(null, function ($error) use ($context, $fieldNodes, $path) { |
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| 298 | //@TODO Handle $error better |
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| 299 | if ($error instanceof \Exception) { |
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| 300 | $context->addError($this->buildLocatedError($error, $fieldNodes, $path)); |
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| 301 | } else { |
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| 302 | $context->addError( |
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| 303 | $this->buildLocatedError( |
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| 304 | new ExecutionException($error ?? 'An unknown error occurred.'), |
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| 305 | $fieldNodes, |
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| 306 | $path |
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| 307 | ) |
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| 308 | ); |
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| 309 | } |
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| 310 | return new FulfilledPromise(null); |
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| 311 | }); |
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| 312 | } |
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| 313 | |||
| 314 | return $completed; |
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| 315 | } catch (\Throwable $ex) { |
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| 316 | $this->handleError($this->buildLocatedError($ex, $fieldNodes, $path)); |
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| 317 | return null; |
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| 318 | } |
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| 319 | } |
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| 320 | |||
| 321 | |||
| 322 | /** |
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| 323 | * @param TypeInterface $fieldType |
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| 324 | * @param FieldNode[] $fieldNodes |
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| 325 | * @param ResolveInfo $info |
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| 326 | * @param array $path |
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| 327 | * @param mixed $result |
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| 328 | * @return array|mixed |
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| 329 | * @throws \Throwable |
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| 330 | */ |
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| 331 | public function completeValueWithLocatedError( |
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| 332 | TypeInterface $fieldType, |
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| 333 | array $fieldNodes, |
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| 334 | ResolveInfo $info, |
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| 335 | array $path, |
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| 336 | $result |
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| 337 | ) { |
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| 338 | try { |
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| 339 | $completed = $this->completeValue( |
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| 340 | $fieldType, |
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| 341 | $fieldNodes, |
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| 342 | $info, |
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| 343 | $path, |
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| 344 | $result |
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| 345 | ); |
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| 346 | |||
| 347 | return $completed; |
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| 348 | } catch (\Throwable $ex) { |
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| 349 | throw $this->buildLocatedError($ex, $fieldNodes, $path); |
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| 350 | } |
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| 351 | } |
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| 352 | |||
| 353 | /** |
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| 354 | * Implements the "Evaluating selection sets" section of the spec for "read" mode. |
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| 355 | * |
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| 356 | * @param ObjectType $objectType |
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| 357 | * @param mixed $rootValue |
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| 358 | * @param array $path |
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| 359 | * @param array $fields |
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| 360 | * @return array |
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| 361 | * @throws \Throwable |
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| 362 | */ |
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| 363 | protected function executeFields( |
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| 364 | ObjectType $objectType, |
