Fixed issues from clippy

Author: arkada38

README.md

@@ -9,7 +9,7 @@
 ## Template List
 
 Template name           |    Type    | Status | Links                                                                 |
-:-----------------------|:----------:|-------:|:----------------------------------------------------------------------|
+:-----------------------|:----------:|:------:|:----------------------------------------------------------------------|
 Abstract Factory        | Creational |   ✅   | [Wiki](https://en.wikipedia.org/wiki/Abstract_factory_pattern)        |
 Adapter                 | Structural |   ✅   | [Wiki](https://en.wikipedia.org/wiki/Adapter_pattern)                 |
 Bridge                  | Structural |   ✅   | [Wiki](https://en.wikipedia.org/wiki/Bridge_pattern)                  |

src/behavioral/chain_of_responsibility/car/garage.rs

@@ -22,3 +22,9 @@ impl Garage {
         }
     }
 }
+
+impl Default for Garage {
+    fn default() -> Self {
+        Self::new()
+    }
+}

src/behavioral/chain_of_responsibility/police_department.rs

@@ -31,9 +31,9 @@ impl Policeman for Detective {
                 self.name
             );
 
-            match &self.next {
-                &Some(ref next) => next.investigate(crime),
-                &None => println!("Detective {}: Unimpossible for our department", self.name),
+            match self.next {
+                Some(ref next) => next.investigate(crime),
+                None => println!("Detective {}: Unimpossible for our department", self.name),
             }
         } else {
             println!("Detective {}: I can do this.", self.name);
@@ -69,9 +69,9 @@ impl Policeman for Patrolman {
                 self.name
             );
 
-            match &self.next {
-                &Some(ref next) => next.investigate(crime),
-                &None => println!("Patrolman {}: Unimpossible for our department.", self.name),
+            match self.next {
+                Some(ref next) => next.investigate(crime),
+                None => println!("Patrolman {}: Unimpossible for our department.", self.name),
             }
         } else {
             println!("Patrolman {}: It's easy. I can do this.", self.name);

src/creational/abstract_factory/launch/mod.rs

@@ -50,6 +50,12 @@ impl CheapLaunch {
     }
 }
 
+impl Default for CheapLaunch {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Launch<CheapCourse, CheapDrink> for CheapLaunch {
     fn get_main_course(&self) -> CheapCourse {
         self.main_course
@@ -74,6 +80,12 @@ impl BusinessLaunch {
     }
 }
 
+impl Default for BusinessLaunch {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Launch<BusinessCourse, BusinessDrink> for BusinessLaunch {
     fn get_main_course(&self) -> BusinessCourse {
         self.main_course

src/creational/builder/config.rs

@@ -54,6 +54,12 @@ impl ConfigBuilder {
     }
 }
 
+impl Default for ConfigBuilder {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl fmt::Display for Config {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(

src/creational/builder/report.rs

@@ -36,6 +36,12 @@ impl HtmlReportBuilder {
     }
 }
 
+impl Default for HtmlReportBuilder {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl ReportBuilder<HtmlReportBuilder> for HtmlReportBuilder {
     fn with_header<S: Into<String> + Display>(mut self, header: S) -> HtmlReportBuilder {
         self.content.push_str(&format!("<h1>{}</h1>\n", header));
@@ -72,6 +78,12 @@ impl MarkdownReportBuilder {
     }
 }
 
+impl Default for MarkdownReportBuilder {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl ReportBuilder<MarkdownReportBuilder> for MarkdownReportBuilder {
     fn with_header<S: Into<String> + Display>(mut self, header: S) -> MarkdownReportBuilder {
         self.content.push_str(&format!("# {}\n\n", header));

src/creational/factory_method/report/html.rs

@@ -15,6 +15,12 @@ impl HtmlReport {
     }
 }
 
+impl Default for HtmlReport {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Report for HtmlReport {
     fn set_header<S: Into<String>>(&mut self, header: S) {
         self.header = header.into();

src/creational/factory_method/report/markdown.rs

@@ -15,6 +15,12 @@ impl MarkdownReport {
     }
 }
 
+impl Default for MarkdownReport {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Report for MarkdownReport {
     fn set_header<S: Into<String>>(&mut self, header: S) {
         self.header = header.into();

src/structural/adapter/chief.rs

@@ -16,6 +16,12 @@ impl ChiefAdapter {
     }
 }
 
+impl Default for ChiefAdapter {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Chief for ChiefAdapter {
     fn get_cost(&self) -> u32 {
         self.confectioner.get_cost_for_dinner()
@@ -49,3 +55,9 @@ impl Confectioner {
         println!("Thanks for ${}", money);
     }
 }
+
+impl Default for Confectioner {
+    fn default() -> Self {
+        Self::new()
+    }
+}

src/structural/composite/roman_army/mod.rs

@@ -4,7 +4,7 @@ pub trait ComponentUnit {
     fn get_strength(&self) -> i32;
     fn add_unit(&mut self, unit: Box<dyn ComponentUnit>);
     fn get_units(&self) -> &Vec<Box<dyn ComponentUnit>>;
-    fn get_unit(&self, index: usize) -> &Box<dyn ComponentUnit>;
+    fn get_unit(&self, index: usize) -> &dyn ComponentUnit;
     fn remove(&mut self, index: usize);
 }
 
@@ -18,6 +18,12 @@ impl CompositeUnit {
     }
 }
 
+impl Default for CompositeUnit {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl ComponentUnit for CompositeUnit {
     fn get_strength(&self) -> i32 {
         let mut res = 0;
@@ -37,8 +43,8 @@ impl ComponentUnit for CompositeUnit {
         &self.units
     }
 
-    fn get_unit(&self, index: usize) -> &Box<dyn ComponentUnit> {
-        &self.units[index]
+    fn get_unit(&self, index: usize) -> &dyn ComponentUnit {
+        &*self.units[index]
     }
 
     fn remove(&mut self, index: usize) {