monitor() without handlers triggers deprecation notice

Author: dg

src/ComponentModel/Component.php

@@ -93,6 +93,8 @@ final public function lookupPath(?string $type = null, bool $throw = true): ?str
 	final public function monitor(string $type, ?callable $attached = null, ?callable $detached = null): void
 	{
 		if (func_num_args() === 1) {
+			$class = (new \ReflectionMethod($this, 'attached'))->getDeclaringClass()->getName();
+			trigger_error(__METHOD__ . "(): Methods $class::attached() and $class::detached() are deprecated, use monitor(\$type, [attached], [detached])", E_USER_DEPRECATED);
 			$attached = [$this, 'attached'];
 			$detached = [$this, 'detached'];
 		}

tests/ComponentModel/Container.attached.phpt

@@ -10,24 +10,18 @@ use Nette\ComponentModel\Container;
 use Nette\ComponentModel\IComponent;
 use Tester\Assert;
 
-
 require __DIR__ . '/../bootstrap.php';
 
 
-class TestClass extends Container implements ArrayAccess
+function handler(IComponent $sender, string $label): Closure
 {
-	use Nette\ComponentModel\ArrayAccess;
-
-	public function attached(IComponent $obj): void
-	{
-		Notes::add(static::class . '::ATTACHED(' . $obj::class . ')');
-	}
+	return fn(IComponent $obj) => Notes::add($sender::class . '::' . $label . '(' . $obj::class . ')');
+}
 
 
-	public function detached(IComponent $obj): void
-	{
-		Notes::add(static::class . '::detached(' . $obj::class . ')');
-	}
+class TestClass extends Container implements ArrayAccess
+{
+	use Nette\ComponentModel\ArrayAccess;
 }
 
 
@@ -47,12 +41,13 @@ class E extends TestClass
 {
 }
 
+
 $d = new D;
 $d['e'] = new E;
 $b = new B;
-$b->monitor(A::class);
+$b->monitor(A::class, handler($b, 'ATTACHED'), handler($b, 'detached'));
 $b['c'] = new C;
-$b['c']->monitor(A::class);
+$b['c']->monitor(A::class, handler($b['c'], 'ATTACHED'), handler($b['c'], 'detached'));
 $b['c']['d'] = $d;
 
 // 'a' becoming 'b' parent
@@ -90,7 +85,7 @@ class FooForm extends TestClass
 	protected function validateParent(Nette\ComponentModel\IContainer $parent): void
 	{
 		parent::validateParent($parent);
-		$this->monitor(self::class);
+		$this->monitor(self::class, handler($this, 'ATTACHED'), handler($this, 'detached'));
 	}
 }
 
@@ -99,8 +94,8 @@ class FooControl extends TestClass
 	protected function validateParent(Nette\ComponentModel\IContainer $parent): void
 	{
 		parent::validateParent($parent);
-		$this->monitor(FooPresenter::class);
-		$this->monitor(TestClass::class); // double
+		$this->monitor(FooPresenter::class, $h1 = handler($this, 'ATTACHED'), $h2 = handler($this, 'detached'));
+		$this->monitor(TestClass::class, $h1, $h2); // double
 	}
 }
 

tests/ComponentModel/Container.clone.phpt

@@ -11,24 +11,18 @@ use Nette\ComponentModel\IComponent;
 use Nette\ComponentModel\IContainer;
 use Tester\Assert;
 
-
 require __DIR__ . '/../bootstrap.php';
 
 
-class TestClass extends Container implements ArrayAccess
+function handler(IComponent $sender, string $label): Closure
 {
-	use Nette\ComponentModel\ArrayAccess;
-
-	public function attached(IComponent $obj): void
-	{
-		Notes::add(static::class . '::ATTACHED(' . $obj::class . ')');
-	}
+	return fn(IComponent $obj) => Notes::add($sender::class . '::' . $label . '(' . $obj::class . ')');
+}
 
 
-	public function detached(IComponent $obj): void
-	{
-		Notes::add(static::class . '::detached(' . $obj::class . ')');
-	}
+class TestClass extends Container implements ArrayAccess
+{
+	use Nette\ComponentModel\ArrayAccess;
 }
 
 
@@ -67,9 +61,8 @@ $a['b']['c'] = new C;
 $a['b']['c']['d'] = new D;
 $a['b']['c']['d']['e'] = new E;
 
-$a['b']->monitor(A::class);
-$a['b']->monitor(A::class);
-$a['b']['c']->monitor(A::class);
+$a['b']->monitor(A::class, handler($a['b'], 'ATTACHED'), handler($a['b'], 'detached'));
+$a['b']['c']->monitor(A::class, handler($a['b']['c'], 'ATTACHED'), handler($a['b']['c'], 'detached'));
 
 Assert::same([
 	'B::ATTACHED(A)',