@Override
public JetTypeInfo visitFunctionLiteralExpression(
@NotNull JetFunctionLiteralExpression expression, ExpressionTypingContext context) {
JetBlockExpression bodyExpression = expression.getFunctionLiteral().getBodyExpression();
if (bodyExpression == null) return null;
Name callerName = getCallerName(expression);
if (callerName != null) {
context.labelResolver.enterLabeledElement(new LabelName(callerName.asString()), expression);
}
JetType expectedType = context.expectedType;
boolean functionTypeExpected =
!noExpectedType(expectedType)
&& KotlinBuiltIns.getInstance().isFunctionOrExtensionFunctionType(expectedType);
AnonymousFunctionDescriptor functionDescriptor =
createFunctionDescriptor(expression, context, functionTypeExpected);
JetType safeReturnType =
computeReturnType(expression, context, functionDescriptor, functionTypeExpected);
functionDescriptor.setReturnType(safeReturnType);
JetType receiver =
DescriptorUtils.getReceiverParameterType(functionDescriptor.getReceiverParameter());
List<JetType> valueParametersTypes =
DescriptorUtils.getValueParametersTypes(functionDescriptor.getValueParameters());
JetType resultType =
KotlinBuiltIns.getInstance()
.getFunctionType(
Collections.<AnnotationDescriptor>emptyList(),
receiver,
valueParametersTypes,
safeReturnType);
if (!noExpectedType(expectedType)
&& KotlinBuiltIns.getInstance().isFunctionOrExtensionFunctionType(expectedType)) {
// all checks were done before
return JetTypeInfo.create(resultType, context.dataFlowInfo);
}
if (callerName != null) {
context.labelResolver.exitLabeledElement(expression);
}
return DataFlowUtils.checkType(resultType, expression, context, context.dataFlowInfo);
}
