None literal 🕳

2 files changed, 5 insertions, 0 deletions

diff --git a/src/syntax/expr.rs b/src/syntax/expr.rs
index 94d07b07..cf6611f9 100644
--- a/src/syntax/expr.rs
+++ b/src/syntax/expr.rs
@@ -108,6 +108,8 @@ pub type ExprContent = Tree;
 pub enum Lit {
     /// A identifier literal: `left`.
     Ident(Ident),
+    /// The none literal: `none`.
+    None,
     /// A boolean literal: `true`, `false`.
     Bool(bool),
     /// An integer literal: `120`.
diff --git a/src/syntax/token.rs b/src/syntax/token.rs
index ef17fac2..a28c35b6 100644
--- a/src/syntax/token.rs
+++ b/src/syntax/token.rs
@@ -63,6 +63,8 @@ pub enum Token<'s> {
 
     /// An identifier: `center`.
     Ident(&'s str),
+    /// A none: `none`.
+    None,
     /// A boolean: `true`, `false`.
     Bool(bool),
     /// An integer: `120`.
@@ -152,6 +154,7 @@ impl<'s> Token<'s> {
             Self::Slash => "slash",
 
             Self::Ident(_) => "identifier",
+            Self::None => "none",
             Self::Bool(_) => "bool",
             Self::Int(_) => "integer",
             Self::Float(_) => "float",