Updated the interface

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/syntax/tree.mli b/lib/syntax/tree.mli
index 84e5d1b..0032f03 100644
--- a/lib/syntax/tree.mli
+++ b/lib/syntax/tree.mli
@@ -7,6 +7,9 @@
 
 (** This module is the result of the evaluation. *)
 module Ast : sig
+  type 'a literal = 'a T.literal = Text of string | Expression of 'a list
+  [@@deriving eq, show]
+
   type 'a variable = { pos : 'a; name : string; index : 'a expression option }
   [@@deriving eq, show]
   (** A variable, used both in an expression (reference) or in a statement
@@ -14,7 +17,7 @@ module Ast : sig
 
   and 'a expression =
     | Integer of 'a * string
-    | Literal of 'a * string
+    | Literal of 'a * 'a expression literal list
     | Ident of 'a variable
     | BinaryOp of 'a * T.boperator * 'a expression * 'a expression
     | Op of 'a * T.uoperator * 'a expression