1192 lines
49 KiB
C++
1192 lines
49 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2018 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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#include "library.h"
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#include "astutils.h"
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#include "mathlib.h"
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#include "path.h"
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#include "symboldatabase.h"
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#include "tinyxml2.h"
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#include "token.h"
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#include "tokenlist.h"
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#include "utils.h"
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#include <cctype>
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#include <cstdlib>
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#include <cstring>
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#include <list>
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static std::vector<std::string> getnames(const char *names)
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{
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std::vector<std::string> ret;
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while (const char *p = std::strchr(names,',')) {
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ret.emplace_back(names, p-names);
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names = p + 1;
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}
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ret.push_back(names);
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return ret;
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}
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Library::Library() : mAllocId(0)
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{
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}
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Library::Error Library::load(const char exename[], const char path[])
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{
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if (std::strchr(path,',') != nullptr) {
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std::string p(path);
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for (;;) {
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const std::string::size_type pos = p.find(',');
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if (pos == std::string::npos)
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break;
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const Error &e = load(exename, p.substr(0,pos).c_str());
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if (e.errorcode != OK)
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return e;
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p = p.substr(pos+1);
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}
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if (!p.empty())
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return load(exename, p.c_str());
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return Error();
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}
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std::string absolute_path;
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// open file..
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tinyxml2::XMLDocument doc;
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tinyxml2::XMLError error = doc.LoadFile(path);
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if (error == tinyxml2::XML_ERROR_FILE_NOT_FOUND) {
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// failed to open file.. is there no extension?
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std::string fullfilename(path);
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if (Path::getFilenameExtension(fullfilename).empty()) {
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fullfilename += ".cfg";
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error = doc.LoadFile(fullfilename.c_str());
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if (error != tinyxml2::XML_ERROR_FILE_NOT_FOUND)
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absolute_path = Path::getAbsoluteFilePath(fullfilename);
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}
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std::list<std::string> cfgfolders;
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#ifdef CFGDIR
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cfgfolders.push_back(CFGDIR);
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#endif
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if (exename) {
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const std::string exepath(Path::fromNativeSeparators(Path::getPathFromFilename(exename)));
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cfgfolders.push_back(exepath + "cfg");
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cfgfolders.push_back(exepath);
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}
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while (error == tinyxml2::XML_ERROR_FILE_NOT_FOUND && !cfgfolders.empty()) {
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const std::string cfgfolder(cfgfolders.front());
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cfgfolders.pop_front();
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const char *sep = (!cfgfolder.empty() && endsWith(cfgfolder,'/') ? "" : "/");
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const std::string filename(cfgfolder + sep + fullfilename);
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error = doc.LoadFile(filename.c_str());
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if (error != tinyxml2::XML_ERROR_FILE_NOT_FOUND)
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absolute_path = Path::getAbsoluteFilePath(filename);
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}
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} else
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absolute_path = Path::getAbsoluteFilePath(path);
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if (error == tinyxml2::XML_SUCCESS) {
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if (mFiles.find(absolute_path) == mFiles.end()) {
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Error err = load(doc);
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if (err.errorcode == OK)
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mFiles.insert(absolute_path);
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return err;
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}
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return Error(OK); // ignore duplicates
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}
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return Error(error == tinyxml2::XML_ERROR_FILE_NOT_FOUND ? FILE_NOT_FOUND : BAD_XML);
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}
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bool Library::loadxmldata(const char xmldata[], std::size_t len)
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{
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tinyxml2::XMLDocument doc;
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return (tinyxml2::XML_SUCCESS == doc.Parse(xmldata, len)) && (load(doc).errorcode == OK);
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}
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Library::Error Library::load(const tinyxml2::XMLDocument &doc)
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{
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const tinyxml2::XMLElement * const rootnode = doc.FirstChildElement();
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if (rootnode == nullptr)
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return Error(BAD_XML);
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if (strcmp(rootnode->Name(),"def") != 0)
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return Error(UNSUPPORTED_FORMAT, rootnode->Name());
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const char* format_string = rootnode->Attribute("format");
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int format = 1; // Assume format version 1 if nothing else is specified (very old .cfg files had no 'format' attribute)
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if (format_string)
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format = atoi(format_string);
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if (format > 2 || format <= 0)
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return Error(UNSUPPORTED_FORMAT);
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std::set<std::string> unknown_elements;
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for (const tinyxml2::XMLElement *node = rootnode->FirstChildElement(); node; node = node->NextSiblingElement()) {
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const std::string nodename = node->Name();
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if (nodename == "memory" || nodename == "resource") {
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// get allocationId to use..
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int allocationId = 0;
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for (const tinyxml2::XMLElement *memorynode = node->FirstChildElement(); memorynode; memorynode = memorynode->NextSiblingElement()) {
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if (strcmp(memorynode->Name(),"dealloc")==0) {
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const std::map<std::string, AllocFunc>::const_iterator it = mDealloc.find(memorynode->GetText());
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if (it != mDealloc.end()) {
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allocationId = it->second.groupId;
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break;
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}
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}
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}
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if (allocationId == 0) {
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if (nodename == "memory")
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while (!ismemory(++mAllocId));
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else
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while (!isresource(++mAllocId));
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allocationId = mAllocId;
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}
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// add alloc/dealloc/use functions..