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| 365 | $rootValue, |
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| 366 | array $path, |
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| 367 | array $fields |
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| 368 | ): array { |
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| 369 | $finalResults = []; |
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| 370 | $doesContainPromise = false; |
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| 371 | |||
| 372 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 373 | $fieldPath = $path; |
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| 374 | $fieldPath[] = $fieldName; |
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| 375 | |||
| 376 | try { |
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| 377 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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| 378 | } catch (UndefinedException $ex) { |
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| 379 | continue; |
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| 380 | } |
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| 381 | |||
| 382 | $doesContainPromise = $doesContainPromise || $this->isPromise($result); |
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| 383 | |||
| 384 | $finalResults[$fieldName] = $result; |
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| 385 | } |
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| 386 | |||
| 387 | if ($doesContainPromise) { |
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| 388 | $keys = \array_keys($finalResults); |
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| 389 | $promise = promiseAll(\array_values($finalResults)); |
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| 390 | |||
| 391 | $promise->then(function ($values) use ($keys, &$finalResults) { |
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| 392 | /** @noinspection ForeachSourceInspection */ |
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| 393 | foreach ($values as $i => $value) { |
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| 394 | $finalResults[$keys[$i]] = $value; |
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| 395 | } |
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| 396 | }); |
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| 397 | } |
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| 398 | |||
| 399 | return $finalResults; |
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| 400 | } |
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| 401 | |||
| 402 | /** |
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| 403 | * @param ObjectType $parentType |
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| 404 | * @param mixed $rootValue |
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| 405 | * @param FieldNode[] $fieldNodes |
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| 406 | * @param array $path |
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| 407 | * @return array|mixed|null |
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| 408 | * @throws UndefinedException |
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| 409 | * @throws Throwable |
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| 410 | */ |
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| 411 | protected function resolveField( |
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| 412 | ObjectType $parentType, |
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| 413 | $rootValue, |
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| 414 | array $fieldNodes, |
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| 415 | array $path |
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| 416 | ) { |
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| 417 | /** @var FieldNode $fieldNode */ |
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| 418 | $fieldNode = $fieldNodes[0]; |
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| 419 | |||
| 420 | $field = $this->getFieldDefinition($this->context->getSchema(), $parentType, $fieldNode->getNameValue()); |
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| 421 | |||
| 422 | if (null === $field) { |
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| 423 | throw new UndefinedException('Undefined field definition.'); |
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| 424 | } |
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| 425 | |||
| 426 | $info = $this->createResolveInfo($fieldNodes, $fieldNode, $field, $parentType, $path, $this->context); |
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| 427 | |||
| 428 | $resolveCallback = $this->determineResolveCallback($field, $parentType); |
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| 429 | |||
| 430 | $result = $this->resolveFieldValueOrError( |
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| 431 | $field, |
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| 432 | $fieldNode, |
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| 433 | $resolveCallback, |
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| 434 | $rootValue, |
