Derived Debug on several little types that are handy to print out.

src/datastructures.rs

@@ -35,7 +35,7 @@ impl<'a, T: 'a> iter::Iterator for MultiDictIter<'a, T> {
 }
 
 /// This is used to deal with multiple values for the same key.
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct MultiDict<T> {
     map: HashMap<String, Vec<T>>,
 }

src/routing.rs

@@ -64,7 +64,7 @@ fn parse_rule(rule: &str) -> Vec<(Option<&str>, &str)> {
 }
 
 /// The matcher holds the url regex object.
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct Matcher {
     pub regex: Regex
 }
@@ -146,6 +146,7 @@ impl From<Regex> for Matcher {
 /// Request Slash error.
 /// This is for example the case if you request `/foo`
 /// although the correct URL is `/foo/`.
+#[derive(Debug)]
 pub struct RequestSlashError;
 
 
@@ -158,7 +159,7 @@ pub enum MapAdapterMatched {
 
 
 /// A Rule represents one URL pattern.
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct Rule {
     /// The matcher is used to match the url path.
     pub matcher: Matcher,
@@ -223,7 +224,7 @@ impl Rule {
 
 
 /// The map stores all the URL rules.
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct Map {
     rules: Vec<Rule>,
 }
@@ -250,6 +251,7 @@ impl Map {
 
 
 /// Does the URL matching and building based on runtime information.
+#[derive(Debug)]
 pub struct MapAdapter<'m> {
     map: &'m Map,
     url_scheme: String,

src/templating.rs

@@ -52,6 +52,7 @@ trait TemplateLoader {
 }
 
 /// A template loader that loads templates from the file system.
+#[derive(Debug)]
 pub struct FileSystemLoader {
     search_path: String,
 }