@Override
public void doFix(Project project, ProblemDescriptor descriptor)
throws IncorrectOperationException {
final PsiElement forElement = descriptor.getPsiElement();
final PsiElement parent = forElement.getParent();
if (!(parent instanceof PsiForStatement)) {
return;
}
final PsiForStatement forStatement = (PsiForStatement)parent;
final String newExpression;
if (isArrayLoopStatement(forStatement)) {
newExpression = createArrayIterationText(forStatement);
}
else if (isCollectionLoopStatement(forStatement, ignoreUntypedCollections)) {
newExpression = createCollectionIterationText(forStatement);
}
else if (isIndexedListLoopStatement(forStatement, ignoreUntypedCollections)) {
newExpression = createListIterationText(forStatement);
}
else {
return;
}
if (newExpression == null) {
return;
}
replaceStatementAndShortenClassNames(forStatement, newExpression);
}
@Override
public void visitElement(PsiElement element) {
if (element.getLanguage() != JavaLanguage.INSTANCE) {
return;
}
if (!PsiUtil.isLanguageLevel5OrHigher(element)) {
return;
}
super.visitElement(element);
}
private void replaceCollectionGetAccess(
PsiElement element, String contentVariableName,
PsiVariable listVariable, String indexName,
PsiElement childToSkip, StringBuilder out) {
if (isListGetLookup(element, indexName, listVariable)) {
out.append(contentVariableName);
}
else {
final PsiElement[] children = element.getChildren();
if (children.length == 0) {
final String text = element.getText();
if (PsiKeyword.INSTANCEOF.equals(text) &&
out.charAt(out.length() - 1) != ' ') {
out.append(' ');
}
out.append(text);
}
else {
boolean skippingWhiteSpace = false;
for (final PsiElement child : children) {
if (child.equals(childToSkip)) {
skippingWhiteSpace = true;
}
else if (child instanceof PsiWhiteSpace &&
skippingWhiteSpace) {
//don't do anything
}
else {
skippingWhiteSpace = false;
replaceCollectionGetAccess(child,
contentVariableName,
listVariable, indexName,
childToSkip, out);
}
}
}
}
}
private void replaceIteratorNext(
PsiElement element, String contentVariableName,
String iteratorName, PsiElement childToSkip,
StringBuilder out, PsiType contentType) {
if (isIteratorNext(element, iteratorName, contentType)) {
out.append(contentVariableName);
}
else {
final PsiElement[] children = element.getChildren();
if (children.length == 0) {
final String text = element.getText();
if (PsiKeyword.INSTANCEOF.equals(text) &&
out.charAt(out.length() - 1) != ' ') {
out.append(' ');
}
out.append(text);
}
else {
boolean skippingWhiteSpace = false;
for (final PsiElement child : children) {
if (child.equals(childToSkip)) {
skippingWhiteSpace = true;
}
else if (child instanceof PsiWhiteSpace &&
skippingWhiteSpace) {
//don't do anything
}
else {
skippingWhiteSpace = false;
replaceIteratorNext(child, contentVariableName,
iteratorName, childToSkip, out, contentType);
}
}
}
}
}