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| 435 | $this->context, |
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| 436 | $info |
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| 437 | ); |
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| 438 | |||
| 439 | $result = $this->completeValueCatchingError( |
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| 440 | $field->getType(), |
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| 441 | $fieldNodes, |
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| 442 | $info, |
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| 443 | $path, |
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| 444 | $result |
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| 445 | ); |
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| 446 | |||
| 447 | return $result; |
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| 448 | } |
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| 449 | |||
| 450 | /** |
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| 451 | * @param Field $field |
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| 452 | * @param ObjectType $objectType |
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| 453 | * @return callable|mixed|null |
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| 454 | */ |
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| 455 | protected function determineResolveCallback(Field $field, ObjectType $objectType) |
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| 456 | { |
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| 457 | if ($field->hasResolveCallback()) { |
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| 458 | return $field->getResolveCallback(); |
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| 459 | } |
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| 460 | |||
| 461 | if ($objectType->hasResolveCallback()) { |
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| 462 | return $objectType->getResolveCallback(); |
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| 463 | } |
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| 464 | |||
| 465 | return $this->context->getFieldResolver() ?? self::$defaultFieldResolver; |
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| 466 | } |
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| 467 | |||
| 468 | /** |
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| 469 | * @param TypeInterface $returnType |
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| 470 | * @param FieldNode[] $fieldNodes |
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| 471 | * @param ResolveInfo $info |
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| 472 | * @param array $path |
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| 473 | * @param mixed $result |
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| 474 | * @return array|mixed |
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| 475 | * @throws InvariantException |
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| 476 | * @throws InvalidTypeException |
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| 477 | * @throws ExecutionException |
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| 478 | * @throws \Throwable |
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| 479 | */ |
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| 480 | protected function completeValue( |
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| 481 | TypeInterface $returnType, |
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| 482 | array $fieldNodes, |
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| 483 | ResolveInfo $info, |
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| 484 | array $path, |
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| 485 | &$result |
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| 486 | ) { |
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| 487 | if ($this->isPromise($result)) { |
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| 488 | /** @var ExtendedPromiseInterface $result */ |
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| 489 | return $result->then(function (&$value) use ($returnType, $fieldNodes, $info, $path) { |
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| 490 | return $this->completeValue($returnType, $fieldNodes, $info, $path, $value); |
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| 491 | }); |
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| 492 | } |
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| 493 | |||
| 494 | if ($result instanceof \Throwable) { |
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| 495 | throw $result; |
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| 496 | } |
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| 497 | |||
| 498 | // If result is null-like, return null. |
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| 499 | if (null === $result) { |
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| 500 | return null; |
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| 501 | } |
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| 502 | |||
| 503 | if ($returnType instanceof NonNullType) { |
