1 files changed, 9 insertions, 1 deletions

diff --git a/src/parser.h b/src/parser.h
index c275195..de712e1 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -9,11 +9,12 @@ typedef struct Parser {
 } Parser;
 
 typedef enum NodeType {
-    // NODE_FUNCALL,
     NODE_BUILTIN,
     NODE_NUMBER,
     NODE_BOOL,
     NODE_STRING,
+    NODE_SYMBOL,
+    NODE_DEF,
 } NodeType;
 
 typedef struct Node {
@@ -38,6 +39,13 @@ typedef struct Node {
             TokenType type;
             struct Node **args;
         } builtin;
+
+        // Variable definition.
+        struct {
+            struct Node *symbol;
+            struct Node *value;
+            // TODO: type information
+        } def;
     };
 } Node;