From 8a78cd0c5f2724a6dcf3f289a53c9c5fa4062ef4 Mon Sep 17 00:00:00 2001
From: Markus Staab <maggus.staab@googlemail.com>
Date: Sun, 10 May 2026 07:47:09 +0200
Subject: [PATCH] name-collision-detector

---
 .gitattributes              |  1 +
 .github/workflows/build.yml | 26 ++++++++++++++++++++++++++
 Makefile                    |  3 +++
 collision-detector.json     |  3 +++
 composer.json               |  1 +
 5 files changed, 34 insertions(+)
 create mode 100644 collision-detector.json

diff --git a/.gitattributes b/.gitattributes
index 8fb4d8b..96f533d 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -11,3 +11,4 @@ Makefile export-ignore
 phpstan.neon export-ignore
 phpstan-baseline.neon export-ignore
 phpunit.xml export-ignore
+collision-detector.json export-ignore
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3b85d0b..48fc4cf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -185,3 +185,29 @@ jobs:
 
       - name: "PHPStan"
         run: "make phpstan"
+
+  name-collision:
+    name: "Name Collision Detector"
+
+    runs-on: "ubuntu-latest"
+    timeout-minutes: 60
+
+    steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@5ef0c079ce82195b2a36a210272d6b661572d83e # v2.14.2
+        with:
+          egress-policy: audit
+
+      - name: "Checkout"
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@44454db4f0199b8b9685a5d763dc37cbf79108e1" # v2
+        with:
+          coverage: "none"
+          php-version: "8.5"
+
+      - uses: "ramsey/composer-install@3cf229dc2919194e9e36783941438d17239e8520" # v3
+
+      - name: "Name Collision Detector"
+        run: "make name-collision"
diff --git a/Makefile b/Makefile
index 1ee557d..b1889a8 100644
--- a/Makefile
+++ b/Makefile
@@ -31,3 +31,6 @@ phpstan:
 .PHONY: phpstan-generate-baseline
 phpstan-generate-baseline:
 	php vendor/bin/phpstan analyse -l 8 -c phpstan.neon src tests -b phpstan-baseline.neon
+
+name-collision:
+	php vendor/bin/detect-collisions --configuration collision-detector.json
diff --git a/collision-detector.json b/collision-detector.json
new file mode 100644
index 0000000..1d85c2b
--- /dev/null
+++ b/collision-detector.json
@@ -0,0 +1,3 @@
+{
+  "scanPaths": ["src", "tests"]
+}
diff --git a/composer.json b/composer.json
index 2e48680..8d20484 100644
--- a/composer.json
+++ b/composer.json
@@ -17,6 +17,7 @@
 		"phpstan/phpstan-phpunit": "^2.0.10",
 		"phpstan/phpstan-strict-rules": "^2.0",
 		"phpunit/phpunit": "^9.6",
+		"shipmonk/name-collision-detector": "^2.1",
 		"webmozart/assert": "^1.11.0 || ^2.0"
 	},
 	"config": {