1430 lines
44 KiB
C++
1430 lines
44 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2020 Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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//---------------------------------------------------------------------------
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#ifndef symboldatabaseH
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#define symboldatabaseH
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//---------------------------------------------------------------------------
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#include "config.h"
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#include "library.h"
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#include "mathlib.h"
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#include "token.h"
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#include "utils.h"
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#include <cstddef>
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#include <list>
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#include <map>
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#include <set>
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#include <string>
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#include <utility>
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#include <vector>
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namespace cppcheck {
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class Platform;
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}
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class ErrorLogger;
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class Function;
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class Scope;
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class Settings;
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class SymbolDatabase;
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class Tokenizer;
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class ValueType;
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/**
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* @brief Access control enumerations.
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*/
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enum class AccessControl { Public, Protected, Private, Global, Namespace, Argument, Local, Throw };
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/**
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* @brief Array dimension information.
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*/
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struct Dimension {
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Dimension() : tok(nullptr), num(0), known(true) { }
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const Token *tok; ///< size token
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MathLib::bigint num; ///< (assumed) dimension length when size is a number, 0 if not known
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bool known; ///< Known size
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};
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/** @brief Information about a class type. */
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class CPPCHECKLIB Type {
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public:
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const Token* classDef; ///< Points to "class" token
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const Scope* classScope;
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const Scope* enclosingScope;
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enum class NeedInitialization {
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Unknown, True, False
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} needInitialization;
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class BaseInfo {
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public:
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BaseInfo() :
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type(nullptr), nameTok(nullptr), access(AccessControl::Public), isVirtual(false) {
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}
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std::string name;
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const Type* type;
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const Token* nameTok;
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AccessControl access; // public/protected/private
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bool isVirtual;
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// allow ordering within containers
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bool operator<(const BaseInfo& rhs) const {
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return this->type < rhs.type;
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}
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};
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struct FriendInfo {
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FriendInfo() :
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nameStart(nullptr), nameEnd(nullptr), type(nullptr) {
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}
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const Token* nameStart;
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const Token* nameEnd;
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const Type* type;
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};
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std::vector<BaseInfo> derivedFrom;
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std::vector<FriendInfo> friendList;
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const Token * typeStart;
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const Token * typeEnd;
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MathLib::bigint sizeOf;
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Type(const Token* classDef_ = nullptr, const Scope* classScope_ = nullptr, const Scope* enclosingScope_ = nullptr) :
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classDef(classDef_),
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classScope(classScope_),
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enclosingScope(enclosingScope_),
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needInitialization(NeedInitialization::Unknown),
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typeStart(nullptr),
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typeEnd(nullptr),
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sizeOf(0) {
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if (classDef_ && classDef_->str() == "enum")
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needInitialization = NeedInitialization::True;
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else if (classDef_ && classDef_->str() == "using") {
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typeStart = classDef->tokAt(3);
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typeEnd = typeStart;
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while (typeEnd->next() && typeEnd->next()->str() != ";")
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typeEnd = typeEnd->next();
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}
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}
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const std::string& name() const;
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const std::string& type() const {
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return classDef ? classDef->str() : emptyString;
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}
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bool isClassType() const;
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bool isEnumType() const;
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bool isStructType() const;
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bool isUnionType() const;
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bool isTypeAlias() const {
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return classDef && classDef->str() == "using";
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}
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const Token *initBaseInfo(const Token *tok, const Token *tok1);
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const Function* getFunction(const std::string& funcName) const;
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/**
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* Check for circulare dependencies, i.e. loops within the class hierarchy
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* @param ancestors list of ancestors. For internal usage only, clients should not supply this argument.
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* @return true if there is a circular dependency
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*/
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bool hasCircularDependencies(std::set<BaseInfo>* ancestors = nullptr) const;
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/**
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* Check for dependency
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* @param ancestor potential ancestor
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* @return true if there is a dependency
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*/
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bool findDependency(const Type* ancestor) const;
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bool isDerivedFrom(const std::string & ancestor) const;
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};
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class CPPCHECKLIB Enumerator {
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public:
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explicit Enumerator(const Scope * scope_) : scope(scope_), name(nullptr), value(0), start(nullptr), end(nullptr), value_known(false) { }
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const Scope * scope;
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const Token * name;
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MathLib::bigint value;
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const Token * start;
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const Token * end;
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bool value_known;
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};
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/** @brief Information about a member variable. */
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class CPPCHECKLIB Variable {
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/** @brief flags mask used to access specific bit. */
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enum {
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fIsMutable = (1 << 0), /** @brief mutable variable */
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fIsStatic = (1 << 1), /** @brief static variable */
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fIsConst = (1 << 2), /** @brief const variable */
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fIsExtern = (1 << 3), /** @brief extern variable */
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fIsClass = (1 << 4), /** @brief user defined type */
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fIsArray = (1 << 5), /** @brief array variable */
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fIsPointer = (1 << 6), /** @brief pointer variable */
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fIsReference = (1 << 7), /** @brief reference variable */
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fIsRValueRef = (1 << 8), /** @brief rvalue reference variable */
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fHasDefault = (1 << 9), /** @brief function argument with default value */
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fIsStlType = (1 << 10), /** @brief STL type ('std::') */
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fIsStlString = (1 << 11), /** @brief std::string|wstring|basic_string<T>|u16string|u32string */
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fIsFloatType = (1 << 12), /** @brief Floating point type */
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fIsVolatile = (1 << 13), /** @brief volatile */
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fIsSmartPointer = (1 << 14),/** @brief std::shared_ptr|unique_ptr */
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fIsMaybeUnused = (1 << 15), /** @brief marked [[maybe_unused]] */
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fIsInit = (1 << 16), /** @brief Is variable initialized in declaration */
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};
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/**
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* Get specified flag state.
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* @param flag_ flag to get state of
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* @return true if flag set or false in flag not set
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*/
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bool getFlag(unsigned int flag_) const {
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return ((mFlags & flag_) != 0);
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}
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/**
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* Set specified flag state.
