From: Nicolas Luck <nicolas@lucksus.eu>
Date: Fri, 21 Jul 2023 15:07:40 +0000 (+0200)
Subject: Explicitly dereference pointer to avoid calling neg() on reference
X-Git-Tag: v0.9.2~23^2^2~5
X-Git-Url: https://git.sagredo.dev/?a=commitdiff_plain;h=b1963864d2d66f9245e90d6efd2af4d7a0ab3e50;p=scryer-prolog.git

Explicitly dereference pointer to avoid calling neg() on reference
---

diff --git a/src/parser/parser.rs b/src/parser/parser.rs
index 20f53e5b..5d637e02 100644
--- a/src/parser/parser.rs
+++ b/src/parser/parser.rs
@@ -959,12 +959,14 @@ impl<'a, R: CharRead> Parser<'a, R> {
 
     fn shift_token(&mut self, token: Token, op_dir: &CompositeOpDir) -> Result<(), ParserError> {
         fn negate_int_rc(mut t: TypedArenaPtr<Integer>) -> TypedArenaPtr<Integer> {
-            let mut data = t.neg();
+            let i: Integer = (*t).clone();
+            let mut data = i.neg();
             TypedArenaPtr::new(&mut data)
         }
 
-        fn negate_rat_rc(mut t: TypedArenaPtr<Rational>) -> TypedArenaPtr<Rational> {
-            let mut data = t.neg();
+        fn negate_rat_rc(t: TypedArenaPtr<Rational>) -> TypedArenaPtr<Rational> {
+            let r: Rational = (*t).clone();
+            let mut data = r.neg();
             TypedArenaPtr::new(&mut data)
         }