Add return types - batch 2/n

Author: nicolas-grekas

ExecutableFinder.php

@@ -46,7 +46,7 @@ public function addSuffix(string $suffix)
      *
      * @return string|null The executable path or default value
      */
-    public function find(string $name, string $default = null, array $extraDirs = [])
+    public function find(string $name, string $default = null, array $extraDirs = []): ?string
     {
         if (ini_get('open_basedir')) {
             $searchPath = array_merge(explode(\PATH_SEPARATOR, ini_get('open_basedir')), $extraDirs);

PhpExecutableFinder.php

@@ -31,7 +31,7 @@ public function __construct()
      *
      * @return string|false The PHP executable path or false if it cannot be found
      */
-    public function find(bool $includeArgs = true)
+    public function find(bool $includeArgs = true): string|false
     {
         if ($php = getenv('PHP_BINARY')) {
             if (!is_executable($php)) {
@@ -87,7 +87,7 @@ public function find(bool $includeArgs = true)
      *
      * @return array The PHP executable arguments
      */
-    public function findArguments()
+    public function findArguments(): array
     {
         $arguments = [];
         if ('phpdbg' === \PHP_SAPI) {

PhpProcess.php

@@ -53,7 +53,7 @@ public function __construct(string $script, string $cwd = null, array $env = nul
     /**
      * {@inheritdoc}
      */
-    public static function fromShellCommandline(string $command, string $cwd = null, array $env = null, mixed $input = null, ?float $timeout = 60)
+    public static function fromShellCommandline(string $command, string $cwd = null, array $env = null, mixed $input = null, ?float $timeout = 60): static
     {
         throw new LogicException(sprintf('The "%s()" method cannot be called when using "%s".', __METHOD__, self::class));
     }