Total Complexity | 100 |
Total Lines | 941 |
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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35 | class Executor |
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36 | { |
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37 | /** |
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38 | * @var ExecutionContext |
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39 | */ |
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40 | protected $context; |
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41 | |||
42 | /** |
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43 | * @var OperationDefinitionNode |
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44 | */ |
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45 | protected $operation; |
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46 | |||
47 | /** |
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48 | * @var mixed |
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49 | */ |
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50 | protected $rootValue; |
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51 | |||
52 | /** |
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53 | * @var FieldCollector |
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54 | */ |
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55 | protected $fieldCollector; |
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56 | |||
57 | /** |
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58 | * @var array |
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59 | */ |
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60 | protected $finalResult; |
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61 | |||
62 | /** |
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63 | * @var array |
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64 | */ |
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65 | private static $defaultFieldResolver = [__CLASS__, 'defaultFieldResolver']; |
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66 | |||
67 | /** |
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68 | * Executor constructor. |
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69 | * @param ExecutionContext $context |
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70 | * @param FieldCollector $fieldCollector |
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71 | */ |
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72 | public function __construct(ExecutionContext $context, FieldCollector $fieldCollector) |
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73 | { |
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74 | $this->context = $context; |
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75 | $this->fieldCollector = $fieldCollector; |
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76 | } |
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77 | |||
78 | /** |
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79 | * @return array|null |
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80 | * @throws ExecutionException |
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81 | * @throws \Throwable |
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82 | */ |
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83 | public function execute(): ?array |
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113 | } |
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114 | |||
115 | /** |
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116 | * @param Schema $schema |
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117 | * @param OperationDefinitionNode $operation |
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118 | * @return NamedTypeInterface|ObjectType |
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119 | * @throws ExecutionException |
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120 | */ |
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121 | public function getOperationType(Schema $schema, OperationDefinitionNode $operation): NamedTypeInterface |
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122 | { |
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123 | switch ($operation->getOperation()) { |
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124 | case 'query': |
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125 | return $schema->getQueryType(); |
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126 | case 'mutation': |
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127 | $mutationType = $schema->getMutationType(); |
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128 | if (null === $mutationType) { |
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129 | throw new ExecutionException( |
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130 | 'Schema is not configured for mutations', |
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131 | [$operation] |
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132 | ); |
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133 | } |
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134 | return $mutationType; |
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135 | case 'subscription': |
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136 | $subscriptionType = $schema->getSubscriptionType(); |
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137 | if (null === $subscriptionType) { |
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138 | throw new ExecutionException( |
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139 | 'Schema is not configured for subscriptions', |
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140 | [$operation] |
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141 | ); |
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142 | } |
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143 | return $subscriptionType; |
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144 | default: |
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145 | throw new ExecutionException( |
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146 | 'Can only execute queries, mutations and subscriptions', |
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147 | [$operation] |
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148 | ); |
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149 | } |
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150 | } |
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151 | |||
152 | /** |
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153 | * Implements the "Evaluating selection sets" section of the spec for "write" mode. |
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154 | * |
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155 | * @param ObjectType $objectType |
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156 | * @param mixed $rootValue |
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157 | * @param array $path |
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158 | * @param array $fields |
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159 | * @return array |
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160 | * @throws InvalidArgumentException |
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161 | * @throws Throwable |
