private static boolean isFixApplicable(PsiExpression location) {
// conservative check to see if the result value of the postfix
// expression is used later in the same expression statement.
// Applying the quick fix in such a case would break the code
// because the explicit unboxing code would split the expression in
// multiple statements.
final PsiElement parent = location.getParent();
if (!(parent instanceof PsiPostfixExpression)) {
return true;
}
final PsiReferenceExpression reference;
if (location instanceof PsiReferenceExpression) {
reference = (PsiReferenceExpression) location;
} else if (location instanceof PsiArrayAccessExpression) {
final PsiArrayAccessExpression arrayAccessExpression = (PsiArrayAccessExpression) location;
final PsiExpression expression = arrayAccessExpression.getArrayExpression();
if (!(expression instanceof PsiReferenceExpression)) {
return true;
}
reference = (PsiReferenceExpression) expression;
} else {
return true;
}
final PsiElement element = reference.resolve();
if (element == null) {
return true;
}
final PsiStatement statement = PsiTreeUtil.getParentOfType(parent, PsiStatement.class);
final LocalSearchScope scope = new LocalSearchScope(statement);
final Query<PsiReference> query = ReferencesSearch.search(element, scope);
final Collection<PsiReference> references = query.findAll();
return references.size() <= 1;
}