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for (const tinyxml2::XMLElement *memorynode = node->FirstChildElement(); memorynode; memorynode = memorynode->NextSiblingElement()) {
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const std::string memorynodename = memorynode->Name();
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if (memorynodename == "alloc") {
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AllocFunc temp;
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temp.groupId = allocationId;
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if (memorynode->Attribute("init", "false"))
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returnuninitdata.insert(memorynode->GetText());
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const char *arg = memorynode->Attribute("arg");
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if (arg)
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temp.arg = atoi(arg);
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else
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temp.arg = -1;
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mAlloc[memorynode->GetText()] = temp;
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} else if (memorynodename == "dealloc") {
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AllocFunc temp;
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temp.groupId = allocationId;
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const char *arg = memorynode->Attribute("arg");
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if (arg)
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temp.arg = atoi(arg);
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else
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temp.arg = 1;
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mDealloc[memorynode->GetText()] = temp;
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} else if (memorynodename == "use")
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functions[memorynode->GetText()].use = true;
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else
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unknown_elements.insert(memorynodename);
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}
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}
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else if (nodename == "define") {
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const char *name = node->Attribute("name");
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if (name == nullptr)
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return Error(MISSING_ATTRIBUTE, "name");
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const char *value = node->Attribute("value");
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if (value == nullptr)
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return Error(MISSING_ATTRIBUTE, "value");
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defines.push_back(std::string("#define ") +
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name +
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" " +
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value +
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"\n");
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}
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else if (nodename == "function") {
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const char *name = node->Attribute("name");
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if (name == nullptr)
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return Error(MISSING_ATTRIBUTE, "name");
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for (const std::string &s : getnames(name)) {
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const Error &err = loadFunction(node, s, unknown_elements);
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if (err.errorcode != ErrorCode::OK)
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return err;
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}
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}
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else if (nodename == "reflection") {
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for (const tinyxml2::XMLElement *reflectionnode = node->FirstChildElement(); reflectionnode; reflectionnode = reflectionnode->NextSiblingElement()) {
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if (strcmp(reflectionnode->Name(), "call") != 0) {
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unknown_elements.insert(reflectionnode->Name());
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continue;
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}
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const char * const argString = reflectionnode->Attribute("arg");
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if (!argString)
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return Error(MISSING_ATTRIBUTE, "arg");
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mReflection[reflectionnode->GetText()] = atoi(argString);
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}
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}
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else if (nodename == "markup") {
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const char * const extension = node->Attribute("ext");
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if (!extension)
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return Error(MISSING_ATTRIBUTE, "ext");
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mMarkupExtensions.insert(extension);
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mReportErrors[extension] = (node->Attribute("reporterrors", "true") != nullptr);
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mProcessAfterCode[extension] = (node->Attribute("aftercode", "true") != nullptr);
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for (const tinyxml2::XMLElement *markupnode = node->FirstChildElement(); markupnode; markupnode = markupnode->NextSiblingElement()) {
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const std::string markupnodename = markupnode->Name();
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if (markupnodename == "keywords") {
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for (const tinyxml2::XMLElement *librarynode = markupnode->FirstChildElement(); librarynode; librarynode = librarynode->NextSiblingElement()) {
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if (strcmp(librarynode->Name(), "keyword") == 0) {
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const char* nodeName = librarynode->Attribute("name");
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if (nodeName == nullptr)
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return Error(MISSING_ATTRIBUTE, "name");
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mKeywords[extension].insert(nodeName);
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} else
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unknown_elements.insert(librarynode->Name());
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}
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}
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else if (markupnodename == "exported") {
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for (const tinyxml2::XMLElement *exporter = markupnode->FirstChildElement(); exporter; exporter = exporter->NextSiblingElement()) {
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if (strcmp(exporter->Name(), "exporter") != 0) {
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unknown_elements.insert(exporter->Name());
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continue;
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}
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const char * const prefix = exporter->Attribute("prefix");
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if (!prefix)
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return Error(MISSING_ATTRIBUTE, "prefix");
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for (const tinyxml2::XMLElement *e = exporter->FirstChildElement(); e; e = e->NextSiblingElement()) {
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const std::string ename = e->Name();
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if (ename == "prefix")
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mExporters[prefix].addPrefix(e->GetText());
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else if (ename == "suffix")
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mExporters[prefix].addSuffix(e->GetText());
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else
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unknown_elements.insert(ename);
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}
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}
