Function rustc_expand::mbe::macro_parser::inner_parse_loop

pub(in mbe::macro_parser) fn inner_parse_loop<'root, 'tt>(
    cur_items: &mut SmallVec<[MatcherPosHandle<'root, 'tt>; 1]>, 
    next_items: &mut Vec<MatcherPosHandle<'root, 'tt>>, 
    eof_items: &mut SmallVec<[MatcherPosHandle<'root, 'tt>; 1]>, 
    bb_items: &mut SmallVec<[MatcherPosHandle<'root, 'tt>; 1]>, 
    token: &Token
) -> ParseResult<()>

Process the matcher positions of cur_items until it is empty. In the process, this will produce more items in next_items, eof_items, and bb_items.

For more info about the how this happens, see the module-level doc comments and the inline comments of this function.

Parameters

• sess: the parsing session into which errors are emitted.
• cur_items: the set of current items to be processed. This should be empty by the end of a successful execution of this function.
• next_items: the set of newly generated items. These are used to replenish cur_items in the function parse.
• eof_items: the set of items that would be valid if this was the EOF.
• bb_items: the set of items that are waiting for the black-box parser.
• token: the current token of the parser.
• span: the Span in the source code corresponding to the token trees we are trying to match against the matcher positions in cur_items.

Returns

A ParseResult. Note that matches are kept track of through the items generated.