@Nullable
public static PsiClass getSuperClass(@NotNull PsiClass psiClass) {
PsiManager manager = psiClass.getManager();
GlobalSearchScope resolveScope = psiClass.getResolveScope();
final JavaPsiFacade facade = JavaPsiFacade.getInstance(manager.getProject());
if (psiClass.isInterface()) {
return facade.findClass(CommonClassNames.JAVA_LANG_OBJECT, resolveScope);
}
if (psiClass.isEnum()) {
return facade.findClass(CommonClassNames.JAVA_LANG_ENUM, resolveScope);
}
if (psiClass instanceof PsiAnonymousClass) {
PsiClassType baseClassReference = ((PsiAnonymousClass) psiClass).getBaseClassType();
PsiClass baseClass = baseClassReference.resolve();
if (baseClass == null || baseClass.isInterface())
return facade.findClass(CommonClassNames.JAVA_LANG_OBJECT, resolveScope);
return baseClass;
}
if (CommonClassNames.JAVA_LANG_OBJECT.equals(psiClass.getQualifiedName())) return null;
final PsiClassType[] referenceElements = psiClass.getExtendsListTypes();
if (referenceElements.length == 0)
return facade.findClass(CommonClassNames.JAVA_LANG_OBJECT, resolveScope);
PsiClass psiResoved = referenceElements[0].resolve();
return psiResoved == null
? facade.findClass(CommonClassNames.JAVA_LANG_OBJECT, resolveScope)
: psiResoved;
}
public static boolean isAssignableFrom(
final String baseQualifiedName, ReferenceType checkedType) {
if (CommonClassNames.JAVA_LANG_OBJECT.equals(baseQualifiedName)) {
return true;
}
return getSuperClass(baseQualifiedName, checkedType) != null;
}
/**
* Creates a new {@link ClassElement} object.
*
* @param clazz class information.
* @return a new {@link ClassElement} object.
*/
public static ClassElement newClassElement(PsiClass clazz) {
ClassElement ce = new ClassElement();
// name
ce.setName(clazz.getName());
ce.setQualifiedName(clazz.getQualifiedName());
// super
PsiClass superClass = clazz.getSuperClass();
if (superClass != null
&& !CommonClassNames.JAVA_LANG_OBJECT.equals(superClass.getQualifiedName())) {
ce.setSuperName(superClass.getName());
}
// interfaces
ce.setImplementNames(PsiAdapter.getImplementsClassnames(clazz));
// other
ce.setEnum(clazz.isEnum());
ce.setDeprecated(clazz.isDeprecated());
ce.setException(PsiAdapter.isExceptionClass(clazz));
ce.setAbstract(clazz.hasModifierProperty(PsiModifier.ABSTRACT));
ce.setTypeParams(clazz.getTypeParameters().length);
return ce;
}
@NotNull
public static PsiElement[] findSuperElements(@NotNull PsiElement element) {
if (element instanceof PsiClass) {
PsiClass aClass = (PsiClass) element;
List<PsiClass> allSupers = new ArrayList<>(Arrays.asList(aClass.getSupers()));
for (Iterator<PsiClass> iterator = allSupers.iterator(); iterator.hasNext(); ) {
PsiClass superClass = iterator.next();
if (CommonClassNames.JAVA_LANG_OBJECT.equals(superClass.getQualifiedName()))
iterator.remove();
}
return allSupers.toArray(new PsiClass[allSupers.size()]);
}
if (element instanceof PsiMethod) {
PsiMethod method = (PsiMethod) element;
if (method.isConstructor()) {
PsiMethod constructorInSuper = PsiSuperMethodUtil.findConstructorInSuper(method);
if (constructorInSuper != null) {
return new PsiMethod[] {constructorInSuper};
}
} else {
PsiMethod[] superMethods = method.findSuperMethods(false);
if (superMethods.length == 0) {
PsiMethod superMethod = getSiblingInheritedViaSubClass(method);
if (superMethod != null) {
superMethods = new PsiMethod[] {superMethod};
}
}
return superMethods;
}
}
return PsiElement.EMPTY_ARRAY;
}
private int substituteToTypeParameters(
PsiTypeElement typeElement,
PsiTypeElement inplaceTypeElement,
PsiType[] paramVals,
PsiTypeParameter[] params,
TemplateBuilder builder,
PsiSubstitutor rawingSubstitutor,
boolean toplevel) {
PsiType type = inplaceTypeElement.getType();
List<PsiType> types = new ArrayList<>();
for (int i = 0; i < paramVals.length; i++) {
PsiType val = paramVals[i];
if (val == null) return SUBSTITUTED_NONE;
if (type.equals(val)) {
types.add(myFactory.createType(params[i]));
}
}
if (!types.isEmpty()) {
Project project = typeElement.getProject();
PsiType substituted = rawingSubstitutor.substitute(type);
if (!CommonClassNames.JAVA_LANG_OBJECT.equals(substituted.getCanonicalText())
&& (toplevel || substituted.equals(type))) {
types.add(substituted);
}
builder.replaceElement(
typeElement,
new TypeExpression(project, types.toArray(PsiType.createArray(types.size()))));
return toplevel ? SUBSTITUTED_IN_REF : SUBSTITUTED_IN_PARAMETERS;
}
boolean substituted = false;
PsiJavaCodeReferenceElement ref = typeElement.getInnermostComponentReferenceElement();
PsiJavaCodeReferenceElement inplaceRef =
inplaceTypeElement.getInnermostComponentReferenceElement();
if (ref != null) {
LOG.assertTrue(inplaceRef != null);
PsiTypeElement[] innerTypeElements = ref.getParameterList().getTypeParameterElements();
PsiTypeElement[] inplaceInnerTypeElements =
inplaceRef.getParameterList().getTypeParameterElements();
for (int i = 0; i < innerTypeElements.length; i++) {
substituted |=
substituteToTypeParameters(
innerTypeElements[i],
inplaceInnerTypeElements[i],
paramVals,
params,
builder,
rawingSubstitutor,
false)
!= SUBSTITUTED_NONE;
}
}
return substituted ? SUBSTITUTED_IN_PARAMETERS : SUBSTITUTED_NONE;
}
private static boolean canHaveSiblingSuper(PsiMethod method, PsiClass containingClass) {
return containingClass != null
&& PsiUtil.canBeOverriden(method)
&& !method.hasModifierProperty(PsiModifier.ABSTRACT)
&& !method.hasModifierProperty(PsiModifier.NATIVE)
&& method.hasModifierProperty(PsiModifier.PUBLIC)
&& !containingClass.isInterface()
&& !CommonClassNames.JAVA_LANG_OBJECT.equals(containingClass.getQualifiedName());
}
private static boolean canHaveSuperMethod(
PsiMethod method, boolean checkAccess, boolean allowStaticMethod) {
if (method.isConstructor()) return false;
if (!allowStaticMethod && method.hasModifierProperty(PsiModifier.STATIC)) return false;
if (checkAccess && method.hasModifierProperty(PsiModifier.PRIVATE)) return false;
PsiClass parentClass = method.getContainingClass();
return parentClass != null
&& !CommonClassNames.JAVA_LANG_OBJECT.equals(parentClass.getQualifiedName());
}
private static boolean overridesObjectOrGroovyObject(PsiMethod method) {
final String name = method.getName();
if (!OBJECT_METHODS.contains(name) && !GROOVY_OBJECT_METHODS.contains(name)) return false;
final PsiMethod superMethod = PsiSuperMethodImplUtil.findDeepestSuperMethod(method);
if (superMethod == null) return false;
final PsiClass superClass = superMethod.getContainingClass();
if (superClass == null) return false;
final String qname = superClass.getQualifiedName();
return CommonClassNames.JAVA_LANG_OBJECT.equals(qname)
|| GroovyCommonClassNames.GROOVY_OBJECT.equals(qname);
}
private static void processClassInner(
PsiClassType type,
PsiSubstitutor superClassSubstitutor,
boolean shouldProcessDeprecated,
List<PsiMethod> result,
GrTypeDefinition classToDelegateTo,
Set<PsiClass> processedWithoutDeprecated,
Set<PsiClass> processedAll,
boolean keepParameterAnnotationsNew) {
final PsiClassType.ClassResolveResult resolveResult = type.resolveGenerics();
final PsiClass psiClass = resolveResult.getElement();
if (psiClass == null) return;
final String qname = psiClass.getQualifiedName();
if (CommonClassNames.JAVA_LANG_OBJECT.equals(qname)) return;
if (GroovyCommonClassNames.GROOVY_OBJECT.equals(qname)) return;
if (GroovyCommonClassNames.GROOVY_OBJECT_SUPPORT.equals(qname)) return;
final PsiSubstitutor substitutor =
TypesUtil.composeSubstitutors(resolveResult.getSubstitutor(), superClassSubstitutor);
if (processedAll.contains(psiClass)) return;
if (!shouldProcessDeprecated && processedWithoutDeprecated.contains(psiClass)) return;
