Rust uses patterns in `match` expressions to destructure tuples, structs, and enums, binding selected inner values. This treatment demonstrates destructuring through pattern matching, not standalone assignment syntax. section 3.1.1
fn destructure_tuple(tuple: &(i32, i32, i32)) {
match tuple {
(first, ..) => {
println!("First tuple element is {first}") #1
}
}
match tuple {
(.., last) => {
println!("Last tuple element is {last}") #2
}
}
match tuple {
(_, middle, _) => {
println!(
"The middle tuple element is {middle}" #3
)
}
}
match tuple {
(first, middle, last) => {
println!("The whole tuple is ({first}, {middle}, {last})") #4
}
}
}
Tuple patterns can bind one element with `..`, select a middle element, or bind every element. section 3.1.1
Struct patterns can select fields while matching a particular field value; enum patterns bind the value inside each variant. These patterns make inner data available to the matching branch. section 3.1.1
