Merge branch '5.1' into 5.2

* 5.1:
  CS: Apply ternary_to_null_coalescing fixer

Author: derrabus

Loader/YamlFileLoader.php

@@ -113,9 +113,9 @@ public function supports($resource, string $type = null)
      */
     protected function parseRoute(RouteCollection $collection, string $name, array $config, string $path)
     {
-        $defaults = isset($config['defaults']) ? $config['defaults'] : [];
-        $requirements = isset($config['requirements']) ? $config['requirements'] : [];
-        $options = isset($config['options']) ? $config['options'] : [];
+        $defaults = $config['defaults'] ?? [];
+        $requirements = $config['requirements'] ?? [];
+        $options = $config['options'] ?? [];
 
         foreach ($requirements as $placeholder => $requirement) {
             if (\is_int($placeholder)) {
@@ -161,15 +161,15 @@ protected function parseRoute(RouteCollection $collection, string $name, array $
      */
     protected function parseImport(RouteCollection $collection, array $config, string $path, string $file)
     {
-        $type = isset($config['type']) ? $config['type'] : null;
-        $prefix = isset($config['prefix']) ? $config['prefix'] : '';
-        $defaults = isset($config['defaults']) ? $config['defaults'] : [];
-        $requirements = isset($config['requirements']) ? $config['requirements'] : [];
-        $options = isset($config['options']) ? $config['options'] : [];
-        $host = isset($config['host']) ? $config['host'] : null;
-        $condition = isset($config['condition']) ? $config['condition'] : null;
-        $schemes = isset($config['schemes']) ? $config['schemes'] : null;
-        $methods = isset($config['methods']) ? $config['methods'] : null;
+        $type = $config['type'] ?? null;
+        $prefix = $config['prefix'] ?? '';
+        $defaults = $config['defaults'] ?? [];
+        $requirements = $config['requirements'] ?? [];
+        $options = $config['options'] ?? [];
+        $host = $config['host'] ?? null;
+        $condition = $config['condition'] ?? null;
+        $schemes = $config['schemes'] ?? null;
+        $methods = $config['methods'] ?? null;
         $trailingSlashOnRoot = $config['trailing_slash_on_root'] ?? true;
         $namePrefix = $config['name_prefix'] ?? null;
         $exclude = $config['exclude'] ?? null;

Matcher/TraceableUrlMatcher.php

@@ -146,7 +146,7 @@ protected function matchCollection(string $pathinfo, RouteCollection $routes)
 
             $this->addTrace('Route matches!', self::ROUTE_MATCHES, $name, $route);
 
-            return $this->getAttributes($route, $name, array_replace($matches, $hostMatches, isset($status[1]) ? $status[1] : []));
+            return $this->getAttributes($route, $name, array_replace($matches, $hostMatches, $status[1] ?? []));
         }
 
         return [];

Matcher/UrlMatcher.php

@@ -192,7 +192,7 @@ protected function matchCollection(string $pathinfo, RouteCollection $routes)
                 continue;
             }
 
-            return $this->getAttributes($route, $name, array_replace($matches, $hostMatches, isset($status[1]) ? $status[1] : []));
+            return $this->getAttributes($route, $name, array_replace($matches, $hostMatches, $status[1] ?? []));
         }
 
         return [];

RequestContext.php

@@ -293,7 +293,7 @@ public function setParameters(array $parameters)
      */
     public function getParameter(string $name)
     {
-        return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
+        return $this->parameters[$name] ?? null;
     }
 
     /**

Route.php

@@ -300,7 +300,7 @@ public function setOption(string $name, $value)
      */
     public function getOption(string $name)
     {
-        return isset($this->options[$name]) ? $this->options[$name] : null;
+        return $this->options[$name] ?? null;
     }
 
     /**
@@ -369,7 +369,7 @@ public function addDefaults(array $defaults)
      */
     public function getDefault(string $name)
     {
-        return isset($this->defaults[$name]) ? $this->defaults[$name] : null;
+        return $this->defaults[$name] ?? null;
     }
 
     /**
@@ -457,7 +457,7 @@ public function addRequirements(array $requirements)
      */
     public function getRequirement(string $key)
     {
-        return isset($this->requirements[$key]) ? $this->requirements[$key] : null;
+        return $this->requirements[$key] ?? null;
     }
 
     /**

RouteCollection.php

@@ -114,7 +114,7 @@ public function all()
      */
     public function get(string $name)
     {
-        return isset($this->routes[$name]) ? $this->routes[$name] : null;
+        return $this->routes[$name] ?? null;
     }
 
     /**