From 4cf21866e8f18449ea0c41ee1ba031c05419d94c Mon Sep 17 00:00:00 2001
From: Ben Kimock <kimockb@gmail.com>
Date: Sat, 15 Feb 2025 15:18:19 -0500
Subject: Move hashes from rustc_data_structure to rustc_hashes so they can be
 shared with rust-analyzer

---
 compiler/rustc_serialize/src/serialize.rs | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'compiler/rustc_serialize/src')

diff --git a/compiler/rustc_serialize/src/serialize.rs b/compiler/rustc_serialize/src/serialize.rs
index db8555edd0f..1eefd76f92b 100644
--- a/compiler/rustc_serialize/src/serialize.rs
+++ b/compiler/rustc_serialize/src/serialize.rs
@@ -10,6 +10,7 @@ use std::path;
 use std::rc::Rc;
 use std::sync::Arc;
 
+use rustc_hashes::{Hash64, Hash128};
 use smallvec::{Array, SmallVec};
 use thin_vec::ThinVec;
 
@@ -716,3 +717,31 @@ impl<D: Decoder, T: Decodable<D>> Decodable<D> for Arc<[T]> {
         vec.into()
     }
 }
+
+impl<S: Encoder> Encodable<S> for Hash64 {
+    #[inline]
+    fn encode(&self, s: &mut S) {
+        s.emit_raw_bytes(&self.as_u64().to_le_bytes());
+    }
+}
+
+impl<S: Encoder> Encodable<S> for Hash128 {
+    #[inline]
+    fn encode(&self, s: &mut S) {
+        s.emit_raw_bytes(&self.as_u128().to_le_bytes());
+    }
+}
+
+impl<D: Decoder> Decodable<D> for Hash64 {
+    #[inline]
+    fn decode(d: &mut D) -> Self {
+        Self::new(u64::from_le_bytes(d.read_raw_bytes(8).try_into().unwrap()))
+    }
+}
+
+impl<D: Decoder> Decodable<D> for Hash128 {
+    #[inline]
+    fn decode(d: &mut D) -> Self {
+        Self::new(u128::from_le_bytes(d.read_raw_bytes(16).try_into().unwrap()))
+    }
+}
-- 
cgit 1.4.1-3-g733a5