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162 | */ |
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163 | public function executeFieldsSerially( |
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164 | ObjectType $objectType, |
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165 | $rootValue, |
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166 | array $path, |
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167 | array $fields |
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168 | ): array { |
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169 | $finalResults = []; |
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170 | |||
171 | $promise = new FulfilledPromise([]); |
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172 | |||
173 | $resolve = function ($results, $fieldName, $path, $objectType, $rootValue, $fieldNodes) { |
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174 | $fieldPath = $path; |
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175 | $fieldPath[] = $fieldName; |
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176 | try { |
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177 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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178 | } catch (UndefinedException $ex) { |
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179 | return null; |
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180 | } |
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181 | |||
182 | if ($this->isPromise($result)) { |
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183 | /** @var ExtendedPromiseInterface $result */ |
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184 | return $result->then(function ($resolvedResult) use ($fieldName, $results) { |
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185 | $results[$fieldName] = $resolvedResult; |
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186 | return $results; |
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187 | }); |
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188 | } |
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189 | |||
190 | $results[$fieldName] = $result; |
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191 | |||
192 | return $results; |
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193 | }; |
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194 | |||
195 | foreach ($fields as $fieldName => $fieldNodes) { |
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196 | $promise = $promise->then(function ($resolvedResults) use ( |
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197 | $resolve, |
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198 | $fieldName, |
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199 | $path, |
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200 | $objectType, |
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201 | $rootValue, |
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202 | $fieldNodes |
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203 | ) { |
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204 | return $resolve($resolvedResults, $fieldName, $path, $objectType, $rootValue, $fieldNodes); |
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205 | }); |
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206 | } |
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207 | |||
208 | $promise->then(function ($resolvedResults) use (&$finalResults) { |
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209 | $finalResults = $resolvedResults ?? []; |
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210 | }); |
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211 | |||
212 | return $finalResults; |
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213 | } |
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214 | |||
215 | /** |
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216 | * @param Schema $schema |
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217 | * @param ObjectType $parentType |
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218 | * @param string $fieldName |
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219 | * @return Field|null |
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220 | */ |
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221 | public function getFieldDefinition( |
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222 | Schema $schema, |
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223 | ObjectType $parentType, |
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224 | string $fieldName |
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225 | ): ?Field { |
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226 | $schemaMetaFieldDefinition = SchemaMetaFieldDefinition(); |
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227 | $typeMetaFieldDefinition = TypeMetaFieldDefinition(); |
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228 | $typeNameMetaFieldDefinition = TypeNameMetaFieldDefinition(); |
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229 | |||
230 | if ($fieldName === $schemaMetaFieldDefinition->getName() && $schema->getQueryType() === $parentType) { |
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231 | return $schemaMetaFieldDefinition; |
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232 | } |
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233 | |||
234 | if ($fieldName === $typeMetaFieldDefinition->getName() && $schema->getQueryType() === $parentType) { |
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235 | return $typeMetaFieldDefinition; |
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236 | } |
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237 | |||
238 | if ($fieldName === $typeNameMetaFieldDefinition->getName()) { |
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239 | return $typeNameMetaFieldDefinition; |
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240 | } |
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241 | |||
242 | $fields = $parentType->getFields(); |
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243 | |||
244 | return $fields[$fieldName] ?? null; |
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245 | } |
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246 | |||
247 | /** |
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248 | * @param TypeInterface $fieldType |
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249 | * @param FieldNode[] $fieldNodes |
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250 | * @param ResolveInfo $info |
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251 | * @param array $path |
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252 | * @param mixed $result |
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253 | * @return array|mixed|null |
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254 | * @throws \Throwable |
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255 | */ |
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256 | public function completeValueCatchingError( |
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257 | TypeInterface $fieldType, |
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258 | array $fieldNodes, |
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259 | ResolveInfo $info, |
