Struct KindMatcher 

pub struct KindMatcher { /* private fields */ }

Implementations

impl KindMatcher

pub fn new<L: Language>(node_kind: &str, lang: L) -> Self

pub fn try_new<L: Language>( node_kind: &str, lang: L, ) -> Result<Self, KindMatcherError>

pub fn from_id(kind: u16) -> Self

pub fn is_invalid(&self) -> bool

Whether the kind matcher contains undefined tree-sitter kind.

pub fn error_matcher() -> Self

Construct a matcher that only matches ERROR

Trait Implementations

impl Clone for KindMatcher

fn clone(&self) -> KindMatcher

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Matcher for KindMatcher

fn match_node_with_env<'tree, D: Doc>( &self, node: Node<'tree, D>, _env: &mut Cow<'_, MetaVarEnv<'tree, D>>, ) -> Option<Node<'tree, D>>

Returns the node why the input is matched or None if not matched. The return value is usually input node itself, but it can be different node. For example Has matcher can return the child or descendant node.

fn potential_kinds(&self) -> Option<BitSet>

Returns a bitset for all possible target node kind ids. Returns None if the matcher needs to try against all node kind.

fn get_match_len<D: Doc>(&self, _node: Node<'_, D>) -> Option<usize>

get_match_len will skip trailing anonymous child node to exclude punctuation.