@Override
public PsiType[] guessTypeToCast(
PsiExpression expr) { // TODO : make better guess based on control flow
LinkedHashSet<PsiType> types = new LinkedHashSet<>();
ContainerUtil.addIfNotNull(types, getControlFlowExpressionType(expr));
addExprTypesWhenContainerElement(types, expr);
addExprTypesByDerivedClasses(types, expr);
return types.toArray(PsiType.createArray(types.size()));
}
@Override
public void invoke(@NotNull final Project project, final Editor editor, final PsiFile file)
throws IncorrectOperationException {
if (!FileModificationService.getInstance().prepareFileForWrite(file)) return;
PsiMethod[] constructors = myClass.getConstructors();
if (constructors.length == 0) {
final AddDefaultConstructorFix defaultConstructorFix = new AddDefaultConstructorFix(myClass);
ApplicationManager.getApplication()
.runWriteAction(
new Runnable() {
@Override
public void run() {
defaultConstructorFix.invoke(project, editor, file);
}
});
constructors = myClass.getConstructors();
}
Arrays.sort(
constructors,
new Comparator<PsiMethod>() {
@Override
public int compare(PsiMethod c1, PsiMethod c2) {
final PsiMethod cc1 = RefactoringUtil.getChainedConstructor(c1);
final PsiMethod cc2 = RefactoringUtil.getChainedConstructor(c2);
if (cc1 == c2) return 1;
if (cc2 == c1) return -1;
if (cc1 == null) {
return cc2 == null ? 0 : compare(c1, cc2);
} else {
return cc2 == null ? compare(cc1, c2) : compare(cc1, cc2);
}
}
});
final ArrayList<PsiMethod> constrs =
filterConstructorsIfFieldAlreadyAssigned(constructors, getField());
if (constrs.size() > 1) {
final PsiMethodMember[] members = new PsiMethodMember[constrs.size()];
int i = 0;
for (PsiMethod constructor : constrs) {
members[i++] = new PsiMethodMember(constructor);
}
final List<PsiMethodMember> elements;
if (ApplicationManager.getApplication().isUnitTestMode()) {
elements = Arrays.asList(members);
} else {
final MemberChooser<PsiMethodMember> chooser =
new MemberChooser<PsiMethodMember>(members, false, true, project);
chooser.setTitle("Choose constructors to add parameter to");
chooser.show();
elements = chooser.getSelectedElements();
if (elements == null) return;
}
for (PsiMethodMember member : elements) {
if (!addParameterToConstructor(
project, file, editor, member.getElement(), new PsiField[] {getField()})) break;
}
} else if (!constrs.isEmpty()) {
final Collection<SmartPsiElementPointer<PsiField>> fieldsToFix = getFieldsToFix();
try {
final PsiMethod constructor = constrs.get(0);
final LinkedHashSet<PsiField> fields = new LinkedHashSet<PsiField>();
getFieldsToFix().add(myField);
for (SmartPsiElementPointer<PsiField> elementPointer : fieldsToFix) {
final PsiField field = elementPointer.getElement();
if (field != null
&& isAvailable(field)
&& filterConstructorsIfFieldAlreadyAssigned(new PsiMethod[] {constructor}, field)
.contains(constructor)) {
fields.add(field);
}
}
if (constrs.size() == constructors.length
&& fields.size() > 1
&& !ApplicationManager.getApplication().isUnitTestMode()) {
PsiFieldMember[] members = new PsiFieldMember[fields.size()];
int i = 0;
for (PsiField field : fields) {
members[i++] = new PsiFieldMember(field);
}
MemberChooser<PsiElementClassMember> chooser =
new MemberChooser<PsiElementClassMember>(members, false, true, project);
chooser.setTitle("Choose Fields to Generate Constructor Parameters for");
chooser.show();
if (chooser.getExitCode() != DialogWrapper.OK_EXIT_CODE) return;
final List<PsiElementClassMember> selectedElements = chooser.getSelectedElements();
if (selectedElements == null) return;
fields.clear();
for (PsiElementClassMember member : selectedElements) {
fields.add((PsiField) member.getElement());
}
}
addParameterToConstructor(
project,
file,
editor,
constructor,
constrs.size() == constructors.length
? fields.toArray(new PsiField[fields.size()])
: new PsiField[] {getField()});
} finally {
fieldsToFix.clear();
}
}
}