From<proc_macro::Span> is missing for proc_macro2::Span when DOCS_RS=1
#501
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CI failure seems not relevant to my changes. |
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track: dtolnay/proc-macro2#501
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Hello, I narrowed down this error when debugging our CI: https://github.com/AFLplusplus/LibAFL/actions/runs/15085325118/job/42407219490#step:5:180
Generally, as illustrated in GnomedDev/proc-macro-error-2#12 (comment) , when
DOCS_RS=1,proc-macro2will miss the implementationFrom<proc_macro::Span>forproc_macro2::Span(existing inwrapper.rs), causing issues to downstreams.Note a minimum reproduction was also attached in the issue above.
This PR fixes it by adding the implementation when
DOCS_RS=1and thuswrap_proc_macrois not defined. I'm not 100% confident this is the correct place for the fix to go so any inputs are highly welcome =).