Total Complexity | 55 |
Total Lines | 304 |
Duplicated Lines | 0 % |
Changes | 5 | ||
Bugs | 0 | Features | 0 |
Complex classes like Container 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 Container, and based on these observations, apply Extract Interface, too.
1 | <?php |
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29 | class Container implements ContainerInterface, ArrayAccess |
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30 | { |
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31 | use DefinitionBuilder; |
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32 | |||
33 | /** |
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34 | * @var CircularDependencyDetection |
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35 | */ |
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36 | protected $circularDependencyDetection; |
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37 | |||
38 | /** |
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39 | * @var DefinitionList |
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40 | */ |
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41 | protected $definitions; |
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42 | |||
43 | /** |
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44 | * @var ResolvedList |
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45 | */ |
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46 | protected $resolved; |
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47 | |||
48 | /** |
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49 | * @var DefinitionDetection |
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50 | */ |
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51 | protected $detection; |
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52 | |||
53 | /** |
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54 | * @var DefinitionResolverInterface |
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55 | */ |
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56 | protected $definitionResolver; |
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57 | |||
58 | /** |
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59 | * @var ClassResolver |
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60 | */ |
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61 | protected $classResolver; |
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62 | |||
63 | /** |
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64 | * @var Reflector |
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65 | */ |
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66 | protected $reflector; |
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67 | |||
68 | /** |
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69 | * @var AttributesInjection |
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70 | */ |
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71 | protected $attributesInjection; |
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72 | |||
73 | /** |
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74 | * @var ServiceProviderManager |
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75 | */ |
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76 | protected $providers; |
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77 | |||
78 | /** |
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79 | * @var ContainerComposite |
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80 | */ |
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81 | protected $delegates; |
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82 | |||
83 | /** |
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84 | * @var bool |
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85 | */ |
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86 | protected $defaultShared; |
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87 | |||
88 | /** |
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89 | * @var bool |
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90 | */ |
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91 | protected $useAutowire; |
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92 | |||
93 | /** |
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94 | * @var bool |
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95 | */ |
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96 | protected $useAttributes; |
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97 | |||
98 | public function __construct() |
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99 | { |
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100 | $this->reflector = new Reflector(); |
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101 | $this->useAutowire = true; |
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102 | $this->defaultShared = true; |
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103 | $this->useAttributes = $this->reflector->attributesAvailable(); |
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104 | |||
105 | $this->circularDependencyDetection = new CircularDependencyDetection(); |
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106 | $this->definitions = new DefinitionList(); |
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107 | $this->resolved = new ResolvedList(); |
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108 | $this->delegates = new ContainerComposite(); |
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109 | $this->providers = new ServiceProviderManager($this); |
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110 | $this->attributesInjection = new AttributesInjection($this, $this->reflector); |
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111 | $this->classResolver = new ReflectionClassResolver( |
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112 | ParameterResolverChain::default($this, $this->attributesInjection, $this->reflector) |
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113 | ); |
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114 | $this->definitionResolver = new DefinitionResolver($this, $this->resolved, $this->attributesInjection); |
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115 | $this->detection = new AutoDetection($this, $this->classResolver); |
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116 | |||
117 | $this->add(ContainerInterface::class, new RawDefinition($this)); |
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118 | $this->add(self::class, new RawDefinition($this)); |
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119 | } |
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120 | |||
121 | public function add(string $id, $value = null): DefinitionWrapper |
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122 | { |
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123 | $value = $value === null && count(func_get_args()) === 1 ? $id : $value; |
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124 | $definition = $this->detection->detect($value); |
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125 | $definition->setIdentity($id); |
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126 | |||
127 | $this->resolved->delete($id); |
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128 | $this->definitions->add($definition); |
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129 | |||
130 | if ($definition instanceof Shareable && $definition->isShared() === null) { |
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131 | $definition->setShared($this->defaultShared); |
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132 | } |
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133 | |||
134 | if ($definition instanceof RawDefinition) { |
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135 | $this->resolved->share($id, $definition->getValue()); |
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136 | } |
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137 | |||
138 | return new DefinitionWrapper($definition); |
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139 | } |
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140 | |||
141 | public function has($id): bool |
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151 | } |
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152 | |||
153 | public function get($id) |
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154 | { |
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155 | $this->assertString($id); |
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156 | if ($this->resolved->has($id)) { |
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157 | return $this->resolved->get($id); |
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158 | } |
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159 | |||
160 | return |
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161 | $this->circularDependencyDetection->execute($id, function () use ($id) { |
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162 | return $this->resolve($id); |
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163 | }); |
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164 | } |
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165 | |||
166 | protected function resolve(string $id) |
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167 | { |
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168 | $this->providers->registerLazyProviderFor($id); |
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169 | |||
170 | if ($this->definitions->has($id)) { |
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171 | $definition = $this->definitions->get($id); |
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172 | return $this->definitionResolver->resolve($definition); |
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173 | } |
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174 | |||
175 | if ($this->definitions->hasTag($id)) { |
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176 | $tagged = $this->definitions->getTagged($id); |
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177 | return $this->definitionResolver->resolveMany(...$tagged); |
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178 | } |
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179 | |||
180 | if ($this->shouldAutowireResolve($id)) { |
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181 | $definition = |
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182 | (new ClassDefinition($id)) |
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183 | ->setIdentity($id) |
