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Parser::IsNullExpr Class Reference

#include <ParserNode.h>

+ Inheritance diagram for Parser::IsNullExpr:
+ Collaboration diagram for Parser::IsNullExpr:

Public Member Functions

 IsNullExpr (bool n, Expr *a)
 
bool get_is_not () const
 
std::shared_ptr< Analyzer::Expranalyze (const Catalog_Namespace::Catalog &catalog, Analyzer::Query &query, TlistRefType allow_tlist_ref=TLIST_NONE) const override
 
std::string to_string () const override
 
- Public Member Functions inherited from Parser::Node
virtual ~Node ()
 

Private Attributes

bool is_not
 
std::unique_ptr< Exprarg
 

Additional Inherited Members

- Public Types inherited from Parser::Expr
enum  TlistRefType { TLIST_NONE, TLIST_REF, TLIST_COPY }
 

Detailed Description

Definition at line 344 of file ParserNode.h.

Constructor & Destructor Documentation

Parser::IsNullExpr::IsNullExpr ( bool  n,
Expr a 
)
inline

Definition at line 346 of file ParserNode.h.

346 : is_not(n), arg(a) {}
std::unique_ptr< Expr > arg
Definition: ParserNode.h:356

Member Function Documentation

std::shared_ptr< Analyzer::Expr > Parser::IsNullExpr::analyze ( const Catalog_Namespace::Catalog catalog,
Analyzer::Query query,
TlistRefType  allow_tlist_ref = TLIST_NONE 
) const
overridevirtual

Implements Parser::Expr.

Definition at line 373 of file ParserNode.cpp.

References kBOOLEAN, kISNULL, kNOT, and run_benchmark_import::result.

376  {
377  auto arg_expr = arg->analyze(catalog, query, allow_tlist_ref);
378  auto result = makeExpr<Analyzer::UOper>(kBOOLEAN, kISNULL, arg_expr);
379  if (is_not) {
380  result = makeExpr<Analyzer::UOper>(kBOOLEAN, kNOT, result);
381  }
382  return result;
383 }
std::unique_ptr< Expr > arg
Definition: ParserNode.h:356
Definition: sqldefs.h:39
bool Parser::IsNullExpr::get_is_not ( ) const
inline

Definition at line 347 of file ParserNode.h.

References is_not.

347 { return is_not; }
std::string Parser::IsNullExpr::to_string ( ) const
overridevirtual

Implements Parser::Expr.

Definition at line 1362 of file ParserNode.cpp.

1362  {
1363  std::string str = arg->to_string();
1364  if (is_not) {
1365  str += " IS NOT NULL";
1366  } else {
1367  str += " IS NULL";
1368  }
1369  return str;
1370 }
std::unique_ptr< Expr > arg
Definition: ParserNode.h:356

Member Data Documentation

std::unique_ptr<Expr> Parser::IsNullExpr::arg
private

Definition at line 356 of file ParserNode.h.

bool Parser::IsNullExpr::is_not
private

Definition at line 355 of file ParserNode.h.

Referenced by get_is_not().


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