finish traits

exercises/traits/traits1.rs

@@ -14,7 +14,9 @@ trait AppendBar {
 }
 
 impl AppendBar for String {
-    // TODO: Implement `AppendBar` for type `String`.
+    fn append_bar(self) -> Self {
+        self + "Bar"
+    }
 }
 
 fn main() {

exercises/traits/traits2.rs

@@ -13,7 +13,13 @@
 trait AppendBar {
     fn append_bar(self) -> Self;
 }
-
+impl AppendBar for Vec<String> {
+    fn append_bar(self) -> Self {
+        let mut _vec = self;
+        _vec.push(String::from("Bar"));
+        _vec
+    }
+}
 // TODO: Implement trait `AppendBar` for a vector of strings.
 
 #[cfg(test)]

exercises/traits/traits3.rs

@@ -11,7 +11,9 @@
 // I AM NOT DONE
 
 pub trait Licensed {
-    fn licensing_info(&self) -> String;
+    fn licensing_info(&self) -> String {
+        String::from("Some information")
+    }
 }
 
 struct SomeSoftware {

exercises/traits/traits4.rs

@@ -23,7 +23,7 @@ impl Licensed for SomeSoftware {}
 impl Licensed for OtherSoftware {}
 
 // YOU MAY ONLY CHANGE THE NEXT LINE
-fn compare_license_types(software: ??, software_two: ??) -> bool {
+fn compare_license_types(software: impl Licensed, software_two: impl Licensed) -> bool {
     software.licensing_info() == software_two.licensing_info()
 }
 

exercises/traits/traits5.rs

@@ -30,7 +30,10 @@ impl SomeTrait for OtherStruct {}
 impl OtherTrait for OtherStruct {}
 
 // YOU MAY ONLY CHANGE THE NEXT LINE
-fn some_func(item: ??) -> bool {
+fn some_func<T>(item: T) -> bool
+where
+    T: SomeTrait + OtherTrait,
+{
     item.some_function() && item.other_function()
 }