@Override
@NotNull
public String getText() {
if (getFieldsToFix().size() > 1 && myClass.getConstructors().length <= 1)
return "Add constructor parameters";
return QuickFixBundle.message("add.constructor.parameter.name");
}
private void calculateInitializersConflicts(MultiMap<PsiElement, String> conflicts) {
final PsiClassInitializer[] initializers = sourceClass.getInitializers();
for (PsiClassInitializer initializer : initializers) {
if (initializerDependsOnMoved(initializer)) {
conflicts.putValue(initializer, "Class initializer requires moved members");
}
}
for (PsiMethod constructor : sourceClass.getConstructors()) {
if (initializerDependsOnMoved(constructor.getBody())) {
conflicts.putValue(constructor, "Constructor requires moved members");
}
}
}
@Override
public void moveFieldInitializations(LinkedHashSet<PsiField> movedFields) {
PsiMethod[] constructors = myTargetSuperClass.getConstructors();
if (constructors.length == 0) {
constructors = new PsiMethod[] {null};
}
HashMap<PsiMethod, HashSet<PsiMethod>> constructorsToSubConstructors =
buildConstructorsToSubConstructorsMap(constructors);
for (PsiMethod constructor : constructors) {
HashSet<PsiMethod> subConstructors = constructorsToSubConstructors.get(constructor);
tryToMoveInitializers(constructor, subConstructors, movedFields);
}
}
public static boolean isConstructorPrimary(@NotNull PsiMethod constructor) {
if (constructor.getParent() instanceof PsiClass) {
PsiClass parent = (PsiClass) constructor.getParent();
if (parent.getConstructors().length == 1) {
return true;
} else {
PsiMethod c =
getPrimaryConstructorForThisCase(parent); // TODO: move up to classToClass() method
if (c != null && c.hashCode() == constructor.hashCode()) {
return true;
}
}
}
return false;
}
public static boolean hasAccessibleConstructor(PsiType type) {
if (type instanceof PsiArrayType) return true;
final PsiClass psiClass = PsiUtil.resolveClassInType(type);
if (psiClass == null || psiClass.isEnum() || psiClass.isAnnotationType()) return false;
if (!(psiClass instanceof PsiCompiledElement)) return true;
final PsiMethod[] methods = psiClass.getConstructors();
if (methods.length == 0) return true;
for (final PsiMethod method : methods) {
if (!method.hasModifierProperty(PsiModifier.PRIVATE)) return true;
}
return false;
}
private static boolean canCallMethodsInConstructors(PsiClass aClass, boolean virtual) {
for (PsiMethod constructor : aClass.getConstructors()) {
if (!constructor.getLanguage().isKindOf(JavaLanguage.INSTANCE)) return true;
PsiCodeBlock body = constructor.getBody();
if (body == null) continue;
for (PsiMethodCallExpression call :
SyntaxTraverser.psiTraverser().withRoot(body).filter(PsiMethodCallExpression.class)) {
PsiReferenceExpression methodExpression = call.getMethodExpression();
if (methodExpression instanceof PsiThisExpression
|| methodExpression instanceof PsiSuperExpression) continue;
if (!virtual) return true;
PsiMethod target = call.resolveMethod();
if (target != null && PsiUtil.canBeOverriden(target)) return true;
}
}
return false;
}
@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();
}
}
}
protected void performRefactoring(@NotNull UsageInfo[] usageInfos) {
final PsiClass psiClass = buildClass();
if (psiClass == null) return;
if (delegationRequired) {
buildDelegate();
}
myExtractEnumProcessor.performEnumConstantTypeMigration(usageInfos);
final Set<PsiMember> members = new HashSet<PsiMember>();
for (PsiMethod method : methods) {
final PsiMethod member = psiClass.findMethodBySignature(method, false);
if (member != null) {
members.add(member);
}
}
for (PsiField field : fields) {
final PsiField member = psiClass.findFieldByName(field.getName(), false);
if (member != null) {
members.add(member);
final PsiExpression initializer = member.getInitializer();
if (initializer != null) {
final boolean[] moveInitializerToConstructor = new boolean[1];
initializer.accept(
new JavaRecursiveElementWalkingVisitor() {
@Override
public void visitReferenceExpression(PsiReferenceExpression expression) {
super.visitReferenceExpression(expression);
final PsiElement resolved = expression.resolve();
if (resolved instanceof PsiField && !members.contains(resolved)) {
moveInitializerToConstructor[0] = true;
}
}
});
if (moveInitializerToConstructor[0]) {
final PsiElementFactory elementFactory = JavaPsiFacade.getElementFactory(myProject);
PsiMethod[] constructors = psiClass.getConstructors();
if (constructors.length == 0) {
final PsiMethod constructor =
(PsiMethod) elementFactory.createConstructor().setName(psiClass.getName());
