Add types to private and internal properties

Author: nicolas-grekas

Command/CompleteCommand.php

@@ -44,9 +44,9 @@ final class CompleteCommand extends Command
      */
     protected static $defaultDescription = 'Internal command to provide shell completion suggestions';
 
-    private $completionOutputs;
+    private array $completionOutputs;
 
-    private $isDebug = false;
+    private bool $isDebug = false;
 
     /**
      * @param array<string, class-string<CompletionOutputInterface>> $completionOutputs A list of additional completion outputs, with shell name as key and FQCN as value

Completion/CompletionInput.php

@@ -31,11 +31,11 @@ final class CompletionInput extends ArgvInput
     public const TYPE_OPTION_NAME = 'option_name';
     public const TYPE_NONE = 'none';
 
-    private $tokens;
-    private $currentIndex;
-    private $completionType;
-    private $completionName;
-    private $completionValue = '';
+    private array $tokens;
+    private int $currentIndex;
+    private string $completionType;
+    private ?string $completionName = null;
+    private string $completionValue = '';
 
     /**
      * Converts a terminal string into tokens.

Completion/CompletionSuggestions.php

@@ -20,8 +20,8 @@
  */
 final class CompletionSuggestions
 {
-    private $valueSuggestions = [];
-    private $optionSuggestions = [];
+    private array $valueSuggestions = [];
+    private array $optionSuggestions = [];
 
     /**
      * Add a suggested value for an input option or argument.

Tester/CommandCompletionTester.php

@@ -22,7 +22,7 @@
  */
 class CommandCompletionTester
 {
-    private $command;
+    private Command $command;
 
     public function __construct(Command $command)
     {