47 lines
1.4 KiB
Plaintext
47 lines
1.4 KiB
Plaintext
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error[E0308]: mismatched types
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--> $DIR/issue-100605.rs:4:18
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LL | takes_option(&None);
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| ------------ ^^^^^ expected enum `Option`, found `&Option<_>`
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| arguments to this function are incorrect
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= note: expected enum `Option<&String>`
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found reference `&Option<_>`
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note: function defined here
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--> $DIR/issue-100605.rs:1:4
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LL | fn takes_option(_arg: Option<&String>) {}
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| ^^^^^^^^^^^^ ---------------------
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help: you can convert from `&Option<T>` to `Option<&T>` using `.as_ref()`
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LL | takes_option(None.as_ref());
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| ~~~~~~~~~~~~~
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help: consider removing the borrow
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LL - takes_option(&None);
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LL + takes_option(None);
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error[E0308]: mismatched types
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--> $DIR/issue-100605.rs:8:18
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LL | takes_option(&res);
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| ------------ ^^^^
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| | |
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| | expected enum `Option`, found `&Option<String>`
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| | help: you can convert from `&Option<T>` to `Option<&T>` using `.as_ref()`: `res.as_ref()`
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| arguments to this function are incorrect
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= note: expected enum `Option<&String>`
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found reference `&Option<String>`
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note: function defined here
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--> $DIR/issue-100605.rs:1:4
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LL | fn takes_option(_arg: Option<&String>) {}
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| ^^^^^^^^^^^^ ---------------------
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0308`.
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