parse_display/
helpers.rs

1use core::fmt;
2
3#[cfg(feature = "std")]
4pub use super::helpers_std::*;
5
6use crate::{DisplayFormat, FromStrFormat};
7
8pub struct Formatted<'a, T: ?Sized, F: DisplayFormat<T>> {
9    pub value: &'a T,
10    pub format: F,
11}
12impl<T: ?Sized, F: DisplayFormat<T>> fmt::Display for Formatted<'_, T, F> {
13    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
14        self.format.write(f, self.value)
15    }
16}
17
18pub fn parse_with<T, F>(fmt: F, s: &str) -> Result<T, F::Err>
19where
20    F: FromStrFormat<T>,
21{
22    fmt.parse(s)
23}
24
25pub struct FmtPointer<'a, T: ?Sized + fmt::Pointer>(pub &'a T);
26
27impl<'a, T: ?Sized + fmt::Pointer> fmt::Pointer for FmtPointer<'a, T> {
28    #[inline]
29    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
30        fmt::Pointer::fmt(self.0, f)
31    }
32}