digiaonline /
graphql-php
| Total Complexity | 42 |
| Total Lines | 381 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like ExtensionContext 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 ExtensionContext, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 30 | class ExtensionContext implements ExtensionContextInterface |
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| 31 | { |
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| 32 | /** |
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| 33 | * @var ExtendInfo |
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| 34 | */ |
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| 35 | protected $info; |
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| 36 | |||
| 37 | /** |
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| 38 | * @var DefinitionBuilderInterface |
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| 39 | */ |
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| 40 | protected $definitionBuilder; |
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| 41 | |||
| 42 | /** |
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| 43 | * @var NamedTypeInterface[] |
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| 44 | */ |
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| 45 | protected $extendTypeCache = []; |
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| 46 | |||
| 47 | /** |
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| 48 | * ExtensionContext constructor. |
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| 49 | * @param ExtendInfo $info |
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| 50 | */ |
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| 51 | public function __construct(ExtendInfo $info) |
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| 52 | { |
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| 53 | $this->info = $info; |
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| 54 | } |
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| 55 | |||
| 56 | /** |
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| 57 | * @return bool |
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| 58 | */ |
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| 59 | public function isSchemaExtended(): bool |
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| 60 | { |
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| 61 | return |
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| 62 | $this->info->hasTypeExtensionsMap() || |
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| 63 | $this->info->hasTypeDefinitionMap() || |
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| 64 | $this->info->hasDirectiveDefinitions(); |
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| 65 | } |
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| 66 | |||
| 67 | /** |
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| 68 | * @return TypeInterface|null |
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| 69 | * @throws InvalidArgumentException |
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| 70 | * @throws InvariantException |
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| 71 | */ |
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| 72 | public function getExtendedQueryType(): ?TypeInterface |
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| 73 | { |
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| 74 | $existingQueryType = $this->info->getSchema()->getQueryType(); |
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| 75 | |||
| 76 | return null !== $existingQueryType |
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| 77 | ? $this->getExtendedType($existingQueryType) |
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| 78 | : null; |
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| 79 | } |
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| 80 | |||
| 81 | /** |
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| 82 | * @return TypeInterface|null |
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| 83 | * @throws InvalidArgumentException |
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| 84 | * @throws InvariantException |
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| 85 | */ |
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| 86 | public function getExtendedMutationType(): ?TypeInterface |
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| 87 | { |
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| 88 | $existingMutationType = $this->info->getSchema()->getMutationType(); |
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| 89 | |||
| 90 | return null !== $existingMutationType |
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| 91 | ? $this->getExtendedType($existingMutationType) |
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| 92 | : null; |
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| 93 | } |
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| 94 | |||
| 95 | /** |
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| 96 | * @return TypeInterface|null |
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| 97 | * @throws InvalidArgumentException |
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| 98 | * @throws InvariantException |
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| 99 | */ |
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| 100 | public function getExtendedSubscriptionType(): ?TypeInterface |
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| 101 | { |
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| 102 | $existingSubscriptionType = $this->info->getSchema()->getSubscriptionType(); |
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| 103 | |||
| 104 | return null !== $existingSubscriptionType |
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| 105 | ? $this->getExtendedType($existingSubscriptionType) |
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| 106 | : null; |
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| 107 | } |
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| 108 | |||
| 109 | /** |
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| 110 | * @return TypeInterface[] |
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| 111 | */ |
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| 112 | public function getExtendedTypes(): array |
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| 121 | ); |
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| 122 | } |
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| 123 | |||
| 124 | /** |
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| 125 | * @return Directive[] |
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| 126 | * @throws InvariantException |
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| 127 | */ |
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| 128 | public function getExtendedDirectives(): array |
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| 139 | ); |
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| 140 | } |
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| 141 | |||
| 142 | /** |
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| 143 | * @param DefinitionBuilderInterface $definitionBuilder |
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| 144 | * @return ExtensionContext |
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| 145 | */ |
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| 146 | public function setDefinitionBuilder(DefinitionBuilderInterface $definitionBuilder): ExtensionContext |
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| 147 | { |
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| 148 | $this->definitionBuilder = $definitionBuilder; |
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| 149 | return $this; |
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| 150 | } |
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| 151 | |||
| 152 | /** |
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| 153 | * @param NamedTypeNode $node |
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| 154 | * @return TypeInterface|null |
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| 155 | * @throws ExtensionException |
