lint code with rust 1.76

Author: zoedberg

lightning-invoice/src/lib.rs

@@ -83,9 +83,9 @@ mod prelude {
 	#[cfg(feature = "hashbrown")]
 	extern crate hashbrown;
 
-	pub use alloc::{vec, vec::Vec, string::String, collections::VecDeque, boxed::Box};
+	pub use alloc::{vec, vec::Vec, string::String};
 	#[cfg(not(feature = "hashbrown"))]
-	pub use std::collections::{HashMap, HashSet, hash_map};
+	pub use std::collections::{HashMap, hash_map};
 	#[cfg(feature = "hashbrown")]
 	pub use self::hashbrown::{HashMap, HashSet, hash_map};
 
@@ -96,9 +96,7 @@ use crate::prelude::*;
 
 /// Sync compat for std/no_std
 #[cfg(feature = "std")]
-mod sync {
-	pub use ::std::sync::{Mutex, MutexGuard};
-}
+mod sync;
 
 /// Sync compat for std/no_std
 #[cfg(not(feature = "std"))]

lightning-invoice/src/sync.rs

@@ -1,12 +1,6 @@
-use core::cell::{RefCell, RefMut};
+use core::cell::RefMut;
 use core::ops::{Deref, DerefMut};
 
-pub type LockResult<Guard> = Result<Guard, ()>;
-
-pub struct Mutex<T: ?Sized> {
-	inner: RefCell<T>
-}
-
 #[must_use = "if unused the Mutex will immediately unlock"]
 pub struct MutexGuard<'a, T: ?Sized + 'a> {
 	lock: RefMut<'a, T>,
@@ -25,13 +19,3 @@ impl<T: ?Sized> DerefMut for MutexGuard<'_, T> {
 		self.lock.deref_mut()
 	}
 }
-
-impl<T> Mutex<T> {
-	pub fn new(inner: T) -> Mutex<T> {
-		Mutex { inner: RefCell::new(inner) }
-	}
-
-	pub fn lock<'a>(&'a self) -> LockResult<MutexGuard<'a, T>> {
-		Ok(MutexGuard { lock: self.inner.borrow_mut() })
-	}
-}