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#include "yql_makecode.h"
#include "yql_type_resource.h"
#include "yql_position.h"
#include <yql/essentials/minikql/computation/mkql_computation_node_holders.h>
#include <yql/essentials/minikql/computation/mkql_computation_node_impl.h>
namespace NKikimr {
namespace NMiniKQL {
template <NYql::TExprNode::EType Type>
struct TMakeCodeArgs;
template <>
struct TMakeCodeArgs<NYql::TExprNode::World> {
static constexpr size_t MinValue = 0;
static constexpr size_t MaxValue = 0;
};
template <>
struct TMakeCodeArgs<NYql::TExprNode::Atom> {
static constexpr size_t MinValue = 1;
static constexpr size_t MaxValue = 1;
};
template <>
struct TMakeCodeArgs<NYql::TExprNode::List> {
static constexpr size_t MinValue = 0;
static constexpr size_t MaxValue = Max<size_t>();
};
template <>
struct TMakeCodeArgs<NYql::TExprNode::Callable> {
static constexpr size_t MinValue = 1;
static constexpr size_t MaxValue = Max<size_t>();
};
template <>
struct TMakeCodeArgs<NYql::TExprNode::Lambda> {
static constexpr size_t MinValue = 2;
static constexpr size_t MaxValue = Max<size_t>();
};
template <NYql::TExprNode::EType Type>
class TMakeCodeWrapper : public TMutableComputationNode<TMakeCodeWrapper<Type>> {
typedef TMutableComputationNode<TMakeCodeWrapper<Type>> TBaseComputation;
public:
TMakeCodeWrapper(TComputationMutables& mutables, TVector<IComputationNode*>&& args, ui32 exprCtxMutableIndex, NYql::TPosition pos)
: TBaseComputation(mutables)
, Args_(std::move(args))
, ExprCtxMutableIndex_(exprCtxMutableIndex)
, Pos_(pos)
{}
NUdf::TUnboxedValue DoCalculate(TComputationContext& ctx) const {
auto exprCtxPtr = GetExprContextPtr(ctx, ExprCtxMutableIndex_);
NYql::TExprNode::TPtr retNode;
switch (Type) {
case NYql::TExprNode::Atom: {
auto strValue = Args_[0]->GetValue(ctx);
retNode = exprCtxPtr->NewAtom(Pos_, strValue.AsStringRef());
break;
}
case NYql::TExprNode::List: {
NYql::TExprNode::TListType items;
for (ui32 i = 0; i < Args_.size(); ++i) {
auto argValue = Args_[i]->GetValue(ctx);
auto iter = argValue.GetListIterator();
NUdf::TUnboxedValue codeValue;
while (iter.Next(codeValue)) {
auto code = GetYqlCode(codeValue);
items.push_back(code);
}
}
retNode = exprCtxPtr->NewList(Pos_, std::move(items));
break;
}
case NYql::TExprNode::Callable: {
NYql::TExprNode::TListType items;
auto strValue = Args_[0]->GetValue(ctx);
for (ui32 i = 1; i < Args_.size(); ++i) {
auto argValue = Args_[i]->GetValue(ctx);
auto iter = argValue.GetListIterator();
NUdf::TUnboxedValue codeValue;
while (iter.Next(codeValue)) {
auto code = GetYqlCode(codeValue);
items.push_back(code);
}
}
retNode = exprCtxPtr->NewCallable(Pos_, strValue.AsStringRef(), std::move(items));
break;
}
case NYql::TExprNode::Lambda: {
auto countValue = Args_[0]->GetValue(ctx);
const bool fixedArgs = !countValue;
const ui32 argsCount = fixedArgs ? Args_.size() - 2 : countValue.template Get<ui32>();
NYql::TExprNode::TListType argNodes;
for (ui32 i = 0; i < argsCount; ++i) {
argNodes.push_back(exprCtxPtr->NewArgument(Pos_, "arg" + ToString(i)));
}
auto argsNode = exprCtxPtr->NewArguments(Pos_, std::move(argNodes));
// fill external nodes with arguments
if (fixedArgs) {
