From 34d47f9e0cf66904432a3c774707b4773273ef4f Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Wed, 4 Mar 2026 08:25:05 +0800
Subject: *: gofumpt

---
 internal/adler32/adler32_amd64.go | 4 +---
 internal/bufpool/buffers.go       | 2 +-
 internal/zlib/writer.go           | 4 ++--
 3 files changed, 4 insertions(+), 6 deletions(-)

(limited to 'internal')

diff --git a/internal/adler32/adler32_amd64.go b/internal/adler32/adler32_amd64.go
index a2c283b7..cb67f21c 100644
--- a/internal/adler32/adler32_amd64.go
+++ b/internal/adler32/adler32_amd64.go
@@ -14,9 +14,7 @@ import (
 // Size of an Adler-32 checksum in bytes.
 const Size = 4
 
-var (
-	hasAVX2 = cpu.X86.HasAVX2
-)
+var hasAVX2 = cpu.X86.HasAVX2
 
 // digest represents the partial evaluation of a checksum.
 // The low 16 bits are s1, the high 16 bits are s2.
diff --git a/internal/bufpool/buffers.go b/internal/bufpool/buffers.go
index cb86b17e..a5c27b67 100644
--- a/internal/bufpool/buffers.go
+++ b/internal/bufpool/buffers.go
@@ -179,7 +179,7 @@ func (buf *Buffer) ensureCapacity(needed int) {
 	}
 }
 
-func classFor(size int) (idx int, classCap int, ok bool) {
+func classFor(size int) (idx, classCap int, ok bool) {
 	for i, class := range sizeClasses {
 		if size <= class {
 			return i, class, true
diff --git a/internal/zlib/writer.go b/internal/zlib/writer.go
index 78ec8034..75a8ec1d 100644
--- a/internal/zlib/writer.go
+++ b/internal/zlib/writer.go
@@ -136,13 +136,13 @@ func (z *Writer) Write(p []byte) (n int, err error) {
 	n, err = z.compressor.Write(p)
 	if err != nil {
 		z.err = err
-		return
+		return n, err
 	}
 	if _, err = z.digest.Write(p); err != nil {
 		z.err = err
 		return 0, z.err
 	}
-	return
+	return n, err
 }
 
 // Flush flushes the Writer to its underlying [io.Writer].
-- 
cgit v1.3.1-10-gc9f91