1905 lines
60 KiB
C++
1905 lines
60 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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#include "symboldatabase.h"
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#include "tokenize.h"
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#include "token.h"
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#include "settings.h"
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#include "errorlogger.h"
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#include "check.h"
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#include <locale>
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#include <cstring>
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#include <string>
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#include <sstream>
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#include <algorithm>
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//---------------------------------------------------------------------------
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SymbolDatabase::SymbolDatabase(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
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: _tokenizer(tokenizer), _settings(settings), _errorLogger(errorLogger)
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{
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// find all namespaces (class,struct and namespace)
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SpaceInfo *info = new SpaceInfo(this, NULL, NULL);
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spaceInfoList.push_back(info);
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for (const Token *tok = _tokenizer->tokens(); tok; tok = tok->next())
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{
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// Locate next class
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if (Token::Match(tok, "class|struct|namespace %var% [{:]"))
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{
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SpaceInfo *new_info = new SpaceInfo(this, tok, info);
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const Token *tok2 = tok->tokAt(2);
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// only create base list for classes and structures
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if (new_info->isClassOrStruct())
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{
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// goto initial '{'
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tok2 = initBaseInfo(new_info, tok);
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}
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new_info->classStart = tok2;
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new_info->classEnd = tok2->link();
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info = new_info;
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// add namespace
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spaceInfoList.push_back(info);
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tok = tok2;
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}
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else
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{
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// check for end of space
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if (tok == info->classEnd)
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{
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info = info->nestedIn;
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continue;
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}
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// check if in class or structure
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else if (info->type == SpaceInfo::Class || info->type == SpaceInfo::Struct)
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{
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const Token *funcStart = 0;
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const Token *argStart = 0;
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// What section are we in..
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if (tok->str() == "private:")
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info->access = Private;
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else if (tok->str() == "protected:")
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info->access = Protected;
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else if (tok->str() == "public:")
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info->access = Public;
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else if (Token::Match(tok, "public|protected|private %var% :"))
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{
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if (tok->str() == "private")
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info->access = Private;
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else if (tok->str() == "protected")
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info->access = Protected;
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else if (tok->str() == "public")
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info->access = Public;
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tok = tok->tokAt(2);
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}
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// class function?
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else if (tok->previous()->str() != "::" && isFunction(tok, &funcStart, &argStart))
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{
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Func function;
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// save the function definition argument start '('
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function.argDef = argStart;
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// save the access type
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function.access = info->access;
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// save the function name location
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function.tokenDef = funcStart;
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// operator function
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if (function.tokenDef->previous()->str() == "operator")
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{
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function.isOperator = true;
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// 'operator =' is special
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if (function.tokenDef->str() == "=")
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function.type = Func::OperatorEqual;
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}
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// class constructor/destructor
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else if (function.tokenDef->str() == info->className)
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{
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if (function.tokenDef->previous()->str() == "~")
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function.type = Func::Destructor;
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else if ((Token::Match(function.tokenDef, "%var% ( const %var% & )") ||
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Token::Match(function.tokenDef, "%var% ( const %var% & %var% )")) &&
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function.tokenDef->strAt(3) == info->className)
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function.type = Func::CopyConstructor;
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else
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function.type = Func::Constructor;
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if (function.tokenDef->previous()->str() == "explicit")
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function.isExplicit = true;
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}
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// function returning function pointer
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else if (tok->str() == "(")
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{
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function.retFuncPtr = true;
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}
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const Token *tok1 = tok;
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// look for end of previous statement
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while (tok1->previous() && !Token::Match(tok1->previous(), ";|}|{|public:|protected:|private:"))
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{
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// virtual function
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if (tok1->previous()->str() == "virtual")
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{
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function.isVirtual = true;
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break;
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}
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// static function
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else if (tok1->previous()->str() == "static")
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{
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function.isStatic = true;
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break;
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}
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// friend function
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else if (tok1->previous()->str() == "friend")
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{
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function.isFriend = true;
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break;
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}
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tok1 = tok1->previous();
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}
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const Token *end;
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if (!function.retFuncPtr)
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end = function.argDef->link();
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else
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end = tok->link()->next()->link();
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// const function
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if (end->next()->str() == "const")
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function.isConst = true;
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// pure virtual function
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if (Token::Match(end, ") const| = 0 ;"))
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function.isPure = true;
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// count the number of constructors
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if (function.type == Func::Constructor || function.type == Func::CopyConstructor)
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info->numConstructors++;
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// assume implementation is inline (definition and implementation same)
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function.token = function.tokenDef;
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// out of line function
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if (Token::Match(end, ") const| ;") ||
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Token::Match(end, ") const| = 0 ;"))
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{
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// find the function implementation later
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tok = end->next();
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info->functionList.push_back(function);
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}
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// inline function
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else
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{
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function.isInline = true;
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function.hasBody = true;
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function.arg = function.argDef;
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info->functionList.push_back(function);
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const Token *tok2 = funcStart;
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SpaceInfo *functionOf = info;
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addNewFunction(&info, &tok2);
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info->functionOf = functionOf;
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tok = tok2;
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}
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}
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// nested class function?
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else if (tok->previous()->str() == "::" && isFunction(tok, &funcStart, &argStart))
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addFunction(&info, &tok, argStart);
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// friend class declaration?
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else if (Token::Match(tok, "friend class| %any% ;"))
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{
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FriendInfo friendInfo;
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friendInfo.name = tok->strAt(1) == "class" ? tok->strAt(2) : tok->strAt(1);
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/** @todo fill this in later after parsing is complete */
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friendInfo.spaceInfo = 0;
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info->friendList.push_back(friendInfo);
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}
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}
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else if (info->type == SpaceInfo::Namespace || info->type == SpaceInfo::Global)
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{
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const Token *funcStart = 0;
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const Token *argStart = 0;
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// function?
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if (isFunction(tok, &funcStart, &argStart))
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{
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// has body?
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if (Token::Match(argStart->link(), ") const| {|:"))
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{
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// class function
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if (tok->previous() && tok->previous()->str() == "::")
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addFunction(&info, &tok, argStart);
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// class destructor
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else if (tok->previous() && tok->previous()->str() == "~" &&
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tok->previous()->previous() && tok->previous()->previous()->str() == "::")
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addFunction(&info, &tok, argStart);
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// regular function
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else
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{
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Func function;
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// save the function definition argument start '('
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function.argDef = argStart;
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// save the access type
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function.access = Public;
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// save the function name location
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function.tokenDef = funcStart;
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function.token = funcStart;
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function.isInline = false;
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function.hasBody = true;
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function.arg = function.argDef;
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function.type = Func::Function;
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info->functionList.push_back(function);
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addNewFunction(&info, &tok);
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}
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}
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// function returning function pointer with body
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else if (Token::simpleMatch(argStart->link(), ") ) (") &&
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Token::Match(argStart->link()->tokAt(2)->link(), ") const| {"))
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{
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const Token *tok1 = funcStart;
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// class function
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if (tok1->previous()->str() == "::")
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addFunction(&info, &tok1, argStart);
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// regular function
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else
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addNewFunction(&info, &tok1);
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tok = tok1;
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}
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}
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}
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}
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}
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std::list<SpaceInfo *>::iterator it;
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// fill in base class info
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for (it = spaceInfoList.begin(); it != spaceInfoList.end(); ++it)
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{
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info = *it;
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// skip namespaces and functions
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if (!info->isClassOrStruct())
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continue;
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// finish filling in base class info
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for (unsigned int i = 0; i < info->derivedFrom.size(); ++i)
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{
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std::list<SpaceInfo *>::iterator it1;
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for (it1 = spaceInfoList.begin(); it1 != spaceInfoList.end(); ++it1)
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{
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SpaceInfo *spaceInfo = *it1;
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/** @todo handle derived base classes and namespaces */
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if (spaceInfo->type == SpaceInfo::Class || spaceInfo->type == SpaceInfo::Struct)
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{
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// do class names match?
