chore: const fns

crates/providers/src/builder.rs

@@ -39,7 +39,7 @@ pub struct Stack<Inner, Outer> {
 
 impl<Inner, Outer> Stack<Inner, Outer> {
     /// Create a new `Stack`.
-    pub fn new(inner: Inner, outer: Outer) -> Self {
+    pub const fn new(inner: Inner, outer: Outer) -> Self {
         Stack { inner, outer }
     }
 }
@@ -74,7 +74,8 @@ pub struct ProviderBuilder<L, N = ()> {
 }
 
 impl<N> ProviderBuilder<Identity, N> {
-    pub fn new() -> Self {
+    /// Create a new [`ProviderBuilder`].
+    pub const fn new() -> Self {
         ProviderBuilder { layer: Identity, network: PhantomData }
     }
 }

crates/providers/src/heart.rs

@@ -30,7 +30,7 @@ pub struct WatchConfig {
 
 impl WatchConfig {
     /// Create a new watch for a transaction.
-    pub fn new(tx_hash: B256) -> Self {
+    pub const fn new(tx_hash: B256) -> Self {
         Self { tx_hash, confirmations: 0, timeout: None }
     }
 
@@ -40,7 +40,7 @@ impl WatchConfig {
     }
 
     /// Set the number of confirmations to wait for.
-    pub fn with_confirmations(mut self, confirmations: u64) -> Self {
+    pub const fn with_confirmations(mut self, confirmations: u64) -> Self {
         self.confirmations = confirmations;
         self
     }
@@ -51,7 +51,7 @@ impl WatchConfig {
     }
 
     /// Set the timeout for the transaction.
-    pub fn with_timeout(mut self, timeout: Duration) -> Self {
+    pub const fn with_timeout(mut self, timeout: Duration) -> Self {
         self.timeout = Some(timeout);
         self
     }
@@ -129,7 +129,7 @@ impl HeartbeatHandle {
 
     /// Returns a watcher that always sees the latest block.
     #[allow(dead_code)]
-    pub(crate) fn latest(&self) -> &watch::Receiver<Option<Block>> {
+    pub(crate) const fn latest(&self) -> &watch::Receiver<Option<Block>> {
         &self.latest
     }
 }

crates/providers/src/lib.rs

@@ -9,7 +9,7 @@
     // missing_debug_implementations,
     // missing_docs,
     unreachable_pub,
-    // clippy::missing_const_for_fn,
+    clippy::missing_const_for_fn,
     rustdoc::all
 )]
 #![cfg_attr(not(test), warn(unused_crate_dependencies))]

crates/providers/src/signer.rs

@@ -27,13 +27,14 @@ use std::marker::PhantomData;
 /// provider.send_transaction(TransactionRequest::default()).await;
 /// # }
 /// ```
+#[derive(Debug)]
 pub struct SignerLayer<S> {
     signer: S,
 }
 
 impl<S> SignerLayer<S> {
     /// Creates a new signing layer with the given signer.
-    pub fn new(signer: S) -> Self {
+    pub const fn new(signer: S) -> Self {
         Self { signer }
     }
 }