private static PsiType createType(PsiClass cls, PsiSubstitutor currentSubstitutor, int arrayDim) {
final PsiElementFactory elementFactory =
JavaPsiFacade.getInstance(cls.getProject()).getElementFactory();
PsiType newType = elementFactory.createType(cls, currentSubstitutor);
for (int i = 0; i < arrayDim; i++) {
newType = newType.createArrayType();
}
return newType;
}
private void makeArray(PsiVariable variable) throws IncorrectOperationException {
PsiType type = variable.getType();
PsiElementFactory factory = JavaPsiFacade.getInstance(myClass.getProject()).getElementFactory();
PsiType newType = type.createArrayType();
PsiDeclarationStatement variableDeclarationStatement;
PsiExpression initializer = variable.getInitializer();
if (initializer == null) {
String expression = "[1]";
while (type instanceof PsiArrayType) {
expression += "[1]";
type = ((PsiArrayType) type).getComponentType();
}
PsiExpression init =
factory.createExpressionFromText("new " + type.getCanonicalText() + expression, variable);
variableDeclarationStatement =
factory.createVariableDeclarationStatement(variable.getName(), newType, init);
} else {
PsiExpression init =
factory.createExpressionFromText("{ " + initializer.getText() + " }", variable);
variableDeclarationStatement =
factory.createVariableDeclarationStatement(variable.getName(), newType, init);
}
PsiVariable newVariable = (PsiVariable) variableDeclarationStatement.getDeclaredElements()[0];
PsiUtil.setModifierProperty(newVariable, PsiModifier.FINAL, true);
PsiElement newExpression =
factory.createExpressionFromText(variable.getName() + "[0]", variable);
PsiElement outerCodeBlock = PsiUtil.getVariableCodeBlock(variable, null);
if (outerCodeBlock == null) return;
List<PsiReferenceExpression> outerReferences = new ArrayList<PsiReferenceExpression>();
collectReferences(outerCodeBlock, variable, outerReferences);
replaceReferences(outerReferences, newExpression);
variable.replace(newVariable);
}
@NotNull
private static PsiType getLeastUpperBound(
PsiType type1, PsiType type2, Set<Pair<PsiType, PsiType>> compared, PsiManager manager) {
if (type1 instanceof PsiCapturedWildcardType) {
return getLeastUpperBound(
((PsiCapturedWildcardType) type1).getUpperBound(), type2, compared, manager);
}
if (type2 instanceof PsiCapturedWildcardType) {
return getLeastUpperBound(
type1, ((PsiCapturedWildcardType) type2).getUpperBound(), compared, manager);
}
if (type1 instanceof PsiWildcardType) {
return getLeastUpperBound(
((PsiWildcardType) type1).getExtendsBound(), type2, compared, manager);
}
if (type2 instanceof PsiWildcardType) {
return getLeastUpperBound(
type1, ((PsiWildcardType) type2).getExtendsBound(), compared, manager);
}
if (type1 instanceof PsiArrayType && type2 instanceof PsiArrayType) {
final PsiType componentType1 = ((PsiArrayType) type1).getComponentType();
final PsiType componentType2 = ((PsiArrayType) type2).getComponentType();
final PsiType componentType =
getLeastUpperBound(componentType1, componentType2, compared, manager);
if (componentType1 instanceof PsiPrimitiveType
&& componentType2 instanceof PsiPrimitiveType
&& componentType.equalsToText(CommonClassNames.JAVA_LANG_OBJECT)) {
final PsiElementFactory factory =
JavaPsiFacade.getInstance(manager.getProject()).getElementFactory();
final GlobalSearchScope resolveScope = GlobalSearchScope.allScope(manager.getProject());
final PsiClassType cloneable =
factory.createTypeByFQClassName(CommonClassNames.JAVA_LANG_CLONEABLE, resolveScope);