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if (spaceInfo->className == info->derivedFrom[i].name)
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{
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// are they in the same namespace or different namespaces with same name?
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if ((spaceInfo->nestedIn == info->nestedIn) ||
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((spaceInfo->nestedIn && spaceInfo->nestedIn->type == SpaceInfo::Namespace) &&
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(info->nestedIn && info->nestedIn->type == SpaceInfo::Namespace) &&
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(spaceInfo->nestedIn->className == info->nestedIn->className)))
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{
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info->derivedFrom[i].spaceInfo = spaceInfo;
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break;
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}
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}
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}
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}
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}
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}
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// fill in variable info
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for (it = spaceInfoList.begin(); it != spaceInfoList.end(); ++it)
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{
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info = *it;
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// skip functions
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if (info->type != SpaceInfo::Function)
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{
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// find variables
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info->getVarList();
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}
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}
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// determine if user defined type needs initialization
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unsigned int unknowns = 0; // stop checking when there are no unknowns
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unsigned int retry = 0; // bail if we don't resolve all the variable types for some reason
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do
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{
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unknowns = 0;
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for (it = spaceInfoList.begin(); it != spaceInfoList.end(); ++it)
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{
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info = *it;
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if (info->isClassOrStruct() && info->needInitialization == SpaceInfo::Unknown)
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{
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// check for default constructor
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bool hasDefaultConstructor = false;
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std::list<SymbolDatabase::Func>::const_iterator func;
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for (func = info->functionList.begin(); func != info->functionList.end(); ++func)
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{
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if (func->type == SymbolDatabase::Func::Constructor)
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{
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// check for no arguments: func ( )
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/** @todo check for arguments with default values someday */
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if (func->argDef->next() == func->argDef->link())
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{
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hasDefaultConstructor = true;
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break;
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}
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}
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}
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// User defined types with user defined default constructor doesn't need initialization.
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// We assume the default constructor initializes everything.
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// Another check will figure out if the constructor actually initializes everything.
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if (hasDefaultConstructor)
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info->needInitialization = SpaceInfo::False;
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// check each member variable to see if it needs initialization
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else
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{
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bool needInitialization = false;
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bool unknown = false;
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std::list<Var>::const_iterator var;
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for (var = info->varlist.begin(); var != info->varlist.end(); ++var)
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{
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if (var->isClass)
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{
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if (var->type)
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{
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// does this type need initialization?
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if (var->type->needInitialization == SpaceInfo::True)
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needInitialization = true;
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else if (var->type->needInitialization == SpaceInfo::Unknown)
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unknown = true;
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}
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}
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else
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needInitialization = true;
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}
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if (!unknown)
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{
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if (needInitialization)
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info->needInitialization = SpaceInfo::True;
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else
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info->needInitialization = SpaceInfo::False;
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}
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if (info->needInitialization == SpaceInfo::Unknown)
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unknowns++;
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}
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}
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}
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retry++;
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}
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while (unknowns && retry < 100);
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// this shouldn't happen so output a debug warning
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if (retry == 100 && _settings->debugwarnings)
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{
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for (it = spaceInfoList.begin(); it != spaceInfoList.end(); ++it)
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{
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info = *it;
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if (info->isClassOrStruct() && info->needInitialization == SpaceInfo::Unknown)
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{
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std::list<ErrorLogger::ErrorMessage::FileLocation> locationList;
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ErrorLogger::ErrorMessage::FileLocation loc;
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loc.line = info->classDef->linenr();
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loc.setfile(_tokenizer->file(info->classDef));
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locationList.push_back(loc);
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const ErrorLogger::ErrorMessage errmsg(locationList,
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Severity::debug,
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"SymbolDatabase::SymbolDatabase couldn't resolve all user defined types.",
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"debug");
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if (_errorLogger)
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_errorLogger->reportErr(errmsg);
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else
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Check::reportError(errmsg);
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}
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}
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}
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}
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SymbolDatabase::~SymbolDatabase()
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{
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std::list<SpaceInfo *>::iterator it;
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for (it = spaceInfoList.begin(); it != spaceInfoList.end(); ++it)
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delete *it;
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}
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bool SymbolDatabase::isFunction(const Token *tok, const Token **funcStart, const Token **argStart) const
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{
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// function returning function pointer? '... ( ... %var% ( ... ))( ... ) {'
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if (tok->str() == "(" &&
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tok->link()->previous()->str() == ")" &&
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tok->link()->next() &&
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tok->link()->next()->str() == "(" &&
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tok->link()->next()->link()->next() &&
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Token::Match(tok->link()->next()->link()->next(), "{|;|const|="))
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{
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*funcStart = tok->link()->previous()->link()->previous();
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*argStart = tok->link()->previous()->link();
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return true;
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}
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// regular function?
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else if (Token::Match(tok, "%var% (") && Token::Match(tok->next()->link(), ") const| ;|{|=|:"))
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{
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*funcStart = tok;
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*argStart = tok->next();
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return true;
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}
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// simple operator?
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else if (Token::Match(tok, "operator %any% (") && Token::Match(tok->tokAt(2)->link(), ") const| ;|{|=|:"))
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{
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*funcStart = tok->next();
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*argStart = tok->tokAt(2);
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return true;
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}
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// complex operator?
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else if (tok->str() == "operator")
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{
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// operator[] or operator()?
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if ((Token::simpleMatch(tok->next(), "( ) (") || Token::simpleMatch(tok->next(), "[ ] (")) &&
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Token::Match(tok->tokAt(3)->link(), ") const| ;|{|=|:"))
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{
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*funcStart = tok->next();
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*argStart = tok->tokAt(3);
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return true;
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}
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// operator new/delete []?
