Revert "YT-19324: move YT provider to ydb/library/yql"

This reverts commit ca272f12fdd0e8d5c3e957fc87939148f1caaf72, reversing
changes made to 49f8acfc8b0b5c0071b804423bcf53fda26c7c12.

1 files changed, 0 insertions, 396 deletions

diff --git a/library/cpp/skiff/skiff_validator.cpp b/library/cpp/skiff/skiff_validator.cpp
deleted file mode 100644
index 1b1b98d5a6..0000000000
--- a/library/cpp/skiff/skiff_validator.cpp
+++ /dev/null
@@ -1,396 +0,0 @@
-#include "skiff.h"
-#include "skiff_validator.h"
-
-#include <vector>
-#include <stack>
-
-namespace NSkiff {
-
-////////////////////////////////////////////////////////////////////////////////
-
-struct IValidatorNode;
-
-using TValidatorNodeList = std::vector<std::shared_ptr<IValidatorNode>>;
-using TSkiffSchemaList = std::vector<std::shared_ptr<TSkiffSchema>>;
-
-static std::shared_ptr<IValidatorNode> CreateUsageValidatorNode(const std::shared_ptr<TSkiffSchema>& skiffSchema);
-static TValidatorNodeList CreateUsageValidatorNodeList(const TSkiffSchemaList& skiffSchemaList);
-
-////////////////////////////////////////////////////////////////////////////////
-
-template <typename T>
-inline void ThrowUnexpectedParseWrite(T wireType)
-{
-    ythrow TSkiffException() << "Unexpected parse/write of \"" << ::ToString(wireType) << "\" token";
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-struct IValidatorNode
-{
-    virtual ~IValidatorNode() = default;
-
-    virtual void OnBegin(TValidatorNodeStack* /*validatorNodeStack*/)
-    { }
-
-    virtual void OnChildDone(TValidatorNodeStack* /*validatorNodeStack*/)
-    {
-        Y_FAIL();
-    }
-
-    virtual void OnSimpleType(TValidatorNodeStack* /*validatorNodeStack*/, EWireType wireType)
-    {
-        ThrowUnexpectedParseWrite(wireType);
-    }
-
-    virtual void BeforeVariant8Tag()
-    {
-        ThrowUnexpectedParseWrite(EWireType::Variant8);
-    }
-
-    virtual void OnVariant8Tag(TValidatorNodeStack* /*validatorNodeStack*/, ui8 /*tag*/)
-    {
-        IValidatorNode::BeforeVariant8Tag();
-    }
-
-    virtual void BeforeVariant16Tag()
-    {
-        ThrowUnexpectedParseWrite(EWireType::Variant16);
-    }
-
-    virtual void OnVariant16Tag(TValidatorNodeStack* /*validatorNodeStack*/, ui16 /*tag*/)
-    {
-        IValidatorNode::BeforeVariant16Tag();
-    }
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-class TValidatorNodeStack
-{
-public:
-    explicit TValidatorNodeStack(std::shared_ptr<IValidatorNode> validator)
-        : RootValidator_(std::move(validator))
-    { }
-
-    void PushValidator(IValidatorNode* validator)
-    {
-        ValidatorStack_.push(validator);
-        validator->OnBegin(this);
-    }
-
-    void PopValidator()
-    {
-        Y_VERIFY(!ValidatorStack_.empty());
-        ValidatorStack_.pop();
-        if (!ValidatorStack_.empty()) {
-            ValidatorStack_.top()->OnChildDone(this);
-        }
-    }
-
-    void PushRootIfRequired()
-    {
-        if (ValidatorStack_.empty()) {
-            PushValidator(RootValidator_.get());
-        }
-    }
-
-    IValidatorNode* Top() const
-    {
-        Y_VERIFY(!ValidatorStack_.empty());
-        return ValidatorStack_.top();
-    }
-
-    bool IsFinished() const
-    {
-        return ValidatorStack_.empty();
-    }
-
-private:
-    const std::shared_ptr<IValidatorNode> RootValidator_;
-    std::stack<IValidatorNode*> ValidatorStack_;
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-class TNothingTypeValidator
-    : public IValidatorNode
-{
-public:
-    void OnBegin(TValidatorNodeStack* validatorNodeStack) override
-    {
-        validatorNodeStack->PopValidator();
-    }
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-class TSimpleTypeUsageValidator
-    : public IValidatorNode
-{
-public:
-    explicit TSimpleTypeUsageValidator(EWireType type)
-        : Type_(type)
-    { }
-
-    void OnSimpleType(TValidatorNodeStack* validatorNodeStack, EWireType type) override
-    {
-        if (type != Type_) {
-            ThrowUnexpectedParseWrite(type);
-        }
-        validatorNodeStack->PopValidator();
-    }
-
-private:
-    const EWireType Type_;
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-template <typename TTag>
-void ValidateVariantTag(TValidatorNodeStack* validatorNodeStack, TTag tag, const TValidatorNodeList& children)
-{
-    if (tag == EndOfSequenceTag<TTag>()) {
-        // Root validator is pushed into the stack before variant tag
-        // if the stack is empty.