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* @param flag_ flag to set state
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* @param state_ new state of flag
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*/
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void setFlag(unsigned int flag_, bool state_) {
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mFlags = state_ ? mFlags | flag_ : mFlags & ~flag_;
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}
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/**
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* @brief parse and save array dimension information
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* @param settings Platform settings and library
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* @return true if array, false if not
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*/
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bool arrayDimensions(const Settings* settings);
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public:
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Variable(const Token *name_, const Token *start_, const Token *end_,
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nonneg int index_, AccessControl access_, const Type *type_,
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const Scope *scope_, const Settings* settings)
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: mNameToken(name_),
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mTypeStartToken(start_),
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mTypeEndToken(end_),
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mIndex(index_),
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mAccess(access_),
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mFlags(0),
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mType(type_),
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mScope(scope_),
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mValueType(nullptr) {
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evaluate(settings);
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}
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Variable(const Token *name_, const std::string &clangType, const Token *typeStart,
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const Token *typeEnd, nonneg int index_, AccessControl access_,
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const Type *type_, const Scope *scope_);
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~Variable();
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/**
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* Get name token.
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* @return name token
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*/
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const Token *nameToken() const {
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return mNameToken;
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}
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/**
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* Get type start token.
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* The type start token doesn't account 'static' and 'const' qualifiers
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* E.g.:
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* static const int * const p = ...;
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* type start token ^
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* @return type start token
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*/
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const Token *typeStartToken() const {
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return mTypeStartToken;
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}
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/**
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* Get type end token.
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* The type end token doesn't account the forward 'const' qualifier
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* E.g.:
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* static const int * const p = ...;
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* type end token ^
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* @return type end token
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*/
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const Token *typeEndToken() const {
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return mTypeEndToken;
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}
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/**
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* Get end token of variable declaration
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* E.g.
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* int i[2][3] = ...
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* end token ^
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* @return variable declaration end token
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*/
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const Token *declEndToken() const;
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/**
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* Get name string.
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* @return name string
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*/
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const std::string &name() const {
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// name may not exist for function arguments
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if (mNameToken)
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return mNameToken->str();
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return emptyString;
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}
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/**
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* Get declaration ID (varId used for variable in its declaration).
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* @return declaration ID
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*/
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nonneg int declarationId() const {
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// name may not exist for function arguments
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if (mNameToken)
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return mNameToken->varId();
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return 0;
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}
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/**
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* Get index of variable in declared order.
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* @return variable index
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*/
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nonneg int index() const {
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return mIndex;
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}
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/**
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* Is variable public.
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* @return true if public, false if not
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*/
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bool isPublic() const {
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return mAccess == AccessControl::Public;
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}
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/**
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* Is variable protected.
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* @return true if protected, false if not
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*/
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bool isProtected() const {
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return mAccess == AccessControl::Protected;
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}
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/**
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* Is variable private.
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* @return true if private, false if not
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*/
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bool isPrivate() const {
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return mAccess == AccessControl::Private;
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}
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/**
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* Is variable global.
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* @return true if global, false if not
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*/
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bool isGlobal() const {
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return mAccess == AccessControl::Global;
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}
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/**
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* Is variable in a namespace.
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* @return true if in a namespace, false if not
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*/
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bool isNamespace() const {
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return mAccess == AccessControl::Namespace;
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}
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/**
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* Is variable a function argument.
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* @return true if a function argument, false if not
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*/
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bool isArgument() const {
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return mAccess == AccessControl::Argument;
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}
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/**
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* Is variable local.
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* @return true if local, false if not
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*/
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bool isLocal() const {
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return (mAccess == AccessControl::Local) && !isExtern();
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}
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/**
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* Is variable mutable.
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* @return true if mutable, false if not
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*/
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bool isMutable() const {
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return getFlag(fIsMutable);
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}
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/**
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* Is variable volatile.
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* @return true if volatile, false if not
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*/
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bool isVolatile() const {
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return getFlag(fIsVolatile);
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}
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/**
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* Is variable static.
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* @return true if static, false if not
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*/
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bool isStatic() const {
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return getFlag(fIsStatic);
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}
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/**
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* Is variable extern.
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* @return true if extern, false if not
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*/
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bool isExtern() const {
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return getFlag(fIsExtern);
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}
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/**
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* Is variable const.
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* @return true if const, false if not
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*/
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bool isConst() const {
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return getFlag(fIsConst);
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}
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/**
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* Is variable a throw type.
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* @return true if throw type, false if not
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*/
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bool isThrow() const {
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return mAccess == AccessControl::Throw;
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}
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/**
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* Is variable a user defined (or unknown) type.
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* @return true if user defined type, false if not
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*/
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bool isClass() const {
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return getFlag(fIsClass);
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}
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/**
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* Is variable an array.
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* @return true if array, false if not
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*/
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bool isArray() const {
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return getFlag(fIsArray) && !getFlag(fIsPointer);
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}
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/**
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* Is pointer variable.
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* @return true if pointer, false otherwise
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*/
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bool isPointer() const {
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return getFlag(fIsPointer);
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}
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/**
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* Is variable a pointer to an array
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* @return true if pointer to array, false otherwise
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*/
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bool isPointerToArray() const {
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return isPointer() && getFlag(fIsArray);
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}
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/**
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* Is variable an array of pointers
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* @return true if array or pointers, false otherwise
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*/
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bool isPointerArray() const;
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/**
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* Is array or pointer variable.
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* @return true if pointer or array, false otherwise
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*/
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bool isArrayOrPointer() const {
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return getFlag(fIsArray) || getFlag(fIsPointer);
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}
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/**
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* Is reference variable.
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* @return true if reference, false otherwise
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*/
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bool isReference() const {
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return getFlag(fIsReference);
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}
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/**
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* Is reference variable.
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* @return true if reference, false otherwise
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*/
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bool isRValueReference() const {
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return getFlag(fIsRValueRef);
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}
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/**
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* Is variable unsigned.
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* @return true only if variable _is_ unsigned. if the sign is unknown, false is returned.
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*/
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bool isUnsigned() const;
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/**
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* Does variable have a default value.
