From 47c79e7d535084bcfcbdd256d1befefde190ddde Mon Sep 17 00:00:00 2001
From: _cry64 <them@dobutterfliescry.net>
Date: Fri, 3 Apr 2026 21:19:53 +1000
Subject: [PATCH] fix Store::realise returning empty

---
 nixide/src/store/mod.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/nixide/src/store/mod.rs b/nixide/src/store/mod.rs
index f40a395..a2dc000 100644
--- a/nixide/src/store/mod.rs
+++ b/nixide/src/store/mod.rs
@@ -108,7 +108,7 @@ impl Store {
     ///
     /// Returns an error if the path cannot be realized.
     ///
-    pub fn realise<F>(
+    pub fn realise(
         &self,
         path: &StorePath,
         user_callback: fn(&str, &StorePath),
@@ -130,7 +130,7 @@ impl Store {
                 let callback = unsafe { (*userdata).inner };
                 callback(output_name.as_ref(), &store_path);
 
-                (output_name, store_path);
+                (unsafe {(*userdata).retval }).append((output_name, store_path));
             },
             |callback,
              state: *mut __UserData,
@@ -139,6 +139,8 @@ impl Store {
                 // WARNING: Using `write` instead of assignment via `=`
                 // WARNING: to not call `drop` on the old, uninitialized value.
                 (&raw mut (*state).inner).write(user_callback);
+                // register return value
+                (&raw mut (*state).retval).write(Vec::new());
 
                 sys::nix_store_realise(
                     ctx.as_ptr(),