rust/src/test/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-comparing-against-free.stderr

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note: No external requirements
--> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:31:15
|
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LL | foo(cell, |cell_a, cell_x| {
| _______________^
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LL | | cell_a.set(cell_x.get()); // forces 'x: 'a, error in closure
LL | | //~^ ERROR
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LL | | })
| |_____^
|
= note: defining type: DefId(0/1:12 ~ propagate_approximated_shorter_to_static_comparing_against_free[317d]::case1[0]::{{closure}}[0]) with closure substs [
i32,
for<'r> extern "rust-call" fn((std::cell::Cell<&'_#1r u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) u32>))
]
error[E0521]: borrowed data escapes outside of closure
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--> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:32:9
|
LL | foo(cell, |cell_a, cell_x| {
| ------ ------ `cell_x` is a reference that is only valid in the closure body
| |
| `cell_a` is declared here, outside of the closure body
LL | cell_a.set(cell_x.get()); // forces 'x: 'a, error in closure
| ^^^^^^^^^^^^^^^^^^^^^^^^ `cell_x` escapes the closure body here
note: No external requirements
--> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:28:1
|
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LL | / fn case1() {
LL | | let a = 0;
LL | | let cell = Cell::new(&a);
LL | | foo(cell, |cell_a, cell_x| {
... |
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LL | | })
LL | | }
| |_^
|
= note: defining type: DefId(0/0:5 ~ propagate_approximated_shorter_to_static_comparing_against_free[317d]::case1[0]) with substs []
note: External requirements
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--> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:45:15
|
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LL | foo(cell, |cell_a, cell_x| {
| _______________^
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LL | | cell_x.set(cell_a.get()); // forces 'a: 'x, implies 'a = 'static -> borrow error
LL | | })
| |_____^
|
= note: defining type: DefId(0/1:13 ~ propagate_approximated_shorter_to_static_comparing_against_free[317d]::case2[0]::{{closure}}[0]) with closure substs [
i32,
for<'r> extern "rust-call" fn((std::cell::Cell<&'_#1r u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) u32>))
]
= note: number of external vids: 2
= note: where '_#1r: '_#0r
note: No external requirements
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--> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:38:1
|
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LL | / fn case2() {
LL | | let a = 0;
LL | | let cell = Cell::new(&a);
LL | | //~^ ERROR `a` does not live long enough
... |
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LL | | })
LL | | }
| |_^
|
= note: defining type: DefId(0/0:6 ~ propagate_approximated_shorter_to_static_comparing_against_free[317d]::case2[0]) with substs []
error[E0597]: `a` does not live long enough
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--> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:40:26
|
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LL | let cell = Cell::new(&a);
| ^^ borrowed value does not live long enough
...
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LL | }
| - `a` dropped here while still borrowed
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|
= note: borrowed value must be valid for the static lifetime...
error: aborting due to 2 previous errors
Some errors occurred: E0521, E0597.
For more information about an error, try `rustc --explain E0521`.