Struct rustc_hir::hir_id::HirId[][src]

pub struct HirId {
    pub owner: LocalDefId,
    pub local_id: ItemLocalId,
}

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.

This two-level structure makes for more stable values: One can move an item around within the source code, or add or remove stuff before it, without the local_id part of the HirId changing, which is a very useful property in incremental compilation where we have to persist things through changes to the code base.

Fields

owner: LocalDefIdlocal_id: ItemLocalId

Implementations

impl HirId[src]

pub fn expect_owner(self) -> LocalDefId[src]

pub fn as_owner(self) -> Option<LocalDefId>[src]

pub fn make_owner(owner: LocalDefId) -> Self[src]

Trait Implementations

impl Clone for HirId[src]

fn clone(&self) -> HirId[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl Debug for HirId[src]

fn fmt(&self, f: &mut Formatter<'_>) -> Result[src]

Formats the value using the given formatter. Read more

impl<__D: Decoder> Decodable<__D> for HirId[src]

fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>[src]

impl Display for HirId[src]

fn fmt(&self, f: &mut Formatter<'_>) -> Result[src]

Formats the value using the given formatter. Read more

impl<__E: Encoder> Encodable<__E> for HirId[src]

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>[src]

impl Hash for HirId[src]

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

Feeds this value into the given Hasher. Read more

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

Feeds a slice of this type into the given Hasher. Read more

impl<HirCtx: HashStableContext> HashStable<HirCtx> for HirId[src]

fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher)[src]

impl<T> Index<HirId> for HirIdVec<T>[src]

type Output = T

The returned type after indexing.

fn index(&self, id: HirId) -> &T[src]

Performs the indexing (container[index]) operation. Read more

impl<T> IndexMut<HirId> for HirIdVec<T>[src]

fn index_mut(&mut self, id: HirId) -> &mut T[src]

Performs the mutable indexing (container[index]) operation. Read more

impl Ord for HirId[src]

fn cmp(&self, other: &HirId) -> Ordering[src]

This method returns an Ordering between self and other. Read more

#[must_use]
fn max(self, other: Self) -> Self
1.21.0[src]

Compares and returns the maximum of two values. Read more

#[must_use]
fn min(self, other: Self) -> Self
1.21.0[src]

Compares and returns the minimum of two values. Read more

#[must_use]
fn clamp(self, min: Self, max: Self) -> Self
1.50.0[src]

Restrict a value to a certain interval. Read more

impl PartialEq<HirId> for HirId[src]

fn eq(&self, other: &HirId) -> bool[src]

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

fn ne(&self, other: &HirId) -> bool[src]

This method tests for !=.

impl PartialOrd<HirId> for HirId[src]

fn partial_cmp(&self, other: &HirId) -> Option<Ordering>[src]

This method returns an ordering between self and other values if one exists. Read more

#[must_use]
fn lt(&self, other: &Rhs) -> bool
1.0.0[src]

This method tests less than (for self and other) and is used by the < operator. Read more

#[must_use]
fn le(&self, other: &Rhs) -> bool
1.0.0[src]

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

#[must_use]
fn gt(&self, other: &Rhs) -> bool
1.0.0[src]

This method tests greater than (for self and other) and is used by the > operator. Read more

#[must_use]
fn ge(&self, other: &Rhs) -> bool
1.0.0[src]

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl<HirCtx: HashStableContext> ToStableHashKey<HirCtx> for HirId[src]

impl Copy for HirId[src]

impl Eq for HirId[src]

impl StructuralEq for HirId[src]

impl StructuralPartialEq for HirId[src]

Auto Trait Implementations

impl RefUnwindSafe for HirId

impl Send for HirId

impl Sync for HirId

impl Unpin for HirId

impl UnwindSafe for HirId

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T[src]

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)[src]

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

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for T where
    T: Display + ?Sized
[src]

pub default fn to_string(&self) -> String[src]

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.