From 2b4097577d6fa870df37e71507b310117f8d4b27 Mon Sep 17 00:00:00 2001
From: Koichi Shiraishi <zchee.io@gmail.com>
Date: Mon, 23 Nov 2020 14:13:45 +0900
Subject: [PATCH] Pass expression to unsafe.Pointer directly

---
 decode_array.go  | 6 ++----
 decode_slice.go  | 6 ++----
 decode_struct.go | 6 ++----
 3 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/decode_array.go b/decode_array.go
index c333a05..9ea73ec 100644
--- a/decode_array.go
+++ b/decode_array.go
@@ -31,8 +31,7 @@ func (d *arrayDecoder) decodeStream(s *stream, p unsafe.Pointer) error {
 			idx := 0
 			for {
 				s.cursor++
-				addr := uintptr(p) + uintptr(idx)*d.size
-				if err := d.valueDecoder.decodeStream(s, *(*unsafe.Pointer)(unsafe.Pointer(&addr))); err != nil {
+				if err := d.valueDecoder.decodeStream(s, unsafe.Pointer(uintptr(p)+uintptr(idx)*d.size)); err != nil {
 					return err
 				}
 				s.skipWhiteSpace()
@@ -91,8 +90,7 @@ func (d *arrayDecoder) decode(buf []byte, cursor int64, p unsafe.Pointer) (int64
 			idx := 0
 			for {
 				cursor++
-				addr := uintptr(p) + uintptr(idx)*d.size
-				c, err := d.valueDecoder.decode(buf, cursor, *(*unsafe.Pointer)(unsafe.Pointer(&addr)))
+				c, err := d.valueDecoder.decode(buf, cursor, unsafe.Pointer(uintptr(p)+uintptr(idx)*d.size))
 				if err != nil {
 					return 0, err
 				}
diff --git a/decode_slice.go b/decode_slice.go
index 6269dfb..ff17914 100644
--- a/decode_slice.go
+++ b/decode_slice.go
@@ -90,8 +90,7 @@ func (d *sliceDecoder) decodeStream(s *stream, p unsafe.Pointer) error {
 					dst := sliceHeader{data: data, len: idx, cap: cap}
 					copySlice(d.elemType, dst, src)
 				}
-				addr := uintptr(data) + uintptr(idx)*d.size
-				if err := d.valueDecoder.decodeStream(s, *(*unsafe.Pointer)(unsafe.Pointer(&addr))); err != nil {
+				if err := d.valueDecoder.decodeStream(s, unsafe.Pointer(uintptr(data)+uintptr(idx)*d.size)); err != nil {
 					return err
 				}
 				s.skipWhiteSpace()
@@ -191,8 +190,7 @@ func (d *sliceDecoder) decode(buf []byte, cursor int64, p unsafe.Pointer) (int64
 					dst := sliceHeader{data: data, len: idx, cap: cap}
 					copySlice(d.elemType, dst, src)
 				}
-				addr := uintptr(data) + uintptr(idx)*d.size
-				c, err := d.valueDecoder.decode(buf, cursor, *(*unsafe.Pointer)(unsafe.Pointer(&addr)))
+				c, err := d.valueDecoder.decode(buf, cursor, unsafe.Pointer(uintptr(data)+uintptr(idx)*d.size))
 				if err != nil {
 					return 0, err
 				}
diff --git a/decode_struct.go b/decode_struct.go
index 2bc8f46..19990e9 100644
--- a/decode_struct.go
+++ b/decode_struct.go
@@ -54,8 +54,7 @@ func (d *structDecoder) decodeStream(s *stream, p unsafe.Pointer) error {
 		k := *(*string)(unsafe.Pointer(&key))
 		field, exists := d.fieldMap[k]
 		if exists {
-			addr := uintptr(p) + field.offset
-			if err := field.dec.decodeStream(s, *(*unsafe.Pointer)(unsafe.Pointer(&addr))); err != nil {
+			if err := field.dec.decodeStream(s, unsafe.Pointer(uintptr(p)+field.offset)); err != nil {
 				return err
 			}
 		} else if s.disallowUnknownFields {
@@ -109,8 +108,7 @@ func (d *structDecoder) decode(buf []byte, cursor int64, p unsafe.Pointer) (int6
 		k := *(*string)(unsafe.Pointer(&key))
 		field, exists := d.fieldMap[k]
 		if exists {
-			addr := uintptr(p) + field.offset
-			c, err := field.dec.decode(buf, cursor, *(*unsafe.Pointer)(unsafe.Pointer(&addr)))
+			c, err := field.dec.decode(buf, cursor, unsafe.Pointer(uintptr(p)+field.offset))
 			if err != nil {
 				return 0, err
 			}