rust/compiler/rustc_query_system
bors f41927f309 Auto merge of #108820 - cjgillot:ensure-on-disk, r=oli-obk
Ensure value is on the on-disk cache before returning from `ensure()`.

The current logic for `ensure()` a query just checks that the node is green in the dependency graph.
However, a lot of places use `ensure()` to prevent the query from being called later. This is the case before stealing a query result.

If the query is actually green but the value is not available in the on-disk cache, `ensure` would return, but a subsequent call to the full query would run the code, and attempt to read from a stolen value.

This PR conforms the query system to the usage by checking whether the queried value is loadable from disk before returning.

Sadly, I can't manage to craft a proper test...

Should fix all instances of "attempted to read from stolen value".
2023-03-12 14:00:28 +00:00
..
src Auto merge of #108820 - cjgillot:ensure-on-disk, r=oli-obk 2023-03-12 14:00:28 +00:00
Cargo.toml Upgrade thin-vec from 0.2.9 to 0.2.12. 2023-02-21 11:51:55 +11:00
messages.ftl Simplify message paths 2023-03-11 22:51:57 +01:00