From 260dfafbd90edaa05a77431219d8a623b0667db6 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Sun, 12 Dec 2021 11:50:52 -0800
Subject: [PATCH] Move buffer type to associated type of IntegerPrivate

---
 src/lib.rs | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 5037aa2..9c665cc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -104,8 +104,9 @@ mod private {
     }
 }
 
-trait IntegerPrivate<B> {
-    fn write_to(self, buf: &mut B) -> &str;
+trait IntegerPrivate {
+    type Buffer;
+    fn write_to(self, buf: &mut Self::Buffer) -> &str;
 }
 
 const DEC_DIGITS_LUT: &[u8] = b"\
@@ -141,7 +142,9 @@ macro_rules! impl_Integer {
     ($($max_len:expr => $t:ident),* as $conv_fn:ident) => {$(
         impl_IntegerCommon!($max_len, $t);
 
-        impl IntegerPrivate<[MaybeUninit<u8>; $max_len]> for $t {
+        impl IntegerPrivate for $t {
+            type Buffer = [MaybeUninit<u8>; $max_len];
+
             #[allow(unused_comparisons)]
             #[inline]
             fn write_to(self, buf: &mut [MaybeUninit<u8>; $max_len]) -> &str {
@@ -240,7 +243,9 @@ macro_rules! impl_Integer128 {
     ($($max_len:expr => $t:ident),*) => {$(
         impl_IntegerCommon!($max_len, $t);
 
-        impl IntegerPrivate<[MaybeUninit<u8>; $max_len]> for $t {
+        impl IntegerPrivate for $t {
+            type Buffer = [MaybeUninit<u8>; $max_len];
+
             #[allow(unused_comparisons)]
             #[inline]
             fn write_to(self, buf: &mut [MaybeUninit<u8>; $max_len]) -> &str {