@Override
public PsiType visitClassType(PsiClassType classType) {
final PsiClassType.ClassResolveResult resolveResult = classType.resolveGenerics();
final PsiClass aClass = resolveResult.getElement();
if (aClass == null) return classType;
PsiUtilCore.ensureValid(aClass);
if (aClass instanceof PsiTypeParameter) {
final PsiTypeParameter typeParameter = (PsiTypeParameter) aClass;
if (containsInMap(typeParameter)) {
PsiType result = substituteTypeParameter(typeParameter);
if (result != null) {
PsiUtil.ensureValidType(result);
}
return result;
}
return classType;
}
final Map<PsiTypeParameter, PsiType> hashMap = new HashMap<PsiTypeParameter, PsiType>(2);
if (!processClass(aClass, resolveResult.getSubstitutor(), hashMap)) {
return null;
}
PsiClassType result =
JavaPsiFacade.getElementFactory(aClass.getProject())
.createType(aClass, createSubstitutor(hashMap), classType.getLanguageLevel());
PsiUtil.ensureValidType(result);
return result;
}
@Override
public void ensureValid() {
for (PsiType type : mySubstitutionMap.values()) {
if (type != null) {
PsiUtil.ensureValidType(type);
}
}
}
@Override
public PsiType substitute(PsiType type) {
if (type == null) {
//noinspection ConstantConditions
return null;
}
PsiUtil.ensureValidType(type);
PsiType substituted = type.accept(mySimpleSubstitutionVisitor);
return correctExternalSubstitution(substituted, type);
}
private DfaVariableValue(
@NotNull PsiModifierListOwner variable,
@Nullable PsiType varType,
boolean isNegated,
DfaValueFactory factory,
@Nullable DfaVariableValue qualifier) {
super(factory);
myVariable = variable;
myIsNegated = isNegated;
myQualifier = qualifier;
myVarType = varType;
DfaValue typeValue = myFactory.createTypeValue(varType, Nullness.UNKNOWN);
myTypeValue = typeValue instanceof DfaTypeValue ? (DfaTypeValue) typeValue : null;
if (varType != null && !varType.isValid()) {
PsiUtil.ensureValidType(
varType, "Variable: " + variable + " of class " + variable.getClass());
}
}
private static ExpectedTypeMatching getExpectedTypeMatching(
LookupElement item, ExpectedTypeInfo[] expectedInfos) {
PsiType itemType = JavaCompletionUtil.getLookupElementType(item);
if (itemType != null) {
PsiUtil.ensureValidType(itemType);
for (final ExpectedTypeInfo expectedInfo : expectedInfos) {
final PsiType defaultType = expectedInfo.getDefaultType();
final PsiType expectedType = expectedInfo.getType();
assert expectedType.isValid();
assert defaultType.isValid();
if (defaultType != expectedType && defaultType.isAssignableFrom(itemType)) {
return ExpectedTypeMatching.ofDefaultType;
}
if (expectedType.isAssignableFrom(itemType)) {
return ExpectedTypeMatching.expected;
}
}
}
if (hasNonVoid(expectedInfos)) {
if (item.getObject() instanceof PsiKeyword) {
String keyword = ((PsiKeyword) item.getObject()).getText();
if (PsiKeyword.NEW.equals(keyword) || PsiKeyword.NULL.equals(keyword)) {
return ExpectedTypeMatching.maybeExpected;
}
}
} else if (expectedInfos.length > 0) {
return ExpectedTypeMatching.unexpected;
}
return ExpectedTypeMatching.normal;
}
/** Types should be proceed by the callers themselves */
@Deprecated
public static PsiType normalizeWildcardTypeByPosition(
@NotNull PsiType type, @NotNull PsiExpression expression) {
PsiUtilCore.ensureValid(expression);
PsiUtil.ensureValidType(type);
PsiExpression topLevel = expression;
while (topLevel.getParent() instanceof PsiArrayAccessExpression
&& ((PsiArrayAccessExpression) topLevel.getParent()).getArrayExpression() == topLevel) {
topLevel = (PsiExpression) topLevel.getParent();
}
if (topLevel instanceof PsiArrayAccessExpression && !PsiUtil.isAccessedForWriting(topLevel)) {
return PsiUtil.captureToplevelWildcards(type, expression);
}
final PsiType normalized = doNormalizeWildcardByPosition(type, expression, topLevel);
LOG.assertTrue(normalized.isValid(), type);
if (normalized instanceof PsiClassType && !PsiUtil.isAccessedForWriting(topLevel)) {
return PsiUtil.captureToplevelWildcards(normalized, expression);
}
return normalized;
}
private void buildText(
@NotNull PsiClass aClass,
@NotNull PsiSubstitutor substitutor,
@NotNull StringBuilder buffer,
@NotNull TextType textType,
boolean annotated) {
if (aClass instanceof PsiAnonymousClass) {
ClassResolveResult baseResolveResult =
((PsiAnonymousClass) aClass).getBaseClassType().resolveGenerics();
PsiClass baseClass = baseResolveResult.getElement();
if (baseClass != null) {
buildText(baseClass, baseResolveResult.getSubstitutor(), buffer, textType, false);
}
return;
}
boolean qualified = textType != TextType.PRESENTABLE;
PsiClass enclosingClass = null;
if (!aClass.hasModifierProperty(PsiModifier.STATIC)) {
PsiElement parent = aClass.getParent();
if (parent instanceof PsiClass && !(parent instanceof PsiAnonymousClass)) {
enclosingClass = (PsiClass) parent;
}
}
if (enclosingClass != null) {
buildText(enclosingClass, substitutor, buffer, textType, false);
buffer.append('.');
} else if (qualified) {
String fqn = aClass.getQualifiedName();
if (fqn != null) {
String prefix = StringUtil.getPackageName(fqn);
if (!StringUtil.isEmpty(prefix)) {
buffer.append(prefix);
buffer.append('.');
}
}
}
if (annotated) {
PsiNameHelper.appendAnnotations(buffer, getAnnotations(), qualified);
}
buffer.append(aClass.getName());
PsiTypeParameter[] typeParameters = aClass.getTypeParameters();
if (typeParameters.length > 0) {
int pos = buffer.length();
buffer.append('<');
for (int i = 0; i < typeParameters.length; i++) {
PsiTypeParameter typeParameter = typeParameters[i];
PsiUtilCore.ensureValid(typeParameter);
if (i > 0) {
buffer.append(',');
if (textType == TextType.PRESENTABLE) buffer.append(' ');
}
PsiType substitutionResult = substitutor.substitute(typeParameter);
if (substitutionResult == null) {
buffer.setLength(pos);
pos = -1;
break;
}
PsiUtil.ensureValidType(substitutionResult);
if (textType == TextType.PRESENTABLE) {
buffer.append(substitutionResult.getPresentableText());
} else if (textType == TextType.CANONICAL) {
buffer.append(substitutionResult.getCanonicalText(annotated));
} else {
buffer.append(substitutionResult.getInternalCanonicalText());
}
}
if (pos >= 0) {
buffer.append('>');
}
}
}