[foreign] RFR 8218153: Read/Write of Value layout should honor declared endianness

[John Rose]

On Feb 27, 2019, at 2:25 PM, Henry Jen <henry.jen at oracle.com> wrote:
> 
> OK, if we agreed that certainly can be done. :)
> 
> Just that, the method doesn’t make sense for other Layout except Value and Group, so they will be no-op.

Also Sequence?

+    protected static Layout withEndianness(Layout layout, Value.Endianness newEndian) {
+        if (layout instanceof Sequence) {
+            return ((Sequence) layout).withEndianness(newEndian);
+        } else if (layout instanceof Group) {
+            return ((Group) layout).withEndianness(newEndian);
+        } else if (layout instanceof Value && ((Value) layout).endianness().isEmpty()) {
+            return ((Value) layout).withEndianness(newEndian);
+        } else {
+            return layout;
+        }
+    }