region error messages involving impls are confusing #53124
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region error messages involving impls are confusing Part of rust-lang#52742. r? @nikomatsakis
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region error messages involving impls are confusing Part of #52742. r? @nikomatsakis
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💔 Test failed - status-appveyor |
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---- [ui] ui\nll\issue-52742.rs stdout ----
diff of stderr:
- error: unsatisfied lifetime constraints
- --> $DIR/issue-52742.rs:25:9
+ error[E0106]: missing lifetime specifiers
+ --> $DIR/issue-52742.rs:23:10
3 |
- LL | fn take_bar(&mut self, b: Bar<'_>) {
- | --------- -- let's call this `'1`
- | |
- | has type `&mut Foo<'_, '2>`
- LL | self.y = b.z
- | ^^^^^^^^^^^^ requires that `'1` must outlive `'2`
+ LL | impl Foo<'_, '_> {
+ | ^^ expected 2 lifetime parameters
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11 error: aborting due to previous error
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+ For more information about this error, try `rustc --explain E0106`.
13 |
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| // except according to those terms. | ||
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| #![feature(nll)] | ||
| #![feature(in_band_lifetimes)] |
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the problem here is that we now need another feature gate here
#![feature(impl_header_lifetime_elision)]
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region error messages involving impls are confusing Part of #52742. r? @nikomatsakis
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☀️ Test successful - status-appveyor, status-travis |
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Part of #52742.
r? @nikomatsakis