From 4dfc11d74ab02ac5765ae5d08fb750c91f4744b4 Mon Sep 17 00:00:00 2001 From: Hunter Kvalevog Date: Fri, 2 Oct 2026 21:53:51 -0500 Subject: rustlings: move to rust/ --- rust/rustlings/solutions/15_traits/traits2.rs | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 rust/rustlings/solutions/15_traits/traits2.rs (limited to 'rust/rustlings/solutions/15_traits/traits2.rs') diff --git a/rust/rustlings/solutions/15_traits/traits2.rs b/rust/rustlings/solutions/15_traits/traits2.rs new file mode 100644 index 0000000..0db93e0 --- /dev/null +++ b/rust/rustlings/solutions/15_traits/traits2.rs @@ -0,0 +1,27 @@ +trait AppendBar { + fn append_bar(self) -> Self; +} + +impl AppendBar for Vec { + fn append_bar(mut self) -> Self { + // ^^^ this is important + self.push(String::from("Bar")); + self + } +} + +fn main() { + // You can optionally experiment here. +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn is_vec_pop_eq_bar() { + let mut foo = vec![String::from("Foo")].append_bar(); + assert_eq!(foo.pop().unwrap(), "Bar"); + assert_eq!(foo.pop().unwrap(), "Foo"); + } +} -- cgit v1.2.3