Ref Keyword in Rust
The ref
keyword in Rust bind a variable by reference during pattern matching.
Unlike &
, which expect the pattern itself to be a reference, ref
only bind the value to a reference.
ref
on the left side of =
is the same as &
on the right.
let ref x = 1;
let x = &1;
&
on the left side of =
is the same as *
on the right.
let &y = x;
let y = *x;