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| 504 | $completed = $this->completeValue( |
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| 505 | $returnType->getOfType(), |
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| 506 | $fieldNodes, |
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| 507 | $info, |
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| 508 | $path, |
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| 509 | $result |
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| 510 | ); |
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| 511 | |||
| 512 | if ($completed === null) { |
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| 513 | throw new ExecutionException( |
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| 514 | \sprintf( |
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| 515 | 'Cannot return null for non-nullable field %s.%s.', |
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| 516 | $info->getParentType(), |
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| 517 | $info->getFieldName() |
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| 518 | ) |
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| 519 | ); |
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| 520 | } |
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| 521 | |||
| 522 | return $completed; |
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| 523 | } |
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| 524 | |||
| 525 | // If field type is List, complete each item in the list with the inner type |
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| 526 | if ($returnType instanceof ListType) { |
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| 527 | return $this->completeListValue($returnType, $fieldNodes, $info, $path, $result); |
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| 528 | } |
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| 529 | |||
| 530 | // If field type is Scalar or Enum, serialize to a valid value, returning |
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| 531 | // null if serialization is not possible. |
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| 532 | if ($returnType instanceof LeafTypeInterface) { |
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| 533 | return $this->completeLeafValue($returnType, $result); |
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| 534 | } |
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| 535 | |||
| 536 | // TODO: Make a function for checking abstract type? |
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| 537 | if ($returnType instanceof InterfaceType || $returnType instanceof UnionType) { |
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| 538 | return $this->completeAbstractValue($returnType, $fieldNodes, $info, $path, $result); |
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| 539 | } |
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| 540 | |||
| 541 | // Field type must be Object, Interface or Union and expect sub-selections. |
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| 542 | if ($returnType instanceof ObjectType) { |
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| 543 | return $this->completeObjectValue($returnType, $fieldNodes, $info, $path, $result); |
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| 544 | } |
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| 545 | |||
| 546 | throw new ExecutionException("Cannot complete value of unexpected type \"{$returnType}\"."); |
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| 547 | } |
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| 548 | |||
| 549 | /** |
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| 550 | * @param AbstractTypeInterface $returnType |
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| 551 | * @param FieldNode[] $fieldNodes |
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| 552 | * @param ResolveInfo $info |
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| 553 | * @param array $path |
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| 554 | * @param mixed $result |
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| 555 | * @return array|PromiseInterface |
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| 556 | * @throws ExecutionException |
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| 557 | * @throws InvalidTypeException |
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| 558 | * @throws InvariantException |
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| 559 | * @throws \Throwable |
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| 560 | */ |
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| 561 | protected function completeAbstractValue( |
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| 562 | AbstractTypeInterface $returnType, |
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| 563 | array $fieldNodes, |
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| 564 | ResolveInfo $info, |
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| 565 | array $path, |
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| 566 | &$result |
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| 567 | ) { |
