256 lines
8.1 KiB
C++
256 lines
8.1 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2010 Daniel Marjamäki and 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 <string>
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#include <list>
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#include <vector>
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class Token;
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class Tokenizer;
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class Settings;
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class ErrorLogger;
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class SymbolDatabase
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{
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public:
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/**
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* @brief Access control.
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*/
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enum AccessControl { Public, Protected, Private };
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SymbolDatabase(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger);
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~SymbolDatabase();
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/** @brief Information about a member variable. Used when checking for uninitialized variables */
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class Var
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{
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public:
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Var(const Token *token_, unsigned int index_, AccessControl access_, bool mutable_, bool static_, bool const_, bool class_)
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: token(token_),
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index(index_),
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assign(false),
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init(false),
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access(access_),
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isMutable(mutable_),
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isStatic(static_),
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isConst(const_),
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isClass(class_)
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{
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}
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/** @brief variable token */
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const Token *token;
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/** @brief order declared */
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unsigned int index;
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/** @brief has this variable been assigned? */
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bool assign;
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/** @brief has this variable been initialized? */
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bool init;
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/** @brief what section is this variable declared in? */
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AccessControl access; // public/protected/private
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/** @brief is this variable mutable? */
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bool isMutable;
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/** @brief is this variable static? */
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bool isStatic;
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/** @brief is this variable const? */
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bool isConst;
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/** @brief is this variable a class (or unknown type)? */
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bool isClass;
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};
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class Func
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{
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public:
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enum Type { Constructor, CopyConstructor, OperatorEqual, Destructor, Function };
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Func()
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: tokenDef(NULL),
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argDef(NULL),
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token(NULL),
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arg(NULL),
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access(Public),
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hasBody(false),
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isInline(false),
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isConst(false),
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isVirtual(false),
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isPure(false),
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isStatic(false),
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isFriend(false),
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isExplicit(false),
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isOperator(false),
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retFuncPtr(false),
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type(Function)
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{
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}
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const Token *tokenDef; // function name token in class definition
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const Token *argDef; // function argument start '(' in class definition
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const Token *token; // function name token in implementation
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const Token *arg; // function argument start '('
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AccessControl access; // public/protected/private
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bool hasBody; // has implementation
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bool isInline; // implementation in class definition
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bool isConst; // is const
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bool isVirtual; // is virtual
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bool isPure; // is pure virtual
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bool isStatic; // is static
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bool isFriend; // is friend
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bool isExplicit; // is explicit
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bool isOperator; // is operator
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bool retFuncPtr; // returns function pointer
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Type type; // constructor, destructor, ...
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};
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class SpaceInfo;
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struct BaseInfo
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{
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AccessControl access; // public/protected/private
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std::string name;
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SpaceInfo *spaceInfo;
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};
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struct FriendInfo
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{
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std::string name;
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SpaceInfo *spaceInfo;
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};
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class SpaceInfo
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{
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public:
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enum SpaceType { Global, Class, Struct, Union, Namespace, Function };
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SpaceInfo(SymbolDatabase *check_, const Token *classDef_, SpaceInfo *nestedIn_);
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SymbolDatabase *check;
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SpaceType type;
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std::string className;
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const Token *classDef; // class/struct/union/namespace token
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const Token *classStart; // '{' token
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const Token *classEnd; // '}' token
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std::list<Func> functionList;
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std::list<Var> varlist;
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std::vector<BaseInfo> derivedFrom;
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std::list<FriendInfo> friendList;
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SpaceInfo *nestedIn;
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std::list<SpaceInfo *> nestedList;
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AccessControl access;
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unsigned int numConstructors;
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bool isClassOrStruct() const
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{
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return (type == Class || type == Struct);
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}
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/**
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* @brief find if name is in nested list
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* @param name name of nested space
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*/
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SpaceInfo * findInNestedList(const std::string & name);
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/**
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* @brief assign a variable in the varlist
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* @param varname name of variable to mark assigned
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*/
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void assignVar(const std::string &varname);
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/**
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* @brief initialize a variable in the varlist
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* @param varname name of variable to mark initialized
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*/
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void initVar(const std::string &varname);
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void addVar(const Token *token_, AccessControl access_, bool mutable_, bool static_, bool const_, bool class_)
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{
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varlist.push_back(Var(token_, varlist.size(), access_, mutable_, static_, const_, class_));
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}
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/**
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* @brief set all variables in list assigned
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*/
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void assignAllVar();
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/**
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* @brief set all variables in list not assigned and not initialized
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*/
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void clearAllVar();
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/** @brief initialize varlist */
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void getVarList();
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/**
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* @brief parse a scope for a constructor or member function and set the "init" flags in the provided varlist
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* @param func reference to the function that should be checked
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* @param callstack the function doesn't look into recursive function calls.
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*/
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void initializeVarList(const Func &func, std::list<std::string> &callstack);
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const Func *getDestructor() const;
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/**
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* @brief get the number of nested spaces that are not functions
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*
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* This returns the number of user defined types (class, struct, union)
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* that are defined in this user defined type or namespace.
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*/
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unsigned int getNestedNonFunctions() const;
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bool isBaseClassFunc(const Token *tok);
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};
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bool isMemberVar(const SpaceInfo *info, const Token *tok);
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bool isConstMemberFunc(const SpaceInfo *info, const Token *tok);
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bool checkConstFunc(const SpaceInfo *info, const Token *tok);
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const Token *initBaseInfo(SpaceInfo *info, const Token *tok);
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/** @brief check if this function is virtual in the base classes */
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bool isVirtualFunc(const SymbolDatabase::SpaceInfo *info, const Token *functionToken) const;
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/** @brief Information about all namespaces/classes/structrues */
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std::list<SpaceInfo *> spaceInfoList;
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private:
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void addFunction(SpaceInfo **info, const Token **tok, const Token *argStart);
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void addNewFunction(SpaceInfo **info, const Token **tok);
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bool isFunction(const Token *tok, const Token **funcStart, const Token **argStart) const;
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bool argsMatch(const Token *first, const Token *second, const std::string &path, unsigned int depth) const;
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const Tokenizer *_tokenizer;
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const Settings *_settings;
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ErrorLogger *_errorLogger;
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};
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#endif
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