private void checkAccessors(
@NotNull JetProperty property, @NotNull PropertyDescriptor propertyDescriptor) {
for (JetPropertyAccessor accessor : property.getAccessors()) {
PropertyAccessorDescriptor propertyAccessorDescriptor =
accessor.isGetter() ? propertyDescriptor.getGetter() : propertyDescriptor.getSetter();
assert propertyAccessorDescriptor != null
: "No property accessor descriptor for " + property.getText();
modifiersChecker.checkModifiersForDeclaration(accessor, propertyAccessorDescriptor);
modifiersChecker.reportIllegalModalityModifiers(accessor);
}
JetPropertyAccessor getter = property.getGetter();
PropertyGetterDescriptor getterDescriptor = propertyDescriptor.getGetter();
JetModifierList getterModifierList = getter != null ? getter.getModifierList() : null;
if (getterModifierList != null && getterDescriptor != null) {
Map<JetModifierKeywordToken, ASTNode> nodes =
ModifiersChecker.getNodesCorrespondingToModifiers(
getterModifierList,
Sets.newHashSet(
JetTokens.PUBLIC_KEYWORD,
JetTokens.PROTECTED_KEYWORD,
JetTokens.PRIVATE_KEYWORD,
JetTokens.INTERNAL_KEYWORD));
if (getterDescriptor.getVisibility() != propertyDescriptor.getVisibility()) {
for (ASTNode node : nodes.values()) {
trace.report(Errors.GETTER_VISIBILITY_DIFFERS_FROM_PROPERTY_VISIBILITY.on(node.getPsi()));
}
} else {
for (ASTNode node : nodes.values()) {
trace.report(Errors.REDUNDANT_MODIFIER_IN_GETTER.on(node.getPsi()));
}
}
}
}
public void resolvePropertyAccessors(
@NotNull BodiesResolveContext c,
@NotNull JetProperty property,
@NotNull PropertyDescriptor propertyDescriptor) {
ObservableBindingTrace fieldAccessTrackingTrace = createFieldTrackingTrace(propertyDescriptor);
JetPropertyAccessor getter = property.getGetter();
PropertyGetterDescriptor getterDescriptor = propertyDescriptor.getGetter();
if (getter != null && getterDescriptor != null) {
LexicalScope accessorScope = makeScopeForPropertyAccessor(c, getter, propertyDescriptor);
ForceResolveUtil.forceResolveAllContents(getterDescriptor.getAnnotations());
resolveFunctionBody(
c.getOuterDataFlowInfo(),
fieldAccessTrackingTrace,
getter,
getterDescriptor,
accessorScope);
}
JetPropertyAccessor setter = property.getSetter();
PropertySetterDescriptor setterDescriptor = propertyDescriptor.getSetter();
if (setter != null && setterDescriptor != null) {
LexicalScope accessorScope = makeScopeForPropertyAccessor(c, setter, propertyDescriptor);
ForceResolveUtil.forceResolveAllContents(setterDescriptor.getAnnotations());
resolveFunctionBody(
c.getOuterDataFlowInfo(),
fieldAccessTrackingTrace,
setter,
setterDescriptor,
accessorScope);
}
}
private void resolveProperty(
@NotNull BodiesResolveContext c,
@Nullable LexicalScope parentScope,
@NotNull JetProperty property,
@NotNull PropertyDescriptor propertyDescriptor) {
computeDeferredType(propertyDescriptor.getReturnType());
JetExpression initializer = property.getInitializer();
LexicalScope propertyScope = getScopeForProperty(c, property);
if (parentScope == null) {
parentScope = propertyScope;
}
if (initializer != null) {
resolvePropertyInitializer(
c.getOuterDataFlowInfo(), property, propertyDescriptor, initializer, propertyScope);
}
JetExpression delegateExpression = property.getDelegateExpression();
if (delegateExpression != null) {
assert initializer == null
