private boolean isOverridden(
PsiClass inheritor, PsiMethod method, PsiMethod superMethod, PsiClass superInterface) {
// calculate substitutor of containingClass --> inheritor
PsiSubstitutor substitutor =
TypeConversionUtil.getSuperClassSubstitutor(
myContainingClass, inheritor, PsiSubstitutor.EMPTY);
// calculate substitutor of inheritor --> superInterface
substitutor =
TypeConversionUtil.getSuperClassSubstitutor(superInterface, inheritor, substitutor);
return MethodSignatureUtil.isSubsignature(
superMethod.getSignature(substitutor), method.getSignature(PsiSubstitutor.EMPTY));
}
private static void addDefaultConstructor(
JavaChangeInfo changeInfo, PsiClass aClass, final UsageInfo[] usages)
throws IncorrectOperationException {
if (!(aClass instanceof PsiAnonymousClass)) {
PsiElementFactory factory = JavaPsiFacade.getElementFactory(aClass.getProject());
PsiMethod defaultConstructor =
factory.createMethodFromText(aClass.getName() + "(){}", aClass);
defaultConstructor =
(PsiMethod)
CodeStyleManager.getInstance(aClass.getProject()).reformat(defaultConstructor);
defaultConstructor = (PsiMethod) aClass.add(defaultConstructor);
PsiUtil.setModifierProperty(
defaultConstructor, VisibilityUtil.getVisibilityModifier(aClass.getModifierList()), true);
addSuperCall(changeInfo, defaultConstructor, null, usages);
} else {
final PsiElement parent = aClass.getParent();
if (parent instanceof PsiNewExpression) {
final PsiExpressionList argumentList = ((PsiNewExpression) parent).getArgumentList();
final PsiClass baseClass = changeInfo.getMethod().getContainingClass();
final PsiSubstitutor substitutor =
TypeConversionUtil.getSuperClassSubstitutor(baseClass, aClass, PsiSubstitutor.EMPTY);
fixActualArgumentsList(argumentList, changeInfo, true, substitutor);
}
}
}
private static PsiSubstitutor calculateSubstitutor(
PsiMethod derivedMethod, PsiMethod baseMethod) {
PsiSubstitutor substitutor;
if (derivedMethod.getManager().areElementsEquivalent(derivedMethod, baseMethod)) {
substitutor = PsiSubstitutor.EMPTY;
} else {
final PsiClass baseClass = baseMethod.getContainingClass();
final PsiClass derivedClass = derivedMethod.getContainingClass();
if (baseClass != null
&& derivedClass != null
&& InheritanceUtil.isInheritorOrSelf(derivedClass, baseClass, true)) {
final PsiSubstitutor superClassSubstitutor =
TypeConversionUtil.getSuperClassSubstitutor(
baseClass, derivedClass, PsiSubstitutor.EMPTY);
final MethodSignature superMethodSignature = baseMethod.getSignature(superClassSubstitutor);
final MethodSignature methodSignature = derivedMethod.getSignature(PsiSubstitutor.EMPTY);
final PsiSubstitutor superMethodSubstitutor =
MethodSignatureUtil.getSuperMethodSignatureSubstitutor(
methodSignature, superMethodSignature);
substitutor =
superMethodSubstitutor != null ? superMethodSubstitutor : superClassSubstitutor;
} else {
substitutor = PsiSubstitutor.EMPTY;
}
}
return substitutor;
}
@NotNull
private static List<PsiMethod> findMethodsBySignature(
@NotNull PsiClass aClass,
@NotNull PsiMethod patternMethod,
boolean checkBases,
boolean stopOnFirst) {
final PsiMethod[] methodsByName = aClass.findMethodsByName(patternMethod.getName(), checkBases);
if (methodsByName.length == 0) return Collections.emptyList();
final List<PsiMethod> methods = new SmartList<PsiMethod>();
final MethodSignature patternSignature = patternMethod.getSignature(PsiSubstitutor.EMPTY);
for (final PsiMethod method : methodsByName) {
final PsiClass superClass = method.getContainingClass();
final PsiSubstitutor substitutor;
if (checkBases && !aClass.equals(superClass)) {
substitutor =
TypeConversionUtil.getSuperClassSubstitutor(superClass, aClass, PsiSubstitutor.EMPTY);
} else {
substitutor = PsiSubstitutor.EMPTY;
}
final MethodSignature signature = method.getSignature(substitutor);
if (signature.equals(patternSignature)) {
methods.add(method);
if (stopOnFirst) {
break;
}
}
}
return methods;
}
@Nullable
private static PsiMethod doFindMethodInSuperClassBySignatureInDerived(
@NotNull PsiClass superClass,
@NotNull PsiSubstitutor superSubstitutor,
@NotNull MethodSignature signature,
final boolean checkDeep) {
final String name = signature.getName();
final PsiMethod[] methods = superClass.findMethodsByName(name, false);
for (final PsiMethod method : methods) {
if (isSubsignature(method.getSignature(superSubstitutor), signature)) {
return method;
}
}
if (checkDeep) {
final PsiClass clazz = superClass.getSuperClass();
if (clazz != null && clazz != superClass) {
PsiSubstitutor substitutor1 =
TypeConversionUtil.getSuperClassSubstitutor(clazz, superClass, superSubstitutor);
return doFindMethodInSuperClassBySignatureInDerived(clazz, substitutor1, signature, true);
}
}
return null;
}
private static boolean isReturnTypeIsMoreSpecificThan(
@NotNull HierarchicalMethodSignature thisSig, @NotNull HierarchicalMethodSignature thatSig) {
PsiType thisRet = thisSig.getSubstitutor().substitute(thisSig.getMethod().getReturnType());
PsiType thatRet = thatSig.getSubstitutor().substitute(thatSig.getMethod().getReturnType());
return thatRet != null
&& thisRet != null
&& !thatRet.equals(thisRet)
&& TypeConversionUtil.isAssignable(thatRet, thisRet, false);
}
private static boolean isBoxingHappened(
PsiType argType, PsiType parameterType, @NotNull LanguageLevel languageLevel) {
if (argType == null) return parameterType instanceof PsiPrimitiveType;
if (parameterType instanceof PsiClassType) {
parameterType = ((PsiClassType) parameterType).setLanguageLevel(languageLevel);