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else if (Token::Match(tok->next(), "new|delete [ ] (") && Token::Match(tok->tokAt(4)->link(), ") ;|{"))
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{
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*funcStart = tok->next();
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*argStart = tok->tokAt(4);
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return true;
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}
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}
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return false;
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}
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bool SymbolDatabase::argsMatch(const SpaceInfo *info, const Token *first, const Token *second, const std::string &path, unsigned int depth) const
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{
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bool match = false;
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while (first->str() == second->str())
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{
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// at end of argument list
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if (first->str() == ")")
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{
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match = true;
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break;
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}
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// skip default value assignment
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else if (first->next()->str() == "=")
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first = first->tokAt(2);
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// definition missing variable name
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else if (first->next()->str() == "," && second->next()->str() != ",")
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second = second->next();
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else if (first->next()->str() == ")" && second->next()->str() != ")")
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second = second->next();
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// function missing variable name
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else if (second->next()->str() == "," && first->next()->str() != ",")
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first = first->next();
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else if (second->next()->str() == ")" && first->next()->str() != ")")
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first = first->next();
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// argument list has different number of arguments
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else if (second->str() == ")")
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break;
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// variable names are different
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else if ((Token::Match(first->next(), "%var% ,|)|=") &&
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Token::Match(second->next(), "%var% ,|)")) &&
|
|
(first->next()->str() != second->next()->str()))
|
|
{
|
|
// skip variable names
|
|
first = first->next();
|
|
second = second->next();
|
|
|
|
// skip default value assignment
|
|
if (first->next()->str() == "=")
|
|
first = first->tokAt(2);
|
|
}
|
|
|
|
// variable with class path
|
|
else if (depth && Token::Match(first->next(), "%var%"))
|
|
{
|
|
std::string param = path + first->next()->str();
|
|
|
|
if (Token::Match(second->next(), param.c_str()))
|
|
{
|
|
second = second->tokAt(int(depth) * 2);
|
|
}
|
|
else if (depth > 1)
|
|
{
|
|
std::string short_path = path;
|
|
|
|
// remove last " :: "
|
|
short_path.resize(short_path.size() - 4);
|
|
|
|
// remove last name
|
|
while (!short_path.empty() && short_path[short_path.size() - 1] != ' ')
|
|
short_path.resize(short_path.size() - 1);
|
|
|
|
param = short_path + first->next()->str();
|
|
if (Token::Match(second->next(), param.c_str()))
|
|
{
|
|
second = second->tokAt((int(depth) - 1) * 2);
|
|
}
|
|
}
|
|
}
|
|
|
|
// nested class variable
|
|
else if (depth == 0 && Token::Match(first->next(), "%var%") &&
|
|
second->next()->str() == info->className && second->strAt(2) == "::" &&
|
|
first->next()->str() == second->strAt(3))
|
|
{
|
|
second = second->tokAt(2);
|
|
}
|
|
|
|
first = first->next();
|
|
second = second->next();
|
|
}
|
|
|
|
return match;
|
|
}
|
|
|
|
void SymbolDatabase::addFunction(SpaceInfo **info, const Token **tok, const Token *argStart)
|
|
{
|
|
int count = 0;
|
|
bool added = false;
|
|
std::string path;
|
|
unsigned int path_length = 0;
|
|
const Token *tok1;
|
|
|
|
// skip class/struct name
|
|
if ((*tok)->previous()->str() == "~")
|
|
tok1 = (*tok)->tokAt(-3);
|
|
else
|
|
tok1 = (*tok)->tokAt(-2);
|
|
|
|
// back up to head of path
|
|
while (tok1 && tok1->previous() && tok1->previous()->str() == "::")
|
|
{
|
|
path = tok1->str() + " :: " + path;
|
|
tok1 = tok1->tokAt(-2);
|
|
count++;
|
|
path_length++;
|
|
}
|
|
|
|
if (count)
|
|
{
|
|
path = tok1->str() + " :: " + path;
|
|
path_length++;
|
|
}
|
|
|
|
std::list<SpaceInfo *>::iterator it1;
|
|
|
|
// search for match
|
|
for (it1 = spaceInfoList.begin(); it1 != spaceInfoList.end(); ++it1)
|
|
{
|
|
SpaceInfo *info1 = *it1;
|
|
|
|
bool match = false;
|
|
if (info1->className == tok1->str() && (info1->type != SpaceInfo::Function))
|
|
{
|
|
// do the spaces match (same space) or do their names match (multiple namespaces)
|
|
if ((*info == info1->nestedIn) || (*info && info1 &&
|
|
(*info)->className == info1->nestedIn->className &&
|
|
!(*info)->className.empty() &&
|
|
(*info)->type == info1->nestedIn->type))
|
|
{
|
|
SpaceInfo *info2 = info1;
|
|
|
|
while (info2 && count > 0)
|
|
{
|
|
count--;
|
|
tok1 = tok1->tokAt(2);
|
|
info2 = info2->findInNestedList(tok1->str());
|
|
}
|
|
|
|
if (count == 0 && info2)
|
|
{
|
|
match = true;
|
|
info1 = info2;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (match)
|
|
{
|
|
std::list<Func>::iterator func;
|
|
|
|
for (func = info1->functionList.begin(); func != info1->functionList.end(); ++func)
|
|
{
|
|
if (!func->hasBody)
|
|
{
|
|
if (func->isOperator &&
|
|
(*tok)->str() == "operator" &&
|
|
func->tokenDef->str() == (*tok)->strAt(1))
|
|
{
|
|
if (argsMatch(info1, func->tokenDef->tokAt(2), (*tok)->tokAt(3), path, path_length))
|
|
{
|
|
func->hasBody = true;
|
|
func->token = (*tok)->next();
|
|
func->arg = argStart;
|
|
}
|
|
}
|
|
else if (func->type == SymbolDatabase::Func::Destructor &&
|
|
(*tok)->previous()->str() == "~" &&
|
|
func->tokenDef->str() == (*tok)->str())
|
|
{
|
|
if (argsMatch(info1, func->tokenDef->next(), (*tok)->next(), path, path_length))
|
|
{
|
|
func->hasBody = true;
|
|
func->token = *tok;
|
|
func->arg = argStart;
|
|
}
|
|
}
|
|
else if (func->tokenDef->str() == (*tok)->str() && (*tok)->previous()->str() != "~")
|
|
{
|
|
if (argsMatch(info1, func->tokenDef->next(), (*tok)->next(), path, path_length))
|
|
{
|
|
// normal function?
|
|
if (!func->retFuncPtr && (*tok)->next()->link())
|
|
{
|
|
if ((func->isConst && (*tok)->next()->link()->next()->str() == "const") ||
|
|
(!func->isConst && (*tok)->next()->link()->next()->str() != "const"))
|
|
{
|
|
func->hasBody = true;
|
|
func->token = *tok;
|
|
func->arg = argStart;
|
|
}
|
|
}
|
|
|
|
// function returning function pointer?
