private static boolean isCompileTimeFlagReference(PsiElement element) {
PsiElement resolved =
element instanceof PsiReferenceExpression
? ((PsiReferenceExpression) element).resolve()
: null;
if (!(resolved instanceof PsiField)) return false;
PsiField field = (PsiField) resolved;
return field.hasModifierProperty(PsiModifier.FINAL)
&& field.hasModifierProperty(PsiModifier.STATIC)
&& PsiType.BOOLEAN.equals(field.getType());
}
private boolean checkCondition(
@Nullable PsiExpression condition,
@NotNull PsiStatement context,
List<PsiExpression> notUpdated) {
if (condition == null) {
return false;
}
if (PsiUtil.isConstantExpression(condition) || PsiKeyword.NULL.equals(condition.getText())) {
return true;
}
if (condition instanceof PsiInstanceOfExpression) {
final PsiInstanceOfExpression instanceOfExpression = (PsiInstanceOfExpression) condition;
final PsiExpression operand = instanceOfExpression.getOperand();
return checkCondition(operand, context, notUpdated);
} else if (condition instanceof PsiParenthesizedExpression) {
// catch stuff like "while ((x)) { ... }"
final PsiExpression expression = ((PsiParenthesizedExpression) condition).getExpression();
return checkCondition(expression, context, notUpdated);
} else if (condition instanceof PsiPolyadicExpression) {
// while (value != x) { ... }
// while (value != (x + y)) { ... }
// while (b1 && b2) { ... }
final PsiPolyadicExpression polyadicExpression = (PsiPolyadicExpression) condition;
for (PsiExpression operand : polyadicExpression.getOperands()) {
if (!checkCondition(operand, context, notUpdated)) {
return false;
}
}
return true;
} else if (condition instanceof PsiReferenceExpression) {
final PsiReferenceExpression referenceExpression = (PsiReferenceExpression) condition;
final PsiElement element = referenceExpression.resolve();
if (element instanceof PsiField) {
final PsiField field = (PsiField) element;
final PsiType type = field.getType();
if (field.hasModifierProperty(PsiModifier.FINAL) && type.getArrayDimensions() == 0) {
if (field.hasModifierProperty(PsiModifier.STATIC)) {
return true;
}
final PsiExpression qualifier = referenceExpression.getQualifierExpression();
if (qualifier == null) {
return true;
} else if (checkCondition(qualifier, context, notUpdated)) {
return true;
}
}
} else if (element instanceof PsiVariable) {
final PsiVariable variable = (PsiVariable) element;
if (variable.hasModifierProperty(PsiModifier.FINAL)) {
// final variables cannot be updated, don't bother to
// flag them
return true;
} else if (element instanceof PsiLocalVariable || element instanceof PsiParameter) {
if (!VariableAccessUtils.variableIsAssigned(variable, context)) {
notUpdated.add(referenceExpression);
return true;
}
}
}
} else if (condition instanceof PsiPrefixExpression) {
final PsiPrefixExpression prefixExpression = (PsiPrefixExpression) condition;
final IElementType tokenType = prefixExpression.getOperationTokenType();
if (JavaTokenType.EXCL.equals(tokenType)
|| JavaTokenType.PLUS.equals(tokenType)
|| JavaTokenType.MINUS.equals(tokenType)) {
final PsiExpression operand = prefixExpression.getOperand();
return checkCondition(operand, context, notUpdated);
}
} else if (condition instanceof PsiArrayAccessExpression) {
// Actually the contents of the array could change nevertheless
// if it is accessed through a different reference like this:
// int[] local_ints = new int[]{1, 2};
// int[] other_ints = local_ints;
// while (local_ints[0] > 0) { other_ints[0]--; }
//
// Keep this check?
final PsiArrayAccessExpression accessExpression = (PsiArrayAccessExpression) condition;
final PsiExpression indexExpression = accessExpression.getIndexExpression();
return checkCondition(indexExpression, context, notUpdated)
&& checkCondition(accessExpression.getArrayExpression(), context, notUpdated);
} else if (condition instanceof PsiConditionalExpression) {
final PsiConditionalExpression conditionalExpression = (PsiConditionalExpression) condition;
final PsiExpression thenExpression = conditionalExpression.getThenExpression();
final PsiExpression elseExpression = conditionalExpression.getElseExpression();
if (thenExpression == null || elseExpression == null) {
return false;
}
return checkCondition(conditionalExpression.getCondition(), context, notUpdated)
&& checkCondition(thenExpression, context, notUpdated)
&& checkCondition(elseExpression, context, notUpdated);
} else if (condition instanceof PsiThisExpression) {
return true;
} else if (condition instanceof PsiMethodCallExpression && !ignoreIterators) {
final PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression) condition;
if (!IteratorUtils.isCallToHasNext(methodCallExpression)) {
return false;
}
final PsiReferenceExpression methodExpression = methodCallExpression.getMethodExpression();
final PsiExpression qualifierExpression = methodExpression.getQualifierExpression();
if (qualifierExpression instanceof PsiReferenceExpression) {
final PsiReferenceExpression referenceExpression =
(PsiReferenceExpression) qualifierExpression;
final PsiElement element = referenceExpression.resolve();
if (!(element instanceof PsiVariable)) {
return false;
}
final PsiVariable variable = (PsiVariable) element;
if (!IteratorUtils.containsCallToScannerNext(context, variable, true)) {
notUpdated.add(qualifierExpression);
return true;
}
} else {
if (!IteratorUtils.containsCallToScannerNext(context, null, true)) {
notUpdated.add(methodCallExpression);
return true;
}
}
}
return false;
}
private static String[] getFieldNames(final RadComponent component, final String currentName) {
final ArrayList<String> result = new ArrayList<String>();
if (currentName != null) {
result.add(currentName);
}
final IRootContainer root = FormEditingUtil.getRoot(component);
final String className = root.getClassToBind();
if (className == null) {
return ArrayUtil.toStringArray(result);
}
final PsiClass aClass = FormEditingUtil.findClassToBind(component.getModule(), className);
if (aClass == null) {
return ArrayUtil.toStringArray(result);
}
final PsiField[] fields = aClass.getFields();
for (final PsiField field : fields) {
if (field.hasModifierProperty(PsiModifier.STATIC)) {
continue;
}
final String fieldName = field.getName();
if (Comparing.equal(currentName, fieldName)) {
continue;
}
if (!FormEditingUtil.isBindingUnique(component, fieldName, root)) {
continue;
}
final String componentClassName;
if (component instanceof RadErrorComponent) {
componentClassName = component.getComponentClassName();
} else if (component instanceof RadHSpacer || component instanceof RadVSpacer) {
componentClassName = Spacer.class.getName();
} else {
componentClassName = component.getComponentClass().getName();
}
final PsiType componentType;
try {
componentType =
JavaPsiFacade.getInstance(component.getProject())
.getElementFactory()
.createTypeFromText(componentClassName, null);
} catch (IncorrectOperationException e) {
continue;
}
final PsiType fieldType = field.getType();
if (!fieldType.isAssignableFrom(componentType)) {
continue;
}
result.add(fieldName);
}
String text = FormInspectionUtil.getText(component.getModule(), component);
if (text != null) {
String binding = BindingProperty.suggestBindingFromText(component, text);
if (binding != null && !result.contains(binding)) {
result.add(binding);
}
}
final String[] names = ArrayUtil.toStringArray(result);
Arrays.sort(names);
return names;
}