Argument counting starts at 1 now

[uwu-lang.git] / api / vm.c

diff --git a/api/vm.c b/api/vm.c
index 52a003c49f2dbe56fcde337bd9bff185610aca80..eb384d73be23ce6c5a5c7a7d03d53dd39bcbaffa 100644 (file)
--- a/api/vm.c
+++ b/api/vm.c
@@ -44,10 +44,12 @@ UwUVMValue uwuvm_evaluate_expression(UwUVMExpression *expression, UwUVMArgs *arg
                        return uwustr_create(expression->value.str_value);
 
                case EX_ARGNUM:
-                       if ((size_t) expression->value.int_value >= args->num)
-                               error("type error: not enough arguments (accessed argument $%d, but only %lu arguments were passed)\n", expression->value.int_value, args->num);
+                       if (expression->value.int_value == 0)
+                               error("type error: trying to access argument $0\n");
+                       if ((size_t) expression->value.int_value > args->num)
+                               error("type error: trying to access argument $%d, but only %lu arguments were passed)\n", expression->value.int_value, args->num);
 
-                       return uwuvm_clone_value(uwuvm_get_arg(args, expression->value.int_value));
+                       return uwuvm_clone_value(uwuvm_get_arg(args, expression->value.int_value - 1));
 
                case EX_FNNAME:
                        return uwuref_create(expression->value.ref_value);