@Override
		public final AddressSet getAddressSet(T cu, Program program) {
			AddressSet addrSet = new AddressSet();
			if (cu == null) {
				return addrSet;
			}
			addrSet.addRange(cu.getMinAddress(), cu.getMaxAddress());
			return addrSet;
		}
Abstract class for comparing two code units to determine if a particular program property
differs. It provides a default implementation of the <CODE>compare</CODE> method
which compares the code unit minimum addresses. It also implements the
<CODE>getAddressSet</CODE> method, which gets the addresses for the specified
code unit.
Any class that extends this one must implement the <CODE>isSame</CODE> method.
isSame should compare the desired property of the two code units to determine
if it is equal in each.
Ghidra/Features/Base/src/main/java/ghidra/program/util/ProgramDiff.java