public DataClassMethodGenerator(JetClassOrObject declaration, BindingContext bindingContext) {
this.declaration = declaration;
this.bindingContext = bindingContext;
this.classDescriptor =
BindingContextUtils.getNotNull(bindingContext, BindingContext.CLASS, declaration);
this.builtIns = DescriptorUtilsKt.getBuiltIns(classDescriptor);
}
@NotNull
public Collection<KotlinType> getSupertypesForClosure(@NotNull FunctionDescriptor descriptor) {
ReceiverParameterDescriptor receiverParameter = descriptor.getExtensionReceiverParameter();
//noinspection ConstantConditions
KotlinType functionType =
DescriptorUtilsKt.getBuiltIns(descriptor)
.getFunctionType(
Annotations.Companion.getEMPTY(),
receiverParameter == null ? null : receiverParameter.getType(),
ExpressionTypingUtils.getValueParametersTypes(descriptor.getValueParameters()),
descriptor.getReturnType());
return Arrays.asList(lambda.getDefaultType(), functionType);
}
@NotNull
private static KotlinType getFunctionExpectedReturnType(
@NotNull FunctionDescriptor descriptor,
@NotNull KtElement function,
@NotNull ExpressionTypingContext context) {
KotlinType expectedType;
if (function instanceof KtSecondaryConstructor) {
expectedType = DescriptorUtilsKt.getBuiltIns(descriptor).getUnitType();
} else if (function instanceof KtFunction) {
KtFunction ktFunction = (KtFunction) function;
expectedType = context.trace.get(EXPECTED_RETURN_TYPE, ktFunction);
if ((expectedType == null)
&& (ktFunction.getTypeReference() != null || ktFunction.hasBlockBody())) {
expectedType = descriptor.getReturnType();
}
} else {
expectedType = descriptor.getReturnType();
}
return expectedType != null ? expectedType : TypeUtils.NO_EXPECTED_TYPE;
}
@NotNull
public Collection<KotlinType> getSupertypesForFunctionReference(
@NotNull FunctionDescriptor descriptor) {
ReceiverParameterDescriptor extensionReceiver = descriptor.getExtensionReceiverParameter();
ReceiverParameterDescriptor dispatchReceiver = descriptor.getDispatchReceiverParameter();
KotlinType receiverType =
extensionReceiver != null
? extensionReceiver.getType()
: dispatchReceiver != null ? dispatchReceiver.getType() : null;
//noinspection ConstantConditions
KotlinType functionType =
DescriptorUtilsKt.getBuiltIns(descriptor)
.getFunctionType(
Annotations.Companion.getEMPTY(),
receiverType,
ExpressionTypingUtils.getValueParametersTypes(descriptor.getValueParameters()),
descriptor.getReturnType());
return Arrays.asList(functionReference.getDefaultType(), functionType);
}