if (shouldProcessDeprecated) {
processedAll.add(psiClass);
} else {
processedWithoutDeprecated.add(psiClass);
}
collectMethods(
psiClass,
substitutor,
shouldProcessDeprecated,
classToDelegateTo,
result,
keepParameterAnnotationsNew);
process(
psiClass,
substitutor,
shouldProcessDeprecated,
processedWithoutDeprecated,
processedAll,
result,
classToDelegateTo,
keepParameterAnnotationsNew);
}
private boolean hasGoodToString(PsiClass aClass) {
final PsiMethod[] methods =
aClass.findMethodsByName(HardcodedMethodConstants.TO_STRING, true);
for (PsiMethod method : methods) {
final PsiClass containingClass = method.getContainingClass();
if (containingClass == null) {
continue;
}
final String name = containingClass.getQualifiedName();
if (CommonClassNames.JAVA_LANG_OBJECT.equals(name)) {
continue;
}
final PsiParameterList parameterList = method.getParameterList();
if (parameterList.getParametersCount() == 0) {
return true;
}
}
return false;
}
private static boolean isSuperMethod(
PsiClass aClass,
HierarchicalMethodSignature hierarchicalMethodSignature,
HierarchicalMethodSignature superSignatureHierarchical) {
PsiMethod superMethod = superSignatureHierarchical.getMethod();
PsiClass superClass = superMethod.getContainingClass();
PsiClass containingClass = hierarchicalMethodSignature.getMethod().getContainingClass();
if (!superMethod.isConstructor()) {
if (!aClass.equals(superClass)) {
if (PsiUtil.isAccessible(aClass.getProject(), superMethod, aClass, aClass)) {
if (MethodSignatureUtil.isSubsignature(
superSignatureHierarchical, hierarchicalMethodSignature)) {
if (superClass != null) {
if (superClass.isInterface()
|| CommonClassNames.JAVA_LANG_OBJECT.equals(superClass.getQualifiedName())) {
if (superMethod.hasModifierProperty(PsiModifier.DEFAULT)
|| hierarchicalMethodSignature
.getMethod()
.hasModifierProperty(PsiModifier.DEFAULT)) {
return !InheritanceUtil.isInheritorOrSelf(superClass, containingClass, true);
}
return true;
}
if (containingClass != null) {
if (containingClass.isInterface()) {
return false;
}
if (!aClass.isInterface()
&& !InheritanceUtil.isInheritorOrSelf(superClass, containingClass, true)) {
return true;
}
}
}
}
}
}
}
return false;
}
@NotNull
@Override
public PsiClassType createTypeByFQClassName(
@NotNull final String qName, @NotNull final GlobalSearchScope resolveScope) {
if (CommonClassNames.JAVA_LANG_OBJECT.equals(qName)) {
PsiClassType cachedObjectType = myCachedObjectType.get(resolveScope);
if (cachedObjectType != null) {
return cachedObjectType;
}
PsiClass aClass =
JavaPsiFacade.getInstance(myManager.getProject())
.findClass(CommonClassNames.JAVA_LANG_OBJECT, resolveScope);
if (aClass != null) {
cachedObjectType = new PsiImmediateClassType(aClass, PsiSubstitutor.EMPTY);
cachedObjectType = myCachedObjectType.cacheOrGet(resolveScope, cachedObjectType);
return cachedObjectType;
}
}
return new PsiClassReferenceType(
createReferenceElementByFQClassName(qName, resolveScope), null);
}
@Nullable
private PsiType getSuperType(PsiClass aClass) {
if (aClass.isInterface()) {
return PsiType.getJavaLangObject(getManager(), getResolveScope());
}
if (aClass instanceof GrAnonymousClassDefinition) {
final PsiClassType baseClassType = ((GrAnonymousClassDefinition) aClass).getBaseClassType();
final PsiClass psiClass = baseClassType.resolve();
if (psiClass != null && !psiClass.isInterface()) {
return baseClassType;
}
return PsiType.getJavaLangObject(getManager(), getResolveScope());
}
if (CommonClassNames.JAVA_LANG_OBJECT.equals(aClass.getQualifiedName())) return null;
PsiClassType[] superTypes = aClass.getExtendsListTypes();
if (superTypes.length == 0) {
return PsiType.getJavaLangObject(getManager(), getResolveScope());
}
return superTypes[0];
}
public static HighlightInfo checkClashesWithSuperMethods(@NotNull PsiAnnotationMethod psiMethod) {
