Add PHPStan and level to max (#168)

* tests: update to PHPUnit 6.0 with rector

* fix namespaces on tests

* composer + tests: use standard test namespace naming

* update travis

* resolve conflict

* phpstan lvl 2

* phpstan lvl 3

* phpstan lvl 4

* phpstan lvl 5

* phpstan lvl 6

* phpstan lvl 7

* level max

* resolve conflict

* [cs] clean empty docs

* composer: bump to PHPUnit 6.4

* cleanup

* composer + travis: add phpstan

* phpstan lvl 1

* composer: update dev deps

* phpstan fixes

* update Contributing with new tools

* docs: link fixes, PHP version update

* composer: drop php-cs-fixer, cs already handled by ecs

* ecs: add old set rules

* [cs] apply rest of rules

.travis.yml

@@ -31,6 +31,7 @@ install:
 script:
   - vendor/bin/phpunit $PHPUNIT_FLAGS
   - if [[ $STATIC_ANALYSIS != "" ]]; then vendor/bin/ecs check src tests; fi
+  - if [[ $STATIC_ANALYSIS != "" ]]; then vendor/bin/phpstan.phar analyse src tests --level max --configuration phpstan.neon; fi
 
 after_success:
   - |

CONTRIBUTING.md

@@ -6,31 +6,40 @@ code base clean, unified and future proof.
 
 ## Branch
 
-You should only open pull requests against the master branch.
+You should only open pull requests against the `master` branch.
 
 ## Unit-Tests
 
 Please try to add a test for your pull-request. You can run the unit-tests by calling:
 
-```
-bin/phpunit
+```bash
+vendor/bin/phpunit
 ```
 
 ## Travis
 
-GitHub automatically run your pull request through Travis CI against PHP 7. 
-If you break the tests, I cannot merge your code, so please make sure that your code is working 
-before opening up a Pull-Request.
+GitHub automatically run your pull request through Travis CI.
+If you break the tests, I cannot merge your code, so please make sure that your code is working before opening up a Pull-Request.
 
 ## Merge
 
 Please allow me time to review your pull requests. I will give my best to review everything as fast as possible, but cannot always live up to my own expectations.
 
-## Coding Standards
+## Coding Standards & Static Analysis
+
+When contributing code to PHP-ML, you must follow its coding standards. To do that, just run:
+
+```bash
+vendor/bin/ecs check src tests --fix
+```
+[More about EasyCodingStandard](https://github.com/Symplify/EasyCodingStandard)
+
+Code has to also pass static analysis by [PHPStan](https://github.com/phpstan/phpstan):
 
-When contributing code to PHP-ML, you must follow its coding standards. It's as easy as executing `./bin/php-cs-fixer fix` in root directory.
+```bash
+vendor/bin/phpstan.phar analyse src tests --level max --configuration phpstan.neon
+```
 
-More about PHP-CS-Fixer: [http://cs.sensiolabs.org/](http://cs.sensiolabs.org/)
 
 ## Documentation
 

composer.json

@@ -11,19 +11,24 @@
             "email": "[email protected]"
         }
     ],
-    "autoload": {
-        "psr-4": {
-            "Phpml\\": "src/Phpml"
-        }
-    },
     "require": {
         "php": "^7.1"
     },
     "require-dev": {
         "phpunit/phpunit": "^6.4",
-        "friendsofphp/php-cs-fixer": "^2.4",
-        "symplify/easy-coding-standard": "dev-master as 2.5",
-        "symplify/coding-standard": "dev-master as 2.5",
-        "symplify/package-builder": "dev-master#3604bea as 2.5"
+        "symplify/easy-coding-standard": "v3.0.0-RC3",
+        "symplify/coding-standard": "v3.0.0-RC3",
+        "symplify/package-builder": "v3.0.0-RC3",
+        "phpstan/phpstan-shim": "^0.8"
+    },
+    "autoload": {
+        "psr-4": {
+            "Phpml\\": "src/Phpml"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Phpml\\Tests\\": "tests/Phpml"
+        }
     }
 }