playing with Go "cannot take the address of" temporary variable

gistfile1.txt

// b := []byte("lksajflkd sajfsasdjkf lkfjsalkjf salkfjsa lkfj lalkjasfd lkj")

	// this works, but we should be able to not have to do this in so many steps
	// bBlob := Blob(b)
	// pBlob := &bBlob

	// this doesn't work
	// cannot take the address of Blob(b)
	// pBlob := &Blob(b)
	// we're asking Go to do something like this, getting the address of a temporary variable
	// pBlob := (x := string(b); return &x)

	// this works, but prevents us from using the custom Blob type
	// pBlob := &b

	// this doesn't work either, so the problem has nothing to do with custom types
	// pBlob := &(string(b))

	//
	// pBlob := assignBlobPointer(b)