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.
12 lines
267 B
Rust
12 lines
267 B
Rust
struct Ref<'a, T: 'a> {
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data: &'a T
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}
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fn foo<'a, 'b, 'c>(x: &'a mut Vec<Ref<'b, i32>>, y: Ref<'c, i32>) {
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let a: &mut Vec<Ref<i32>> = x;
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//~^ ERROR lifetime may not live long enough
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let b = Ref { data: y.data };
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Vec::push(a, b);
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}
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fn main() { }
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