diff options
Diffstat (limited to 'src/doc/book/listings/ch19-advanced-features/listing-19-19')
4 files changed, 38 insertions, 0 deletions
diff --git a/src/doc/book/listings/ch19-advanced-features/listing-19-19/Cargo.lock b/src/doc/book/listings/ch19-advanced-features/listing-19-19/Cargo.lock new file mode 100644 index 000000000..b1977d01e --- /dev/null +++ b/src/doc/book/listings/ch19-advanced-features/listing-19-19/Cargo.lock @@ -0,0 +1,6 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +[[package]] +name = "traits-example" +version = "0.1.0" + diff --git a/src/doc/book/listings/ch19-advanced-features/listing-19-19/Cargo.toml b/src/doc/book/listings/ch19-advanced-features/listing-19-19/Cargo.toml new file mode 100644 index 000000000..52395a587 --- /dev/null +++ b/src/doc/book/listings/ch19-advanced-features/listing-19-19/Cargo.toml @@ -0,0 +1,6 @@ +[package] +name = "traits-example" +version = "0.1.0" +edition = "2021" + +[dependencies] diff --git a/src/doc/book/listings/ch19-advanced-features/listing-19-19/output.txt b/src/doc/book/listings/ch19-advanced-features/listing-19-19/output.txt new file mode 100644 index 000000000..087e802b1 --- /dev/null +++ b/src/doc/book/listings/ch19-advanced-features/listing-19-19/output.txt @@ -0,0 +1,5 @@ +$ cargo run + Compiling traits-example v0.1.0 (file:///projects/traits-example) + Finished dev [unoptimized + debuginfo] target(s) in 0.54s + Running `target/debug/traits-example` +A baby dog is called a Spot diff --git a/src/doc/book/listings/ch19-advanced-features/listing-19-19/src/main.rs b/src/doc/book/listings/ch19-advanced-features/listing-19-19/src/main.rs new file mode 100644 index 000000000..44affe0ee --- /dev/null +++ b/src/doc/book/listings/ch19-advanced-features/listing-19-19/src/main.rs @@ -0,0 +1,21 @@ +trait Animal { + fn baby_name() -> String; +} + +struct Dog; + +impl Dog { + fn baby_name() -> String { + String::from("Spot") + } +} + +impl Animal for Dog { + fn baby_name() -> String { + String::from("puppy") + } +} + +fn main() { + println!("A baby dog is called a {}", Dog::baby_name()); +} |