improve: use rustc-hash instead of fxhash for more active support (#14)

* improve: use rustc-hash instead of fxhash for more active support

* reduce unnecessary heap allocation

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "metainfo"
-version = "0.7.8"
+version = "0.7.9"
 authors = ["Volo Team <volo@cloudwego.io>"]
 edition = "2021"
 description = "Transmissing metainfo across components."
@@ -17,7 +17,7 @@ maintenance = { status = "actively-developed" }
 [dependencies]
 ahash = "0.8"
 faststr = "0.2"
-fxhash = "0.2"
+rustc-hash = "1"
 paste = "1"
 tokio = { version = "1", optional = true }
 

src/faststr_map.rs

@@ -1,7 +1,7 @@
 use std::{any::TypeId, collections::hash_map::Entry};
 
 use faststr::FastStr;
-use fxhash::FxHashMap;
+use rustc_hash::FxHashMap;
 
 /// This is an optimized version of TypeMap to FastStr that eliminates the need to Box the values.
 ///

src/type_map.rs

@@ -4,7 +4,7 @@ use std::{
     marker::PhantomData,
 };
 
-use fxhash::FxHashMap;
+use rustc_hash::FxHashMap;
 
 pub(crate) type AnyObject = Box<dyn Any + Send + Sync>;
 
@@ -19,7 +19,7 @@ impl<'a, K, V> Entry<'a, K, V> {
     where
         V: Send + Sync + 'static,
     {
-        let v = self.inner.or_insert(Box::new(default));
+        let v = self.inner.or_insert_with(|| Box::new(default));
         v.downcast_mut().unwrap()
     }
 
@@ -54,12 +54,13 @@ impl<'a, K, V> Entry<'a, K, V> {
         }
     }
 
+    #[allow(clippy::unwrap_or_default)]
     #[inline]
     pub fn or_default(self) -> &'a mut V
     where
         V: Default + Send + Sync + 'static,
     {
-        self.or_insert(V::default())
+        self.or_insert_with(V::default)
     }
 }