P4C
The P4 Compiler
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Public Member Functions | Protected Member Functions | List of all members
P4::Evaluator Class Referencefinal
Inheritance diagram for P4::Evaluator:
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Public Member Functions

 Evaluator (const ReferenceMap *refMap, const TypeMap *typeMap)
 
IR::Block * currentBlock () const
 
std::vector< const IR::CompileTimeValue * > * evaluateArguments (const IR::ParameterList *parameters, const IR::Vector< IR::Argument > *arguments, IR::Block *context)
 
IR::ToplevelBlock * getToplevelBlock () const override
 
const IR::CompileTimeValue * getValue (const IR::Node *node) const
 
bool hasValue (const IR::Node *node) const
 
profile_t init_apply (const IR::Node *node) override
 
bool preorder (const IR::BoolLiteral *expression) override
 
bool preorder (const IR::Constant *expression) override
 
bool preorder (const IR::ConstructorCallExpression *inst) override
 
bool preorder (const IR::Declaration_Constant *decl) override
 
bool preorder (const IR::Declaration_ID *expression) override
 
bool preorder (const IR::Declaration_Instance *inst) override
 
bool preorder (const IR::ListCompileTimeValue *expression) override
 
bool preorder (const IR::ListExpression *expression) override
 
bool preorder (const IR::Member *expression) override
 
bool preorder (const IR::MethodCallExpression *expr) override
 
bool preorder (const IR::P4ListExpression *expression) override
 
bool preorder (const IR::P4Program *program) override
 
bool preorder (const IR::P4Table *table) override
 
bool preorder (const IR::PathExpression *expression) override
 
bool preorder (const IR::Property *prop) override
 
bool preorder (const IR::StringLiteral *expression) override
 
bool preorder (const IR::StructCompileTimeValue *expression) override
 
bool preorder (const IR::StructExpression *expression) override
 
const IR::Block * processConstructor (const IR::Node *node, const IR::Type *type, const IR::Type *instanceType, const IR::Vector< IR::Argument > *arguments)
 
void setValue (const IR::Node *node, const IR::CompileTimeValue *constant)
 
- 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
 
- Public Member Functions inherited from P4::IHasBlock

Protected Member Functions

void popBlock (IR::Block *block)
 
void pushBlock (IR::Block *block)
 
- 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)
 

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)
 
- Public Attributes inherited from P4::Visitor
const Visitor * called_by = nullptr
 
cstring internalName
 
SplitFlowVisit_base *& split_link
 
SplitFlowVisit_base * split_link_mem = nullptr
 
- Protected Attributes inherited from P4::Visitor
bool dontForwardChildrenBeforePreorder = false
 
bool joinFlows = false
 
bool visitDagOnce = true
 

Member Function Documentation

◆ evaluateArguments()

std::vector< const IR::CompileTimeValue * > * P4::Evaluator::evaluateArguments ( const IR::ParameterList * parameters,
const IR::Vector< IR::Argument > * arguments,
IR::Block * context )

Evaluates the arguments and returns a vector of parameter values ordered in the parameter order.

◆ getToplevelBlock()

IR::ToplevelBlock * P4::Evaluator::getToplevelBlock ( ) const
inlineoverridevirtual

Implements P4::IHasBlock.

◆ hasValue()

bool P4::Evaluator::hasValue ( const IR::Node * node) const

True if the node is mapped to a value, even if the value is nullptr.

◆ init_apply()

Visitor::profile_t P4::Evaluator::init_apply ( const IR::Node * node)
overridevirtual

Reimplemented from P4::Visitor.

◆ setValue()

void P4::Evaluator::setValue ( const IR::Node * node,
const IR::CompileTimeValue * constant )

Map a node to value. The value can be nullptr, e.g., for an optional parameter.