@Override
public ClassifierDescriptor getClassifier(@NotNull Name name) {
// TODO: creating an FqName every time may be a performance problem
Name actualName =
resolveSession.resolveClassifierAlias(DescriptorUtils.getFqNameSafe(thisDescriptor), name);
return super.getClassifier(actualName);
}
public class DeprecatedAnnotationVisitor extends AfterAnalysisHighlightingVisitor {
private static final TokenSet PROPERTY_SET_OPERATIONS =
TokenSet.create(
JetTokens.EQ,
JetTokens.PLUSEQ,
JetTokens.MINUSEQ,
JetTokens.MULTEQ,
JetTokens.DIVEQ,
JetTokens.PERCEQ,
JetTokens.PLUSPLUS,
JetTokens.MINUSMINUS);
private static final FqName JAVA_DEPRECATED = new FqName(Deprecated.class.getName());
private static final FqName KOTLIN_DEPRECATED =
DescriptorUtils.getFqNameSafe(KotlinBuiltIns.getInstance().getDeprecatedAnnotation());
protected DeprecatedAnnotationVisitor(AnnotationHolder holder, BindingContext bindingContext) {
super(holder, bindingContext);
}
@Override
public void visitSuperExpression(@NotNull JetSuperExpression expression) {
// Deprecated for super expression. Unnecessary to mark it as Deprecated
}
@Override
public void visitReferenceExpression(@NotNull JetReferenceExpression expression) {
super.visitReferenceExpression(expression);
ResolvedCall resolvedCall = CallUtilPackage.getResolvedCall(expression, bindingContext);
if (resolvedCall != null && resolvedCall instanceof VariableAsFunctionResolvedCall) {
// Deprecated for invoke()
JetCallExpression parent = PsiTreeUtil.getParentOfType(expression, JetCallExpression.class);
if (parent != null) {
reportAnnotationIfNeeded(parent, resolvedCall.getResultingDescriptor(), true);
}
}
if (expression.getNode().getElementType() == JetNodeTypes.OPERATION_REFERENCE) {
// Deprecated for operations (mark as warning)
checkDeprecatedForOperations(expression);
} else {
checkDeprecatedForReferenceExpression(expression);
}
}
private void checkDeprecatedForReferenceExpression(@NotNull JetReferenceExpression expression) {
DeclarationDescriptor target = bindingContext.get(BindingContext.REFERENCE_TARGET, expression);
if (target != null) {
if (target instanceof ConstructorDescriptor) {
checkConstructorDescriptor(expression, target);
} else if (target instanceof ClassDescriptor) {
checkClassDescriptor(expression, (ClassDescriptor) target);
} else if (target instanceof PropertyDescriptor) {
checkPropertyDescriptor(expression, (PropertyDescriptor) target);
} else if (target instanceof FunctionDescriptor) {
checkFunctionDescriptor(expression, target);
}
}
}
private void checkFunctionDescriptor(JetExpression expression, DeclarationDescriptor target) {
// Deprecated for Function
reportAnnotationIfNeeded(expression, target, expression instanceof JetArrayAccessExpression);
}
private void checkConstructorDescriptor(
@NotNull JetExpression expression, @NotNull DeclarationDescriptor target) {
// Deprecated for Class and for Constructor
DeclarationDescriptor containingDeclaration = target.getContainingDeclaration();
if (containingDeclaration != null) {
if (!reportAnnotationIfNeeded(expression, containingDeclaration)) {
reportAnnotationIfNeeded(expression, target);
}
}
}
private void checkClassDescriptor(
@NotNull JetExpression expression, @NotNull ClassDescriptor target) {
// Deprecated for Class, for ClassObject (if reference isn't in UserType or in ModifierList
// (trait))
if (!reportAnnotationIfNeeded(expression, target)) {
if (PsiTreeUtil.getParentOfType(expression, JetUserType.class) == null
&& PsiTreeUtil.getParentOfType(expression, JetModifierList.class) == null) {
ClassDescriptor classObjectDescriptor = target.getClassObjectDescriptor();
if (classObjectDescriptor != null) {
reportAnnotationIfNeeded(expression, classObjectDescriptor);
}
}
}
}
private void checkPropertyDescriptor(
@NotNull JetExpression expression, @NotNull PropertyDescriptor propertyDescriptor) {
// Deprecated for Property
if (reportAnnotationIfNeeded(expression, propertyDescriptor, propertyDescriptor.isVar())) {
return;
}
// Deprecated for Getter (val, var), Setter (var)
if (!propertyDescriptor.isVar()) {
checkPropertyGetter(propertyDescriptor, expression);
} else {
IElementType operation = null;
JetBinaryExpression binaryExpression =
PsiTreeUtil.getParentOfType(expression, JetBinaryExpression.class);
if (binaryExpression != null) {
JetExpression left = binaryExpression.getLeft();
if (left == expression) {
operation = binaryExpression.getOperationToken();
} else {
JetReferenceExpression[] jetReferenceExpressions =
PsiTreeUtil.getChildrenOfType(left, JetReferenceExpression.class);
if (jetReferenceExpressions != null) {
for (JetReferenceExpression expr : jetReferenceExpressions) {
if (expr == expression) {
operation = binaryExpression.getOperationToken();