-        validatorNodeStack->PopValidator();
-    } else if (tag >= children.size()) {
-        ythrow TSkiffException() << "Variant tag \"" << tag << "\" "
-            << "exceeds number of children \"" << children.size();
-    } else {
-        validatorNodeStack->PushValidator(children[tag].get());
-    }
-}
-
-class TVariant8TypeUsageValidator
-    : public IValidatorNode
-{
-public:
-    explicit TVariant8TypeUsageValidator(TValidatorNodeList children)
-        : Children_(std::move(children))
-    { }
-
-    void BeforeVariant8Tag() override
-    { }
-
-    void OnVariant8Tag(TValidatorNodeStack* validatorNodeStack, ui8 tag) override
-    {
-        ValidateVariantTag(validatorNodeStack, tag, Children_);
-    }
-
-    void OnChildDone(TValidatorNodeStack* validatorNodeStack) override
-    {
-        validatorNodeStack->PopValidator();
-    }
-
-private:
-    const TValidatorNodeList Children_;
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-class TVariant16TypeUsageValidator
-    : public IValidatorNode
-{
-public:
-    explicit TVariant16TypeUsageValidator(TValidatorNodeList children)
-        : Children_(std::move(children))
-    { }
-
-    void BeforeVariant16Tag() override
-    { }
-
-    void OnVariant16Tag(TValidatorNodeStack* validatorNodeStack, ui16 tag) override
-    {
-        ValidateVariantTag(validatorNodeStack, tag, Children_);
-    }
-
-    void OnChildDone(TValidatorNodeStack* validatorNodeStack) override
-    {
-        validatorNodeStack->PopValidator();
-    }
-
-private:
-    const TValidatorNodeList Children_;
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-class TRepeatedVariant8TypeUsageValidator
-    : public IValidatorNode
-{
-public:
-    explicit TRepeatedVariant8TypeUsageValidator(TValidatorNodeList children)
-        : Children_(std::move(children))
-    { }
-
-    void BeforeVariant8Tag() override
-    { }
-
-    void OnVariant8Tag(TValidatorNodeStack* validatorNodeStack, ui8 tag) override
-    {
-        ValidateVariantTag(validatorNodeStack, tag, Children_);
-    }
-
-    void OnChildDone(TValidatorNodeStack* /*validatorNodeStack*/) override
-    { }
-
-private:
-    const TValidatorNodeList Children_;
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-class TRepeatedVariant16TypeUsageValidator
-    : public IValidatorNode
-{
-public:
-    explicit TRepeatedVariant16TypeUsageValidator(TValidatorNodeList children)
-        : Children_(std::move(children))
-    { }
-
-    void BeforeVariant16Tag() override
-    { }
-
-    void OnVariant16Tag(TValidatorNodeStack* validatorNodeStack, ui16 tag) override
-    {
-        ValidateVariantTag(validatorNodeStack, tag, Children_);
-    }
-
-    void OnChildDone(TValidatorNodeStack* /*validatorNodeStack*/) override
-    { }
-
-private:
-    const TValidatorNodeList Children_;
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-class TTupleTypeUsageValidator
-    : public IValidatorNode
-{
-public:
-    explicit TTupleTypeUsageValidator(TValidatorNodeList children)
-        : Children_(std::move(children))
-    { }
-
-    void OnBegin(TValidatorNodeStack* validatorNodeStack) override
-    {
-        Position_ = 0;
-        if (!Children_.empty()) {
-            validatorNodeStack->PushValidator(Children_[0].get());
-        }
-    }
-
-    void OnChildDone(TValidatorNodeStack* validatorNodeStack) override
-    {
-        Position_++;
-        if (Position_ < Children_.size()) {
