Determines whether an expression may have method or constructor invocations. More...

#include <sideEffects.h>

Inheritance diagram for P4::SideEffects:

Public Member Functions
	SideEffects (DeclarationLookup refMap, TypeMap typeMap)

void	postorder (const IR::ConstructorCallExpression *cce) override

void	postorder (const IR::MethodCallExpression *mce) override

Public Member Functions inherited from P4::Inspector
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 void	postorder (const IR::Node *)

virtual bool	preorder (const IR::Node *)

virtual void	revisit (const IR::Node *)

void	revisit_visited ()

bool	visit_in_progress (const IR::Node *n) 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

Static Public Member Functions
static bool	check (const IR::Expression expression, const Visitor calledBy, DeclarationLookup refMap, TypeMap typeMap, const Visitor::Context *ctxt=nullptr)

static bool	hasSideEffect (const IR::MethodCallExpression mce, DeclarationLookup refMap, TypeMap *typeMap)

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

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

Public Attributes
const IR::Node *	nodeWithSideEffect = nullptr
	Last visited side-effecting node. Null if no node has side effects.

unsigned	sideEffectCount = 0
	Number of side effects in this expression.

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

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::Visitor
bool	dontForwardChildrenBeforePreorder = false

bool	joinFlows = false

bool	visitDagOnce = true

Detailed Description

Determines whether an expression may have method or constructor invocations.

The TypeMap and ReferenceMap arguments may be null, in which case every method call expression is counted. With type information, invocations of isValid() are ignored.

Constructor & Destructor Documentation

◆ SideEffects()

P4::SideEffects::SideEffects	(	DeclarationLookup *	refMap,
		TypeMap *	typeMap )

inline

The @refMap and @typeMap arguments can be null, in which case the check will be more conservative.

Member Function Documentation

◆ check()

static bool P4::SideEffects::check	(	const IR::Expression *	expression,
		const Visitor *	calledBy,
		DeclarationLookup *	refMap,
		TypeMap *	typeMap,
		const Visitor::Context *	ctxt = nullptr )

inlinestatic

Returns: true if the expression may have side-effects.

◆ hasSideEffect()

static bool P4::SideEffects::hasSideEffect	(	const IR::MethodCallExpression *	mce,
		DeclarationLookup *	refMap,
		TypeMap *	typeMap )

inlinestatic

Returns: true if the method call expression may have side-effects.

Public Member Functions

Static Public Member Functions