Add PHPStan for our lovely new code.

johnbillion · johnbillion · commit f6c7d9de8ac3 · 2021-12-03T00:37:01.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -48,3 +48,5 @@ script:
   - "git diff --exit-code"
   # Execute stubs
   - "php -f wordpress-stubs.php"
+  # Analyse our code
+  - "vendor/bin/phpstan"
diff --git a/composer.json b/composer.json
@@ -15,6 +15,7 @@
         "php": "~7.3 || ~8.0",
         "phpdocumentor/reflection-docblock": "^5.3",
         "php-stubs/generator": "^0.8.0",
+        "phpstan/phpstan": "^1.2",
         "nikic/php-parser": "< 4.12.0"
     },
     "suggest": {
diff --git a/phpstan.neon b/phpstan.neon
@@ -0,0 +1,4 @@
+parameters:
+    level: 8
+    paths:
+        - visitor.php
