Struct Pattern 

pub struct Pattern { /* private fields */ }

An immutable, lossless pattern syntax tree backed by a flat arena.

Implementations

impl Pattern

pub fn parse(src: &str) -> Result<Self, ParseError>

Parse a pattern into its lossless syntax tree.

Errors

Returns ParseError when src is malformed or uses an unsupported feature.

pub fn source(&self) -> &str

pub const fn root_id(&self) -> NodeId

pub fn root(&self) -> Cursor<'_>

pub fn node(&self, id: NodeId) -> &Node

pub fn nodes(&self) -> &[Node]

pub fn groups(&self) -> &[GroupInfo]

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn text(&self, span: Span) -> &str

impl Pattern

pub fn to_dot(&self) -> String

impl Pattern

pub fn to_json(&self, shape: JsonShape) -> Value

impl Pattern

pub fn to_sexpr(&self) -> String

Trait Implementations

impl Clone for Pattern

fn clone(&self) -> Pattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Pattern

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

Formats the value using the given formatter.