}
return TypeConversionUtil.boxingConversionApplicable(parameterType, argType);
}
@Nullable
private static MethodSignature getSignatureForInheritor(
@NotNull PsiMethod methodFromSuperClass, @NotNull GrTypeDefinition inheritor) {
final PsiClass clazz = methodFromSuperClass.getContainingClass();
if (clazz == null) return null;
PsiSubstitutor superSubstitutor =
TypeConversionUtil.getClassSubstitutor(clazz, inheritor, PsiSubstitutor.EMPTY);
if (superSubstitutor == null) return null;
return methodFromSuperClass.getSignature(superSubstitutor);
}
static boolean isInheritorOrSelf(PsiMethod inheritorCandidate, PsiMethod base) {
PsiClass aClass = inheritorCandidate.getContainingClass();
PsiClass bClass = base.getContainingClass();
if (aClass == null || bClass == null) return false;
PsiSubstitutor substitutor =
TypeConversionUtil.getClassSubstitutor(bClass, aClass, PsiSubstitutor.EMPTY);
return substitutor != null
&& MethodSignatureUtil.findMethodBySignature(
bClass, inheritorCandidate.getSignature(substitutor), false)
== base;
}
@Nullable
public static PsiMethod findMethodInSuperClassBySignatureInDerived(
@NotNull final PsiClass aClass,
@NotNull final PsiClass superClass,
@NotNull MethodSignature signature,
final boolean checkDeep) {
PsiSubstitutor superSubstitutor =
TypeConversionUtil.getSuperClassSubstitutor(superClass, aClass, PsiSubstitutor.EMPTY);
return doFindMethodInSuperClassBySignatureInDerived(
superClass, superSubstitutor, signature, checkDeep);
}
public static PsiType[] getErasedParameterTypes(MethodSignature signature) {
PsiType[] parameterTypes = signature.getParameterTypes();
if (parameterTypes.length == 0) return PsiType.EMPTY_ARRAY;
PsiSubstitutor substitutor = signature.getSubstitutor();
PsiType[] erasedTypes = new PsiType[parameterTypes.length];
for (int i = 0; i < parameterTypes.length; i++) {
erasedTypes[i] =
TypeConversionUtil.erasure(substitutor.substitute(parameterTypes[i]), substitutor);
}
return erasedTypes;
}
public static boolean isSuperMethod(
@NotNull PsiMethod superMethodCandidate, @NotNull PsiMethod derivedMethod) {
PsiClass superClassCandidate = superMethodCandidate.getContainingClass();
PsiClass derivedClass = derivedMethod.getContainingClass();
if (derivedClass == null || superClassCandidate == null) return false;
if (!derivedClass.isInheritor(superClassCandidate, true)) return false;
final PsiSubstitutor superSubstitutor =
TypeConversionUtil.getSuperClassSubstitutor(
superClassCandidate, derivedClass, PsiSubstitutor.EMPTY);
final MethodSignature superSignature = superMethodCandidate.getSignature(superSubstitutor);
final MethodSignature derivedSignature = derivedMethod.getSignature(PsiSubstitutor.EMPTY);
return isSubsignature(superSignature, derivedSignature);
}
@Override
public int computeHashCode(final MethodSignature signature) {
int result = signature.isConstructor() ? 0 : signature.getName().hashCode();
PsiType[] parameterTypes = signature.getParameterTypes();
result += 37 * parameterTypes.length;
PsiType firstParamType = parameterTypes.length == 0 ? null : parameterTypes[0];
if (firstParamType != null) {
firstParamType = TypeConversionUtil.erasure(firstParamType, signature.getSubstitutor());
assert firstParamType != null : parameterTypes[0];
result = 31 * result + firstParamType.hashCode();
}
return result;
}
private static AllowedValues getAllowedValuesFromMagic(
@NotNull PsiModifierListOwner element, @NotNull PsiType type, PsiAnnotation magic) {
if (magic == null) return null;
PsiAnnotationMemberValue[] allowedValues;
final boolean canBeOred;
if (TypeConversionUtil.getTypeRank(type) <= TypeConversionUtil.LONG_RANK) {
PsiAnnotationMemberValue intValues = magic.findAttributeValue("intValues");
allowedValues =
intValues instanceof PsiArrayInitializerMemberValue
? ((PsiArrayInitializerMemberValue) intValues).getInitializers()
: PsiAnnotationMemberValue.EMPTY_ARRAY;
if (allowedValues.length == 0) {
PsiAnnotationMemberValue orValue = magic.findAttributeValue("flags");
allowedValues =
orValue instanceof PsiArrayInitializerMemberValue
? ((PsiArrayInitializerMemberValue) orValue).getInitializers()
: PsiAnnotationMemberValue.EMPTY_ARRAY;
canBeOred = true;
} else {
canBeOred = false;
}
} else if (type.equals(
PsiType.getJavaLangString(
element.getManager(), GlobalSearchScope.allScope(element.getProject())))) {
PsiAnnotationMemberValue strValuesAttr = magic.findAttributeValue("stringValues");
allowedValues =
strValuesAttr instanceof PsiArrayInitializerMemberValue
? ((PsiArrayInitializerMemberValue) strValuesAttr).getInitializers()
: PsiAnnotationMemberValue.EMPTY_ARRAY;
canBeOred = false;
} else {
return null; // other types not supported
}
if (allowedValues.length != 0) {
return new AllowedValues(allowedValues, canBeOred);
}
// last resort: try valuesFromClass
PsiAnnotationMemberValue[] values = readFromClass("valuesFromClass", magic, type);
boolean ored = false;
if (values == null) {
values = readFromClass("flagsFromClass", magic, type);
ored = true;
}
if (values == null) return null;
return new AllowedValues(values, ored);
}
public static boolean isSubsignature(
MethodSignature superSignature, MethodSignature subSignature) {
if (subSignature == superSignature) return true;
if (!areSignaturesEqualLightweight(superSignature, subSignature)) return false;
PsiSubstitutor unifyingSubstitutor =
getSuperMethodSignatureSubstitutor(subSignature, superSignature);
