1 files changed, 18 insertions, 0 deletions
diff --git a/ast.h b/ast.h
index 6b7c3d5..5ae0d12 100644
--- a/ast.h
+++ b/ast.h
@@ -16,6 +16,18 @@ struct int_lit_node {
     long long val;
 };
 
+struct float_lit_node {
+    double val;
+};
+
+struct char_lit_node {
+    char val;
+};
+
+struct str_lit_node {
+    char* val;
+};
+
 struct var_ref_node {
     char* ident;
 };
@@ -47,11 +59,17 @@ struct assign_node {
 struct expr_node {
     enum {
         EXPR_INT_LIT,
+        EXPR_FLOAT_LIT,
+        EXPR_CHAR_LIT,
+        EXPR_STR_LIT,
         EXPR_VAR_REF,
         EXPR_ASSIGN,
     } type;
     union {
         struct int_lit_node _int_lit;
+        struct float_lit_node _float_lit;
+        struct char_lit_node _char_lit;
+        struct str_lit_node _str_lit;
         struct var_ref_node _var_ref;
         struct assign_node _assign;
     } as;