Struct rustc_hir::def::PerNS

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pub struct PerNS<T> {
    pub value_ns: T,
    pub type_ns: T,
    pub macro_ns: T,
}

Expand description

Just a helper ‒ separate structure for each namespace.

Fields

value_ns: Ttype_ns: Tmacro_ns: T

Implementations

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pub fn is_empty(&self) -> bool

Returns true if all the items in this collection are None.

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pub fn present_items(self) -> impl Iterator<Item = T>

Returns an iterator over the items which are Some.

Trait Implementations

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impl<T: Clone> Clone for PerNS<T>

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fn clone(&self) -> PerNS<T>

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl<T: Debug> Debug for PerNS<T>

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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<T: Default> Default for PerNS<T>

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fn default() -> PerNS<T>

Returns the “default value” for a type. Read more

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impl<T> Index<Namespace> for PerNS<T>

type Output = T

The returned type after indexing.

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fn index(&self, ns: Namespace) -> &T

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

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impl<T> IndexMut<Namespace> for PerNS<T>

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fn index_mut(&mut self, ns: Namespace) -> &mut T

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

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impl<T: Copy> Copy for PerNS<T>

Auto Trait Implementations

impl<T> RefUnwindSafe for PerNS<T>where
T: RefUnwindSafe,

impl<T> Send for PerNS<T>where
T: Send,

impl<T> Sync for PerNS<T>where
T: Sync,

impl<T> Unpin for PerNS<T>where
T: Unpin,

impl<T> UnwindSafe for PerNS<T>where
T: UnwindSafe,

Blanket Implementations

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,

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fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &[u8]`impl Read for &[u8]impl Write for &mut [u8]`

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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

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

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

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 Twhere
T: Clone,

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 for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.

Struct rustc_hir::def::PerNS

Fields

Implementations

impl<T> PerNS<T>

pub fn map<U, F: FnMut(T) -> U>(self, f: F) -> PerNS<U>

pub fn into_iter(self) -> IntoIter<T, 3>

pub fn iter(&self) -> IntoIter<&T, 3>

impl<T> PerNS<Option<T>>

pub fn is_empty(&self) -> bool

pub fn present_items(self) -> impl Iterator<Item = T>

Trait Implementations

impl<T: Clone> Clone for PerNS<T>

fn clone(&self) -> PerNS<T>

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

impl<T: Debug> Debug for PerNS<T>

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

impl<T: Default> Default for PerNS<T>

fn default() -> PerNS<T>

impl<T> Index<Namespace> for PerNS<T>

type Output = T

fn index(&self, ns: Namespace) -> &T

impl<T> IndexMut<Namespace> for PerNS<T>

fn index_mut(&mut self, ns: Namespace) -> &mut T

impl<T: Copy> Copy for PerNS<T>

Auto Trait Implementations

impl<T> RefUnwindSafe for PerNS<T>where T: RefUnwindSafe,

impl<T> Send for PerNS<T>where T: Send,

impl<T> Sync for PerNS<T>where T: Sync,

impl<T> Unpin for PerNS<T>where T: Unpin,

impl<T> UnwindSafe for PerNS<T>where T: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere T: Copy,

fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

fn allocate_from_iter( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>) -> &'a mut [T]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

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

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

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

Layout

impl<T> RefUnwindSafe for PerNS<T>where
T: RefUnwindSafe,

impl<T> Send for PerNS<T>where
T: Send,

impl<T> Sync for PerNS<T>where
T: Sync,

impl<T> Unpin for PerNS<T>where
T: Unpin,

impl<T> UnwindSafe for PerNS<T>where
T: UnwindSafe,

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

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,

fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &[u8]`impl Read for &[u8]impl Write for &mut [u8]`

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

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

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,