fix: Replaced the use of Rc with type alias

If in the future there will be a need for multithreaded code,
it will be trivial to replace the type alias instead of replacing
all mentions of Rc with Arc

src/parser/pff2.rs

@@ -13,7 +13,7 @@
 //! ```
 
 use core::fmt::Debug;
-use std::{marker::PhantomData, rc::Rc, string::FromUtf8Error};
+use std::{marker::PhantomData, string::FromUtf8Error};
 
 use nom::{InputLength, ToUsize};
 use thiserror::Error;
@@ -209,7 +209,7 @@ impl Parser {
 
     /// Takes the glyph lookup section and combines it with the content of the data section to get the complete glyph
     /// data. [`CharIndex`] offsets are file-global (absolute), so `input` should be the entirety of the file.
-    fn parse_data_section(indexes: Vec<CharIndex>, input: &[u8]) -> Rc<[Glyph]> {
+    fn parse_data_section(indexes: Vec<CharIndex>, input: &[u8]) -> OwnedSlice<[Glyph]> {
         let mut glyphs = Vec::with_capacity(indexes.len());
 
         for index in indexes {

src/render/pff2.rs

@@ -66,10 +66,8 @@ impl Bitmap {
         (width * height + 7) / 8
     }
 
-    /// Constructs self by wrapping the bitmap slice in a [`Rc`] and verifying that it's length is exactly
+    /// Constructs self by wrapping the bitmap slice in a [`OwnedSlice`] and verifying that it's length is exactly
     /// [`Self::byte_count_from_size`].
-    ///
-    /// [`Rc`]: std::rc::Rc
     pub fn new(width: usize, height: usize, bitmap: &[u8]) -> Option<Self> {
         if bitmap.len() != Self::byte_count_from_size(width, height) {
             return None;