Move unhandled macro from database utils to core utils.

Signed-off-by: Jason Volk <jason@zemos.net>

src/database/de.rs

@@ -3,11 +3,10 @@ use serde::{
 	de::{DeserializeSeed, Visitor},
 };
 use tuwunel_core::{
-	Error, Result, arrayvec::ArrayVec, checked, debug::DebugInspect, err, utils::string,
+	Error, Result, arrayvec::ArrayVec, checked, debug::DebugInspect, err, unhandled,
+	utils::string,
 };
 
-use crate::util::unhandled;
-
 /// Deserialize into T from buffer.
 #[cfg_attr(
 	unabridged,

src/database/ser.rs

@@ -1,9 +1,7 @@
 use std::{io::Write, mem::replace};
 
 use serde::{Deserialize, Serialize, ser};
-use tuwunel_core::{Error, Result, debug::type_name, err, result::DebugInspect};
-
-use crate::util::unhandled;
+use tuwunel_core::{Error, Result, debug::type_name, err, result::DebugInspect, unhandled};
 
 #[inline]
 pub fn serialize_to_vec<T: Serialize>(val: T) -> Result<Vec<u8>> {

src/database/util.rs

@@ -1,29 +1,6 @@
 use rocksdb::{Direction, ErrorKind, IteratorMode};
 use tuwunel_core::Result;
 
-//#[cfg(debug_assertions)]
-macro_rules! unhandled {
-	($msg:literal) => {
-		unimplemented!($msg)
-	};
-}
-
-// activate when stable; we're not ready for this yet
-#[cfg(disable)] // #[cfg(not(debug_assertions))]
-macro_rules! unhandled {
-	($msg:literal) => {
-		// SAFETY: Eliminates branches for serializing and deserializing types never
-		// encountered in the codebase. This can promote optimization and reduce
-		// codegen. The developer must verify for every invoking callsite that the
-		// unhandled type is in no way involved and could not possibly be encountered.
-		unsafe {
-			std::hint::unreachable_unchecked();
-		}
-	};
-}
-
-pub(crate) use unhandled;
-
 #[inline]
 pub(crate) fn _into_direction(mode: &IteratorMode<'_>) -> Direction {
 	use Direction::{Forward, Reverse};