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184 | ->setShared($this->defaultShared) |
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185 | ->setClassResolver($this->classResolver); |
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186 | return $this->definitionResolver->resolve($definition); |
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187 | } |
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188 | |||
189 | if ($this->delegates->has($id)) { |
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190 | return $this->delegates->get($id); |
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191 | } |
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192 | |||
193 | throw NotFoundException::noEntryWasFound($id); |
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194 | } |
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195 | |||
196 | public function delete(string $id): void |
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197 | { |
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198 | $this->definitions->delete($id); |
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199 | $this->resolved->delete($id); |
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200 | } |
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201 | |||
202 | public function definition(string $id): DefinitionWrapper |
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205 | } |
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206 | |||
207 | public function injectDependency($object) |
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210 | } |
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211 | |||
212 | /** |
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213 | * @param string|array|\Closure $target |
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214 | * @param array $args |
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215 | * @return mixed |
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216 | * @throws Exception\UnresolvableParameterException |
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217 | * @throws \ReflectionException |
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218 | */ |
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219 | public function invoke($target, array $args = []) |
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220 | { |
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221 | if ((is_string($target) && function_exists($target)) || $target instanceof \Closure) { |
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222 | $reflectionFunction = new \ReflectionFunction($target); |
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223 | $arguments = $this->classResolver->resolveArguments($reflectionFunction, $args); |
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224 | return $reflectionFunction->invokeArgs($arguments); |
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225 | } |
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226 | |||
227 | if (is_object($target) && method_exists($target, '__invoke')) { |
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228 | $target = [$target, "__invoke"]; |
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229 | } |
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230 | |||
231 | if (is_string($target) && class_exists($target)) { |
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232 | $target = [$target, "__invoke"]; |
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233 | } |
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234 | |||
235 | if (is_array($target) && count($target) === 2) { |
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236 | list($objectOrClass, $method) = $target; |
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237 | $reflectionMethod = new \ReflectionMethod($objectOrClass, $method); |
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238 | $arguments = $this->classResolver->resolveArguments($reflectionMethod, $args); |
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239 | |||
240 | if ($reflectionMethod->isStatic()) { |
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241 | $objectOrClass = null; |
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242 | } elseif (is_string($objectOrClass) && $this->has($objectOrClass)) { |
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243 | $objectOrClass = $this->get($objectOrClass); |
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244 | } |
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245 | |||
246 | return $reflectionMethod->invokeArgs($objectOrClass, $arguments); |
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247 | } |
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248 | $targetName = is_string($target) ? $target : gettype($target); |
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249 | throw new ContainerException('Target is not invokable: ' . $targetName); |
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250 | } |
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251 | |||
252 | public function addProvider(ServiceProvider ...$providers): self |
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253 | { |
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254 | $this->providers->add(...$providers); |
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255 | return $this; |
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256 | } |
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257 | |||
258 | public function addDelegate(ContainerInterface $container, ?int $priority = null): self |
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259 | { |
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260 | $this->delegates->add($container, $priority); |
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261 | return $this; |
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262 | } |
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263 | |||
264 | public function useDefaultShared(bool $share): self |
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265 | { |
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266 | $this->defaultShared = $share; |
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267 | return $this; |
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268 | } |
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269 | |||
270 | public function defaultShared(): bool |
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271 | { |
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272 | return $this->defaultShared; |
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273 | } |
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274 | |||
275 | public function autowireEnabled(): bool |
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276 | { |
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277 | return $this->useAutowire; |
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278 | } |
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279 | |||
280 | public function useAutowire(bool $enabled): self |
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281 | { |
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282 | $this->useAutowire = $enabled; |
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283 | return $this; |
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284 | } |
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285 | |||
286 | public function attributesEnabled(): bool |
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287 | { |
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288 | return $this->useAttributes; |
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289 | } |
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290 | |||
291 | public function useAttributes(bool $useAttributes): self |
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292 | { |
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293 | if ($useAttributes) { |
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294 | $this->reflector->assertAttributesAvailable(); |
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295 | } |
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296 | |||
297 | $this->useAttributes = $useAttributes; |
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298 | return $this; |
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299 | } |
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300 | |||
301 | protected function shouldAutowireResolve($id): bool |
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302 | { |
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303 | return $this->useAutowire && $this->classResolver->canResolve($id); |
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304 | } |
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305 | |||
306 | public function offsetExists($offset): bool |
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307 | { |
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308 | return $this->has($offset); |
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309 | } |
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310 | |||
311 | public function offsetGet($offset) |
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312 | { |
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313 | return $this->get($offset); |
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314 | } |
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315 | |||
316 | public function offsetSet($offset, $value) |
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317 | { |
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318 | $this->add($offset, $value); |
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319 | } |
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320 | |||
321 | public function offsetUnset($offset) |
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324 | } |
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325 | |||
326 | protected function assertString($value): void |
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327 | { |
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328 | if (!is_string($value)) { |
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329 | throw new ContainerException( |
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330 | sprintf( |
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333 | ) |
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334 | ); |
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335 | } |
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336 | } |
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337 | } |
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338 |