-            validatorNodeStack->PushValidator(Children_[Position_].get());
-        } else {
-            validatorNodeStack->PopValidator();
-        }
-    }
-
-private:
-    const TValidatorNodeList Children_;
-    ui32 Position_ = 0;
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-TSkiffValidator::TSkiffValidator(std::shared_ptr<TSkiffSchema> skiffSchema)
-    : Context_(std::make_unique<TValidatorNodeStack>(CreateUsageValidatorNode(std::move(skiffSchema))))
-{ }
-
-TSkiffValidator::~TSkiffValidator()
-{ }
-
-void TSkiffValidator::BeforeVariant8Tag()
-{
-    Context_->PushRootIfRequired();
-    Context_->Top()->BeforeVariant8Tag();
-}
-
-void TSkiffValidator::OnVariant8Tag(ui8 tag)
-{
-    Context_->PushRootIfRequired();
-    Context_->Top()->OnVariant8Tag(Context_.get(), tag);
-}
-
-void TSkiffValidator::BeforeVariant16Tag()
-{
-    Context_->PushRootIfRequired();
-    Context_->Top()->BeforeVariant16Tag();
-}
-
-void TSkiffValidator::OnVariant16Tag(ui16 tag)
-{
-    Context_->PushRootIfRequired();
-    Context_->Top()->OnVariant16Tag(Context_.get(), tag);
-}
-
-void TSkiffValidator::OnSimpleType(EWireType value)
-{
-    Context_->PushRootIfRequired();
-    Context_->Top()->OnSimpleType(Context_.get(), value);
-}
-
-void TSkiffValidator::ValidateFinished()
-{
-    if (!Context_->IsFinished()) {
-        ythrow TSkiffException() << "Parse/write is not finished";
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-TValidatorNodeList CreateUsageValidatorNodeList(const TSkiffSchemaList& skiffSchemaList)
-{
-    TValidatorNodeList result;
-    result.reserve(skiffSchemaList.size());
-    for (const auto& skiffSchema : skiffSchemaList) {
-        result.push_back(CreateUsageValidatorNode(skiffSchema));
-    }
-    return result;
-}
-
-std::shared_ptr<IValidatorNode> CreateUsageValidatorNode(const std::shared_ptr<TSkiffSchema>& skiffSchema)
-{
-    switch (skiffSchema->GetWireType()) {
-        case EWireType::Int8:
-        case EWireType::Int16:
-        case EWireType::Int32:
-        case EWireType::Int64:
-        case EWireType::Int128:
-
-        case EWireType::Uint8:
-        case EWireType::Uint16:
-        case EWireType::Uint32:
-        case EWireType::Uint64:
-        case EWireType::Uint128:
-
-        case EWireType::Double:
-        case EWireType::Boolean:
-        case EWireType::String32:
-        case EWireType::Yson32:
-            return std::make_shared<TSimpleTypeUsageValidator>(skiffSchema->GetWireType());
-        case EWireType::Nothing:
-            return std::make_shared<TNothingTypeValidator>();
-        case EWireType::Tuple:
-            return std::make_shared<TTupleTypeUsageValidator>(CreateUsageValidatorNodeList(skiffSchema->GetChildren()));
-        case EWireType::Variant8:
-            return std::make_shared<TVariant8TypeUsageValidator>(CreateUsageValidatorNodeList(skiffSchema->GetChildren()));
-        case EWireType::Variant16:
-            return std::make_shared<TVariant16TypeUsageValidator>(CreateUsageValidatorNodeList(skiffSchema->GetChildren()));
-        case EWireType::RepeatedVariant8:
-            return std::make_shared<TRepeatedVariant8TypeUsageValidator>(CreateUsageValidatorNodeList(skiffSchema->GetChildren()));
-        case EWireType::RepeatedVariant16:
-            return std::make_shared<TRepeatedVariant16TypeUsageValidator>(CreateUsageValidatorNodeList(skiffSchema->GetChildren()));
-    }
-    Y_FAIL();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NSkiff