: "Initializer should be null for delegated property : " + property.getText();
resolvePropertyDelegate(
c.getOuterDataFlowInfo(),
property,
propertyDescriptor,
delegateExpression,
parentScope,
propertyScope);
}
resolvePropertyAccessors(c, property, propertyDescriptor);
}
@NotNull
private static LexicalScope getScopeForProperty(
@NotNull BodiesResolveContext c, @NotNull JetProperty property) {
LexicalScope scope = c.getDeclaringScope(property);
assert scope != null : "Scope for property " + property.getText() + " should exists";
return scope;
}
public void resolvePropertyDelegate(
@NotNull DataFlowInfo outerDataFlowInfo,
@NotNull JetProperty jetProperty,
@NotNull PropertyDescriptor propertyDescriptor,
@NotNull JetExpression delegateExpression,
@NotNull LexicalScope parentScopeForAccessor,
@NotNull LexicalScope propertyScope) {
JetPropertyAccessor getter = jetProperty.getGetter();
if (getter != null && getter.hasBody()) {
trace.report(ACCESSOR_FOR_DELEGATED_PROPERTY.on(getter));
}
JetPropertyAccessor setter = jetProperty.getSetter();
if (setter != null && setter.hasBody()) {
trace.report(ACCESSOR_FOR_DELEGATED_PROPERTY.on(setter));
}
LexicalScope propertyDeclarationInnerScope =
JetScopeUtils.getPropertyDeclarationInnerScopeForInitializer(
propertyDescriptor, propertyScope, propertyDescriptor.getTypeParameters(), null, trace);
LexicalScope accessorScope =
JetScopeUtils.makeScopeForPropertyAccessor(
propertyDescriptor, parentScopeForAccessor, trace);
JetType delegateType =
delegatedPropertyResolver.resolveDelegateExpression(
delegateExpression,
jetProperty,
propertyDescriptor,
propertyDeclarationInnerScope,
accessorScope,
trace,
outerDataFlowInfo);
delegatedPropertyResolver.resolveDelegatedPropertyGetMethod(
propertyDescriptor, delegateExpression, delegateType, trace, accessorScope);
if (jetProperty.isVar()) {
delegatedPropertyResolver.resolveDelegatedPropertySetMethod(
propertyDescriptor, delegateExpression, delegateType, trace, accessorScope);
}
delegatedPropertyResolver.resolveDelegatedPropertyPDMethod(
propertyDescriptor, delegateExpression, delegateType, trace, accessorScope);
}
public void resolvePropertyInitializer(
@NotNull DataFlowInfo outerDataFlowInfo,
@NotNull JetProperty property,
@NotNull PropertyDescriptor propertyDescriptor,
@NotNull JetExpression initializer,
@NotNull LexicalScope scope) {
LexicalScope propertyDeclarationInnerScope =
JetScopeUtils.getPropertyDeclarationInnerScopeForInitializer(
propertyDescriptor, scope, propertyDescriptor.getTypeParameters(), null, trace);
JetType expectedTypeForInitializer =
property.getTypeReference() != null ? propertyDescriptor.getType() : NO_EXPECTED_TYPE;
if (propertyDescriptor.getCompileTimeInitializer() == null) {
expressionTypingServices.getType(
propertyDeclarationInnerScope,
initializer,
expectedTypeForInitializer,
outerDataFlowInfo,
trace);
}
}
private void checkPropertyAbstractness(
@NotNull JetProperty property,
@NotNull PropertyDescriptor propertyDescriptor,
@NotNull ClassDescriptor classDescriptor) {
JetPropertyAccessor getter = property.getGetter();
JetPropertyAccessor setter = property.getSetter();
JetModifierList modifierList = property.getModifierList();
ASTNode abstractNode =
modifierList != null ? modifierList.getModifierNode(JetTokens.ABSTRACT_KEYWORD) : null;
