rust-analyzer - Unnamed repository; edit this file 'description' to name the repository.


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

use {
    crate::TextSize,
    std::{convert::TryInto, ops::Deref},
};

/// Text-like structures that have a text size.
pub trait LenTextSize: Copy {
    /// The size of this text-alike.
    fn len_text_size(self) -> TextSize;
}

impl LenTextSize for &'_ str {
    #[inline]
    fn len_text_size(self) -> TextSize {
        self.len().try_into().unwrap()
    }
}

impl<D> LenTextSize for &'_ D
where
    D: Deref<Target = str>,
{
    #[inline]
    fn len_text_size(self) -> TextSize {
        self.deref().len_text_size()
    }
}

impl LenTextSize for char {
    #[inline]
    fn len_text_size(self) -> TextSize {
        (self.len_utf8() as u32).into()
    }
}