Add hashtable for Environment tracking

1 files changed, 7 insertions, 0 deletions

diff --git a/src/parser.h b/src/parser.h
index 14d9df5..d1eddc7 100755
--- a/src/parser.h
+++ b/src/parser.h
@@ -2,6 +2,7 @@
 #define BDL_PARSER_H
 
 #include "lexer.h"
+#include "hashtable.h"
 
 typedef enum ObjectType {
     OBJ_TYPE_NIL,
@@ -58,6 +59,11 @@ typedef struct Object {
     size_t col;
 } Object;
 
+typedef struct Environment {
+    HashTable *table;
+    struct Environment *parent;
+};
+
 typedef struct Parser {
     Token *tokens;
     size_t current;
@@ -86,6 +92,7 @@ Root * parse(Token *tokens, Errors *errors);
 
 // Object operations.
 void object_display(Object *obj);
+bool object_equal(Object *a, Object *b);
 
 // Manage resources.
 Object * object_alloc(Token tok, ObjectType type);