From e9403d8b182f2f94cc7fe775500dae43188bc211 Mon Sep 17 00:00:00 2001
From: Elias Naur <mail@eliasnaur.com>
Date: Wed, 30 Dec 2020 16:56:23 +0100
Subject: [PATCH] internal/unsafe: add StructView

Needed by the compute renderer.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
---
 internal/unsafe/unsafe.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/internal/unsafe/unsafe.go b/internal/unsafe/unsafe.go
index 29c485fb..3e963777 100644
--- a/internal/unsafe/unsafe.go
+++ b/internal/unsafe/unsafe.go
@@ -7,6 +7,18 @@ import (
 	"unsafe"
 )
 
+// StructView returns a byte slice view of a struct.
+func StructView(s interface{}) []byte {
+	v := reflect.ValueOf(s).Elem()
+	sz := int(v.Type().Size())
+	var res []byte
+	h := (*reflect.SliceHeader)(unsafe.Pointer(&res))
+	h.Data = uintptr(unsafe.Pointer(v.UnsafeAddr()))
+	h.Cap = sz
+	h.Len = sz
+	return res
+}
+
 // BytesView returns a byte slice view of a slice.
 func BytesView(s interface{}) []byte {
 	v := reflect.ValueOf(s)