From a5e6e82bc075f821cd00322972aebbbace41c1c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20Vo=C5=99=C3=AD=C5=A1ek?= <mvorisek@mvorisek.cz>
Date: Sat, 1 Jul 2023 17:26:14 +0200
Subject: [PATCH] TypeRegistry registry constructor must check for duplicate
 instances

---
 src/Types/TypeRegistry.php | 28 ++++++++--------------------
 1 file changed, 8 insertions(+), 20 deletions(-)

diff --git a/src/Types/TypeRegistry.php b/src/Types/TypeRegistry.php
index 2d575b61ae9..d67216b1323 100644
--- a/src/Types/TypeRegistry.php
+++ b/src/Types/TypeRegistry.php
@@ -16,13 +16,14 @@ final class TypeRegistry
 {
     /** @var array<string, Type> Map of type names and their corresponding flyweight objects. */
     private array $instances;
-    /** @var array<int, string>|null */
-    private ?array $instancesReverseIndex = null;
+    /** @var array<int, string> */
+    private array $instancesReverseIndex;
 
     /** @param array<string, Type> $instances */
     public function __construct(array $instances = [])
     {
-        $this->instances = [];
+        $this->instances             = [];
+        $this->instancesReverseIndex = [];
         foreach ($instances as $name => $type) {
             $this->register($name, $type);
         }
@@ -81,10 +82,8 @@ public function register(string $name, Type $type): void
             throw Exception::typeAlreadyRegistered($type);
         }
 
-        $this->instances[$name] = $type;
-        if ($this->instancesReverseIndex !== null) {
-            $this->instancesReverseIndex[spl_object_id($type)] = $name;
-        }
+        $this->instances[$name]                            = $type;
+        $this->instancesReverseIndex[spl_object_id($type)] = $name;
     }
 
     /**
@@ -102,10 +101,8 @@ public function override(string $name, Type $type): void
             throw Exception::typeAlreadyRegistered($type);
         }
 
-        $this->instances[$name] = $type;
-        if ($this->instancesReverseIndex !== null) {
-            $this->instancesReverseIndex[spl_object_id($type)] = $name;
-        }
+        $this->instances[$name]                            = $type;
+        $this->instancesReverseIndex[spl_object_id($type)] = $name;
     }
 
     /**
@@ -122,15 +119,6 @@ public function getMap(): array
 
     private function findTypeName(Type $type): ?string
     {
-        if ($this->instancesReverseIndex === null) {
-            $reverseIndex = [];
-            foreach ($this->instances as $name => $v) {
-                $reverseIndex[spl_object_id($v)] = $name;
-            }
-
-            $this->instancesReverseIndex = $reverseIndex;
-        }
-
         $name = $this->instancesReverseIndex[spl_object_id($type)] ?? null;
         if ($name !== null && $this->instances[$name] === $type) {
             return $name;