use std::cell::RefCell;
struct Bool {
value: bool
}
pub struct ErrorMessage {
occurred: RefCell<Bool>,
content: RefCell<String>
}
impl Bool {
fn new(value: bool) -> Self {
Self { value }
}
fn set(&mut self, value: bool) {
self.value = value;
}
fn get(&self) -> bool {
self.value
}
}
impl ErrorMessage {
pub fn new() -> Self {
Self {
occurred: RefCell::new(Bool::new(false)),
content: RefCell::new(String::new())
}
}
pub fn with_initial(value: &str) -> Self {
Self {
occurred: RefCell::new(Bool::new(false)),
content: RefCell::new(String::from(value))
}
}
pub fn mark_occurred(&self) {
self.occurred.borrow_mut().set(true);
}
pub fn is_occurred(&self) -> bool {
self.occurred.borrow().get()
}
pub fn clear_mark(&self) {
self.occurred.borrow_mut().set(false);
}
pub fn get(&self) -> String {
self.content.borrow().clone()
}
pub fn set(&self, value: &str) {
let mut str = self.content.borrow_mut();
str.clear();
value.chars().for_each(|c| {
str.push(c);
})
}
}