*/ protected function resolveClass(ReflectionParameter $parameter) { try { return $parameter->isVariadic() ? $this->resolveVariadicClass($parameter) : $this->make(Util::getParameterClassName($parameter)); } // If we can not resolve the class instance, we will check to see if the value // is optional, and if it is we will return the optional parameter value as // the value of the dependency, similarly to how we do this with scalars. catch (BindingResolutionException $e) { if ($parameter->isDefaultValueAvailable()) { array_pop($this->with); return $parameter->getDefaultValue(); } if ($parameter->isVariadic()) { array_pop($this->with); return []; } throw $e; } } /** * Resolve a class based variadic dependency from the container. * * @param \ReflectionParameter $parameter * @return mixed */ protected function resolveVariadicClass(ReflectionParameter $parameter) { $className = Util::getParameterClassName($parameter); $abstract = $this->getAlias($className); if (! is_array($concrete = $this->getContextualConcrete($abstract))) { return $this->make($className); } return array_map(function ($abstract) { return $this->resolve($abstract); }, $concrete); } /** * Throw an exception that the concrete is not instantiable. * * @param string $concrete * @return void * * @throws \Illuminate\Contracts\Container\BindingResolutionException */ protected function notInstantiable($concrete) { if (! empty($this->buildStack)) { $previous = implode(', ', $this->buildStack); $message = "Target [$concrete] is not instantiable while building [$previous]."; } else { $message = "Target [$concrete] is not instantiable."; } throw new BindingResolutionException($message); } /** * Throw an exception for an unresolvable primitive. * * @param \ReflectionParameter $parameter * @return void * * @throws \Illuminate\Contracts\Container\BindingResolutionException */ protected function unresolvablePrimitive(ReflectionParameter $parameter) { $message = "Unresolvable dependency resolving [$parameter] in class {$parameter->getDeclaringClass()->getName()}"; throw new BindingResolutionException($message); } /** * Register a new before resolving callback for all types. * * @param \Closure|string $abstract * @param \Closure|null $callback * @return void */ public function beforeResolving($abstract, Closure $callback = null) { if (is_string($abstract)) { $abstract = $this->getAlias($abstract); } if ($abstract instanceof Closure && is_null($callback)) { $this->globalBeforeResolvingCallbacks[] = $abstract; } else { $this->beforeResolvingCallbacks[$abstract][] = $callback; } } /** * Register a new resolving callback. * * @param \Closure|string $abstract * @param \Closure|null $callback * @return void */ public function resolving($abstract, Closure $callback = null) { if (is_string($abstract)) { $abstract = $this->getAlias($abstract); } if (is_null($callback) && $abstract instanceof Closure) { $this->globalResolvingCallbacks[] = $abstract; } else { $this->resolvingCallbacks[$abstract][] = $callback; } } /** * Register a new after resolving callback for all types. * * @param \Closure|string $abstract * @param \Closure|null $callback * @return void */ public function afterResolving($abstract, Closure $callback = null) { if (is_string($abstract)) { $abstract = $this->getAlias($abstract); } if ($abstract instanceof Closure && is_null($callback)) { $this->globalAfterResolvingCallbacks[] = $abstract; } else { $this->afterResolvingCallbacks[$abstract][] = $callback; } } /** * Fire all of the before resolving callbacks. * * @param string $abstract * @param array $parameters * @return void */ protected function fireBeforeResolvingCallbacks($abstract, $parameters = []) { $this->fireBeforeCallbackArray($abstract, $parameters, $this->globalBeforeResolvingCallbacks); foreach ($this->beforeResolvingCallbacks as $type => $callbacks) { if ($type === $abstract || is_subclass_of($abstract, $type)) { $this->fireBeforeCallbackArray($abstract, $parameters, $callbacks); } } } /** * Fire an array of callbacks with an object. * * @param string $abstract * @param array $parameters * @param array $callbacks * @return void */ protected function fireBeforeCallbackArray($abstract, $parameters, array $callbacks) { foreach ($callbacks as $callback) { $callback($abstract, $parameters, $this); } } /** * Fire all of the resolving callbacks. * * @param string $abstract * @param mixed $object * @return void */ protected function fireResolvingCallbacks($abstract, $object) { $this->fireCallbackArray($object, $this->globalResolvingCallbacks); $this->fireCallbackArray( $object, $this->getCallbacksForType($abstract, $object, $this->resolvingCallbacks) ); $this->fireAfterResolvingCallbacks($abstract, $object); } /** * Fire