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260 | array $path, |
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261 | &$result |
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262 | ) { |
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263 | if ($fieldType instanceof NonNullType) { |
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264 | return $this->completeValueWithLocatedError( |
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265 | $fieldType, |
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266 | $fieldNodes, |
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267 | $info, |
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268 | $path, |
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269 | $result |
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270 | ); |
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271 | } |
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272 | |||
273 | try { |
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274 | $completed = $this->completeValueWithLocatedError( |
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275 | $fieldType, |
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276 | $fieldNodes, |
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277 | $info, |
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278 | $path, |
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279 | $result |
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280 | ); |
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281 | |||
282 | if ($this->isPromise($completed)) { |
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283 | $context = $this->context; |
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284 | /** @var ExtendedPromiseInterface $completed */ |
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285 | return $completed->then(null, function ($error) use ($context, $fieldNodes, $path) { |
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286 | //@TODO Handle $error better |
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287 | if ($error instanceof \Exception) { |
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288 | $context->addError($this->buildLocatedError($error, $fieldNodes, $path)); |
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289 | } else { |
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290 | $context->addError( |
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291 | $this->buildLocatedError( |
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292 | new ExecutionException($error ?? 'An unknown error occurred.'), |
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293 | $fieldNodes, |
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294 | $path |
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295 | ) |
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296 | ); |
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297 | } |
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298 | return new FulfilledPromise(null); |
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299 | }); |
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300 | } |
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301 | |||
302 | return $completed; |
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303 | } catch (\Exception $ex) { |
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304 | $this->context->addError($this->buildLocatedError($ex, $fieldNodes, $path)); |
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305 | return null; |
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306 | } |
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307 | } |
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308 | |||
309 | |||
310 | /** |
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311 | * @param TypeInterface $fieldType |
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312 | * @param FieldNode[] $fieldNodes |
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313 | * @param ResolveInfo $info |
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314 | * @param array $path |
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315 | * @param mixed $result |
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316 | * @return array|mixed |
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317 | * @throws \Throwable |
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318 | */ |
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319 | public function completeValueWithLocatedError( |
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320 | TypeInterface $fieldType, |
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321 | array $fieldNodes, |
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322 | ResolveInfo $info, |
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323 | array $path, |
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324 | $result |
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325 | ) { |
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326 | try { |
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327 | $completed = $this->completeValue( |
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328 | $fieldType, |
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329 | $fieldNodes, |
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330 | $info, |
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331 | $path, |
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332 | $result |
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333 | ); |
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334 | |||
335 | return $completed; |
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336 | } catch (\Throwable $ex) { |
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337 | throw $this->buildLocatedError($ex, $fieldNodes, $path); |
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338 | } |
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339 | } |
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340 | |||
341 | /** |
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342 | * Implements the "Evaluating selection sets" section of the spec for "read" mode. |
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343 | * |
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344 | * @param ObjectType $objectType |
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345 | * @param mixed $rootValue |
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346 | * @param array $path |
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347 | * @param array $fields |
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348 | * @return array |
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349 | * @throws \Throwable |
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350 | */ |
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351 | protected function executeFields( |
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352 | ObjectType $objectType, |
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353 | $rootValue, |
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354 | array $path, |
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355 | array $fields |
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356 | ): array { |
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357 | $finalResults = []; |
