rust/src/test/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-no-bound.stderr

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note: external requirements
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--> $DIR/propagate-approximated-shorter-to-static-no-bound.rs:32:47
|
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LL | establish_relationships(&cell_a, &cell_b, |_outlives, x, y| {
| _______________________________________________^
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LL | |
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LL | |
LL | | // Only works if 'x: 'y:
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LL | | demand_y(x, y, x.get())
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LL | | });
| |_____^
|
= note: defining type: supply::{closure#0} with closure substs [
i16,
for<'r, 's, 't0, 't1, 't2> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { kind: BrNamed('r) }) std::cell::Cell<&'_#1r &ReLateBound(DebruijnIndex(0), BoundRegion { kind: BrNamed('s) }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { kind: BrNamed('t0) }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { kind: BrNamed('s) }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { kind: BrNamed('t1) }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { kind: BrNamed('t2) }) u32>)),
(),
]
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= note: late-bound region is '_#2r
= note: late-bound region is '_#3r
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= note: number of external vids: 4
= note: where '_#1r: '_#0r
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note: no external requirements
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--> $DIR/propagate-approximated-shorter-to-static-no-bound.rs:31:1
|
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LL | / fn supply<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) {
LL | | establish_relationships(&cell_a, &cell_b, |_outlives, x, y| {
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LL | |
LL | |
... |
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LL | | });
LL | | }
| |_^
|
= note: defining type: supply
error[E0521]: borrowed data escapes outside of function
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--> $DIR/propagate-approximated-shorter-to-static-no-bound.rs:32:5
|
LL | fn supply<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) {
| ------ `cell_a` is a reference that is only valid in the function body
LL | / establish_relationships(&cell_a, &cell_b, |_outlives, x, y| {
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LL | |
LL | |
LL | | // Only works if 'x: 'y:
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LL | | demand_y(x, y, x.get())
LL | | });
| |______^ `cell_a` escapes the function body here
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|
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= help: consider replacing `'a` with `'static`
error: aborting due to previous error