all of the after resolving callbacks. * * @param string $abstract * @param mixed $object * @return void */ protected function fireAfterResolvingCallbacks($abstract, $object) { $this->fireCallbackArray($object, $this->globalAfterResolvingCallbacks); $this->fireCallbackArray( $object, $this->getCallbacksForType($abstract, $object, $this->afterResolvingCallbacks) ); } /** * Get all callbacks for a given type. * * @param string $abstract * @param object $object * @param array $callbacksPerType * @return array */ protected function getCallbacksForType($abstract, $object, array $callbacksPerType) { $results = []; foreach ($callbacksPerType as $type => $callbacks) { if ($type === $abstract || $object instanceof $type) { $results = array_merge($results, $callbacks); } } return $results; } /** * Fire an array of callbacks with an object. * * @param mixed $object * @param array $callbacks * @return void */ protected function fireCallbackArray($object, array $callbacks) { foreach ($callbacks as $callback) { $callback($object, $this); } } /** * Get the container's bindings. * * @return array */ public function getBindings() { return $this->bindings; } /** * Get the alias for an abstract if available. * * @param string $abstract * @return string */ public function getAlias($abstract) { return isset($this->aliases[$abstract]) ? $this->getAlias($this->aliases[$abstract]) : $abstract; } /** * Get the extender callbacks for a given type. * * @param string $abstract * @return array */ protected function getExtenders($abstract) { return $this->extenders[$this->getAlias($abstract)] ?? []; } /** * Remove all of the extender callbacks for a given type. * * @param string $abstract * @return void */ public function forgetExtenders($abstract) { unset($this->extenders[$this->getAlias($abstract)]); } /** * Drop all of the stale instances and aliases. * * @param string $abstract * @return void */ protected function dropStaleInstances($abstract) { unset($this->instances[$abstract], $this->aliases[$abstract]); } /** * Remove a resolved instance from the instance cache. * * @param string $abstract * @return void */ public function forgetInstance($abstract) { unset($this->instances[$abstract]); } /** * Clear all of the instances from the container. * * @return void */ public function forgetInstances() { $this->instances = []; } /** * Clear all of the scoped instances from the container. * * @return void */ public function forgetScopedInstances() { foreach ($this->scopedInstances as $scoped) { unset($this->instances[$scoped]); } } /** * Flush the container of all bindings and resolved instances. * * @return void */ public function flush() { $this->aliases = []; $this->resolved = []; $this->bindings = []; $this->instances = []; $this->abstractAliases = []; $this->scopedInstances = []; } /** * Get the globally available instance of the container. * * @return static */ public static function getInstance() { if (is_null(static::$instance)) { static::$instance = new static; } return static::$instance; } /** * Set the shared instance of the container. * * @param \Illuminate\Contracts\Container\Container|null $container * @return \Illuminate\Contracts\Container\Container|static */ public static function setInstance(ContainerContract $container = null) { return static::$instance = $container; } /** * Determine if a given offset exists. * * @param string $key * @return bool */ #[\ReturnTypeWillChange] public function offsetExists($key) { return $this->bound($key); } /** * Get the value at a given offset. * * @param string $key * @return mixed */ #[\ReturnTypeWillChange] public function offsetGet($key) { return $this->make($key); } /** * Set the value at a given offset. * * @param string $key * @param mixed $value * @return void */ #[\ReturnTypeWillChange] public function offsetSet($key, $value) { $this->bind($key, $value instanceof Closure ? $value : function () use ($value) { return $value; }); } /** * Unset the value at a given offset. * * @param string $key * @return void */ #[\ReturnTypeWillChange] public function offsetUnset($key) { unset($this->bindings[$key], $this->instances[$key], $this->resolved[$key]); } /** * Dynamically access container services. * * @param string $key * @return mixed */ public function __get($key) { return $this[$key]; } /** * Dynamically set container services. * * @param string $key * @param mixed $value * @return void */ public function __set($key, $value) { $this[$key] = $value; } }