feat(tvix/eval): non-implement `unsafeDiscardOutputDependency` r/7801

Nixpkgs make use of it and this is a 2.3 builtin that was missed.

Change-Id: If36d748eed4a5f777344556c0802392c76c8d53c
Signed-off-by: Ryan Lahfa <tvl@lahfa.xyz>
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11260
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>

1 files changed, 13 insertions, 0 deletions

diff --git a/tvix/eval/src/builtins/mod.rs b/tvix/eval/src/builtins/mod.rs
index bbf2eb80c410..e1e296ba633e 100644
--- a/tvix/eval/src/builtins/mod.rs
+++ b/tvix/eval/src/builtins/mod.rs
@@ -1570,6 +1570,19 @@ mod placeholder_builtins {
         Ok(Value::from(v))
     }
 
+    #[builtin("unsafeDiscardOutputDependency")]
+    async fn builtin_unsafe_discard_output_dependency(
+        co: GenCo,
+        s: Value,
+    ) -> Result<Value, ErrorKind> {
+        generators::emit_warning_kind(
+            &co,
+            WarningKind::NotImplemented("builtins.unsafeDiscardOutputDependency"),
+        )
+        .await;
+        Ok(s)
+    }
+
     #[builtin("addErrorContext")]
     async fn builtin_add_error_context(
         co: GenCo,