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| 568 | $runtimeType = $returnType->resolveType($result, $this->context->getContextValue(), $info); |
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| 569 | |||
| 570 | if (null === $runtimeType) { |
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| 571 | // TODO: Display warning |
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| 572 | $runtimeType = $this->defaultTypeResolver($result, $this->context->getContextValue(), $info, $returnType); |
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| 573 | } |
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| 574 | |||
| 575 | if ($this->isPromise($runtimeType)) { |
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| 576 | /** @var ExtendedPromiseInterface $runtimeType */ |
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| 577 | return $runtimeType->then(function ($resolvedRuntimeType) use ( |
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| 578 | $returnType, |
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| 579 | $fieldNodes, |
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| 580 | $info, |
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| 581 | $path, |
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| 582 | &$result |
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| 583 | ) { |
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| 584 | return $this->completeObjectValue( |
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| 585 | $this->ensureValidRuntimeType($resolvedRuntimeType, $returnType, $info, $result), |
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| 586 | $fieldNodes, |
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| 587 | $info, |
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| 588 | $path, |
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| 589 | $result |
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| 590 | ); |
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| 591 | }); |
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| 592 | } |
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| 593 | |||
| 594 | return $this->completeObjectValue( |
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| 595 | $this->ensureValidRuntimeType($runtimeType, $returnType, $info, $result), |
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| 596 | $fieldNodes, |
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| 597 | $info, |
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| 598 | $path, |
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| 599 | $result |
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| 600 | ); |
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| 601 | } |
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| 602 | |||
| 603 | /** |
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| 604 | * @param NamedTypeInterface|string $runtimeTypeOrName |
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| 605 | * @param NamedTypeInterface $returnType |
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| 606 | * @param ResolveInfo $info |
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| 607 | * @param mixed $result |
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| 608 | * @return TypeInterface|ObjectType|null |
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| 609 | * @throws ExecutionException |
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| 610 | * @throws InvariantException |
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| 611 | */ |
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| 612 | protected function ensureValidRuntimeType( |
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| 613 | $runtimeTypeOrName, |
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| 614 | NamedTypeInterface $returnType, |
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| 615 | ResolveInfo $info, |
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| 616 | &$result |
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| 617 | ) { |
||
| 618 | /** @var NamedTypeInterface $runtimeType */ |
||
| 619 | $runtimeType = \is_string($runtimeTypeOrName) |
||
| 620 | ? $this->context->getSchema()->getType($runtimeTypeOrName) |
||
| 621 | : $runtimeTypeOrName; |
||
| 622 | |||
| 623 | $runtimeTypeName = $runtimeType->getName(); |
||
| 624 | $returnTypeName = $returnType->getName(); |
||
| 625 | |||
| 626 | if (!$runtimeType instanceof ObjectType) { |
||
| 627 | $parentTypeName = $info->getParentType()->getName(); |
||
| 628 | $fieldName = $info->getFieldName(); |
||
| 629 | |||
| 630 | throw new ExecutionException( |
||
| 631 | \sprintf( |
||
| 632 | 'Abstract type %s must resolve to an Object type at runtime for field %s.%s ' . |
||
| 633 | 'with value "%s", received "%s".', |
||
| 634 | $returnTypeName, |
||
| 635 | $parentTypeName, |
||
| 636 | $fieldName, |
||
| 637 | $result, |
||
| 638 | $runtimeTypeName |
||
| 639 | ) |
||
| 640 | ); |
||
| 641 | } |
||
| 642 | |||
| 643 | if (!$this->context->getSchema()->isPossibleType($returnType, $runtimeType)) { |
||
| 644 | throw new ExecutionException( |
||
| 645 | \sprintf('Runtime Object type "%s" is not a possible type for "%s".', $runtimeTypeName, $returnTypeName) |
