public static boolean nameCanBeImported(@NotNull String fqName, @NotNull PsiElement context) {
final PsiClass containingClass = PsiTreeUtil.getParentOfType(context, PsiClass.class);
if (containingClass != null) {
if (fqName.equals(containingClass.getQualifiedName())) {
return true;
}
final String shortName = ClassUtil.extractClassName(fqName);
final PsiClass[] innerClasses = containingClass.getAllInnerClasses();
for (PsiClass innerClass : innerClasses) {
if (innerClass.hasModifierProperty(PsiModifier.PRIVATE)) {
continue;
}
if (innerClass.hasModifierProperty(PsiModifier.PACKAGE_LOCAL)) {
if (!ClassUtils.inSamePackage(innerClass, containingClass)) {
continue;
}
}
final String className = innerClass.getName();
if (shortName.equals(className)) {
return false;
}
}
PsiField field = containingClass.findFieldByName(shortName, false);
if (field != null) {
return false;
}
field = containingClass.findFieldByName(shortName, true);
if (field != null
&& PsiUtil.isAccessible(containingClass.getProject(), field, containingClass, null)) {
return false;
}
}
final PsiJavaFile file = PsiTreeUtil.getParentOfType(context, PsiJavaFile.class);
if (file == null) {
return false;
}
if (hasExactImportConflict(fqName, file)) {
return false;
}
if (hasOnDemandImportConflict(fqName, file, true)) {
return false;
}
if (containsConflictingReference(file, fqName)) {
return false;
}
if (containsConflictingClass(fqName, file)) {
return false;
}
return !containsConflictingClassName(fqName, file);
}
private static boolean nameCanBeStaticallyImported(
@NotNull String fqName, @NotNull String memberName, @NotNull PsiElement context) {
final PsiClass containingClass = PsiTreeUtil.getParentOfType(context, PsiClass.class);
if (containingClass == null) {
return false;
}
if (InheritanceUtil.isInheritor(containingClass, fqName)) {
return true;
}
final PsiField field = containingClass.findFieldByName(memberName, true);
if (field != null) {
return false;
}
final PsiMethod[] methods = containingClass.findMethodsByName(memberName, true);
if (methods.length > 0) {
return false;
}
return !hasOnDemandImportStaticConflict(fqName, memberName, context, true)
&& !hasExactImportStaticConflict(fqName, memberName, context);
}
private static boolean hasOnDemandImportStaticConflict(
String fqName, String memberName, PsiElement context, boolean strict) {
final PsiFile file = context.getContainingFile();
if (!(file instanceof PsiJavaFile)) {
return false;
}
final PsiJavaFile javaFile = (PsiJavaFile) file;
final PsiImportList importList = javaFile.getImportList();
if (importList == null) {
return false;
}
final PsiImportStaticStatement[] importStaticStatements =
importList.getImportStaticStatements();
for (PsiImportStaticStatement importStaticStatement : importStaticStatements) {
if (!importStaticStatement.isOnDemand()) {
continue;
}
final PsiClass targetClass = importStaticStatement.resolveTargetClass();
if (targetClass == null) {
continue;
}
final String name = targetClass.getQualifiedName();
if (fqName.equals(name)) {
continue;
}
final PsiField field = targetClass.findFieldByName(memberName, true);
if (field != null && (!strict || memberReferenced(field, javaFile))) {
return true;
}
final PsiMethod[] methods = targetClass.findMethodsByName(memberName, true);
if (methods.length > 0 && (!strict || membersReferenced(methods, javaFile))) {
return true;
}
}
return false;
}
private static void checkSuperclassMembers(
PsiClass superClass,
MemberInfoBase<? extends PsiMember>[] infos,
MultiMap<PsiElement, String> conflictsList) {
for (MemberInfoBase<? extends PsiMember> info : infos) {
PsiMember member = info.getMember();
boolean isConflict = false;
if (member instanceof PsiField) {
String name = member.getName();
isConflict = superClass.findFieldByName(name, false) != null;
} else if (member instanceof PsiMethod) {
PsiSubstitutor superSubstitutor =
TypeConversionUtil.getSuperClassSubstitutor(
superClass, member.getContainingClass(), PsiSubstitutor.EMPTY);
MethodSignature signature = ((PsiMethod) member).getSignature(superSubstitutor);
final PsiMethod superClassMethod =
