From 7eed843944a247a99e48bdb6f9dc3aac17d983c5 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 18 Jul 2026 19:32:20 +0100
Subject: Support options in rust-transient-0

---
 examples/10-transient-0/output/rust/src/lib.rs | 30 +++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

(limited to 'examples/10-transient-0/output/rust/src/lib.rs')

diff --git a/examples/10-transient-0/output/rust/src/lib.rs b/examples/10-transient-0/output/rust/src/lib.rs
index a06f73e..3de2597 100644
--- a/examples/10-transient-0/output/rust/src/lib.rs
+++ b/examples/10-transient-0/output/rust/src/lib.rs
@@ -4,7 +4,7 @@ pub mod transient_0;
 #[cfg(test)]
 mod test {
     use std::io::Cursor;
-    use super::data::{InnerStruct, OuterStruct, StructWithBool, StructWithInt32, StructWithInt64, StructWithList, StructWithString};
+    use super::data::{InnerStruct, OuterStruct, StructWithBool, StructWithInt32, StructWithInt64, StructWithList, StructWithOption, StructWithString};
 
     #[test]
     fn struct_with_bool() {
@@ -79,6 +79,34 @@ mod test {
         );
     }
 
+    #[test]
+    fn struct_with_option_none() {
+        let value = StructWithOption {
+            a: None,
+            b: None,
+        };
+
+        assert_round_trip_encoding(
+            value,
+            super::data::transient_0::encode_struct_with_option,
+            super::data::transient_0::decode_struct_with_option,
+        );
+    }
+
+    #[test]
+    fn struct_with_option_some() {
+        let value = StructWithOption {
+            a: Some(10),
+            b: Some(InnerStruct { a: 42, b: 47 }),
+        };
+
+        assert_round_trip_encoding(
+            value,
+            super::data::transient_0::encode_struct_with_option,
+            super::data::transient_0::decode_struct_with_option,
+        );
+    }
+
     fn assert_round_trip_encoding<T: std::cmp::PartialEq + std::fmt::Debug>(
         value: T,
         encode: impl Fn(&T, &mut Cursor<Vec<u8>>) -> std::io::Result<()>,
-- 
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