Fix divide support

examples/rhai_runner.rs

@@ -25,8 +25,8 @@ fn main() {
 
         if let Ok(mut f) = File::open(fname.clone()) {
             let mut contents = String::new();
+            
             if let Ok(_) = f.read_to_string(&mut contents) {
-
                 match engine.eval(contents) {
                     Ok(_) => (),
                     Err(e) => {println!("Error: {:?}", e)}

src/engine.rs

@@ -695,7 +695,7 @@ fn test_number_literal() {
 }
 
 #[test]
-fn test_addition() {
+fn test_ops() {
     let mut engine = Engine::new();
 
     if let Ok(result) = engine.eval("60 + 5".to_string()).unwrap().downcast::<i32>() {
@@ -704,6 +704,13 @@ fn test_addition() {
     else {
         assert!(false);
     }
+
+    if let Ok(result) = engine.eval("(1 + 2) * (6 - 4) / 2".to_string()).unwrap().downcast::<i32>() {
+        assert_eq!(*result, 3);
+    }
+    else {
+        assert!(false);
+    }    
 }
 
 #[test]

src/parser.rs

@@ -341,6 +341,7 @@ fn get_precedence(token: &Token) -> i32 {
         Token::NotEqualTo => 15,
         Token::Plus => 20,
         Token::Minus => 20,
+        Token::Divide => 40,
         Token::Multiply => 40,
         _ => -1
     }