6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
65 lines
2.7 KiB
C++
65 lines
2.7 KiB
C++
//===- DynamicExtent.h - Dynamic extent 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 extent information.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICEXTENT_H
|
|
#define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICEXTENT_H
|
|
|
|
#include "clang/StaticAnalyzer/Core/PathSensitive/MemRegion.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/SValBuilder.h"
|
|
|
|
namespace clang {
|
|
namespace ento {
|
|
|
|
/// \returns The stored dynamic extent for the region \p MR.
|
|
DefinedOrUnknownSVal getDynamicExtent(ProgramStateRef State,
|
|
const MemRegion *MR, SValBuilder &SVB);
|
|
|
|
/// \returns The element extent of the type \p Ty.
|
|
DefinedOrUnknownSVal getElementExtent(QualType Ty, SValBuilder &SVB);
|
|
|
|
/// \returns The stored element count of the region \p MR.
|
|
DefinedOrUnknownSVal getDynamicElementCount(ProgramStateRef State,
|
|
const MemRegion *MR,
|
|
SValBuilder &SVB, QualType Ty);
|
|
|
|
/// Set the dynamic extent \p Extent of the region \p MR.
|
|
ProgramStateRef setDynamicExtent(ProgramStateRef State, const MemRegion *MR,
|
|
DefinedOrUnknownSVal Extent, SValBuilder &SVB);
|
|
|
|
/// Get the dynamic extent for a symbolic value that represents a buffer. If
|
|
/// there is an offsetting to the underlying buffer we consider that too.
|
|
/// Returns with an SVal that represents the extent, this is Unknown if the
|
|
/// engine cannot deduce the extent.
|
|
/// E.g.
|
|
/// char buf[3];
|
|
/// (buf); // extent is 3
|
|
/// (buf + 1); // extent is 2
|
|
/// (buf + 3); // extent is 0
|
|
/// (buf + 4); // extent is -1
|
|
///
|
|
/// char *bufptr;
|
|
/// (bufptr) // extent is unknown
|
|
SVal getDynamicExtentWithOffset(ProgramStateRef State, SVal BufV);
|
|
|
|
/// \returns The stored element count of the region represented by a symbolic
|
|
/// value \p BufV.
|
|
DefinedOrUnknownSVal getDynamicElementCountWithOffset(ProgramStateRef State,
|
|
SVal BufV, QualType Ty);
|
|
|
|
} // namespace ento
|
|
} // namespace clang
|
|
|
|
#endif // LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICEXTENT_H
|