||
| 646 | ); |
||
| 647 | } |
||
| 648 | |||
| 649 | if ($runtimeType !== $this->context->getSchema()->getType($runtimeType->getName())) { |
||
|
introduced
by
|
|||
| 650 | throw new ExecutionException( |
||
| 651 | \sprintf( |
||
| 652 | 'Schema must contain unique named types but contains multiple types named "%s". ' . |
||
| 653 | 'Make sure that `resolveType` function of abstract type "%s" returns the same ' . |
||
| 654 | 'type instance as referenced anywhere else within the schema.', |
||
| 655 | $runtimeTypeName, |
||
| 656 | $returnTypeName |
||
| 657 | ) |
||
| 658 | ); |
||
| 659 | } |
||
| 660 | |||
| 661 | return $runtimeType; |
||
| 662 | } |
||
| 663 | |||
| 664 | /** |
||
| 665 | * @param mixed $value |
||
| 666 | * @param mixed $context |
||
| 667 | * @param ResolveInfo $info |
||
| 668 | * @param AbstractTypeInterface $abstractType |
||
| 669 | * @return NamedTypeInterface|mixed|null |
||
| 670 | * @throws InvariantException |
||
| 671 | */ |
||
| 672 | protected function defaultTypeResolver( |
||
| 673 | $value, |
||
| 674 | $context, |
||
| 675 | ResolveInfo $info, |
||
| 676 | AbstractTypeInterface $abstractType |
||
| 677 | ) { |
||
| 678 | if (\is_array($value) && isset($value['__typename'])) { |
||
| 679 | return $value['__typename']; |
||
| 680 | } |
||
| 681 | |||
| 682 | /** @var ObjectType[] $possibleTypes */ |
||
| 683 | $possibleTypes = $info->getSchema()->getPossibleTypes($abstractType); |
||
| 684 | $promisedIsTypeOfResults = []; |
||
| 685 | |||
| 686 | foreach ($possibleTypes as $index => $type) { |
||
| 687 | $isTypeOfResult = $type->isTypeOf($value, $context, $info); |
||
| 688 | |||
| 689 | if ($this->isPromise($isTypeOfResult)) { |
||
| 690 | $promisedIsTypeOfResults[$index] = $isTypeOfResult; |
||
| 691 | continue; |
||
| 692 | } |
||
| 693 | |||
| 694 | if ($isTypeOfResult === true) { |
||
| 695 | return $type; |
||
| 696 | } |
||
| 697 | |||
| 698 | if (\is_array($value)) { |
||
| 699 | // TODO: Make `type` configurable |
||
| 700 | /** @noinspection NestedPositiveIfStatementsInspection */ |
||
| 701 | if (isset($value['type']) && $value['type'] === $type->getName()) { |
||
| 702 | return $type; |
||
| 703 | } |
||
| 704 | } |
||
| 705 | } |
||
| 706 | |||
| 707 | if (!empty($promisedIsTypeOfResults)) { |
||
| 708 | return promiseAll($promisedIsTypeOfResults) |
||
| 709 | ->then(function ($isTypeOfResults) use ($possibleTypes) { |
||
| 710 | /** @noinspection ForeachSourceInspection */ |
||
| 711 | foreach ($isTypeOfResults as $index => $result) { |
||
| 712 | if ($result) { |
||
| 713 | return $possibleTypes[$index]; |
||
| 714 | } |
||
| 715 | } |
||
| 716 | return null; |
||
| 717 | }); |
||
| 718 | } |
||
| 719 | |||
| 720 | return null; |
||
| 721 | } |
||
| 722 | |||
| 723 | /** |
||
| 724 | * @param ListType $returnType |
||
| 725 | * @param FieldNode[] $fieldNodes |
||
| 726 | * @param ResolveInfo $info |
||
| 727 | * @param array $path |
||
| 728 | * @param mixed $result |
||
| 729 | * @return array|\React\Promise\Promise |
||
| 730 | * @throws \Throwable |
||
| 731 | */ |
||
| 732 | protected function completeListValue( |
||
| 766 | } |
||
| 767 | |||
| 768 | /** |
||
| 769 | * @param LeafTypeInterface|SerializableTypeInterface $returnType |
||
| 770 | * @param mixed $result |
||
| 771 | * @return mixed |
||
| 772 | * @throws ExecutionException |
||
| 773 | */ |
||
| 774 | protected function completeLeafValue($returnType, &$result) |
||
| 775 | { |
||
| 776 | $serializedResult = $returnType->serialize($result); |
||
| 777 | |||
| 778 | if ($serializedResult === null) { |
||
| 779 | // TODO: Make a method for this type of exception |
||
| 780 | throw new ExecutionException( |
||
| 781 | \sprintf('Expected value of type "%s" but received: %s.', (string)$returnType, toString($result)) |
||
| 782 | ); |
||
| 783 | } |
||
| 784 | |||
| 785 | return $serializedResult; |
||
| 786 | } |
||
| 787 | |||
| 788 | /** |
||
| 789 | * @param ObjectType $returnType |
||
| 790 | * @param array $fieldNodes |
||
| 791 | * @param ResolveInfo $info |
||
| 792 | * @param array $path |
||
| 793 | * @param mixed $result |
||
| 794 | * @return array |
||
| 795 | * @throws ExecutionException |
||
| 796 | * @throws InvalidTypeException |
||
| 797 | * @throws InvariantException |
||
| 798 | * @throws \Throwable |
||
| 799 | */ |
||
| 800 | protected function completeObjectValue( |
||
| 801 | ObjectType $returnType, |
||
| 802 | array $fieldNodes, |
||
| 803 | ResolveInfo $info, |
||
| 804 | array $path, |
||
| 805 | &$result |
||
| 806 | ): array { |
||
| 807 | if (null !== $returnType->getIsTypeOf()) { |
||
| 808 | $isTypeOf = $returnType->isTypeOf($result, $this->context->getContextValue(), $info); |
||
| 809 | |||
| 810 | // TODO: Check for promise? |
||
| 811 | if (!$isTypeOf) { |
||
| 812 | throw new ExecutionException( |
||
| 813 | sprintf('Expected value of type "%s" but received: %s.', (string)$returnType, toString($result)) |
||
| 814 | ); |
||
| 815 | } |
||
| 816 | } |
||
| 817 | |||
| 818 | return $this->executeSubFields($returnType, $fieldNodes, $path, $result); |
||
| 819 | } |
||
| 820 | |||
| 821 | /** |
||
| 822 | * @param Field $field |
||
| 823 | * @param FieldNode $fieldNode |
||
| 824 | * @param callable $resolveCallback |
||
