repubmark/src/pos.rs

53 lines
930 B
Rust

#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub struct LinePos {
index: usize,
lineno: usize,
}
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub struct CharPos {
line: LinePos,
col: usize,
}
impl LinePos {
pub fn new(index: usize, lineno: usize) -> Self {
assert!(lineno >= 1);
Self { index, lineno }
}
pub fn index(&self) -> usize {
self.index
}
pub fn lineno(&self) -> usize {
self.lineno
}
}
impl CharPos {
pub fn new(index: usize, lineno: usize, col: usize) -> Self {
assert!(col >= 1);
Self {
line: LinePos::new(index, lineno),
col,
}
}
pub fn line(&self) -> LinePos {
self.line
}
pub fn index(&self) -> usize {
self.line.index
}
pub fn lineno(&self) -> usize {
self.line.lineno
}
pub fn col(&self) -> usize {
self.col
}
}