Merge pull request #56 from php-api-clients/phpstan

Add PHPStan

Author: WyriHaximus

Makefile

@@ -31,6 +31,9 @@ infection:
 unit:
 	composer run-script unit --timeout=0
 
+stan:
+	composer run-script stan --timeout=0
+
 unit-coverage:
 	composer run-script unit-coverage --timeout=0
 

composer.json

@@ -19,6 +19,7 @@
     "jakub-onderka/php-parallel-lint": "^1.0.0",
     "localheinz/composer-normalize": "^1.0.0",
     "nunomaduro/collision": "^2.1",
+    "phpstan/phpstan": "^0.10.7",
     "phpunit/phpunit": "^7.5"
   },
   "require-dev": {},
@@ -73,13 +74,15 @@
       "composer normalize --ansi",
       "@lint-php",
       "@cs",
+      "@stan",
       "@unit"
     ],
     "qa-all-extended": [
       "composer validate --ansi",
       "composer normalize --ansi",
       "@lint-php",
       "@cs",
+      "@stan",
       "@unit-coverage",
       "@infection"
     ],
@@ -98,8 +101,13 @@
     "qa-windows": [
       "@lint-php",
       "@cs",
+      "@stan",
       "@unit"
     ],
+    "stan": [
+      "@ensure-installed",
+      "phpstan analyse src tests --level max --ansi"
+    ],
     "unit": [
       "@ensure-installed",
       "phpunit --colors=always -c phpunit.xml.dist"