Struct `TokenStream`

pub struct TokenStream { /* private fields */ }

An abstract stream of tokens, or more concretely a sequence of token trees.

This type provides interfaces for iterating over token trees and for collecting token trees into one stream.

Token stream is both the input and output of #[proc_macro], #[proc_macro_attribute] and #[proc_macro_derive] definitions.

Implementations

`impl TokenStream`

fn new() -> Self: Returns an empty TokenStream containing no token trees.
fn is_empty(&self) -> bool: Checks if this TokenStream is empty.

Trait Implementations

`impl Clone for TokenStream`

fn clone(&self) -> TokenStream

`impl Debug for TokenStream`

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

`impl Default for TokenStream`

fn default() -> Self

`impl Display for TokenStream`

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

`impl Extend<Group> for TokenStream`

fn extend<I: IntoIterator<Item = Group>>(&mut self, tokens: I)

`impl Extend<Ident> for TokenStream`

fn extend<I: IntoIterator<Item = Ident>>(&mut self, tokens: I)

`impl Extend<Literal> for TokenStream`

fn extend<I: IntoIterator<Item = Literal>>(&mut self, tokens: I)

`impl Extend<Punct> for TokenStream`

fn extend<I: IntoIterator<Item = Punct>>(&mut self, tokens: I)

`impl Extend<TokenStream> for TokenStream`

fn extend<I: IntoIterator<Item = TokenStream>>(&mut self, streams: I)

`impl Extend<TokenTree> for TokenStream`

fn extend<I: IntoIterator<Item = TokenTree>>(&mut self, tokens: I)

`impl From<TokenStream> for TokenStream`

fn from(inner: TokenStream) -> Self

`impl From<TokenTree> for TokenStream`

fn from(token: TokenTree) -> Self

`impl FromIterator<TokenStream> for TokenStream`

fn from_iter<I: IntoIterator<Item = TokenStream>>(streams: I) -> Self

`impl FromIterator<TokenTree> for TokenStream`

fn from_iter<I: IntoIterator<Item = TokenTree>>(tokens: I) -> Self

`impl FromStr for TokenStream`

type Err = LexError;
fn from_str(src: &str) -> Result<TokenStream, LexError>

`impl IntoIterator for TokenStream`

type Item = TokenTree;
type IntoIter = IntoIter;
fn into_iter(self) -> IntoIter

Auto Trait Implementations

`impl !Send for TokenStream`

`impl !Sync for TokenStream`

`impl Freeze for TokenStream`

`impl RefUnwindSafe for TokenStream`

`impl Unpin for TokenStream`

`impl UnsafeUnpin for TokenStream`

`impl UnwindSafe for TokenStream`

Blanket Implementations

`impl<T> Any for TokenStream where T: 'static + ?Sized,`

fn type_id(&self) -> TypeId

`impl<T> Borrow<T> for TokenStream where T: ?Sized,`

fn borrow(&self) -> &T

`impl<T> BorrowMut<T> for TokenStream where T: ?Sized,`

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

`impl<T> CloneToUninit for TokenStream where T: Clone,`

unsafe fn clone_to_uninit(&self, dest: *mut u8)

`impl<T> From<T> for TokenStream`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> ToOwned for TokenStream where T: Clone,`

type Owned = T;
fn to_owned(&self) -> T
fn clone_into(&self, target: &mut T)

`impl<T> ToString for TokenStream where T: Display + ?Sized,`

fn to_string(&self) -> String

`impl<T, U> Into for TokenStream where U: From<T>,`

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

`impl<T, U> TryFrom for TokenStream where U: Into<T>,`

type Error = never;
fn try_from(value: U) -> Result<T, never>

`impl<T, U> TryInto for TokenStream where U: TryFrom<T>,`

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