Only modify eof_items
if token == Eof
.
Because that's the condition under which `eof_items` is used.
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parent
8bd1bcad58
commit
83044714a1
1 changed files with 7 additions and 4 deletions
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@ -516,7 +516,8 @@ fn parse_tt_inner<'root, 'tt>(
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bb_items: &mut SmallVec<[MatcherPosHandle<'root, 'tt>; 1]>,
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bb_items: &mut SmallVec<[MatcherPosHandle<'root, 'tt>; 1]>,
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token: &Token,
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token: &Token,
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) -> Option<NamedParseResult> {
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) -> Option<NamedParseResult> {
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// Matcher positions that would be valid if the macro invocation was over now
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// Matcher positions that would be valid if the macro invocation was over now. Only modified if
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// `token == Eof`.
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let mut eof_items = EofItems::None;
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let mut eof_items = EofItems::None;
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// Pop items from `cur_items` until it is empty.
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// Pop items from `cur_items` until it is empty.
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@ -592,9 +593,11 @@ fn parse_tt_inner<'root, 'tt>(
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// If we are not in a repetition, then being at the end of a matcher means that we
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// If we are not in a repetition, then being at the end of a matcher means that we
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// have reached the potential end of the input.
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// have reached the potential end of the input.
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debug_assert_eq!(idx, len);
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debug_assert_eq!(idx, len);
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eof_items = match eof_items {
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if *token == token::Eof {
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EofItems::None => EofItems::One(item),
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eof_items = match eof_items {
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EofItems::One(_) | EofItems::Multiple => EofItems::Multiple,
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EofItems::None => EofItems::One(item),
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EofItems::One(_) | EofItems::Multiple => EofItems::Multiple,
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}
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}
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}
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}
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}
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} else {
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} else {
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