Polish some macro parsing code#158577

Merged

rust-bors[bot] merged 19 commits into

rust-lang:mainfrom

bal-e:macro-parsing-polish

Jul 7, 2026

Commits on Jul 1, 2026

Replace a bool flag with `WhichMatcher`
arya dradjica
committed
Treat duplicate binds as a bug
arya dradjica
committed
Replace `EofMatcherPositions` with a regular `SmallVec`
arya dradjica
committed

Commits on Jul 3, 2026

Call `ambiguity_error()` through `Tracker`
arya dradjica
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Stop computing ambiguity error messages in `NoopTracker`
arya dradjica
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Introduce `bb_locs` and `next_locs` intermediates
arya dradjica
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Expand `TtParser` argument to `Tracker::ambiguity()`
arya dradjica
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Inline `TtParser::ambiguity_error()`
arya dradjica
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Move `macro_name` to `CollectTrackerAndEmitter`
arya dradjica
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Out-line `TtParser::ambiguity_error()`
arya dradjica
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Pass `&Parser<'_>` to `Tracker::ambiguity()`
arya dradjica
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Pass `&Parser<'_>` to `TtParser::parse_tt_inner()`
arya dradjica
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Move "multiple successful parses" error to `ambiguity()`
arya dradjica
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Rename `Error` to `Ambiguity`
arya dradjica
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Set `self.result` directly from `ambiguity()`
arya dradjica
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Return `()` from `Track::ambiguity()`
arya dradjica
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Out-line non-terminal parsing error code
arya dradjica
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Remove method defaults from `Tracker`
arya dradjica
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Split up `BestFailure::position_in_tokenstream`
arya dradjica
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