Struct rustc_ast::tokenstream::AttrAnnotatedTokenStream

pub struct AttrAnnotatedTokenStream(pub Lrc<Vec<(AttrAnnotatedTokenTree, Spacing)>>);

A AttrAnnotatedTokenStream is similar to a TokenStream, but with extra information about the tokens for attribute targets. This is used during expansion to perform early cfg-expansion, and to process attributes during proc-macro invocations.

Implementations

impl AttrAnnotatedTokenStream

pub fn new(
    tokens: Vec<(AttrAnnotatedTokenTree, Spacing)>
) -> AttrAnnotatedTokenStream

pub fn to_tokenstream(&self) -> TokenStream

Converts this AttrAnnotatedTokenStream to a plain TokenStream During conversion, AttrAnnotatedTokenTree::Attributesget 'flattened' back to aTokenStreamof the formouter_attr attr_target`. If there are inner attributes, they are inserted into the proper place in the attribute target tokens.

Trait Implementations

impl Clone for AttrAnnotatedTokenStream

fn clone(&self) -> AttrAnnotatedTokenStream

Returns a copy of the value.

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

Performs copy-assignment from source.

impl CreateTokenStream for AttrAnnotatedTokenStream

fn create_token_stream(&self) -> AttrAnnotatedTokenStream

impl Debug for AttrAnnotatedTokenStream

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

Formats the value using the given formatter.

impl<__D: Decoder> Decodable<__D> for AttrAnnotatedTokenStream

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

impl Default for AttrAnnotatedTokenStream

fn default() -> AttrAnnotatedTokenStream

Returns the “default value” for a type.

impl<__E: Encoder> Encodable<__E> for AttrAnnotatedTokenStream

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

impl From<(AttrAnnotatedTokenTree, Spacing)> for AttrAnnotatedTokenStream

fn from(
    (tree, spacing): (AttrAnnotatedTokenTree, Spacing)
) -> AttrAnnotatedTokenStream

Performs the conversion.