| 825 | * @param mixed $rootValue |
||
| 826 | * @param ExecutionContext $context |
||
| 827 | * @param ResolveInfo $info |
||
| 828 | * @return array|\Throwable |
||
| 829 | */ |
||
| 830 | protected function resolveFieldValueOrError( |
||
| 831 | Field $field, |
||
| 832 | FieldNode $fieldNode, |
||
| 833 | ?callable $resolveCallback, |
||
| 834 | $rootValue, |
||
| 835 | ExecutionContext $context, |
||
| 836 | ResolveInfo $info |
||
| 837 | ) { |
||
| 838 | try { |
||
| 839 | $result = $resolveCallback( |
||
| 840 | $rootValue, |
||
| 841 | coerceArgumentValues($field, $fieldNode, $context->getVariableValues()), |
||
| 842 | $context->getContextValue(), |
||
| 843 | $info |
||
| 844 | ); |
||
| 845 | } catch (\Throwable $error) { |
||
| 846 | return $error; |
||
| 847 | } |
||
| 848 | |||
| 849 | return $result; |
||
| 850 | } |
||
| 851 | |||
| 852 | /** |
||
| 853 | * @param ObjectType $returnType |
||
| 854 | * @param FieldNode[] $fieldNodes |
||
| 855 | * @param array $path |
||
| 856 | * @param mixed $result |
||
| 857 | * @return array |
||
| 858 | * @throws ExecutionException |
||
| 859 | * @throws InvalidTypeException |
||
| 860 | * @throws InvariantException |
||
| 861 | * @throws Throwable |
||
| 862 | */ |
||
| 863 | protected function executeSubFields( |
||
| 864 | ObjectType $returnType, |
||
| 865 | array $fieldNodes, |
||
| 866 | array $path, |
||
| 867 | &$result |
||
| 868 | ): array { |
||
| 869 | $subFields = []; |
||
| 870 | $visitedFragmentNames = []; |
||
| 871 | |||
| 872 | foreach ($fieldNodes as $fieldNode) { |
||
| 873 | if (null !== $fieldNode->getSelectionSet()) { |
||
| 874 | $subFields = $this->fieldCollector->collectFields( |
||
| 875 | $returnType, |
||
| 876 | $fieldNode->getSelectionSet(), |
||
| 877 | $subFields, |
||
| 878 | $visitedFragmentNames |
||
| 879 | ); |
||
| 880 | } |
||
| 881 | } |
||
| 882 | |||
| 883 | if (!empty($subFields)) { |
||
| 884 | return $this->executeFields($returnType, $result, $path, $subFields); |
||
| 885 | } |
||
| 886 | |||
| 887 | return $result; |
||
| 888 | } |
||
| 889 | |||
| 890 | /** |
||
| 891 | * @param mixed $value |
||
| 892 | * @return bool |
||
| 893 | */ |
||
| 894 | protected function isPromise($value): bool |
||
| 895 | { |
||
| 896 | return $value instanceof ExtendedPromiseInterface; |
||
| 897 | } |
||
| 898 | |||
| 899 | /** |
||
| 900 | * @param \Throwable $originalException |
||
| 901 | * @param array $nodes |
||
| 902 | * @param array $path |
||
| 903 | * @return ExecutionException |
||
| 904 | */ |
||
| 905 | protected function buildLocatedError( |
||
| 906 | \Throwable $originalException, |
||
| 907 | array $nodes = [], |
||
| 908 | array $path = [] |
||
| 909 | ): ExecutionException { |
||
| 910 | return new ExecutionException( |
||
| 911 | $originalException->getMessage(), |
||
| 912 | $originalException instanceof GraphQLException |
||
| 913 | ? $originalException->getNodes() |
||
| 914 | : $nodes, |
||
| 915 | $originalException instanceof GraphQLException |
||
| 916 | ? $originalException->getSource() |
||
| 917 | : null, |
||
| 918 | $originalException instanceof GraphQLException |
||
| 919 | ? $originalException->getPositions() |
||
| 920 | : null, |
||
| 921 | $originalException instanceof GraphQLException |
||
| 922 | ? ($originalException->getPath() ?? $path) |
||
| 923 | : $path, |
||
| 924 | null, |
||
| 925 | $originalException |
||
| 926 | ); |
||
| 927 | } |
||
| 928 | |||
| 929 | /** |
||
| 930 | * @param FieldNode[] $fieldNodes |
||
| 931 | * @param FieldNode $fieldNode |
||
| 932 | * @param Field $field |
||
| 933 | * @param ObjectType $parentType |
||
| 934 | * @param array|null $path |
||
| 935 | * @param ExecutionContext $context |
||
| 936 | * @return ResolveInfo |
||
| 937 | */ |
||
| 938 | protected function createResolveInfo( |
||
| 939 | array $fieldNodes, |
||
| 940 | FieldNode $fieldNode, |
||
| 941 | Field $field, |
||
| 942 | ObjectType $parentType, |
||
| 943 | ?array $path, |
||
| 944 | ExecutionContext $context |
||
| 945 | ): ResolveInfo { |
||
| 946 | return new ResolveInfo( |
||
| 947 | $fieldNode->getNameValue(), |
||
| 948 | $fieldNodes, |
||
| 949 | $field->getType(), |
||
| 950 | $parentType, |
||
| 951 | $path, |
||
| 952 | $context->getSchema(), |
||
| 953 | $context->getFragments(), |
||
| 954 | $context->getRootValue(), |
||
| 955 | $context->getOperation(), |
||
| 956 | $context->getVariableValues() |
||
| 957 | ); |
||
| 958 | } |
||
| 959 | |||
| 960 | /** |
||
| 961 | * @param ExecutionException $error |
||
| 962 | */ |
||
| 963 | protected function handleError(ExecutionException $error) |
||
| 967 | } |
||
| 968 | |||
| 969 | /** |
||
| 970 | * Try to resolve a field without any field resolver function. |
||
| 971 | * |
||
| 972 | * @param array|object $rootValue |
||
| 973 | * @param array $arguments |
||
| 974 | * @param mixed $contextValues |
||
| 975 | * @param ResolveInfo $info |
||
| 976 | * @return mixed|null |
||
| 977 | */ |
||
| 978 | public static function defaultFieldResolver($rootValue, array $arguments, $contextValues, ResolveInfo $info) |
||
| 979 | { |
||
| 980 | $fieldName = $info->getFieldName(); |
||
| 981 | $property = null; |
||
| 1001 | } |
||
| 1002 | } |
||
| 1003 |
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