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Github Always produce sub-obligations when using cached projection result by Aar...

 2 years ago
source link: https://github.com/rust-lang/rust/pull/85382
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Aaron1011 commented 18 days ago •

edited

See #85360

When we skip adding the sub-obligations to the obligation list, we can affect whether or not the final result is EvaluatedToOk or EvaluatedToOkModuloObligations. This creates problems for incremental compilation, since the projection cache is untracked shared state.

To solve this issue, we unconditionally process the sub-obligations. Surprisingly, this is a slight performance win in many cases.


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