Struct Hunk

Source

pub struct Hunk {
    pub old_start: usize,
    pub old_count: usize,
    pub new_start: usize,
    pub new_count: usize,
    pub lines: Vec<HunkLine>,
}

Expand description

A hunk in a unified diff

Fields§

§old_start: usize

Starting line in original file

§old_count: usize

Number of lines in original file

§new_start: usize

Starting line in new file

§new_count: usize

Number of lines in new file

§lines: Vec<HunkLine>

Lines in the hunk

Implementations§

Source §

impl Hunk

Source

pub fn new( old_start: usize, old_count: usize, new_start: usize, new_count: usize, ) -> Self

Creates a new hunk

§Arguments

old_start - Starting line in original file
old_count - Number of lines in original file
new_start - Starting line in new file
new_count - Number of lines in new file

§Returns

A new Hunk with empty lines

§Examples

use rust_diff_analyzer::git::Hunk;

let hunk = Hunk::new(10, 5, 10, 7);
assert_eq!(hunk.old_start, 10);
assert!(hunk.lines.is_empty());

Source

pub fn added_count(&self) -> usize

Returns count of added lines

§Returns

Number of added lines in hunk

§Examples

use rust_diff_analyzer::git::{Hunk, HunkLine};

let mut hunk = Hunk::new(1, 1, 1, 2);
hunk.lines.push(HunkLine::added(1, "new line".to_string()));
assert_eq!(hunk.added_count(), 1);

Source

pub fn removed_count(&self) -> usize

Returns count of removed lines

§Returns

Number of removed lines in hunk

§Examples

use rust_diff_analyzer::git::{Hunk, HunkLine};

let mut hunk = Hunk::new(1, 2, 1, 1);
hunk.lines
    .push(HunkLine::removed(1, "old line".to_string()));
assert_eq!(hunk.removed_count(), 1);

Source

pub fn added_lines(&self) -> Vec<usize>

Returns all added line numbers in new file

§Returns

Vector of line numbers that were added

§Examples

use rust_diff_analyzer::git::{Hunk, HunkLine};

let mut hunk = Hunk::new(1, 1, 1, 2);
hunk.lines.push(HunkLine::added(5, "new".to_string()));
hunk.lines.push(HunkLine::added(6, "lines".to_string()));
assert_eq!(hunk.added_lines(), vec![5, 6]);

Source

pub fn removed_lines(&self) -> Vec<usize>

Returns all removed line numbers in old file

§Returns

Vector of line numbers that were removed

§Examples

use rust_diff_analyzer::git::{Hunk, HunkLine};

let mut hunk = Hunk::new(1, 2, 1, 1);
hunk.lines.push(HunkLine::removed(3, "old".to_string()));
assert_eq!(hunk.removed_lines(), vec![3]);

Source

pub fn removed_positions_in_new(&self) -> Vec<usize>

Returns the new-file line positions where removals occurred

Each removed line is attributed to the line number that occupies its place in the new file, so removals can be mapped onto semantic units extracted from post-change content. A removal at the very end of the hunk yields the first line after the hunk.

§Returns

Vector of new-file line numbers, one per removed line

§Examples

use rust_diff_analyzer::git::{Hunk, HunkLine};

let mut hunk = Hunk::new(1, 3, 1, 2);
hunk.lines
    .push(HunkLine::context(1, 1, "fn a() {".to_string()));
hunk.lines
    .push(HunkLine::removed(2, "    old();".to_string()));
hunk.lines.push(HunkLine::context(3, 2, "}".to_string()));
assert_eq!(hunk.removed_positions_in_new(), vec![2]);