ac922245f0
The SCCs of the region graph are not a reliable heuristic to use for blaming an interesting constraint for diagnostics. For region errors, if the outlived region is `'static`, or the involved types are invariant in their lifetiems, there will be cycles in the constraint graph containing both the target region and the most interesting constraints to blame. To get better diagnostics in these cases, this commit removes that heuristic.
51 lines
2.0 KiB
Plaintext
51 lines
2.0 KiB
Plaintext
error[E0597]: `c` does not live long enough
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--> $DIR/adt-nullary-enums.rs:33:41
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LL | let c = 66;
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| - binding `c` declared here
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LL | / combine(
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LL | | SomeEnum::SomeVariant(Cell::new(&c)),
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| | ^^ borrowed value does not live long enough
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LL | | SomeEnum::SomeOtherVariant::<Cell<&'static u32>>,
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LL | | );
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| |_____- argument requires that `c` is borrowed for `'static`
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LL | }
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| - `c` dropped here while still borrowed
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error[E0597]: `c` does not live long enough
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--> $DIR/adt-nullary-enums.rs:41:41
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LL | fn annot_reference_named_lifetime<'a>(_d: &'a u32) {
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| -- lifetime `'a` defined here
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LL | let c = 66;
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| - binding `c` declared here
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LL | / combine(
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LL | | SomeEnum::SomeVariant(Cell::new(&c)),
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| | ^^ borrowed value does not live long enough
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LL | | SomeEnum::SomeOtherVariant::<Cell<&'a u32>>,
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LL | | );
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| |_____- argument requires that `c` is borrowed for `'a`
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LL | }
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| - `c` dropped here while still borrowed
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error[E0597]: `c` does not live long enough
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--> $DIR/adt-nullary-enums.rs:54:45
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LL | fn annot_reference_named_lifetime_in_closure<'a>(_: &'a u32) {
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| -- lifetime `'a` defined here
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LL | let _closure = || {
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LL | let c = 66;
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| - binding `c` declared here
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LL | / combine(
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LL | | SomeEnum::SomeVariant(Cell::new(&c)),
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| | ^^ borrowed value does not live long enough
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LL | | SomeEnum::SomeOtherVariant::<Cell<&'a u32>>,
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LL | | );
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| |_________- argument requires that `c` is borrowed for `'a`
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LL | };
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| - `c` dropped here while still borrowed
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error: aborting due to 3 previous errors
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For more information about this error, try `rustc --explain E0597`.
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