Use `Fn` instead of `FnMut` for call results as they will be called at most once

1 files changed, 8 insertions, 8 deletions

diff --git a/src/user_stats.rs b/src/user_stats.rs
index 000ffab..d085313 100644
--- a/src/user_stats.rs
+++ b/src/user_stats.rs
@@ -16,8 +16,8 @@ const CALLBACK_BASE_ID: i32 = 1100;
 
 impl <Manager> UserStats<Manager> {
 
-    pub fn find_leaderboard<F>(&self, name: &str, mut cb: F)
-        where F: FnMut(Result<Option<Leaderboard>, SteamError>) + 'static + Send
+    pub fn find_leaderboard<F>(&self, name: &str, cb: F)
+        where F: Fn(Result<Option<Leaderboard>, SteamError>) + 'static + Send
     {
         unsafe {
             let name = CString::new(name).unwrap();
@@ -38,8 +38,8 @@ impl <Manager> UserStats<Manager> {
         }
     }
 
-    pub fn find_or_create_leaderboard<F>(&self, name: &str, sort_method: LeaderboardSortMethod, display_type: LeaderboardDisplayType, mut cb: F)
-        where F: FnMut(Result<Option<Leaderboard>, SteamError>) + 'static + Send
+    pub fn find_or_create_leaderboard<F>(&self, name: &str, sort_method: LeaderboardSortMethod, display_type: LeaderboardDisplayType, cb: F)
+        where F: Fn(Result<Option<Leaderboard>, SteamError>) + 'static + Send
     {
         unsafe {
             let name = CString::new(name).unwrap();
@@ -73,8 +73,8 @@ impl <Manager> UserStats<Manager> {
         }
     }
 
-    pub fn upload_leaderboard_score<F>(&self, leaderboard: &Leaderboard, method: UploadScoreMethod, score: i32, details: &[i32], mut cb: F)
-        where F: FnMut(Result<Option<LeaderboardScoreUploaded>, SteamError>) + 'static + Send
+    pub fn upload_leaderboard_score<F>(&self, leaderboard: &Leaderboard, method: UploadScoreMethod, score: i32, details: &[i32], cb: F)
+        where F: Fn(Result<Option<LeaderboardScoreUploaded>, SteamError>) + 'static + Send
     {
         unsafe {
             let method = match method {
@@ -108,9 +108,9 @@ impl <Manager> UserStats<Manager> {
         leaderboard: &Leaderboard,
         request: LeaderboardDataRequest, start: usize, end: usize,
         max_details_len: usize,
-        mut cb: F
+        cb: F
     )
-        where F: FnMut(Result<Vec<LeaderboardEntry>, SteamError>) + 'static + Send
+        where F: Fn(Result<Vec<LeaderboardEntry>, SteamError>) + 'static + Send
     {
         unsafe {
             let request = match request {