[Translation] Deprecate TranslatableMessage::__toString

Author: VincentLanglet

CHANGELOG.md

@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+7.4
+---
+
+ * Deprecate `TranslatableMessage::__toString`
+
 7.3
 ---
 

Tests/TranslatableTest.php

@@ -42,6 +42,9 @@ public function testFlattenedTrans($expected, $messages, $translatable)
         $this->assertSame($expected, $translatable->trans($translator, 'fr'));
     }
 
+    /**
+     * @group legacy
+     */
     public function testToString()
     {
         $this->assertSame('Symfony is great!', (string) new TranslatableMessage('Symfony is great!'));

TranslatableMessage.php

@@ -26,8 +26,13 @@ public function __construct(
     ) {
     }
 
+    /**
+     * @deprecated since Symfony 7.4
+     */
     public function __toString(): string
     {
+        trigger_deprecation('symfony/translation', '7.4', 'Method "%s()" is deprecated.', __METHOD__);
+
         return $this->getMessage();
     }