Minor documentation tweaks

examples/postgres/pooled-with-rustls/src/main.rs

@@ -11,10 +11,8 @@ use std::time::Duration;
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
  let db_url = std::env::var("DATABASE_URL").expect("Env var `DATABASE_URL` not set");
 
- let config = ManagerConfig {
- custom_setup: Box::new(establish_connection),
- ..ManagerConfig::default()
- };
+ let mut config = ManagerConfig::default();
+ config.custom_setup = Box::new(establish_connection);
 
  // First we have to construct a connection manager with our custom `establish_connection`
  // function

src/async_connection_wrapper.rs

@@ -30,7 +30,7 @@ pub trait BlockOn {
  fn get_runtime() -> Self;
 }
 
-/// A helper type that wraps an [`crate::AsyncConnectionWrapper`] to
+/// A helper type that wraps an [`AsyncConnection`][crate::AsyncConnection] to
 /// provide a sync [`diesel::Connection`] implementation.
 ///
 /// Internally this wrapper type will use `block_on` to wait for

src/pooled_connection/mod.rs

@@ -85,8 +85,10 @@ impl<C: fmt::Debug> fmt::Debug for RecyclingMethod<C> {
 
 /// Configuration object for a Manager.
 ///
-/// This currently only makes it possible to specify which [`RecyclingMethod`]
-/// should be used when retrieving existing objects from the [`Pool`].
+/// This makes it possible to specify which [`RecyclingMethod`]
+/// should be used when retrieving existing objects from the `Pool`
+/// and it allows to provide a custom setup function.
+#[non_exhaustive]
 pub struct ManagerConfig<C> {
  /// Method of how a connection is recycled. See [RecyclingMethod].
  pub recycling_method: RecyclingMethod<C>,