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-rw-r--r--tvix/eval/src/builtins/mod.rs7
1 files changed, 3 insertions, 4 deletions
diff --git a/tvix/eval/src/builtins/mod.rs b/tvix/eval/src/builtins/mod.rs
index 341ee6096924..a79199339c13 100644
--- a/tvix/eval/src/builtins/mod.rs
+++ b/tvix/eval/src/builtins/mod.rs
@@ -551,10 +551,9 @@ mod pure_builtins {
 
     #[builtin("hasContext")]
     #[allow(non_snake_case)]
-    async fn builtin_hasContext(_co: GenCo, #[lazy] _e: Value) -> Result<Value, ErrorKind> {
-        Ok(Value::Catchable(CatchableErrorKind::UnimplementedFeature(
-            "hasContext".to_string(),
-        )))
+    async fn builtin_hasContext(co: GenCo, e: Value) -> Result<Value, ErrorKind> {
+        let v = e.to_str()?;
+        Ok(Value::Bool(v.has_context()))
     }
 
     #[builtin("hashString")]