Struct ast_grep_core::meta_var::MetaVarEnv

pub struct MetaVarEnv<'tree, L: Language> { /* private fields */ }

a dictionary that stores metavariable instantiation const a = 123 matched with const a = $A will produce env: $A => 123

Implementations

impl<'tree, L: Language> MetaVarEnv<'tree, L>

pub fn new() -> Self

pub fn from_matchers(var_matchers: MetaVarMatchers<L>) -> Self

pub fn insert(
    &mut self,
    id: MetaVariableID,
    ret: Node<'tree, L>
) -> Option<&mut Self>

pub fn insert_multi(
    &mut self,
    id: MetaVariableID,
    ret: Vec<Node<'tree, L>>
) -> Option<&mut Self>

pub fn get(&self, var: &MetaVariable) -> Option<MatchResult<'_, 'tree, L>>

pub fn get_match(&self, var: &str) -> Option<&Node<'tree, L>>

pub fn get_multiple_matches(&self, var: &str) -> Vec<Node<'tree, L>>

pub fn add_label(&mut self, label: &str, node: Node<'tree, L>)

pub fn get_labels(&self, label: &str) -> Option<&Vec<Node<'tree, L>>>

pub fn match_constraints(&self) -> bool

pub fn get_matched_variables(&self) -> impl Iterator<Item = MetaVariable> + '_

Trait Implementations

impl<'tree, L: Clone + Language> Clone for MetaVarEnv<'tree, L>

fn clone(&self) -> MetaVarEnv<'tree, L>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tree, L: Language> Default for MetaVarEnv<'tree, L>

fn default() -> Self

Returns the “default value” for a type.

impl<'tree, L: Language> From<MetaVarEnv<'tree, L>> for HashMap<String, String>

fn from(env: MetaVarEnv<'tree, L>) -> Self

Converts to this type from the input type.