psalm integration

Author: mmasiukevich

.travis.yml

@@ -26,6 +26,7 @@ install:
 script:
   - ./vendor/bin/phpunit --configuration ./phpunit.xml --coverage-clover=coverage.clover
   - if [ "$TRAVIS_PHP_VERSION" == "7.2" ]; then ./vendor/bin/psalm --config=psalm.xml; fi
+  - if [ "$TRAVIS_PHP_VERSION" == "7.2" ]; then ./vendor/bin/phpstan analyse src --level 7; fi
   - if [ "$TRAVIS_PHP_VERSION" == "7.2" ]; then ./vendor/bin/php-cs-fixer fix --allow-risky=yes --dry-run; fi
 
 after_script:

CONTRIBUTING.md

@@ -13,7 +13,8 @@
   "require-dev": {
     "php-service-bus/code-style-config": "^v0.1",
     "phpunit/phpunit": "^8",
-    "vimeo/psalm": "^v3"
+    "vimeo/psalm": "^v3",
+    "phpstan/phpstan": "^0.11.5"
   },
   "config": {
     "sort-packages": true,
@@ -39,10 +40,11 @@
   },
   "scripts": {
     "psalm": "./vendor/bin/psalm --config=psalm.xml",
+    "phpstan": "./vendor/bin/phpstan analyse src --level 7",
     "tests": "./vendor/bin/phpunit --configuration phpunit.xml --verbose",
     "coverage": "./vendor/bin/phpunit --configuration phpunit.xml --coverage-html ./coverage --verbose",
     "cs-check": "./vendor/bin/php-cs-fixer fix --allow-risky=yes --dry-run",
     "cs-fix": "./vendor/bin/php-cs-fixer fix --allow-risky=yes",
-    "pre-commit": "PHP_CS_FIXER_IGNORE_ENV=1 ./vendor/bin/php-cs-fixer fix --allow-risky=yes && ./vendor/bin/psalm --config=psalm.xml && ./vendor/bin/phpunit --configuration phpunit.xml --verbose"
+    "pre-commit": "PHP_CS_FIXER_IGNORE_ENV=1 ./vendor/bin/php-cs-fixer fix --allow-risky=yes && ./vendor/bin/psalm --config=psalm.xml && ./vendor/bin/phpstan analyse src --level 7 && ./vendor/bin/phpunit --configuration phpunit.xml --verbose"
   }
 }

LICENSE.md

@@ -0,0 +1 @@
+parameters: