Abstract base class for dataflow "models": reusable analysis components that model a particular aspect of program semantics in the Environment.
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#include "clang/Analysis/FlowSensitive/DataflowAnalysis.h"
Inheritance diagram for clang::dataflow::DataflowModel:
Collaboration 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 bool | merge (QualType Type, const Value &Val1, const Environment &Env1, const Value &Val2, const Environment &Env2, Value &MergedVal, Environment &MergedEnv) |
Modifies MergedVal to approximate both Val1 and Val2. | |
| virtual Value * | 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 238 of file DataflowAnalysis.h.
Member Function Documentation
◆ transfer()
|
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