if (checkSignaturesEqualInner(superSignature, subSignature, unifyingSubstitutor)) return true;
if (subSignature.getTypeParameters().length > 0) return false;
final PsiType[] subParameterTypes = subSignature.getParameterTypes();
final PsiType[] superParameterTypes = superSignature.getParameterTypes();
for (int i = 0; i < subParameterTypes.length; i++) {
PsiType type1 = subParameterTypes[i];
PsiType type2 = TypeConversionUtil.erasure(superParameterTypes[i]);
if (!Comparing.equal(type1, type2)) return false;
}
return true;
}
@Nullable
public static PsiMethod findMethodBySuperMethod(
@NotNull PsiClass aClass, @NotNull PsiMethod method, final boolean checkBases) {
List<Pair<PsiMethod, PsiSubstitutor>> pairs =
aClass.findMethodsAndTheirSubstitutorsByName(method.getName(), checkBases);
for (Pair<PsiMethod, PsiSubstitutor> pair : pairs) {
PsiMethod candidate = pair.first;
PsiSubstitutor substitutor = pair.second;
MethodSignature candidateSignature = candidate.getSignature(substitutor);
final PsiClass methodClass = method.getContainingClass();
final PsiClass candidateClass = candidate.getContainingClass();
if (methodClass == null || candidateClass == null) continue;
PsiSubstitutor superSubstitutor =
TypeConversionUtil.getClassSubstitutor(methodClass, candidateClass, substitutor);
if (superSubstitutor == null) continue;
MethodSignature superSignature = method.getSignature(superSubstitutor);
if (isSubsignature(superSignature, candidateSignature)) return candidate;
}
return null;
}
@NotNull
private static PsiSubstitutor calculateMethodSubstitutor(
@NotNull PsiTypeParameter[] typeParameters,
@NotNull PsiMethod method,
@NotNull PsiSubstitutor siteSubstitutor,
@NotNull PsiType[] types1,
@NotNull PsiType[] types2,
@NotNull LanguageLevel languageLevel) {
PsiSubstitutor substitutor =
PsiResolveHelper.SERVICE
.getInstance(method.getProject())
.inferTypeArguments(typeParameters, types1, types2, languageLevel);
for (PsiTypeParameter typeParameter : PsiUtil.typeParametersIterable(method)) {
ProgressManager.checkCanceled();
LOG.assertTrue(typeParameter != null);
if (!substitutor.getSubstitutionMap().containsKey(typeParameter)) {
PsiType type = siteSubstitutor.substitute(typeParameter);
if (type instanceof PsiClassType && typeParameter.getOwner() == method) {
final PsiClass aClass = ((PsiClassType) type).resolve();
if (aClass instanceof PsiTypeParameter
&& ((PsiTypeParameter) aClass).getOwner() == method) {
type = TypeConversionUtil.erasure(type, siteSubstitutor);
}
}
substitutor = substitutor.put(typeParameter, type);
} else {
final PsiType type = substitutor.substitute(typeParameter);
if (type instanceof PsiClassType) {
final PsiClass aClass = ((PsiClassType) type).resolve();
if (aClass instanceof PsiTypeParameter) {
substitutor =
substitutor.put(
typeParameter,
JavaPsiFacade.getElementFactory(aClass.getProject())
.createType(aClass, siteSubstitutor));
}
}
}
}
return substitutor;
}
private static void processConstructor(GrMethod constructor, JavaChangeInfo changeInfo) {
final PsiClass containingClass = constructor.getContainingClass();
final PsiClass baseClass = changeInfo.getMethod().getContainingClass();
final PsiSubstitutor substitutor =
TypeConversionUtil.getSuperClassSubstitutor(
baseClass, containingClass, PsiSubstitutor.EMPTY);
GrOpenBlock block = constructor.getBlock();
GrConstructorInvocation invocation =
GroovyPsiElementFactory.getInstance(constructor.getProject())
.createConstructorInvocation("super()");
invocation =
(GrConstructorInvocation) block.addStatementBefore(invocation, getFirstStatement(block));
processMethodUsage(
invocation.getInvokedExpression(),
changeInfo,
changeInfo.isParameterSetOrOrderChanged() || changeInfo.isParameterNamesChanged(),
changeInfo.isExceptionSetChanged(),
GrClosureSignatureUtil.ArgInfo.<PsiElement>empty_array(),
substitutor);
}
private static void addSuperCall(
JavaChangeInfo changeInfo, PsiMethod constructor, PsiMethod callee, final UsageInfo[] usages)
throws IncorrectOperationException {
final PsiElementFactory factory = JavaPsiFacade.getElementFactory(constructor.getProject());
PsiExpressionStatement superCall =
(PsiExpressionStatement) factory.createStatementFromText("super();", constructor);
PsiCodeBlock body = constructor.getBody();
assert body != null;
PsiStatement[] statements = body.getStatements();
if (statements.length > 0) {
superCall = (PsiExpressionStatement) body.addBefore(superCall, statements[0]);
} else {
superCall = (PsiExpressionStatement) body.add(superCall);
}
PsiMethodCallExpression callExpression = (PsiMethodCallExpression) superCall.getExpression();
final PsiClass aClass = constructor.getContainingClass();
final PsiClass baseClass = changeInfo.getMethod().getContainingClass();
final PsiSubstitutor substitutor =
TypeConversionUtil.getSuperClassSubstitutor(baseClass, aClass, PsiSubstitutor.EMPTY);
processMethodUsage(
callExpression.getMethodExpression(), changeInfo, true, false, callee, substitutor, usages);
}
@Nullable
public static String getSuspiciousMethodCallMessage(
@NotNull PsiMethodCallExpression methodCall,
PsiType argType,
boolean reportConvertibleMethodCalls,
@NotNull List<PsiMethod> patternMethods,
@NotNull IntArrayList indices) {
final PsiReferenceExpression methodExpression = methodCall.getMethodExpression();
final PsiExpression qualifier = methodExpression.getQualifierExpression();
if (qualifier == null
|| qualifier instanceof PsiThisExpression
|| qualifier instanceof PsiSuperExpression) return null;
