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.

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.

Layout

Note: Most layout information is completely unstable and may be different between compiler versions and platforms. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes