Ignore none locations instead of ghost locations
#110
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goldfirere
approved these changes
Oct 16, 2024
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I'm converting this to a draft PR for now because I realized some other changes are also necessary. |
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This PR is ready for review again. |
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Holding off on further review pending oxcaml/oxcaml#3137 |
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This is now ready for any further necessary review |
goldfirere
approved these changes
Oct 24, 2024
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Currently, the occurrences query ignores identifiers if their location is "ghost". This causes issues with finding occurrences in the presence of let punning. Also, this probably produces some undesirable behavior in the presence of ppxs (occurrences within ppx-generated code will be ignored). This PR changes occurrences to instead ignore identifiers whose location is
Location.none.This PR also causes the occurrences query to begin filtering occurrences read from an index file. This goes in hand with this flambda PR, which causes occurrences in cmt/cms files to not be pre-filtered. Before, flambda also filtered "ghost" locations when producing cmt/cms files. Now, it will do no filtering, leaving the onus on Merlin.
Because of this, one of the tests introduced by this PR is left unfixed - it will be corrected once the flambda PR is merged. I've made a separate draft PR (#109) that contains the changes from this PR, but it is based on the flambda version that contains the relevant patch. In that draft PR, the test is corrected and passing.