Struct rustc_hir::definitions::DefPathTable

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

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>

def_path_hash_to_index: DefPathHashMap

Implementations

impl DefPathTable

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

Trait Implementations

impl Clone for DefPathTable

fn clone(&self) -> DefPathTable

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DefPathTable

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

Formats the value using the given formatter.

impl Default for DefPathTable

fn default() -> DefPathTable

Returns the “default value” for a type.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 64 bytes