MethodSignatureUtil.findMethodBySignature(superClass, signature, false);
isConflict = superClassMethod != null;
}
if (isConflict) {
String message =
RefactoringBundle.message(
"0.already.contains.a.1",
RefactoringUIUtil.getDescription(superClass, false),
RefactoringUIUtil.getDescription(member, false));
message = CommonRefactoringUtil.capitalize(message);
conflictsList.putValue(superClass, message);
}
if (member instanceof PsiMethod) {
final PsiMethod method = (PsiMethod) member;
final PsiModifierList modifierList = method.getModifierList();
if (!modifierList.hasModifierProperty(PsiModifier.PRIVATE)) {
for (PsiClass subClass : ClassInheritorsSearch.search(superClass)) {
if (method.getContainingClass() != subClass) {
MethodSignature signature =
((PsiMethod) member)
.getSignature(
TypeConversionUtil.getSuperClassSubstitutor(
superClass, subClass, PsiSubstitutor.EMPTY));
final PsiMethod wouldBeOverriden =
MethodSignatureUtil.findMethodBySignature(subClass, signature, false);
if (wouldBeOverriden != null
&& VisibilityUtil.compare(
VisibilityUtil.getVisibilityModifier(wouldBeOverriden.getModifierList()),
VisibilityUtil.getVisibilityModifier(modifierList))
> 0) {
conflictsList.putValue(
wouldBeOverriden,
CommonRefactoringUtil.capitalize(
RefactoringUIUtil.getDescription(method, true)
+ " in super class would clash with local method from "
+ RefactoringUIUtil.getDescription(subClass, true)));
}
}
}
}
}
}
}
private static boolean processDeclarationsInClassNotCached(
@NotNull PsiClass aClass,
@NotNull PsiScopeProcessor processor,
@NotNull ResolveState state,
@Nullable Set<PsiClass> visited,
PsiElement last,
@NotNull PsiElement place,
boolean isRaw,
@NotNull LanguageLevel languageLevel) {
if (visited == null) visited = new THashSet<PsiClass>();
if (!visited.add(aClass)) return true;
processor.handleEvent(PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, aClass);
final ElementClassHint classHint = processor.getHint(ElementClassHint.KEY);
final NameHint nameHint = processor.getHint(NameHint.KEY);
if (classHint == null || classHint.shouldProcess(ElementClassHint.DeclarationKind.FIELD)) {
if (nameHint != null) {
final PsiField fieldByName = aClass.findFieldByName(nameHint.getName(state), false);
if (fieldByName != null && !processor.execute(fieldByName, state)) return false;
} else {
final PsiField[] fields = aClass.getFields();
for (final PsiField field : fields) {
if (!processor.execute(field, state)) return false;
}
}
}
PsiElementFactory factory = JavaPsiFacade.getInstance(aClass.getProject()).getElementFactory();
if (classHint == null || classHint.shouldProcess(ElementClassHint.DeclarationKind.METHOD)) {
PsiSubstitutor baseSubstitutor = state.get(PsiSubstitutor.KEY);
final PsiMethod[] methods =
nameHint != null
? aClass.findMethodsByName(nameHint.getName(state), false)
: aClass.getMethods();
for (final PsiMethod method : methods) {
PsiSubstitutor finalSubstitutor = checkRaw(isRaw, factory, method, baseSubstitutor);
ResolveState methodState =
finalSubstitutor == baseSubstitutor
? state
: state.put(PsiSubstitutor.KEY, finalSubstitutor);
if (!processor.execute(method, methodState)) return false;
}
}
if (classHint == null || classHint.shouldProcess(ElementClassHint.DeclarationKind.CLASS)) {
if (last != null && last.getParent() == aClass) {
// Parameters
final PsiTypeParameterList list = aClass.getTypeParameterList();
if (list != null
&& !list.processDeclarations(processor, ResolveState.initial(), last, place))
return false;
}
if (!(last instanceof PsiReferenceList) && !(last instanceof PsiModifierList)) {
// Inners
if (nameHint != null) {
final PsiClass inner = aClass.findInnerClassByName(nameHint.getName(state), false);
if (inner != null) {
if (!processor.execute(inner, state)) return false;
}
} else {
final PsiClass[] inners = aClass.getInnerClasses();
for (final PsiClass inner : inners) {
if (!processor.execute(inner, state)) return false;
}
}
}
}
return last instanceof PsiReferenceList
|| processSuperTypes(
aClass, processor, visited, last, place, state, isRaw, factory, languageLevel);
}
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;
}
