From a5185346f7714b380df3d7038a541660dc2ba434 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Roll=C3=A9n?=
 <38324289+SebRollen@users.noreply.github.com>
Date: Tue, 16 Nov 2021 15:52:00 -0500
Subject: [PATCH] fix: require functions in paginators to be thread-safe (#12)

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

diff --git a/src/pagination.rs b/src/pagination.rs
index 4087b67..502ad03 100644
--- a/src/pagination.rs
+++ b/src/pagination.rs
@@ -88,12 +88,12 @@ pub mod query {
 
     /// A paginator that implements pagination through one or more query parameters.
     pub struct QueryPaginator<T, U> {
-        f: Box<dyn Fn(Option<&U>, &T) -> Option<U>>,
+        f: Box<dyn 'static + Send + Sync + Fn(Option<&U>, &T) -> Option<U>>,
         _phantom: std::marker::PhantomData<T>,
     }
 
     impl<T, U> QueryPaginator<T, U> {
-        pub fn new<F: 'static + Fn(Option<&U>, &T) -> Option<U>>(f: F) -> Self {
+        pub fn new<F: 'static + Send + Sync + Fn(Option<&U>, &T) -> Option<U>>(f: F) -> Self {
             Self {
                 f: Box::new(f),
                 _phantom: std::marker::PhantomData,
@@ -166,12 +166,12 @@ pub mod path {
     /// the paginator should return the path segment number and the new path segment, e.g. (2, "foo")
     /// represents changing the third path segment to "foo"
     pub struct PathPaginator<T, U> {
-        f: Box<dyn Fn(Option<&U>, &T) -> Option<U>>,
+        f: Box<dyn 'static + Send + Sync + Fn(Option<&U>, &T) -> Option<U>>,
         _phantom: std::marker::PhantomData<T>,
     }
 
     impl<T, U> PathPaginator<T, U> {
-        pub fn new<F: 'static + Fn(Option<&U>, &T) -> Option<U>>(f: F) -> Self {
+        pub fn new<F: 'static + Send + Sync + Fn(Option<&U>, &T) -> Option<U>>(f: F) -> Self {
             Self {
                 f: Box::new(f),
                 _phantom: std::marker::PhantomData,