Enum flux_middle::ResolvedDefId

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pub enum ResolvedDefId {
    Local(LocalDefId),
    ExternSpec(LocalDefId, DefId),
    Extern(DefId),
}
Expand description

Normally, a DefId is either local or external, and DefId::as_local can be used to distinguish between the two. However, extern specs introduce a third case: a local definition wrapping an extern spec. This enum is a type level reminder used to differentiate between these three cases.

The construction of ResolvedDefId is not encapsulated, but it is recommended to use GlobalEnv::resolve_id to create one.

This is used when we are given a DefId and we need to resolve it into one of these three cases. For handling local items that may correspond to an extern spec, see MaybeExternId.

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Local(LocalDefId)

A local definition. Corresponds to MaybeExternId::Local.

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ExternSpec(LocalDefId, DefId)

A “dummy” local definition wrapping an extern spec. The LocalDefId is for the local item, and the DefId is the resolved id for the external spec. Corresponds to MaybeExternId::Extern.

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Extern(DefId)

An external definition with no corresponding (local) extern spec.

Implementations§

Trait Implementations§

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impl Clone for ResolvedDefId

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fn clone(&self) -> ResolvedDefId

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 Copy for ResolvedDefId

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<P> IntoQueryParam<P> for P

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fn into_query_param(self) -> P

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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.