Struct TextChange

Source
pub struct TextChange {
    pub start_idx: u32,
    pub end_idx: u32,
    pub content: String,
}
Expand description

An editor-friendly representation of a text change in a given buffer.

It’s expressed with a range of characters and a string of content that should replace them, allowing representation of any combination of deletions, insertions or replacements.

Bulky and large operations will result in a single TextChange effectively sending the whole new buffer, but smaller changes are efficient and easy to create or apply.

§Examples

To insert ‘a’ after 4th character we should send:

codemp::api::TextChange { start_idx: 4, end_idx: 4, content: "a".into() };

To delete the fourth character we should send:

codemp::api::TextChange { start_idx: 3, end_idx: 4, content: "".into() };
let change = codemp::api::TextChange {
  start_idx: 6,
  end_idx: 11,
  content: "mom".to_string()
};
let before = "hello world!";
let after = change.apply(before);
assert_eq!(after, "hello mom!");

Fields§

§start_idx: u32

Range start of text change, as char indexes in buffer previous state.

§end_idx: u32

Range end of text change, as char indexes in buffer previous state.

§content: String

New content of text inside span.

Implementations§

Source§

impl TextChange

Source

pub fn span(&self) -> Range<usize>

Returns the std::ops::Range representing this change’s span.

Source§

impl TextChange

Source

pub fn is_delete(&self) -> bool

Returns true if this TextChange deletes existing text.

Note that this is is not mutually exclusive with TextChange::is_insert.

Source

pub fn is_insert(&self) -> bool

Returns true if this TextChange adds new text.

Note that this is is not mutually exclusive with TextChange::is_delete.

Source

pub fn is_empty(&self) -> bool

Returns true if this TextChange is effectively as no-op.

Source

pub fn apply(&self, txt: &str) -> String

Applies this text change to given text, returning a new string.

Trait Implementations§

Source§

impl AsyncSender<TextChange> for BufferController

Source§

fn send(&self, op: TextChange) -> ControllerResult<()>

Enqueue a new value to be sent to all other users without blocking
Source§

impl Clone for TextChange

Source§

fn clone(&self) -> TextChange

Returns a copy of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for TextChange

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Default for TextChange

Source§

fn default() -> TextChange

Returns the “default value” for a type. Read more
Source§

impl<'de> Deserialize<'de> for TextChange

Source§

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
Source§

impl Serialize for TextChange

Source§

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
Source§

impl Controller<TextChange, BufferUpdate> for BufferController

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T> FromRef<T> for T
where T: Clone,

Source§

fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
Source§

impl<T> Instrument for T

Source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
Source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> IntoRequest<T> for T

Source§

fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

Source§

fn vzip(self) -> V

Source§

impl<T> WithSubscriber for T

Source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
Source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
Source§

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,