Struct syntax::tokenstream::TokenStream

pub struct TokenStream { /* fields omitted */ }

🔬 This is a nightly-only experimental API. (rustc_private)

Token Streams

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 back-compat.

Methods

impl TokenStream

fn empty() -> TokenStream

🔬 This is a nightly-only experimental API. (rustc_private)

fn is_empty(&self) -> bool

🔬 This is a nightly-only experimental API. (rustc_private)

fn concat(streams: Vec<TokenStream>) -> TokenStream

🔬 This is a nightly-only experimental API. (rustc_private)

fn trees(&self) -> Cursor

🔬 This is a nightly-only experimental API. (rustc_private)

fn into_trees(self) -> Cursor

🔬 This is a nightly-only experimental API. (rustc_private)

fn eq_unspanned(&self, other: &TokenStream) -> bool

🔬 This is a nightly-only experimental API. (rustc_private)

Compares two TokenStreams, checking equality without regarding span information.

Trait Implementations

impl Clone for TokenStream

fn clone(&self) -> TokenStream

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TokenStream

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl From<TokenTree> for TokenStream

fn from(tt: TokenTree) -> TokenStream

Performs the conversion.

impl<T: Into<TokenStream>> FromIterator<T> for TokenStream

fn from_iter<I: IntoIterator<Item=T>>(iter: I) -> Self

Creates a value from an iterator.

impl Eq for TokenStream

impl PartialEq<TokenStream> for TokenStream

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

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

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl From<ThinTokenStream> for TokenStream

fn from(stream: ThinTokenStream) -> TokenStream

Performs the conversion.

impl Display for TokenStream

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

Formats the value using the given formatter.

impl Encodable for TokenStream

fn encode<E: Encoder>(&self, encoder: &mut E) -> Result<(), E::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

deprecated in favor of rustc-serialize on crates.io

impl Decodable for TokenStream

fn decode<D: Decoder>(decoder: &mut D) -> Result<TokenStream, D::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

deprecated in favor of rustc-serialize on crates.io

impl Hash for TokenStream

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

Feeds this value into the state given, updating the hasher as necessary.

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher

Feeds a slice of this type into the state provided.