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358 | $doesContainPromise = false; |
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359 | |||
360 | foreach ($fields as $fieldName => $fieldNodes) { |
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361 | $fieldPath = $path; |
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362 | $fieldPath[] = $fieldName; |
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363 | |||
364 | try { |
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365 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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366 | } catch (UndefinedException $ex) { |
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367 | continue; |
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368 | } |
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369 | |||
370 | $doesContainPromise = $doesContainPromise || $this->isPromise($result); |
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371 | |||
372 | $finalResults[$fieldName] = $result; |
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373 | } |
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374 | |||
375 | if ($doesContainPromise) { |
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376 | $keys = \array_keys($finalResults); |
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377 | $promise = promiseAll(\array_values($finalResults)); |
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378 | $promise->then(function ($values) use ($keys, &$finalResults) { |
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379 | /** @noinspection ForeachSourceInspection */ |
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380 | foreach ($values as $i => $value) { |
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381 | $finalResults[$keys[$i]] = $value; |
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382 | } |
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383 | }); |
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384 | } |
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385 | |||
386 | return $finalResults; |
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387 | } |
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388 | |||
389 | /** |
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390 | * @param ObjectType $parentType |
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391 | * @param mixed $rootValue |
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392 | * @param FieldNode[] $fieldNodes |
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393 | * @param array $path |
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394 | * @return array|mixed|null |
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395 | * @throws UndefinedException |
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396 | * @throws Throwable |
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397 | */ |
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398 | protected function resolveField( |
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399 | ObjectType $parentType, |
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400 | $rootValue, |
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401 | array $fieldNodes, |
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402 | array $path |
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403 | ) { |
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404 | /** @var FieldNode $fieldNode */ |
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405 | $fieldNode = $fieldNodes[0]; |
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406 | |||
407 | $field = $this->getFieldDefinition($this->context->getSchema(), $parentType, $fieldNode->getNameValue()); |
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408 | |||
409 | if (null === $field) { |
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410 | throw new UndefinedException('Undefined field definition.'); |
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411 | } |
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412 | |||
413 | $info = $this->createResolveInfo($fieldNodes, $fieldNode, $field, $parentType, $path, $this->context); |
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414 | |||
415 | $resolveCallback = $this->determineResolveCallback($field, $parentType); |
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416 | |||
417 | $result = $this->resolveFieldValueOrError( |
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418 | $field, |
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419 | $fieldNode, |
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420 | $resolveCallback, |
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421 | $rootValue, |
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422 | $this->context, |
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423 | $info |
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424 | ); |
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425 | |||
426 | $result = $this->completeValueCatchingError( |
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427 | $field->getType(), |
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428 | $fieldNodes, |
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429 | $info, |
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430 | $path, |
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431 | $result |
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432 | ); |
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433 | |||
434 | return $result; |
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435 | } |
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436 | |||
437 | /** |
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438 | * @param Field $field |
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439 | * @param ObjectType $objectType |
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440 | * @return callable|mixed|null |
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441 | */ |
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442 | protected function determineResolveCallback(Field $field, ObjectType $objectType) |
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443 | { |
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444 | if ($field->hasResolveCallback()) { |
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445 | return $field->getResolveCallback(); |
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446 | } |
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447 | |||
448 | if ($objectType->hasResolveCallback()) { |
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449 | return $objectType->getResolveCallback(); |
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450 | } |
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451 | |||
452 | return $this->context->getFieldResolver() ?? self::$defaultFieldResolver; |
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453 | } |
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454 | |||
455 | /** |
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456 | * @param TypeInterface $returnType |
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457 | * @param FieldNode[] $fieldNodes |
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458 | * @param ResolveInfo $info |
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459 | * @param array $path |
