[runtime] relax Fn trait bound

SchrodingerZhu · Apr 1, 2024 · 77cbc4e · 77cbc4e
1 parent 75cd493
commit 77cbc4e
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/rura-internal-macros/src/lib.rs b/rura-internal-macros/src/lib.rs
@@ -45,7 +45,7 @@ fn generate_from_impl(total_cnt: usize) -> TokenStream {
 
  quote::quote! {
  impl<#(#full_ident : Clone + 'static,)*R : 'static, F> From<F> for Closure<(#(#full_ident,)*), R>
- where F : Fn((#(#full_ident,)*)) -> R + Clone + 'static
+ where F : FnOnce((#(#full_ident,)*)) -> R + Clone + 'static
  {
  fn from(code: F) -> Self {
  Closure (Rc::new(Thunk {

diff --git a/rura-runtime/src/closure.rs b/rura-runtime/src/closure.rs
@@ -38,15 +38,15 @@ rura_internal_macros::generate_from_impls!();
 
 pub struct Thunk<F, P: PartialParams, R>
 where
- F: Fn(P::Full) -> R + Clone,
+ F: FnOnce(P::Full) -> R + Clone,
 {
  code: F,
  params: P,
 }
 
 impl<P: PartialParams + Clone, R, F> Clone for Thunk<F, P, R>
 where
- F: Fn(P::Full) -> R + Clone,
+ F: FnOnce(P::Full) -> R + Clone,
 {
  fn clone(&self) -> Self {
  Thunk {
@@ -64,7 +64,7 @@ pub trait BoxedClosure<P: Params, R> {
 
 impl<F, P, R> BoxedClosure<P::Pending, R> for Thunk<F, P, R>
 where
- F: Fn(P::Full) -> R + Clone + 'static,
+ F: FnOnce(P::Full) -> R + Clone + 'static,
  P: PartialParams + Clone + 'static,
  R: 'static,
 {