Method runtime_error

aiscript-vm/src/vm/state.rs:285–309

(&mut self, message: Cow<'static, str>)

impl<'gc> State<'gc> {
    fn runtime_error(&mut self, message: Cow<'static, str>) -> VmError {
        let mut error_message = String::from(message);
        for i in (0..self.frame_count).rev() {
            let frame = &self.frames[i];
            // Break loop if reach the un-initialized callframe.
            // Call Vm::eval_function directly will reach this case,
            // since it never init the root script.
            if frame.ip == 0 {
                break;
            }
            let function = &frame.closure.function;
            error_message.push_str(&format!(
                "\n[line {}] in ",
                function.chunk.line(frame.ip - 1)
            ));
            let name = if let Some(name) = function.name {
                name.to_str().unwrap()
            } else {
                "script"
            };
            error_message.push_str(name);
            error_message.push('\n');
        }
        VmError::RuntimeError(error_message)
    }

    fn current_frame(&mut self) -> &mut CallFrame<'gc> {
        &mut self.frames[self.frame_count - 1]