clang::dataflow::DataflowModel Class Reference

Abstract base class for dataflow "models": reusable analysis components that model a particular aspect of program semantics in the Environment. More...

#include "clang/Analysis/FlowSensitive/DataflowAnalysis.h"

Inheritance diagram for clang::dataflow::DataflowModel:

Public Member Functions
virtual bool	transfer (const CFGElement &Element, Environment &Env)=0
	Return value indicates whether the model processed the Element.
Public Member Functions inherited from clang::dataflow::Environment::ValueModel
virtual	~ValueModel ()=default
virtual ComparisonResult	compare (QualType Type, const Value &Val1, const Environment &Env1, const Value &Val2, const Environment &Env2)
	Returns: Same: Val1 is equivalent to Val2, according to the model.
virtual void	join (QualType Type, const Value &Val1, const Environment &Env1, const Value &Val2, const Environment &Env2, Value &JoinedVal, Environment &JoinedEnv)
	Modifies JoinedVal to approximate both Val1 and Val2.
virtual std::optional< WidenResult >	widen (QualType Type, Value &Prev, const Environment &PrevEnv, Value &Current, Environment &CurrentEnv)
	This function may widen the current value – replace it with an approximation that can reach a fixed point more quickly than iterated application of the transfer function alone.

Detailed Description

Abstract base class for dataflow "models": reusable analysis components that model a particular aspect of program semantics in the Environment.

For example, a model may capture a type and its related functions.

Definition at line 395 of file DataflowAnalysis.h.

Member Function Documentation

transfer()

virtual bool clang::dataflow::DataflowModel::transfer ( const CFGElement & Element, Environment & Env )

pure virtual

Return value indicates whether the model processed the Element.

Implemented in clang::dataflow::ChromiumCheckModel.

---

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

• include/clang/Analysis/FlowSensitive/DataflowAnalysis.h