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authorVincent Ambo <mail@tazj.in>2022-08-07T23·55+0300
committertazjin <tazjin@tvl.su>2022-08-12T14·09+0000
commitd431f43f5fbb0c8eaa23fd082ddb8839cdc0f642 (patch)
tree3f9d016912095141f4ab4e36f556cfbbdd47b964 /tvix/eval/src/value.rs
parentded0fb9e21d4b8794fa668941474b26d45ef6f3d (diff)
feat(tvix/eval): implement boolean inversion operator r/4415
Change-Id: Icb1d449fdee4d67b5f1eefdbc01baa1584ea0a67
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6079
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: grfn <grfn@gws.fyi>
Diffstat (limited to 'tvix/eval/src/value.rs')
-rw-r--r--tvix/eval/src/value.rs12
1 files changed, 12 insertions, 0 deletions
diff --git a/tvix/eval/src/value.rs b/tvix/eval/src/value.rs
index cbfff55b49e1..842d561d67a6 100644
--- a/tvix/eval/src/value.rs
+++ b/tvix/eval/src/value.rs
@@ -1,6 +1,8 @@
 //! This module implements the backing representation of runtime
 //! values in the Nix language.
 
+use crate::errors::{Error, EvalResult};
+
 #[derive(Clone, Copy, Debug, PartialEq)]
 pub enum Value {
     Null,
@@ -26,6 +28,16 @@ impl Value {
             Value::Float(_) => "float",
         }
     }
+
+    pub fn as_bool(self) -> EvalResult<bool> {
+        match self {
+            Value::Bool(b) => Ok(b),
+            other => Err(Error::TypeError {
+                expected: "bool",
+                actual: other.type_of(),
+            }),
+        }
+    }
 }
 
 #[derive(Clone, Copy, Debug, PartialEq)]