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How to leave unrecognized Attributes untouched in ParseStream? #1843

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yuhr opened this issue Jan 15, 2025 · 0 comments
Open

How to leave unrecognized Attributes untouched in ParseStream? #1843

yuhr opened this issue Jan 15, 2025 · 0 comments

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@yuhr
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yuhr commented Jan 15, 2025 •
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As per the documentation I'm forced to use Attribute::parse_outer to parse attributes, but it always consumes the prefix of ParseStream in the all-or-nothing fashion. What's the idiomatic way to leave unrecognized attributes untouched and feed them to further parsing?

From a naïve thought I need an API to peek just one attribute, so that I can consume tokens only if the attribute was recognized.
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@yuhr