if (argType instanceof PsiPrimitiveType) {
argType = ((PsiPrimitiveType) argType).getBoxedType(methodCall);
}
if (!(argType instanceof PsiClassType)) return null;
final JavaResolveResult resolveResult = methodExpression.advancedResolve(false);
PsiMethod calleeMethod = (PsiMethod) resolveResult.getElement();
if (calleeMethod == null) return null;
PsiMethod contextMethod = PsiTreeUtil.getParentOfType(methodCall, PsiMethod.class);
//noinspection SynchronizationOnLocalVariableOrMethodParameter
synchronized (patternMethods) {
if (patternMethods.isEmpty()) {
setupPatternMethods(
methodCall.getManager(), methodCall.getResolveScope(), patternMethods, indices);
}
}
for (int i = 0; i < patternMethods.size(); i++) {
PsiMethod patternMethod = patternMethods.get(i);
if (!patternMethod.getName().equals(methodExpression.getReferenceName())) continue;
int index = indices.get(i);
// we are in collections method implementation
if (contextMethod != null && isInheritorOrSelf(contextMethod, patternMethod)) return null;
final PsiClass calleeClass = calleeMethod.getContainingClass();
PsiSubstitutor substitutor = resolveResult.getSubstitutor();
final PsiClass patternClass = patternMethod.getContainingClass();
assert patternClass != null;
assert calleeClass != null;
substitutor = TypeConversionUtil.getClassSubstitutor(patternClass, calleeClass, substitutor);
if (substitutor == null) continue;
if (!patternMethod
.getSignature(substitutor)
.equals(calleeMethod.getSignature(PsiSubstitutor.EMPTY))) continue;
PsiTypeParameter[] typeParameters = patternClass.getTypeParameters();
if (typeParameters.length <= index) return null;
final PsiTypeParameter typeParameter = typeParameters[index];
PsiType typeParamMapping = substitutor.substitute(typeParameter);
if (typeParamMapping == null) return null;
PsiParameter[] parameters = patternMethod.getParameterList().getParameters();
if (parameters.length == 1 && "removeAll".equals(patternMethod.getName())) {
PsiType paramType = parameters[0].getType();
if (InheritanceUtil.isInheritor(paramType, CommonClassNames.JAVA_UTIL_COLLECTION)) {
PsiType qualifierType = qualifier.getType();
if (qualifierType != null) {
final PsiType itemType =
JavaGenericsUtil.getCollectionItemType(argType, calleeMethod.getResolveScope());
final PsiType qualifierItemType =
JavaGenericsUtil.getCollectionItemType(
qualifierType, calleeMethod.getResolveScope());
if (qualifierItemType != null
&& itemType != null
&& !qualifierItemType.isAssignableFrom(itemType)) {
return InspectionsBundle.message(
"inspection.suspicious.collections.method.calls.problem.descriptor",
PsiFormatUtil.formatType(qualifierType, 0, PsiSubstitutor.EMPTY),
PsiFormatUtil.formatType(itemType, 0, PsiSubstitutor.EMPTY));
}
}
return null;
}
}
String message = null;
if (typeParamMapping instanceof PsiCapturedWildcardType) {
typeParamMapping = ((PsiCapturedWildcardType) typeParamMapping).getWildcard();
}
if (!typeParamMapping.isAssignableFrom(argType)) {
if (typeParamMapping.isConvertibleFrom(argType)) {
if (reportConvertibleMethodCalls) {
message =
InspectionsBundle.message(
"inspection.suspicious.collections.method.calls.problem.descriptor1",
PsiFormatUtil.formatMethod(
calleeMethod,
substitutor,
PsiFormatUtilBase.SHOW_NAME | PsiFormatUtilBase.SHOW_CONTAINING_CLASS,
PsiFormatUtilBase.SHOW_TYPE));
}
} else {
PsiType qualifierType = qualifier.getType();
if (qualifierType != null) {
message =
InspectionsBundle.message(
"inspection.suspicious.collections.method.calls.problem.descriptor",
PsiFormatUtil.formatType(qualifierType, 0, PsiSubstitutor.EMPTY),
PsiFormatUtil.formatType(argType, 0, PsiSubstitutor.EMPTY));
}
}
}
return message;
}
return null;
}
private NamesByExprInfo suggestVariableNameByExpressionPlace(
PsiExpression expr, final VariableKind variableKind, boolean correctKeywords) {
if (expr.getParent() instanceof PsiExpressionList) {
PsiExpressionList list = (PsiExpressionList) expr.getParent();
PsiElement listParent = list.getParent();
PsiSubstitutor subst = PsiSubstitutor.EMPTY;
PsiMethod method = null;
if (listParent instanceof PsiMethodCallExpression) {
final JavaResolveResult resolveResult =
((PsiMethodCallExpression) listParent).getMethodExpression().advancedResolve(false);
method = (PsiMethod) resolveResult.getElement();
subst = resolveResult.getSubstitutor();
} else {
if (listParent instanceof PsiAnonymousClass) {
listParent = listParent.getParent();
}
if (listParent instanceof PsiNewExpression) {
method = ((PsiNewExpression) listParent).resolveConstructor();
}
}
if (method != null) {
final PsiElement navElement = method.getNavigationElement();
if (navElement instanceof PsiMethod) {
method = (PsiMethod) navElement;
}
PsiExpression[] expressions = list.getExpressions();
int index = -1;
for (int i = 0; i < expressions.length; i++) {
if (expressions[i] == expr) {
index = i;
break;
}
}
PsiParameter[] parameters = method.getParameterList().getParameters();
if (index < parameters.length) {
String name = parameters[index].getName();
if (name != null
&& TypeConversionUtil.areTypesAssignmentCompatible(
subst.substitute(parameters[index].getType()), expr)) {
name = variableNameToPropertyName(name, VariableKind.PARAMETER);
String[] names = getSuggestionsByName(name, variableKind, false, correctKeywords);
if (expressions.length == 1) {
final String methodName = method.getName();
String[] words = NameUtil.nameToWords(methodName);
if (words.length > 0) {
final String firstWord = words[0];
if (SET_PREFIX.equals(firstWord)) {
