WIP

examples/full_circle.rs

@@ -2,7 +2,6 @@
 use std::str::FromStr;
 
 use chrono::*;
-use icalendar::parser;
 use icalendar::*;
 
 fn main() {

src/calendar.rs

@@ -1,5 +1,5 @@
 use chrono::Duration;
-use std::{fmt, iter::FromIterator, mem, ops::Deref};
+use std::{fmt, mem, ops::Deref};
 
 use crate::{components::*, Parameter, Property};
 
@@ -232,7 +232,7 @@ impl fmt::Display for Calendar {
 }
 
 impl TryInto<String> for &Calendar {
-    type Error = std::fmt::Error;
+    type Error = fmt::Error;
     fn try_into(self) -> Result<String, Self::Error> {
         let mut out_string = String::new();
         self.fmt_write(&mut out_string)?;
@@ -279,7 +279,7 @@ impl<C: Into<CalendarComponent>> FromIterator<C> for Calendar {
 }
 #[test]
 fn from_adds_default_properties() {
-    let todo = crate::Todo::default();
+    let todo = Todo::default();
     let cal = Calendar::from([todo]);
     assert!(cal.property_value("VERSION").is_some());
     assert!(cal.property_value("CALSCALE").is_some());

src/components.rs

@@ -129,7 +129,7 @@ pub trait Component {
     }
 
     /// Serializes this component into [`rfc5545`](http://tools.ietf.org/html/rfc5545) again
-    fn try_into_string(&self) -> Result<String, std::fmt::Error> {
+    fn try_into_string(&self) -> Result<String, fmt::Error> {
         let mut out_string = String::new();
         self.fmt_write(&mut out_string)?;
         Ok(out_string)
@@ -185,7 +185,7 @@ pub trait Component {
     ///
     /// Ranges from 0 to 10, larger values will be truncated
     fn priority(&mut self, priority: u32) -> &mut Self {
-        let priority = ::std::cmp::min(priority, 10);
+        let priority = std::cmp::min(priority, 10);
         self.add_property("PRIORITY", &priority.to_string())
     }
 

src/components/alarm.rs

@@ -282,7 +282,7 @@ fn test_email() {
 
 pub mod properties {
 
-    use crate::components::{alarm::properties::Parameter, date_time::parse_duration};
+    use crate::components::date_time::parse_duration;
 
     use super::*;
 
@@ -316,14 +316,13 @@ pub mod properties {
         }
     }
 
-    impl ToString for Action {
-        /// convert the ACTION into its serialized representation
-        fn to_string(&self) -> String {
+    impl fmt::Display for Action {
+        fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
             match self {
-                Action::Audio => "AUDIO".into(),
-                Action::Email => "EMAIL".into(),
-                Action::Display => "DISPLAY".into(),
-                Action::Other(other) => other.clone(),
+                Action::Audio => write!(f, "AUDIO"),
+                Action::Email => write!(f, "EMAIL"),
+                Action::Display => write!(f, "DISPLAY"),
+                Action::Other(other) => write!(f, "{}", other),
             }
         }
     }
@@ -411,7 +410,7 @@ pub mod properties {
     pub enum Trigger {
         /// Duration in relation to either Start or End of the event
         Duration(Duration, Option<Related>),
-        /// Absolute DateTime of the Trigger
+        /// Absolute `DateTime` of the Trigger
         DateTime(CalendarDateTime),
     }
 

src/components/todo.rs

@@ -1,6 +1,5 @@
 use chrono::*;
 
-use super::date_time::parse_utc_date_time;
 use super::*;
 
 /// VTODO  [(RFC 5545, Section 3.6.2 )](https://tools.ietf.org/html/rfc5545#section-3.6.2)

src/parser/components.rs

@@ -170,7 +170,7 @@ impl FromStr for CalendarComponent {
     type Err = String;
 
     fn from_str(s: &str) -> Result<Self, Self::Err> {
-        let from_parsed = crate::CalendarComponent::from(read_component(&unfold(s))?);
+        let from_parsed = CalendarComponent::from(read_component(&unfold(s))?);
         Ok(from_parsed)
     }
 }

src/parser/parsed_string.rs

@@ -53,9 +53,9 @@ impl From<String> for ParseString<'static> {
     }
 }
 
-impl ToString for ParseString<'_> {
-    fn to_string(&self) -> String {
-        self.to_owned().into()
+impl std::fmt::Display for ParseString<'_> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.0)
     }
 }
 

src/parser/properties.rs

@@ -119,7 +119,7 @@ impl FromStr for crate::Property {
     type Err = String;
 
     fn from_str(s: &str) -> Result<Self, Self::Err> {
-        Ok(crate::parser::Property::try_from(s)?.into())
+        Ok(Property::try_from(s)?.into())
     }
 }
 

src/properties.rs

@@ -156,7 +156,7 @@ impl Property {
 }
 
 impl TryInto<String> for Property {
-    type Error = std::fmt::Error;
+    type Error = fmt::Error;
 
     fn try_into(self) -> Result<String, Self::Error> {
         let mut out_string = String::new();

tests/try_into_string.rs

@@ -1,6 +1,5 @@
 use chrono::*;
 use icalendar::*;
-use std::convert::TryInto;
 
 #[test]
 fn try_into_string() -> Result<(), Box<dyn std::error::Error>> {