Create bindings

src/Instantiator.php

@@ -8,6 +8,11 @@
 
 class Instantiator
 {
+    /**
+     * @var array
+     */
+    private static $bindings = [];
+
     /**
      * @var ReflectionClass
      */
@@ -32,6 +37,16 @@ public function __construct($classname)
         $this->classname = $classname;
     }
 
+    /**
+     * Bind a classname to a custom callable
+     *
+     * @return void
+     */
+    public static function bind($classname, callable $callable)
+    {
+        self::$bindings[$classname] = $callable;
+    }
+
     /**
      * News up the class object and resolves its dependencies
      *
@@ -47,6 +62,18 @@ public function call()
             return InstantiationsBinder::resolve($this->classname);
         }
 
+        // If the classname i binded, the instance will be resolved from
+        // the defined callable binding
+        if (isset(self::$bindings[$this->classname])) {
+            return self::$bindings[$this->classname]($this->classname);
+        }
+
+        // If the parent classname i binded, the instance will be resolved from
+        // the defined callable binding
+        if ($this->reflection->getParentClass() && isset(self::$bindings[$this->reflection->getParentClass()->getName()])) {
+            return self::$bindings[$this->reflection->getParentClass()->getName()]($this->classname);
+        }
+
         // If the parent instance bindings is defined, the instance will be
         // resolved from parent class bindings
         if ($this->reflection->getParentClass() and InstantiationsBinder::has($this->reflection->getParentClass()->getName())) {