Struct Change 

pub struct Change<'h, S = &'h str> { /* private fields */ }

A change in a buffer, with a start, taken text, and added text

If you acquired this Change from a BufferTracker::parts call, you need not worry about adding it to the ranges that need to be updated, as that has already been done.

Implementations

impl Change<'static, String>

pub fn new(edit: impl ToString, range: Range<Point>, text: &Text) -> Self

Returns a new Change.

pub fn as_ref(&self) -> Change<'_, &str>

Returns a copyable Change

pub fn try_merge(&mut self, older: Self)

In this function, it is assumed that self happened after newer

If the merger fails, the older Change will be returned;

impl<'h> Change<'h>

pub fn to_string_change(&self) -> Change<'static, String>

Creates a Change<String> from a Change<&str>

pub fn str_insert(added_str: &'h str, start: Point) -> Self

Returns a new copyable Change from an insertion.

impl<'s, S: Borrow<str>> Change<'s, S>

pub fn reverse(self) -> Self

Returns a reversed version of this Change

pub fn line_range(&self, strs: &Strs) -> Range<Point>

Gets a Range<Point>, from the start to the end of the affected lines

For example, if you make an edit that transforms lines 1..=3 to lines 1..=5, this function will return a Range that starts at the beginning of line 1, and ends at the end of line 5.

Note

This end of this range will come after the last \n, which means that, in that example, said point would have a Point::line value equal to 6, not 5, since it represents both the end of line 5, and the beginning of line 6.

pub fn start(&self) -> Point

The Point at the start of the change

pub fn taken_end(&self) -> Point

Returns the end of the Change, before it was applied

pub fn added_end(&self) -> Point

Returns the end of the Change, after it was applied

pub fn taken_range(&self) -> Range<Point>

Returns the taken Range

pub fn added_range(&self) -> Range<Point>

Returns the added Range

pub fn added_str(&self) -> &str

The text that was taken on this Change

pub fn taken_str(&self) -> &str

The text that was added by this Change

pub fn shift(&self) -> [i32; 3]

The total shift caused by this Change

Trait Implementations

impl<'de, Context> BorrowDecode<'de, Context> for Change<'static, String>

fn borrow_decode<D: BorrowDecoder<'de, Context = Context>>( decoder: &mut D, ) -> Result<Self, DecodeError>

Attempt to decode this type with the given BorrowDecode.

impl<'h, S: Clone> Clone for Change<'h, S>

fn clone(&self) -> Change<'h, S>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'s, S: Debug> Debug for Change<'s, S>

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

Formats the value using the given formatter.

impl<Context> Decode<Context> for Change<'static, String>

fn decode<D: Decoder<Context = Context>>( decoder: &mut D, ) -> Result<Self, DecodeError>

Attempt to decode this type with the given Decode.

impl<'h, S: Default> Default for Change<'h, S>

fn default() -> Change<'h, S>

Returns the “default value” for a type.

impl Encode for Change<'static, String>

fn encode<E: Encoder>(&self, encoder: &mut E) -> Result<(), EncodeError>

Encode a given type.

impl<'h, S: Ord> Ord for Change<'h, S>

fn cmp(&self, other: &Change<'h, S>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<'h, S: PartialEq> PartialEq for Change<'h, S>

fn eq(&self, other: &Change<'h, S>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'h, S: PartialOrd> PartialOrd for Change<'h, S>

fn partial_cmp(&self, other: &Change<'h, S>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'h, S: Copy> Copy for Change<'h, S>

impl<'h, S: Eq> Eq for Change<'h, S>

impl<'h, S> StructuralPartialEq for Change<'h, S>