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use std::fmt::Debug;
use std::fmt::Formatter;
use std::fmt::Result;
use std::ops::Deref;
use crate::cell::Ref;
use crate::cell::RefCell;
use crate::cell::RefMut;
use crate::cell::RefVal;
use crate::RefValMut;
impl<T: ?Sized + Debug> Debug for RefCell<T> {
fn fmt(&self, f: &mut Formatter) -> Result {
match self.try_borrow() {
Ok(borrow) => {
f.debug_struct("RefCell")
.field("value", &borrow)
.finish()
}
Err(_) => {
struct BorrowedPlaceholder;
impl Debug for BorrowedPlaceholder {
fn fmt(&self, f: &mut Formatter) -> Result {
f.write_str("<borrowed>")
}
}
f.debug_struct("RefCell")
.field("value", &BorrowedPlaceholder)
.finish()
}
}
}
}
impl<T: ?Sized + Debug> Debug for Ref<'_, T> {
fn fmt(&self, f: &mut Formatter) -> Result {
Debug::fmt(&**self, f)
}
}
impl<T: ?Sized + Debug> Debug for RefMut<'_, T> {
fn fmt(&self, f: &mut Formatter) -> Result {
Debug::fmt(&*(self.deref()), f)
}
}
impl<T: Sized + Debug> Debug for RefVal<'_, T> {
fn fmt(&self, f: &mut Formatter) -> Result {
Debug::fmt(&*(self.deref()), f)
}
}
impl<T: Sized + Debug> Debug for RefValMut<'_, T> {
fn fmt(&self, f: &mut Formatter) -> Result {
Debug::fmt(&*(self.deref()), f)
}
}