112 lines
2.3 KiB
PHP
112 lines
2.3 KiB
PHP
<?php namespace Laravel;
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class Loader {
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/**
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* The paths that will be searched by the loader.
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*
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* @var array
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*/
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protected $paths;
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/**
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* The class aliases defined for the application.
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*
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* @var array
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*/
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protected $aliases;
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/**
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* Create a new class loader instance.
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*
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* @param array $paths
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* @param array $aliases
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* @return void
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*/
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public function __construct($paths, $aliases)
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{
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$this->paths = $paths;
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$this->aliases = $aliases;
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}
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/**
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* Load the file for a given class.
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*
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* @param string $class
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* @return void
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*/
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public function load($class)
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{
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// All Laravel core classes follow a namespace to directory convention. So, we will
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// replace all of the namespace slashes with directory slashes.
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$file = strtolower(str_replace('\\', '/', $class));
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// First, we'll check to determine if an alias exists. If it does, we will define the
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// alias and bail out. Aliases are defined for most developer used core classes.
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if (array_key_exists($class, $this->aliases)) return class_alias($this->aliases[$class], $class);
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foreach ($this->paths as $path)
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{
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if (file_exists($path = $path.$file.EXT))
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{
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require_once $path;
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return;
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}
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}
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}
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/**
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* Register a class alias with the auto-loader.
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*
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* Note: Aliases are lazy-loaded, so the aliased class will not be included until it is needed.
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*
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* <code>
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* // Register an alias for the "SwiftMailer\Transport" class
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* Loader::alias('Transport', 'SwiftMailer\\Transport');
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* </code>
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*
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* @param string $alias
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* @param string $class
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* @return void
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*/
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public function alias($alias, $class)
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{
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$this->aliases[$alias] = $class;
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}
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/**
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* Register a path with the auto-loader.
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*
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* The registered path will be searched when auto-loading classes.
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*
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* <code>
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* // Register a path to be searched by the auto-loader
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* Loader::path('path/to/files');
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* </code>
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*
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* @param string $path
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* @return void
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*/
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public function path($path)
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{
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$this->paths[] = rtrim($path, '/').'/';
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}
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/**
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* Remove an alias from the auto-loader's alias registrations.
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*
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* <code>
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* // Remove the "Transport" alias from the registered aliases
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* Loader::forget_alias('Transport');
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* </code>
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*
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* @param string $alias
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* @return void
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*/
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public function forget_alias($alias)
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{
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unset($this->aliases[$alias]);
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}
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} |