Struct ast_grep_core::meta_var::MetaVarEnv

pub struct MetaVarEnv<'tree, D: Doc> { /* private fields */ }

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

Implementations

impl<'tree, D: Doc> MetaVarEnv<'tree, D>

pub fn new() -> Self

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

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

pub fn insert_transformation( &mut self, name: MetaVariableID, src: Vec<<<D as Doc>::Source as Content>::Underlying> )

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

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

pub fn get_transformed( &self, var: &str ) -> Option<&Vec<<<D as Doc>::Source as Content>::Underlying>>

pub fn get_var_bytes<'s>( &'s self, var: &MetaVariable ) -> Option<&'s [<D::Source as Content>::Underlying]>

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

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

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

pub fn match_constraints( &self, var_matchers: &MetaVarMatchers<impl Doc<Lang = D::Lang>> ) -> bool

Trait Implementations

impl<'tree, D: Clone + Doc> Clone for MetaVarEnv<'tree, D>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tree, D: Doc> Default for MetaVarEnv<'tree, D>

fn default() -> Self

Returns the “default value” for a type.

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

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

Converts to this type from the input type.