update readme

README.md

@@ -39,23 +39,24 @@ echo $timerOnSum(1, 2); // Total execution: 1.00034234 ms; Result: 3
 # Generics
 ```php
 use Sagittaracc\PhpPythonDecorator\Decorator;
-use Sagittaracc\PhpPythonDecorator\T;
+use Sagittaracc\PhpPythonDecorator\modules\generics\aliases\T;
 
 #[T]
-class Box
+class PaymentInfo
 {
     use Decorator;
 
+    public string $id;
+
+    public int $amount;
+
     #[T]
-    public array $items;
+    public $currency;
 }
 
-$box = new Box();
-$box(Pencil::class); // new Box<Pencil>();
-
-$pencil = new Pencil();
-$pen = new Pen();
-$box->_items = [$pencil, $pen]; // throws a GenericError
+$paymentInfo = new PaymentInfo();
+$paymentInfo(Number::class); // new PaymentInfo<Number>();
+set_decorator_prop($paymentInfo, 'currency', 'rubles'); // throws a GenericError
 ```
 
 # Validation

src/modules/generics/aliases/T.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Sagittaracc\PhpPythonDecorator\modules\generics\aliases;
+
+use Attribute;
+use Sagittaracc\PhpPythonDecorator\modules\generics\BaseGeneric;
+
+#[Attribute]
+class T extends BaseGeneric
+{}

src/modules/generics/primitives/Number.php

@@ -6,6 +6,6 @@ class Number
 {
     public function validate($value)
     {
-        return is_numeric($value);
+        return is_int($value);
     }
 }

tests/GenericsTest.php

@@ -9,6 +9,7 @@
 use Sagittaracc\PhpPythonDecorator\modules\generics\primitives\Str;
 use Sagittaracc\PhpPythonDecorator\tests\examples\MyAnotherBox;
 use Sagittaracc\PhpPythonDecorator\tests\examples\MyBox;
+use Sagittaracc\PhpPythonDecorator\tests\examples\PaymentInfo;
 use Sagittaracc\PhpPythonDecorator\tests\examples\Pen;
 use Sagittaracc\PhpPythonDecorator\tests\generics\T;
 use Sagittaracc\PhpPythonDecorator\tests\generics\U;
@@ -51,7 +52,16 @@ public function testGenericFail(): void
         $this->expectException(GenericError::class);
 
         $box = new MyAnotherBox();
-        $box(Pen::class, Str::class);
-        set_decorator_prop($box, 'id', 3);
+        $box(Pen::class, Number::class);
+        set_decorator_prop($box, 'id', '3');
+    }
+
+    public function testPaymentInfo(): void
+    {
+        $this->expectException(GenericError::class);
+
+        $paymentInfo = new PaymentInfo();
+        $paymentInfo(Number::class);
+        set_decorator_prop($paymentInfo, 'currency', 'rubles');
     }
-}
+}

tests/examples/PaymentInfo.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Sagittaracc\PhpPythonDecorator\tests\examples;
+
+use Sagittaracc\PhpPythonDecorator\Decorator;
+use Sagittaracc\PhpPythonDecorator\modules\generics\aliases\T;
+
+#[T]
+class PaymentInfo
+{
+    use Decorator;
+
+    public string $id;
+
+    public int $amount;
+
+    #[T]
+    public $currency;
+}