reading_liner/
location.rs

1/// Zero-based offset of bytes
2#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
3pub struct Offset(usize);
4
5impl Offset {
6    pub fn new(raw: usize) -> Self {
7        Self(raw)
8    }
9
10    pub fn raw(&self) -> usize {
11        self.0
12    }
13}
14
15impl From<usize> for Offset {
16    fn from(value: usize) -> Self {
17        Offset::new(value)
18    }
19}
20
21pub mod line_column {
22    use std::num::NonZeroUsize;
23
24    /// Zero-based (line, column) location
25    #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
26    pub struct ZeroBased {
27        pub line: usize,
28        pub column: usize,
29    }
30
31    impl ZeroBased {
32        pub fn new(line: usize, column: usize) -> Self {
33            Self { line, column }
34        }
35
36        pub fn raw(&self) -> (usize, usize) {
37            (self.line, self.column)
38        }
39
40        /// Get one-based line and column numbers
41        pub fn one_based(&self) -> OneBased {
42            unsafe {
43                OneBased {
44                    line: NonZeroUsize::new_unchecked(self.line + 1),
45                    column: NonZeroUsize::new_unchecked(self.column + 1),
46                }
47            }
48        }
49    }
50
51    impl From<(usize, usize)> for ZeroBased {
52        fn from((line, column): (usize, usize)) -> Self {
53            ZeroBased { line, column }
54        }
55    }
56
57    /// One-based (line, column) location
58    #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
59    pub struct OneBased {
60        pub line: NonZeroUsize,
61        pub column: NonZeroUsize,
62    }
63
64    impl OneBased {
65        pub fn new(line: usize, column: usize) -> Option<Self> {
66            let line = NonZeroUsize::new(line)?;
67            let column = NonZeroUsize::new(column)?;
68            Some(Self { line, column })
69        }
70
71        pub fn raw(&self) -> (usize, usize) {
72            (self.line.get(), self.column.get())
73        }
74
75        /// Get zero-based line and column numbers
76        pub fn zero_based(&self) -> ZeroBased {
77            ZeroBased {
78                line: self.line.get() - 1,
79                column: self.column.get() - 1,
80            }
81        }
82    }
83
84    impl From<(NonZeroUsize, NonZeroUsize)> for OneBased {
85        fn from((line, column): (NonZeroUsize, NonZeroUsize)) -> Self {
86            OneBased { line, column }
87        }
88    }
89}
reading_liner/location.rs

reading_liner/
location.rs
