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-rw-r--r--tvix/eval/src/value/function.rs16
1 files changed, 7 insertions, 9 deletions
diff --git a/tvix/eval/src/value/function.rs b/tvix/eval/src/value/function.rs
index bb33e2962ad5..f282928df9f9 100644
--- a/tvix/eval/src/value/function.rs
+++ b/tvix/eval/src/value/function.rs
@@ -2,6 +2,7 @@
 use std::{collections::HashMap, hash::Hash, rc::Rc};
 
 use codemap::Span;
+use smol_str::SmolStr;
 
 use crate::{chunk::Chunk, upvalues::Upvalues};
 
@@ -38,10 +39,15 @@ impl Formals {
 /// OpThunkSuspended referencing it.  At runtime `Lambda` is usually wrapped
 /// in `Rc` to avoid copying the `Chunk` it holds (which can be
 /// quite large).
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Default, PartialEq)]
 pub struct Lambda {
     pub(crate) chunk: Chunk,
 
+    /// Name of the function (equivalent to the name of the
+    /// identifier (e.g. a value in a let-expression or an attribute
+    /// set entry) it is located in).
+    pub(crate) name: Option<SmolStr>,
+
     /// Number of upvalues which the code in this Lambda closes
     /// over, and which need to be initialised at
     /// runtime.  Information about the variables is emitted using
@@ -51,14 +57,6 @@ pub struct Lambda {
 }
 
 impl Lambda {
-    pub fn new_anonymous() -> Self {
-        Lambda {
-            chunk: Default::default(),
-            upvalue_count: 0,
-            formals: None,
-        }
-    }
-
     pub fn chunk(&mut self) -> &mut Chunk {
         &mut self.chunk
     }