Nicholas Nethercote b5ecbbb998 Remove TokenCursorFrame. ... The motivation here is to eliminate the `Option<(Delimiter, DelimSpan)>`, which is `None` for the outermost token stream and `Some` for all other token streams. We are already treating the innermost frame specially -- this is the `frame` vs `stack` distinction in `TokenCursor`. We can push that further so that `frame` only contains the cursor, and `stack` elements contain the delimiters for their children. When we are in the outermost token stream `stack` is empty, so there are no stored delimiters, which is what we want because the outermost token stream *has* no delimiters. This change also shrinks `TokenCursor`, which shrinks `Parser` and `LazyAttrTokenStreamImpl`, which is nice.		2023-02-03 10:06:52 +11:00
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src	Remove TokenCursorFrame.	2023-02-03 10:06:52 +11:00
Cargo.toml	Use ThinVec in ast::Path.	2022-11-17 13:56:38 +11:00