|
|
else if (func->retFuncPtr)
|
|
{
|
|
// todo check for const
|
|
func->hasBody = true;
|
|
func->token = *tok;
|
|
func->arg = argStart;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (func->hasBody)
|
|
{
|
|
addNewFunction(info, tok);
|
|
(*info)->functionOf = info1;
|
|
added = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// check for class function for unknown class
|
|
if (!added)
|
|
addNewFunction(info, tok);
|
|
}
|
|
|
|
void SymbolDatabase::addNewFunction(SymbolDatabase::SpaceInfo **info, const Token **tok)
|
|
{
|
|
const Token *tok1 = *tok;
|
|
SpaceInfo *new_info = new SpaceInfo(this, tok1, *info);
|
|
|
|
// skip to start of function
|
|
while (tok1 && tok1->str() != "{")
|
|
tok1 = tok1->next();
|
|
|
|
if (tok1)
|
|
{
|
|
new_info->classStart = tok1;
|
|
new_info->classEnd = tok1->link();
|
|
|
|
*info = new_info;
|
|
|
|
// add space
|
|
spaceInfoList.push_back(new_info);
|
|
|
|
*tok = tok1;
|
|
}
|
|
}
|
|
|
|
const Token *SymbolDatabase::initBaseInfo(SpaceInfo *info, const Token *tok)
|
|
{
|
|
// goto initial '{'
|
|
const Token *tok2 = tok->tokAt(2);
|
|
int level = 0;
|
|
while (tok2 && tok2->str() != "{")
|
|
{
|
|
// skip unsupported templates
|
|
if (tok2->str() == "<")
|
|
level++;
|
|
else if (tok2->str() == ">")
|
|
level--;
|
|
|
|
// check for base classes
|
|
else if (level == 0 && Token::Match(tok2, ":|,"))
|
|
{
|
|
BaseInfo base;
|
|
|
|
tok2 = tok2->next();
|
|
|
|
if (tok2->str() == "public")
|
|
{
|
|
base.access = Public;
|
|
tok2 = tok2->next();
|
|
}
|
|
else if (tok2->str() == "protected")
|
|
{
|
|
base.access = Protected;
|
|
tok2 = tok2->next();
|
|
}
|
|
else if (tok2->str() == "private")
|
|
{
|
|
base.access = Private;
|
|
tok2 = tok2->next();
|
|
}
|
|
else
|
|
{
|
|
if (tok->str() == "class")
|
|
base.access = Private;
|
|
else if (tok->str() == "struct")
|
|
base.access = Public;
|
|
}
|
|
|
|
// handle derived base classes
|
|
while (Token::Match(tok2, "%var% ::"))
|
|
{
|
|
base.name += tok2->str();
|
|
base.name += " :: ";
|
|
tok2 = tok2->tokAt(2);
|
|
}
|
|
|
|
base.name += tok2->str();
|
|
base.spaceInfo = 0;
|
|
|
|
// don't add unhandled templates
|
|
if (tok2->next()->str() == "<")
|
|
{
|
|
int level1 = 1;
|
|
while (tok2->next())
|
|
{
|
|
if (tok2->next()->str() == ">")
|
|
{
|
|
level1--;
|
|
if (level == 0)
|
|
break;
|
|
}
|
|
else if (tok2->next()->str() == "<")
|
|
level1++;
|
|
|
|
tok2 = tok2->next();
|
|
}
|
|
}
|
|
|
|
// save pattern for base class name
|
|
else
|
|
{
|
|
info->derivedFrom.push_back(base);
|
|
}
|
|
}
|
|
tok2 = tok2->next();
|
|
}
|
|
|
|
return tok2;
|
|
}
|
|
//---------------------------------------------------------------------------
|
|
|
|
SymbolDatabase::SpaceInfo::SpaceInfo(SymbolDatabase *check_, const Token *classDef_, SymbolDatabase::SpaceInfo *nestedIn_) :
|
|
check(check_),
|
|
classDef(classDef_),
|
|
classStart(NULL),
|
|
classEnd(NULL),
|
|
nestedIn(nestedIn_),
|
|
numConstructors(0),
|
|
needInitialization(SpaceInfo::Unknown),
|
|
functionOf(NULL)
|
|
{
|
|
if (!classDef)
|
|
{
|
|
type = SpaceInfo::Global;
|
|
access = Public;
|
|
}
|
|
else if (classDef->str() == "class")
|
|
{
|
|
type = SpaceInfo::Class;
|
|
className = classDef->next()->str();
|
|
access = Private;
|
|
}
|
|
else if (classDef->str() == "struct")
|
|
{
|
|
type = SpaceInfo::Struct;
|
|
className = classDef->next()->str();
|
|
access = Public;
|
|
}
|
|
else if (classDef->str() == "union")
|
|
{
|
|
type = SpaceInfo::Union;
|
|
className = classDef->next()->str();
|
|
access = Public;
|
|
}
|
|
else if (classDef->str() == "namespace")
|
|
{
|
|
type = SpaceInfo::Namespace;
|
|
className = classDef->next()->str();
|
|
access = Public;
|
|
}
|
|
else
|
|
{
|
|
type = SpaceInfo::Function;
|
|
className = classDef->str();
|
|
access = Public;
|
|
}
|
|
|
|
if (nestedIn)
|
|
nestedIn->nestedList.push_back(this);
|
|
}
|
|
|
|
// Get variable list..
|
|
void SymbolDatabase::SpaceInfo::getVarList()
|
|
{
|
|
AccessControl varaccess = type == Class ? Private : Public;
|
|
const Token *start;
|
|
|
|
if (classStart)
|
|
start = classStart->next();
|
|
else
|
|
start = check->_tokenizer->tokens();
|
|
|
|
for (const Token *tok = start; tok; tok = tok->next())
|
|
{
|
|
if (tok->str() == "}")
|
|
break;
|
|
|
|
// Is it a function?
|
|
else if (tok->str() == "{")
|
|
{
|
|
tok = tok->link();
|
|
continue;
|
|
}
|
|
|
|
// Is it a nested class or structure?
|
|
else if (Token::Match(tok, "class|struct|union|namespace %type% :|{"))
|
|
{
|
|
tok = tok->tokAt(2);
|
|
while (tok && tok->str() != "{")
|
|
tok = tok->next();
|
|
if (tok)
|
|
{
|
|
// skip implementation
|
|
tok = tok->link();
|
|
continue;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
// Borland C++: Skip all variables in the __published section.
|
|
// These are automatically initialized.
|
|
else if (tok->str() == "__published:")
|
|
{
|
|
for (; tok; tok = tok->next())
|
|
{
|
|
if (tok->str() == "{")
|
|
tok = tok->link();
|
|
if (Token::Match(tok->next(), "private:|protected:|public:"))
|
|
break;
|
|
}
|
|
if (tok)
|
|
continue;
|
|
else
|
|
break;
|
|
}
|
|
|
|
// "private:" "public:" "protected:" etc
|
|
else if (tok->str() == "public:")
|
|
{
|
|
varaccess = Public;
|
|
continue;
|
|
}
|
|
else if (tok->str() == "protected:")
|
|
{
|
|
varaccess = Protected;
|
|
continue;
|
|
}
|
|
else if (tok->str() == "private:")
|
|
{
|
|
varaccess = Private;
|
|
continue;
|
|
}
|
|
|
|
// Is it a forward declaration?
|
|
else if (Token::Match(tok, "class|struct|union %var% ;"))
|
|
{
|
|
tok = tok->tokAt(2);
|
|
continue;
|
|
}
|
|
|
|
// Borland C++: Ignore properties..
|
|
else if (tok->str() == "__property")
|
|
continue;
|
|
|
|
// Search for start of statement..
