protected void performRefactoring(final UsageInfo[] usages) {
new PushDownProcessor(
mySuperClass.getProject(),
myMemberInfos,
mySuperClass,
new DocCommentPolicy(DocCommentPolicy.ASIS)) {
// push down conflicts are already collected
@Override
protected boolean showConflicts(MultiMap<PsiElement, String> conflicts, UsageInfo[] usages) {
return true;
}
}.run();
RefactoringUtil.sortDepthFirstRightLeftOrder(usages);
for (UsageInfo usageInfo : usages) {
if (!(usageInfo instanceof ReplaceExtendsListUsageInfo)) {
try {
((FixableUsageInfo) usageInfo).fixUsage();
} catch (IncorrectOperationException e) {
LOG.info(e);
}
}
}
replaceInnerTypeUsages();
// postpone broken hierarchy
for (UsageInfo usage : usages) {
if (usage instanceof ReplaceExtendsListUsageInfo) {
((ReplaceExtendsListUsageInfo) usage).fixUsage();
}
}
try {
mySuperClass.delete();
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
protected void findUsages(@NotNull final List<FixableUsageInfo> usages) {
final JavaPsiFacade facade = JavaPsiFacade.getInstance(myProject);
final PsiElementFactory elementFactory = facade.getElementFactory();
final PsiResolveHelper resolveHelper = facade.getResolveHelper();
ReferencesSearch.search(mySuperClass)
.forEach(
new Processor<PsiReference>() {
public boolean process(final PsiReference reference) {
final PsiElement element = reference.getElement();
if (element instanceof PsiJavaCodeReferenceElement) {
final PsiImportStaticStatement staticImportStatement =
PsiTreeUtil.getParentOfType(element, PsiImportStaticStatement.class);
if (staticImportStatement != null) {
usages.add(
new ReplaceStaticImportUsageInfo(staticImportStatement, myTargetClasses));
} else {
final PsiImportStatement importStatement =
PsiTreeUtil.getParentOfType(element, PsiImportStatement.class);
if (importStatement != null) {
usages.add(new RemoveImportUsageInfo(importStatement));
} else {
final PsiElement parent = element.getParent();
if (parent instanceof PsiReferenceList) {
final PsiElement pparent = parent.getParent();
if (pparent instanceof PsiClass) {
final PsiClass inheritor = (PsiClass) pparent;
if (parent.equals(inheritor.getExtendsList())
|| parent.equals(inheritor.getImplementsList())) {
usages.add(
new ReplaceExtendsListUsageInfo(
(PsiJavaCodeReferenceElement) element,
mySuperClass,
inheritor));
}
}
} else {
final PsiClass targetClass = myTargetClasses[0];
final PsiClassType targetClassType =
elementFactory.createType(
targetClass,
TypeConversionUtil.getSuperClassSubstitutor(
mySuperClass, targetClass, PsiSubstitutor.EMPTY));
if (parent instanceof PsiTypeElement) {
final PsiType superClassType = ((PsiTypeElement) parent).getType();
PsiSubstitutor subst =
getSuperClassSubstitutor(
superClassType, targetClassType, resolveHelper, targetClass);
usages.add(
new ReplaceWithSubtypeUsageInfo(
((PsiTypeElement) parent),
elementFactory.createType(targetClass, subst),
myTargetClasses));
} else if (parent instanceof PsiNewExpression) {
final PsiClassType newType =
elementFactory.createType(
targetClass,
getSuperClassSubstitutor(
((PsiNewExpression) parent).getType(),
targetClassType,
resolveHelper,
targetClass));
usages.add(
new ReplaceConstructorUsageInfo(
((PsiNewExpression) parent), newType, myTargetClasses));
} else if (parent instanceof PsiJavaCodeReferenceElement) {
usages.add(
new ReplaceReferenceUsageInfo(
((PsiJavaCodeReferenceElement) parent).getQualifier(),
myTargetClasses));
}
}
}
}
}
return true;
}
});
for (PsiClass targetClass : myTargetClasses) {
for (MemberInfo memberInfo : myMemberInfos) {
final PsiMember member = memberInfo.getMember();
for (PsiReference reference : ReferencesSearch.search(member, member.getUseScope(), true)) {
final PsiElement element = reference.getElement();
if (element instanceof PsiReferenceExpression
&& ((PsiReferenceExpression) element).getQualifierExpression()
instanceof PsiSuperExpression