final String propertyName = methodName.substring(firstWord.length());
final String[] setterNames =
getSuggestionsByName(propertyName, variableKind, false, correctKeywords);
names = ArrayUtil.mergeArrays(names, setterNames);
}
}
}
return new NamesByExprInfo(name, names);
}
}
}
} else if (expr.getParent() instanceof PsiAssignmentExpression
&& variableKind == VariableKind.PARAMETER) {
final PsiAssignmentExpression assignmentExpression =
(PsiAssignmentExpression) expr.getParent();
if (expr == assignmentExpression.getRExpression()) {
final PsiExpression leftExpression = assignmentExpression.getLExpression();
if (leftExpression instanceof PsiReferenceExpression
&& ((PsiReferenceExpression) leftExpression).getQualifier() == null) {
String name = leftExpression.getText();
if (name != null) {
final PsiElement resolve = ((PsiReferenceExpression) leftExpression).resolve();
if (resolve instanceof PsiVariable) {
name = variableNameToPropertyName(name, getVariableKind((PsiVariable) resolve));
}
String[] names = getSuggestionsByName(name, variableKind, false, correctKeywords);
return new NamesByExprInfo(name, names);
}
}
}
}
return new NamesByExprInfo(null, ArrayUtil.EMPTY_STRING_ARRAY);
}
private static boolean provablyDistinct(PsiType type1, PsiType type2, int level) {
if (type1 instanceof PsiClassType
&& ((PsiClassType) type1).resolve() instanceof PsiTypeParameter) return false;
if (type2 instanceof PsiClassType
&& ((PsiClassType) type2).resolve() instanceof PsiTypeParameter) return false;
if (type1 instanceof PsiWildcardType) {
if (type2 instanceof PsiWildcardType) {
return provablyDistinct((PsiWildcardType) type1, (PsiWildcardType) type2);
}
if (type2 instanceof PsiCapturedWildcardType) {
return ((PsiWildcardType) type1).isExtends() && level > 0
|| provablyDistinct(
(PsiWildcardType) type1, ((PsiCapturedWildcardType) type2).getWildcard());
}
if (type2 instanceof PsiClassType) {
final PsiClass psiClass2 = PsiUtil.resolveClassInType(type2);
if (psiClass2 == null) return false;
if (((PsiWildcardType) type1).isExtends()) {
final PsiType extendsBound = ((PsiWildcardType) type1).getExtendsBound();
if (extendsBound instanceof PsiArrayType
&& proveArrayTypeDistinct(
((PsiWildcardType) type1).getManager().getProject(),
(PsiArrayType) extendsBound,
type2)) return true;
final PsiClass boundClass1 = PsiUtil.resolveClassInType(extendsBound);
if (boundClass1 == null) return false;
return proveExtendsBoundsDistinct(type1, type2, boundClass1, psiClass2);
}
if (((PsiWildcardType) type1).isSuper()) {
final PsiType superBound = ((PsiWildcardType) type1).getSuperBound();
if (superBound instanceof PsiArrayType
&& proveArrayTypeDistinct(
((PsiWildcardType) type1).getManager().getProject(),
(PsiArrayType) superBound,
type2)) return true;
final PsiClass boundClass1 = PsiUtil.resolveClassInType(superBound);
if (boundClass1 == null || boundClass1 instanceof PsiTypeParameter) return false;
return !InheritanceUtil.isInheritorOrSelf(boundClass1, psiClass2, true);
}
final PsiType bound = ((PsiWildcardType) type1).getBound();
return bound != null && !bound.equals(psiClass2);
}
if (type2 instanceof PsiArrayType) {
return proveArrayTypeDistinct(
((PsiWildcardType) type1).getManager().getProject(), (PsiArrayType) type2, type1);
}
}
if (type1 instanceof PsiCapturedWildcardType)
return provablyDistinct(((PsiCapturedWildcardType) type1).getWildcard(), type2, level);
if (type2 instanceof PsiWildcardType || type2 instanceof PsiCapturedWildcardType)
return provablyDistinct(type2, type1, level);
final PsiClassType.ClassResolveResult classResolveResult1 =
PsiUtil.resolveGenericsClassInType(type1);
final PsiClassType.ClassResolveResult classResolveResult2 =
PsiUtil.resolveGenericsClassInType(type2);
if (Comparing.equal(TypeConversionUtil.erasure(type1), TypeConversionUtil.erasure(type2))) {
final PsiSubstitutor substitutor1 = classResolveResult1.getSubstitutor();
final PsiSubstitutor substitutor2 = classResolveResult2.getSubstitutor();
for (PsiTypeParameter parameter : substitutor1.getSubstitutionMap().keySet()) {
final PsiType substitutedType1 = substitutor1.substitute(parameter);
final PsiType substitutedType2 = substitutor2.substitute(parameter);
if (substitutedType1 == null && substitutedType2 == null) return false;
if (substitutedType1 == null || substitutedType2 == null) {
return true;
} else {
if (provablyDistinct(substitutedType1, substitutedType2, level + 1)) return true;
if (substitutedType1 instanceof PsiWildcardType
&& !((PsiWildcardType) substitutedType1).isBounded()) return true;
}
}
return false;
}
final PsiClass boundClass1 = classResolveResult1.getElement();
final PsiClass boundClass2 = classResolveResult2.getElement();
return type2 != null
&& type1 != null
&& !type1.equals(type2)
&& (!InheritanceUtil.isInheritorOrSelf(boundClass1, boundClass2, true)
|| !InheritanceUtil.isInheritorOrSelf(boundClass2, boundClass1, true));
}
@NotNull
private static LookupElement castQualifier(
@NotNull LookupElement item,
@Nullable final PsiTypeLookupItem castTypeItem,
@Nullable PsiType plainQualifier,
JavaCompletionProcessor processor) {
if (castTypeItem == null) {
return item;
}
if (plainQualifier != null) {
Object o = item.getObject();
if (o instanceof PsiMethod) {
PsiType castType = castTypeItem.getType();
if (plainQualifier instanceof PsiClassType && castType instanceof PsiClassType) {
PsiMethod method = (PsiMethod) o;
PsiClassType.ClassResolveResult plainResult =
