Struct rustc_span::def_id::DefId

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#[repr(C)]
pub struct DefId { pub index: DefIndex, pub krate: CrateNum, }
Expand description

A DefId identifies a particular definition, by combining a crate index and a def index.

You can create a DefId from a LocalDefId using local_def_id.to_def_id().

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§index: DefIndex§krate: CrateNum

Implementations§

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impl DefId

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pub fn local(index: DefIndex) -> DefId

Makes a local DefId from the given DefIndex.

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pub fn is_local(self) -> bool

Returns whether the item is defined in the crate currently being compiled.

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pub fn as_local(self) -> Option<LocalDefId>

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pub fn expect_local(self) -> LocalDefId

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pub fn is_crate_root(self) -> bool

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pub fn as_crate_root(self) -> Option<CrateNum>

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pub fn is_top_level_module(self) -> bool

Trait Implementations§

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impl Clone for DefId

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fn clone(&self) -> DefId

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for DefId

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

Formats the value using the given formatter. Read more
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impl<D: SpanDecoder> Decodable<D> for DefId

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impl<E: SpanEncoder> Encodable<E> for DefId

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fn encode(&self, s: &mut E)

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impl From<LocalDefId> for DefId

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fn from(local: LocalDefId) -> DefId

Converts to this type from the input type.
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impl From<LocalModDefId> for DefId

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fn from(typed: LocalModDefId) -> Self

Converts to this type from the input type.
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impl From<ModDefId> for DefId

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fn from(typed: ModDefId) -> Self

Converts to this type from the input type.
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impl Hash for DefId

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fn hash<H: Hasher>(&self, h: &mut H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<CTX: HashStableContext> HashStable<CTX> for DefId

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fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher)

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impl Ord for DefId

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fn cmp(&self, other: &DefId) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for DefId

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for DefId

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fn partial_cmp(&self, other: &DefId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<CTX: HashStableContext> ToStableHashKey<CTX> for DefId

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impl Copy for DefId

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impl Eq for DefId

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impl StructuralPartialEq for DefId

Auto Trait Implementations§

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impl RefUnwindSafe for DefId

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impl Send for DefId

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impl Sync for DefId

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impl Unpin for DefId

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impl UnwindSafe for DefId

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes