From b559cdd73f32c0d0cfc1feda39f82b3e3583df17 Mon Sep 17 00:00:00 2001
From: sjmann <sjmann91@gmail.com>
Date: Tue, 25 Feb 2020 09:48:50 +0000
Subject: [PATCH] added traits exercises

---
 exercises/traits/traits1.rs | 44 +++++++++++++++++++++++++++++++++++++
 exercises/traits/traits2.rs | 35 +++++++++++++++++++++++++++++
 info.toml                   | 22 +++++++++++++++++++
 3 files changed, 101 insertions(+)
 create mode 100644 exercises/traits/traits1.rs
 create mode 100644 exercises/traits/traits2.rs

diff --git a/exercises/traits/traits1.rs b/exercises/traits/traits1.rs
new file mode 100644
index 00000000..8253ef80
--- /dev/null
+++ b/exercises/traits/traits1.rs
@@ -0,0 +1,44 @@
+// traits1.rs
+// Time to implement some traits!
+// 
+// Your task is to implement the trait
+// `AppendBar' for the type `String'.
+// 
+// The trait AppendBar has only one function,
+// which appends "Bar" to any object
+// implementing this trait.
+
+// I AM NOT DONE
+trait AppendBar {
+    fn append_bar(self) -> Self;
+}
+
+impl AppendBar for String {
+    //Add your code here
+
+}
+
+fn main() {
+    let s = String::from("Foo");
+    let s = s.append_bar();
+    println!("s: {}", s);
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn is_FooBar() {
+        assert_eq!(String::from("Foo").append_bar(), String::from("FooBar"));
+    }
+
+    #[test]
+    fn is_BarBar() {
+        assert_eq!(
+            String::from("").append_bar().append_bar(),
+            String::from("BarBar")
+        );
+    }
+
+}
\ No newline at end of file
diff --git a/exercises/traits/traits2.rs b/exercises/traits/traits2.rs
new file mode 100644
index 00000000..84c35f7c
--- /dev/null
+++ b/exercises/traits/traits2.rs
@@ -0,0 +1,35 @@
+// traits2.rs
+// 
+// Your task is to implement the trait
+// `AppendBar' for a vector of strings.
+// 
+// To implement this trait, consider for
+// a moment what it means to 'append "Bar"'
+// to a vector of strings.
+// 
+// No boiler plate code this time,
+// you can do this! Hints at the bottom.
+
+// I AM NOT DONE
+
+trait AppendBar {
+    fn append_bar(self) -> Self;
+}
+
+//TODO: Add your code 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(), String::from("Bar"));
+        assert_eq!(foo.pop().unwrap(), String::from("Foo"));
+    }
+
+}
\ No newline at end of file
diff --git a/info.toml b/info.toml
index 2e6b0b41..178a6f42 100644
--- a/info.toml
+++ b/info.toml
@@ -586,6 +586,28 @@ multiply the values into a mutable variable. Or you might write code more
 functionally with recursion and a match clause. But you can also use ranges
 and iterators to solve this in rust."""
 
+# TRAITS
+
+[[exercises]]
+name = "traits1"
+path = "exercises/traits/traits1.rs"
+mode = "test"
+hint = """
+A discussion about Traits in Rust can be found at:
+https://doc.rust-lang.org/1.30.0/book/second-edition/ch10-02-traits.html
+"""
+
+[[exercises]]
+name = "traits2"
+path = "exercises/traits/traits2.rs"
+mode = "test"
+hint = """
+Notice how the trait takes ownership of 'self',and returns `Self'. 
+Try mutating the incoming string vector.
+
+Vectors provide suitable methods for adding an element at the end. See 
+the documentation at: https://doc.rust-lang.org/std/vec/struct.Vec.html"""
+
 # THREADS
 
 [[exercises]]