mirror of https://github.com/rust-lang/rust
28 lines
1.1 KiB
Plaintext
28 lines
1.1 KiB
Plaintext
error[E0382]: use of moved value: `foo`
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--> $DIR/as-ref-2.rs:10:14
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LL | let foo = Some(Struct);
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| --- move occurs because `foo` has type `Option<Struct>`, which does not implement the `Copy` trait
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LL | let _x: Option<Struct> = foo.map(|s| bar(&s));
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| --- ---------------- `foo` moved due to this method call
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| |
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| help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents
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LL | let _y = foo;
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| ^^^ value used here after move
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note: `Option::<T>::map` takes ownership of the receiver `self`, which moves `foo`
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--> $SRC_DIR/core/src/option.rs:LL:COL
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help: you could `clone` the value and consume it, if the `Struct: Clone` trait bound could be satisfied
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LL | let _x: Option<Struct> = foo.clone().map(|s| bar(&s));
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| ++++++++
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help: consider annotating `Struct` with `#[derive(Clone)]`
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LL + #[derive(Clone)]
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LL | struct Struct;
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0382`.
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