iceberg::ReferenceVisitor Class Reference

Visitor to collect referenced field IDs from an expression. More...

#include <binder.h>

Inheritance diagram for iceberg::ReferenceVisitor:

Public Member Functions
Result< FieldIdsSetRef >	AlwaysTrue () override
	Visit a True expression (always evaluates to true).
Result< FieldIdsSetRef >	AlwaysFalse () override
	Visit a False expression (always evaluates to false).
Result< FieldIdsSetRef >	Not (const FieldIdsSetRef &child_result) override
Result< FieldIdsSetRef >	And (const FieldIdsSetRef &left_result, const FieldIdsSetRef &right_result) override
Result< FieldIdsSetRef >	Or (const FieldIdsSetRef &left_result, const FieldIdsSetRef &right_result) override
Result< FieldIdsSetRef >	Predicate (const std::shared_ptr< BoundPredicate > &pred) override
	Visit a bound predicate.
Result< FieldIdsSetRef >	Predicate (const std::shared_ptr< UnboundPredicate > &pred) override
	Visit an unbound predicate.
Result< FieldIdsSetRef >	Aggregate (const std::shared_ptr< BoundAggregate > &aggregate) override
	Visit a bound aggregate.
Result< FieldIdsSetRef >	Aggregate (const std::shared_ptr< UnboundAggregate > &aggregate) override
	Visit an unbound aggregate.
Public Member Functions inherited from iceberg::ExpressionVisitor< FieldIdsSetRef >
virtual Result< FieldIdsSetRef >	Not (ParamType child_result)=0
	Visit a Not expression.
virtual Result< FieldIdsSetRef >	And (ParamType left_result, ParamType right_result)=0
	Visit an And expression.
virtual Result< FieldIdsSetRef >	Or (ParamType left_result, ParamType right_result)=0
	Visit an Or expression.

Static Public Member Functions
static Result< std::unordered_set< int32_t > >	GetReferencedFieldIds (const std::shared_ptr< Expression > &expr)

Detailed Description

Visitor to collect referenced field IDs from an expression.

Member Function Documentation

Aggregate() [1/2]

Result< FieldIdsSetRef > iceberg::ReferenceVisitor::Aggregate ( const std::shared_ptr< BoundAggregate > &  aggregate )

overridevirtual

Visit a bound aggregate.

Parameters

aggregate

The bound aggregate to visit.

Reimplemented from iceberg::ExpressionVisitor< FieldIdsSetRef >.

Aggregate() [2/2]

Result< FieldIdsSetRef > iceberg::ReferenceVisitor::Aggregate ( const std::shared_ptr< UnboundAggregate > &  aggregate )

overridevirtual

Visit an unbound aggregate.

Parameters

aggregate

The unbound aggregate to visit.

Reimplemented from iceberg::ExpressionVisitor< FieldIdsSetRef >.

AlwaysFalse()

Result< FieldIdsSetRef > iceberg::ReferenceVisitor::AlwaysFalse ( )

overridevirtual

Visit a False expression (always evaluates to false).

Implements iceberg::ExpressionVisitor< FieldIdsSetRef >.

AlwaysTrue()

Result< FieldIdsSetRef > iceberg::ReferenceVisitor::AlwaysTrue ( )

overridevirtual

Visit a True expression (always evaluates to true).

Implements iceberg::ExpressionVisitor< FieldIdsSetRef >.

Predicate() [1/2]

Result< FieldIdsSetRef > iceberg::ReferenceVisitor::Predicate ( const std::shared_ptr< BoundPredicate > &  pred )

overridevirtual

Visit a bound predicate.

Parameters

pred	The bound predicate to visit

Implements iceberg::ExpressionVisitor< FieldIdsSetRef >.

Predicate() [2/2]

Result< FieldIdsSetRef > iceberg::ReferenceVisitor::Predicate ( const std::shared_ptr< UnboundPredicate > &  pred )

overridevirtual

Visit an unbound predicate.

Parameters

pred	The unbound predicate to visit

Implements iceberg::ExpressionVisitor< FieldIdsSetRef >.

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

• iceberg/expression/binder.h
• iceberg/expression/binder.cc