PHP code example of exteon / mapping-class-loader

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

exteon / mapping-class-loader example snippets

    class A {
        public function doSomething(string $what): void
        {
            // ...
        }
    }

    use Exteon\Loader\MappingClassLoader\ClassResolver;
    use Exteon\Loader\MappingClassLoader\Data\LoadAction;

    class Resolver implements ClassResolver {
        function resolveClass(string $class) : array{
            $loadActions = [];
            $sourceFile = $class . '.php';
            $sourceCode = file_get_contents($sourceFile);
            
            // Rename i.e. A to A_proxied
            $proxiedClass = $class.'_proxied';
            $modifiedCode = preg_replace(
                '(/class\\s+)('.preg_quote($class,'/').')(\\s)/', 
                '$1'.$proxiedClass.'$3',
                $sourceCode
            );
            
            $loadActions[] = new LoadAction(
                $proxiedClass, 
                $sourceFile, 
                $modifiedCode
            );
            
            $proxyCode = '

class ' . $class . ' extends ' . $proxiedClass. '
{
    // ... specific generated proxy code ...
}
            ';
            
            $loadActions[] = new LoadAction(
                $class,
                null,
                $proxyCode
            ); 
        }
    }

    use Exteon\Loader\MappingClassLoader\MappingClassLoader;
    use Exteon\Loader\MappingClassLoader\StreamWrapLoader;
    
    $loader = new MappingClassLoader(
        [],
        [new Resolver()],
        null,
        new StreamWrapLoader([])
    );

    $loader->register();

    (new A())->doSomething('anything');

  public function __construct(
    string $class, 
    ?string $file, 
    ?string $source = null, 
    ?string $hintCode = null
  );

    use Exteon\Loader\MappingClassLoader\MappingClassLoader;
    use Exteon\Loader\MappingClassLoader\StreamWrapLoader;
    
    $loader = new MappingClassLoader(
            [
            'enableCaching' => true,
            'cacheDir' => '/tmp/caching'
        ],
        [new Resolver()],
        null,
        new StreamWrapLoader([])
    );

    $loader->register();

    use Exteon\Loader\MappingClassLoader\MappingClassLoader;
    use Exteon\Loader\MappingClassLoader\StreamWrapLoader;
    
    $loader = new MappingClassLoader(
        [],
        [new Resolver()],
        null,
        new StreamWrapLoader([
            'enableMapping' => true
        ])
    );

    $loader->register();

    use Exteon\Loader\MappingClassLoader\StaticInitializer\ClassInitMethodInitializable;
    
    class A  implements ClassInitMethodInitializable {
        protected static $someClassStaticProperty;
        
        public static function classInit() : void{
            self::$someClassStaticProperty = 'I am initialized now';
        }
        
        function getStaticProperty(){
            return self::$someClassStaticProperty;
        }
    }

    use Exteon\Loader\MappingClassLoader\MappingClassLoader;
    use Exteon\Loader\MappingClassLoader\StaticInitializer\ClassInitMethodInitializer;use Exteon\Loader\MappingClassLoader\StreamWrapLoader;
    
    $loader = new MappingClassLoader(
        [],
        [new Resolver()],
        new ClassInitMethodInitializer(),
        new StreamWrapLoader([])
    );

    $loader->register();
    
    var_dump((new A())->getStaticProperty());

  class B extends A {
        protected static $someOtherStaticProperty;
  
        public static function classInit() : void{
            self::$someClassStaticProperty = 'Other property is initialized';
        }
  }

MappingClassLoader::dumpHintClasses($dir);