convert macros into functions

src/packet/login.rs

@@ -1,7 +1,8 @@
 use chrono::{DateTime, Utc};
 
 use psopacket::{pso_packet, PSOPacketData};
-use crate::{PSOPacket, PacketParseError, PSOPacketData, utf8_to_utf16_array};
+use crate::{PSOPacket, PacketParseError, PSOPacketData};
+use crate::util::utf8_to_utf16_array;
 
 use crate::character::character::SelectScreenCharacter;
 
@@ -492,7 +493,7 @@ impl ShipList {
                 menu: ships.get(0).map(|s| s.menu).unwrap_or(0),
                 item: 0,
                 flags: 0,
-                name: utf8_to_utf16_array!("Ship", 0x11),
+                name: utf8_to_utf16_array("Ship"),
             },
             ships: ships,
         }

src/packet/ship.rs

@@ -1,6 +1,6 @@
 use psopacket::{pso_packet, PSOPacketData};
 use crate::{PSOPacket, PacketParseError, PSOPacketData};
-use crate::utf8_to_utf16_array;
+use crate::util::utf8_to_utf16_array;
 use crate::packet::messages::GameMessage;
 //use character::character::FullCharacter;
 use crate::character::character as character;
@@ -82,13 +82,13 @@ impl ShipBlockList {
                 menu: BLOCK_MENU_ID,
                 item: 0,
                 flags: 0,
-                name: utf8_to_utf16_array!(shipname, 0x11)
+                name: utf8_to_utf16_array(shipname)
             },
             blocks: (0..num_blocks).map(|i| BlockEntry {
                 menu: BLOCK_MENU_ID,
                 item: i as u32 + 1,
                 flags: 0,
-                name: utf8_to_utf16_array!(format!("Block {}", i+1), 0x11)
+                name: utf8_to_utf16_array(format!("Block {}", i+1))
             }).collect()
         }
     }

src/util.rs

@@ -16,31 +16,19 @@ pub fn array_to_utf16(array: &[u8]) -> String {
     }
 }
 
-
-// TODO: const fn version of this! (helpful with tests)
-#[macro_export]
-macro_rules! utf8_to_array {
-    ($s: expr, $size: expr) => {
-        {
-            let mut array = [0u8; $size];
-            let bytes = $s.as_bytes();
-            array[..bytes.len()].clone_from_slice(&bytes);
-            array
-        }
-    }
+pub fn utf8_to_array<const N: usize>(s: impl Into<String>) -> [u8; N] {
+    let mut array = [0u8; N];
+    let s = s.into();
+    let bytes = s.as_bytes();
+    array[..bytes.len()].clone_from_slice(&bytes);
+    array
 }
 
-#[macro_export]
-macro_rules! utf8_to_utf16_array {
-    ($s: expr, $size: expr) => {
-        {
-            let mut array = [0u16; $size];
-            //let bytes = $s.as_bytes();
-            let bytes = $s.encode_utf16().collect::<Vec<_>>();
-            array[..bytes.len()].clone_from_slice(&bytes);
-            array
-        }
-    }
+pub fn utf8_to_utf16_array<const N: usize>(s: impl Into<String>) -> [u16; N] {
+    let mut array = [0u16; N];
+    let bytes = s.into().encode_utf16().collect::<Vec<_>>();
+    array[..bytes.len()].clone_from_slice(&bytes);
+    array
 }
 
 pub fn vec_to_array<T: Default + Copy, const N: usize>(vec: Vec<T>) -> [T; N] {
@@ -53,10 +41,12 @@ pub fn vec_to_array<T: Default + Copy, const N: usize>(vec: Vec<T>) -> [T; N] {
 
 #[cfg(test)]
 mod test {
+    use super::*;
+
     #[test]
     fn test_utf8_to_array() {
         let s = "asdf".to_owned();
-        let a = utf8_to_array!(s, 8);
+        let a = utf8_to_array(s);
 
         let mut e = [0u8; 8];
         e[..4].clone_from_slice(b"asdf");
@@ -64,14 +54,14 @@ mod test {
     }
 
     #[test]
-    fn utf8_to_utf16_array() {
-        let utf16 = utf8_to_utf16_array!("asdf", 16);
+    fn test_utf8_to_utf16_array() {
+        let utf16 = utf8_to_utf16_array("asdf");
         assert!(utf16 == [97, 115, 100, 102, 0,0,0,0,0,0,0,0,0,0,0,0])
     }
 
     #[test]
-    fn utf8_to_utf16_array_unicode() {
-        let utf16 = utf8_to_utf16_array!("あいうえお", 16);
+    fn test_utf8_to_utf16_array_unicode() {
+        let utf16 = utf8_to_utf16_array("あいうえお");
         assert!(utf16 == [0x3042 , 0x3044, 0x3046, 0x3048, 0x304A, 0,0,0,0,0,0,0,0,0,0,0])
     }
 }