Vertices being referenced before having been emitted

[Strum355]

From the spec:

a vertex needs to be emitted before it can be referenced in an edge.

We discovered lsif-dotnet violates this constraint in its output, which caused LSIF files to be rejected by Sourcegraph

Screenshot of rejection from Sourcegraph:

Extract from the malformed LSIF file:

[tcz717]

Hi @Strum355, thanks for submitting the issue. It looks like caused by the new parallel indexer. Did you tried using the legacy mode?(by adding -l parameter) If not, can you do that to validate?

[Strum355]

Legacy mode was successful yes 🙂

[tcz717]

Legacy mode was successful yes 🙂

Ok, I will investigate, and before fixing, revert to using the legacy indexer.

[tcz717]

@shuli106

[tcz717]

Hi @shuli106 , was your malformed lsif file dumped from https://github.com/Alekaei/Commands? I tried to repro it in my local but didn't see the issue
dump.lsif

Commend:

dotnet restore
lsif-dotnet.exe -p 4