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}
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else if (markupnodename == "imported") {
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for (const tinyxml2::XMLElement *librarynode = markupnode->FirstChildElement(); librarynode; librarynode = librarynode->NextSiblingElement()) {
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if (strcmp(librarynode->Name(), "importer") == 0)
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mImporters[extension].insert(librarynode->GetText());
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else
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unknown_elements.insert(librarynode->Name());
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}
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}
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else if (markupnodename == "codeblocks") {
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for (const tinyxml2::XMLElement *blocknode = markupnode->FirstChildElement(); blocknode; blocknode = blocknode->NextSiblingElement()) {
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const std::string blocknodename = blocknode->Name();
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if (blocknodename == "block") {
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const char * blockName = blocknode->Attribute("name");
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if (blockName)
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mExecutableBlocks[extension].addBlock(blockName);
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} else if (blocknodename == "structure") {
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const char * start = blocknode->Attribute("start");
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if (start)
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mExecutableBlocks[extension].setStart(start);
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const char * end = blocknode->Attribute("end");
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if (end)
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mExecutableBlocks[extension].setEnd(end);
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const char * offset = blocknode->Attribute("offset");
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if (offset)
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mExecutableBlocks[extension].setOffset(atoi(offset));
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}
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else
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unknown_elements.insert(blocknodename);
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}
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}
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else
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unknown_elements.insert(markupnodename);
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}
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}
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else if (nodename == "container") {
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const char* const id = node->Attribute("id");
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if (!id)
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return Error(MISSING_ATTRIBUTE, "id");
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Container& container = containers[id];
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const char* const inherits = node->Attribute("inherits");
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if (inherits) {
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const std::map<std::string, Container>::const_iterator i = containers.find(inherits);
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if (i != containers.end())
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container = i->second; // Take values from parent and overwrite them if necessary
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else
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return Error(BAD_ATTRIBUTE_VALUE, inherits);
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}
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const char* const startPattern = node->Attribute("startPattern");
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if (startPattern)
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container.startPattern = startPattern;
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const char* const endPattern = node->Attribute("endPattern");
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if (endPattern)
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container.endPattern = endPattern;
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const char* const itEndPattern = node->Attribute("itEndPattern");
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if (itEndPattern)
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container.itEndPattern = itEndPattern;
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const char* const opLessAllowed = node->Attribute("opLessAllowed");
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if (opLessAllowed)
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container.opLessAllowed = std::string(opLessAllowed) == "true";
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for (const tinyxml2::XMLElement *containerNode = node->FirstChildElement(); containerNode; containerNode = containerNode->NextSiblingElement()) {
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const std::string containerNodeName = containerNode->Name();
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if (containerNodeName == "size" || containerNodeName == "access" || containerNodeName == "other") {
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for (const tinyxml2::XMLElement *functionNode = containerNode->FirstChildElement(); functionNode; functionNode = functionNode->NextSiblingElement()) {
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if (std::string(functionNode->Name()) != "function") {
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unknown_elements.insert(functionNode->Name());
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continue;
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}
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const char* const functionName = functionNode->Attribute("name");
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if (!functionName)
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return Error(MISSING_ATTRIBUTE, "name");
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const char* const action_ptr = functionNode->Attribute("action");
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Container::Action action = Container::NO_ACTION;
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if (action_ptr) {
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std::string actionName = action_ptr;
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if (actionName == "resize")
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action = Container::RESIZE;
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else if (actionName == "clear")
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action = Container::CLEAR;
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else if (actionName == "push")
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action = Container::PUSH;
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else if (actionName == "pop")
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action = Container::POP;
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else if (actionName == "find")
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action = Container::FIND;
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else if (actionName == "insert")
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action = Container::INSERT;
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else if (actionName == "erase")
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action = Container::ERASE;
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else if (actionName == "change-content")
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action = Container::CHANGE_CONTENT;
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else if (actionName == "change-internal")
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action = Container::CHANGE_INTERNAL;
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else if (actionName == "change")
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action = Container::CHANGE;
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else
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return Error(BAD_ATTRIBUTE_VALUE, actionName);
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}
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const char* const yield_ptr = functionNode->Attribute("yields");
