Struct rustc_hir::def_id::LocalDefId

pub struct LocalDefId(DefIndex);

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

A LocalDefId is equivalent to a DefId with krate == LOCAL_CRATE. Since we encode this information in the type, we can ensure at compile time that no DefIds from upstream crates get thrown into the mix. There are quite a few cases where we know that only DefIds from the local crate are expected and a DefId from a different crate would signify a bug somewhere. This is when LocalDefId comes in handy.

Methods

impl LocalDefId

pub fn from_def_id(def_id: DefId) -> LocalDefId

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

pub fn to_def_id(self) -> DefId

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Trait Implementations

impl Clone for LocalDefId

fn clone(&self) -> LocalDefId

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for LocalDefId

impl Debug for LocalDefId

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

Formats the value using the given formatter.

impl Eq for LocalDefId

impl Hash for LocalDefId

fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, 

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl PartialEq<LocalDefId> for LocalDefId

fn eq(&self, other: &LocalDefId) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &LocalDefId) -> bool

This method tests for !=.

impl StructuralEq for LocalDefId

impl StructuralPartialEq for LocalDefId

impl UseSpecializedDecodable for LocalDefId

fn default_decode<D>(&mut D) -> Result<Self, <D as Decoder>::Error> where
    D: Decoder, 

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Defaults to returning an error (see SpecializationError).

impl UseSpecializedEncodable for LocalDefId

fn default_encode<E>(&self, &mut E) -> Result<(), <E as Encoder>::Error> where
    E: Encoder, 

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Defaults to returning an error (see SpecializationError).