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* @return true if has a default falue, false if not
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*/
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bool hasDefault() const {
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return getFlag(fHasDefault);
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}
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/**
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* Is variable initialized in its declaration
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* @return true if variable declaration contains initialization
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*/
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bool isInit() const {
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return getFlag(fIsInit);
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}
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/**
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* Get Type pointer of known type.
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* @return pointer to type if known, NULL if not known
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*/
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const Type *type() const {
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return mType;
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}
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/**
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* Get Scope pointer of known type.
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* @return pointer to type scope if known, NULL if not known
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*/
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const Scope *typeScope() const {
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return mType ? mType->classScope : nullptr;
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}
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/**
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* Get Scope pointer of enclosing scope.
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* @return pointer to enclosing scope
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*/
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const Scope *scope() const {
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return mScope;
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}
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/**
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* Get array dimensions.
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* @return array dimensions vector
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*/
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const std::vector<Dimension> &dimensions() const {
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return mDimensions;
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}
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/**
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* Get array dimension length.
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* @return length of dimension
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*/
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MathLib::bigint dimension(nonneg int index_) const {
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return mDimensions[index_].num;
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}
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/**
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* Get array dimension known.
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* @return length of dimension known
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*/
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bool dimensionKnown(nonneg int index_) const {
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return mDimensions[index_].known;
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}
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/**
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* Checks if the variable is an STL type ('std::')
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* E.g.:
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* std::string s;
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* ...
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* sVar->isStlType() == true
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* @return true if it is an stl type and its type matches any of the types in 'stlTypes'
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*/
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bool isStlType() const {
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return getFlag(fIsStlType);
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}
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/**
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* Checks if the variable is an STL type ('std::')
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* E.g.:
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* std::string s;
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* ...
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* sVar->isStlType() == true
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* @return true if it is an stl type and its type matches any of the types in 'stlTypes'
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*/
|
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bool isStlStringType() const {
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return getFlag(fIsStlString);
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}
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bool isSmartPointer() const {
|
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return getFlag(fIsSmartPointer);
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}
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const Type *smartPointerType() const;
|
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|
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/**
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* Checks if the variable is of any of the STL types passed as arguments ('std::')
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* E.g.:
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* std::string s;
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* ...
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|
* const char *str[] = {"string", "wstring"};
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* sVar->isStlType(str) == true
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* @param stlType stl type
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* @return true if it is an stl type and its type matches any of the types in 'stlTypes'
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*/
|
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bool isStlType(const std::string& stlType) const {
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return isStlType() && stlType==mTypeStartToken->strAt(2);
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}
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/**
|
|
* Checks if the variable is of any of the STL types passed as arguments ('std::')
|
|
* E.g.:
|
|
* std::string s;
|
|
* ...
|
|
* const std::set<std::string> str = make_container< std::set<std::string> >() << "string" << "wstring";
|
|
* sVar->isStlType(str) == true
|
|
* @param stlTypes set of stl types
|
|
* @return true if it is an stl type and its type matches any of the types in 'stlTypes'
|
|
*/
|
|
bool isStlType(const std::set<std::string>& stlTypes) const {
|
|
return isStlType() && stlTypes.find(mTypeStartToken->strAt(2))!=stlTypes.end();
|
|
}
|
|
|
|
/**
|
|
* Determine whether it's a floating number type
|
|
* @return true if the type is known and it's a floating type (float, double and long double) or a pointer/array to it
|
|
*/
|
|
bool isFloatingType() const {
|
|
return getFlag(fIsFloatType);
|
|
}
|
|
|
|
/**
|
|
* Determine whether it's an enumeration type
|
|
* @return true if the type is known and it's an enumeration type
|
|
*/
|
|
bool isEnumType() const {
|
|
return type() && type()->isEnumType();
|
|
}
|
|
|
|
bool isMaybeUnused() const {
|
|
return getFlag(fIsMaybeUnused);
|
|
}
|
|
|
|
const ValueType *valueType() const {
|
|
return mValueType;
|
|
}
|
|
|
|
void setValueType(const ValueType &valueType);
|
|
|
|
AccessControl accessControl() const {
|
|
return mAccess;
|
|
}
|
|
|
|
std::string getTypeName() const;
|
|
|
|
private:
|
|
// only symbol database can change the type
|
|
friend class SymbolDatabase;
|
|
|
|
/**
|
|
* Set Type pointer to known type.
|
|
* @param t type
|
|
*/
|
|
void type(const Type * t) {
|
|
mType = t;
|
|
}
|
|
|
|
/** @brief variable name token */
|
|
const Token *mNameToken;
|
|
|
|
/** @brief variable type start token */
|
|
const Token *mTypeStartToken;
|
|
|
|
/** @brief variable type end token */
|
|
const Token *mTypeEndToken;
|
|
|
|
/** @brief order declared */
|
|
nonneg int mIndex;
|
|
|
|
/** @brief what section is this variable declared in? */
|
|
AccessControl mAccess; // public/protected/private
|
|
|
|
/** @brief flags */
|
|
unsigned int mFlags;
|
|
|
|
/** @brief pointer to user defined type info (for known types) */
|
|
const Type *mType;
|
|
|
|
/** @brief pointer to scope this variable is in */
|
|
const Scope *mScope;
|
|
|
|
ValueType *mValueType;
|
|
|
|
/** @brief array dimensions */
|
|
std::vector<Dimension> mDimensions;
|
|
|
|
/** @brief fill in information, depending on Tokens given at instantiation */
|
|
void evaluate(const Settings* settings);
|
|
};
|
|
|
|
class CPPCHECKLIB Function {
|
|
// only symbol database can change this
|
|
friend class SymbolDatabase;
|
|
|
|
/** @brief flags mask used to access specific bit. */
|
|
enum {
|
|
fHasBody = (1 << 0), ///< @brief has implementation
|
|
fIsInline = (1 << 1), ///< @brief implementation in class definition
|
|
fIsConst = (1 << 2), ///< @brief is const
|
|
fHasVirtualSpecifier = (1 << 3), ///< @brief does declaration contain 'virtual' specifier
|
|
fIsPure = (1 << 4), ///< @brief is pure virtual
|
|
fIsStatic = (1 << 5), ///< @brief is static
|
|
fIsStaticLocal = (1 << 6), ///< @brief is static local
|
|
fIsExtern = (1 << 7), ///< @brief is extern
|
|
fIsFriend = (1 << 8), ///< @brief is friend
|
|
fIsExplicit = (1 << 9), ///< @brief is explicit
|
|
fIsDefault = (1 << 10), ///< @brief is default
|
|
fIsDelete = (1 << 11), ///< @brief is delete
|
|
fHasOverrideSpecifier = (1 << 12), ///< @brief does declaration contain 'override' specifier?
