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Improve an error message.

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This commit is contained in:
teymour-aldridge 2021-04-18 20:38:23 +01:00
parent d7c3386414
commit 567de4a202
3 changed files with 12 additions and 8 deletions
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12
compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
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@ -503,14 +503,14 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
let unit_obligation =
obligation.with(predicate.without_const().to_predicate(tcx));
if self.predicate_may_hold(&unit_obligation) {
err.note("this trait is implemented for `()`.");
err.note(
"the trait is implemented for `()`. \
Possibly this error has been caused by changes to \
Rust's type-inference algorithm (see issue #48950 \
<https://github.com/rust-lang/rust/issues/48950> \
for more information). Consider whether you meant to use \
the type `()` here instead.",
"this error might have been caused by changes to \
Rust's type-inference algorithm (see issue #48950 \
<https://github.com/rust-lang/rust/issues/48950> \
for more information).",
);
err.help("did you intend to use the type `()` here instead?");
}
}