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Add a note for unsatisfied ~const Drop bounds

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Deadbeef 2022-04-10 17:36:08 +10:00
parent e745b4ddbd
commit 7f54d68f26
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3 changed files with 33 additions and 17 deletions
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7
compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
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@ -439,6 +439,13 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
}
}
if Some(trait_ref.def_id()) == tcx.lang_items().drop_trait()
&& predicate_is_const
{
err.note("`~const Drop` was renamed to `~const Destruct`");
err.note("See <https://github.com/rust-lang/rust/pull/94901> for more details");
}
let explanation = if let ObligationCauseCode::MainFunctionType =
obligation.cause.code()
{