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Container::Yield yield = Container::NO_YIELD;
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if (yield_ptr) {
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std::string yieldName = yield_ptr;
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if (yieldName == "at_index")
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yield = Container::AT_INDEX;
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else if (yieldName == "item")
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yield = Container::ITEM;
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else if (yieldName == "buffer")
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yield = Container::BUFFER;
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else if (yieldName == "buffer-nt")
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yield = Container::BUFFER_NT;
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else if (yieldName == "start-iterator")
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yield = Container::START_ITERATOR;
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else if (yieldName == "end-iterator")
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yield = Container::END_ITERATOR;
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else if (yieldName == "iterator")
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yield = Container::ITERATOR;
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else if (yieldName == "size")
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yield = Container::SIZE;
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else if (yieldName == "empty")
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yield = Container::EMPTY;
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else
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return Error(BAD_ATTRIBUTE_VALUE, yieldName);
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}
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container.functions[functionName].action = action;
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container.functions[functionName].yield = yield;
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}
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if (containerNodeName == "size") {
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const char* const templateArg = containerNode->Attribute("templateParameter");
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if (templateArg)
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container.size_templateArgNo = atoi(templateArg);
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} else if (containerNodeName == "access") {
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const char* const indexArg = containerNode->Attribute("indexOperator");
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if (indexArg)
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container.arrayLike_indexOp = std::string(indexArg) == "array-like";
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}
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} else if (containerNodeName == "type") {
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const char* const templateArg = containerNode->Attribute("templateParameter");
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if (templateArg)
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container.type_templateArgNo = atoi(templateArg);
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const char* const string = containerNode->Attribute("string");
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if (string)
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container.stdStringLike = std::string(string) == "std-like";
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} else
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unknown_elements.insert(containerNodeName);
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}
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}
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else if (nodename == "podtype") {
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const char * const name = node->Attribute("name");
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if (!name)
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return Error(MISSING_ATTRIBUTE, "name");
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PodType podType = {0};
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const char * const size = node->Attribute("size");
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if (size)
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podType.size = atoi(size);
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const char * const sign = node->Attribute("sign");
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if (sign)
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podType.sign = *sign;
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for (const std::string &s : getnames(name))
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mPodTypes[s] = podType;
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}
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else if (nodename == "platformtype") {
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const char * const type_name = node->Attribute("name");
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if (type_name == nullptr)
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return Error(MISSING_ATTRIBUTE, "name");
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const char *value = node->Attribute("value");
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if (value == nullptr)
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return Error(MISSING_ATTRIBUTE, "value");
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PlatformType type;
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type.mType = value;
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std::set<std::string> platform;
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for (const tinyxml2::XMLElement *typenode = node->FirstChildElement(); typenode; typenode = typenode->NextSiblingElement()) {
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const std::string typenodename = typenode->Name();
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if (typenodename == "platform") {
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const char * const type_attribute = typenode->Attribute("type");
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if (type_attribute == nullptr)
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return Error(MISSING_ATTRIBUTE, "type");
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platform.insert(type_attribute);
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} else if (typenodename == "signed")
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type._signed = true;
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else if (typenodename == "unsigned")
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type._unsigned = true;
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else if (typenodename == "long")
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type._long = true;
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else if (typenodename == "pointer")
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type._pointer= true;
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else if (typenodename == "ptr_ptr")
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type._ptr_ptr = true;
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else if (typenodename == "const_ptr")
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type._const_ptr = true;
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else
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|
unknown_elements.insert(typenodename);
|
|
}
|
|
if (platform.empty()) {
|
|
const PlatformType * const type_ptr = platform_type(type_name, emptyString);
|
|
if (type_ptr) {
|
|
if (*type_ptr == type)
|
|
return Error(DUPLICATE_PLATFORM_TYPE, type_name);
|
|
return Error(PLATFORM_TYPE_REDEFINED, type_name);
|
|
}
|
|
mPlatformTypes[type_name] = type;
|
|
} else {
|
|
for (const std::string &p : platform) {
|
|
const PlatformType * const type_ptr = platform_type(type_name, p);
|
|
if (type_ptr) {
|
|
if (*type_ptr == type)
|
|
return Error(DUPLICATE_PLATFORM_TYPE, type_name);
|
|
return Error(PLATFORM_TYPE_REDEFINED, type_name);
|
|
}
|
|
mPlatforms[p].mPlatformTypes[type_name] = type;
|
|
}
|
|
}
|
|
}
|
|
|
|
else
|
|
unknown_elements.insert(nodename);
|
|
}
|
|
if (!unknown_elements.empty()) {
|
|
std::string str;
|
|
for (std::set<std::string>::const_iterator i = unknown_elements.begin(); i != unknown_elements.end();) {
|
|
str += *i;
|
|
if (++i != unknown_elements.end())
|
|
str += ", ";
|
|
}
|
|
return Error(UNKNOWN_ELEMENT, str);
|
|
}
|
|
return Error(OK);
|
|
}
|
|
|
|
Library::Error Library::loadFunction(const tinyxml2::XMLElement * const node, const std::string &name, std::set<std::string> &unknown_elements)
