rust-ape-example/src/bin/flow_control_match_destructuring_destructure_structures.rs
2022-09-07 10:49:49 +05:30

31 lines
797 B
Rust

// ./src/flow_control/match/destructuring/destructure_structures.md
fn part0() {
struct Foo {
x: (u32, u32),
y: u32,
}
// Try changing the values in the struct to see what happens
let foo = Foo { x: (1, 2), y: 3 };
match foo {
Foo { x: (1, b), y } => println!("First of x is 1, b = {}, y = {} ", b, y),
// you can destructure structs and rename the variables,
// the order is not important
Foo { y: 2, x: i } => println!("y is 2, i = {:?}", i),
// and you can also ignore some variables:
Foo { y, .. } => println!("y = {}, we don't care about x", y),
// this will give an error: pattern does not mention field `x`
//Foo { y } => println!("y = {}", y),
}
}
pub fn main() {
part0();
}