Merge pull request #53 from GrigorenkoPV/as_ref

Add some AsRef impls
droundy · Jul 19, 2024 · e521f1c · e521f1c
2 parents 35faf06 + 9247935
commit e521f1c
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Showing 3 changed files with 55 additions and 0 deletions.
diff --git a/src/arc.rs b/src/arc.rs
@@ -6,8 +6,10 @@ type Container<T> = DashMap<BoxRefCount<T>, (), RandomState>;
 type Untyped = &'static (dyn Any + Send + Sync + 'static);
 use std::borrow::Borrow;
 use std::convert::AsRef;
+use std::ffi::OsStr;
 use std::hash::{Hash, Hasher};
 use std::ops::Deref;
+use std::path::Path;
 use std::sync::atomic::AtomicUsize;
 use std::sync::atomic::Ordering;
 
@@ -304,6 +306,23 @@ impl<T: ?Sized + Send + Sync + Hash + Eq> AsRef<T> for ArcIntern<T> {
     }
 }
 
+macro_rules! impl_as_ref {
+    ($from:ty => $to:ty) => {
+        impl AsRef<$to> for ArcIntern<$from> {
+            #[inline(always)]
+            fn as_ref(&self) -> &$to {
+                let ptr: &$from = &*self;
+                ptr.as_ref()
+            }
+        }
+    };
+}
+
+impl_as_ref!(str => OsStr);
+impl_as_ref!(str => Path);
+impl_as_ref!(OsStr => Path);
+impl_as_ref!(Path => OsStr);
+
 impl<T: ?Sized + Eq + Hash + Send + Sync> Deref for ArcIntern<T> {
     type Target = T;
     fn deref(&self) -> &T {

diff --git a/src/intern.rs b/src/intern.rs
@@ -3,9 +3,11 @@ use super::boxedset;
 use boxedset::HashSet;
 use std::borrow::Borrow;
 use std::convert::AsRef;
+use std::ffi::OsStr;
 use std::fmt::{Debug, Display, Pointer};
 use std::hash::{Hash, Hasher};
 use std::ops::Deref;
+use std::path::Path;
 
 use super::container;
 
@@ -324,6 +326,22 @@ impl<T: ?Sized> AsRef<T> for Intern<T> {
     }
 }
 
+macro_rules! impl_as_ref {
+    ($from:ty => $to:ty) => {
+        impl AsRef<$to> for Intern<$from> {
+            #[inline(always)]
+            fn as_ref(&self) -> &$to {
+                self.pointer.as_ref()
+            }
+        }
+    };
+}
+
+impl_as_ref!(str => OsStr);
+impl_as_ref!(str => Path);
+impl_as_ref!(OsStr => Path);
+impl_as_ref!(Path => OsStr);
+
 impl<T: Eq + Hash + Send + Sync + ?Sized> Deref for Intern<T> {
     type Target = T;
     fn deref(&self) -> &T {

diff --git a/src/typearena.rs b/src/typearena.rs
@@ -1,7 +1,9 @@
 #![deny(missing_docs)]
 use std::any::Any;
 use std::any::TypeId;
+use std::ffi::OsStr;
 use std::hash::{Hash, Hasher};
+use std::path::Path;
 
 use append_only_vec::AppendOnlyVec;
 
@@ -368,6 +370,22 @@ impl<T: ?Sized> AsRef<T> for Intern<T> {
     }
 }
 
+macro_rules! impl_as_ref {
+    ($from:ty => $to:ty) => {
+        impl AsRef<$to> for Intern<$from> {
+            #[inline(always)]
+            fn as_ref(&self) -> &$to {
+                self.pointer.as_ref()
+            }
+        }
+    };
+}
+
+impl_as_ref!(str => OsStr);
+impl_as_ref!(str => Path);
+impl_as_ref!(OsStr => Path);
+impl_as_ref!(Path => OsStr);
+
 impl<T: Eq + Hash + Send + Sync + ?Sized> Deref for Intern<T> {
     type Target = T;
     fn deref(&self) -> &T {