|
|
else if (!tok->previous() || !Token::Match(tok->previous(), ";|{|}|public:|protected:|private:"))
|
|
continue;
|
|
else if (Token::Match(tok, ";|{|}"))
|
|
continue;
|
|
|
|
// This is the start of a statement
|
|
const Token *vartok = NULL;
|
|
const Token *typetok = NULL;
|
|
|
|
// Is it const..?
|
|
bool isConst = false;
|
|
if (tok->str() == "const")
|
|
{
|
|
tok = tok->next();
|
|
isConst = true;
|
|
}
|
|
|
|
// Is it a static variable?
|
|
const bool isStatic(Token::simpleMatch(tok, "static"));
|
|
if (isStatic)
|
|
{
|
|
tok = tok->next();
|
|
}
|
|
|
|
// Is it a mutable variable?
|
|
const bool isMutable(Token::simpleMatch(tok, "mutable"));
|
|
if (isMutable)
|
|
{
|
|
tok = tok->next();
|
|
}
|
|
|
|
// Is it const..?
|
|
if (tok->str() == "const")
|
|
{
|
|
tok = tok->next();
|
|
isConst = true;
|
|
}
|
|
|
|
bool isClass = false;
|
|
|
|
// Is it a variable declaration?
|
|
if (Token::Match(tok, "%type% %var% ;|:"))
|
|
{
|
|
if (!tok->isStandardType())
|
|
{
|
|
isClass = true;
|
|
typetok = tok;
|
|
}
|
|
|
|
vartok = tok->next();
|
|
tok = vartok->next();
|
|
}
|
|
else if (Token::Match(tok, "%type% :: %type% %var% ;"))
|
|
{
|
|
isClass = true;
|
|
vartok = tok->tokAt(3);
|
|
typetok = vartok->previous();
|
|
tok = vartok->next();
|
|
}
|
|
else if (Token::Match(tok, ":: %type% :: %type% %var% ;"))
|
|
{
|
|
isClass = true;
|
|
vartok = tok->tokAt(4);
|
|
typetok = vartok->previous();
|
|
tok = vartok->next();
|
|
}
|
|
else if (Token::Match(tok, "%type% :: %type% :: %type% %var% ;"))
|
|
{
|
|
isClass = true;
|
|
vartok = tok->tokAt(5);
|
|
typetok = vartok->previous();
|
|
tok = vartok->next();
|
|
}
|
|
else if (Token::Match(tok, ":: %type% :: %type% :: %type% %var% ;"))
|
|
{
|
|
isClass = true;
|
|
vartok = tok->tokAt(6);
|
|
typetok = vartok->previous();
|
|
tok = vartok->next();
|
|
}
|
|
|
|
// Structure?
|
|
else if (Token::Match(tok, "struct|union %type% %var% ;"))
|
|
{
|
|
isClass = true;
|
|
vartok = tok->tokAt(2);
|
|
typetok = vartok->previous();
|
|
tok = vartok->next();
|
|
}
|
|
|
|
// Pointer?
|
|
else if (Token::Match(tok, "%type% * %var% ;"))
|
|
{
|
|
vartok = tok->tokAt(2);
|
|
typetok = tok;
|
|
tok = vartok->next();
|
|
}
|
|
else if (Token::Match(tok, "%type% %type% * %var% ;"))
|
|
{
|
|
vartok = tok->tokAt(3);
|
|
typetok = vartok->tokAt(-2);
|
|
tok = vartok->next();
|
|
}
|
|
else if (Token::Match(tok, "%type% :: %type% * %var% ;"))
|
|
{
|
|
vartok = tok->tokAt(4);
|
|
typetok = vartok->tokAt(-2);
|
|
tok = vartok->next();
|
|
}
|
|
else if (Token::Match(tok, "%type% :: %type% :: %type% * %var% ;"))
|
|
{
|
|
vartok = tok->tokAt(6);
|
|
typetok = vartok->tokAt(-2);
|
|
tok = vartok->next();
|
|
}
|
|
|
|
// Array?
|
|
else if (Token::Match(tok, "%type% %var% [") && tok->next()->str() != "operator")
|
|
{
|
|
if (!tok->isStandardType())
|
|
{
|
|
isClass = true;
|
|
typetok = tok;
|
|
}
|
|
|
|
vartok = tok->next();
|
|
tok = vartok->next()->link()->next();
|
|
}
|
|
|
|
// Pointer array?
|
|
else if (Token::Match(tok, "%type% * %var% ["))
|
|
{
|
|
vartok = tok->tokAt(2);
|
|
tok = vartok->next();
|
|
}
|
|
else if (Token::Match(tok, "%type% :: %type% * %var% ["))
|
|
{
|
|
vartok = tok->tokAt(4);
|
|
tok = vartok->next();
|
|
}
|
|
else if (Token::Match(tok, "%type% :: %type% :: %type% * %var% ["))
|
|
{
|
|
vartok = tok->tokAt(6);
|
|
tok = vartok->next();
|
|
}
|
|
|
|
// Container..
|
|
else if (Token::Match(tok, ":: %type% :: %type% :: %type% <") ||
|
|
Token::Match(tok, "%type% :: %type% :: %type% <") ||
|
|
Token::Match(tok, ":: %type% :: %type% <") ||
|
|
Token::Match(tok, "%type% :: %type% <") ||
|
|
Token::Match(tok, ":: %type% <") ||
|
|
Token::Match(tok, "%type% <"))
|
|
{
|
|
// got an unhandled template?
|
|
if (tok->str() == "template")
|
|
continue;
|
|
|
|
// find matching ">"
|
|
int level = 0;
|
|
const Token *tok1 = NULL;
|
|
for (; tok; tok = tok->next())
|
|
{
|
|
if (tok->str() == "<")
|
|
{
|
|
if (level == 0)
|
|
tok1 = tok->previous();
|
|
level++;
|
|
}
|
|
else if (tok->str() == ">")
|
|
{
|
|
level--;
|
|
if (level == 0)
|
|
break;
|
|
}
|
|
else if (tok->str() == ">>")
|
|
{
|
|
level-=2;
|
|
if (level <= 0)
|
|
break;
|
|
}
|
|
else if (tok->str() == "(")
|
|
tok = tok->link();
|
|
|
|
// don't crash on unhandled templates
|
|
if (tok->next() == NULL)
|
|
break;
|
|
}
|
|
if (tok && (Token::Match(tok, "> %var% ;") || Token::Match(tok, ">> %var% ;")))
|
|
{
|
|
isClass = true;
|
|
vartok = tok->next();
|
|
typetok = tok1;
|
|
tok = vartok->next();
|
|
}
|
|
else if (tok && (Token::Match(tok, "> :: %type% %var% ;") || Token::Match(tok, ">> :: %type% %var% ;")))
|
|
{
|
|
isClass = true;
|
|
vartok = tok->tokAt(3);
|
|
typetok = vartok->previous();
|
|
tok = vartok->next();
|
|
}
|
|
else if (tok && (Token::Match(tok, "> * %var% ;") || Token::Match(tok, ">> * %var% ;")))
|
|
{
|
|
vartok = tok->tokAt(2);
|
|
tok = vartok->next();
|
|
}
|
|
}
|
|
|
|
// If the vartok was set in the if-blocks above, create a entry for this variable..
