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Repair rust-analyzer for tonic files #1604



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In my codebase I have files generated by prost and by tonic. I noticed that rust-analyzer was working fine with files generated by prost but not with files generated by tonic.


I found out that rust-analyzer doesn't like when a generated file is included with relative path. It only works with absolute path (i.g. when using the OUT_DIR env variable).

I also found out that tonic always calls prost_build::Config.out_dir, which causes prost to always generate includes with relative paths.

My solution was to avoid setting the out_dir in prost when unnecessary.

@LucioFranco LucioFranco added this pull request to the merge queue Jan 25, 2024
Merged via the queue into hyperium:master with commit f714f42 Jan 25, 2024
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2 participants