((PsiClassType) plainQualifier).resolveGenerics();
PsiClass plainClass = plainResult.getElement();
if (plainClass != null && plainClass.findMethodBySignature(method, true) != null) {
PsiClass castClass = ((PsiClassType) castType).resolveGenerics().getElement();
if (castClass == null || !castClass.isInheritor(plainClass, true)) {
return item;
}
PsiSubstitutor plainSub = plainResult.getSubstitutor();
PsiSubstitutor castSub =
TypeConversionUtil.getSuperClassSubstitutor(plainClass, (PsiClassType) castType);
PsiType returnType = method.getReturnType();
if (method.getSignature(plainSub).equals(method.getSignature(castSub))) {
PsiType typeAfterCast = toRaw(castSub.substitute(returnType));
PsiType typeDeclared = toRaw(plainSub.substitute(returnType));
if (typeAfterCast != null
&& typeDeclared != null
&& typeAfterCast.isAssignableFrom(typeDeclared)
&& processor.isAccessible(plainClass.findMethodBySignature(method, true))) {
return item;
}
}
}
}
} else if (containsMember(plainQualifier, o)) {
return item;
}
}
return LookupElementDecorator.withInsertHandler(
item,
new InsertHandlerDecorator<LookupElement>() {
@Override
public void handleInsert(
InsertionContext context, LookupElementDecorator<LookupElement> item) {
final Document document = context.getEditor().getDocument();
context.commitDocument();
final PsiFile file = context.getFile();
final PsiJavaCodeReferenceElement ref =
PsiTreeUtil.findElementOfClassAtOffset(
file, context.getStartOffset(), PsiJavaCodeReferenceElement.class, false);
if (ref != null) {
final PsiElement qualifier = ref.getQualifier();
if (qualifier != null) {
final CommonCodeStyleSettings settings = context.getCodeStyleSettings();
final String parenSpace = settings.SPACE_WITHIN_PARENTHESES ? " " : "";
document.insertString(qualifier.getTextRange().getEndOffset(), parenSpace + ")");
final String spaceWithin = settings.SPACE_WITHIN_CAST_PARENTHESES ? " " : "";
final String prefix = "(" + parenSpace + "(" + spaceWithin;
final String spaceAfter = settings.SPACE_AFTER_TYPE_CAST ? " " : "";
final int exprStart = qualifier.getTextRange().getStartOffset();
document.insertString(exprStart, prefix + spaceWithin + ")" + spaceAfter);
CompletionUtil.emulateInsertion(context, exprStart + prefix.length(), castTypeItem);
PsiDocumentManager.getInstance(file.getProject())
.doPostponedOperationsAndUnblockDocument(document);
context.getEditor().getCaretModel().moveToOffset(context.getTailOffset());
}
}
item.getDelegate().handleInsert(context);
}
});
}
private Specifics isMoreSpecific(
@NotNull MethodCandidateInfo info1,
@NotNull MethodCandidateInfo info2,
@MethodCandidateInfo.ApplicabilityLevelConstant int applicabilityLevel,
@NotNull LanguageLevel languageLevel) {
PsiMethod method1 = info1.getElement();
PsiMethod method2 = info2.getElement();
final PsiClass class1 = method1.getContainingClass();
final PsiClass class2 = method2.getContainingClass();
final PsiParameter[] params1 = method1.getParameterList().getParameters();
final PsiParameter[] params2 = method2.getParameterList().getParameters();
final PsiTypeParameter[] typeParameters1 = method1.getTypeParameters();
final PsiTypeParameter[] typeParameters2 = method2.getTypeParameters();
final PsiSubstitutor classSubstitutor1 =
info1.getSubstitutor(false); // substitutions for method type parameters will be ignored
final PsiSubstitutor classSubstitutor2 = info2.getSubstitutor(false);
final int max = Math.max(params1.length, params2.length);
PsiType[] types1 = PsiType.createArray(max);
PsiType[] types2 = PsiType.createArray(max);
final boolean varargsPosition =
applicabilityLevel == MethodCandidateInfo.ApplicabilityLevel.VARARGS;
for (int i = 0; i < max; i++) {
ProgressManager.checkCanceled();
PsiType type1 =
params1.length > 0 ? params1[Math.min(i, params1.length - 1)].getType() : null;
PsiType type2 =
params2.length > 0 ? params2[Math.min(i, params2.length - 1)].getType() : null;
if (varargsPosition) {
if (type1 instanceof PsiEllipsisType
&& type2 instanceof PsiEllipsisType
&& params1.length == params2.length
&& class1 != null
&& (!JavaVersionService.getInstance().isAtLeast(class1, JavaSdkVersion.JDK_1_7)
|| ((PsiArrayType) type1)
.getComponentType()
.equalsToText(CommonClassNames.JAVA_LANG_OBJECT)
|| ((PsiArrayType) type2)
.getComponentType()
.equalsToText(CommonClassNames.JAVA_LANG_OBJECT))) {
type1 = ((PsiEllipsisType) type1).toArrayType();
type2 = ((PsiEllipsisType) type2).toArrayType();
} else {
type1 =
type1 instanceof PsiEllipsisType ? ((PsiArrayType) type1).getComponentType() : type1;
type2 =
type2 instanceof PsiEllipsisType ? ((PsiArrayType) type2).getComponentType() : type2;
}
}
types1[i] = type1;
types2[i] = type2;
}
boolean sameBoxing = true;
int[] boxingHappened = new int[2];
for (int i = 0; i < types1.length; i++) {
ProgressManager.checkCanceled();
PsiType type1 = classSubstitutor1.substitute(types1[i]);
PsiType type2 = classSubstitutor2.substitute(types2[i]);
PsiType argType = i < getActualParameterTypes().length ? getActualParameterTypes()[i] : null;
boolean boxingInFirst = false;
if (isBoxingHappened(argType, type1, languageLevel)) {
boxingHappened[0] += 1;
boxingInFirst = true;
}
boolean boxingInSecond = false;
if (isBoxingHappened(argType, type2, languageLevel)) {
boxingHappened[1] += 1;
boxingInSecond = true;
}
sameBoxing &= boxingInFirst == boxingInSecond;
}
if (boxingHappened[0] == 0 && boxingHappened[1] > 0) return Specifics.FIRST;
if (boxingHappened[0] > 0 && boxingHappened[1] == 0) return Specifics.SECOND;
