mirror of https://github.com/rust-lang/rust
44 lines
1.5 KiB
Plaintext
44 lines
1.5 KiB
Plaintext
error[E0594]: cannot assign to `n`, as it is not declared as mutable
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--> $DIR/unboxed-closures-mutate-upvar.rs:15:9
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LL | let n = 0;
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| - help: consider changing this to be mutable: `mut n`
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LL | let mut f = to_fn_mut(|| {
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LL | n += 1;
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| ^^^^^^ cannot assign
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error[E0594]: cannot assign to `n`, as it is not declared as mutable
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--> $DIR/unboxed-closures-mutate-upvar.rs:32:9
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LL | let n = 0;
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| - help: consider changing this to be mutable: `mut n`
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...
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LL | n += 1;
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| ^^^^^^ cannot assign
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error[E0594]: cannot assign to `n`, as it is not declared as mutable
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--> $DIR/unboxed-closures-mutate-upvar.rs:46:9
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LL | let n = 0;
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| - help: consider changing this to be mutable: `mut n`
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LL | let mut f = to_fn(move || {
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LL | n += 1;
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| ^^^^^^ cannot assign
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error[E0594]: cannot assign to `n`, as it is a captured variable in a `Fn` closure
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--> $DIR/unboxed-closures-mutate-upvar.rs:53:9
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LL | fn to_fn<A:std::marker::Tuple,F:Fn<A>>(f: F) -> F { f }
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| - change this to accept `FnMut` instead of `Fn`
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...
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LL | let mut f = to_fn(move || {
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| ----- ------- in this closure
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| |
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| expects `Fn` instead of `FnMut`
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LL | n += 1;
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| ^^^^^^ cannot assign
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error: aborting due to 4 previous errors
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For more information about this error, try `rustc --explain E0594`.
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