remove lifetime parameter on serializer

yaserde/src/lib.rs

@@ -23,7 +23,7 @@ pub trait YaDeserialize: Sized {
 }
 
 /// A **data structure** that can be serialized into any data format supported by YaSerDe.
-pub trait YaSerialize<'a>: Sized {
+pub trait YaSerialize: Sized {
   fn serialize<W: Write>(&self, writer: &mut ser::Serializer<W>) -> Result<(), String>;
 
   fn serialize_attributes(
@@ -95,7 +95,7 @@ pub trait Visitor<'de>: Sized {
 
 macro_rules! serialize_type {
   ($type:ty) => {
-    impl<'a> YaSerialize<'a> for $type {
+    impl YaSerialize for $type {
       fn serialize<W: Write>(&self, writer: &mut ser::Serializer<W>) -> Result<(), String> {
         let content = format!("{}", self);
         let event = XmlEvent::characters(&content);

yaserde/src/ser/mod.rs

@@ -7,24 +7,21 @@ use std::str;
 use xml::writer::XmlEvent;
 use xml::{EmitterConfig, EventWriter};
 
-pub fn to_string<'a, T: YaSerialize<'a>>(model: &T) -> Result<String, String> {
+pub fn to_string<T: YaSerialize>(model: &T) -> Result<String, String> {
   let buf = Cursor::new(Vec::new());
   let cursor = serialize_with_writer(model, buf, &Config::default())?;
   let data = str::from_utf8(cursor.get_ref()).expect("Found invalid UTF-8");
   Ok(String::from(data))
 }
 
-pub fn to_string_with_config<'a, T: YaSerialize<'a>>(
-  model: &T,
-  config: &Config,
-) -> Result<String, String> {
+pub fn to_string_with_config<T: YaSerialize>(model: &T, config: &Config) -> Result<String, String> {
   let buf = Cursor::new(Vec::new());
   let cursor = serialize_with_writer(model, buf, config)?;
   let data = str::from_utf8(cursor.get_ref()).expect("Found invalid UTF-8");
   Ok(String::from(data))
 }
 
-pub fn serialize_with_writer<'a, W: Write, T: YaSerialize<'a>>(
+pub fn serialize_with_writer<W: Write, T: YaSerialize>(
   model: &T,
   writer: W,
   _config: &Config,
@@ -36,14 +33,14 @@ pub fn serialize_with_writer<'a, W: Write, T: YaSerialize<'a>>(
   }
 }
 
-pub fn to_string_content<'a, T: YaSerialize<'a>>(model: &T) -> Result<String, String> {
+pub fn to_string_content<T: YaSerialize>(model: &T) -> Result<String, String> {
   let buf = Cursor::new(Vec::new());
   let cursor = serialize_with_writer_content(model, buf)?;
   let data = str::from_utf8(cursor.get_ref()).expect("Found invalid UTF-8");
   Ok(String::from(data))
 }
 
-pub fn serialize_with_writer_content<'a, W: Write, T: YaSerialize<'a>>(
+pub fn serialize_with_writer_content<W: Write, T: YaSerialize>(
   model: &T,
   writer: W,
 ) -> Result<W, String> {

yaserde/tests/serializer.rs

@@ -293,7 +293,7 @@ fn ser_custom() {
     value: i32,
   }
 
-  impl<'a> YaSerialize<'a> for Day {
+  impl YaSerialize for Day {
     fn serialize<W: Write>(&self, writer: &mut yaserde::ser::Serializer<W>) -> Result<(), String> {
       let _ret = writer.write(xml::writer::XmlEvent::start_element("DoubleDay"));
       let _ret = writer.write(xml::writer::XmlEvent::characters(

yaserde_derive/src/ser/implement_serializer.rs

@@ -16,7 +16,7 @@ pub fn implement_serializer(
   quote! {
     use xml::writer::XmlEvent;
 
-    impl<'a> YaSerialize<'a> for #name {
+    impl YaSerialize for #name {
       #[allow(unused_variables)]
       fn serialize<W: Write>(&self, writer: &mut yaserde::ser::Serializer<W>)
         -> Result<(), String> {