DynamicType.h

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/===- DynamicType.h - Dynamic type related APIs ----------------*- C++ -*-===/
/
/ Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
/ See https://llvm.org/LICENSE.txt for license information.
/ SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
/
/===----------------------------------------------------------------------===/
/
/  This file defines APIs that track and query dynamic type information. This
/  information can be used to devirtualize calls during the symbolic execution
/  or do type checking.
/
/===----------------------------------------------------------------------===/
 
#ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICTYPE_H
#define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICTYPE_H
 
#include "clang/AST/Type.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/DynamicCastInfo.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/DynamicTypeInfo.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramStateTrait.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState_Fwd.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/SymbolManager.h"
 
namespace clang {
namespace ento {
 
/ Get dynamic type information for the region \p MR.
DynamicTypeInfo getDynamicTypeInfo(ProgramStateRef State, const MemRegion *MR);
 
/ Get raw dynamic type information for the region \p MR.
/ It might return null.
const DynamicTypeInfo *getRawDynamicTypeInfo(ProgramStateRef State,
                                             const MemRegion *MR);
 
/ Get dynamic type information stored in a class object represented by \p Sym.
DynamicTypeInfo getClassObjectDynamicTypeInfo(ProgramStateRef State,
                                              SymbolRef Sym);
 
/ Get dynamic cast information from \p CastFromTy to \p CastToTy of \p MR.
const DynamicCastInfo *getDynamicCastInfo(ProgramStateRef State,
                                          const MemRegion *MR,
                                          QualType CastFromTy,
                                          QualType CastToTy);
 
/ Set dynamic type information of the region; return the new state.
ProgramStateRef setDynamicTypeInfo(ProgramStateRef State, const MemRegion *MR,
                                   DynamicTypeInfo NewTy);
 
/ Set dynamic type information of the region; return the new state.
ProgramStateRef setDynamicTypeInfo(ProgramStateRef State, const MemRegion *MR,
                                   QualType NewTy, bool CanBeSubClassed = true);
 
/ Set constraint on a type contained in a class object; return the new state.
ProgramStateRef setClassObjectDynamicTypeInfo(ProgramStateRef State,
                                              SymbolRef Sym,
                                              DynamicTypeInfo NewTy);
 
/ Set constraint on a type contained in a class object; return the new state.
ProgramStateRef setClassObjectDynamicTypeInfo(ProgramStateRef State,
                                              SymbolRef Sym, QualType NewTy,
                                              bool CanBeSubClassed = true);
 
/ Set dynamic type and cast information of the region; return the new state.
ProgramStateRef setDynamicTypeAndCastInfo(ProgramStateRef State,
                                          const MemRegion *MR,
                                          QualType CastFromTy,
                                          QualType CastToTy,
                                          bool IsCastSucceeds);
 
/ Removes the dead type informations from \p State.
ProgramStateRef removeDeadTypes(ProgramStateRef State, SymbolReaper &SR);
 
/ Removes the dead cast informations from \p State.
ProgramStateRef removeDeadCasts(ProgramStateRef State, SymbolReaper &SR);
 
/ Removes the dead Class object type informations from \p State.
ProgramStateRef removeDeadClassObjectTypes(ProgramStateRef State,
                                           SymbolReaper &SR);
 
void printDynamicTypeInfoJson(raw_ostream &Out, ProgramStateRef State,
                              const char *NL = "\n", unsigned int Space = 0,
                              bool IsDot = false);
 
} / namespace ento
} / namespace clang
 
#endif / LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICTYPE_H