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 hir::*;

pub use hir_id::*;

Modules

arena 🔒

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 🔒

hir_id

intravisit

HIR walker for walking the contents of nodes.

lang_items

Defines lang items.

lints

pat_util

stability 🔒

stable_hash_impls 🔒

target 🔒

This module implements some validity checks for attributes. In particular it verifies that #[inline] and #[repr] attributes are attached to items that actually support them and if there are conflicts between multiple such attributes attached to the same item.

version 🔒

weak_lang_items

Validity checking for weak lang items

Macros

arena_types

This higher-order macro declares a list of types which can be allocated by Arena. Note that all Copy types can be allocated by default and need not be specified here.

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.

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

RustcVersion

Stability

Represents the following attributes:

Enums

MethodKind

StabilityLevel

The available stability levels.

StableSince

Rust release in which a feature is stabilized.

Target

UnstableReason

Constants

VERSION_PLACEHOLDER

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

Traits

ArenaAllocatable

HashStableContext

Requirements for a StableHashingContext to be used in this crate. This is a hack to allow using the HashStable_Generic derive macro instead of implementing everything in rustc_middle.