|
|
{
|
|
if (name.empty())
|
|
return Error(OK);
|
|
|
|
Function& func = functions[name];
|
|
|
|
for (const tinyxml2::XMLElement *functionnode = node->FirstChildElement(); functionnode; functionnode = functionnode->NextSiblingElement()) {
|
|
const std::string functionnodename = functionnode->Name();
|
|
if (functionnodename == "noreturn")
|
|
mNoReturn[name] = (strcmp(functionnode->GetText(), "true") == 0);
|
|
else if (functionnodename == "pure")
|
|
func.ispure = true;
|
|
else if (functionnodename == "const") {
|
|
func.ispure = true;
|
|
func.isconst = true; // a constant function is pure
|
|
} else if (functionnodename == "leak-ignore")
|
|
func.leakignore = true;
|
|
else if (functionnodename == "use-retval")
|
|
func.useretval = true;
|
|
else if (functionnodename == "returnValue") {
|
|
if (const char *expr = functionnode->GetText())
|
|
mReturnValue[name] = expr;
|
|
if (const char *type = functionnode->Attribute("type"))
|
|
mReturnValueType[name] = type;
|
|
if (const char *container = functionnode->Attribute("container"))
|
|
mReturnValueContainer[name] = std::atoi(container);
|
|
} else if (functionnodename == "arg") {
|
|
const char* argNrString = functionnode->Attribute("nr");
|
|
if (!argNrString)
|
|
return Error(MISSING_ATTRIBUTE, "nr");
|
|
const bool bAnyArg = strcmp(argNrString, "any") == 0;
|
|
const bool bVariadicArg = strcmp(argNrString, "variadic") == 0;
|
|
const int nr = (bAnyArg || bVariadicArg) ? -1 : std::atoi(argNrString);
|
|
ArgumentChecks &ac = func.argumentChecks[nr];
|
|
ac.optional = functionnode->Attribute("default") != nullptr;
|
|
ac.variadic = bVariadicArg;
|
|
for (const tinyxml2::XMLElement *argnode = functionnode->FirstChildElement(); argnode; argnode = argnode->NextSiblingElement()) {
|
|
const std::string argnodename = argnode->Name();
|
|
if (argnodename == "not-bool")
|
|
ac.notbool = true;
|
|
else if (argnodename == "not-null")
|
|
ac.notnull = true;
|
|
else if (argnodename == "not-uninit")
|
|
ac.notuninit = true;
|
|
else if (argnodename == "formatstr")
|
|
ac.formatstr = true;
|
|
else if (argnodename == "strz")
|
|
ac.strz = true;
|
|
else if (argnodename == "valid") {
|
|
// Validate the validation expression
|
|
const char *p = argnode->GetText();
|
|
bool error = false;
|
|
bool range = false;
|
|
for (; *p; p++) {
|
|
if (std::isdigit(*p))
|
|
error |= (*(p+1) == '-');
|
|
else if (*p == ':')
|
|
error |= range;
|
|
else if (*p == '-')
|
|
error |= (!std::isdigit(*(p+1)));
|
|
else if (*p == ',')
|
|
range = false;
|
|
else
|
|
error = true;
|
|
|
|
range |= (*p == ':');
|
|
}
|
|
if (error)
|
|
return Error(BAD_ATTRIBUTE_VALUE, argnode->GetText());
|
|
|
|
// Set validation expression
|
|
ac.valid = argnode->GetText();
|
|
}
|
|
|
|
else if (argnodename == "minsize") {
|
|
const char *typeattr = argnode->Attribute("type");
|
|
if (!typeattr)
|
|
return Error(MISSING_ATTRIBUTE, "type");
|
|
|
|
ArgumentChecks::MinSize::Type type;
|
|
if (strcmp(typeattr,"strlen")==0)
|
|
type = ArgumentChecks::MinSize::STRLEN;
|
|
else if (strcmp(typeattr,"argvalue")==0)
|
|
type = ArgumentChecks::MinSize::ARGVALUE;
|
|
else if (strcmp(typeattr,"sizeof")==0)
|
|
type = ArgumentChecks::MinSize::SIZEOF;
|
|
else if (strcmp(typeattr,"mul")==0)
|
|
type = ArgumentChecks::MinSize::MUL;
|
|
else
|
|
return Error(BAD_ATTRIBUTE_VALUE, typeattr);
|
|
|
|
const char *argattr = argnode->Attribute("arg");
|
|
if (!argattr)
|
|
return Error(MISSING_ATTRIBUTE, "arg");
|
|
if (strlen(argattr) != 1 || argattr[0]<'0' || argattr[0]>'9')
|
|
return Error(BAD_ATTRIBUTE_VALUE, argattr);
|
|
|
|
ac.minsizes.reserve(type == ArgumentChecks::MinSize::MUL ? 2 : 1);
|
|
ac.minsizes.emplace_back(type,argattr[0]-'0');
|
|
if (type == ArgumentChecks::MinSize::MUL) {
|
|
const char *arg2attr = argnode->Attribute("arg2");
|
|
if (!arg2attr)
|
|
return Error(MISSING_ATTRIBUTE, "arg2");
|
|
if (strlen(arg2attr) != 1 || arg2attr[0]<'0' || arg2attr[0]>'9')
|
|
return Error(BAD_ATTRIBUTE_VALUE, arg2attr);
|
|
ac.minsizes.back().arg2 = arg2attr[0] - '0';
|
|
}
|
|
}
|
|
|
|
else if (argnodename == "iterator") {
|
|
ac.iteratorInfo.it = true;
|
|
const char* str = argnode->Attribute("type");
|
|
ac.iteratorInfo.first = str ? (std::strcmp(str, "first") == 0) : false;
|
|
ac.iteratorInfo.last = str ? (std::strcmp(str, "last") == 0) : false;
|
|
str = argnode->Attribute("container");
|
|
ac.iteratorInfo.container = str ? std::atoi(str) : 0;
|
|
}
|
|
|
|
else
|
|
unknown_elements.insert(argnodename);
|
|
}
|
|
} else if (functionnodename == "ignorefunction") {
|
|
func.ignore = true;
|
|
} else if (functionnodename == "formatstr") {
|
|
func.formatstr = true;
|
|
const tinyxml2::XMLAttribute* scan = functionnode->FindAttribute("scan");
|
|
const tinyxml2::XMLAttribute* secure = functionnode->FindAttribute("secure");
|
|
func.formatstr_scan = scan && scan->BoolValue();
|
|
func.formatstr_secure = secure && secure->BoolValue();
|
|
} else if (functionnodename == "warn") {
|
|
WarnInfo wi;
|
|
const char* const severity = functionnode->Attribute("severity");
|
|
if (severity == nullptr)
|
|
return Error(MISSING_ATTRIBUTE, "severity");
|
|
wi.severity = Severity::fromString(severity);
|
|
|
|
const char* const cstd = functionnode->Attribute("cstd");
|
|
if (cstd) {
|
|
if (!wi.standards.setC(cstd))
|
|
return Error(BAD_ATTRIBUTE_VALUE, cstd);
|
|
} else
|
|
wi.standards.c = Standards::C89;
|
|
|
|
const char* const cppstd = functionnode->Attribute("cppstd");
|
|
if (cppstd) {
|
|
if (!wi.standards.setCPP(cppstd))
|
|
return Error(BAD_ATTRIBUTE_VALUE, cppstd);
|
|
} else
|
|
wi.standards.cpp = Standards::CPP03;
|
|
|
|
const char* const reason = functionnode->Attribute("reason");
|
|
const char* const alternatives = functionnode->Attribute("alternatives");
|
|
if (reason && alternatives) {
|
|
// Construct message
|
|
wi.message = std::string(reason) + " function '" + name + "' called. It is recommended to use ";
|
|
std::vector<std::string> alt = getnames(alternatives);
|
|
for (std::size_t i = 0; i < alt.size(); ++i) {
|
|
wi.message += "'" + alt[i] + "'";
|
|
if (i == alt.size() - 1)
|
|
wi.message += " instead.";
|
|
else if (i == alt.size() - 2)
|
|
wi.message += " or ";
|
|
else
|
|
wi.message += ", ";
|
|
}
|
|
} else
|
|
wi.message = functionnode->GetText();
|
|
|
|
functionwarn[name] = wi;
|
|
} else
|
|
unknown_elements.insert(functionnodename);
|
|
}
|
|
return Error(OK);
|
|
}
|
|
|
|
bool Library::isargvalid(const Token *ftok, int argnr, const MathLib::bigint argvalue) const
|
|
{
|
|
const ArgumentChecks *ac = getarg(ftok, argnr);
|
|
if (!ac || ac->valid.empty())
|
|
return true;
|
|
TokenList tokenList(nullptr);
|
|
std::istringstream istr(ac->valid + ',');
|
|
tokenList.createTokens(istr);
|
|
for (Token *tok = tokenList.front(); tok; tok = tok->next()) {
|
|
if (Token::Match(tok,"- %num%")) {
|
|
tok->str("-" + tok->strAt(1));
|
|
tok->deleteNext();
|
|
}
|
|
}
|
|
for (const Token *tok = tokenList.front(); tok; tok = tok->next()) {
|
|
if (tok->isNumber() && argvalue == MathLib::toLongNumber(tok->str()))
|
|
return true;
|
|
if (Token::Match(tok, "%num% : %num%") && argvalue >= MathLib::toLongNumber(tok->str()) && argvalue <= MathLib::toLongNumber(tok->strAt(2)))
|
|
return true;
|
|
if (Token::Match(tok, "%num% : ,") && argvalue >= MathLib::toLongNumber(tok->str()))
|
|
return true;
|
|
if ((!tok->previous() || tok->previous()->str() == ",") && Token::Match(tok,": %num%") && argvalue <= MathLib::toLongNumber(tok->strAt(1)))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
std::string Library::getFunctionName(const Token *ftok, bool *error) const
|
|
{
|
|
if (!ftok) {
|
|
*error = true;
|
|
return "";
|
|
}
|
|
if (ftok->isName()) {
|
|
for (const Scope *scope = ftok->scope(); scope; scope = scope->nestedIn) {
|
|
if (!scope->isClassOrStruct())
|
|
continue;
|
|
const std::vector<Type::BaseInfo> &derivedFrom = scope->definedType->derivedFrom;
|
|
for (unsigned int i = 0; i < derivedFrom.size(); ++i) {
|
|
const Type::BaseInfo &baseInfo = derivedFrom[i];
|
|
const std::string name(baseInfo.name + "::" + ftok->str());
|
|
if (functions.find(name) != functions.end() && matchArguments(ftok, name))
|
|
return name;
|
|
}
|
|
}
|
|
return ftok->str();
|
|
}
|
|
if (ftok->str() == "::") {
|
|
if (!ftok->astOperand2())
|
|
return getFunctionName(ftok->astOperand1(), error);
|
|
return getFunctionName(ftok->astOperand1(),error) + "::" + getFunctionName(ftok->astOperand2(),error);
|
|
}
|
|
if (ftok->str() == "." && ftok->astOperand1()) {
|
|
const std::string type = astCanonicalType(ftok->astOperand1());
|
|
if (type.empty()) {
|
|
*error = true;
|
|
return "";
|
|
}
|
|
|
|
return type + "::" + getFunctionName(ftok->astOperand2(),error);
|
|
}
|
|
*error = true;
|
|
return "";
|
|
}
|
|
|
|
std::string Library::getFunctionName(const Token *ftok) const
|
|
{
|
|
if (!Token::Match(ftok, "%name% (") && (ftok->strAt(-1) != "&" || ftok->previous()->astOperand2()))
|
|
return "";
|
|
|
|
// Lookup function name using AST..
