Add a grid layouter

1 files changed, 3 insertions, 0 deletions

diff --git a/src/syntax/expr.rs b/src/syntax/expr.rs
index 4dac9c59..17e4a196 100644
--- a/src/syntax/expr.rs
+++ b/src/syntax/expr.rs
@@ -9,6 +9,8 @@ use crate::geom::{AngularUnit, LengthUnit};
 pub enum Expr {
     /// The none literal: `none`.
     None(Span),
+    /// The `auto` constant.
+    Auto(Span),
     /// A boolean literal: `true`, `false`.
     Bool(Span, bool),
     /// An integer literal: `120`.
@@ -69,6 +71,7 @@ impl Expr {
     pub fn span(&self) -> Span {
         match *self {
             Self::None(span) => span,
+            Self::Auto(span) => span,
             Self::Bool(span, _) => span,
             Self::Int(span, _) => span,
             Self::Float(span, _) => span,