Struct rustc::hir::def_id::LocalDefId

pub struct LocalDefId(DefIndex);

🔬 This is a nightly-only experimental API. (rustc_private)

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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 a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

pub fn to_def_id(self) -> DefId

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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 PartialEq 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 Eq for LocalDefId

fn assert_receiver_is_total_eq(&self)

impl Hash for LocalDefId

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

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 Debug for LocalDefId

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

Formats the value using the given formatter.

impl UseSpecializedEncodable for LocalDefId

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

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Defaults to returning an error (see SpecializationError).

impl UseSpecializedDecodable for LocalDefId

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

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Defaults to returning an error (see SpecializationError).

impl<'a> HashStable<StableHashingContext<'a>> for LocalDefId

fn hash_stable<W: StableHasherResult>(     &self,     hcx: &mut StableHashingContext<'a>,     hasher: &mut StableHasher<W> )

🔬 This is a nightly-only experimental API. (rustc_private)

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impl<'a> ToStableHashKey<StableHashingContext<'a>> for LocalDefId

type KeyType = DefPathHash

🔬 This is a nightly-only experimental API. (rustc_private)

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fn to_stable_hash_key(&self, hcx: &StableHashingContext<'a>) -> DefPathHash

🔬 This is a nightly-only experimental API. (rustc_private)

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impl<'a, 'tcx, 'x> SpecializedDecoder<LocalDefId> for CacheDecoder<'a, 'tcx, 'x>

fn specialized_decode(&mut self) -> Result<LocalDefId, Self::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Decode a value in a manner specific to this decoder state.

impl<'enc, 'a, 'tcx, E> SpecializedEncoder<LocalDefId> for CacheEncoder<'enc, 'a, 'tcx, E> where     E: 'enc + TyEncoder,

fn specialized_encode(&mut self, id: &LocalDefId) -> Result<(), Self::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Encode the value in a manner specific to this encoder state.