almost fibonacci but it needs the type checker

1 files changed, 8 insertions, 0 deletions

diff --git a/ast.h b/ast.h
index 4b8f0ee..a2d576b 100644
--- a/ast.h
+++ b/ast.h
@@ -136,6 +136,12 @@ struct return_node {
     struct expr_node* ret_val; /* null to return void */
 };
 
+struct if_node {
+    struct expr_node* cond;
+    struct stmt_node* true_branch;
+    struct stmt_node* false_branch;
+};
+
 struct stmt_node {
     enum {
         STMT_EMPTY,
@@ -143,12 +149,14 @@ struct stmt_node {
         STMT_VAR_DECL,
         STMT_RETURN,
         STMT_GROUP,
+        STMT_IF,
     } type;
     union {
         struct expr_node expr;
         struct var_decl_node var_decl;
         struct return_node return_;
         struct group_node group;
+        struct if_node if_;
     } inner;
 
     struct stmt_node* next;