Handle division by 0

Author: aceinetx

src/init/main.rs

@@ -48,18 +48,8 @@ pub fn run_code(code: String) {
 pub fn main() -> Result<(), &'static str> {
     run_code(
         r#"
-fn prompt {
-    print("> ");
-    let s = get_string();
-    print("You typed: ");
-    print(s);
-    println("");
-}
-
 fn main {
-    prompt();
-    main();
-    return Null;
+    return 123 / 0;
 } 
 "#
         .into(),

src/lang/vm.rs

@@ -84,6 +84,10 @@ impl<'a> VM<'a> {
             AstBinopOp::DIV => {
                 if let Value::Number(left_num) = left {
                     if let Value::Number(right_num) = right {
+                        if right_num == 0.0 {
+                            self.error = "division by 0".into();
+                            return Value::Null();
+                        }
                         return Value::Number(left_num / right_num);
                     }
                 }