final PsiIdentifier nameIdentifier = psiMethod.getNameIdentifier();
if (nameIdentifier != null) {
final PsiMethod[] methods = psiMethod.findDeepestSuperMethods();
for (PsiMethod method : methods) {
final PsiClass containingClass = method.getContainingClass();
if (containingClass != null) {
final String qualifiedName = containingClass.getQualifiedName();
if (CommonClassNames.JAVA_LANG_OBJECT.equals(qualifiedName)
|| CommonClassNames.JAVA_LANG_ANNOTATION_ANNOTATION.equals(qualifiedName)) {
return HighlightInfo.newHighlightInfo(HighlightInfoType.ERROR)
.range(nameIdentifier)
.descriptionAndTooltip(
"@interface member clashes with '"
+ JavaHighlightUtil.formatMethod(method)
+ "' in "
+ HighlightUtil.formatClass(containingClass))
.create();
}
}
}
}
return null;
}
private static void addInheritorClassLiterals(
final PsiFile context,
Condition<String> shortNameCondition,
final PsiType classParameter,
final Consumer<LookupElement> result,
PrefixMatcher matcher) {
final String canonicalText = classParameter.getCanonicalText();
if (CommonClassNames.JAVA_LANG_OBJECT.equals(canonicalText)
&& StringUtil.isEmpty(matcher.getPrefix())) {
return;
}
CodeInsightUtil.processSubTypes(
classParameter,
context,
true,
shortNameCondition,
new Consumer<PsiType>() {
@Override
public void consume(PsiType type) {
addClassLiteralLookupElement(type, result, context);
}
});
}
@NotNull
public static PsiClassType[] getSuperTypes(@NotNull PsiClass psiClass) {
if (psiClass instanceof PsiAnonymousClass) {
PsiClassType baseClassType = ((PsiAnonymousClass) psiClass).getBaseClassType();
PsiClass baseClass = baseClassType.resolve();
if (baseClass == null || !baseClass.isInterface()) {
return new PsiClassType[] {baseClassType};
} else {
PsiClassType objectType =
PsiType.getJavaLangObject(psiClass.getManager(), psiClass.getResolveScope());
return new PsiClassType[] {objectType, baseClassType};
}
}
PsiClassType[] extendsTypes = psiClass.getExtendsListTypes();
PsiClassType[] implementsTypes = psiClass.getImplementsListTypes();
boolean hasExtends = extendsTypes.length != 0;
int extendsListLength = extendsTypes.length + (hasExtends ? 0 : 1);
PsiClassType[] result = new PsiClassType[extendsListLength + implementsTypes.length];
System.arraycopy(extendsTypes, 0, result, 0, extendsTypes.length);
if (!hasExtends) {
if (CommonClassNames.JAVA_LANG_OBJECT.equals(psiClass.getQualifiedName())) {
return PsiClassType.EMPTY_ARRAY;
}
PsiManager manager = psiClass.getManager();
PsiClassType objectType = PsiType.getJavaLangObject(manager, psiClass.getResolveScope());
result[0] = objectType;
}
System.arraycopy(implementsTypes, 0, result, extendsListLength, implementsTypes.length);
for (int i = 0; i < result.length; i++) {
PsiClassType type = result[i];
result[i] = (PsiClassType) PsiUtil.captureToplevelWildcards(type, psiClass);
}
return result;
}
@Nullable
private PsiType getNominalTypeInner(PsiElement resolved) {
if (resolved == null && !"class".equals(getReferenceName())) {
resolved = resolve();
}
if (resolved instanceof PsiClass) {
final PsiElementFactory factory = JavaPsiFacade.getInstance(getProject()).getElementFactory();
if (PsiUtil.isInstanceThisRef(this)) {
final PsiClassType categoryType = GdkMethodUtil.getCategoryType((PsiClass) resolved);
if (categoryType != null) {
return categoryType;
} else {
return factory.createType((PsiClass) resolved);
}
}
if (getParent() instanceof GrReferenceExpression || PsiUtil.isSuperReference(this)) {
return factory.createType((PsiClass) resolved);
} else {
return TypesUtil.createJavaLangClassType(
factory.createType((PsiClass) resolved), getProject(), getResolveScope());
}
}
if (resolved instanceof GrVariable) {
return ((GrVariable) resolved).getDeclaredType();
}
if (resolved instanceof PsiVariable) {
