Inheritance diagram for BFN::ResolveHeaderStackIndex:

[legend]

Public Member Functions
	ResolveHeaderStackIndex (IR::BFN::ParserState s, AncestorStates ans)

	ResolveHeaderStackIndex (IR::BFN::ParserState s, const std::map< cstring, IR::BFN::ParserState > &bs, const ordered_map< cstring, const IR::ParserState * > ans, P4ParserGraphs pg)

bool	addPrecedingExtractIdx (const IR::ParserState state, std::map< int, std::set< const IR::ParserState > > &indexToState, cstring header)

int	getCurrentIndex (cstring header)

int	getCurrentIndexFromTopoAncestors (cstring header)

bool	isStackOutOfBound (const IR::HeaderStackItemRef *ref, int index)

IR::Node *	postorder (IR::MethodCallStatement *statement) override

IR::Node *	preorder (IR::BFN::UnresolvedHeaderStackIndex *unresolved) override

Public Member Functions inherited from P4::Transform
const IR::Node *	apply_visitor (const IR::Node , const char name=0) override

profile_t	init_apply (const IR::Node *root) override

virtual void	loop_revisit (const IR::Node *)

virtual const IR::Node *	postorder (IR::Node *n)

virtual const IR::Node *	preorder (IR::Node *n)

void	prune ()

virtual void	revisit (const IR::Node , const IR::Node )

void	revisit_visited ()

bool	visit_in_progress (const IR::Node *) const

void	visitAgain () const override

void	visitOnce () const override

Public Member Functions inherited from P4::Visitor
virtual bool	check_global (cstring)

virtual void	clear_globals ()

virtual Visitor *	clone () const

virtual ControlFlowVisitor *	controlFlowVisitor ()

virtual void	end_apply ()

virtual void	end_apply (const IR::Node *root)

virtual void	erase_global (cstring)

template<class T >
const T *	findContext () const

template<class T >
const T *	findContext (const Context *&c) const

template<class T >
const T *	findOrigCtxt () const

template<class T >
const T *	findOrigCtxt (const Context *&c) const

virtual Visitor &	flow_clone ()

virtual void	flow_merge (Visitor &)

virtual bool	flow_merge_closure (Visitor &)

virtual void	flow_merge_global_from (cstring)

virtual void	flow_merge_global_to (cstring)

const Context *	getChildContext () const

int	getChildrenVisited () const

const Context *	getContext () const

int	getContextDepth () const

const IR::Node *	getCurrentNode () const

template<class T >
const T *	getCurrentNode () const

const IR::Node *	getOriginal () const

template<class T >
const T *	getOriginal () const

template<class T >
const T *	getParent () const

virtual bool	has_flow_joins () const

profile_t	init_apply (const IR::Node root, const Context parent_context)

bool	isInContext (const IR::Node *n) const

virtual const char *	name () const

template<class T >
void	parallel_visit (const IR::Vector< T > &v, const char *name, int cidx)

template<class T >
void	parallel_visit (const IR::Vector< T > &v, const char *name=0)

template<class T >
void	parallel_visit (IR::Vector< T > &v, const char *name, int cidx)

template<class T >
void	parallel_visit (IR::Vector< T > &v, const char *name=0)

void	print_context () const

const Visitor &	setCalledBy (const Visitor *visitor)

void	setName (const char *name)

void	visit (const IR::Node &n, const char *name, int cidx)

void	visit (const IR::Node &n, const char *name=0)

void	visit (const IR::Node &n, const char name, int cidx)

void	visit (const IR::Node &n, const char name=0)

void	visit (const IR::Node const &n, const char name, int cidx)

void	visit (const IR::Node const &n, const char name=0)

void	visit (IR::Node &n, const char *name, int cidx)

void	visit (IR::Node &n, const char *name=0)

void	visit (IR::Node &, const char =0, int=0)

template<class T , typename = std::enable_if_t<Util::has_SourceInfo_v<T> && !std::is_pointer_v<T>>, class... Args>
void	warn (const int kind, const char *format, const T &node, Args &&...args)
	The const ref variant of the above.

template<class T , typename = std::enable_if_t<Util::has_SourceInfo_v<T>>, class... Args>
void	warn (const int kind, const char format, const T node, Args &&...args)

bool	warning_enabled (int warning_kind) const

Public Attributes
AncestorStates *	ancestors = nullptr

const std::map< cstring, IR::BFN::ParserState * >	backendStates

std::map< cstring, int >	headerToCurrentIndex

P4ParserGraphs *	pg = nullptr

std::set< cstring >	resolvedHeaders

bool	stackOutOfBound = false

IR::BFN::ParserState *	state

std::set< cstring >	stridedStates

const ordered_map< cstring, const IR::ParserState * > *	topoAncestors = nullptr

Public Attributes inherited from P4::Visitor
const Visitor *	called_by = nullptr

cstring	internalName

SplitFlowVisit_base *&	split_link

SplitFlowVisit_base *	split_link_mem = nullptr

Additional Inherited Members
Public Types inherited from P4::Visitor
typedef Visitor_Context	Context

Static Public Member Functions inherited from P4::Visitor
static cstring	demangle (const char *)

static bool	warning_enabled (const Visitor *visitor, int warning_kind)

Protected Member Functions inherited from P4::Transform
const IR::Node *	transform_child (const IR::Node *child)

Protected Member Functions inherited from P4::Visitor
virtual void	init_join_flows (const IR::Node *)

virtual bool	join_flows (const IR::Node *)

virtual void	post_join_flows (const IR::Node , const IR::Node )

void	visit_children (const IR::Node *, std::function< void()> fn)

Protected Attributes inherited from P4::Transform
bool	forceClone = false

Protected Attributes inherited from P4::Visitor
bool	dontForwardChildrenBeforePreorder = false

bool	joinFlows = false

bool	visitDagOnce = true

Detailed Description

Resolves the "next" and "last" stack references according to the spec. Call this on the frontend IR::ParserState node; will resolve all IR::BFN::UnresolvedHeaderStackIndex into concrete indices.

Member Function Documentation

◆ getCurrentIndex()

int BFN::ResolveHeaderStackIndex::getCurrentIndex ( cstring header )

inline

Returns the current stack index of the header. Looks into the visited ancestor states and see what's the current index. If not found in ancestor states, we are visiting this header for the first time.

Member Data Documentation

◆ headerToCurrentIndex

std::map<cstring, int> BFN::ResolveHeaderStackIndex::headerToCurrentIndex

Local map of header to stack index. The stack index can be advanced multiple times in the current state.

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ getCurrentIndex()

Member Data Documentation

◆ headerToCurrentIndex