mirror of https://github.com/rust-lang/rust
73 lines
1.8 KiB
Plaintext
73 lines
1.8 KiB
Plaintext
error[E0308]: mismatched types
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--> $DIR/deref-multi.rs:2:5
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LL | fn a(x: &&i32) -> i32 {
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| --- expected `i32` because of return type
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LL | x
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| ^ expected `i32`, found `&&i32`
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help: consider dereferencing the borrow
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LL | **x
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| ++
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error[E0308]: mismatched types
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--> $DIR/deref-multi.rs:7:5
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LL | fn a2(x: &&&&&i32) -> i32 {
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| --- expected `i32` because of return type
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LL | x
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| ^ expected `i32`, found `&&&&&i32`
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help: consider dereferencing the borrow
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LL | *****x
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| +++++
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error[E0308]: mismatched types
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--> $DIR/deref-multi.rs:12:5
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LL | fn b(x: &i32) -> i32 {
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| --- expected `i32` because of return type
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LL | &x
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| ^^ expected `i32`, found `&&i32`
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help: consider removing the `&` and dereferencing the borrow instead
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LL | *x
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| ~
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error[E0308]: mismatched types
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--> $DIR/deref-multi.rs:17:5
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LL | fn c(x: Box<i32>) -> i32 {
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| --- expected `i32` because of return type
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LL | &x
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| ^^ expected `i32`, found `&Box<i32>`
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= note: expected type `i32`
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found reference `&Box<i32>`
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help: consider removing the `&` and dereferencing the borrow instead
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LL | *x
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| ~
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error[E0308]: mismatched types
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--> $DIR/deref-multi.rs:22:5
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LL | fn d(x: std::sync::Mutex<&i32>) -> i32 {
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| --- expected `i32` because of return type
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LL | x.lock().unwrap()
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| ^^^^^^^^^^^^^^^^^ expected `i32`, found `MutexGuard<'_, &i32>`
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= note: expected type `i32`
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found struct `MutexGuard<'_, &i32>`
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help: consider dereferencing the type
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LL | **x.lock().unwrap()
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| ++
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error: aborting due to 5 previous errors
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For more information about this error, try `rustc --explain E0308`.
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