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cppcheck/lib/library.h

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2013 Daniel Marjamäki and Cppcheck team.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
//---------------------------------------------------------------------------
#ifndef libraryH
#define libraryH
//---------------------------------------------------------------------------
#include "config.h"
#include <map>
#include <set>
#include <string>
#include <list>
#include <algorithm>
#include "path.h"
/// @addtogroup Core
/// @{
/**
* @brief Library definitions handling
*/
class CPPCHECKLIB Library {
public:
Library();
Library(const Library &);
~Library();
bool load(const char exename [], const char path []);
/** get allocation id for function (by name) */
int alloc(const std::string &name) const {
return getid(_alloc, name);
}
/** get deallocation id for function (by name) */
int dealloc(const std::string &name) const {
return getid(_dealloc, name);
}
/** set allocation id for function */
void setalloc(const std::string &functionname, int id) {
_alloc[functionname] = id;
}
void setdealloc(const std::string &functionname, int id) {
_dealloc[functionname] = id;
}
/** add noreturn function setting */
void setnoreturn(const std::string& funcname, bool noreturn) {
_noreturn[funcname] = noreturn;
}
/** is allocation type memory? */
static bool ismemory(int id) {
return ((id > 0) && ((id & 1) == 0));
}
/** is allocation type resource? */
static bool isresource(int id) {
return ((id > 0) && ((id & 1) == 1));
}
std::set<std::string> use;
std::set<std::string> leakignore;
bool isnoreturn(const std::string &name) const {
std::map<std::string, bool>::const_iterator it = _noreturn.find(name);
return (it != _noreturn.end() && it->second);
}
bool isnotnoreturn(const std::string &name) const {
std::map<std::string, bool>::const_iterator it = _noreturn.find(name);
return (it != _noreturn.end() && !it->second);
}
struct ArgumentChecks {
ArgumentChecks() {
notnull = notuninit = formatstr = strz = false;
}
bool notnull;
bool notuninit;
bool formatstr;
bool strz;
};
// function name, argument nr => argument data
std::map<std::string, std::map<int, ArgumentChecks> > argumentChecks;
bool isnullargbad(const std::string &functionName, int argnr) const {
const ArgumentChecks *arg = getarg(functionName, argnr);
return arg && arg->notnull;
}
bool isuninitargbad(const std::string &functionName, int argnr) const {
const ArgumentChecks *arg = getarg(functionName, argnr);
return arg && arg->notuninit;
}
bool isargformatstr(const std::string &functionName, int argnr) const {
const ArgumentChecks *arg = getarg(functionName, argnr);
return arg && arg->formatstr;
}
bool isargstrz(const std::string &functionName, int argnr) const {
const ArgumentChecks *arg = getarg(functionName, argnr);
return arg && arg->strz;
}
bool acceptFile(const std::string &path) const {
const std::string extension = Path::getFilenameExtensionInLowerCase(path);
const std::list<std::string>::const_iterator it =
std::find(_fileextensions.begin(), _fileextensions.end(), extension);
return it != _fileextensions.end();
}
bool reportErrors(const std::string &path) const {
const std::map<std::string, bool>::const_iterator it =
_reporterrors.find(Path::getFilenameExtensionInLowerCase(path));
if (it != _reporterrors.end()) {
return it->second;
}
// assume true if we don't know as it'll be a core-type (c/cpp etc)
return true;
}
bool ignorefunction(const std::string &function) const {
const std::map<std::string, bool>::const_iterator it = _ignorefunction.find(function);
return (it != _ignorefunction.end() && it->second);
}
bool isexecutableblock(const std::string &file, const std::string &token) const {
bool isexecblock;
const std::map<std::string, CodeBlock>::const_iterator map_it
= _executableblocks.find(Path::getFilenameExtensionInLowerCase(file));
if (map_it != _executableblocks.end()) {
isexecblock = map_it->second.isBlock(token);
} else {
isexecblock = false;
}
return isexecblock;
}
int blockstartoffset(const std::string &file) const {
int offset = -1;
const std::map<std::string, CodeBlock>::const_iterator map_it
