Struct rustc_ap_rustc_ast::tokenstream::TokenStream[−][src]

pub struct TokenStream(_);
Expand description

A TokenStream is an abstract sequence of tokens, organized into TokenTrees.

The goal is for procedural macros to work with TokenStreams and TokenTrees instead of a representation of the abstract syntax tree. Today’s TokenTrees can still contain AST via token::Interpolated for backwards compatibility.

Implementations

impl TokenStream[src]

pub fn add_comma(&self) -> Option<(TokenStream, Span)>[src]

Given a TokenStream with a Stream of only two arguments, return a new TokenStream separating the two arguments with a comma for diagnostic suggestions.

impl TokenStream[src]

pub fn new(streams: Vec<TreeAndSpacing>) -> TokenStream[src]

pub fn is_empty(&self) -> bool[src]

pub fn len(&self) -> usize[src]

pub fn from_streams(streams: SmallVec<[TokenStream; 2]>) -> TokenStream[src]

pub fn trees(&self) -> Cursorⓘ

Notable traits for Cursor

impl Iterator for Cursor type Item = TokenTree;
[src]

pub fn into_trees(self) -> Cursorⓘ

Notable traits for Cursor

impl Iterator for Cursor type Item = TokenTree;
[src]

pub fn eq_unspanned(&self, other: &TokenStream) -> bool[src]

Compares two TokenStreams, checking equality without regarding span information.

pub fn map_enumerated<F: FnMut(usize, &TokenTree) -> TokenTree>(
    self,
    f: F
) -> TokenStream[src]

Trait Implementations

impl Clone for TokenStream[src]

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

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

Formats the value using the given formatter. Read more

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

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

impl Default for TokenStream[src]

fn default() -> TokenStream[src]

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

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

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

impl From<TokenTree> for TokenStream[src]

fn from(tree: TokenTree) -> TokenStream[src]

Performs the conversion.

impl FromIterator<TokenTree> for TokenStream[src]

fn from_iter<I: IntoIterator<Item = TokenTree>>(iter: I) -> Self[src]

Creates a value from an iterator. Read more

impl<CTX> HashStable<CTX> for TokenStream where
    CTX: HashStableContext, [src]

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

impl PartialEq<TokenStream> for TokenStream[src]

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

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

#[must_use]
fn ne(&self, other: &Rhs) -> bool1.0.0[src]

This method tests for !=.

impl Eq for TokenStream[src]

Auto Trait Implementations

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<Q, K> Equivalent<K> for Q where
    K: Borrow<Q> + ?Sized,
    Q: Eq + ?Sized, [src]

pub fn equivalent(&self, key: &K) -> bool[src]

Compare self to key and return true if they are equal.

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

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

Performs the conversion.

impl<T> Instrument for T[src]

fn instrument(self, span: Span) -> Instrumented<Self>[src]

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>[src]

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

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

Performs the conversion.

impl<T> Same<T> for T

type Output = T

Should always be Self

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, 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.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>, 

pub fn vzip(self) -> V

impl<'a, T> Captures<'a> for T where
    T: ?Sized, [src]

impl<T> Erased for T[src]