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Rollup merge of #119805 - chenyukang:yukang-fix-119530, r=davidtwco

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Suggest array::from_fn for array initialization

Fixes #119530
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León Orell Valerian Liehr 2024-01-23 21:19:52 +01:00 • committed by GitHub
commit dd538b5f05
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4
compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
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@ -3152,6 +3152,10 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
],
Applicability::MachineApplicable,
);
} else {
// FIXME: we may suggest array::repeat instead
err.help("consider using `core::array::from_fn` to initialize the array");
err.help("see https://doc.rust-lang.org/stable/std/array/fn.from_fn.html# for more information");
}
if self.tcx.sess.is_nightly_build()