|
|
if (ftok->astParent()) {
|
|
bool error = false;
|
|
const std::string ret = getFunctionName(ftok->next()->astOperand1(), &error);
|
|
return error ? std::string() : ret;
|
|
}
|
|
|
|
// Lookup function name without using AST..
|
|
if (Token::simpleMatch(ftok->previous(), "."))
|
|
return "";
|
|
if (!Token::Match(ftok->tokAt(-2), "%name% ::"))
|
|
return ftok->str();
|
|
std::string ret(ftok->str());
|
|
ftok = ftok->tokAt(-2);
|
|
while (Token::Match(ftok, "%name% ::")) {
|
|
ret = ftok->str() + "::" + ret;
|
|
ftok = ftok->tokAt(-2);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
bool Library::isnullargbad(const Token *ftok, int argnr) const
|
|
{
|
|
const ArgumentChecks *arg = getarg(ftok, argnr);
|
|
if (!arg) {
|
|
// scan format string argument should not be null
|
|
const std::string funcname = getFunctionName(ftok);
|
|
const std::map<std::string, Function>::const_iterator it = functions.find(funcname);
|
|
if (it != functions.cend() && it->second.formatstr && it->second.formatstr_scan)
|
|
return true;
|
|
}
|
|
return arg && arg->notnull;
|
|
}
|
|
|
|
bool Library::isuninitargbad(const Token *ftok, int argnr) const
|
|
{
|
|
const ArgumentChecks *arg = getarg(ftok, argnr);
|
|
if (!arg) {
|
|
// non-scan format string argument should not be uninitialized
|
|
const std::string funcname = getFunctionName(ftok);
|
|
const std::map<std::string, Function>::const_iterator it = functions.find(funcname);
|
|
if (it != functions.cend() && it->second.formatstr && !it->second.formatstr_scan)
|
|
return true;
|
|
}
|
|
return arg && arg->notuninit;
|
|
}
|
|
|
|
|
|
/** get allocation info for function */
|
|
const Library::AllocFunc* Library::alloc(const Token *tok) const
|
|
{
|
|
const std::string funcname = getFunctionName(tok);
|
|
return isNotLibraryFunction(tok) && functions.find(funcname) != functions.end() ? nullptr : getAllocDealloc(mAlloc, funcname);
|
|
}
|
|
|
|
/** get deallocation info for function */
|
|
const Library::AllocFunc* Library::dealloc(const Token *tok) const
|
|
{
|
|
const std::string funcname = getFunctionName(tok);
|
|
return isNotLibraryFunction(tok) && functions.find(funcname) != functions.end() ? nullptr : getAllocDealloc(mDealloc, funcname);
|
|
}
|
|
|
|
/** get allocation id for function */
|
|
int Library::alloc(const Token *tok, int arg) const
|
|
{
|
|
const Library::AllocFunc* af = alloc(tok);
|
|
return (af && af->arg == arg) ? af->groupId : 0;
|
|
}
|
|
|
|
/** get deallocation id for function */
|
|
int Library::dealloc(const Token *tok, int arg) const
|
|
{
|
|
const Library::AllocFunc* af = dealloc(tok);
|
|
return (af && af->arg == arg) ? af->groupId : 0;
|
|
}
|
|
|
|
|
|
const Library::ArgumentChecks * Library::getarg(const Token *ftok, int argnr) const
|
|
{
|
|
if (isNotLibraryFunction(ftok))
|
|
return nullptr;
|
|
const std::map<std::string, Function>::const_iterator it1 = functions.find(getFunctionName(ftok));
|
|
if (it1 == functions.cend())
|
|
return nullptr;
|
|
const std::map<int,ArgumentChecks>::const_iterator it2 = it1->second.argumentChecks.find(argnr);
|
|
if (it2 != it1->second.argumentChecks.cend())
|
|
return &it2->second;
|
|
const std::map<int,ArgumentChecks>::const_iterator it3 = it1->second.argumentChecks.find(-1);
|
|
if (it3 != it1->second.argumentChecks.cend())
|
|
return &it3->second;
|
|
return nullptr;
|
|
}
|
|
|
|
bool Library::isScopeNoReturn(const Token *end, std::string *unknownFunc) const
|
|
{
|
|
if (unknownFunc)
|
|
unknownFunc->clear();
|
|
|
|
if (!Token::simpleMatch(end->tokAt(-2), ") ; }"))
|
|
return false;
|
|
|
|
const Token *funcname = end->linkAt(-2)->previous();
|
|
const Token *start = funcname;
|
|
if (Token::Match(funcname->tokAt(-3),"( * %name% )")) {
|
|
funcname = funcname->previous();
|
|
start = funcname->tokAt(-3);
|
|
} else if (funcname->isName()) {
|
|
while (Token::Match(start, "%name%|.|::"))
|
|
start = start->previous();
|
|
} else {
|
|
return false;
|
|
}
|
|
if (Token::Match(start,"[;{}]") && Token::Match(funcname, "%name% )| (")) {
|
|
if (funcname->str() == "exit")
|
|
return true;
|
|
if (!isnotnoreturn(funcname)) {
|
|
if (unknownFunc && !isnoreturn(funcname))
|
|
*unknownFunc = funcname->str();
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
const Library::Container* Library::detectContainer(const Token* typeStart, bool iterator) const
|
|
{
|
|
for (std::map<std::string, Container>::const_iterator i = containers.begin(); i != containers.end(); ++i) {
|
|
const Container& container = i->second;
|
|
if (container.startPattern.empty())
|
|
continue;
|
|
|
|
if (!endsWith(container.startPattern, '<')) {
|
|
if (!Token::Match(typeStart, (container.startPattern + " !!::").c_str()))
|
|
continue;
|
|
} else if (!Token::Match(typeStart, (container.startPattern + " !!::").c_str()))
|
|
continue;
|
|
|
|
if (!iterator && container.endPattern.empty()) // If endPattern is undefined, it will always match, but itEndPattern has to be defined.
