Struct rustc_parse::lexer::tokentrees::TokenTreesReader

pub(super) struct TokenTreesReader<'a> {
    string_reader: StringReader<'a>,
    token: Token,
    open_braces: Vec<(Delimiter, Span)>,
    unmatched_braces: Vec<UnmatchedBrace>,
    matching_delim_spans: Vec<(Delimiter, Span, Span)>,
    last_unclosed_found_span: Option<Span>,
    last_delim_empty_block_spans: FxHashMap<Delimiter, Span>,
    matching_block_spans: Vec<(Span, Span)>,
}

Fields

string_reader: StringReader<'a>

token: Token

The “next” token, which has been obtained from the StringReader but not yet handled by the TokenTreesReader.

open_braces: Vec<(Delimiter, Span)>

Stack of open delimiters and their spans. Used for error message.

unmatched_braces: Vec<UnmatchedBrace>

matching_delim_spans: Vec<(Delimiter, Span, Span)>

The type and spans for all braces

Used only for error recovery when arriving to EOF with mismatched braces.

last_unclosed_found_span: Option<Span>

last_delim_empty_block_spans: FxHashMap<Delimiter, Span>

Collect empty block spans that might have been auto-inserted by editors.

matching_block_spans: Vec<(Span, Span)>

Collect the spans of braces (Open, Close). Used only for detecting if blocks are empty and only braces.

Implementations

impl<'a> TokenTreesReader<'a>

pub(super) fn parse_all_token_trees(
    string_reader: StringReader<'a>
) -> (PResult<'a, TokenStream>, Vec<UnmatchedBrace>)

fn parse_token_trees(&mut self, is_delimited: bool) -> PResult<'a, TokenStream>

fn eof_err(&mut self) -> PErr<'a>

fn parse_token_tree_open_delim(&mut self, open_delim: Delimiter) -> TokenTree

fn close_delim_err(&mut self, delim: Delimiter) -> PErr<'a>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. 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: 240 bytes