|
|
fHasFinalSpecifier = (1 << 13), ///< @brief does declaration contain 'final' specifier?
|
|
fIsNoExcept = (1 << 14), ///< @brief is noexcept
|
|
fIsThrow = (1 << 15), ///< @brief is throw
|
|
fIsOperator = (1 << 16), ///< @brief is operator
|
|
fHasLvalRefQual = (1 << 17), ///< @brief has & lvalue ref-qualifier
|
|
fHasRvalRefQual = (1 << 18), ///< @brief has && rvalue ref-qualifier
|
|
fIsVariadic = (1 << 19), ///< @brief is variadic
|
|
fIsVolatile = (1 << 20), ///< @brief is volatile
|
|
fHasTrailingReturnType = (1 << 21), ///< @brief has trailing return type
|
|
fIsEscapeFunction = (1 << 22), ///< @brief Function throws or exits
|
|
};
|
|
|
|
/**
|
|
* Get specified flag state.
|
|
* @param flag flag to get state of
|
|
* @return true if flag set or false in flag not set
|
|
*/
|
|
bool getFlag(unsigned int flag) const {
|
|
return ((mFlags & flag) != 0);
|
|
}
|
|
|
|
/**
|
|
* Set specified flag state.
|
|
* @param flag flag to set state
|
|
* @param state new state of flag
|
|
*/
|
|
void setFlag(unsigned int flag, bool state) {
|
|
mFlags = state ? mFlags | flag : mFlags & ~flag;
|
|
}
|
|
|
|
public:
|
|
enum Type { eConstructor, eCopyConstructor, eMoveConstructor, eOperatorEqual, eDestructor, eFunction, eLambda };
|
|
|
|
Function(const Tokenizer *mTokenizer, const Token *tok, const Scope *scope, const Token *tokDef, const Token *tokArgDef);
|
|
Function(const Token *tokenDef, const std::string &clangType);
|
|
|
|
const std::string &name() const {
|
|
return tokenDef->str();
|
|
}
|
|
|
|
std::string fullName() const;
|
|
|
|
nonneg int argCount() const {
|
|
return argumentList.size();
|
|
}
|
|
nonneg int minArgCount() const {
|
|
return argumentList.size() - initArgCount;
|
|
}
|
|
const Variable* getArgumentVar(nonneg int num) const;
|
|
nonneg int initializedArgCount() const {
|
|
return initArgCount;
|
|
}
|
|
void addArguments(const SymbolDatabase *symbolDatabase, const Scope *scope);
|
|
|
|
/** @brief check if this function is virtual in the base classes */
|
|
bool isImplicitlyVirtual(bool defaultVal = false) const;
|
|
|
|
/** @brief get function in base class that is overridden */
|
|
const Function *getOverriddenFunction(bool *foundAllBaseClasses = nullptr) const;
|
|
|
|
bool isLambda() const {
|
|
return type==eLambda;
|
|
}
|
|
|
|
bool isConstructor() const {
|
|
return type==eConstructor ||
|
|
type==eCopyConstructor ||
|
|
type==eMoveConstructor;
|
|
}
|
|
|
|
bool isDestructor() const {
|
|
return type==eDestructor;
|
|
}
|
|
bool isAttributeConstructor() const {
|
|
return tokenDef->isAttributeConstructor();
|
|
}
|
|
bool isAttributeDestructor() const {
|
|
return tokenDef->isAttributeDestructor();
|
|
}
|
|
bool isAttributePure() const {
|
|
return tokenDef->isAttributePure();
|
|
}
|
|
bool isAttributeConst() const {
|
|
return tokenDef->isAttributeConst();
|
|
}
|
|
bool isAttributeNoreturn() const {
|
|
return tokenDef->isAttributeNoreturn();
|
|
}
|
|
bool isAttributeNothrow() const {
|
|
return tokenDef->isAttributeNothrow();
|
|
}
|
|
bool isAttributeNodiscard() const {
|
|
return tokenDef->isAttributeNodiscard();
|
|
}
|
|
|
|
bool hasBody() const {
|
|
return getFlag(fHasBody);
|
|
}
|
|
bool isInline() const {
|
|
return getFlag(fIsInline);
|
|
}
|
|
bool isConst() const {
|
|
return getFlag(fIsConst);
|
|
}
|
|
bool hasVirtualSpecifier() const {
|
|
return getFlag(fHasVirtualSpecifier);
|
|
}
|
|
bool isPure() const {
|
|
return getFlag(fIsPure);
|
|
}
|
|
bool isStatic() const {
|
|
return getFlag(fIsStatic);
|
|
}
|
|
bool isStaticLocal() const {
|
|
return getFlag(fIsStaticLocal);
|
|
}
|
|
bool isExtern() const {
|
|
return getFlag(fIsExtern);
|
|
}
|
|
bool isFriend() const {
|
|
return getFlag(fIsFriend);
|
|
}
|
|
bool isExplicit() const {
|
|
return getFlag(fIsExplicit);
|
|
}
|
|
bool isDefault() const {
|
|
return getFlag(fIsDefault);
|
|
}
|
|
bool isDelete() const {
|
|
return getFlag(fIsDelete);
|
|
}
|
|
bool isNoExcept() const {
|
|
return getFlag(fIsNoExcept);
|
|
}
|
|
bool isThrow() const {
|
|
return getFlag(fIsThrow);
|
|
}
|
|
bool hasOverrideSpecifier() const {
|
|
return getFlag(fHasOverrideSpecifier);
|
|
}
|
|
bool hasFinalSpecifier() const {
|
|
return getFlag(fHasFinalSpecifier);
|
|
}
|
|
bool isOperator() const {
|
|
return getFlag(fIsOperator);
|
|
}
|
|
bool hasLvalRefQualifier() const {
|
|
return getFlag(fHasLvalRefQual);
|
|
}
|
|
bool hasRvalRefQualifier() const {
|
|
return getFlag(fHasRvalRefQual);
|
|
}
|
|
bool isVariadic() const {
|
|
return getFlag(fIsVariadic);
|
|
}
|
|
bool isVolatile() const {
|
|
return getFlag(fIsVolatile);
|
|
}
|
|
bool hasTrailingReturnType() const {
|
|
return getFlag(fHasTrailingReturnType);
|
|
}
|
|
void hasBody(bool state) {
|
|
setFlag(fHasBody, state);
|
|
}
|
|
|
|
bool isEscapeFunction() const {
|
|
return getFlag(fIsEscapeFunction);
|
|
}
|
|
void isEscapeFunction(bool state) {
|
|
setFlag(fIsEscapeFunction, state);
|
|
}
|
|
bool isSafe(const Settings *settings) const;
|
|
|
|
const Token *tokenDef; ///< function name token in class definition
|
|
const Token *argDef; ///< function argument start '(' in class definition
|
|
const Token *token; ///< function name token in implementation
|
|
const Token *arg; ///< function argument start '('