if (abstractNode != null) { // has abstract modifier
if (!classCanHaveAbstractMembers(classDescriptor)) {
String name = property.getName();
trace.report(
ABSTRACT_PROPERTY_IN_NON_ABSTRACT_CLASS.on(
property, name != null ? name : "", classDescriptor));
return;
}
if (classDescriptor.getKind() == ClassKind.INTERFACE) {
trace.report(ABSTRACT_MODIFIER_IN_TRAIT.on(property));
}
}
if (propertyDescriptor.getModality() == Modality.ABSTRACT) {
JetExpression initializer = property.getInitializer();
if (initializer != null) {
trace.report(ABSTRACT_PROPERTY_WITH_INITIALIZER.on(initializer));
}
JetPropertyDelegate delegate = property.getDelegate();
if (delegate != null) {
trace.report(ABSTRACT_DELEGATED_PROPERTY.on(delegate));
}
if (getter != null && getter.hasBody()) {
trace.report(ABSTRACT_PROPERTY_WITH_GETTER.on(getter));
}
if (setter != null && setter.hasBody()) {
trace.report(ABSTRACT_PROPERTY_WITH_SETTER.on(setter));
}
}
}
private void checkPropertyInitializer(
@NotNull JetProperty property, @NotNull PropertyDescriptor propertyDescriptor) {
JetPropertyAccessor getter = property.getGetter();
JetPropertyAccessor setter = property.getSetter();
boolean hasAccessorImplementation =
(getter != null && getter.hasBody()) || (setter != null && setter.hasBody());
if (propertyDescriptor.getModality() == Modality.ABSTRACT) {
if (!property.hasDelegateExpressionOrInitializer() && property.getTypeReference() == null) {
trace.report(PROPERTY_WITH_NO_TYPE_NO_INITIALIZER.on(property));
}
return;
}
DeclarationDescriptor containingDeclaration = propertyDescriptor.getContainingDeclaration();
boolean inTrait =
containingDeclaration instanceof ClassDescriptor
&& ((ClassDescriptor) containingDeclaration).getKind() == ClassKind.INTERFACE;
JetExpression initializer = property.getInitializer();
JetPropertyDelegate delegate = property.getDelegate();
boolean backingFieldRequired =
Boolean.TRUE.equals(
trace
.getBindingContext()
.get(BindingContext.BACKING_FIELD_REQUIRED, propertyDescriptor));
if (inTrait && backingFieldRequired && hasAccessorImplementation) {
trace.report(BACKING_FIELD_IN_TRAIT.on(property));
}
if (initializer == null && delegate == null) {
boolean error = false;
if (backingFieldRequired
&& !inTrait
&& Boolean.TRUE.equals(
trace.getBindingContext().get(BindingContext.IS_UNINITIALIZED, propertyDescriptor))) {
if (!(containingDeclaration instanceof ClassDescriptor) || hasAccessorImplementation) {
error = true;
trace.report(MUST_BE_INITIALIZED.on(property));
} else {
error = true;
trace.report(MUST_BE_INITIALIZED_OR_BE_ABSTRACT.on(property));
}
}
if (!error && property.getTypeReference() == null) {
trace.report(PROPERTY_WITH_NO_TYPE_NO_INITIALIZER.on(property));
}
if (inTrait && property.hasModifier(JetTokens.FINAL_KEYWORD) && backingFieldRequired) {
trace.report(FINAL_PROPERTY_IN_TRAIT.on(property));
}
return;
}
if (inTrait) {
if (delegate != null) {
trace.report(DELEGATED_PROPERTY_IN_TRAIT.on(delegate));
} else {
trace.report(PROPERTY_INITIALIZER_IN_TRAIT.on(initializer));
}
} else if (delegate == null) {
if (!backingFieldRequired) {
trace.report(PROPERTY_INITIALIZER_NO_BACKING_FIELD.on(initializer));
} else if (property.getReceiverTypeReference() != null) {
trace.report(EXTENSION_PROPERTY_WITH_BACKING_FIELD.on(initializer));
}
}
}