return ((PsiVariable) resolved).getType();
}
if (resolved instanceof PsiMethod) {
PsiMethod method = (PsiMethod) resolved;
if (PropertyUtil.isSimplePropertySetter(method)
&& !method.getName().equals(getReferenceName())) {
return method.getParameterList().getParameters()[0].getType();
}
// 'class' property with explicit generic
PsiClass containingClass = method.getContainingClass();
if (containingClass != null
&& CommonClassNames.JAVA_LANG_OBJECT.equals(containingClass.getQualifiedName())
&& "getClass".equals(method.getName())) {
return TypesUtil.createJavaLangClassType(
GrReferenceResolveUtil.getQualifierType(this), getProject(), getResolveScope());
}
return PsiUtil.getSmartReturnType(method);
}
if (resolved instanceof GrReferenceExpression) {
PsiElement parent = resolved.getParent();
if (parent instanceof GrAssignmentExpression) {
GrAssignmentExpression assignment = (GrAssignmentExpression) parent;
if (resolved.equals(assignment.getLValue())) {
GrExpression rValue = assignment.getRValue();
if (rValue != null) {
PsiType rType = rValue.getType();
if (rType != null) {
return rType;
}
}
}
}
}
if (resolved == null) {
final PsiType fromClassRef = getTypeFromClassRef(this);
if (fromClassRef != null) {
return fromClassRef;
}
final PsiType fromMapAccess = getTypeFromMapAccess(this);
if (fromMapAccess != null) {
return fromMapAccess;
}
final PsiType fromSpreadOperator = getTypeFromSpreadOperator(this);
if (fromSpreadOperator != null) {
return fromSpreadOperator;
}
}
return null;
}
@SuppressWarnings({"HardCodedStringLiteral"})
private static String generateClassInfo(PsiClass aClass) {
StringBuilder buffer = new StringBuilder();
GroovyFile file = (GroovyFile) aClass.getContainingFile();
String packageName = file.getPackageName();
if (packageName.length() > 0) {
buffer.append(packageName).append("\n");
}
final String classString =
aClass.isInterface()
? "interface"
: aClass instanceof PsiTypeParameter
? "type parameter"
: aClass.isEnum() ? "enum" : "class";
buffer.append(classString).append(" ").append(aClass.getName());
if (aClass.hasTypeParameters()) {
PsiTypeParameter[] typeParameters = aClass.getTypeParameters();
buffer.append("<");
for (int i = 0; i < typeParameters.length; i++) {
if (i > 0) buffer.append(", ");
PsiTypeParameter tp = typeParameters[i];
buffer.append(tp.getName());
PsiClassType[] refs = tp.getExtendsListTypes();
if (refs.length > 0) {
buffer.append(" extends ");
for (int j = 0; j < refs.length; j++) {
if (j > 0) buffer.append(" & ");
appendTypeString(buffer, refs[j], aClass);
}
}
}
buffer.append(">");
}
PsiClassType[] refs = aClass.getExtendsListTypes();
if (refs.length > 0
|| !aClass.isInterface()
&& !CommonClassNames.JAVA_LANG_OBJECT.equals(aClass.getQualifiedName())) {
buffer.append(" extends ");
if (refs.length == 0) {
buffer.append("Object");
} else {
for (int i = 0; i < refs.length; i++) {
if (i > 0) buffer.append(", ");
appendTypeString(buffer, refs[i], aClass);
}
}
}
refs = aClass.getImplementsListTypes();
if (refs.length > 0) {
buffer.append("\nimplements ");
for (int i = 0; i < refs.length; i++) {
if (i > 0) buffer.append(", ");
appendTypeString(buffer, refs[i], aClass);
}
}
return buffer.toString();
}
protected void checkSameSignatures(@NotNull List<CandidateInfo> conflicts) {
// candidates should go in order of class hierarchy traversal
// in order for this to work
Map<MethodSignature, CandidateInfo> signatures =
new THashMap<MethodSignature, CandidateInfo>(conflicts.size());
Set<PsiMethod> superMethods = new HashSet<PsiMethod>();
for (CandidateInfo conflict : conflicts) {
final PsiMethod method = ((MethodCandidateInfo) conflict).getElement();
for (HierarchicalMethodSignature methodSignature :
method.getHierarchicalMethodSignature().getSuperSignatures()) {
final PsiMethod superMethod = methodSignature.getMethod();
