Enum PositionEncoding 

pub enum PositionEncoding {
    Utf8,
    Utf16,
    Utf32,
}

The character-unit convention a client uses for Position.character.

LSP 3.17+ clients advertise the encodings they support via the general.positionEncodings client capability and the server picks one in its InitializeResult; older clients always mean UTF-16. All conversions in this crate funnel through this enum.

Variants

Utf8

Position.character counts UTF-8 bytes (code units of UTF-8).

Utf16

Position.character counts UTF-16 code units — the LSP default and what most clients (VS Code included) use.

Utf32

Position.character counts Unicode code points (UTF-32 code units).

Implementations

impl PositionEncoding

pub fn capability(self) -> PositionEncodingKind

The capability to advertise in InitializeResult.capabilities.position_encoding.

pub fn negotiate(offered: &[PositionEncodingKind]) -> Option<Self>

Selects an encoding from a client-advertised capability list, preferring UTF-8 (cheapest to convert) over UTF-16 over UTF-32.

Returns None — and callers should fall back to PositionEncoding::Utf16, the LSP default — if the client advertises none of the supported encodings.

Trait Implementations

impl Clone for PositionEncoding

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PositionEncoding

impl Debug for PositionEncoding

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

Formats the value using the given formatter.

impl Eq for PositionEncoding

impl Hash for PositionEncoding

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PositionEncoding

fn eq(&self, other: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PositionEncoding