Create header name/value from String without reallocating

async-nats/src/header.rs

@@ -346,6 +346,12 @@ impl From<&str> for HeaderValue {
  }
 }
 
+impl From<String> for HeaderValue {
+ fn from(inner: String) -> Self {
+ Self { inner }
+ }
+}
+
 impl HeaderValue {
  pub fn new() -> Self {
  HeaderValue::default()
@@ -382,6 +388,14 @@ impl IntoHeaderName for &str {
  }
 }
 
+impl IntoHeaderName for String {
+ fn into_header_name(self) -> HeaderName {
+ HeaderName {
+ inner: HeaderRepr::Custom(self.into()),
+ }
+ }
+}
+
 impl IntoHeaderName for HeaderName {
  fn into_header_name(self) -> HeaderName {
  self
@@ -400,6 +414,12 @@ impl IntoHeaderValue for &str {
  }
 }
 
+impl IntoHeaderValue for String {
+ fn into_header_value(self) -> HeaderValue {
+ HeaderValue { inner: self }
+ }
+}
+
 impl IntoHeaderValue for HeaderValue {
  fn into_header_value(self) -> HeaderValue {
  self
@@ -650,7 +670,7 @@ impl std::error::Error for ParseHeaderNameError {}
 
 #[cfg(test)]
 mod tests {
- use super::{HeaderMap, HeaderName, HeaderValue};
+ use super::{HeaderMap, HeaderName, HeaderValue, IntoHeaderName, IntoHeaderValue};
  use std::str::{from_utf8, FromStr};
 
  #[test]
@@ -814,4 +834,30 @@ mod tests {
  header
  );
  }
+
+ #[test]
+ fn header_name_from_string() {
+ let string = "NATS-Stream".to_string();
+ let name = string.into_header_name();
+
+ assert_eq!("NATS-Stream", name.as_str());
+ }
+
+ #[test]
+ fn header_value_from_string_with_trait() {
+ let string = "some value".to_string();
+
+ let value = string.into_header_value();
+
+ assert_eq!("some value", value.as_str());
+ }
+
+ #[test]
+ fn header_value_from_string() {
+ let string = "some value".to_string();
+
+ let value: HeaderValue = string.into();
+
+ assert_eq!("some value", value.as_str());
+ }
 }