final PsiClass aClass = superMethod.getContainingClass();
if (aClass != null
&& !CommonClassNames.JAVA_LANG_OBJECT.equals(aClass.getQualifiedName())) {
superMethods.add(superMethod);
}
}
}
nextConflict:
for (int i = 0; i < conflicts.size(); i++) {
ProgressManager.checkCanceled();
CandidateInfo info = conflicts.get(i);
PsiMethod method = (PsiMethod) info.getElement();
if (!method.hasModifierProperty(PsiModifier.STATIC) && superMethods.contains(method)) {
conflicts.remove(i);
i--;
continue;
}
PsiClass class1 = method.getContainingClass();
PsiSubstitutor infoSubstitutor = ((MethodCandidateInfo) info).getSubstitutor(false);
MethodSignature signature = method.getSignature(infoSubstitutor);
CandidateInfo existing = signatures.get(signature);
if (existing == null) {
signatures.put(signature, info);
continue;
}
PsiMethod existingMethod = (PsiMethod) existing.getElement();
PsiClass existingClass = existingMethod.getContainingClass();
if (class1 != null
&& existingClass != null) { // prefer interface methods to methods from Object
if (class1.isInterface()
&& CommonClassNames.JAVA_LANG_OBJECT.equals(existingClass.getQualifiedName())) {
signatures.put(signature, info);
continue;
} else if (existingClass.isInterface()
&& CommonClassNames.JAVA_LANG_OBJECT.equals(class1.getQualifiedName())) {
conflicts.remove(info);
i--;
continue;
}
}
if (method == existingMethod) {
PsiElement scope1 = info.getCurrentFileResolveScope();
PsiElement scope2 = existing.getCurrentFileResolveScope();
if (scope1 instanceof PsiClass
&& scope2 instanceof PsiClass
&& PsiTreeUtil.isAncestor(scope1, scope2, true)
&& !existing
.isAccessible()) { // prefer methods from outer class to inaccessible base class
// methods
signatures.put(signature, info);
continue;
}
}
// filter out methods with incorrect inferred bounds (for unrelated methods only)
boolean existingTypeParamAgree = areTypeParametersAgree(existing);
boolean infoTypeParamAgree = areTypeParametersAgree(info);
if (existingTypeParamAgree
&& !infoTypeParamAgree
&& !PsiSuperMethodImplUtil.isSuperMethodSmart(method, existingMethod)) {
conflicts.remove(i);
i--;
continue;
}
if (!existingTypeParamAgree
&& infoTypeParamAgree
&& !PsiSuperMethodImplUtil.isSuperMethodSmart(existingMethod, method)) {
signatures.put(signature, info);
int index = conflicts.indexOf(existing);
conflicts.remove(index);
i--;
continue;
}
if (InheritanceUtil.isInheritorOrSelf(class1, existingClass, true)
|| InheritanceUtil.isInheritorOrSelf(existingClass, class1, true)) {
PsiParameter[] parameters = method.getParameterList().getParameters();
final PsiParameter[] existingParameters = existingMethod.getParameterList().getParameters();
for (int i1 = 0, parametersLength = parameters.length; i1 < parametersLength; i1++) {
if (parameters[i1].getType() instanceof PsiArrayType
&& !(existingParameters[i1].getType()
instanceof PsiArrayType)) { // prefer more specific type
signatures.put(signature, info);
continue nextConflict;
}
}
PsiType returnType1 = method.getReturnType();
PsiType returnType2 = existingMethod.getReturnType();
if (returnType1 != null && returnType2 != null) {
returnType1 = infoSubstitutor.substitute(returnType1);
returnType2 =
((MethodCandidateInfo) existing).getSubstitutor(false).substitute(returnType2);
if (!returnType1.equals(returnType2) && returnType1.isAssignableFrom(returnType2)) {
conflicts.remove(i);
i--;
continue;
}
}
// prefer derived class
signatures.put(signature, info);
} else {
final PsiMethodCallExpression methodCallExpression =
PsiTreeUtil.getParentOfType(myArgumentsList, PsiMethodCallExpression.class);
if (methodCallExpression != null) {
final PsiReferenceExpression expression = methodCallExpression.getMethodExpression();
final PsiExpression qualifierExpression = expression.getQualifierExpression();