final PsiClassType serializable =
factory.createTypeByFQClassName(CommonClassNames.JAVA_IO_SERIALIZABLE, resolveScope);
return PsiIntersectionType.createIntersection(componentType, cloneable, serializable);
}
return componentType.createArrayType();
}
if (type1 instanceof PsiIntersectionType) {
Set<PsiType> newConjuncts = new LinkedHashSet<PsiType>();
final PsiType[] conjuncts = ((PsiIntersectionType) type1).getConjuncts();
for (PsiType type : conjuncts) {
newConjuncts.add(getLeastUpperBound(type, type2, compared, manager));
}
return PsiIntersectionType.createIntersection(
newConjuncts.toArray(PsiType.createArray(newConjuncts.size())));
}
if (type2 instanceof PsiIntersectionType) {
return getLeastUpperBound(type2, type1, compared, manager);
}
if (type1 instanceof PsiClassType && type2 instanceof PsiClassType) {
PsiClassType.ClassResolveResult classResolveResult1 =
((PsiClassType) type1).resolveGenerics();
PsiClassType.ClassResolveResult classResolveResult2 =
((PsiClassType) type2).resolveGenerics();
PsiClass aClass = classResolveResult1.getElement();
PsiClass bClass = classResolveResult2.getElement();
if (aClass == null || bClass == null) {
return PsiType.getJavaLangObject(manager, GlobalSearchScope.allScope(manager.getProject()));
}
PsiClass[] supers = getLeastUpperClasses(aClass, bClass);
if (supers.length == 0) {
return PsiType.getJavaLangObject(manager, aClass.getResolveScope());
}
PsiClassType[] conjuncts = new PsiClassType[supers.length];
for (int i = 0; i < supers.length; i++) {
PsiClass aSuper = supers[i];
PsiSubstitutor subst1 =
TypeConversionUtil.getSuperClassSubstitutor(
aSuper, aClass, classResolveResult1.getSubstitutor());
PsiSubstitutor subst2 =
TypeConversionUtil.getSuperClassSubstitutor(
aSuper, bClass, classResolveResult2.getSubstitutor());
PsiSubstitutor substitutor = PsiSubstitutor.EMPTY;
for (PsiTypeParameter parameter : PsiUtil.typeParametersIterable(aSuper)) {
PsiType mapping1 = subst1.substitute(parameter);
PsiType mapping2 = subst2.substitute(parameter);
if (mapping1 != null && mapping2 != null) {
substitutor =
substitutor.put(
parameter,
getLeastContainingTypeArgument(
mapping1,
mapping2,
compared,
manager,
type1.equals(mapping1) && type2.equals(mapping2) ? aSuper : null,
parameter));
} else {
substitutor = substitutor.put(parameter, null);
}
}
conjuncts[i] =
JavaPsiFacade.getInstance(manager.getProject())
.getElementFactory()
.createType(aSuper, substitutor);
}
return PsiIntersectionType.createIntersection(conjuncts);
}
if (type2 instanceof PsiArrayType && !(type1 instanceof PsiArrayType)) {
return getLeastUpperBound(type2, type1, compared, manager);
}
if (type1 instanceof PsiArrayType) {
PsiElementFactory factory =
JavaPsiFacade.getInstance(manager.getProject()).getElementFactory();
GlobalSearchScope all = GlobalSearchScope.allScope(manager.getProject());
PsiClassType serializable =
factory.createTypeByFQClassName(CommonClassNames.JAVA_IO_SERIALIZABLE, all);
PsiClassType cloneable =
factory.createTypeByFQClassName(CommonClassNames.JAVA_LANG_CLONEABLE, all);
PsiType arraySupers = PsiIntersectionType.createIntersection(serializable, cloneable);
return getLeastUpperBound(arraySupers, type2, compared, manager);
}
return PsiType.getJavaLangObject(manager, GlobalSearchScope.allScope(manager.getProject()));
}
@Nullable
public static PsiType getVariableTypeByExpressionType(
@Nullable PsiType type, final boolean openCaptured) {
if (type == null) return null;
