From 3a3cd121ce7cd032f94fb8f881ba3b5f145e3f40 Mon Sep 17 00:00:00 2001
From: Sebastian Bergmann <sb@sebastian-bergmann.de>
Date: Thu, 4 Apr 2024 10:53:00 +0200
Subject: [PATCH] Fix issues identified by Psalm

---
 src/Parser.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/Parser.php b/src/Parser.php
index ab2d975..32148c9 100644
--- a/src/Parser.php
+++ b/src/Parser.php
@@ -53,7 +53,7 @@ public function parse(array $argv, string $shortOptions, ?array $longOptions = n
         $options    = [];
         $nonOptions = [];
 
-        if ($longOptions) {
+        if ($longOptions !== null) {
             sort($longOptions);
         }
 
@@ -82,7 +82,7 @@ public function parse(array $argv, string $shortOptions, ?array $longOptions = n
                 break;
             }
 
-            if ($arg[0] !== '-' || (strlen($arg) > 1 && $arg[1] === '-' && !$longOptions)) {
+            if ($arg[0] !== '-' || (strlen($arg) > 1 && $arg[1] === '-' && $longOptions === null)) {
                 $nonOptions[] = $arg;
 
                 continue;
@@ -135,7 +135,7 @@ private function parseShortOption(string $argument, string $shortOptions, array
                 if (!(strlen($spec) > 2 && $spec[2] === ':')) {
                     $optionArgument = current($argv);
 
-                    if (!$optionArgument) {
+                    if ($optionArgument === false) {
                         throw new RequiredOptionArgumentMissingException('-' . $option);
                     }
 
@@ -191,7 +191,7 @@ private function parseLongOption(string $argument, array $longOptions, array &$o
 
                     next($argv);
                 }
-            } elseif ($optionArgument) {
+            } elseif ($optionArgument !== null) {
                 throw new OptionDoesNotAllowArgumentException('--' . $option);
             }