|
|
const Token *retDef; ///< function return type token
|
|
const ::Type *retType; ///< function return type
|
|
const Scope *functionScope; ///< scope of function body
|
|
const Scope* nestedIn; ///< Scope the function is declared in
|
|
std::list<Variable> argumentList; ///< argument list
|
|
nonneg int initArgCount; ///< number of args with default values
|
|
Type type; ///< constructor, destructor, ...
|
|
AccessControl access; ///< public/protected/private
|
|
const Token *noexceptArg; ///< noexcept token
|
|
const Token *throwArg; ///< throw token
|
|
const Token *templateDef; ///< points to 'template <' before function
|
|
const Token *functionPointerUsage; ///< function pointer usage
|
|
|
|
bool argsMatch(const Scope *scope, const Token *first, const Token *second, const std::string &path, nonneg int path_length) const;
|
|
|
|
static bool returnsReference(const Function* function, bool unknown = false);
|
|
|
|
static std::vector<const Token*> findReturns(const Function* f);
|
|
|
|
const Token* returnDefEnd() const {
|
|
if (this->hasTrailingReturnType()) {
|
|
return Token::findmatch(retDef, "{|;");
|
|
} else {
|
|
return tokenDef;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return token to ":" if the function is a constructor
|
|
* and it contains member initialization otherwise a nullptr is returned
|
|
*/
|
|
const Token * constructorMemberInitialization() const;
|
|
|
|
private:
|
|
/** Recursively determine if this function overrides a virtual function in a base class */
|
|
const Function * getOverriddenFunctionRecursive(const ::Type* baseType, bool *foundAllBaseClasses) const;
|
|
|
|
unsigned int mFlags;
|
|
|
|
void isInline(bool state) {
|
|
setFlag(fIsInline, state);
|
|
}
|
|
void isConst(bool state) {
|
|
setFlag(fIsConst, state);
|
|
}
|
|
void hasVirtualSpecifier(bool state) {
|
|
setFlag(fHasVirtualSpecifier, state);
|
|
}
|
|
void isPure(bool state) {
|
|
setFlag(fIsPure, state);
|
|
}
|
|
void isStatic(bool state) {
|
|
setFlag(fIsStatic, state);
|
|
}
|
|
void isStaticLocal(bool state) {
|
|
setFlag(fIsStaticLocal, state);
|
|
}
|
|
void isExtern(bool state) {
|
|
setFlag(fIsExtern, state);
|
|
}
|
|
void isFriend(bool state) {
|
|
setFlag(fIsFriend, state);
|
|
}
|
|
void isExplicit(bool state) {
|
|
setFlag(fIsExplicit, state);
|
|
}
|
|
void isDefault(bool state) {
|
|
setFlag(fIsDefault, state);
|
|
}
|
|
void isDelete(bool state) {
|
|
setFlag(fIsDelete, state);
|
|
}
|
|
void isNoExcept(bool state) {
|
|
setFlag(fIsNoExcept, state);
|
|
}
|
|
void isThrow(bool state) {
|
|
setFlag(fIsThrow, state);
|
|
}
|
|
void isOperator(bool state) {
|
|
setFlag(fIsOperator, state);
|
|
}
|
|
void hasLvalRefQualifier(bool state) {
|
|
setFlag(fHasLvalRefQual, state);
|
|
}
|
|
void hasRvalRefQualifier(bool state) {
|
|
setFlag(fHasRvalRefQual, state);
|
|
}
|
|
void isVariadic(bool state) {
|
|
setFlag(fIsVariadic, state);
|
|
}
|
|
void isVolatile(bool state) {
|
|
setFlag(fIsVolatile, state);
|
|
}
|
|
void hasTrailingReturnType(bool state) {
|
|
return setFlag(fHasTrailingReturnType, state);
|
|
}
|
|
const Token *setFlags(const Token *tok1, const Scope *scope);
|
|
};
|
|
|
|
class CPPCHECKLIB Scope {
|
|
// let tests access private function for testing
|
|
friend class TestSymbolDatabase;
|
|
|
|
public:
|
|
struct UsingInfo {
|
|
const Token *start;
|
|
const Scope *scope;
|
|
};
|
|
|
|
enum ScopeType { eGlobal, eClass, eStruct, eUnion, eNamespace, eFunction, eIf, eElse, eFor, eWhile, eDo, eSwitch, eUnconditional, eTry, eCatch, eLambda, eEnum };
|
|
|
|
Scope(const SymbolDatabase *check_, const Token *classDef_, const Scope *nestedIn_);
|
|
Scope(const SymbolDatabase *check_, const Token *classDef_, const Scope *nestedIn_, ScopeType type_, const Token *start_);
|
|
|
|
const SymbolDatabase *check;
|
|
std::string className;
|
|
const Token *classDef; ///< class/struct/union/namespace token
|
|
const Token *bodyStart; ///< '{' token
|
|
const Token *bodyEnd; ///< '}' token
|
|
std::list<Function> functionList;
|
|
std::multimap<std::string, const Function *> functionMap;
|
|
std::list<Variable> varlist;
|
|
const Scope *nestedIn;
|
|
std::list<Scope *> nestedList;
|
|
nonneg int numConstructors;
|
|
nonneg int numCopyOrMoveConstructors;
|
|
std::list<UsingInfo> usingList;
|
|
ScopeType type;
|
|
Type* definedType;
|
|
std::map<std::string, Type*> definedTypesMap;
|
|
|
|
// function specific fields
|
|
const Scope *functionOf; ///< scope this function belongs to
|
|
Function *function; ///< function info for this function
|
|
|
|
// enum specific fields
|
|
const Token * enumType;
|
|
bool enumClass;
|
|
|
|
std::vector<Enumerator> enumeratorList;
|
|
|
|
const Enumerator * findEnumerator(const std::string & name) const {
|
|
for (const Enumerator & i : enumeratorList) {
|
|
if (i.name->str() == name)
|
|
return &i;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
bool isNestedIn(const Scope * outer) const {
|
|
if (!outer)
|
|
return false;
|
|
if (outer == this)
|
|
return true;
|
|
const Scope * parent = nestedIn;
|
|
while (outer != parent && parent)
|
|
parent = parent->nestedIn;
|
|
if (parent && parent == outer)
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
