update signature of PathBuf::parse (#77)

* update signature of PathBuf::parse

CHANGELOG.md

@@ -16,7 +16,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
--   Bumps minimum Rust version to 1.79
+-   Changed signature of `PathBuf::parse` to avoid requiring allocation.
+-   Bumps minimum Rust version to 1.79.
 
 ## [0.6.2] 2024-09-30
 

src/pointer.rs

@@ -877,8 +877,10 @@ impl PointerBuf {
     ///
     /// ## Errors
     /// Returns a [`ParseError`] if the string is not a valid JSON Pointer.
-    pub fn parse<S: AsRef<str> + ?Sized>(s: &S) -> Result<Self, ParseError> {
-        Pointer::parse(&s).map(Pointer::to_buf)
+    pub fn parse(s: impl Into<String>) -> Result<Self, ParseError> {
+        let s = s.into();
+        validate(&s)?;
+        Ok(Self(s))
     }
 
     /// Creates a new `PointerBuf` from a slice of non-encoded strings.