RexCase Class Reference

#include <RelAlgDag.h>

Inheritance diagram for RexCase:

Collaboration diagram for RexCase:

Public Member Functions
	RexCase ()=default
	RexCase (std::vector< std::pair< std::unique_ptr< const RexScalar >, std::unique_ptr< const RexScalar >>> &expr_pair_list, std::unique_ptr< const RexScalar > &else_expr)
size_t	branchCount () const
const RexScalar *	getWhen (const size_t idx) const
const RexScalar *	getThen (const size_t idx) const
const RexScalar *	getElse () const
std::string	toString (RelRexToStringConfig config=RelRexToStringConfig::defaults()) const override
size_t	toHash () const override
Public Member Functions inherited from Rex
virtual	~Rex ()

Private Attributes
std::vector< std::pair < std::unique_ptr< const RexScalar >, std::unique_ptr < const RexScalar > > >	expr_pair_list_
std::unique_ptr< const RexScalar >	else_expr_

Friends
struct	RelAlgDagSerializer

Additional Inherited Members
Protected Attributes inherited from Rex
std::optional< size_t >	hash_

Detailed Description

Definition at line 426 of file RelAlgDag.h.

Constructor & Destructor Documentation

RexCase::RexCase ( )

default

Referenced by toHash().

Here is the caller graph for this function:

RexCase::RexCase ( std::vector< std::pair< std::unique_ptr< const RexScalar >, std::unique_ptr< const RexScalar >>> &  expr_pair_list, std::unique_ptr< const RexScalar > &  else_expr  )

inline

Definition at line 431 of file RelAlgDag.h.

      : expr_pair_list_(std::move(expr_pair_list)), else_expr_(std::move(else_expr)) {}

Member Function Documentation

size_t RexCase::branchCount ( ) const

inline

Definition at line 436 of file RelAlgDag.h.

References expr_pair_list_.

Referenced by anonymous_namespace{RelAlgDag.cpp}::disambiguate_case(), toHash(), RelAlgTranslator::translateCase(), RelRexDagVisitor::visit(), RexVisitor< T >::visitCase(), RexDeepCopyVisitor::visitCase(), anonymous_namespace{RelAlgDag.cpp}::PushDownGenericExpressionInWindowFunction::visitCase(), anonymous_namespace{RelAlgDag.cpp}::WindowFunctionCollector::visitCase(), and anonymous_namespace{RelAlgDag.cpp}::RexWindowFuncReplacementVisitor::visitCase().

{ return expr_pair_list_.size(); }

Here is the caller graph for this function:

const RexScalar* RexCase::getElse ( ) const

inline

Definition at line 448 of file RelAlgDag.h.

References else_expr_.

Referenced by anonymous_namespace{RelAlgDag.cpp}::disambiguate_case(), toHash(), RelAlgTranslator::translateCase(), RelRexDagVisitor::visit(), RexVisitor< T >::visitCase(), RexDeepCopyVisitor::visitCase(), anonymous_namespace{RelAlgDag.cpp}::PushDownGenericExpressionInWindowFunction::visitCase(), anonymous_namespace{RelAlgDag.cpp}::WindowFunctionCollector::visitCase(), and anonymous_namespace{RelAlgDag.cpp}::RexWindowFuncReplacementVisitor::visitCase().

{ return else_expr_.get(); }

Here is the caller graph for this function:

const RexScalar* RexCase::getThen ( const size_t  idx ) const

inline

Definition at line 443 of file RelAlgDag.h.

References CHECK, and expr_pair_list_.

Referenced by anonymous_namespace{RelAlgDag.cpp}::disambiguate_case(), toHash(), RelAlgTranslator::translateCase(), RelRexDagVisitor::visit(), RexVisitor< T >::visitCase(), RexDeepCopyVisitor::visitCase(), anonymous_namespace{RelAlgDag.cpp}::PushDownGenericExpressionInWindowFunction::visitCase(), anonymous_namespace{RelAlgDag.cpp}::WindowFunctionCollector::visitCase(), and anonymous_namespace{RelAlgDag.cpp}::RexWindowFuncReplacementVisitor::visitCase().

                                                   {
    CHECK(idx < expr_pair_list_.size());
    return expr_pair_list_[idx].second.get();
  }

Here is the caller graph for this function:

const RexScalar* RexCase::getWhen ( const size_t  idx ) const

inline

Definition at line 438 of file RelAlgDag.h.

References CHECK, and expr_pair_list_.

Referenced by anonymous_namespace{RelAlgDag.cpp}::disambiguate_case(), toHash(), RelAlgTranslator::translateCase(), RelRexDagVisitor::visit(), RexVisitor< T >::visitCase(), RexDeepCopyVisitor::visitCase(), anonymous_namespace{RelAlgDag.cpp}::PushDownGenericExpressionInWindowFunction::visitCase(), anonymous_namespace{RelAlgDag.cpp}::WindowFunctionCollector::visitCase(), and anonymous_namespace{RelAlgDag.cpp}::RexWindowFuncReplacementVisitor::visitCase().

                                                   {
    CHECK(idx < expr_pair_list_.size());
    return expr_pair_list_[idx].first.get();
  }

Here is the caller graph for this function:

size_t RexCase::toHash ( ) const

inlineoverridevirtual

Implements Rex.

Definition at line 460 of file RelAlgDag.h.

References branchCount(), getElse(), getThen(), getWhen(), Rex::hash_, HASH_N, and RexCase().

Referenced by anonymous_namespace{RelAlgDag.cpp}::RexWindowFuncReplacementVisitor::visitCase().

                                 {
    if (!hash_) {
      hash_ = typeid(RexCase).hash_code();
      for (size_t i = 0; i < branchCount(); ++i) {
        boost::hash_combine(*hash_, getWhen(i)->toHash());
        boost::hash_combine(*hash_, getThen(i)->toHash());
      }
      boost::hash_combine(*hash_, getElse() ? getElse()->toHash() : HASH_N);
    }
    return *hash_;
  }

Here is the call graph for this function:

Here is the caller graph for this function:

std::string RexCase::toString ( RelRexToStringConfig  config = RelRexToStringConfig::defaults() ) const

inlineoverridevirtual

Implements Rex.

Definition at line 450 of file RelAlgDag.h.

References cat(), else_expr_, expr_pair_list_, and typeName().

                                                                                   {
    auto ret = cat(::typeName(this), "(expr_pair_list=");
    for (auto& expr : expr_pair_list_) {
      ret += expr.first->toString(config) + " " + expr.second->toString(config) + " ";
    }
    return cat(
        ret, ", else_expr=", (else_expr_ ? else_expr_->toString(config) : "null"), ")");
  }

Here is the call graph for this function:

Friends And Related Function Documentation

friend struct RelAlgDagSerializer

friend

Definition at line 478 of file RelAlgDag.h.

Member Data Documentation

std::unique_ptr<const RexScalar> RexCase::else_expr_

private

Definition at line 476 of file RelAlgDag.h.

Referenced by getElse(), and toString().

std::vector< std::pair<std::unique_ptr<const RexScalar>, std::unique_ptr<const RexScalar> > > RexCase::expr_pair_list_

private

Definition at line 475 of file RelAlgDag.h.

Referenced by branchCount(), getThen(), getWhen(), and toString().

---

The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/RelAlgDag.h