loader.php

См. документацию.

<?php
 
namespace Bitrix\Main\ORM;
 
use Bitrix\Main\ORM\Data\DataManager;

class Loader
{
    protected static $predefinedObjectClass;

    protected static $predefinedCollectionClass;
 
    public static function autoLoad($class)
    {
        // break recursion
        if (str_ends_with($class, 'Table'))
        {
            return;
        }
 
        if (!str_contains($class, '\\'))
        {
            // define global namespace explicitly
            $class = '\\'.$class;
        }
 
        $namespace = substr($class, 0, strrpos($class, '\\') + 1);
        $className = substr($class, strrpos($class, '\\') + 1);
 
        if (str_starts_with($className, 'EO_'))
        {
            $needFor = 'object';
 
            if ($className == 'EO_NNM_Object')
            {
                // entity without name, defined by namespace
                $entityName = '';
            }
            elseif (substr($className, -11) == '_Collection')
            {
                $needFor = 'collection';
                $entityName = substr($className, 3, -11);
            }
            else
            {
                $entityName = substr($className, 3);
            }
 
            $entityName .= 'Table';
            $entityClass = $namespace.$entityName;
 
            if (class_exists($entityClass) && is_subclass_of($entityClass, DataManager::class))
            {
                ($needFor == 'object')
                    ? Entity::compileObjectClass($entityClass)
                    : Entity::compileCollectionClass($entityClass);
            }
        }
    }
 
    public static function registerObjectClass($objectClass, $entityClass)
    {
        static::$predefinedObjectClass[strtolower(Entity::normalizeName($objectClass))] = $entityClass;
    }
 
    public static function registerCollectionClass($collectionClass, $entityClass)
    {
        static::$predefinedCollectionClass[strtolower(Entity::normalizeName($collectionClass))] = $entityClass;
    }
}