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460 | * @param mixed $result |
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461 | * @return array|mixed |
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462 | * @throws InvariantException |
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463 | * @throws InvalidTypeException |
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464 | * @throws ExecutionException |
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465 | * @throws \Throwable |
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466 | */ |
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467 | protected function completeValue( |
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468 | TypeInterface $returnType, |
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469 | array $fieldNodes, |
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470 | ResolveInfo $info, |
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471 | array $path, |
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472 | &$result |
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473 | ) { |
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474 | if ($this->isPromise($result)) { |
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475 | /** @var ExtendedPromiseInterface $result */ |
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476 | return $result->then(function (&$value) use ($returnType, $fieldNodes, $info, $path) { |
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477 | return $this->completeValue($returnType, $fieldNodes, $info, $path, $value); |
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478 | }); |
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479 | } |
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480 | |||
481 | if ($result instanceof \Throwable) { |
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482 | throw $result; |
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483 | } |
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484 | |||
485 | // If result is null-like, return null. |
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486 | if (null === $result) { |
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487 | return null; |
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488 | } |
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489 | |||
490 | if ($returnType instanceof NonNullType) { |
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491 | $completed = $this->completeValue( |
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492 | $returnType->getOfType(), |
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493 | $fieldNodes, |
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494 | $info, |
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495 | $path, |
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496 | $result |
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497 | ); |
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498 | |||
499 | if ($completed === null) { |
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500 | throw new ExecutionException( |
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501 | \sprintf( |
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502 | 'Cannot return null for non-nullable field %s.%s.', |
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503 | $info->getParentType(), |
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504 | $info->getFieldName() |
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505 | ) |
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506 | ); |
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507 | } |
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508 | |||
509 | return $completed; |
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510 | } |
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511 | |||
512 | // If field type is List, complete each item in the list with the inner type |
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513 | if ($returnType instanceof ListType) { |
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514 | return $this->completeListValue($returnType, $fieldNodes, $info, $path, $result); |
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515 | } |
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516 | |||
517 | // If field type is Scalar or Enum, serialize to a valid value, returning |
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518 | // null if serialization is not possible. |
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519 | if ($returnType instanceof LeafTypeInterface) { |
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520 | return $this->completeLeafValue($returnType, $result); |
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521 | } |
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522 | |||
523 | // TODO: Make a function for checking abstract type? |
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524 | if ($returnType instanceof InterfaceType || $returnType instanceof UnionType) { |
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525 | return $this->completeAbstractValue($returnType, $fieldNodes, $info, $path, $result); |
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526 | } |
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527 | |||
528 | // Field type must be Object, Interface or Union and expect sub-selections. |
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529 | if ($returnType instanceof ObjectType) { |
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530 | return $this->completeObjectValue($returnType, $fieldNodes, $info, $path, $result); |
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531 | } |
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532 | |||
533 | throw new ExecutionException("Cannot complete value of unexpected type \"{$returnType}\"."); |
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534 | } |
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535 | |||
536 | /** |
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537 | * @param AbstractTypeInterface $returnType |
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538 | * @param FieldNode[] $fieldNodes |
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539 | * @param ResolveInfo $info |
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540 | * @param array $path |
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541 | * @param mixed $result |
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542 | * @return array|PromiseInterface |
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543 | * @throws ExecutionException |
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544 | * @throws InvalidTypeException |
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545 | * @throws InvariantException |
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546 | * @throws \Throwable |
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547 | */ |
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548 | protected function completeAbstractValue( |
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549 | AbstractTypeInterface $returnType, |
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550 | array $fieldNodes, |
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551 | ResolveInfo $info, |
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552 | array $path, |