&& PsiTreeUtil.isAncestor(targetClass, element, false)) {
usages.add(new RemoveQualifierUsageInfo((PsiReferenceExpression) element));
}
}
}
final PsiMethod[] superConstructors = mySuperClass.getConstructors();
for (PsiMethod constructor : targetClass.getConstructors()) {
final PsiCodeBlock constrBody = constructor.getBody();
LOG.assertTrue(constrBody != null);
final PsiStatement[] statements = constrBody.getStatements();
if (statements.length > 0) {
final PsiStatement firstConstrStatement = statements[0];
if (firstConstrStatement instanceof PsiExpressionStatement) {
final PsiExpression expression =
((PsiExpressionStatement) firstConstrStatement).getExpression();
if (expression instanceof PsiMethodCallExpression) {
final PsiReferenceExpression methodExpression =
((PsiMethodCallExpression) expression).getMethodExpression();
if (methodExpression.getText().equals(PsiKeyword.SUPER)) {
final PsiMethod superConstructor =
((PsiMethodCallExpression) expression).resolveMethod();
if (superConstructor != null && superConstructor.getBody() != null) {
usages.add(new InlineSuperCallUsageInfo((PsiMethodCallExpression) expression));
continue;
}
}
}
}
}
// insert implicit call to super
for (PsiMethod superConstructor : superConstructors) {
if (superConstructor.getParameterList().getParametersCount() == 0) {
final PsiExpression expression =
JavaPsiFacade.getElementFactory(myProject)
.createExpressionFromText("super()", constructor);
usages.add(
new InlineSuperCallUsageInfo((PsiMethodCallExpression) expression, constrBody));
}
}
}
if (targetClass.getConstructors().length == 0) {
// copy default constructor
for (PsiMethod superConstructor : superConstructors) {
if (superConstructor.getParameterList().getParametersCount() == 0) {
usages.add(new CopyDefaultConstructorUsageInfo(targetClass, superConstructor));
break;
}
}
}
}
}
private void replaceInnerTypeUsages() {
final JavaPsiFacade facade = JavaPsiFacade.getInstance(myProject);
final PsiElementFactory elementFactory = facade.getElementFactory();
final PsiResolveHelper resolveHelper = facade.getResolveHelper();
final Map<UsageInfo, PsiElement> replacementMap = new HashMap<UsageInfo, PsiElement>();
for (final PsiClass targetClass : myTargetClasses) {
final PsiSubstitutor superClassSubstitutor =
TypeConversionUtil.getSuperClassSubstitutor(
mySuperClass, targetClass, PsiSubstitutor.EMPTY);
final PsiClassType targetClassType =
elementFactory.createType(targetClass, superClassSubstitutor);
targetClass.accept(
new JavaRecursiveElementWalkingVisitor() {
@Override
public void visitTypeElement(final PsiTypeElement typeElement) {
super.visitTypeElement(typeElement);
final PsiType superClassType = typeElement.getType();
if (PsiUtil.resolveClassInType(superClassType) == mySuperClass) {
PsiSubstitutor subst =
getSuperClassSubstitutor(
superClassType, targetClassType, resolveHelper, targetClass);
replacementMap.put(
new UsageInfo(typeElement),
elementFactory.createTypeElement(
elementFactory.createType(targetClass, subst)));
}
}
@Override
public void visitNewExpression(final PsiNewExpression expression) {
super.visitNewExpression(expression);
final PsiType superClassType = expression.getType();
if (PsiUtil.resolveClassInType(superClassType) == mySuperClass) {
PsiSubstitutor subst =
getSuperClassSubstitutor(
superClassType, targetClassType, resolveHelper, targetClass);
try {
replacementMap.put(
new UsageInfo(expression),
elementFactory.createExpressionFromText(
"new "
+ elementFactory.createType(targetClass, subst).getCanonicalText()
+ expression.getArgumentList().getText(),
expression));
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
}
});
}
try {
for (Map.Entry<UsageInfo, PsiElement> elementEntry : replacementMap.entrySet()) {
final PsiElement element = elementEntry.getKey().getElement();
if (element != null) {
element.replace(elementEntry.getValue());
}
}
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}