43 lines
1.4 KiB
Plaintext
43 lines
1.4 KiB
Plaintext
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error: unsatisfied lifetime constraints
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--> $DIR/closure-substs.rs:17:16
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LL | fn foo<'a>() {
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| -- lifetime `'a` defined here
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LL | |x: &'a i32| -> &'static i32 {
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LL | return x; //~ ERROR
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| ^ returning this value requires that `'a` must outlive `'static`
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error: borrowed data escapes outside of closure
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--> $DIR/closure-substs.rs:23:9
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LL | |x: &i32, b: fn(&'static i32)| {
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| - `x` is a reference that is only valid in the closure body
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LL | b(x); //~ ERROR
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| ^^^^ `x` escapes the closure body here
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error: borrowed data escapes outside of closure
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--> $DIR/closure-substs.rs:23:9
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LL | |x: &i32, b: fn(&'static i32)| {
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| - - `b` is declared here, outside of the closure body
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| `x` is a reference that is only valid in the closure body
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LL | b(x); //~ ERROR
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| ^^^^ `x` escapes the closure body here
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error: unsatisfied lifetime constraints
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--> $DIR/closure-substs.rs:23:9
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LL | |x: &i32, b: fn(&'static i32)| {
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| ------------------------------
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| | |
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| | let's call the lifetime of this reference `'1`
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| lifetime `'2` represents this closure's body
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LL | b(x); //~ ERROR
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| ^^^^ argument requires that `'1` must outlive `'2`
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= note: closure implements `Fn`, so references to captured variables can't escape the closure
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error: aborting due to 4 previous errors
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