Struct rustc_hir::definitions::Definitions

pub struct Definitions {
    table: DefPathTable,
    next_disambiguator: UnordMap<(LocalDefId, DefPathData), u32>,
}

The definition table containing node definitions. It holds the DefPathTable for LocalDefIds/DefPaths. It also stores mappings to convert LocalDefIds to/from HirIds.

Fields

table: DefPathTable

next_disambiguator: UnordMap<(LocalDefId, DefPathData), u32>

Implementations

impl Definitions

pub fn def_path_table(&self) -> &DefPathTable

pub fn def_index_count(&self) -> usize

Gets the number of definitions.

pub fn def_key(&self, id: LocalDefId) -> DefKey

pub fn def_path_hash(&self, id: LocalDefId) -> DefPathHash

pub fn def_path(&self, id: LocalDefId) -> DefPath

Returns the path from the crate root to index. The root nodes are not included in the path (i.e., this will be an empty vector for the crate root). For an inlined item, this will be the path of the item in the external crate (but the path will begin with the path to the external crate).

pub fn new(stable_crate_id: StableCrateId) -> Definitions

Adds a root definition (no parent) and a few other reserved definitions.

pub fn create_def( &mut self, parent: LocalDefId, data: DefPathData, ) -> LocalDefId

Adds a definition with a parent definition.

pub fn local_def_path_hash_to_def_id( &self, hash: DefPathHash, ) -> Option<LocalDefId>

Returns None if the DefPathHash does not correspond to a LocalDefId in the current compilation session. This can legitimately happen if the DefPathHash is from a DefId in an upstream crate or, during incr. comp., if the DefPathHash is from a previous compilation session and the def-path does not exist anymore.

pub fn def_path_hash_to_def_index_map(&self) -> &DefPathHashMap

pub fn num_definitions(&self) -> usize

Trait Implementations

impl Debug for Definitions

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

Formats the value using the given formatter.

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: 104 bytes