static Function* nestedInFunction(const Scope* scope) {
|
|
while (scope) {
|
|
if (scope->type == Scope::eFunction)
|
|
break;
|
|
scope = scope->nestedIn;
|
|
}
|
|
if (!scope)
|
|
return nullptr;
|
|
return scope->function;
|
|
}
|
|
|
|
bool isClassOrStruct() const {
|
|
return (type == eClass || type == eStruct);
|
|
}
|
|
|
|
bool isClassOrStructOrUnion() const {
|
|
return (type == eClass || type == eStruct || type == eUnion);
|
|
}
|
|
|
|
bool isExecutable() const {
|
|
return type != eClass && type != eStruct && type != eUnion && type != eGlobal && type != eNamespace && type != eEnum;
|
|
}
|
|
|
|
bool isLoopScope() const {
|
|
return type == Scope::ScopeType::eFor || type == Scope::ScopeType::eWhile || type == Scope::ScopeType::eDo;
|
|
}
|
|
|
|
bool isLocal() const {
|
|
return (type == eIf || type == eElse ||
|
|
type == eFor || type == eWhile || type == eDo ||
|
|
type == eSwitch || type == eUnconditional ||
|
|
type == eTry || type == eCatch);
|
|
}
|
|
|
|
// Is there lambda/inline function(s) in this scope?
|
|
bool hasInlineOrLambdaFunction() const;
|
|
|
|
/**
|
|
* @brief find a function
|
|
* @param tok token of function call
|
|
* @param requireConst if const refers to a const variable only const methods should be matched
|
|
* @return pointer to function if found or NULL if not found
|
|
*/
|
|
const Function *findFunction(const Token *tok, bool requireConst=false) const;
|
|
|
|
/**
|
|
* @brief find if name is in nested list
|
|
* @param name name of nested scope
|
|
*/
|
|
Scope *findInNestedList(const std::string & name);
|
|
|
|
const Scope *findRecordInNestedList(const std::string & name) const;
|
|
Scope *findRecordInNestedList(const std::string & name) {
|
|
return const_cast<Scope *>(const_cast<const Scope *>(this)->findRecordInNestedList(name));
|
|
}
|
|
|
|
const Type* findType(const std::string& name) const;
|
|
Type* findType(const std::string& name) {
|
|
return const_cast<Type*>(const_cast<const Scope *>(this)->findType(name));
|
|
}
|
|
|
|
/**
|
|
* @brief find if name is in nested list
|
|
* @param name name of nested scope
|
|
*/
|
|
Scope *findInNestedListRecursive(const std::string & name);
|
|
|
|
void addVariable(const Token *token_, const Token *start_,
|
|
const Token *end_, AccessControl access_, const Type *type_,
|
|
const Scope *scope_, const Settings* settings);
|
|
|
|
/** @brief initialize varlist */
|
|
void getVariableList(const Settings* settings);
|
|
|
|
const Function *getDestructor() const;
|
|
|
|
void addFunction(const Function & func) {
|
|
functionList.push_back(func);
|
|
|
|
const Function * back = &functionList.back();
|
|
|
|
functionMap.insert(make_pair(back->tokenDef->str(), back));
|
|
}
|
|
|
|
bool hasDefaultConstructor() const;
|
|
|
|
AccessControl defaultAccess() const;
|
|
|
|
/**
|
|
* @brief check if statement is variable declaration and add it if it is
|
|
* @param tok pointer to start of statement
|
|
* @param varaccess access control of statement
|
|
* @param settings Settings
|
|
* @return pointer to last token
|
|
*/
|
|
const Token *checkVariable(const Token *tok, AccessControl varaccess, const Settings* settings);
|
|
|
|
/**
|
|
* @brief get variable from name
|
|
* @param varname name of variable
|
|
* @return pointer to variable
|
|
*/
|
|
const Variable *getVariable(const std::string &varname) const;
|
|
|
|
const Token * addEnum(const Token * tok, bool isCpp);
|
|
|
|
const Scope *findRecordInBase(const std::string &name) const;
|
|
|
|
private:
|
|
/**
|
|
* @brief helper function for getVariableList()
|
|
* @param tok pointer to token to check
|
|
* @param vartok populated with pointer to the variable token, if found
|
|
* @param typetok populated with pointer to the type token, if found
|
|
* @return true if tok points to a variable declaration, false otherwise
|
|
*/
|
|
bool isVariableDeclaration(const Token* const tok, const Token*& vartok, const Token*& typetok) const;
|
|
|
|
void findFunctionInBase(const std::string & name, nonneg int args, std::vector<const Function *> & matches) const;
|
|
};
|
|
|
|
enum class Reference {
|
|
None,
|
|
LValue,
|
|
RValue
|
|
};
|
|
|
|
/** Value type */
|
|
class CPPCHECKLIB ValueType {
|
|
public:
|
|
enum Sign { UNKNOWN_SIGN, SIGNED, UNSIGNED } sign;
|
|
enum Type { UNKNOWN_TYPE, NONSTD, RECORD, CONTAINER, ITERATOR, VOID, BOOL, CHAR, SHORT, WCHAR_T, INT, LONG, LONGLONG, UNKNOWN_INT, FLOAT, DOUBLE, LONGDOUBLE } type;
|
|
nonneg int bits; ///< bitfield bitcount
|
|
nonneg int pointer; ///< 0=>not pointer, 1=>*, 2=>**, 3=>***, etc
|
|
nonneg int constness; ///< bit 0=data, bit 1=*, bit 2=**
|
|
Reference reference = Reference::None;///< Is the outermost indirection of this type a reference or rvalue reference or not? pointer=2, Reference=LValue would be a T**&
|
|
const Scope *typeScope; ///< if the type definition is seen this point out the type scope
|
|
const ::Type *smartPointerType; ///< Smart pointer type
|
|
const Token* smartPointerTypeToken; ///< Smart pointer type token
|
|
const Library::Container *container; ///< If the type is a container defined in a cfg file, this is the used container
|
|
const Token *containerTypeToken; ///< The container type token. the template argument token that defines the container element type.
