Macros

src/LazyObject.php

@@ -13,7 +13,16 @@ $runA = (function(int $i) use ($lazyA) {
 });
 
 $lazyB = new libs\LazyObject(ex\Example2::class);
+ex\Example2::macro('multiply', function (int $a, int $b) {
+    echo $this->version;
+    echo PHP_EOL;
+    return $a * $b;
+});
+
 $objectB = $lazyB->proxy();
 $objectB->hi();
+echo $objectB->multiply(5, 3);
+echo PHP_EOL;
+
 
 $runA(800);

src/ex/Example2.php

@@ -1,6 +1,10 @@
 <?php
 namespace ex;
 
+use libs\Traits\Macroable;
+
 class Example2 {
+   use Macroable;
+   public int $version = 22;
    public function hi(): void { echo "Hi! \n"; }
 }

src/libs/Traits/Macroable.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace libs\Traits;
+
+trait Macroable
+{
+    protected static array $macros = [];
+
+    /**
+     * Register a custom macro.
+     */
+    public static function macro(string $name, mixed $macro): void
+    {
+        static::$macros[$name] = $macro;
+    }
+
+    /**
+     * Checks if macro is registered.
+     */
+    public static function hasMacro(string $name): bool
+    {
+        return isset(static::$macros[$name]);
+    }
+
+    /**
+     * Dynamically handle calls to the class.
+     */
+    public function __call(string $method, mixed $parameters): mixed
+    {
+        if (!static::hasMacro($method)) {
+            throw new \BadMethodCallException("Method {$method} does not exist.");
+        }
+
+        $macro = static::$macros[$method];
+
+        if ($macro instanceof \Closure) {
+            return call_user_func_array($macro->bindTo($this, static::class), $parameters);
+        }
+
+        return call_user_func_array($macro, $parameters);
+    }
+
+    /**
+     * Dynamically handle static calls to the class.
+     */
+    public static function __callStatic(string $method, mixed $parameters): mixed
+    {
+        if (!static::hasMacro($method)) {
+            throw new \BadMethodCallException("Method {$method} does not exist.");
+        }
+
+        $macro = static::$macros[$method];
+
+        if ($macro instanceof \Closure) {
+            return call_user_func_array(\Closure::bind($macro, null, static::class), $parameters);
+        }
+
+        return call_user_func_array($macro, $parameters);
+    }
+}