|
|
if (vartok && vartok->str() != "operator")
|
|
{
|
|
if (vartok->varId() == 0 && check->_settings->debugwarnings)
|
|
{
|
|
std::list<ErrorLogger::ErrorMessage::FileLocation> locationList;
|
|
ErrorLogger::ErrorMessage::FileLocation loc;
|
|
loc.line = vartok->linenr();
|
|
loc.setfile(check->_tokenizer->file(vartok));
|
|
locationList.push_back(loc);
|
|
|
|
const ErrorLogger::ErrorMessage errmsg(locationList,
|
|
Severity::debug,
|
|
"SymbolDatabase::SpaceInfo::getVarList found variable \'" + vartok->str() + "\' with varid 0.",
|
|
"debug");
|
|
if (check->_errorLogger)
|
|
check->_errorLogger->reportErr(errmsg);
|
|
else
|
|
Check::reportError(errmsg);
|
|
}
|
|
|
|
const SpaceInfo *spaceInfo = NULL;
|
|
|
|
if (typetok)
|
|
spaceInfo = check->findVarType(this, typetok);
|
|
|
|
addVar(vartok, varaccess, isMutable, isStatic, isConst, isClass, spaceInfo);
|
|
}
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
|
|
const SymbolDatabase::SpaceInfo *SymbolDatabase::findVarType(const SpaceInfo *start, const Token *type) const
|
|
{
|
|
std::list<SpaceInfo *>::const_iterator it;
|
|
|
|
for (it = spaceInfoList.begin(); it != spaceInfoList.end(); ++it)
|
|
{
|
|
const SpaceInfo *info = *it;
|
|
|
|
// skip namespaces and functions
|
|
if (info->type == SpaceInfo::Namespace || info->type == SpaceInfo::Function || info->type == SpaceInfo::Global)
|
|
continue;
|
|
|
|
// do the names match?
|
|
if (info->className == type->str())
|
|
{
|
|
// check if type does not have a namespace
|
|
if (type->previous()->str() != "::")
|
|
{
|
|
const SpaceInfo *parent = start;
|
|
|
|
// check if in same namespace
|
|
while (parent && parent != info->nestedIn)
|
|
parent = parent->nestedIn;
|
|
|
|
if (info->nestedIn == parent)
|
|
return info;
|
|
}
|
|
|
|
// type has a namespace
|
|
else
|
|
{
|
|
// FIXME check if namespace path matches supplied path
|
|
return info;
|
|
}
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
|
|
SymbolDatabase::SpaceInfo * SymbolDatabase::SpaceInfo::findInNestedList(const std::string & name)
|
|
{
|
|
std::list<SpaceInfo *>::iterator it;
|
|
|
|
for (it = nestedList.begin(); it != nestedList.end(); ++it)
|
|
{
|
|
if ((*it)->className == name)
|
|
return (*it);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
|
|
const SymbolDatabase::Func *SymbolDatabase::SpaceInfo::getDestructor() const
|
|
{
|
|
std::list<Func>::const_iterator it;
|
|
for (it = functionList.begin(); it != functionList.end(); ++it)
|
|
{
|
|
if (it->type == Func::Destructor)
|
|
return &*it;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
|
|
unsigned int SymbolDatabase::SpaceInfo::getNestedNonFunctions() const
|
|
{
|
|
unsigned int nested = 0;
|
|
std::list<SpaceInfo *>::const_iterator ni;
|
|
for (ni = nestedList.begin(); ni != nestedList.end(); ++ni)
|
|
{
|
|
if ((*ni)->type != SpaceInfo::Function)
|
|
nested++;
|
|
}
|
|
return nested;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
|
|
void SymbolDatabase::SpaceInfo::assignVar(const std::string &varname)
|
|
{
|
|
std::list<Var>::iterator i;
|
|
|
|
for (i = varlist.begin(); i != varlist.end(); ++i)
|
|
{
|
|
if (i->token->str() == varname)
|
|
{
|
|
i->assign = true;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SymbolDatabase::SpaceInfo::initVar(const std::string &varname)
|
|
{
|
|
std::list<Var>::iterator i;
|
|
|
|
for (i = varlist.begin(); i != varlist.end(); ++i)
|
|
{
|
|
if (i->token->str() == varname)
|
|
{
|
|
i->init = true;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SymbolDatabase::SpaceInfo::assignAllVar()
|
|
{
|
|
std::list<Var>::iterator i;
|
|
|
|
for (i = varlist.begin(); i != varlist.end(); ++i)
|
|
i->assign = true;
|
|
}
|
|
|
|
void SymbolDatabase::SpaceInfo::clearAllVar()
|
|
{
|
|
std::list<Var>::iterator i;
|
|
|
|
for (i = varlist.begin(); i != varlist.end(); ++i)
|
|
{
|
|
i->assign = false;
|
|
i->init = false;
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
|
|
bool SymbolDatabase::SpaceInfo::isBaseClassFunc(const Token *tok)
|
|
{
|
|
// Iterate through each base class...
|
|
for (unsigned int i = 0; i < derivedFrom.size(); ++i)
|
|
{
|
|
const SpaceInfo *info = derivedFrom[i].spaceInfo;
|
|
|
|
// Check if base class exists in database
|
|
if (info)
|
|
{
|
|
std::list<Func>::const_iterator it;
|
|
|
|
for (it = info->functionList.begin(); it != info->functionList.end(); ++it)
|
|
{
|
|
if (it->tokenDef->str() == tok->str())
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// Base class not found so assume it is in it.
|
|
else
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void SymbolDatabase::SpaceInfo::initializeVarList(const Func &func, std::list<std::string> &callstack)
|
|
{
|
|
bool Assign = false;
|
|
unsigned int indentlevel = 0;
|
|
const Token *ftok = func.token;
|
|
|
|
for (; ftok; ftok = ftok->next())
|
|
{
|
|
if (!ftok->next())
|
|
break;
|
|
|
|
// Class constructor.. initializing variables like this
|
|
// clKalle::clKalle() : var(value) { }
|
|
if (indentlevel == 0)
|
|
{
|
|
if (Assign && Token::Match(ftok, "%var% ("))
|
|
{
|
|
initVar(ftok->str());
|
|
|
|
// assignment in the initializer..
|
|
// : var(value = x)
|
|
if (Token::Match(ftok->tokAt(2), "%var% ="))
|
|
assignVar(ftok->strAt(2));
|
|
}
|
|
|
|
Assign |= (ftok->str() == ":");
|
|
}
|
|
|
|
|
|
if (ftok->str() == "{")
|
|
{
|
|
++indentlevel;
|
|
Assign = false;
|
|
}
|
|
|
|
else if (ftok->str() == "}")
|
|
{
|
|
if (indentlevel <= 1)
|
|
break;
|
|
--indentlevel;
|
|
}
|
|
|
|
if (indentlevel < 1)
|
|
continue;
|
|
|
|
// Variable getting value from stream?
