@Override
	public ProgramLocation getProgramLocation(int row, int col, ListingField bf) {
		Object obj = bf.getProxy().getObject();
		if (!(obj instanceof CodeUnit)) {
			return null;
		}

		CodeUnit cu = (CodeUnit) obj;
		String[] comment = cu.getCommentAsArray(CommentType.POST);

		int[] cpath = null;
		if (cu instanceof Data) {
			cpath = ((Data) cu).getComponentPath();
		}

		return new PostCommentFieldLocation(cu.getProgram(), cu.getMinAddress(), cpath, comment,
			row, col);
	}
@see ghidra.app.util.viewer.field.FieldFactory#getProgramLocation(int, int, ghidra.app.util.viewer.field.ListingField)
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/field/PostCommentFieldFactory.java