Capture variable by slot instead of value 🎣

2 files changed, 6 insertions, 6 deletions

diff --git a/src/syntax/expr.rs b/src/syntax/expr.rs
index 7a055cc7..ebe82199 100644
--- a/src/syntax/expr.rs
+++ b/src/syntax/expr.rs
@@ -1,6 +1,6 @@
 use super::*;
 use crate::color::RgbaColor;
-use crate::eval::Value;
+use crate::eval::Slot;
 use crate::geom::{AngularUnit, LengthUnit};
 
 /// An expression.
@@ -51,11 +51,11 @@ pub enum Expr {
     If(ExprIf),
     /// A for expression: `#for x #in y { z }`.
     For(ExprFor),
-    /// A captured value.
+    /// A captured variable slot.
     ///
     /// This node is never created by parsing. It only results from an in-place
-    /// transformation of an identifier to a captured value.
-    CapturedValue(Value),
+    /// transformation of an identifier to a captured variable.
+    Captured(Slot),
 }
 
 impl Pretty for Expr {
@@ -88,7 +88,7 @@ impl Pretty for Expr {
             Self::Let(v) => v.pretty(p),
             Self::If(v) => v.pretty(p),
             Self::For(v) => v.pretty(p),
-            Self::CapturedValue(v) => v.pretty(p),
+            Self::Captured(v) => v.borrow().pretty(p),
         }
     }
 }
diff --git a/src/syntax/visit.rs b/src/syntax/visit.rs
index e9e5dad7..6f0e7ef3 100644
--- a/src/syntax/visit.rs
+++ b/src/syntax/visit.rs
@@ -94,7 +94,7 @@ pub fn walk_expr<'a, V: Visitor<'a>>(v: &mut V, expr: &'a mut Expr) {
         Expr::Let(e) => v.visit_let(e),
         Expr::If(e) => v.visit_if(e),
         Expr::For(e) => v.visit_for(e),
-        Expr::CapturedValue(_) => {}
+        Expr::Captured(_) => {}
     }
 }