Struct rustc_hir::definitions::DefPathTable

pub struct DefPathTable {
    index_to_key: IndexVec<DefIndex, DefKey>,
    def_path_hashes: IndexVec<DefIndex, DefPathHash>,
}

The DefPathTable maps DefIndexes to DefKeys and vice versa. Internally the DefPathTable holds a tree of DefKeys, where each DefKey stores the DefIndex of its parent. There is one DefPathTable for each crate.

Fields

index_to_key: IndexVec<DefIndex, DefKey>

def_path_hashes: IndexVec<DefIndex, DefPathHash>

Implementations

impl DefPathTable

pub(in definitions) fn allocate(
    &mut self,
    key: DefKey,
    def_path_hash: DefPathHash
) -> DefIndex

pub fn def_key(&self, index: DefIndex) -> DefKey

pub fn def_path_hash(&self, index: DefIndex) -> DefPathHash

pub fn num_def_ids(&self) -> usize

pub fn enumerated_keys_and_path_hashes(
    &self
) -> impl Iterator<Item = (DefIndex, &DefKey, &DefPathHash)> + '_

pub fn all_def_path_hashes_and_def_ids(
    &self,
    krate: CrateNum
) -> impl Iterator<Item = (DefPathHash, DefId)> + '_

Trait Implementations

impl Clone for DefPathTable

pub fn clone(&self) -> DefPathTable

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for DefPathTable

pub fn default() -> DefPathTable

Returns the "default value" for a type.