P4::P4Tools::TraceEvents::Packet Class Reference

A packet that is either presented to a parser or emitted from a deparser. More...

#include <trace_event_types.h>

Inheritance diagram for P4::P4Tools::TraceEvents::Packet:

Public Types
enum class	Direction { In , Out }

Public Member Functions
	Packet (const Direction &direction, const IR::Expression *packetValue)
	Packet (const Packet &)=default
	Packet (Packet &&)=default
const Packet *	apply (Transform &visitor) const override
	Applies the given IR transform to the expressions in this trace event.
const Packet *	evaluate (const Model &model, bool doComplete) const override
Packet &	operator= (const Packet &)=default
Packet &	operator= (Packet &&)=default
const Packet *	subst (const SymbolicEnv &env) const override
Public Member Functions inherited from P4::P4Tools::TraceEvent
Public Member Functions inherited from P4::ICastable
template<typename T >
T &	as ()
	Tries to convert the class to type T. A BUG occurs if the cast fails.
template<typename T >
const T &	as () const
	Tries to convert the class to type T. A BUG occurs if the cast fails.
template<typename T >
T *	checkedTo ()
	Performs a checked cast. A BUG occurs if the cast fails.
template<typename T >
const T *	checkedTo () const
	Performs a checked cast. A BUG occurs if the cast fails.
Public Member Functions inherited from P4::RTTI::Base
template<typename T >
bool	is () const noexcept
virtual bool	isA (TypeId typeId) const noexcept=0
template<typename T >
const T *	to () const noexcept
	Same as to, but returns const pointer to T.
template<typename T >
T *	to () noexcept
virtual TypeId	typeId () const noexcept=0

Protected Member Functions
	DECLARE_TYPEINFO (Packet, TraceEvent)
void	print (std::ostream &os) const override
	Prints this trace event to the given ostream.
Protected Member Functions inherited from P4::P4Tools::TraceEvent
	DECLARE_TYPEINFO (TraceEvent)
Protected Member Functions inherited from P4::RTTI::Base
virtual const void *	toImpl (TypeId typeId) const noexcept=0

Detailed Description

A packet that is either presented to a parser or emitted from a deparser.

Member Enumeration Documentation

Direction

enum class P4::P4Tools::TraceEvents::Packet::Direction

strong

Enumerator
In	Marks a packet that is presented to a parser.
Out	Marks a packet that is emitted from a deparser.

Member Function Documentation

apply()

const Packet * P4::P4Tools::TraceEvents::Packet::apply ( Transform & visitor ) const

overridevirtual

Applies the given IR transform to the expressions in this trace event.

Reimplemented from P4::P4Tools::TraceEvent.

evaluate()

const Packet * P4::P4Tools::TraceEvents::Packet::evaluate ( const Model & model, bool doComplete ) const

nodiscardoverridevirtual

Evaluates expressions in the body of this trace event for their concrete value in the given model. A BUG occurs if there are any variables that are unbound by the given model.

Reimplemented from P4::P4Tools::TraceEvent.

print()

void P4::P4Tools::TraceEvents::Packet::print ( std::ostream & ) const

overrideprotectedvirtual

Prints this trace event to the given ostream.

Implements P4::P4Tools::TraceEvent.

subst()

const Packet * P4::P4Tools::TraceEvents::Packet::subst ( const SymbolicEnv & env ) const

nodiscardoverridevirtual

Substitutes state variables in the body of this trace event for their symbolic value in the given symbolic environment. Variables that are unbound by the given environment are left untouched.

Reimplemented from P4::P4Tools::TraceEvent.