break;
}
}
}
}
} else {
JetUnaryExpression unaryExpression =
PsiTreeUtil.getParentOfType(expression, JetUnaryExpression.class);
if (unaryExpression != null) {
operation = unaryExpression.getOperationReference().getReferencedNameElementType();
}
}
if (operation != null && PROPERTY_SET_OPERATIONS.contains(operation)) {
checkPropertySetter(propertyDescriptor, expression);
} else {
checkPropertyGetter(propertyDescriptor, expression);
}
}
}
private void checkPropertySetter(
@NotNull PropertyDescriptor descriptor, @NotNull JetExpression expression) {
PropertySetterDescriptor setter = descriptor.getSetter();
if (setter != null) {
checkPropertyAccessor(setter, expression, true);
}
}
private void checkPropertyGetter(
@NotNull PropertyDescriptor descriptor, @NotNull JetExpression expression) {
PropertyGetterDescriptor getter = descriptor.getGetter();
if (getter != null) {
checkPropertyAccessor(getter, expression, descriptor.isVar());
}
}
private void checkPropertyAccessor(
@NotNull PropertyAccessorDescriptor accessor,
@NotNull JetExpression expression,
boolean isCrossingDisallowed) {
reportAnnotationIfNeeded(expression, accessor, isCrossingDisallowed);
}
private void checkDeprecatedForOperations(@NotNull JetReferenceExpression expression) {
DeclarationDescriptor target = bindingContext.get(BindingContext.REFERENCE_TARGET, expression);
if (target != null) {
reportAnnotationIfNeeded(expression, target, true);
}
}
private boolean reportAnnotationIfNeeded(
@NotNull PsiElement element, @NotNull DeclarationDescriptor descriptor) {
return reportAnnotationIfNeeded(element, descriptor, false);
}
private boolean reportAnnotationIfNeeded(
@NotNull PsiElement element,
@NotNull DeclarationDescriptor descriptor,
boolean isCrossingDisallowed) {
AnnotationDescriptor deprecated = getDeprecated(descriptor);
if (deprecated != null) {
if (isCrossingDisallowed) {
holder
.createWarningAnnotation(element, composeTooltipString(descriptor, deprecated))
.setTextAttributes(CodeInsightColors.WARNINGS_ATTRIBUTES);
} else {
holder
.createWarningAnnotation(element, composeTooltipString(descriptor, deprecated))
.setTextAttributes(CodeInsightColors.DEPRECATED_ATTRIBUTES);
}
return true;
}
return false;
}
@Nullable
private static AnnotationDescriptor getDeprecated(DeclarationDescriptor descriptor) {
AnnotationDescriptor kotlinDeprecated =
descriptor.getAnnotations().findAnnotation(KOTLIN_DEPRECATED);
return kotlinDeprecated != null
? kotlinDeprecated
: descriptor.getAnnotations().findAnnotation(JAVA_DEPRECATED);
}
private static String composeTooltipString(
@NotNull DeclarationDescriptor declarationDescriptor,
@NotNull AnnotationDescriptor descriptor) {
String fact = "'" + getDescriptorString(declarationDescriptor) + "' is deprecated.";
String message = getMessageFromAnnotationDescriptor(descriptor);
return message == null ? fact : fact + " " + message;
}
@Nullable
private static String getMessageFromAnnotationDescriptor(
@NotNull AnnotationDescriptor descriptor) {
ClassDescriptor classDescriptor = TypeUtils.getClassDescriptor(descriptor.getType());
if (classDescriptor != null) {
ValueParameterDescriptor parameter =
DescriptorResolverUtils.getAnnotationParameterByName(
DEFAULT_ANNOTATION_MEMBER_NAME, classDescriptor);
if (parameter != null) {
CompileTimeConstant<?> valueArgument = descriptor.getValueArgument(parameter);
if (valueArgument != null) {
Object value = valueArgument.getValue();
if (value instanceof String) {
return String.valueOf(value);
}
}
}
}
return null;
}
private static String getDescriptorString(@NotNull DeclarationDescriptor descriptor) {
if (descriptor instanceof ClassDescriptor) {
return DescriptorUtils.getFqName(descriptor).asString();
} else if (descriptor instanceof ConstructorDescriptor) {
DeclarationDescriptor containingDeclaration = descriptor.getContainingDeclaration();
assert containingDeclaration != null;
return "constructor for " + containingDeclaration.getName();
} else if (descriptor instanceof PropertyGetterDescriptor) {
return "getter for "
+ ((PropertyGetterDescriptor) descriptor).getCorrespondingProperty().getName();
} else if (descriptor instanceof PropertySetterDescriptor) {
return "setter for "
+ ((PropertySetterDescriptor) descriptor).getCorrespondingProperty().getName();
} else if (descriptor instanceof PropertyDescriptor) {
if (((PropertyDescriptor) descriptor).isVar()) {
return "var " + descriptor.getName();
}
return "val " + descriptor.getName();
} else if (descriptor instanceof FunctionDescriptor) {
return "fun "
+ descriptor.getName()
+ DescriptorRenderer.FQ_NAMES_IN_TYPES.renderFunctionParameters(
(FunctionDescriptor) descriptor);
}
return DescriptorRenderer.FQ_NAMES_IN_TYPES.render(descriptor);
}
}