rust/compiler/rustc_query_impl
bors 1aeb99d248 Auto merge of #122156 - Zoxc:side-effect-dep-node, r=oli-obk
Represent diagnostic side effects as dep nodes

This changes diagnostic to be tracked as a special dep node (`SideEffect`) instead of having a list of side effects associated with each dep node. `SideEffect` is always red and when forced, it emits the diagnostic and marks itself green. Each emitted diagnostic generates a new `SideEffect` with an unique dep node index.

Some implications of this:

- Diagnostic may now be emitted more than once as they can be emitted once when the `SideEffect` gets marked green and again if the task it depends on needs to be re-executed due to another node being red. It relies on deduplicating of diagnostics to avoid that.

- Anon tasks which emits diagnostics will no longer *incorrectly* be merged with other anon tasks.

- Reusing a CGU will now emit diagnostics from the task generating it.
2025-03-19 15:51:54 +00:00
..
src Auto merge of #122156 - Zoxc:side-effect-dep-node, r=oli-obk 2025-03-19 15:51:54 +00:00
Cargo.toml Revert "Use workspace lints for crates in compiler/ #138084" 2025-03-10 18:12:47 +08:00