Remove hashing hack.

src/ast/expr.rs

@@ -2,7 +2,6 @@
 
 use super::{ASTFlags, ASTNode, Ident, Namespace, Stmt, StmtBlock};
 use crate::engine::{KEYWORD_FN_PTR, OP_EXCLUSIVE_RANGE, OP_INCLUSIVE_RANGE};
-use crate::func::hashing::ALT_ZERO_HASH;
 use crate::tokenizer::Token;
 use crate::types::dynamic::Union;
 use crate::{
@@ -17,7 +16,7 @@ use std::{
     fmt::Write,
     hash::Hash,
     iter::once,
-    num::{NonZeroU64, NonZeroU8, NonZeroUsize},
+    num::{NonZeroU8, NonZeroUsize},
 };
 
 /// _(internals)_ A binary expression.
@@ -103,9 +102,9 @@ impl CustomExpr {
 pub struct FnCallHashes {
     /// Pre-calculated hash for a script-defined function ([`None`] if native functions only).
     #[cfg(not(feature = "no_function"))]
-    script: Option<NonZeroU64>,
+    script: Option<u64>,
     /// Pre-calculated hash for a native Rust function with no parameter types.
-    native: NonZeroU64,
+    native: u64,
 }
 
 impl fmt::Debug for FnCallHashes {
@@ -128,8 +127,6 @@ impl fmt::Debug for FnCallHashes {
 impl From<u64> for FnCallHashes {
     #[inline]
     fn from(hash: u64) -> Self {
-        let hash = NonZeroU64::new(if hash == 0 { ALT_ZERO_HASH } else { hash }).unwrap();
-
         Self {
             #[cfg(not(feature = "no_function"))]
             script: Some(hash),
@@ -146,7 +143,7 @@ impl FnCallHashes {
         Self {
             #[cfg(not(feature = "no_function"))]
             script: None,
-            native: NonZeroU64::new(if hash == 0 { ALT_ZERO_HASH } else { hash }).unwrap(),
+            native: hash,
         }
     }
     /// Create a [`FnCallHashes`] with both native Rust and script function hashes.
@@ -155,8 +152,8 @@ impl FnCallHashes {
     pub fn from_all(#[cfg(not(feature = "no_function"))] script: u64, native: u64) -> Self {
         Self {
             #[cfg(not(feature = "no_function"))]
-            script: NonZeroU64::new(if script == 0 { ALT_ZERO_HASH } else { script }),
-            native: NonZeroU64::new(if native == 0 { ALT_ZERO_HASH } else { native }).unwrap(),
+            script: Some(script),
+            native,
         }
     }
     /// Is this [`FnCallHashes`] native-only?
@@ -174,7 +171,7 @@ impl FnCallHashes {
     #[inline(always)]
     #[must_use]
     pub const fn native(&self) -> u64 {
-        self.native.get()
+        self.native
     }
     /// Get the script hash.
     ///
@@ -188,7 +185,7 @@ impl FnCallHashes {
     #[must_use]
     pub fn script(&self) -> u64 {
         assert!(self.script.is_some());
-        self.script.as_ref().unwrap().get()
+        self.script.unwrap()
     }
 }