|
|
std::string originalTypeName; ///< original type name as written in the source code. eg. this might be "uint8_t" when type is CHAR.
|
|
|
|
ValueType()
|
|
: sign(UNKNOWN_SIGN),
|
|
type(UNKNOWN_TYPE),
|
|
bits(0),
|
|
pointer(0U),
|
|
constness(0U),
|
|
typeScope(nullptr),
|
|
smartPointerType(nullptr),
|
|
smartPointerTypeToken(nullptr),
|
|
container(nullptr),
|
|
containerTypeToken(nullptr)
|
|
{}
|
|
ValueType(enum Sign s, enum Type t, nonneg int p)
|
|
: sign(s),
|
|
type(t),
|
|
bits(0),
|
|
pointer(p),
|
|
constness(0U),
|
|
typeScope(nullptr),
|
|
smartPointerType(nullptr),
|
|
smartPointerTypeToken(nullptr),
|
|
container(nullptr),
|
|
containerTypeToken(nullptr)
|
|
{}
|
|
ValueType(enum Sign s, enum Type t, nonneg int p, nonneg int c)
|
|
: sign(s),
|
|
type(t),
|
|
bits(0),
|
|
pointer(p),
|
|
constness(c),
|
|
typeScope(nullptr),
|
|
smartPointerType(nullptr),
|
|
smartPointerTypeToken(nullptr),
|
|
container(nullptr),
|
|
containerTypeToken(nullptr)
|
|
{}
|
|
ValueType(enum Sign s, enum Type t, nonneg int p, nonneg int c, const std::string& otn)
|
|
: sign(s),
|
|
type(t),
|
|
bits(0),
|
|
pointer(p),
|
|
constness(c),
|
|
typeScope(nullptr),
|
|
smartPointerType(nullptr),
|
|
smartPointerTypeToken(nullptr),
|
|
container(nullptr),
|
|
containerTypeToken(nullptr),
|
|
originalTypeName(otn)
|
|
{}
|
|
static ValueType parseDecl(const Token *type, const Settings *settings);
|
|
|
|
static Type typeFromString(const std::string &typestr, bool longType);
|
|
|
|
enum class MatchResult { UNKNOWN, SAME, FALLBACK1, FALLBACK2, NOMATCH };
|
|
static MatchResult matchParameter(const ValueType *call, const ValueType *func);
|
|
static MatchResult matchParameter(const ValueType *call, const Variable *callVar, const Variable *funcVar);
|
|
|
|
bool isIntegral() const {
|
|
return (type >= ValueType::Type::BOOL && type <= ValueType::Type::UNKNOWN_INT);
|
|
}
|
|
|
|
bool isFloat() const {
|
|
return (type >= ValueType::Type::FLOAT && type <= ValueType::Type::LONGDOUBLE);
|
|
}
|
|
|
|
bool fromLibraryType(const std::string &typestr, const Settings *settings);
|
|
|
|
bool isEnum() const {
|
|
return typeScope && typeScope->type == Scope::eEnum;
|
|
}
|
|
|
|
MathLib::bigint typeSize(const cppcheck::Platform &platform, bool p=false) const;
|
|
|
|
std::string str() const;
|
|
std::string dump() const;
|
|
};
|
|
|
|
|
|
class CPPCHECKLIB SymbolDatabase {
|
|
friend class TestSymbolDatabase;
|
|
public:
|
|
SymbolDatabase(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger);
|
|
~SymbolDatabase();
|
|
|
|
/** @brief Information about all namespaces/classes/structrues */
|
|
std::list<Scope> scopeList;
|
|
|
|
/** @brief Fast access to function scopes */
|
|
std::vector<const Scope *> functionScopes;
|
|
|
|
/** @brief Fast access to class and struct scopes */
|
|
std::vector<const Scope *> classAndStructScopes;
|
|
|
|
/** @brief Fast access to types */
|
|
std::list<Type> typeList;
|
|
|
|
/**
|
|
* @brief find a variable type if it's a user defined type
|
|
* @param start scope to start looking in
|
|
* @param typeTok token containing variable type
|
|
* @return pointer to type if found or NULL if not found
|
|
*/
|
|
const Type *findVariableType(const Scope *start, const Token *typeTok) const;
|
|
|
|
/**
|
|
* @brief find a function
|
|
* @param tok token of function call
|
|
* @return pointer to function if found or NULL if not found
|
|
*/
|
|
const Function *findFunction(const Token *tok) const;
|
|
|
|
const Scope *findScopeByName(const std::string& name) const;
|
|
|
|
const Type* findType(const Token *startTok, const Scope *startScope) const;
|
|
Type* findType(const Token *startTok, Scope *startScope) const {
|
|
return const_cast<Type*>(this->findType(startTok, const_cast<const Scope *>(startScope)));
|
|
}
|
|
|
|
const Scope *findScope(const Token *tok, const Scope *startScope) const;
|
|
Scope *findScope(const Token *tok, Scope *startScope) const {
|
|
return const_cast<Scope *>(this->findScope(tok, const_cast<const Scope *>(startScope)));
|
|
}
|
|
|
|
bool isVarId(nonneg int varid) const {
|
|
return varid < mVariableList.size();
|
|
}
|
|
|
|
const Variable *getVariableFromVarId(nonneg int varId) const {
|
|
return mVariableList.at(varId);
|
|
}
|
|
|
|
const std::vector<const Variable *> & variableList() const {
|
|
