/** * Get the alias for an abstract if available. * * @param string $abstract * @return string */ protected function getAlias($abstract) {// get Alias ,if has aliases return it ,or return it self return isset($this->aliases[$abstract]) ? $this->aliases[$abstract] : $abstract; }// Get the alias for an abstract if available. /** * Get the container‘s bindings. * * @return array */ public function getBindings() { return $this->bindings;// return it self like a big _get function } /** * Drop all of the stale instances and aliases. * * @param string $abstract * @return void */ protected function dropStaleInstances($abstract) { unset($this->instances[$abstract], $this->aliases[$abstract]); }// drop every thing about the abstract , // use the system function unset /** * Remove a resolved instance from the instance cache. * * @param string $abstract * @return void */ public function forgetInstance($abstract) { unset($this->instances[$this->normalize($abstract)]); }// in php ,drop and remove ,all about this use the unset even forget /** * Clear all of the instances from the container. * * @return void */ public function forgetInstances() { $this->instances = []; }// clear all drop remove forget ,this is better then unset(self) /** * Flush the container of all bindings and resolved instances. * * @return void */ public function flush() { $this->aliases = []; $this->resolved = []; $this->bindings = []; $this->instances = []; }// flush means to refresh it ,so like empty this alias resolved bindings instances /** * Set the globally available instance of the container. * * @return static */ public static function getInstance() { return static::$instance;// return the $instance not the self instance. } /** * Set the shared instance of the container. * * @param \Illuminate\Contracts\Container\Container $container * @return void */ public static function setInstance(ContainerContract $container) { static::$instance = $container; }// set the instance use the container /** * Determine if a given offset exists. * * @param string $key * @return bool */ public function offsetExists($key) { return isset($this->bindings[$this->normalize($key)]); }// determine like check , // if has the bindings been set return true /** * Get the value at a given offset. * * @param string $key * @return mixed */ public function offsetGet($key) { return $this->make($key);// make is too powerful }// return it a /** * Set the value at a given offset. * * @param string $key * @param mixed $value * @return void */ public function offsetSet($key, $value) { // If the value is not a Closure, we will make it one. This simply gives // more "drop-in" replacement functionality for the Pimple which this // container‘s simplest functions are base modeled and built after. if (! $value instanceof Closure) { $value = function () use ($value) { return $value; }; }// if the value is a Closure. $this->bind($key, $value);// use bind function } /** * Unset the value at a given offset. * * @param string $key * @return void */ public function offsetUnset($key) { $key = $this->normalize($key); unset($this->bindings[$key], $this->instances[$key], $this->resolved[$key]); }// unset all offset /** * Dynamically access container services. * * @param string $key * @return mixed */ public function __get($key) { return $this[$key];// a big } /** * Dynamically set container services. * * @param string $key * @param mixed $value * @return void */ public function __set($key, $value) { $this[$key] = $value; // big set }
时间: 2024-10-08 15:48:26