mirror of https://github.com/rust-lang/rust
77 lines
2.4 KiB
Plaintext
77 lines
2.4 KiB
Plaintext
error[E0384]: cannot assign twice to immutable variable `a`
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--> $DIR/mut-ref-mut-2021.rs:9:5
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LL | let Foo(a) = Foo(0);
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| - first assignment to `a`
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LL | a = 42;
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| ^^^^^^ cannot assign twice to immutable variable
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help: consider making this binding mutable
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LL | let Foo(mut a) = Foo(0);
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| ~~~~~
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help: to modify the original value, take a borrow instead
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LL | let Foo(ref mut a) = Foo(0);
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| ~~~~~~~~~
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error[E0384]: cannot assign twice to immutable variable `a`
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--> $DIR/mut-ref-mut-2021.rs:15:5
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LL | let Foo(ref a) = Foo(0);
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| ----- first assignment to `a`
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LL | a = &42;
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| ^^^^^^^ cannot assign twice to immutable variable
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error[E0384]: cannot assign twice to immutable variable `a`
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--> $DIR/mut-ref-mut-2021.rs:21:5
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LL | let Foo(ref mut a) = Foo(0);
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| --------- first assignment to `a`
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LL | a = &mut 42;
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| ^^^^^^^^^^^ cannot assign twice to immutable variable
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error[E0384]: cannot assign twice to immutable variable `a`
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--> $DIR/mut-ref-mut-2021.rs:27:5
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LL | let Foo(a) = &Foo(0);
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| - first assignment to `a`
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LL | a = &42;
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| ^^^^^^^ cannot assign twice to immutable variable
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error[E0384]: cannot assign twice to immutable variable `a`
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--> $DIR/mut-ref-mut-2021.rs:33:5
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LL | let Foo(ref a) = &Foo(0);
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| ----- first assignment to `a`
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LL | a = &42;
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| ^^^^^^^ cannot assign twice to immutable variable
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error[E0384]: cannot assign twice to immutable variable `a`
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--> $DIR/mut-ref-mut-2021.rs:39:5
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LL | let Foo(a) = &mut Foo(0);
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| - first assignment to `a`
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LL | a = &mut 42;
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| ^^^^^^^^^^^ cannot assign twice to immutable variable
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error[E0384]: cannot assign twice to immutable variable `a`
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--> $DIR/mut-ref-mut-2021.rs:45:5
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LL | let Foo(ref a) = &mut Foo(0);
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| ----- first assignment to `a`
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LL | a = &42;
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| ^^^^^^^ cannot assign twice to immutable variable
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error[E0384]: cannot assign twice to immutable variable `a`
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--> $DIR/mut-ref-mut-2021.rs:51:5
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LL | let Foo(ref mut a) = &mut Foo(0);
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| --------- first assignment to `a`
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LL | a = &mut 42;
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| ^^^^^^^^^^^ cannot assign twice to immutable variable
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error: aborting due to 8 previous errors
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For more information about this error, try `rustc --explain E0384`.
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