arity bug fix

2017-02-22 15:53:12 -07:00
parent 1b5f8a1db2
commit 4cdfc211e2
1 changed files with 3 additions and 3 deletions
--- a/src/l2/machine.rs
+++ b/src/l2/machine.rs
@@ -78,7 +78,7 @@ impl Machine {
    pub fn add_rule(&mut self, rule: &Rule, mut code: Code) {
        let p = self.code.len();
        let name  = rule.head.0.name().clone();
-        let arity = rule.head.1.arity();
+        let arity = rule.head.0.arity();

        self.code.append(&mut code);
        self.code_dir.insert((name, arity), p);