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| 156 | * @throws InvalidArgumentException |
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| 157 | * @throws InvariantException |
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| 158 | */ |
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| 159 | public function resolveType(NamedTypeNode $node): ?TypeInterface |
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| 160 | { |
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| 161 | $typeName = $node->getNameValue(); |
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| 162 | $existingType = $this->info->getSchema()->getType($typeName); |
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| 163 | |||
| 164 | if (null !== $existingType) { |
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| 165 | return $this->getExtendedType($existingType); |
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| 166 | } |
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| 167 | |||
| 168 | throw new ExtensionException( |
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| 169 | \sprintf( |
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| 170 | 'Unknown type: "%s". Ensure that this type exists ' . |
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| 171 | 'either in the original schema, or is added in a type definition.', |
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| 172 | $typeName |
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| 173 | ), |
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| 174 | [$node] |
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| 175 | ); |
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| 176 | } |
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| 177 | |||
| 178 | /** |
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| 179 | * @param TypeInterface $type |
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| 180 | * @return TypeInterface |
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| 181 | * @throws InvalidArgumentException |
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| 182 | * @throws InvariantException |
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| 183 | */ |
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| 184 | protected function getExtendedType(TypeInterface $type): TypeInterface |
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| 185 | { |
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| 186 | /** @noinspection PhpUndefinedMethodInspection */ |
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| 187 | $typeName = $type->getName(); |
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|
Bug
introduced
by
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| 188 | |||
| 189 | if (!isset($this->extendTypeCache[$typeName])) { |
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| 190 | $this->extendTypeCache[$typeName] = $this->extendType($type); |
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| 191 | } |
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| 192 | |||
| 193 | return $this->extendTypeCache[$typeName]; |
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| 194 | } |
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| 195 | |||
| 196 | /** |
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| 197 | * @param TypeInterface $type |
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| 198 | * @return TypeInterface |
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| 199 | * @throws InvariantException |
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| 200 | */ |
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| 201 | protected function extendType(TypeInterface $type): TypeInterface |
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| 202 | { |
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| 203 | /** @noinspection PhpParamsInspection */ |
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| 204 | if (isIntrospectionType($type)) { |
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| 205 | // Introspection types are not extended. |
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| 206 | return $type; |
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| 207 | } |
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| 208 | |||
| 209 | if ($type instanceof ObjectType) { |
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| 210 | return $this->extendObjectType($type); |
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| 211 | } |
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| 212 | |||
| 213 | if ($type instanceof InterfaceType) { |
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| 214 | return $this->extendInterfaceType($type); |
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| 215 | } |
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| 216 | |||
| 217 | if ($type instanceof UnionType) { |
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| 218 | return $this->extendUnionType($type); |
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| 219 | } |
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| 220 | |||
| 221 | // This type is not yet extendable. |
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| 222 | return $type; |
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| 223 | } |
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| 224 | |||
| 225 | /** |
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| 226 | * @param ObjectType $type |
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| 227 | * @return ObjectType |
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| 228 | */ |
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| 229 | protected function extendObjectType(ObjectType $type): ObjectType |
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| 230 | { |
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| 231 | $typeName = $type->getName(); |
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| 232 | $extensionASTNodes = $type->getExtensionAstNodes(); |
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| 233 | |||
| 234 | if ($this->info->hasTypeExtensions($typeName)) { |
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| 235 | $extensionASTNodes = $this->extendExtensionASTNodes($typeName, $extensionASTNodes); |
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| 236 | } |
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| 237 | |||
| 238 | return newObjectType([ |
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| 239 | 'name' => $typeName, |
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| 240 | 'description' => $type->getDescription(), |
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| 241 | 'interfaces' => function () use ($type) { |
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| 242 | return $this->extendImplementedInterfaces($type); |
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| 243 | }, |
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| 244 | 'fields' => function () use ($type) { |
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| 245 | return $this->extendFieldMap($type); |
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| 246 | }, |
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| 247 | 'astNode' => $type->getAstNode(), |
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| 248 | 'extensionASTNodes' => $extensionASTNodes, |
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| 249 | 'isTypeOf' => $type->getIsTypeOf(), |
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| 250 | ]); |
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| 251 | } |
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| 252 | |||
| 253 | /** |
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| 254 | * @param InterfaceType $type |
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| 255 | * @return InterfaceType |
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| 256 | */ |
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| 257 | protected function extendInterfaceType(InterfaceType $type): InterfaceType |
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| 258 | { |
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| 259 | $typeName = $type->getName(); |
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| 260 | $extensionASTNodes = $this->info->getTypeExtensions($typeName); |