if (type instanceof PsiCapturedWildcardType) {
type = ((PsiCapturedWildcardType) type).getWildcard();
}
PsiType transformed =
type.accept(
new PsiTypeVisitor<PsiType>() {
@Override
public PsiType visitArrayType(PsiArrayType arrayType) {
PsiType componentType = arrayType.getComponentType();
PsiType type = componentType.accept(this);
if (type == componentType) return arrayType;
return type.createArrayType();
}
@Override
public PsiType visitType(PsiType type) {
return type;
}
@Override
public PsiType visitWildcardType(final PsiWildcardType wildcardType) {
final PsiType bound = wildcardType.getBound();
PsiManager manager = wildcardType.getManager();
if (bound != null) {
final PsiType acceptedBound = bound.accept(this);
if (acceptedBound instanceof PsiWildcardType) {
if (((PsiWildcardType) acceptedBound).isExtends() != wildcardType.isExtends())
return PsiWildcardType.createUnbounded(manager);
return acceptedBound;
}
if (wildcardType.isExtends()
&& acceptedBound.equalsToText(CommonClassNames.JAVA_LANG_OBJECT))
return PsiWildcardType.createUnbounded(manager);
if (acceptedBound.equals(bound)) return wildcardType;
return wildcardType.isExtends()
? PsiWildcardType.createExtends(manager, acceptedBound)
: PsiWildcardType.createSuper(manager, acceptedBound);
}
return wildcardType;
}
@Override
public PsiType visitCapturedWildcardType(
PsiCapturedWildcardType capturedWildcardType) {
return openCaptured
? capturedWildcardType.getWildcard().accept(this)
: capturedWildcardType;
}
@Override
public PsiType visitClassType(PsiClassType classType) {
PsiClassType.ClassResolveResult resolveResult = classType.resolveGenerics();
PsiClass aClass = resolveResult.getElement();
if (aClass == null) return classType;
boolean toExtend = false;
PsiSubstitutor substitutor = PsiSubstitutor.EMPTY;
for (PsiTypeParameter typeParameter : PsiUtil.typeParametersIterable(aClass)) {
PsiType typeArgument = resolveResult.getSubstitutor().substitute(typeParameter);
if (typeArgument instanceof PsiCapturedWildcardType) toExtend = true;
if (typeArgument instanceof PsiWildcardType
&& ((PsiWildcardType) typeArgument).getBound()
instanceof PsiIntersectionType) {
toExtend = true;
}
PsiType toPut;
if (typeArgument == null) {
toPut = null;
} else {
final PsiType accepted = typeArgument.accept(this);
if (typeArgument instanceof PsiIntersectionType) {
toPut = PsiWildcardType.createExtends(typeParameter.getManager(), accepted);
} else {
toPut = accepted;
}
}
LOG.assertTrue(toPut == null || toPut.isValid(), toPut);
substitutor = substitutor.put(typeParameter, toPut);
}
final PsiAnnotation[] applicableAnnotations = classType.getApplicableAnnotations();
if (substitutor == PsiSubstitutor.EMPTY
&& !toExtend
&& applicableAnnotations.length == 0
&& !(aClass instanceof PsiTypeParameter)) return classType;
PsiManager manager = aClass.getManager();
PsiType result =
JavaPsiFacade.getInstance(manager.getProject())
.getElementFactory()
.createType(
aClass,
substitutor,
PsiUtil.getLanguageLevel(aClass),
applicableAnnotations);
if (toExtend) result = PsiWildcardType.createExtends(manager, result);
return result;
}
});
PsiType componentType = transformed != null ? transformed.getDeepComponentType() : null;
if (componentType instanceof PsiWildcardType) {
componentType = ((PsiWildcardType) componentType).getExtendsBound();
int dims = transformed.getArrayDimensions();
for (int i = 0; i < dims; i++) componentType = componentType.createArrayType();
return componentType;
}
return transformed;
}