Merging upstream version 1.71.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/vendor/gix-hashtable/src/lib.rs b/vendor/gix-hashtable/src/lib.rs
index 6392a9a5c..476600578 100644
--- a/vendor/gix-hashtable/src/lib.rs
+++ b/vendor/gix-hashtable/src/lib.rs
@@ -40,6 +40,15 @@ pub mod hash {
     #[derive(Default, Clone, Copy)]
     pub struct Hasher(u64);
 
+    macro_rules! panic_other_writers {
+        ($func:ident, $type:ty) => {
+            #[cold]
+            fn $func(&mut self, _i: $type) {
+                panic!("This hasher only supports manually verified `Hash` implementations")
+            }
+        };
+    }
+
     impl std::hash::Hasher for Hasher {
         fn finish(&self) -> u64 {
             self.0
@@ -49,6 +58,21 @@ pub mod hash {
         fn write(&mut self, bytes: &[u8]) {
             self.0 = u64::from_ne_bytes(bytes[..8].try_into().unwrap());
         }
+
+        // Panic if someone tries to use this with a different function,
+        // only manually verified types should be used with this hasher
+        panic_other_writers!(write_u8, u8);
+        panic_other_writers!(write_u16, u16);
+        panic_other_writers!(write_u32, u32);
+        panic_other_writers!(write_u64, u64);
+        panic_other_writers!(write_u128, u128);
+        panic_other_writers!(write_usize, usize);
+        panic_other_writers!(write_i8, i8);
+        panic_other_writers!(write_i16, i16);
+        panic_other_writers!(write_i32, i32);
+        panic_other_writers!(write_i64, i64);
+        panic_other_writers!(write_i128, i128);
+        panic_other_writers!(write_isize, isize);
     }
 
     /// A Hasher for usage with HashMap keys that are already robust hashes (like an `ObjectId`).