From bb5950cd76ee2d22744d1df31add20a1a2180152 Mon Sep 17 00:00:00 2001
From: CordlessCoder <roman@vm.net.ua>
Date: Wed, 17 Sep 2025 01:23:25 +0100
Subject: [PATCH] Relax dynamic source requirement from Fn to FnMut

---
 src/channel.rs | 6 +++---
 src/types.rs   | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/channel.rs b/src/channel.rs
index 3ce9e7d..531c0bc 100644
--- a/src/channel.rs
+++ b/src/channel.rs
@@ -117,9 +117,9 @@ where
     }
 
     fn handle_get_value(&self) -> Result<Response<T>, Error> {
-        let state = self.state.lock().map_err(|_| Error::InternalError)?;
+        let mut state = self.state.lock().map_err(|_| Error::InternalError)?;
 
-        match &*state {
+        match &mut *state {
             ValueSource::Static(value) => Ok(Response::Value(value.clone())),
             ValueSource::Dynamic(closure) => {
                 let value = self.execute_closure_safely(closure);
@@ -135,7 +135,7 @@ where
 
     fn execute_closure_safely(
         &self,
-        closure: &dyn Fn() -> T,
+        closure: &mut dyn FnMut() -> T,
     ) -> Result<T, Box<dyn std::any::Any + Send>> {
         std::panic::catch_unwind(std::panic::AssertUnwindSafe(closure))
     }
diff --git a/src/types.rs b/src/types.rs
index 203a743..32eb625 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -16,7 +16,7 @@ pub enum Response<T> {
 /// Represents the source of values: either static or dynamic
 pub(crate) enum ValueSource<T> {
     Static(T),
-    Dynamic(Box<dyn Fn() -> T + Send + Sync + 'static>),
+    Dynamic(Box<dyn FnMut() -> T + Send + Sync + 'static>),
     None,    // Never set
     Cleared, // Was set but cleared (closed)
 }