return mVariableList;
|
|
}
|
|
|
|
/**
|
|
* @brief output a debug message
|
|
*/
|
|
void debugMessage(const Token *tok, const std::string &type, const std::string &msg) const;
|
|
|
|
void printOut(const char * title = nullptr) const;
|
|
void printVariable(const Variable *var, const char *indent) const;
|
|
void printXml(std::ostream &out) const;
|
|
|
|
bool isCPP() const;
|
|
|
|
/*
|
|
* @brief Do a sanity check
|
|
*/
|
|
void validate() const;
|
|
|
|
void validateExecutableScopes() const;
|
|
/**
|
|
* @brief Check variable list, e.g. variables w/o scope
|
|
*/
|
|
void validateVariables() const;
|
|
|
|
/** Set valuetype in provided tokenlist */
|
|
void setValueTypeInTokenList(bool reportDebugWarnings, Token *tokens=nullptr);
|
|
|
|
/**
|
|
* Calculates sizeof value for given type.
|
|
* @param type Token which will contain e.g. "int", "*", or string.
|
|
* @return sizeof for given type, or 0 if it can't be calculated.
|
|
*/
|
|
nonneg int sizeOfType(const Token *type) const;
|
|
|
|
/** Set array dimensions when valueflow analysis is completed */
|
|
void setArrayDimensionsUsingValueFlow();
|
|
|
|
void clangSetVariables(const std::vector<const Variable *> &variableList);
|
|
void createSymbolDatabaseExprIds();
|
|
|
|
private:
|
|
friend class Scope;
|
|
friend class Function;
|
|
|
|
// Create symboldatabase...
|
|
void createSymbolDatabaseFindAllScopes();
|
|
void createSymbolDatabaseClassInfo();
|
|
void createSymbolDatabaseVariableInfo();
|
|
void createSymbolDatabaseCopyAndMoveConstructors();
|
|
void createSymbolDatabaseFunctionScopes();
|
|
void createSymbolDatabaseClassAndStructScopes();
|
|
void createSymbolDatabaseFunctionReturnTypes();
|
|
void createSymbolDatabaseNeedInitialization();
|
|
void createSymbolDatabaseVariableSymbolTable();
|
|
void createSymbolDatabaseSetScopePointers();
|
|
void createSymbolDatabaseSetFunctionPointers(bool firstPass);
|
|
void createSymbolDatabaseSetVariablePointers();
|
|
void createSymbolDatabaseSetTypePointers();
|
|
void createSymbolDatabaseSetSmartPointerType();
|
|
void createSymbolDatabaseEnums();
|
|
void createSymbolDatabaseEscapeFunctions();
|
|
void createSymbolDatabaseIncompleteVars();
|
|
|
|
void addClassFunction(Scope **scope, const Token **tok, const Token *argStart);
|
|
Function *addGlobalFunctionDecl(Scope*& scope, const Token* tok, const Token *argStart, const Token* funcStart);
|
|
Function *addGlobalFunction(Scope*& scope, const Token*& tok, const Token *argStart, const Token* funcStart);
|
|
void addNewFunction(Scope **scope, const Token **tok);
|
|
bool isFunction(const Token *tok, const Scope* outerScope, const Token **funcStart, const Token **argStart, const Token** declEnd) const;
|
|
const Type *findTypeInNested(const Token *startTok, const Scope *startScope) const;
|
|
const Scope *findNamespace(const Token * tok, const Scope * scope) const;
|
|
Function *findFunctionInScope(const Token *func, const Scope *ns, const std::string & path, nonneg int path_length);
|
|
const Type *findVariableTypeInBase(const Scope *scope, const Token *typeTok) const;
|
|
|
|
typedef std::map<unsigned int, unsigned int> MemberIdMap;
|
|
typedef std::map<unsigned int, MemberIdMap> VarIdMap;
|
|
|
|
void fixVarId(VarIdMap & varIds, const Token * vartok, Token * membertok, const Variable * membervar);
|
|
|
|
/** Whether iName is a keyword as defined in http://en.cppreference.com/w/c/keyword and http://en.cppreference.com/w/cpp/keyword*/
|
|
bool isReservedName(const std::string& iName) const;
|
|
|
|
const Enumerator * findEnumerator(const Token * tok) const;
|
|
|
|
void setValueType(Token *tok, const ValueType &valuetype);
|
|
void setValueType(Token *tok, const Variable &var);
|
|
void setValueType(Token *tok, const Enumerator &enumerator);
|
|
|
|
const Tokenizer *mTokenizer;
|
|
const Settings *mSettings;
|
|
ErrorLogger *mErrorLogger;
|
|
|
|
/** variable symbol table */
|
|
std::vector<const Variable *> mVariableList;
|
|
|
|
/** list for missing types */
|
|
std::list<Type> mBlankTypes;
|
|
|
|
bool mIsCpp;
|
|
ValueType::Sign mDefaultSignedness;
|
|
|
|
/** "negative cache" list of tokens that we find are not enumeration values */
|
|
mutable std::set<std::string> mTokensThatAreNotEnumeratorValues;
|
|
};
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
#endif // symboldatabaseH
|