|
|
if (Token::Match(ftok, ">> %var%"))
|
|
{
|
|
assignVar(ftok->strAt(1));
|
|
}
|
|
|
|
// Before a new statement there is "[{};)=]"
|
|
if (! Token::Match(ftok, "[{};()=]"))
|
|
continue;
|
|
|
|
if (Token::simpleMatch(ftok, "( !"))
|
|
ftok = ftok->next();
|
|
|
|
// Using the operator= function to initialize all variables..
|
|
if (Token::simpleMatch(ftok->next(), "* this = "))
|
|
{
|
|
assignAllVar();
|
|
break;
|
|
}
|
|
|
|
// Calling member variable function?
|
|
if (Token::Match(ftok->next(), "%var% . %var% ("))
|
|
{
|
|
std::list<Var>::const_iterator var;
|
|
for (var = varlist.begin(); var != varlist.end(); ++var)
|
|
{
|
|
if (var->token->varId() == ftok->next()->varId())
|
|
{
|
|
/** @todo false negative: we assume function changes variable state */
|
|
assignVar(ftok->next()->str());
|
|
continue;
|
|
}
|
|
}
|
|
|
|
ftok = ftok->tokAt(2);
|
|
}
|
|
|
|
if (!Token::Match(ftok->next(), "%var%") &&
|
|
!Token::Match(ftok->next(), "this . %var%") &&
|
|
!Token::Match(ftok->next(), "* %var% =") &&
|
|
!Token::Match(ftok->next(), "( * this ) . %var%"))
|
|
continue;
|
|
|
|
// Goto the first token in this statement..
|
|
ftok = ftok->next();
|
|
|
|
// Skip "( * this )"
|
|
if (Token::simpleMatch(ftok, "( * this ) ."))
|
|
{
|
|
ftok = ftok->tokAt(5);
|
|
}
|
|
|
|
// Skip "this->"
|
|
if (Token::simpleMatch(ftok, "this ."))
|
|
ftok = ftok->tokAt(2);
|
|
|
|
// Skip "classname :: "
|
|
if (Token::Match(ftok, "%var% ::"))
|
|
ftok = ftok->tokAt(2);
|
|
|
|
// Clearing all variables..
|
|
if (Token::simpleMatch(ftok, "memset ( this ,"))
|
|
{
|
|
assignAllVar();
|
|
return;
|
|
}
|
|
|
|
// Clearing array..
|
|
else if (Token::Match(ftok, "memset ( %var% ,"))
|
|
{
|
|
assignVar(ftok->strAt(2));
|
|
ftok = ftok->next()->link();
|
|
continue;
|
|
}
|
|
|
|
// Calling member function?
|
|
else if (Token::Match(ftok, "%var% (") && ftok->str() != "if")
|
|
{
|
|
// Passing "this" => assume that everything is initialized
|
|
for (const Token *tok2 = ftok->next()->link(); tok2 && tok2 != ftok; tok2 = tok2->previous())
|
|
{
|
|
if (tok2->str() == "this")
|
|
{
|
|
assignAllVar();
|
|
return;
|
|
}
|
|
}
|
|
|
|
// recursive call / calling overloaded function
|
|
// assume that all variables are initialized
|
|
if (std::find(callstack.begin(), callstack.end(), ftok->str()) != callstack.end())
|
|
{
|
|
assignAllVar();
|
|
return;
|
|
}
|
|
|
|
// check if member function
|
|
std::list<Func>::const_iterator it;
|
|
for (it = functionList.begin(); it != functionList.end(); ++it)
|
|
{
|
|
if (ftok->str() == it->tokenDef->str() && it->type != Func::Constructor)
|
|
break;
|
|
}
|
|
|
|
// member function found
|
|
if (it != functionList.end())
|
|
{
|
|
// member function has implementation
|
|
if (it->hasBody)
|
|
{
|
|
// initialize variable use list using member function
|
|
callstack.push_back(ftok->str());
|
|
initializeVarList(*it, callstack);
|
|
callstack.pop_back();
|
|
}
|
|
|
|
// there is a called member function, but it has no implementation, so we assume it initializes everything
|
|
else
|
|
{
|
|
assignAllVar();
|
|
}
|
|
}
|
|
|
|
// not member function
|
|
else
|
|
{
|
|
// could be a base class virtual function, so we assume it initializes everything
|
|
if (func.type != Func::Constructor && isBaseClassFunc(ftok))
|
|
{
|
|
/** @todo False Negative: we should look at the base class functions to see if they
|
|
* call any derived class virtual functions that change the derived class state
|
|
*/
|
|
assignAllVar();
|
|
}
|
|
|
|
// has friends, so we assume it initializes everything
|
|
if (!friendList.empty())
|
|
assignAllVar();
|
|
|
|
// the function is external and it's neither friend nor inherited virtual function.
|
|
// assume all variables that are passed to it are initialized..
|
|
else
|
|
{
|
|
unsigned int indentlevel2 = 0;
|
|
for (const Token *tok = ftok->tokAt(2); tok; tok = tok->next())
|
|
{
|
|
if (tok->str() == "(")
|
|
++indentlevel2;
|
|
else if (tok->str() == ")")
|
|
{
|
|
if (indentlevel2 == 0)
|
|
break;
|
|
--indentlevel2;
|
|
}
|
|
if (tok->isName())
|
|
{
|
|
assignVar(tok->str());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Assignment of member variable?
|
|
else if (Token::Match(ftok, "%var% ="))
|
|
{
|
|
assignVar(ftok->str());
|
|
}
|
|
|
|
// Assignment of array item of member variable?
|
|
else if (Token::Match(ftok, "%var% [ %any% ] ="))
|
|
{
|
|
assignVar(ftok->str());
|
|
}
|
|
|
|
// Assignment of member of array item of member variable?
|
|
else if (Token::Match(ftok, "%var% [ %any% ] . %var% =") ||
|
|
Token::Match(ftok, "%var% [ %any% ] . %var% . %var% ="))
|
|
{
|
|
assignVar(ftok->str());
|
|
}
|
|
|
|
// Assignment of array item of member variable?
|
|
else if (Token::Match(ftok, "%var% [ %any% ] [ %any% ] ="))
|
|
{
|
|
assignVar(ftok->str());
|
|
}
|
|
|
|
// Assignment of array item of member variable?
|
|
else if (Token::Match(ftok, "* %var% ="))
|
|
{
|
|
assignVar(ftok->next()->str());
|
|
}
|
|
|
|
// Assignment of struct member of member variable?
|
|
else if (Token::Match(ftok, "%var% . %any% ="))
|
|
{
|
|
assignVar(ftok->str());
|
|
}
|
|
|
|
// The functions 'clear' and 'Clear' are supposed to initialize variable.
|
|
if (Token::Match(ftok, "%var% . clear|Clear ("))
|
|
{
|
|
assignVar(ftok->str());
|
|
}
|
|
}
|
|
}
|
|
|
|
bool SymbolDatabase::isMemberVar(const SymbolDatabase::SpaceInfo *info, const Token *tok)
|
|
{
|
|
const Token *tok1 = tok;
|
|
|
|
while (tok->previous() && !Token::Match(tok->previous(), "}|{|;|public:|protected:|private:|return|:|?"))