|
|
return &container;
|
|
|
|
for (const Token* tok = typeStart; tok && !tok->varId(); tok = tok->next()) {
|
|
if (tok->link()) {
|
|
const std::string& endPattern = iterator ? container.itEndPattern : container.endPattern;
|
|
if (Token::Match(tok->link(), endPattern.c_str()))
|
|
return &container;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
bool Library::isContainerYield(const Token * const cond, Library::Container::Yield y, const std::string& fallback)
|
|
{
|
|
if (!cond)
|
|
return false;
|
|
if (cond->str() == "(") {
|
|
const Token* tok = cond->astOperand1();
|
|
if (tok && tok->str() == ".") {
|
|
if (tok->astOperand1() && tok->astOperand1()->valueType()) {
|
|
if (const Library::Container *container = tok->astOperand1()->valueType()->container) {
|
|
return tok->astOperand2() && y == container->getYield(tok->astOperand2()->str());
|
|
}
|
|
} else if (!fallback.empty()) {
|
|
return Token::simpleMatch(cond, "( )") && cond->previous()->str() == fallback;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// returns true if ftok is not a library function
|
|
bool Library::isNotLibraryFunction(const Token *ftok) const
|
|
{
|
|
if (ftok->function() && ftok->function()->nestedIn && ftok->function()->nestedIn->type != Scope::eGlobal)
|
|
return true;
|
|
|
|
// variables are not library functions.
|
|
if (ftok->varId())
|
|
return true;
|
|
|
|
return !matchArguments(ftok, getFunctionName(ftok));
|
|
}
|
|
|
|
bool Library::matchArguments(const Token *ftok, const std::string &functionName) const
|
|
{
|
|
const int callargs = numberOfArguments(ftok);
|
|
const std::map<std::string, Function>::const_iterator it = functions.find(functionName);
|
|
if (it == functions.cend())
|
|
return (callargs == 0);
|
|
int args = 0;
|
|
int firstOptionalArg = -1;
|
|
for (std::map<int, ArgumentChecks>::const_iterator it2 = it->second.argumentChecks.cbegin(); it2 != it->second.argumentChecks.cend(); ++it2) {
|
|
if (it2->first > args)
|
|
args = it2->first;
|
|
if (it2->second.optional && (firstOptionalArg == -1 || firstOptionalArg > it2->first))
|
|
firstOptionalArg = it2->first;
|
|
|
|
if (it2->second.formatstr || it2->second.variadic)
|
|
return args <= callargs;
|
|
}
|
|
return (firstOptionalArg < 0) ? args == callargs : (callargs >= firstOptionalArg-1 && callargs <= args);
|
|
}
|
|
|
|
const Library::WarnInfo* Library::getWarnInfo(const Token* ftok) const
|
|
{
|
|
if (isNotLibraryFunction(ftok))
|
|
return nullptr;
|
|
std::map<std::string, WarnInfo>::const_iterator i = functionwarn.find(getFunctionName(ftok));
|
|
if (i == functionwarn.cend())
|
|
return nullptr;
|
|
return &i->second;
|
|
}
|
|
|
|
bool Library::formatstr_function(const Token* ftok) const
|
|
{
|
|
if (isNotLibraryFunction(ftok))
|
|
return false;
|
|
|
|
const std::map<std::string, Function>::const_iterator it = functions.find(getFunctionName(ftok));
|
|
if (it != functions.cend())
|
|
return it->second.formatstr;
|
|
return false;
|
|
}
|
|
|
|
int Library::formatstr_argno(const Token* ftok) const
|
|
{
|
|
const std::map<int, Library::ArgumentChecks>& argumentChecksFunc = functions.at(getFunctionName(ftok)).argumentChecks;
|
|
for (std::map<int, Library::ArgumentChecks>::const_iterator i = argumentChecksFunc.cbegin(); i != argumentChecksFunc.cend(); ++i) {
|
|
if (i->second.formatstr) {
|
|
return i->first - 1;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
bool Library::formatstr_scan(const Token* ftok) const
|
|
{
|
|
return functions.at(getFunctionName(ftok)).formatstr_scan;
|
|
}
|
|
|
|
bool Library::formatstr_secure(const Token* ftok) const
|
|
{
|
|
return functions.at(getFunctionName(ftok)).formatstr_secure;
|
|
}
|
|
|
|
bool Library::isUseRetVal(const Token* ftok) const
|
|
{
|
|
if (isNotLibraryFunction(ftok))
|
|
return false;
|
|
const std::map<std::string, Function>::const_iterator it = functions.find(getFunctionName(ftok));
|
|
if (it != functions.cend())
|
|
return it->second.useretval;
|
|
return false;
|
|
}
|
|
|
|
const std::string& Library::returnValue(const Token *ftok) const
|
|
{
|
|
if (isNotLibraryFunction(ftok))
|
|
return emptyString;
|
|
const std::map<std::string, std::string>::const_iterator it = mReturnValue.find(getFunctionName(ftok));
|
|
return it != mReturnValue.end() ? it->second : emptyString;
|
|
}
|
|
|
|
const std::string& Library::returnValueType(const Token *ftok) const
|
|
{
|
|
if (isNotLibraryFunction(ftok))
|
|
return emptyString;
|
|
const std::map<std::string, std::string>::const_iterator it = mReturnValueType.find(getFunctionName(ftok));
|
|
return it != mReturnValueType.end() ? it->second : emptyString;
|
|
}
|
|
|
|
int Library::returnValueContainer(const Token *ftok) const
|
|
{
|
|
if (isNotLibraryFunction(ftok))
|
|
return -1;
|
|
const std::map<std::string, int>::const_iterator it = mReturnValueContainer.find(getFunctionName(ftok));
|
|
return it != mReturnValueContainer.end() ? it->second : -1;
|
|
}
|
|
|
|
bool Library::hasminsize(const std::string &functionName) const
|
|
{
|
|
const std::map<std::string, Function>::const_iterator it1 = functions.find(functionName);
|
|
