feat: Add profile-specific configuration for disallowed methods and t…

[Lallapallooza]

Add profile-scoped disallow lists for methods and types, wiring the new configuration tables through a shared resolver that can be toggled with #[clippy::disallowed_profile] attributes.

• extend clippy_config::Conf to parse [profiles.*] tables with per-profile disallowed-methods and disallowed-types entries through reusable helpers
• introduce clippy_utils::disallowed_profiles to resolve #[clippy::disallowed_profile(s)] attributes with caching, diagnostics for bad inputs, and shared symbol registrations
• teach DisallowedMethods and DisallowedTypes to honor active profiles, reuse the combined profile set, and annotate diagnostics with the triggering profile name
• add UI TOML coverage for per-profile behavior and refresh the unknown-key fixture for the new configuration entries
• register the new attributes and symbols so tool attributes remain recognized and pedantic lints stay clean

changelog: [disallowed_methods]: allow selecting per-scope disallow lists via [profiles.] and the clippy::disallowed_profile attribute changelog: [disallowed_types]: allow selecting per-scope disallow lists via [profiles.] and the clippy::disallowed_profile attribute

[rustbot]

r? @samueltardieu

rustbot has assigned @samueltardieu.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

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Why was this reviewer chosen?

The reviewer was selected based on:

• Owners of files modified in this PR: 8 candidates
• 8 candidates expanded to 8 candidates
• Random selection from Jarcho, dswij, llogiq, samueltardieu

[Jarcho]

@rustbot label lint-nominated

Also note #17277 which was an optimization made after this landed previously.

[rustbot]

This lint has been nominated for inclusion.

A FCP topic has been created on Zulip.

[Lallapallooza]

@Jarcho Hi, are there any updates on FCP?

[Lallapallooza]

@Jarcho @blyxyas Hello, are there any updates on FCP?

[Lallapallooza]

@Jarcho @blyxyas @samueltardieu Hello, are there any updates on FCP?

[rustbot]

This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

[Lallapallooza]

@Jarcho @blyxyas @samueltardieu

Where this stands:

• feat: Add profile-specific configuration for disallowed methods and types #15779, which implemented this, was reviewed and merged.
• It was reverted in Revert "feat: Add profile-specific configuration for disallowed methods and types" #17251 for process reasons, not for anything in the code.
• I reopened it as this PR on 24.06.2026. It was nominated the same day.
• I've asked for an update three times since. There has been no reply on this PR from anyone.
• It is now rebased onto current master, CI is green, and it is mergeable.

I'm not asking for a merge, I'm asking for a decision. If something is blocking it, I'd like to know what.

[blyxyas]

Hi @Lallapallooza, I'm sorry for all these delays. We've had a real reviewer shortage, which was greatly exacerbated by your proposal being a big one. I appreciate a lot the effort you've put into this, and I want to see it being merged.

The FCP process is simply because at one point we had too many lints, and had to implement some friction between big changes being made to avoid tech debt being merged too quickly.

I've had my resources to work on Clippy greatly improved, so I'll be taking more care of your feature from now on.

Again, sorry for the delays, due to the volunteer-based nature of the project, these things sometimes happen.

[blyxyas]

If you want to participate in the FCP judging process, it's open and public here https://rust-lang.zulipchat.com/#narrow/channel/577190-t-clippy.2Ffcp/topic/FCP.20rust-clippy.2317301.3A.20feat.3A.20Add.20profile-specific.20configura.E2.80.A6/with/614807707

[rustbot]

☔ The latest upstream changes (possibly #17607) made this pull request unmergeable. Please resolve the merge conflicts.