Address some clippy warnings

Author: imp

src/lib.rs

@@ -191,7 +191,7 @@ impl JsonValue {
 
     /// Pretty prints out the value as JSON string. Takes an argument that's
     /// number of spaces to indent new blocks with.
-    pub fn pretty<'a>(&self, spaces: u16) -> String {
+    pub fn pretty(&self, spaces: u16) -> String {
         let mut gen = Generator::new(false, spaces);
         gen.write_json(self);
         gen.consume()
@@ -211,7 +211,7 @@ pub fn stringify<T>(root: T) -> String where T: Into<JsonValue> {
 
 /// Pretty prints out the value as JSON string. Second argument is a
 /// number of spaces to indent new blocks with.
-pub fn stringify_pretty<'a, T>(root: T, spaces: u16) -> String where T: Into<JsonValue> {
+pub fn stringify_pretty<T>(root: T, spaces: u16) -> String where T: Into<JsonValue> {
     let root: JsonValue = root.into();
     root.pretty(spaces)
 }

src/parser.rs

@@ -77,7 +77,7 @@ impl<'a> Tokenizer<'a> {
             }
         }
 
-        return label;
+        label
     }
 
     fn read_codepoint(&mut self) -> JsonResult<char> {
@@ -95,7 +95,7 @@ impl<'a> Tokenizer<'a> {
         let mut escape = false;
 
         while let Some(ch) = self.source.next() {
-            if ch == first && escape == false {
+            if ch == first && !escape {
                 return Ok(value);
             }
 
@@ -181,7 +181,7 @@ impl<'a> Iterator for Tokenizer<'a> {
                 }
             });
         }
-        return None;
+        None
     }
 }
 

src/value.rs

@@ -148,7 +148,7 @@ impl JsonValue {
             _ => {
                 *self = JsonValue::new_object();
                 self.put(key, JsonValue::Null).unwrap();
-                return self.get_mut(key).unwrap();
+                self.get_mut(key).unwrap()
             }
         }
     }
@@ -275,7 +275,7 @@ impl JsonValue {
 impl Index<usize> for JsonValue {
     type Output = JsonValue;
 
-    fn index<'a>(&'a self, index: usize) -> &'a JsonValue {
+    fn index(&self, index: usize) -> &JsonValue {
         self.at(index).unwrap_or(&NULL)
     }
 }