Reproduce autoloader bug

.github/workflows/e2e-tests.yml

@@ -390,7 +390,10 @@ jobs:
  cd e2e/composer-version-config
  composer install
  ../../bin/phpstan analyze test.php --level=0
-
+ - script: |
+ cd e2e/bug-12972b
+ composer install
+ ../../bin/phpstan analyze
  steps:
  - name: "Checkout"
  uses: actions/checkout@v4

e2e/bug-12972b/.gitignore

@@ -0,0 +1,2 @@
+/vendor/
+composer.lock

e2e/bug-12972b/autoloader.php

@@ -0,0 +1,9 @@
+<?php
+
+require_once __DIR__ . '/vendor/autoload.php';
+
+spl_autoload_register(function($class) {
+if ($class === \other12972\MyClass::class) {
+throw new LogicException('this should not happen');
+}
+});

e2e/bug-12972b/composer.json

@@ -0,0 +1,7 @@
+{
+"autoload": {
+"classmap": [
+"src/"
+]
+}
+}

e2e/bug-12972b/phpstan.dist.neon

@@ -0,0 +1,8 @@
+parameters:
+ level: 9
+
+ paths:
+ - src
+
+ bootstrapFiles:
+ - autoloader.php

e2e/bug-12972b/real-world.php

@@ -0,0 +1,6 @@
+<?php
+
+require 'autoloader.php';
+
+$root = new \Foo12972\MyRoot();
+$root->doBar(new \other12972\MyClass());

e2e/bug-12972b/src/folder/file2.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace Foo12972;
+
+use other12972\MyClass;
+
+class MyRoot {
+function doBar(MyClass $myClass):void {}
+}

e2e/bug-12972b/src/other/file.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace other12972;
+
+class MyClass {
+public function doSomething(): int
+{
+return 1;
+}
+}