fProgram.accept(assignmentFinder);
// those are all assignments in the selected method
fMethodAssignments = assignmentFinder.getFoundAssignments();
fSelectedNodesFinder = new RangeNodeFinder(fSelectedSourceRange);
fProgram.accept(fSelectedNodesFinder);
if(fSelectedNodesFinder.getNodes().size() == 0) {
throw new RefactoringStatusException(RefactoringMessages.ExtractMethodInputPage_errorCouldNotParseSelectedCode);
}