Crate rustc_hir 

HIR datatypes. See the rustc dev guide for more info.

Re-exports

pub use lang_items::LangItem;

pub use lang_items::LanguageItems;

pub use target::MethodKind;

pub use target::Target;

pub use hir::*;

Modules

arena 🔒

Declares an arena that can allocate values of any Copy type, and of any !Copy type listed below.

attrs

Data structures for representing parsed attributes in the Rust compiler. Formerly rustc_attr_data_structures.

def

def_id

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.

diagnostic_items

hir 🔒

intravisit

HIR walker for walking the contents of nodes.

lang_items

Defines lang items.

lints

pat_util

stability 🔒

stable_hash_impls 🔒

target

This module lists attribute targets, with conversions from other types.

weak_lang_items

Validity checking for weak lang items

Macros

find_attr

Finds attributes in sequences of attributes by pattern matching.

Structs

Arena

ConstStability

Represents the #[rustc_const_unstable] and #[rustc_const_stable] attributes.

DefaultBodyStability

Represents the #[rustc_default_body_unstable] attribute.

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

PartialConstStability

Excludes const_stable_indirect. This is necessary because when -Zforce-unstable-if-unmarked is set, we need to encode standalone #[rustc_const_stable_indirect] attributes

Stability

Represents the following attributes:

Enums

StabilityLevel

The available stability levels.

StableSince

Rust release in which a feature is stabilized.

UnstableReason

Constants

CRATE_HIR_ID

The HirId corresponding to CRATE_NODE_ID and CRATE_DEF_ID.

CRATE_OWNER_ID

VERSION_PLACEHOLDER

The version placeholder that recently stabilized features contain inside the since field of the #[stable] attribute.

Type Aliases

HirIdMap

HirIdMapEntry

HirIdSet

ItemLocalMap

ItemLocalMapEntry

ItemLocalSet