constructors = new PsiMethod[] {(PsiMethod) psiClass.add(constructor)};
}
for (PsiMethod constructor : constructors) {
MoveInstanceMembersUtil.moveInitializerToConstructor(
elementFactory, constructor, member);
}
}
}
}
}
if (myGenerateAccessors) {
final NecessaryAccessorsVisitor visitor = checkNecessaryGettersSetters4SourceClass();
for (PsiField field : visitor.getFieldsNeedingGetter()) {
sourceClass.add(GenerateMembersUtil.generateGetterPrototype(field));
}
for (PsiField field : visitor.getFieldsNeedingSetter()) {
sourceClass.add(GenerateMembersUtil.generateSetterPrototype(field));
}
}
super.performRefactoring(usageInfos);
if (myNewVisibility == null) return;
for (PsiMember member : members) {
VisibilityUtil.fixVisibility(UsageViewUtil.toElements(usageInfos), member, myNewVisibility);
}
}
private static boolean processCachedMembersByName(
@NotNull PsiClass aClass,
@NotNull PsiScopeProcessor processor,
@NotNull ResolveState state,
@Nullable Set<PsiClass> visited,
PsiElement last,
@NotNull PsiElement place,
boolean isRaw,
@NotNull PsiSubstitutor substitutor,
@NotNull MembersMap value,
String name,
@NotNull LanguageLevel languageLevel) {
final ElementClassHint classHint = processor.getHint(ElementClassHint.KEY);
PsiElementFactory factory = JavaPsiFacade.getInstance(aClass.getProject()).getElementFactory();
if (classHint == null || classHint.shouldProcess(ElementClassHint.DeclarationKind.FIELD)) {
final PsiField fieldByName = aClass.findFieldByName(name, false);
if (fieldByName != null) {
processor.handleEvent(PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, aClass);
if (!processor.execute(fieldByName, state)) return false;
} else {
final Map<String, List<Pair<PsiMember, PsiSubstitutor>>> allFieldsMap =
value.get(MemberType.FIELD);
final List<Pair<PsiMember, PsiSubstitutor>> list = allFieldsMap.get(name);
if (list != null) {
for (final Pair<PsiMember, PsiSubstitutor> candidate : list) {
PsiMember candidateField = candidate.getFirst();
PsiSubstitutor finalSubstitutor =
obtainFinalSubstitutor(
candidateField.getContainingClass(),
candidate.getSecond(),
aClass,
substitutor,
factory,
languageLevel);
processor.handleEvent(
PsiScopeProcessor.Event.SET_DECLARATION_HOLDER,
candidateField.getContainingClass());
if (!processor.execute(candidateField, state.put(PsiSubstitutor.KEY, finalSubstitutor)))
return false;
}
}
}
}
if (classHint == null || classHint.shouldProcess(ElementClassHint.DeclarationKind.CLASS)) {
if (last != null && last.getParent() == aClass) {
if (last instanceof PsiClass) {
if (!processor.execute(last, state)) return false;
}
// Parameters
final PsiTypeParameterList list = aClass.getTypeParameterList();
if (list != null && !list.processDeclarations(processor, state, last, place)) return false;
}
if (!(last instanceof PsiReferenceList)) {
final PsiClass classByName = aClass.findInnerClassByName(name, false);
if (classByName != null) {
processor.handleEvent(PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, aClass);
if (!processor.execute(classByName, state)) return false;
} else {
Map<String, List<Pair<PsiMember, PsiSubstitutor>>> allClassesMap =
value.get(MemberType.CLASS);
List<Pair<PsiMember, PsiSubstitutor>> list = allClassesMap.get(name);
if (list != null) {
for (final Pair<PsiMember, PsiSubstitutor> candidate : list) {
PsiMember inner = candidate.getFirst();
PsiClass containingClass = inner.getContainingClass();
if (containingClass != null) {
PsiSubstitutor finalSubstitutor =
obtainFinalSubstitutor(
containingClass,
candidate.getSecond(),
aClass,
substitutor,
factory,
languageLevel);
processor.handleEvent(
PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, containingClass);
if (!processor.execute(inner, state.put(PsiSubstitutor.KEY, finalSubstitutor)))
return false;
}
}
}
}
}
}
if (classHint == null || classHint.shouldProcess(ElementClassHint.DeclarationKind.METHOD)) {
if (processor instanceof MethodResolverProcessor) {
final MethodResolverProcessor methodResolverProcessor = (MethodResolverProcessor) processor;
if (methodResolverProcessor.isConstructor()) {
final PsiMethod[] constructors = aClass.getConstructors();
methodResolverProcessor.handleEvent(
PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, aClass);
for (PsiMethod constructor : constructors) {
if (!methodResolverProcessor.execute(constructor, state)) return false;
}
return true;
}
}
Map<String, List<Pair<PsiMember, PsiSubstitutor>>> allMethodsMap =
value.get(MemberType.METHOD);
List<Pair<PsiMember, PsiSubstitutor>> list = allMethodsMap.get(name);
if (list != null) {
