Struct rustc_ast::ptr::P

pub struct P<T: ?Sized> {
    ptr: Box<T>,
}

An owned smart pointer.

Fields

ptr: Box<T>

Implementations

impl<T: 'static> P<T>

pub fn and_then<U, F>(self, f: F) -> U where
    F: FnOnce(T) -> U, 

Move out of the pointer. Intended for chaining transformations not covered by map.

pub fn into_inner(self) -> T

Equivalent to and_then(|x| x).

pub fn map<F>(self, f: F) -> P<T> where
    F: FnOnce(T) -> T, 

Produce a new P<T> from self without reallocating.

pub fn filter_map<F>(self, f: F) -> Option<P<T>> where
    F: FnOnce(T) -> Option<T>, 

Optionally produce a new P<T> from self without reallocating.

impl<T> P<[T]>

pub const fn new() -> P<[T]>

pub fn from_vec(v: Vec<T>) -> P<[T]>

pub fn into_vec(self) -> Vec<T>

Trait Implementations

impl<T: AstLike + 'static> AstLike for P<T>

const SUPPORTS_CUSTOM_INNER_ATTRS: bool

This is true if this AstLike might support ‘custom’ (proc-macro) inner attributes. Attributes like #![cfg] and #![cfg_attr] are not considered ‘custom’ attributes

fn attrs(&self) -> &[Attribute]

fn visit_attrs(&mut self, f: impl FnOnce(&mut Vec<Attribute>))

fn tokens_mut(&mut self) -> Option<&mut Option<LazyTokenStream>>

impl<T: 'static + Clone> Clone for P<T>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Clone> Clone for P<[T]>

fn clone(&self) -> P<[T]>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: ?Sized + Debug> Debug for P<T>

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

Formats the value using the given formatter.

impl<D: Decoder, T: 'static + Decodable<D>> Decodable<D> for P<T>

fn decode(d: &mut D) -> Result<P<T>, D::Error>

impl<D: Decoder, T: Decodable<D>> Decodable<D> for P<[T]>

fn decode(d: &mut D) -> Result<P<[T]>, D::Error>

impl<T> Default for P<[T]>

fn default() -> P<[T]>

Creates an empty P<[T]>.

impl<T: ?Sized> Deref for P<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T: ?Sized> DerefMut for P<T>

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

Mutably dereferences the value.

impl<T: Display> Display for P<T>

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

Formats the value using the given formatter.

impl<S: Encoder, T: Encodable<S>> Encodable<S> for P<T>

fn encode(&self, s: &mut S) -> Result<(), S::Error>

impl<S: Encoder, T: Encodable<S>> Encodable<S> for P<[T]>

fn encode(&self, s: &mut S) -> Result<(), S::Error>

impl<T> From<Vec<T, Global>> for P<[T]>

fn from(v: Vec<T>) -> Self

Performs the conversion.

impl<T> FromIterator<T> for P<[T]>

fn from_iter<I: IntoIterator<Item = T>>(iter: I) -> P<[T]>

Creates a value from an iterator.

impl<CTX, T> HashStable<CTX> for P<T> where
    T: ?Sized + HashStable<CTX>, 

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

impl<T> Into<Vec<T, Global>> for P<[T]>

fn into(self) -> Vec<T>

Performs the conversion.

impl<T> IntoIterator for P<[T]>

type Item = T

The type of the elements being iterated over.

type IntoIter = IntoIter<T>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<'a, T> IntoIterator for &'a P<[T]>

type Item = &'a T

The type of the elements being iterated over.

type IntoIter = Iter<'a, T>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<T> Pointer for P<T>

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

Formats the value using the given formatter.

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.