rename and improve phpdoc

1 files changed, 5 insertions, 5 deletions

diff --git a/src/RegionManager.php b/src/RegionManager.php
index daf49eb..006a523 100644
--- a/src/RegionManager.php
+++ b/src/RegionManager.php
@@ -7,12 +7,12 @@ namespace Zhineng\RegionChina;
 final class RegionManager
 {
     /**
-     * @param  array<string, string>  $codeToName
-     * @param  array<string, int[]>  $relationships
-     * @param  array<int, int[]>  $topLevels
+     * @param  array<string, string>  $names  The map of region codes to names.
+     * @param  array<string, int[]>  $relationships  The map of region codes to their child region codes.
+     * @param  array<int, int[]>  $topLevels  A list of top-level region codes.
      */
     public function __construct(
-        private array $codeToName,
+        private array $names,
         private array $relationships,
         private array $topLevels
     ) {
@@ -30,7 +30,7 @@ final class RegionManager
 
     public function getName(int $code): string
     {
-        return $this->codeToName[$this->groupKey($code)]
+        return $this->names[$this->groupKey($code)]
             ?? throw new RegionException('The region code does not exist.');
     }