myest/
mod_trait.rs

1pub trait Summary{
2    fn summarize(&self) -> String{
3        format!("Read more from {}...", self.summairze_author())
4    }
5    fn summairze_author(&self) -> String;
6
7}
8
9pub struct NewsArticle{
10    pub headline: String,
11    pub location: String,
12    pub author: String,
13    pub content: String,
14}
15
16impl Summary for NewsArticle{
17    fn summairze_author(&self) -> String {
18        format!("@{}", self.author)
19    }
20}
21
22pub struct Tweet{
23    pub username: String,
24    pub content: String,
25    pub reply: bool,
26    pub retweet: bool,
27}
28
29impl Summary for Tweet{
30    fn summarize(&self) -> String {
31        format!("{}: {}", self.username, self.content)
32    }
33    fn summairze_author(&self) -> String {
34        format!("@{}", self.username)
35    }
36}
myest/mod_trait.rs

myest/
mod_trait.rs