|
|
{
|
|
if (Token::Match(tok->previous(), "* this"))
|
|
return true;
|
|
|
|
tok = tok->previous();
|
|
}
|
|
|
|
if (tok->str() == "this")
|
|
return true;
|
|
|
|
if (Token::Match(tok, "( * %var% ) [") || (Token::Match(tok, "( * %var% ) <<") && tok1->next()->str() == "<<"))
|
|
tok = tok->tokAt(2);
|
|
|
|
// ignore class namespace
|
|
if (tok->str() == info->className && tok->next()->str() == "::")
|
|
tok = tok->tokAt(2);
|
|
|
|
std::list<Var>::const_iterator var;
|
|
for (var = info->varlist.begin(); var != info->varlist.end(); ++var)
|
|
{
|
|
if (var->token->str() == tok->str())
|
|
{
|
|
return !var->isMutable;
|
|
}
|
|
}
|
|
|
|
// not found in this class
|
|
if (!info->derivedFrom.empty())
|
|
{
|
|
// check each base class
|
|
for (unsigned int i = 0; i < info->derivedFrom.size(); ++i)
|
|
{
|
|
// find the base class
|
|
const SpaceInfo *spaceInfo = info->derivedFrom[i].spaceInfo;
|
|
|
|
// find the function in the base class
|
|
if (spaceInfo)
|
|
{
|
|
if (isMemberVar(spaceInfo, tok))
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool SymbolDatabase::isConstMemberFunc(const SymbolDatabase::SpaceInfo *info, const Token *tok)
|
|
{
|
|
std::list<Func>::const_iterator func;
|
|
|
|
for (func = info->functionList.begin(); func != info->functionList.end(); ++func)
|
|
{
|
|
if (func->tokenDef->str() == tok->str() && func->isConst)
|
|
return true;
|
|
}
|
|
|
|
// not found in this class
|
|
if (!info->derivedFrom.empty())
|
|
{
|
|
// check each base class
|
|
for (unsigned int i = 0; i < info->derivedFrom.size(); ++i)
|
|
{
|
|
// find the base class
|
|
const SymbolDatabase::SpaceInfo *spaceInfo = info->derivedFrom[i].spaceInfo;
|
|
|
|
// find the function in the base class
|
|
if (spaceInfo)
|
|
{
|
|
if (isConstMemberFunc(spaceInfo, tok))
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool SymbolDatabase::checkConstFunc(const SymbolDatabase::SpaceInfo *info, const Token *tok)
|
|
{
|
|
// if the function doesn't have any assignment nor function call,
|
|
// it can be a const function..
|
|
unsigned int indentlevel = 0;
|
|
bool isconst = true;
|
|
for (const Token *tok1 = tok; tok1; tok1 = tok1->next())
|
|
{
|
|
if (tok1->str() == "{")
|
|
++indentlevel;
|
|
else if (tok1->str() == "}")
|
|
{
|
|
if (indentlevel <= 1)
|
|
break;
|
|
--indentlevel;
|
|
}
|
|
|
|
// assignment.. = += |= ..
|
|
else if (tok1->str() == "=" ||
|
|
(tok1->str().find("=") == 1 &&
|
|
tok1->str().find_first_of("<!>") == std::string::npos))
|
|
{
|
|
if (tok1->previous()->varId() == 0 && !info->derivedFrom.empty())
|
|
{
|
|
isconst = false;
|
|
break;
|
|
}
|
|
else if (isMemberVar(info, tok1->previous()))
|
|
{
|
|
isconst = false;
|
|
break;
|
|
}
|
|
else if (tok1->previous()->str() == "]")
|
|
{
|
|
// TODO: I assume that the assigned variable is a member variable
|
|
// don't assume it
|
|
isconst = false;
|
|
break;
|
|
}
|
|
else if (tok1->next()->str() == "this")
|
|
{
|
|
isconst = false;
|
|
break;
|
|
}
|
|
|
|
// FIXME: I assume that a member union/struct variable is assigned.
|
|
else if (Token::Match(tok1->tokAt(-2), ". %var%"))
|
|
{
|
|
isconst = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// streaming: <<
|
|
else if (tok1->str() == "<<" && isMemberVar(info, tok1->previous()))
|
|
{
|
|
isconst = false;
|
|
break;
|
|
}
|
|
|
|
// increment/decrement (member variable?)..
|
|
else if (Token::Match(tok1, "++|--"))
|
|
{
|
|
isconst = false;
|
|
break;
|
|
}
|
|
|
|
// function call..
|
|
else if (Token::Match(tok1, "%var% (") &&
|
|
!(Token::Match(tok1, "return|c_str|if|string") || tok1->isStandardType()))
|
|
{
|
|
if (!isConstMemberFunc(info, tok1))
|
|
{
|
|
isconst = false;
|
|
break;
|
|
}
|
|
}
|
|
else if (Token::Match(tok1, "%var% < %any% > ("))
|
|
{
|
|
isconst = false;
|
|
break;
|
|
}
|
|
|
|
// delete..
|
|
else if (tok1->str() == "delete")
|
|
{
|
|
isconst = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return isconst;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
|
|
// check if this function is defined virtual in the base classes
|
|
bool SymbolDatabase::isVirtualFunc(const SymbolDatabase::SpaceInfo *info, const Token *functionToken) const
|
|
{
|
|
// check each base class
|
|
for (unsigned int i = 0; i < info->derivedFrom.size(); ++i)
|
|
{
|
|
// check if base class exists in database
|
|
if (info->derivedFrom[i].spaceInfo)
|
|
{
|
|
const SymbolDatabase::SpaceInfo *derivedFrom = info->derivedFrom[i].spaceInfo;
|
|
|
|
std::list<SymbolDatabase::Func>::const_iterator func;
|
|
|
|
// check if function defined in base class
|
|
for (func = derivedFrom->functionList.begin(); func != derivedFrom->functionList.end(); ++func)
|
|
{
|
|
if (func->isVirtual)
|
|
{
|
|
const Token *tok = func->tokenDef;
|
|
|
|
if (tok->str() == functionToken->str())
|
|
{
|
|
const Token *temp1 = tok->previous();
|
|
const Token *temp2 = functionToken->previous();
|
|
bool returnMatch = true;
|
|
|
|
// check for matching return parameters
|
|
while (temp1->str() != "virtual")
|
|
{
|
|
if (temp1->str() != temp2->str())
|
|
{
|
|
returnMatch = false;
|
|
break;
|
|
}
|
|
|
|
temp1 = temp1->previous();
|
|
temp2 = temp2->previous();
|
|
}
|
|
|
|
// check for matching function parameters
|
|
if (returnMatch && argsMatch(info, tok->tokAt(2), functionToken->tokAt(2), std::string(""), 0))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!derivedFrom->derivedFrom.empty())
|
|
{
|
|
if (isVirtualFunc(derivedFrom, functionToken))
|
|
return true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// unable to find base class so assume it has a virtual function
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|