@Nullable
public static List<ValueParameterDescriptor> getSubstitutedValueParameters(
FunctionDescriptor substitutedDescriptor,
@NotNull FunctionDescriptor functionDescriptor,
@NotNull TypeSubstitutor substitutor) {
List<ValueParameterDescriptor> result = new ArrayList<ValueParameterDescriptor>();
List<ValueParameterDescriptor> unsubstitutedValueParameters =
functionDescriptor.getValueParameters();
for (int i = 0, unsubstitutedValueParametersSize = unsubstitutedValueParameters.size();
i < unsubstitutedValueParametersSize;
i++) {
ValueParameterDescriptor unsubstitutedValueParameter = unsubstitutedValueParameters.get(i);
// TODO : Lazy?
JetType substitutedType =
substitutor.substitute(unsubstitutedValueParameter.getType(), Variance.IN_VARIANCE);
JetType varargElementType = unsubstitutedValueParameter.getVarargElementType();
JetType substituteVarargElementType =
varargElementType == null
? null
: substitutor.substitute(varargElementType, Variance.IN_VARIANCE);
if (substitutedType == null) return null;
result.add(
new ValueParameterDescriptorImpl(
substitutedDescriptor,
unsubstitutedValueParameter,
unsubstitutedValueParameter.getAnnotations(),
unsubstitutedValueParameter.isVar(),
substitutedType,
substituteVarargElementType));
}
return result;
}
private JavaDescriptorResolver.ValueParameterDescriptors
modifyValueParametersAccordingToSuperMethods(
@NotNull
JavaDescriptorResolver.ValueParameterDescriptors
parameters // descriptors built by parameters resolver
) {
// we are not processing receiver type specifically:
// if this function comes from Kotlin, then we don't need to do it, if it doesn't, then it can't
// have receiver
List<ValueParameterDescriptor> resultParameters = Lists.newArrayList();
for (ValueParameterDescriptor originalParam : parameters.getDescriptors()) {
final int index = originalParam.getIndex();
List<TypeAndVariance> typesFromSuperMethods =
ContainerUtil.map(
superFunctions,
new Function<FunctionDescriptor, TypeAndVariance>() {
@Override
public TypeAndVariance fun(FunctionDescriptor superFunction) {
return new TypeAndVariance(
superFunction.getValueParameters().get(index).getType(), INVARIANT);
}
});
VarargCheckResult varargCheckResult = checkVarargInSuperFunctions(originalParam);
JetType altType =
modifyTypeAccordingToSuperMethods(
varargCheckResult.parameterType,
typesFromSuperMethods,
MEMBER_SIGNATURE_CONTRAVARIANT);
resultParameters.add(
new ValueParameterDescriptorImpl(
originalParam.getContainingDeclaration(),
index,
originalParam.getAnnotations(),
originalParam.getName(),
altType,
originalParam.declaresDefaultValue(),
varargCheckResult.isVararg
? KotlinBuiltIns.getInstance().getArrayElementType(altType)
: null));
}
JetType originalReceiverType = parameters.getReceiverType();
if (originalReceiverType != null) {
JetType substituted =
SignaturesUtil.createSubstitutorForFunctionTypeParameters(autoTypeParameterToModified)
.substitute(originalReceiverType, INVARIANT);
assert substituted != null;
return new JavaDescriptorResolver.ValueParameterDescriptors(substituted, resultParameters);
} else {
return new JavaDescriptorResolver.ValueParameterDescriptors(null, resultParameters);
}
}
