Implement stability_implications without a visitor.

[cjgillot]

Since #143845, the Annotator visitor was a no-op when the crate is not staged_api. This PR avoids using a visitor altogether, making stability_implications truly a no-op in most cases.

[cjgillot]

@bors try @rust-timer queue

[rust-bors]

⌛ Trying commit 36f2045 with merge 6c6c56e…

To cancel the try build, run the command @bors try cancel.

[rust-bors]

☀️ Try build successful (CI)
Build commit: 6c6c56e (6c6c56ef12ea98dddfc1fce7376b22dd2ee0a32b, parent: f34ba774c78ea32b7c40598b8ad23e75cdac42a6)

[rust-timer]

Finished benchmarking commit (6c6c56e): comparison URL.

Overall result: ✅ improvements - no action needed

Benchmarking this pull request means it may be perf-sensitive – we'll automatically label it not fit for rolling up. You can override this, but we strongly advise not to, due to possible changes in compiler perf.

@bors rollup=never
@rustbot label: -S-waiting-on-perf -perf-regression

Instruction count

Our most reliable metric. Used to determine the overall result above. However, even this metric can be noisy.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	0.1%	[0.1%, 0.1%]	1
Improvements ✅ (primary)	-0.2%	[-0.4%, -0.2%]	29
Improvements ✅ (secondary)	-0.3%	[-1.0%, -0.0%]	46
All ❌✅ (primary)	-0.2%	[-0.4%, -0.2%]	29

Max RSS (memory usage)

Results (primary -1.0%, secondary 3.4%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	0.4%	[0.4%, 0.4%]	1
Regressions ❌ (secondary)	4.3%	[2.2%, 5.6%]	6
Improvements ✅ (primary)	-2.4%	[-2.4%, -2.4%]	1
Improvements ✅ (secondary)	-1.8%	[-1.8%, -1.8%]	1
All ❌✅ (primary)	-1.0%	[-2.4%, 0.4%]	2

Cycles

Results (primary -2.2%, secondary 3.1%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	3.1%	[3.1%, 3.1%]	1
Improvements ✅ (primary)	-2.2%	[-2.8%, -1.6%]	3
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-2.2%	[-2.8%, -1.6%]	3

Binary size

Results (secondary -0.0%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-0.0%	[-0.0%, -0.0%]	1
All ❌✅ (primary)	-	-	0

Bootstrap: 467.629s -> 465.94s (-0.36%)
Artifact size: 376.97 MiB -> 376.94 MiB (-0.01%)

[rustbot]

r? @SparrowLii

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[lqd]

Looking good, r=me w/ nit

[lqd]

maybe there can be a better name, like can contain generics or something? + a doc comment, e.g. at least mentioning generics_of

[cjgillot]

I modeled the name after pre-existing has_codegen_attrs. Added a doc-comment.

[lqd]

🚀

@bors r+

[bors]

📌 Commit d5f2260 has been approved by lqd

It is now in the queue for this repository.