Crate rustc_hir_id 

Library containing Id types from rustc_hir, split out so crates can use it without depending on all of rustc_hir (which is large and depends on other large things like rustc_target).

Re-exports

pub(crate) use self; 🔒

pub(crate) use Debug; 🔒

pub(crate) use Debug; 🔒

pub(crate) use StableHash; 🔒

pub(crate) use StableHashCtxt; 🔒

pub(crate) use StableHasher; 🔒

pub(crate) use StableOrd; 🔒

pub(crate) use ToStableHashKey; 🔒

pub(crate) use Decodable; 🔒

pub(crate) use Encodable; 🔒

pub(crate) use StableHash; 🔒

pub(crate) use rustc_serialize::ContextOrd; 🔒

pub(crate) use CRATE_DEF_ID; 🔒

pub(crate) use DefId; 🔒

pub(crate) use DefIndex; 🔒

pub(crate) use DefPathHash; 🔒

pub(crate) use LocalDefId; 🔒

pub(crate) use LocalModId; 🔒

Modules

def_path_hash_map

definitions

For each definition, we track the following data. A definition here is defined somewhat circularly as “something with a DefId”, but it generally corresponds to things like structs, enums, etc. There are also some rather random cases (like const initializer expressions) that are mostly just leftovers.

Structs

HirId

Uniquely identifies a node in the HIR of the current crate. It is composed of the owner, which is the LocalDefId of the directly enclosing hir::Item, hir::TraitItem, or hir::ImplItem (i.e., the closest “item-like”), and the local_id which is unique within the given owner.

ItemLocalId

An ItemLocalId uniquely identifies something within a given “item-like”; that is, within a hir::Item, hir::TraitItem, or hir::ImplItem. There is no guarantee that the numerical value of a given ItemLocalId corresponds to the node’s position within the owning item in any way, but there is a guarantee that the ItemLocalIds within an owner occupy a dense range of integers starting at zero, so a mapping that maps all or most nodes within an “item-like” to something else can be implemented by a Vec instead of a tree or hash map.

OwnerId

Constants

CRATE_HIR_ID

The HirId corresponding to CRATE_NODE_ID and CRATE_DEF_ID.

CRATE_OWNER_ID

Type Aliases

HirIdMap

HirIdMapEntry

HirIdSet

ItemLocalMap

ItemLocalMapEntry

ItemLocalSet