133 lines
4.9 KiB
C++
133 lines
4.9 KiB
C++
/*
|
|
* Cppcheck - A tool for static C/C++ code analysis
|
|
* Copyright (C) 2007-2023 Cppcheck team.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
//---------------------------------------------------------------------------
|
|
#ifndef valueflowH
|
|
#define valueflowH
|
|
//---------------------------------------------------------------------------
|
|
|
|
#include "config.h"
|
|
#include "mathlib.h"
|
|
#include "vfvalue.h"
|
|
|
|
#include <cstdlib>
|
|
#include <functional>
|
|
#include <list>
|
|
#include <string>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
class ErrorLogger;
|
|
struct InferModel;
|
|
class Settings;
|
|
class SymbolDatabase;
|
|
class Token;
|
|
class TokenList;
|
|
class ValueType;
|
|
class Variable;
|
|
class Scope;
|
|
|
|
template<class T>
|
|
class ValuePtr;
|
|
|
|
namespace ValueFlow {
|
|
/// Constant folding of expression. This can be used before the full ValueFlow has been executed (ValueFlow::setValues).
|
|
const Value * valueFlowConstantFoldAST(Token *expr, const Settings *settings);
|
|
|
|
/// Perform valueflow analysis.
|
|
void setValues(TokenList *tokenlist, SymbolDatabase* symboldatabase, ErrorLogger *errorLogger, const Settings *settings);
|
|
|
|
std::string eitherTheConditionIsRedundant(const Token *condition);
|
|
|
|
size_t getSizeOf(const ValueType &vt, const Settings *settings);
|
|
|
|
const Value* findValue(const std::list<Value>& values,
|
|
const Settings* settings,
|
|
const std::function<bool(const Value&)> &pred);
|
|
|
|
std::vector<Value> isOutOfBounds(const Value& size, const Token* indexTok, bool possible = true);
|
|
|
|
Value asImpossible(Value v);
|
|
|
|
bool isContainerSizeChanged(const Token* tok, int indirect, const Settings* settings = nullptr, int depth = 20);
|
|
|
|
struct LifetimeToken {
|
|
const Token* token;
|
|
Value::ErrorPath errorPath;
|
|
bool addressOf;
|
|
bool inconclusive;
|
|
|
|
LifetimeToken() : token(nullptr), errorPath(), addressOf(false), inconclusive(false) {}
|
|
|
|
LifetimeToken(const Token* token, Value::ErrorPath errorPath)
|
|
: token(token), errorPath(std::move(errorPath)), addressOf(false), inconclusive(false)
|
|
{}
|
|
|
|
LifetimeToken(const Token* token, bool addressOf, Value::ErrorPath errorPath)
|
|
: token(token), errorPath(std::move(errorPath)), addressOf(addressOf), inconclusive(false)
|
|
{}
|
|
|
|
static std::vector<LifetimeToken> setAddressOf(std::vector<LifetimeToken> v, bool b) {
|
|
for (LifetimeToken& x : v)
|
|
x.addressOf = b;
|
|
return v;
|
|
}
|
|
|
|
static std::vector<LifetimeToken> setInconclusive(std::vector<LifetimeToken> v, bool b) {
|
|
for (LifetimeToken& x : v)
|
|
x.inconclusive = b;
|
|
return v;
|
|
}
|
|
};
|
|
|
|
const Token *parseCompareInt(const Token *tok, Value &true_value, Value &false_value, const std::function<std::vector<MathLib::bigint>(const Token*)>& evaluate);
|
|
const Token *parseCompareInt(const Token *tok, Value &true_value, Value &false_value);
|
|
|
|
CPPCHECKLIB ValuePtr<InferModel> makeIntegralInferModel();
|
|
|
|
const Token* solveExprValue(const Token* expr,
|
|
const std::function<std::vector<MathLib::bigint>(const Token*)>& eval,
|
|
Value& value);
|
|
|
|
std::vector<LifetimeToken> getLifetimeTokens(const Token* tok,
|
|
bool escape = false,
|
|
Value::ErrorPath errorPath = Value::ErrorPath{});
|
|
|
|
bool hasLifetimeToken(const Token* tok, const Token* lifetime);
|
|
|
|
const Variable* getLifetimeVariable(const Token* tok, Value::ErrorPath& errorPath, bool* addressOf = nullptr);
|
|
|
|
const Variable* getLifetimeVariable(const Token* tok);
|
|
|
|
bool isLifetimeBorrowed(const Token *tok, const Settings *settings);
|
|
|
|
std::string lifetimeMessage(const Token *tok, const Value *val, Value::ErrorPath &errorPath);
|
|
|
|
CPPCHECKLIB Value getLifetimeObjValue(const Token *tok, bool inconclusive = false);
|
|
|
|
CPPCHECKLIB std::vector<Value> getLifetimeObjValues(const Token* tok,
|
|
bool inconclusive = false,
|
|
MathLib::bigint path = 0);
|
|
|
|
const Token* getEndOfExprScope(const Token* tok, const Scope* defaultScope = nullptr, bool smallest = true);
|
|
|
|
void combineValueProperties(const Value& value1, const Value& value2, Value* result);
|
|
}
|
|
|
|
#endif // valueflowH
|