if (sameBoxing) {
final PsiSubstitutor siteSubstitutor1 = info1.getSiteSubstitutor();
final PsiSubstitutor siteSubstitutor2 = info2.getSiteSubstitutor();
final PsiType[] types2AtSite = typesAtSite(types2, siteSubstitutor2);
final PsiType[] types1AtSite = typesAtSite(types1, siteSubstitutor1);
final PsiSubstitutor methodSubstitutor1 =
calculateMethodSubstitutor(
typeParameters1, method1, siteSubstitutor1, types1, types2AtSite, languageLevel);
boolean applicable12 =
isApplicableTo(
types2AtSite, method1, languageLevel, varargsPosition, methodSubstitutor1, method2);
final PsiSubstitutor methodSubstitutor2 =
calculateMethodSubstitutor(
typeParameters2, method2, siteSubstitutor2, types2, types1AtSite, languageLevel);
boolean applicable21 =
isApplicableTo(
types1AtSite, method2, languageLevel, varargsPosition, methodSubstitutor2, method1);
if (!myLanguageLevel.isAtLeast(LanguageLevel.JDK_1_8)) {
final boolean typeArgsApplicable12 =
GenericsUtil.isTypeArgumentsApplicable(
typeParameters1, methodSubstitutor1, myArgumentsList, !applicable21);
final boolean typeArgsApplicable21 =
GenericsUtil.isTypeArgumentsApplicable(
typeParameters2, methodSubstitutor2, myArgumentsList, !applicable12);
if (!typeArgsApplicable12) {
applicable12 = false;
}
if (!typeArgsApplicable21) {
applicable21 = false;
}
}
if (applicable12 || applicable21) {
if (applicable12 && !applicable21) return Specifics.SECOND;
if (applicable21 && !applicable12) return Specifics.FIRST;
final boolean abstract1 = method1.hasModifierProperty(PsiModifier.ABSTRACT);
final boolean abstract2 = method2.hasModifierProperty(PsiModifier.ABSTRACT);
if (abstract1 && !abstract2) {
return Specifics.SECOND;
}
if (abstract2 && !abstract1) {
return Specifics.FIRST;
}
}
if (languageLevel.isAtLeast(LanguageLevel.JDK_1_8)
&& myArgumentsList instanceof PsiExpressionList
&& (typeParameters1.length == 0 || typeParameters2.length == 0)) {
boolean toCompareFunctional = false;
if (types1.length > 0 && types2.length > 0) {
for (int i = 0; i < getActualParametersLength(); i++) {
final PsiType type1 = types1[Math.min(i, types1.length - 1)];
final PsiType type2 = types2[Math.min(i, types2.length - 1)];
// from 15.12.2.5 Choosing the Most Specific Method
// In addition, a functional interface type S is more specific than a functional
// interface type T for an expression exp
// if T is not a subtype of S and one of the following conditions apply.
if (LambdaUtil.isFunctionalType(type1)
&& !TypeConversionUtil.erasure(type1).isAssignableFrom(type2)
&& LambdaUtil.isFunctionalType(type2)
&& !TypeConversionUtil.erasure(type2).isAssignableFrom(type1)) {
types1AtSite[Math.min(i, types1.length - 1)] = PsiType.NULL;
types2AtSite[Math.min(i, types2.length - 1)] = PsiType.NULL;
toCompareFunctional = true;
}
}
}
if (toCompareFunctional) {
final boolean applicable12ignoreFunctionalType =
isApplicableTo(
types2AtSite,
method1,
languageLevel,
varargsPosition,
calculateMethodSubstitutor(
typeParameters1,
method1,
siteSubstitutor1,
types1,
types2AtSite,
languageLevel),
null);
final boolean applicable21ignoreFunctionalType =
isApplicableTo(
types1AtSite,
method2,
languageLevel,
varargsPosition,
calculateMethodSubstitutor(
typeParameters2,
method2,
siteSubstitutor2,
types2,
types1AtSite,
languageLevel),
null);
if (applicable12ignoreFunctionalType || applicable21ignoreFunctionalType) {
Specifics specifics = null;
for (int i = 0; i < getActualParametersLength(); i++) {
if (types1AtSite[Math.min(i, types1.length - 1)] == PsiType.NULL
&& types2AtSite[Math.min(i, types2.length - 1)] == PsiType.NULL) {
Specifics specific =
isFunctionalTypeMoreSpecific(
info1, info2, ((PsiExpressionList) myArgumentsList).getExpressions()[i], i);
if (specific == Specifics.NEITHER) {
specifics = Specifics.NEITHER;
break;
}
if (specifics == null) {
specifics = specific;
} else if (specifics != specific) {
specifics = Specifics.NEITHER;
break;
}
}
}
if (!applicable12ignoreFunctionalType && applicable21ignoreFunctionalType) {
return specifics == Specifics.FIRST ? Specifics.FIRST : Specifics.NEITHER;
}
if (!applicable21ignoreFunctionalType && applicable12ignoreFunctionalType) {
return specifics == Specifics.SECOND ? Specifics.SECOND : Specifics.NEITHER;
}
return specifics;
}
}
}
} else if (varargsPosition) {
final PsiType lastParamType1 = classSubstitutor1.substitute(types1[types1.length - 1]);
final PsiType lastParamType2 = classSubstitutor2.substitute(types2[types1.length - 1]);
final boolean assignable1 = TypeConversionUtil.isAssignable(lastParamType2, lastParamType1);
final boolean assignable2 = TypeConversionUtil.isAssignable(lastParamType1, lastParamType2);
if (assignable1 && !assignable2) {
return Specifics.FIRST;
}
if (assignable2 && !assignable1) {
return Specifics.SECOND;
}
}
if (class1 != class2) {
if (class2.isInheritor(class1, true) || class1.isInterface() && !class2.isInterface()) {
if (MethodSignatureUtil.isSubsignature(
method1.getSignature(info1.getSubstitutor(false)),
method2.getSignature(info2.getSubstitutor(false)))) {
return Specifics.SECOND;
} else if (method1.hasModifierProperty(PsiModifier.STATIC)
&& method2.hasModifierProperty(PsiModifier.STATIC)
&& boxingHappened[0] == 0) {
return Specifics.SECOND;
}
} else if (MethodSignatureUtil.areErasedParametersEqual(
method1.getSignature(PsiSubstitutor.EMPTY),
method2.getSignature(PsiSubstitutor.EMPTY))
&& MethodSignatureUtil.isSubsignature(
method2.getSignature(info2.getSubstitutor(false)),
