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Make proc_macro_derive_resolution_fallback a future-breakage lint

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When `cargo report future-incompatibilities` is stabilized
(see #71249), this will cause dependencies that trigger
this lint to be included in the report.
This commit is contained in:
Aaron Hill 2021-10-04 11:05:48 -05:00
parent 175b8db73b
commit 32a5abc6fe
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2 changed files with 73 additions and 0 deletions
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1
compiler/rustc_lint_defs/src/builtin.rs
View file

@ -1960,6 +1960,7 @@ declare_lint! {
"detects proc macro derives using inaccessible names from parent modules",
@future_incompatible = FutureIncompatibleInfo {
reference: "issue #83583 <https://github.com/rust-lang/rust/issues/83583>",
reason: FutureIncompatibilityReason::FutureReleaseErrorReportNow,
};
}

72
src/test/ui/proc-macro/generate-mod.stderr
View file

@ -82,3 +82,75 @@ LL | #[derive(generate_mod::CheckDerive)]
error: aborting due to 4 previous errors; 4 warnings emitted
For more information about this error, try `rustc --explain E0412`.
Future incompatibility report: Future breakage diagnostic:
warning: cannot find type `FromOutside` in this scope
--> $DIR/generate-mod.rs:16:10
|
LL | #[derive(generate_mod::CheckDerive)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^ names from parent modules are not accessible without an explicit import
|
= note: `#[warn(proc_macro_derive_resolution_fallback)]` on by default
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
= note: this warning originates in the derive macro `generate_mod::CheckDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
Future breakage diagnostic:
warning: cannot find type `OuterDerive` in this scope
--> $DIR/generate-mod.rs:16:10
|
LL | #[derive(generate_mod::CheckDerive)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^ names from parent modules are not accessible without an explicit import
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
= note: this warning originates in the derive macro `generate_mod::CheckDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
Future breakage diagnostic:
warning: cannot find type `FromOutside` in this scope
--> $DIR/generate-mod.rs:23:14
|
LL | #[derive(generate_mod::CheckDerive)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^ names from parent modules are not accessible without an explicit import
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
= note: this warning originates in the derive macro `generate_mod::CheckDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
Future breakage diagnostic:
warning: cannot find type `OuterDerive` in this scope
--> $DIR/generate-mod.rs:23:14
|
LL | #[derive(generate_mod::CheckDerive)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^ names from parent modules are not accessible without an explicit import
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
= note: this warning originates in the derive macro `generate_mod::CheckDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
Future breakage diagnostic:
warning: cannot find type `FromOutside` in this scope
--> $DIR/generate-mod.rs:30:10
|
LL | #[derive(generate_mod::CheckDeriveLint)] // OK, lint is suppressed
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ names from parent modules are not accessible without an explicit import
|
note: the lint level is defined here
--> $DIR/generate-mod.rs:30:10
|
LL | #[derive(generate_mod::CheckDeriveLint)] // OK, lint is suppressed
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
= note: this warning originates in the derive macro `generate_mod::CheckDeriveLint` (in Nightly builds, run with -Z macro-backtrace for more info)
Future breakage diagnostic:
warning: cannot find type `OuterDeriveLint` in this scope
--> $DIR/generate-mod.rs:30:10
|
LL | #[derive(generate_mod::CheckDeriveLint)] // OK, lint is suppressed
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ names from parent modules are not accessible without an explicit import
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
= note: this warning originates in the derive macro `generate_mod::CheckDeriveLint` (in Nightly builds, run with -Z macro-backtrace for more info)