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Fix #810: keep hashing the filename#829

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vouillon merged 1 commit into
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ppx-fix
Apr 23, 2025
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Fix #810: keep hashing the filename#829
vouillon merged 1 commit into
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ppx-fix

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Since we only keep the first 36 bits of the string, we get collisions pretty easily if we use the filename directly.

Since we only keep the first 36 bits of the string, we get collisions
pretty easily if we use the filename directly.
@vouillon vouillon requested a review from Julow April 22, 2025 15:27
; ev_kind = Event_after ty
; _ } ->
if pos_cnum' = pos_cnum + 1
then Hashtbl.add events (Filename.basename pos_fname, pos_cnum) ty
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This is only used internally, so we can keep the full path here.

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Makes sense! It would be nice to have a testsuite for the ppx to avoid these in the future. I tested #810 in an ocsigen application that was too small to encounter a collision.

@vouillon vouillon merged commit 61ed373 into master Apr 23, 2025
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@vouillon vouillon deleted the ppx-fix branch April 23, 2025 10:08
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2 participants