for (ui32 i = 0; i < argsCount; ++i) {
auto arg = argsNode->ChildPtr(i);
dynamic_cast<IComputationExternalNode*>(Args_[i + 1])->SetValue(ctx,
NUdf::TUnboxedValuePod(new TYqlCodeResource(exprCtxPtr, arg)));
}
} else {
NUdf::TUnboxedValue* inplace = nullptr;
NUdf::TUnboxedValue array = ctx.HolderFactory.CreateDirectArrayHolder(argsCount, inplace);
for (ui32 i = 0; i < argsCount; ++i) {
auto arg = argsNode->ChildPtr(i);
inplace[i] = NUdf::TUnboxedValuePod(new TYqlCodeResource(exprCtxPtr, arg));
}
dynamic_cast<IComputationExternalNode*>(Args_[1])->SetValue(ctx, std::move(array));
}
// get body of lambda
auto bodyValue = Args_.back()->GetValue(ctx);
retNode = exprCtxPtr->NewLambda(Pos_, std::move(argsNode), GetYqlCode(bodyValue));
break;
}
case NYql::TExprNode::World: {
retNode = exprCtxPtr->NewWorld(Pos_);
break;
}
default:
MKQL_ENSURE(false, "Unsupported type:" << Type);
}
return NUdf::TUnboxedValuePod(new TYqlCodeResource(exprCtxPtr, retNode));
}
void RegisterDependencies() const override {
if (Type == NYql::TExprNode::Lambda) {
this->DependsOn(Args_.front());
for (size_t i = 1; i < Args_.size() - 1; ++i) {
this->Own(dynamic_cast<IComputationExternalNode*>(Args_[i]));
}
this->DependsOn(Args_.back());
} else {
for (auto arg : Args_) {
this->DependsOn(arg);
}
}
}
private:
TVector<IComputationNode*> Args_;
ui32 ExprCtxMutableIndex_;
NYql::TPosition Pos_;
};
template <NYql::TExprNode::EType Type>
IComputationNode* WrapMakeCode(TCallable& callable, const TComputationNodeFactoryContext& ctx, ui32 exprCtxMutableIndex) {
constexpr size_t expectedMinArgsCount = 3 + TMakeCodeArgs<Type>::MinValue;
constexpr size_t expectedMaxArgsCount = TMakeCodeArgs<Type>::MaxValue != Max<size_t>() ?
3 + TMakeCodeArgs<Type>::MaxValue : Max<size_t>();
MKQL_ENSURE(callable.GetInputsCount() >= expectedMinArgsCount
&& callable.GetInputsCount() <= expectedMaxArgsCount, "Expected from " << expectedMinArgsCount << " to "
<< expectedMaxArgsCount << " arg(s), but got: " << callable.GetInputsCount());
auto pos = ExtractPosition(callable);
TVector<IComputationNode*> args;
args.reserve(callable.GetInputsCount() - 3);
for (size_t i = 0; i < callable.GetInputsCount() - 3; ++i) {
args.push_back(LocateNode(ctx.NodeLocator, callable, i + 3));
}
return new TMakeCodeWrapper<Type>(ctx.Mutables, std::move(args), exprCtxMutableIndex, pos);
}
template IComputationNode* WrapMakeCode<NYql::TExprNode::World>
(TCallable& callable, const TComputationNodeFactoryContext& ctx, ui32 exprCtxMutableIndex);
template IComputationNode* WrapMakeCode<NYql::TExprNode::Atom>
(TCallable& callable, const TComputationNodeFactoryContext& ctx, ui32 exprCtxMutableIndex);
template IComputationNode* WrapMakeCode<NYql::TExprNode::List>
(TCallable& callable, const TComputationNodeFactoryContext& ctx, ui32 exprCtxMutableIndex);
template IComputationNode* WrapMakeCode<NYql::TExprNode::Callable>
(TCallable& callable, const TComputationNodeFactoryContext& ctx, ui32 exprCtxMutableIndex);
template IComputationNode* WrapMakeCode<NYql::TExprNode::Lambda>
(TCallable& callable, const TComputationNodeFactoryContext& ctx, ui32 exprCtxMutableIndex);
}
}
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