First commit

packages/mmt/ddd-shared-kernel/ValueObjects/Price.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace MMT\DDDSharedKernel\ValueObjects;
+
+class Price extends ValueObject
+{
+    public function __construct(
+        private Money $money
+    )
+    {
+        if($this->money->isNegative()) {
+            throw new \InvalidArgumentException("The price cannot be negative");
+        }
+    }
+}