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553 | &$result |
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554 | ) { |
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555 | $runtimeType = $returnType->resolveType($result, $this->context->getContextValue(), $info); |
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556 | |||
557 | if (null === $runtimeType) { |
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558 | // TODO: Display warning |
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559 | $runtimeType = $this->defaultTypeResolver($result, $this->context->getContextValue(), $info, $returnType); |
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560 | } |
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561 | |||
562 | if ($this->isPromise($runtimeType)) { |
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563 | /** @var ExtendedPromiseInterface $runtimeType */ |
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564 | return $runtimeType->then(function ($resolvedRuntimeType) use ( |
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565 | $returnType, |
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566 | $fieldNodes, |
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567 | $info, |
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568 | $path, |
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569 | &$result |
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570 | ) { |
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571 | return $this->completeObjectValue( |
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572 | $this->ensureValidRuntimeType($resolvedRuntimeType, $returnType, $info, $result), |
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573 | $fieldNodes, |
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574 | $info, |
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575 | $path, |
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576 | $result |
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577 | ); |
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578 | }); |
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579 | } |
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580 | |||
581 | return $this->completeObjectValue( |
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582 | $this->ensureValidRuntimeType($runtimeType, $returnType, $info, $result), |
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583 | $fieldNodes, |
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584 | $info, |
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585 | $path, |
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586 | $result |
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587 | ); |
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588 | } |
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589 | |||
590 | /** |
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591 | * @param NamedTypeInterface|string $runtimeTypeOrName |
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592 | * @param AbstractTypeInterface $returnType |
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593 | * @param ResolveInfo $info |
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594 | * @param mixed $result |
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595 | * @return TypeInterface|ObjectType|null |
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596 | * @throws ExecutionException |
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597 | * @throws InvariantException |
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598 | */ |
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599 | protected function ensureValidRuntimeType( |
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600 | $runtimeTypeOrName, |
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601 | AbstractTypeInterface $returnType, |
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602 | ResolveInfo $info, |
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603 | &$result |
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604 | ) { |
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605 | /** @var NamedTypeInterface $runtimeType */ |
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606 | $runtimeType = \is_string($runtimeTypeOrName) |
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607 | ? $this->context->getSchema()->getType($runtimeTypeOrName) |
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608 | : $runtimeTypeOrName; |
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609 | |||
610 | $runtimeTypeName = $runtimeType->getName(); |
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611 | $returnTypeName = $returnType->getName(); |
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612 | |||
613 | if (!$runtimeType instanceof ObjectType) { |
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614 | $parentTypeName = $info->getParentType()->getName(); |
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615 | $fieldName = $info->getFieldName(); |
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616 | |||
617 | throw new ExecutionException( |
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618 | \sprintf( |
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619 | 'Abstract type %s must resolve to an Object type at runtime for field %s.%s ' . |
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620 | 'with value "%s", received "%s".', |
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621 | $returnTypeName, |
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622 | $parentTypeName, |
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623 | $fieldName, |
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624 | $result, |
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625 | $runtimeTypeName |
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626 | ) |
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627 | ); |
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628 | } |
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629 | |||
630 | if (!$this->context->getSchema()->isPossibleType($returnType, $runtimeType)) { |
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631 | throw new ExecutionException( |
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632 | \sprintf('Runtime Object type "%s" is not a possible type for "%s".', $runtimeTypeName, $returnTypeName) |
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633 | ); |
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634 | } |
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635 | |||
636 | if ($runtimeType !== $this->context->getSchema()->getType($runtimeType->getName())) { |
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637 | throw new ExecutionException( |
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638 | \sprintf( |
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639 | 'Schema must contain unique named types but contains multiple types named "%s". ' . |
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640 | 'Make sure that `resolveType` function of abstract type "%s" returns the same ' . |
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641 | 'type instance as referenced anywhere else within the schema.', |
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642 | $runtimeTypeName, |
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643 | $returnTypeName |
