diff options
Diffstat (limited to 'tvix/eval')
| -rw-r--r-- | tvix/eval/src/builtins/mod.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tvix/eval/src/builtins/mod.rs b/tvix/eval/src/builtins/mod.rs index 1fc833641766..c603264c1e27 100644 --- a/tvix/eval/src/builtins/mod.rs +++ b/tvix/eval/src/builtins/mod.rs @@ -431,6 +431,18 @@ fn pure_builtins() -> Vec<Builtin> { Builtin::new("throw", &[true], |args: Vec<Value>, _: &mut VM| { Err(ErrorKind::Throw(args[0].to_str()?.to_string())) }), + Builtin::new( + "trace", + &[true, true], + |mut args: Vec<Value>, _: &mut VM| { + let value = args.pop().unwrap(); + let trace_value = args.pop().unwrap(); + // TODO(grfn): `trace` should be pluggable and capturable, probably via a method on + // the VM + println!("trace: {} :: {}", trace_value, trace_value.type_of()); + Ok(value) + }, + ), Builtin::new("tryEval", &[false], |args: Vec<Value>, vm: &mut VM| { let mut res = BTreeMap::new(); match args[0].force(vm) { |