Updated dev dependencies and minimal php version

- refactored code to new code style rules
- added language constructs allowed by php 7.4:
  - strict types directive,
  - covariant return types,
  - property type declarations
  - null coalescing operators

Author: shudd3r

composer.json

@@ -5,15 +5,13 @@
     "minimum-stability": "dev",
     "prefer-stable": true,
     "require": {
-        "php": "^7.1",
+        "php": "^7.4",
         "ext-json": "*",
         "psr/http-message": "^1.0",
         "psr/http-factory": "^1.0"
     },
     "require-dev": {
-        "polymorphine/cs": "1.0",
-        "phpunit/phpunit": "^7.0",
-        "php-coveralls/php-coveralls": "^2.0"
+        "polymorphine/dev": "0.1.*"
     },
     "license": "MIT",
     "authors": [
@@ -31,8 +29,5 @@
         "psr-4": {
             "Polymorphine\\Message\\Tests\\": "tests/"
         }
-    },
-    "scripts": {
-        "style-check": "polymorphine-cs"
     }
 }

cs-fixer.php.dist

@@ -1,5 +1,5 @@
 <?php
 
-use Polymorphine\CodeStandards\FixerFactory;
+use Polymorphine\Dev\FixerFactory;
 
 return FixerFactory::createFor('Polymorphine/Message', __DIR__);

phpunit.xml.dist

@@ -1,28 +1,22 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
 <phpunit
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/7.0/phpunit.xsd"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.5/phpunit.xsd"
+    cacheResultFile="temp/.phpunit.result.cache"
     colors="true"
     bootstrap="vendor/autoload.php"
 >
     <php>
         <ini name="error_reporting" value="-1" />
     </php>
-
     <testsuites>
-        <testsuite name="Polymorphine Psr-7 Message tests">
+        <testsuite name="Polymorphine/Message tests">
             <directory>./tests/</directory>
         </testsuite>
     </testsuites>
-
-    <filter>
-        <whitelist>
+    <coverage>
+        <include>
             <directory>./src/</directory>
-        </whitelist>
-    </filter>
-    <logging>
-        <log type="coverage-clover" target="build/logs/clover.xml"/>
-        <log type="coverage-text" target="php://stdout" showOnlySummary="true"/>
-    </logging>
+        </include>
+    </coverage>
 </phpunit>

src/Exception/StreamResourceCallException.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Polymorphine/Message package.

src/Factory/RequestFactory.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Polymorphine/Message package.

src/Factory/ResponseFactory.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Polymorphine/Message package.

src/Factory/ServerRequestFactory.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Polymorphine/Message package.

src/Factory/StreamFactory.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Polymorphine/Message package.

src/Factory/UploadedFileFactory.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Polymorphine/Message package.
@@ -20,8 +20,13 @@
 
 class UploadedFileFactory implements UploadedFileFactoryInterface
 {
-    private $serverAPI;
+    private string $serverAPI;
 
+    /**
+     * @see php_sapi_name()
+     *
+     * @param string $serverAPI interface type used by PHP
+     */
     public function __construct(string $serverAPI = 'server')
     {
         $this->serverAPI = $serverAPI;

src/Factory/UriFactory.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Polymorphine/Message package.