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#include <yql/essentials/public/udf/udf_value.h>
#include <yql/essentials/public/udf/udf_type_builder.h>
#include <yql/essentials/public/udf/udf_registrator.h>
#include <util/generic/yexception.h>
#include <util/string/cast.h>
using namespace NKikimr;
using namespace NUdf;
namespace {
//////////////////////////////////////////////////////////////////////////////
// TFromString
//////////////////////////////////////////////////////////////////////////////
class TFromString: public TBoxedValue
{
public:
static TStringRef Name() {
static auto name = TStringRef::Of("FromString");
return name;
}
private:
TUnboxedValue Run(
const IValueBuilder* valueBuilder,
const TUnboxedValuePod* args) const override
{
Y_UNUSED(valueBuilder);
auto str = args[0].AsStringRef();
int val = FromString<int>(str);
return TUnboxedValuePod(val);
}
};
//////////////////////////////////////////////////////////////////////////////
// TSum
//////////////////////////////////////////////////////////////////////////////
class TSum: public TBoxedValue
{
public:
static TStringRef Name() {
static auto name = TStringRef::Of("Sum");
return name;
}
private:
TUnboxedValue Run(
const IValueBuilder* valueBuilder,
const TUnboxedValuePod* args) const override
{
int sum = 0;
auto it = args[0].GetListIterator();
for (TUnboxedValue arg; it.Next(arg);) {
auto value = args[1].Run(valueBuilder, &arg);
sum += value.Get<int>();
}
return TUnboxedValuePod(sum);
}
};
//////////////////////////////////////////////////////////////////////////////
// TMul
//////////////////////////////////////////////////////////////////////////////
class TMul: public TBoxedValue
{
public:
static TStringRef Name() {
static auto name = TStringRef::Of("Mul");
return name;
}
private:
TUnboxedValue Run(
const IValueBuilder* valueBuilder,
const TUnboxedValuePod* args) const override
{
int mul = 1;
const auto it = args[0].GetListIterator();
for (TUnboxedValue arg; it.Next(arg);) {
auto value = args[1].Run(valueBuilder, &arg);
mul *= value.Get<int>();
}
return TUnboxedValuePod(mul);
}
};
extern const char A[] = "a";
using TNamedA = TNamedArg<i32, A>;
//////////////////////////////////////////////////////////////////////////////
// TNamedArgUdf
//////////////////////////////////////////////////////////////////////////////
class TNamedArgUdf: public TBoxedValue {
public:
static TStringRef Name() {
static auto name = TStringRef::Of("NamedArgUdf");
return name;
}
private:
TUnboxedValue Run(
const IValueBuilder* valueBuilder,
const TUnboxedValuePod* args) const override
{
Y_UNUSED(valueBuilder);
auto res = args[0] ? args[0].Get<i32>() : 123;
return TUnboxedValuePod(res + 1);
}
};
//////////////////////////////////////////////////////////////////////////////
// TReturnNamedArgCallable
//////////////////////////////////////////////////////////////////////////////
class TReturnNamedArgCallable: public TBoxedValue {
public:
static TStringRef Name() {
static auto name = TStringRef::Of("ReturnNamedArgCallable");
return name;
}
TUnboxedValue Run(
const IValueBuilder* valueBuilder,
const TUnboxedValuePod* args) const override
{
Y_UNUSED(valueBuilder);
Y_UNUSED(args);
return TUnboxedValuePod(new TNamedArgUdf());
}
};
//////////////////////////////////////////////////////////////////////////////
// TCallablesModule
//////////////////////////////////////////////////////////////////////////////
class TCallablesModule: public IUdfModule
{
public:
TStringRef Name() const {
return TStringRef::Of("Callables");
}
void CleanupOnTerminate() const final {}
void GetAllFunctions(IFunctionsSink& sink) const final {
sink.Add(TFromString::Name());
sink.Add(TSum::Name());
sink.Add(TMul::Name());
}
void BuildFunctionTypeInfo(
const TStringRef& name,
TType* userType,
const TStringRef& typeConfig,
ui32 flags,
IFunctionTypeInfoBuilder& builder) const final
{
try {
Y_UNUSED(userType);
Y_UNUSED(typeConfig);
bool typesOnly = (flags & TFlags::TypesOnly);
if (TFromString::Name() == name) {
// function signature:
// int (String)
// run config: void
builder.SimpleSignature<int(char*)>();
if (!typesOnly) {
builder.Implementation(new TFromString);
}
}
else if (TSum::Name() == name) {
// function signature:
// int (ListOf(String), int(*)(String))
// run config: void
builder.Returns<int>().Args()->
Add(builder.List()->Item<char*>())
.Add(builder.Callable()->Returns<int>().Arg<char*>())
.Done();
if (!typesOnly) {
builder.Implementation(new TSum);
}
}
else if (TMul::Name() == name) {
// function signature:
// int (ListOf(String), int(*)(String))
// run config: void
using TFuncType = int(*)(char*);
builder.SimpleSignature<int(TListType<char*>, TFuncType)>();
if (!typesOnly) {
builder.Implementation(new TMul);
}
} else if (TNamedArgUdf::Name() == name) {
builder.SimpleSignature<int(TNamedA)>();
if (!typesOnly) {
builder.Implementation(new TNamedArgUdf());
}
} else if (TReturnNamedArgCallable::Name() == name) {
builder.Returns(builder.Callable()->Returns<int>().Arg<int>().Name(A));
if (!typesOnly) {
builder.Implementation(new TReturnNamedArgCallable());
}
}
} catch (const std::exception& e) {
builder.SetError(CurrentExceptionMessage());
}
}
};
} // namespace
REGISTER_MODULES(TCallablesModule)
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