Use TypeParameter

dumpstruct.go

@@ -8,19 +8,15 @@ import (
 // DumpStruct takes a structure instance v as input and copies the memory to dst.
 //
 // If the size of dst is smaller than the size of v, a new byte slice is allocated.
-func DumpStruct(dst []byte, v interface{}) []byte {
-	srcV := reflect.ValueOf(v)
-
-	srcP := unsafe.Pointer(srcV.Pointer())
-
-	size := srcV.Elem().Type().Size()
+func DumpStruct[T any](dst []byte, v *T) []byte {
+	size := int(unsafe.Sizeof(*v))
 	if len(dst) >= int(size) {
 		dst = dst[:size]
 	} else {
 		dst = make([]byte, size)
 	}
 	BufH := (*reflect.SliceHeader)(unsafe.Pointer(&dst))
 
-	MemMove(unsafe.Pointer(BufH.Data), srcP, size)
+	MemMove(unsafe.Pointer(BufH.Data), unsafe.Pointer(v), uintptr(size))
 	return dst
 }

go.mod

@@ -1,3 +1,3 @@
 module github.com/lemon-mint/libuseful
 
-go 1.17
+go 1.18