suggestions

src/lib.rs

@@ -21,14 +21,14 @@ pub enum CompressionType {
 }
 
 impl CompressionType {
-    pub fn decompress(self: CompressionType, bytes: Vec<u8>) -> Vec<u8> {
+    pub fn decompress(self: CompressionType, bytes: &[u8]) -> Box<[u8]> {
         match self {
             CompressionType::Yay0 => decompress_yay0(bytes),
             _ => panic!("Unsupported compression type: {:?}", self),
         }
     }
 
-    pub fn compress(self: CompressionType, bytes: Vec<u8>) -> Vec<u8> {
+    pub fn compress(self: CompressionType, bytes: &[u8]) -> Box<[u8]> {
         match self {
             CompressionType::Yay0 => compress_yay0(bytes),
             _ => panic!("Unsupported compression type: {:?}", self),

src/main.rs

@@ -29,7 +29,7 @@ fn main() {
     let file_magic: &[u8] = &file_bytes[0..4];
 
     let out_bytes = match file_magic {
-        b"Yay0" => crunch64::CompressionType::Yay0.decompress(file_bytes),
+        b"Yay0" => crunch64::CompressionType::Yay0.decompress(file_bytes.as_slice()),
         _ => {
             panic!("File format not recognized - magic: {:?}", file_magic)
         }

src/yay0.rs

@@ -1,4 +1,4 @@
-pub fn decompress_yay0(bytes: Vec<u8>) -> Vec<u8> {
+pub fn decompress_yay0(bytes: &[u8]) -> Box<[u8]> {
     let decompressed_size = u32::from_be_bytes(bytes[4..8].try_into().unwrap());
     let link_table_offset = u32::from_be_bytes(bytes[8..12].try_into().unwrap());
     let chunk_offset = u32::from_be_bytes(bytes[12..16].try_into().unwrap());
@@ -56,9 +56,9 @@ pub fn decompress_yay0(bytes: Vec<u8>) -> Vec<u8> {
         mask_bit_counter -= 1;
     }
 
-    ret
+    ret.into_boxed_slice()
 }
 
-pub fn compress_yay0(_bytes: Vec<u8>) -> Vec<u8> {
+pub fn compress_yay0(_bytes: &[u8]) -> Box<[u8]> {
     panic!("Not implemented")
 }