mirror of https://github.com/rust-lang/rust
17 lines
365 B
Rust
17 lines
365 B
Rust
// issue-52240: Can turn immutable into mut with `ref mut`
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enum Foo {
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Bar(i32),
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}
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fn main() {
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let arr = vec!(Foo::Bar(0));
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if let (Some(Foo::Bar(ref mut val)), _) = (&arr.get(0), 0) {
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//~^ ERROR cannot borrow data in a `&` reference as mutable
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*val = 9001;
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}
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match arr[0] {
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Foo::Bar(ref s) => println!("{}", s)
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}
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}
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