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644 | ) |
||
645 | ); |
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646 | } |
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647 | |||
648 | return $runtimeType; |
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649 | } |
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650 | |||
651 | /** |
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652 | * @param mixed $value |
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653 | * @param mixed $context |
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654 | * @param ResolveInfo $info |
||
655 | * @param AbstractTypeInterface $abstractType |
||
656 | * @return NamedTypeInterface|mixed|null |
||
657 | * @throws InvariantException |
||
658 | */ |
||
659 | protected function defaultTypeResolver( |
||
660 | $value, |
||
661 | $context, |
||
662 | ResolveInfo $info, |
||
663 | AbstractTypeInterface $abstractType |
||
664 | ) { |
||
665 | /** @var ObjectType[] $possibleTypes */ |
||
666 | $possibleTypes = $info->getSchema()->getPossibleTypes($abstractType); |
||
667 | $promisedIsTypeOfResults = []; |
||
668 | |||
669 | foreach ($possibleTypes as $index => $type) { |
||
670 | $isTypeOfResult = $type->isTypeOf($value, $context, $info); |
||
671 | if (null !== $isTypeOfResult) { |
||
672 | if ($this->isPromise($isTypeOfResult)) { |
||
673 | $promisedIsTypeOfResults[$index] = $isTypeOfResult; |
||
674 | continue; |
||
675 | } |
||
676 | |||
677 | if ($isTypeOfResult === true) { |
||
678 | return $type; |
||
679 | } |
||
680 | |||
681 | if (\is_array($value)) { |
||
682 | // TODO: Make `type` configurable |
||
683 | /** @noinspection NestedPositiveIfStatementsInspection */ |
||
684 | if (isset($value['type']) && $value['type'] === $type->getName()) { |
||
685 | return $type; |
||
686 | } |
||
687 | } |
||
688 | } |
||
689 | } |
||
690 | |||
691 | if (!empty($promisedIsTypeOfResults)) { |
||
692 | return promiseAll($promisedIsTypeOfResults) |
||
693 | ->then(function ($isTypeOfResults) use ($possibleTypes) { |
||
694 | /** @noinspection ForeachSourceInspection */ |
||
695 | foreach ($isTypeOfResults as $index => $result) { |
||
696 | if ($result) { |
||
697 | return $possibleTypes[$index]; |
||
698 | } |
||
699 | } |
||
700 | return null; |
||
701 | }); |
||
702 | } |
||
703 | |||
704 | return null; |
||
705 | } |
||
706 | |||
707 | /** |
||
708 | * @param ListType $returnType |
||
709 | * @param FieldNode[] $fieldNodes |
||
710 | * @param ResolveInfo $info |
||
711 | * @param array $path |
||
712 | * @param mixed $result |
||
713 | * @return array|\React\Promise\Promise |
||
714 | * @throws \Throwable |
||
715 | */ |
||
716 | protected function completeListValue( |
||
750 | } |
||
751 | |||
752 | /** |
||
753 | * @param LeafTypeInterface $returnType |
||
754 | * @param mixed $result |
||
755 | * @return mixed |
||
756 | * @throws ExecutionException |
||
757 | */ |
||
758 | protected function completeLeafValue(LeafTypeInterface $returnType, &$result) |
||
759 | { |
||
760 | /** @var ScalarType $returnType */ |
||
761 | $serializedResult = $returnType->serialize($result); |
||
762 | |||
763 | if ($serializedResult === null) { |
||
764 | // TODO: Make a function for this type of exception |
||
765 | throw new ExecutionException( |
||
766 | \sprintf('Expected value of type "%s" but received: %s.', (string)$returnType, toString($result)) |
||
767 | ); |
||
768 | } |
||
769 | |||
770 | return $serializedResult; |
||
771 | } |
||
772 | |||
773 | /** |
||
774 | * @param ObjectType $returnType |
||
775 | * @param array $fieldNodes |
||
776 | * @param ResolveInfo $info |
||
777 | * @param array $path |
||
778 | * @param mixed $result |
||
779 | * @return array |
||
780 | * @throws ExecutionException |
||
781 | * @throws InvalidTypeException |
||
782 | * @throws InvariantException |
||
783 | * @throws \Throwable |
||
784 | */ |
||
785 | protected function completeObjectValue( |
||
804 | } |
||
805 | |||
806 | /** |
||
807 | * @param Field $field |
||
808 | * @param FieldNode $fieldNode |
||
809 | * @param callable $resolveCallback |
||
810 | * @param mixed $rootValue |
||
811 | * @param ExecutionContext $context |
||
812 | * @param ResolveInfo $info |
||
813 | * @return array|\Throwable |
||
814 | */ |
||
815 | protected function resolveFieldValueOrError( |
||
816 | Field $field, |
||
817 | FieldNode $fieldNode, |
||
818 | ?callable $resolveCallback, |
||
819 | $rootValue, |
||
820 | ExecutionContext $context, |
||
821 | ResolveInfo $info |
||
822 | ) { |
||
823 | try { |
||
824 | $result = $resolveCallback( |
||
825 | $rootValue, |
||
826 | coerceArgumentValues($field, $fieldNode, $context->getVariableValues()), |
||
827 | $context->getContextValue(), |
||
828 | $info |
||
829 | ); |
||
830 | } catch (\Throwable $error) { |
||
831 | return $error; |
||
832 | } |
||
833 | |||
834 | return $result; |
||
835 | } |
||
836 | |||
837 | /** |
||
838 | * @param ObjectType $returnType |
||
839 | * @param FieldNode[] $fieldNodes |
||
840 | * @param array $path |
||
841 | * @param mixed $result |
||
842 | * @return array |
||
843 | * @throws ExecutionException |
||
844 | * @throws InvalidTypeException |
||
845 | * @throws InvariantException |
||
846 | * @throws Throwable |
||
847 | */ |
||
848 | protected function executeSubFields( |
||
849 | ObjectType $returnType, |
||
850 | array $fieldNodes, |
||
851 | array $path, |
||
852 | &$result |
||
853 | ): array { |
||
854 | $subFields = []; |
||
855 | $visitedFragmentNames = []; |
||
856 | |||
857 | foreach ($fieldNodes as $fieldNode) { |
||
858 | if (null !== $fieldNode->getSelectionSet()) { |
||
859 | $subFields = $this->fieldCollector->collectFields( |
||
860 | $returnType, |
||
861 | $fieldNode->getSelectionSet(), |
||
862 | $subFields, |
||
863 | $visitedFragmentNames |
||
864 | ); |
||
865 | } |
||
866 | } |
||
867 | |||
868 | if (!empty($subFields)) { |
||
869 | return $this->executeFields($returnType, $result, $path, $subFields); |
||
870 | } |
||
871 | |||
872 | return $result; |
||
873 | } |
||
874 | |||
875 | /** |
||
876 | * @param $value |
||
877 | * @return bool |
||
878 | */ |
||
879 | protected function isPromise($value): bool |
||
880 | { |
||
881 | return $value instanceof ExtendedPromiseInterface; |
||
882 | } |
||
883 | |||
884 | /** |
||
885 | * @param \Throwable $originalException |
||
886 | * @param array $nodes |
||
887 | * @param array $path |
||
888 | * @return ExecutionException |
||
889 | */ |
||
890 | protected function buildLocatedError( |
||
910 | ); |
||
911 | } |
||
912 | |||
913 | /** |
||
914 | * @param FieldNode[] $fieldNodes |
||
915 | * @param FieldNode $fieldNode |
||
916 | * @param Field $field |
||
917 | * @param ObjectType $parentType |
||
918 | * @param array|null $path |
||
919 | * @param ExecutionContext $context |
||
920 | * @return ResolveInfo |
||
921 | */ |
||
922 | protected function createResolveInfo( |
||
941 | ); |
||
942 | } |
||
943 | |||
944 | /** |
||
945 | * Try to resolve a field without any field resolver function. |
||
946 | * |
||
947 | * @param array|object $rootValue |
||
948 | * @param array $arguments |
||
949 | * @param mixed $contextValues |
||
950 | * @param ResolveInfo $info |
||
951 | * @return mixed|null |
||
952 | */ |
||
953 | public static function defaultFieldResolver($rootValue, array $arguments, $contextValues, ResolveInfo $info) |
||
976 | } |
||
977 | } |
||
978 |