[missing_fields_in_debug]: make sure self type is an adt
#11069
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We might be able to write a Thanks again! @bors r+ |
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☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test |
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…k-Simulacrum [beta] Clippy backports for ICE fixes This backports PRs to beta, that fix ICEs, some lint grouping and FP fixes. Namely: - rust-lang/rust-clippy#11191 - rust-lang/rust-clippy#11172 - rust-lang/rust-clippy#11130 - rust-lang/rust-clippy#11106 - rust-lang/rust-clippy#11104 - rust-lang/rust-clippy#11077 - rust-lang/rust-clippy#11070 (This PR is not synced to the Rust repo yet, but I will open a separate PR to get it into `master`, before beta is branched: rust-lang#114938) - rust-lang/rust-clippy#11069 Kind of a big backport, but most of it is tests. r? `@Mark-Simulacrum` cc `@Manishearth`
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Fixes #11063, another ICE that can only happen in core.
This lint needs the
DefIdof the implementor to get its fields, but that ICEs if the implementor does not have aDefId(as is the case with primitive types, e.g.impl Debug for bool), which is where this ICE comes from.This PR changes the check I added in #10897 to be more... robust against
Debugimplementations we don't want to lint.Instead of just checking if the self type is a type parameter and "special casing" one specific case we don't want to lint, we should probably rather just check that the self type is either a struct, an enum or a union and only then continue.
That prevents weird edge cases like this one that can only happen in core.
Again, I don't know if it's even possible to add a test case for this since one cannot implement
Debugfor primitive types outside of the crate that definedDebug(core).I did make sure that this PR no longer ICEs on
impl<T> Debug for Tandimpl Debug for bool.Maybe writing such a test is possible with
#![no_core]and then re-defining theDebugtrait or something like that...?changelog: [
missing_fields_in_debug]: make sure self type is an adt (fixes an ICE in core)r? @Alexendoo (reviewed the last PRs for this lint)