PsiClass currentClass;
if (qualifierExpression != null) {
currentClass = PsiUtil.resolveClassInClassTypeOnly(qualifierExpression.getType());
} else {
currentClass = PsiTreeUtil.getParentOfType(expression, PsiClass.class);
}
if (currentClass != null && existingClass != null && class1 != null) {
final PsiSubstitutor eSubstitutor =
TypeConversionUtil.getMaybeSuperClassSubstitutor(
existingClass, currentClass, PsiSubstitutor.EMPTY, null);
final PsiSubstitutor cSubstitutor =
TypeConversionUtil.getMaybeSuperClassSubstitutor(
class1, currentClass, PsiSubstitutor.EMPTY, null);
if (eSubstitutor != null
&& cSubstitutor != null
&& MethodSignatureUtil.areSignaturesEqual(
existingMethod.getSignature(eSubstitutor), method.getSignature(cSubstitutor))) {
final PsiType returnType = eSubstitutor.substitute(existingMethod.getReturnType());
final PsiType returnType1 = cSubstitutor.substitute(method.getReturnType());
if (returnType != null && returnType1 != null && !returnType1.equals(returnType)) {
if (TypeConversionUtil.isAssignable(returnType, returnType1, false)) {
if (class1.isInterface() && !existingClass.isInterface()) continue;
conflicts.remove(existing);
} else {
if (!TypeConversionUtil.isAssignable(returnType1, returnType, false)) continue;
conflicts.remove(i);
}
i--;
break;
}
}
}
}
}
}
}
@Nullable
private PsiType getNominalTypeInner(@Nullable PsiElement resolved) {
if (resolved == null && !"class".equals(getReferenceName())) {
resolved = resolve();
}
if (resolved instanceof PsiClass) {
final PsiElementFactory factory = JavaPsiFacade.getInstance(getProject()).getElementFactory();
if (PsiUtil.isInstanceThisRef(this)) {
final PsiClassType categoryType = GdkMethodUtil.getCategoryType((PsiClass) resolved);
if (categoryType != null) {
return categoryType;
} else {
return factory.createType((PsiClass) resolved);
}
} else if (PsiUtil.isSuperReference(this)) {
PsiClass contextClass = PsiUtil.getContextClass(this);
if (GrTraitUtil.isTrait(contextClass)) {
PsiClassType[] extendsTypes = contextClass.getExtendsListTypes();
PsiClassType[] implementsTypes = contextClass.getImplementsListTypes();
PsiClassType[] superTypes =
ArrayUtil.mergeArrays(implementsTypes, extendsTypes, PsiClassType.ARRAY_FACTORY);
return PsiIntersectionType.createIntersection(ArrayUtil.reverseArray(superTypes));
}
return factory.createType((PsiClass) resolved);
}
if (getParent() instanceof GrReferenceExpression) {
return factory.createType((PsiClass) resolved);
} else {
return TypesUtil.createJavaLangClassType(
factory.createType((PsiClass) resolved), getProject(), getResolveScope());
}
}
if (resolved instanceof GrVariable) {
return ((GrVariable) resolved).getDeclaredType();
}
if (resolved instanceof PsiVariable) {
return ((PsiVariable) resolved).getType();
}
if (resolved instanceof PsiMethod) {
PsiMethod method = (PsiMethod) resolved;
if (PropertyUtil.isSimplePropertySetter(method)
&& !method.getName().equals(getReferenceName())) {
return method.getParameterList().getParameters()[0].getType();
}
// 'class' property with explicit generic
PsiClass containingClass = method.getContainingClass();
if (containingClass != null
&& CommonClassNames.JAVA_LANG_OBJECT.equals(containingClass.getQualifiedName())
&& "getClass".equals(method.getName())) {
return TypesUtil.createJavaLangClassType(
PsiImplUtil.getQualifierType(this), getProject(), getResolveScope());
}
return PsiUtil.getSmartReturnType(method);
}
if (resolved == null) {
final PsiType fromClassRef = getTypeFromClassRef(this);
if (fromClassRef != null) {
return fromClassRef;
}
final PsiType fromMapAccess = getTypeFromMapAccess(this);
if (fromMapAccess != null) {
return fromMapAccess;
}
final PsiType fromSpreadOperator = getTypeFromSpreadOperator(this);
if (fromSpreadOperator != null) {
return fromSpreadOperator;
}
}
return null;
}