diff options
Diffstat (limited to 'src/doc/book/listings/ch06-enums-and-pattern-matching/no-listing-14-count-and-announce-if-let-else')
3 files changed, 37 insertions, 0 deletions
diff --git a/src/doc/book/listings/ch06-enums-and-pattern-matching/no-listing-14-count-and-announce-if-let-else/Cargo.lock b/src/doc/book/listings/ch06-enums-and-pattern-matching/no-listing-14-count-and-announce-if-let-else/Cargo.lock new file mode 100644 index 000000000..f62e8ac45 --- /dev/null +++ b/src/doc/book/listings/ch06-enums-and-pattern-matching/no-listing-14-count-and-announce-if-let-else/Cargo.lock @@ -0,0 +1,6 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +[[package]] +name = "enums" +version = "0.1.0" + diff --git a/src/doc/book/listings/ch06-enums-and-pattern-matching/no-listing-14-count-and-announce-if-let-else/Cargo.toml b/src/doc/book/listings/ch06-enums-and-pattern-matching/no-listing-14-count-and-announce-if-let-else/Cargo.toml new file mode 100644 index 000000000..e959295f9 --- /dev/null +++ b/src/doc/book/listings/ch06-enums-and-pattern-matching/no-listing-14-count-and-announce-if-let-else/Cargo.toml @@ -0,0 +1,6 @@ +[package] +name = "enums" +version = "0.1.0" +edition = "2021" + +[dependencies] diff --git a/src/doc/book/listings/ch06-enums-and-pattern-matching/no-listing-14-count-and-announce-if-let-else/src/main.rs b/src/doc/book/listings/ch06-enums-and-pattern-matching/no-listing-14-count-and-announce-if-let-else/src/main.rs new file mode 100644 index 000000000..ba7eda27b --- /dev/null +++ b/src/doc/book/listings/ch06-enums-and-pattern-matching/no-listing-14-count-and-announce-if-let-else/src/main.rs @@ -0,0 +1,25 @@ +#[derive(Debug)] +enum UsState { + Alabama, + Alaska, + // --snip-- +} + +enum Coin { + Penny, + Nickel, + Dime, + Quarter(UsState), +} + +fn main() { + let coin = Coin::Penny; + // ANCHOR: here + let mut count = 0; + if let Coin::Quarter(state) = coin { + println!("State quarter from {:?}!", state); + } else { + count += 1; + } + // ANCHOR_END: here +} |