Struct DiffResult 

pub struct DiffResult<'a> {
    pub(crate) d_post: [u8; 32],
    pub(crate) lines: Vec<&'a str>,
}

The result of applying one or more diff commands to an input string.

It refers to lines from the diff and the input by reference, to avoid copying.

Fields

d_post: [u8; 32]

An expected digest of the output, after it has been assembled.

lines: Vec<&'a str>

The lines in the output.

Implementations

impl<'a> DiffResult<'a>

pub(crate) fn from_str(s: &'a str, d_post: [u8; 32]) -> Self

Construct a new DiffResult containing the provided string split into lines, and an expected post-transformation digest.

pub(crate) fn new(d_post: [u8; 32]) -> Self

Return a new empty DiffResult with an expected post-transformation digests

pub(crate) fn push_reversed(&mut self, lines: &[&'a str])

Put every member of lines at the end of this DiffResult, in reverse order.

pub(crate) fn remove_lines( &mut self, first: usize, last: usize, ) -> Result<(), Error>

Remove the 1-indexed lines from first through last inclusive.

This has to move elements around within the vector, and so it is potentially O(n) in its length.

pub(crate) fn insert_at( &mut self, pos: usize, lines: &[&'a str], ) -> Result<(), Error>

Insert the provided lines so that they appear at 1-indexed position pos.

This has to move elements around within the vector, and so it is potentially O(n) in its length.

pub fn check_digest(&self) -> Result<(), Error>

See whether the output of this diff matches the target digest.

If not, return an error.

Trait Implementations

impl<'a> Clone for DiffResult<'a>

fn clone(&self) -> DiffResult<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for DiffResult<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> Display for DiffResult<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.