feat(tvix/eval): add builtins.{floor,ceil} r/5198

Change-Id: I4e6c4f96f6f5097a5c637eb3dbbd7bb8b34b7d52
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7032
Autosubmit: j4m3s <james.landrein@gmail.com>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: grfn <grfn@gws.fyi>

1 files changed, 6 insertions, 0 deletions

diff --git a/tvix/eval/src/builtins/mod.rs b/tvix/eval/src/builtins/mod.rs
index 336c320e2f..91fe27aa46 100644
--- a/tvix/eval/src/builtins/mod.rs
+++ b/tvix/eval/src/builtins/mod.rs
@@ -134,6 +134,9 @@ fn pure_builtins() -> Vec<Builtin> {
                 Ok(Value::List(NixList::construct(output.len(), output)))
             },
         ),
+        Builtin::new("ceil", &[true], |args: Vec<Value>, _: &mut VM| {
+            Ok(Value::Integer(args[0].as_float()?.ceil() as i64))
+        }),
         Builtin::new(
             "compareVersions",
             &[true, true],
@@ -269,6 +272,9 @@ fn pure_builtins() -> Vec<Builtin> {
                 .map(|list| Value::List(NixList::from(list)))
                 .map_err(Into::into)
         }),
+        Builtin::new("floor", &[true], |args: Vec<Value>, _: &mut VM| {
+            Ok(Value::Integer(args[0].as_float()?.floor() as i64))
+        }),
         Builtin::new(
             "foldl'",
             &[true, false, true],