Stuart Cook 63712e0f9d Rollup merge of #154529 - Zalathar:setup-dep-graph, r=cjgillot ...

Make `setup_dep_graph` incremental-only and more straightforward

The existing code contains some very strange control flow that can put the dep graph into an inconsistent and untested state if streaming output setup fails.

(Specifically, that failure would put `DepGraph` into an "empty" state intended for non-incremental compilation, but other parts of the compiler would still think that incremental mode is enabled due to `sess.opts.incremental`.)

This PR therefore performs a big overhaul of `setup_dep_graph` by:

- Returning immediately in non-incremental mode.
- Exiting immediately if dep-graph streaming output couldn't be set up.
- Inlining some "helper" functions that were more confusing than helpful.

2026-04-05 13:38:16 +10:00

..

src

Rollup merge of #154529 - Zalathar:setup-dep-graph, r=cjgillot

2026-04-05 13:38:16 +10:00

Cargo.toml

Port rustc_if_this_changed/rustc_then_this_would_need to attr parser

2026-02-04 21:00:36 +00:00