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| 261 | |||
| 262 | if ($this->info->hasTypeExtensions($typeName)) { |
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| 263 | $extensionASTNodes = $this->extendExtensionASTNodes($typeName, $extensionASTNodes); |
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| 264 | } |
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| 265 | |||
| 266 | return newInterfaceType([ |
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| 267 | 'name' => $typeName, |
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| 268 | 'description' => $type->getDescription(), |
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| 269 | 'fields' => function () use ($type) { |
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| 270 | return $this->extendFieldMap($type); |
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| 271 | }, |
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| 272 | 'astNode' => $type->getAstNode(), |
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| 273 | 'typeExtensions' => $extensionASTNodes, |
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| 274 | 'resolveType' => $type->getResolveType(), |
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| 275 | ]); |
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| 276 | } |
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| 277 | |||
| 278 | /** |
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| 279 | * @param string $typeName |
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| 280 | * @param array $nodes |
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| 281 | * @return array |
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| 282 | */ |
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| 283 | protected function extendExtensionASTNodes(string $typeName, array $nodes): array |
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| 284 | { |
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| 285 | $typeExtensions = $this->info->getTypeExtensions($typeName); |
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| 286 | return !empty($nodes) ? \array_merge($typeExtensions, $nodes) : $typeExtensions; |
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| 287 | } |
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| 288 | |||
| 289 | /** |
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| 290 | * @param UnionType $type |
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| 291 | * @return UnionType |
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| 292 | * @throws InvariantException |
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| 293 | */ |
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| 294 | protected function extendUnionType(UnionType $type): UnionType |
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| 295 | { |
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| 296 | return newUnionType([ |
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| 297 | 'name' => $type->getName(), |
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| 298 | 'description' => $type->getDescription(), |
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| 299 | 'types' => \array_map(function ($unionType) { |
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| 300 | return $this->getExtendedType($unionType); |
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| 301 | }, $type->getTypes()), |
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| 302 | 'astNode' => $type->getAstNode(), |
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| 303 | 'resolveType' => $type->getResolveType(), |
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| 304 | ]); |
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| 305 | } |
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| 306 | |||
| 307 | /** |
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| 308 | * @param ObjectType $type |
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| 309 | * @return array |
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| 310 | * @throws InvariantException |
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| 311 | */ |
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| 312 | protected function extendImplementedInterfaces(ObjectType $type): array |
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| 313 | { |
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| 314 | $typeName = $type->getName(); |
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| 315 | |||
| 316 | $interfaces = \array_map(function (InterfaceType $interface) { |
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| 317 | return $this->getExtendedType($interface); |
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| 318 | }, $type->getInterfaces()); |
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| 319 | |||
| 320 | // If there are any extensions to the interfaces, apply those here. |
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| 321 | $extensions = $this->info->getTypeExtensions($typeName); |
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| 322 | |||
| 323 | if (null !== $extensions) { |
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| 324 | foreach ($extensions as $extension) { |
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| 325 | foreach ($extension->getInterfaces() as $namedType) { |
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| 326 | // Note: While this could make early assertions to get the correctly |
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| 327 | // typed values, that would throw immediately while type system |
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| 328 | // validation with validateSchema() will produce more actionable results. |
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| 329 | $interfaces[] = $this->definitionBuilder->buildType($namedType); |
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| 330 | } |
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| 331 | } |
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| 332 | } |
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| 333 | |||
| 334 | return $interfaces; |
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| 335 | } |
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| 336 | |||
| 337 | /** |
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| 338 | * @param TypeInterface|ObjectType|InterfaceType $type |
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| 339 | * @return array |
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| 340 | * @throws InvalidTypeException |
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| 341 | * @throws InvariantException |
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| 342 | * @throws ExtensionException |
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| 343 | * @throws InvalidArgumentException |
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| 344 | */ |
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| 345 | protected function extendFieldMap(TypeInterface $type): array |
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| 391 | } |
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| 392 | |||
| 393 | /** |
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| 394 | * @param TypeInterface $typeDefinition |
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| 395 | * @return TypeInterface |
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| 396 | * @throws InvalidArgumentException |
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| 397 | * @throws InvalidTypeException |
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| 398 | * @throws InvariantException |
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| 399 | */ |
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| 400 | protected function extendFieldType(TypeInterface $typeDefinition): TypeInterface |
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| 401 | { |
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| 402 | if ($typeDefinition instanceof ListType) { |
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| 411 | } |
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| 412 | } |
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| 413 |
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