From 4e6ef21576d9ec6a8861246464b1905819b68efe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edvard=20Th=C3=B6rnros?= <edvard.thornros@gmail.com>
Date: Mon, 8 Mar 2021 21:57:52 +0100
Subject: fix some nice tests for the nullable_types

---
 src/vm.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/vm.rs')

diff --git a/src/vm.rs b/src/vm.rs
index 2859d83..0595639 100644
--- a/src/vm.rs
+++ b/src/vm.rs
@@ -669,6 +669,10 @@ impl VM {
                 let ty = self.ty(ty);
                 let top_type = self.stack.last().unwrap().into();
                 match (ty, top_type) {
+                    (a, b) if matches!(a, Type::Union(_)) && a == &b => {
+                        let last = self.stack.len() - 1;
+                        self.stack[last] = Value::from(a);
+                    }
                     (Type::Unknown, top_type)
                         if top_type != Type::Unknown => {}
                     (a, b) if a != &b => {
-- 
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