method1.getSignature(info1.getSubstitutor(false)))) {
return Specifics.FIRST;
} else if (class1.isInheritor(class2, true) || class2.isInterface()) {
if (method1.hasModifierProperty(PsiModifier.STATIC)
&& method2.hasModifierProperty(PsiModifier.STATIC)
&& boxingHappened[0] == 0) {
return Specifics.FIRST;
}
}
}
final boolean raw1 = PsiUtil.isRawSubstitutor(method1, classSubstitutor1);
final boolean raw2 = PsiUtil.isRawSubstitutor(method2, classSubstitutor2);
if (raw1 ^ raw2) {
return raw1 ? Specifics.SECOND : Specifics.FIRST;
}
final boolean varargs1 = info1.isVarargs();
final boolean varargs2 = info2.isVarargs();
if (varargs1 ^ varargs2) {
return varargs1 ? Specifics.SECOND : Specifics.FIRST;
}
return Specifics.NEITHER;
}
// This methods works equally well for primary usages as well as for propagated callers' usages
private static void fixActualArgumentsList(
PsiExpressionList list,
JavaChangeInfo changeInfo,
boolean toInsertDefaultValue,
PsiSubstitutor substitutor)
throws IncorrectOperationException {
final PsiElementFactory factory =
JavaPsiFacade.getInstance(list.getProject()).getElementFactory();
if (changeInfo.isParameterSetOrOrderChanged()) {
if (changeInfo instanceof JavaChangeInfoImpl
&& ((JavaChangeInfoImpl) changeInfo).isPropagationEnabled) {
final ParameterInfoImpl[] createdParmsInfo =
((JavaChangeInfoImpl) changeInfo).getCreatedParmsInfoWithoutVarargs();
for (ParameterInfoImpl info : createdParmsInfo) {
PsiExpression newArg;
if (toInsertDefaultValue) {
newArg = createDefaultValue(changeInfo, factory, info, list);
} else {
newArg = factory.createExpressionFromText(info.getName(), list);
}
JavaCodeStyleManager.getInstance(list.getProject())
.shortenClassReferences(list.add(newArg));
}
} else {
final PsiExpression[] args = list.getExpressions();
final int nonVarargCount = getNonVarargCount(changeInfo, args);
final int varargCount = args.length - nonVarargCount;
if (varargCount < 0) return;
PsiExpression[] newVarargInitializers = null;
final int newArgsLength;
final int newNonVarargCount;
final JavaParameterInfo[] newParms = changeInfo.getNewParameters();
if (changeInfo.isArrayToVarargs()) {
newNonVarargCount = newParms.length - 1;
final JavaParameterInfo lastNewParm = newParms[newParms.length - 1];
final PsiExpression arrayToConvert = args[lastNewParm.getOldIndex()];
if (arrayToConvert instanceof PsiNewExpression) {
final PsiNewExpression expression = (PsiNewExpression) arrayToConvert;
final PsiArrayInitializerExpression arrayInitializer = expression.getArrayInitializer();
if (arrayInitializer != null) {
newVarargInitializers = arrayInitializer.getInitializers();
}
}
newArgsLength =
newVarargInitializers == null
? newParms.length
: newNonVarargCount + newVarargInitializers.length;
} else if (changeInfo.isRetainsVarargs()) {
newNonVarargCount = newParms.length - 1;
newArgsLength = newNonVarargCount + varargCount;
} else if (changeInfo.isObtainsVarags()) {
newNonVarargCount = newParms.length - 1;
newArgsLength = newNonVarargCount;
} else {
newNonVarargCount = newParms.length;
newArgsLength = newParms.length;
}
String[] oldVarargs = null;
if (changeInfo.wasVararg() && !changeInfo.isRetainsVarargs()) {
oldVarargs = new String[varargCount];
for (int i = nonVarargCount; i < args.length; i++) {
oldVarargs[i - nonVarargCount] = args[i].getText();
}
}
final PsiExpression[] newArgs = new PsiExpression[newArgsLength];
for (int i = 0; i < newNonVarargCount; i++) {
if (newParms[i].getOldIndex() == nonVarargCount && oldVarargs != null) {
PsiType type = newParms[i].createType(changeInfo.getMethod(), list.getManager());
if (type instanceof PsiArrayType) {
type = substitutor.substitute(type);
type = TypeConversionUtil.erasure(type);
String typeText = type.getCanonicalText();
if (type instanceof PsiEllipsisType) {
typeText = typeText.replace("...", "[]");
}
String text = "new " + typeText + "{" + StringUtil.join(oldVarargs, ",") + "}";
newArgs[i] = factory.createExpressionFromText(text, changeInfo.getMethod());
continue;
}
}
newArgs[i] =
createActualArgument(changeInfo, list, newParms[i], toInsertDefaultValue, args);
}
if (changeInfo.isArrayToVarargs()) {
if (newVarargInitializers == null) {
newArgs[newNonVarargCount] =
createActualArgument(
changeInfo, list, newParms[newNonVarargCount], toInsertDefaultValue, args);
} else {
System.arraycopy(
newVarargInitializers, 0, newArgs, newNonVarargCount, newVarargInitializers.length);
}
} else {
final int newVarargCount = newArgsLength - newNonVarargCount;
LOG.assertTrue(newVarargCount == 0 || newVarargCount == varargCount);
for (int i = newNonVarargCount; i < newArgsLength; i++) {
final int oldIndex = newParms[newNonVarargCount].getOldIndex();
if (oldIndex >= 0 && oldIndex != nonVarargCount) {
newArgs[i] =
createActualArgument(
changeInfo, list, newParms[newNonVarargCount], toInsertDefaultValue, args);
} else {
System.arraycopy(args, nonVarargCount, newArgs, newNonVarargCount, newVarargCount);
break;
}
}
}
ChangeSignatureUtil.synchronizeList(
list, Arrays.asList(newArgs), ExpressionList.INSTANCE, changeInfo.toRemoveParm());
}
}
}
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)));
}
}
}
}
}
}
}
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;
}
}
}
}
}
}
}
private PsiType getCategoryTargetType(PsiMethod method) {
final PsiType parameterType = method.getParameterList().getParameters()[0].getType();
return TypesUtil.boxPrimitiveType(
TypeConversionUtil.erasure(parameterType), myPsiManager, myScope);
}