if (it1 == functions.cend())
|
|
return false;
|
|
for (std::map<int, ArgumentChecks>::const_iterator it2 = it1->second.argumentChecks.cbegin(); it2 != it1->second.argumentChecks.cend(); ++it2) {
|
|
if (!it2->second.minsizes.empty())
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool Library::ignorefunction(const std::string& functionName) const
|
|
{
|
|
const std::map<std::string, Function>::const_iterator it = functions.find(functionName);
|
|
if (it != functions.cend())
|
|
return it->second.ignore;
|
|
return false;
|
|
}
|
|
bool Library::isUse(const std::string& functionName) const
|
|
{
|
|
const std::map<std::string, Function>::const_iterator it = functions.find(functionName);
|
|
if (it != functions.cend())
|
|
return it->second.use;
|
|
return false;
|
|
}
|
|
bool Library::isLeakIgnore(const std::string& functionName) const
|
|
{
|
|
const std::map<std::string, Function>::const_iterator it = functions.find(functionName);
|
|
if (it != functions.cend())
|
|
return it->second.leakignore;
|
|
return false;
|
|
}
|
|
bool Library::isFunctionConst(const std::string& functionName, bool pure) const
|
|
{
|
|
const std::map<std::string, Function>::const_iterator it = functions.find(functionName);
|
|
if (it != functions.cend())
|
|
return pure ? it->second.ispure : it->second.isconst;
|
|
return false;
|
|
}
|
|
bool Library::isFunctionConst(const Token *ftok) const
|
|
{
|
|
if (ftok->function() && ftok->function()->isAttributeConst())
|
|
return true;
|
|
if (isNotLibraryFunction(ftok))
|
|
return false;
|
|
const std::map<std::string, Function>::const_iterator it = functions.find(getFunctionName(ftok));
|
|
return (it != functions.end() && it->second.isconst);
|
|
}
|
|
bool Library::isnoreturn(const Token *ftok) const
|
|
{
|
|
if (ftok->function() && ftok->function()->isAttributeNoreturn())
|
|
return true;
|
|
if (isNotLibraryFunction(ftok))
|
|
return false;
|
|
const std::map<std::string, bool>::const_iterator it = mNoReturn.find(getFunctionName(ftok));
|
|
return (it != mNoReturn.end() && it->second);
|
|
}
|
|
|
|
bool Library::isnotnoreturn(const Token *ftok) const
|
|
{
|
|
if (ftok->function() && ftok->function()->isAttributeNoreturn())
|
|
return false;
|
|
if (isNotLibraryFunction(ftok))
|
|
return false;
|
|
const std::map<std::string, bool>::const_iterator it = mNoReturn.find(getFunctionName(ftok));
|
|
return (it != mNoReturn.end() && !it->second);
|
|
}
|
|
|
|
bool Library::markupFile(const std::string &path) const
|
|
{
|
|
return mMarkupExtensions.find(Path::getFilenameExtensionInLowerCase(path)) != mMarkupExtensions.end();
|
|
}
|
|
|
|
bool Library::processMarkupAfterCode(const std::string &path) const
|
|
{
|
|
const std::map<std::string, bool>::const_iterator it = mProcessAfterCode.find(Path::getFilenameExtensionInLowerCase(path));
|
|
return (it == mProcessAfterCode.end() || it->second);
|
|
}
|
|
|
|
bool Library::reportErrors(const std::string &path) const
|
|
{
|
|
const std::map<std::string, bool>::const_iterator it = mReportErrors.find(Path::getFilenameExtensionInLowerCase(path));
|
|
return (it == mReportErrors.end() || it->second);
|
|
}
|
|
|
|
bool Library::isexecutableblock(const std::string &file, const std::string &token) const
|
|
{
|
|
const std::map<std::string, CodeBlock>::const_iterator it = mExecutableBlocks.find(Path::getFilenameExtensionInLowerCase(file));
|
|
return (it != mExecutableBlocks.end() && it->second.isBlock(token));
|
|
}
|
|
|
|
int Library::blockstartoffset(const std::string &file) const
|
|
{
|
|
int offset = -1;
|
|
const std::map<std::string, CodeBlock>::const_iterator map_it
|
|
= mExecutableBlocks.find(Path::getFilenameExtensionInLowerCase(file));
|
|
|
|
if (map_it != mExecutableBlocks.end()) {
|
|
offset = map_it->second.offset();
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
const std::string& Library::blockstart(const std::string &file) const
|
|
{
|
|
const std::map<std::string, CodeBlock>::const_iterator map_it
|
|
= mExecutableBlocks.find(Path::getFilenameExtensionInLowerCase(file));
|
|
|
|
if (map_it != mExecutableBlocks.end()) {
|
|
return map_it->second.start();
|
|
}
|
|
return emptyString;
|
|
}
|
|
|
|
const std::string& Library::blockend(const std::string &file) const
|
|
{
|
|
const std::map<std::string, CodeBlock>::const_iterator map_it
|
|
= mExecutableBlocks.find(Path::getFilenameExtensionInLowerCase(file));
|
|
|
|
if (map_it != mExecutableBlocks.end()) {
|
|
return map_it->second.end();
|
|
}
|
|
return emptyString;
|
|
}
|
|
|
|
bool Library::iskeyword(const std::string &file, const std::string &keyword) const
|
|
{
|
|
const std::map<std::string, std::set<std::string> >::const_iterator it =
|
|
mKeywords.find(Path::getFilenameExtensionInLowerCase(file));
|
|
return (it != mKeywords.end() && it->second.count(keyword));
|
|
}
|
|
|
|
bool Library::isimporter(const std::string& file, const std::string &importer) const
|
|
{
|
|
const std::map<std::string, std::set<std::string> >::const_iterator it =
|
|
mImporters.find(Path::getFilenameExtensionInLowerCase(file));
|
|
return (it != mImporters.end() && it->second.count(importer) > 0);
|
|
}
|