for (final Pair<PsiMember, PsiSubstitutor> candidate : list) {
ProgressIndicatorProvider.checkCanceled();
PsiMethod candidateMethod = (PsiMethod) candidate.getFirst();
if (processor instanceof MethodResolverProcessor) {
if (candidateMethod.isConstructor()
!= ((MethodResolverProcessor) processor).isConstructor()) continue;
}
final PsiClass containingClass = candidateMethod.getContainingClass();
if (visited != null && visited.contains(candidateMethod.getContainingClass())) {
continue;
}
PsiSubstitutor finalSubstitutor =
obtainFinalSubstitutor(
containingClass,
candidate.getSecond(),
aClass,
substitutor,
factory,
languageLevel);
finalSubstitutor = checkRaw(isRaw, factory, candidateMethod, finalSubstitutor);
processor.handleEvent(PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, containingClass);
if (!processor.execute(candidateMethod, state.put(PsiSubstitutor.KEY, finalSubstitutor)))
return false;
}
if (visited != null) {
for (Pair<PsiMember, PsiSubstitutor> aList : list) {
visited.add(aList.getFirst().getContainingClass());
}
}
}
}
return true;
}
@NotNull
public Class classToClass(@NotNull PsiClass psiClass) {
Set<String> modifiers = modifiersListToModifiersSet(psiClass.getModifierList());
List<Field> fields = fieldsToFieldList(psiClass.getFields(), psiClass);
List<Element> typeParameters = elementsToElementList(psiClass.getTypeParameters());
List<Type> implementsTypes = typesToNotNullableTypeList(psiClass.getImplementsListTypes());
List<Type> extendsTypes = typesToNotNullableTypeList(psiClass.getExtendsListTypes());
IdentifierImpl name = new IdentifierImpl(psiClass.getName());
List<Expression> baseClassParams = new LinkedList<Expression>();
List<Member> members = getMembers(psiClass);
// we try to find super() call and generate class declaration like that: class A(name: String, i
// : Int) : Base(name)
SuperVisitor visitor = new SuperVisitor();
psiClass.accept(visitor);
Collection<PsiExpressionList> resolvedSuperCallParameters =
visitor.getResolvedSuperCallParameters();
if (resolvedSuperCallParameters.size() == 1) {
baseClassParams.addAll(
expressionsToExpressionList(
resolvedSuperCallParameters.toArray(new PsiExpressionList[1])[0].getExpressions()));
}
// we create primary constructor from all non final fields and fields without initializers
if (!psiClass.isEnum()
&& !psiClass.isInterface()
&& psiClass.getConstructors().length > 1
&& getPrimaryConstructorForThisCase(psiClass) == null) {
List<Field> finalOrWithEmptyInitializer = getFinalOrWithEmptyInitializer(fields);
Map<String, String> initializers = new HashMap<String, String>();
for (Member m : members) {
// and modify secondaries
if (m.getKind() == INode.Kind.CONSTRUCTOR) {
Function f = (Function) m;
if (!((Constructor) f).isPrimary()) {
for (Field fo : finalOrWithEmptyInitializer) {
String init = getDefaultInitializer(fo);
initializers.put(fo.getIdentifier().toKotlin(), init);
}
List<Statement> newStatements = new LinkedList<Statement>();
for (Statement s : f.getBlock().getStatements()) {
boolean isRemoved = false;
if (s.getKind() == INode.Kind.ASSIGNMENT_EXPRESSION) {
AssignmentExpression assignmentExpression = (AssignmentExpression) s;
if (assignmentExpression.getLeft().getKind() == INode.Kind.CALL_CHAIN) {
for (Field fo : finalOrWithEmptyInitializer) {
String id = fo.getIdentifier().toKotlin();
if (((CallChainExpression) assignmentExpression.getLeft())
.getIdentifier()
.toKotlin()
.endsWith("." + id)) {
initializers.put(id, assignmentExpression.getRight().toKotlin());
isRemoved = true;
}
}
}
}
if (!isRemoved) {
newStatements.add(s);
}
}
newStatements.add(
0,
new DummyStringExpression(
"val __ = "
+ createPrimaryConstructorInvocation(
name.toKotlin(), finalOrWithEmptyInitializer, initializers)));
f.setBlock(new Block(newStatements));
}
}
}
members.add(
new Constructor(
Identifier.EMPTY_IDENTIFIER,
Collections.<String>emptySet(),
new ClassType(name),
Collections.<Element>emptyList(),
new ParameterList(createParametersFromFields(finalOrWithEmptyInitializer)),
new Block(createInitStatementsFromFields(finalOrWithEmptyInitializer)),
true));
}
if (psiClass.isInterface()) {
return new Trait(
this,
name,
modifiers,
typeParameters,
extendsTypes,
Collections.<Expression>emptyList(),
implementsTypes,
members);
}
if (psiClass.isEnum()) {
return new Enum(
this,
name,
modifiers,
typeParameters,
Collections.<Type>emptyList(),
Collections.<Expression>emptyList(),
implementsTypes,
members);
}
return new Class(
this,
name,
modifiers,
typeParameters,
extendsTypes,
baseClassParams,
implementsTypes,
members);
}