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Diffstat (limited to 'tvix/eval/src/builtins/mod.rs')
| -rw-r--r-- | tvix/eval/src/builtins/mod.rs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tvix/eval/src/builtins/mod.rs b/tvix/eval/src/builtins/mod.rs index a5ca2114e1..f6af16f96f 100644 --- a/tvix/eval/src/builtins/mod.rs +++ b/tvix/eval/src/builtins/mod.rs @@ -134,6 +134,12 @@ fn pure_builtins() -> Vec<Builtin> { Builtin::new("length", &[true], |args, _| { Ok(Value::Integer(args[0].to_list()?.len() as i64)) }), + Builtin::new("hasAttr", &[true, true], |args, _| { + let k = args[0].to_str()?; + let xs = args[1].to_attrs()?; + + Ok(Value::Bool(xs.contains(k.as_str()))) + }), Builtin::new("head", &[true], |args, _| match args[0].to_list()?.get(0) { Some(x) => Ok(x.clone()), None => Err(ErrorKind::IndexOutOfBounds { index: 0 }), |