Several 'framework' fixes

src/AbstractCommand.php

@@ -17,13 +17,13 @@ abstract class AbstractCommand extends Command
      * @var string[] The data to use.
      * @psalm-suppress PropertyNotSetInConstructor
      */
-    protected array $data;
+    protected ?array $data = null;
 
     /**
      * @var string[] The example data.
      * @psalm-suppress PropertyNotSetInConstructor
      */
-    protected array $exampleData;
+    protected ?array $exampleData = null;
 
     /**
      * @var string The title.
@@ -102,7 +102,7 @@ abstract class AbstractCommand extends Command
     /**
      * Solve the given data for part one of the puzzle.
      *
-     * @param array $data The data to process.
+     * @param string[] $data The data to process.
      *
      * @return int|string The result or null if not (yet?) implemented.
      */
@@ -114,7 +114,7 @@ abstract class AbstractCommand extends Command
     /**
      * Solve the given data for part one of the puzzle.
      *
-     * @param array $data The data to process.
+     * @param string[] $data The data to process.
      *
      * @return int|string The result or null if not (yet?) implemented.
      */

src/Day2.php

@@ -17,7 +17,6 @@ class Day2 extends AbstractCommand
         $depth = 0;
         $horizontal = 0;
 
-        /** @var string $current */
         foreach ($data as $current) {
             /**
              * @var string $direction
@@ -44,7 +43,6 @@ class Day2 extends AbstractCommand
         $depth = 0;
         $horizontal = 0;
 
-        /** @var string $current */
         foreach ($data as $current) {
             /**
              * @var string $direction

src/Puzzle.php

@@ -17,6 +17,9 @@ class Puzzle extends Command
             ->addArgument('day', InputArgument::REQUIRED, 'The day number.');
     }
 
+    /**
+     * @return int
+     */
     protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $contents = file_get_contents(sprintf('%s/../data/day%s/puzzle.md', __DIR__, (int) $input->getArgument('day')));