= _executableblocks.find(Path::getFilenameExtensionInLowerCase(file));
if (map_it != _executableblocks.end()) {
offset = map_it->second.offset();
}
return offset;
}
std::string blockstart(const std::string &file) const {
std::string start;
const std::map<std::string, CodeBlock>::const_iterator map_it
= _executableblocks.find(Path::getFilenameExtensionInLowerCase(file));
if (map_it != _executableblocks.end()) {
start = map_it->second.start();
}
return start;
}
std::string blockend(const std::string &file) const {
std::string end;
const std::map<std::string, CodeBlock>::const_iterator map_it
= _executableblocks.find(Path::getFilenameExtensionInLowerCase(file));
if (map_it != _executableblocks.end()) {
end = map_it->second.end();
}
return end;
}
bool iskeyword(const std::string &file, const std::string &keyword) const {
bool iskw;
const std::map<std::string, std::list<std::string> >::const_iterator it =
_keywords.find(Path::getFilenameExtensionInLowerCase(file));
if (it != _keywords.end()) {
const std::list<std::string> list = it->second;
const std::list<std::string>::const_iterator list_it =
std::find(list.begin(), list.end(), keyword);
iskw = list_it != list.end();
} else {
iskw = false;
}
return iskw;
}
bool isexporter(const std::string &prefix) const {
const std::map<std::string, ExportedFunctions>::const_iterator it =
_exporters.find(prefix);
return it != _exporters.end();
}
bool isexportedprefix(const std::string &prefix, const std::string &token) const {
const std::map<std::string, ExportedFunctions>::const_iterator it = _exporters.find(prefix);
if (it != _exporters.end()) {
return it->second.isPrefix(token);
} else
return false;
}
bool isexportedsuffix(const std::string &prefix, const std::string &token) const {
const std::map<std::string, ExportedFunctions>::const_iterator it = _exporters.find(prefix);
if (it != _exporters.end()) {
return it->second.isSuffix(token);
} else
return false;
}
bool isimporter(const std::string& file, const std::string &importer) const {
bool isImporter;
const std::map<std::string, std::list<std::string> >::const_iterator it =
_importers.find(Path::getFilenameExtensionInLowerCase(file));
if (it != _importers.end()) {
const std::list<std::string> list = it->second;
const std::list<std::string>::const_iterator it2 =
std::find(list.begin(), list.end(), importer);
isImporter = (it2 != list.end());
} else {
isImporter = false;
}
return isImporter;
}
bool isreflection(const std::string& file, const std::string &token) const {
bool isReflecMethod;
const std::map<std::string,std::map<std::string,int> >::const_iterator it
= _reflection.find(Path::getFilenameExtensionInLowerCase(file));
if (it != _reflection.end()) {
const std::map<std::string,int>::const_iterator it2 =
it->second.find(token);
isReflecMethod = it2 != it->second.end();
} else {
isReflecMethod = false;
}
return isReflecMethod;
}
int reflectionArgument(const std::string& file, const std::string &token) const {
int argIndex = -1;
const std::map<std::string,std::map<std::string,int> >::const_iterator it
= _reflection.find(Path::getFilenameExtensionInLowerCase(file));
if (it != _reflection.end()) {
const std::map<std::string,int>::const_iterator it2 =
it->second.find(token);
if (it2 != it->second.end()) {
argIndex = it2->second;
}
}
return argIndex;
}
std::set<std::string> returnuninitdata;
private:
class ExportedFunctions {
public:
void addPrefix(const std::string& prefix) {
_prefixes.push_back(prefix);
}
void addSuffix(const std::string& suffix) {
_suffixes.push_back(suffix);
}
bool isPrefix(const std::string& prefix) const {
return std::find(_prefixes.begin(), _prefixes.end(), prefix)
!= _prefixes.end();
}
bool isSuffix(const std::string& suffix) const {
return std::find(_suffixes.begin(), _suffixes.end(), suffix)
!= _suffixes.end();
}
private:
std::list<std::string> _prefixes;
std::list<std::string> _suffixes;
};
class CodeBlock {
public:
CodeBlock() : _offset(0) {}
void setStart(const std::string& s) {
_start = s;
}
void setEnd(const std::string& e) {
_end = e;
}
void setOffset(const int o) {
_offset = o;
}
void addBlock(const std::string& blockName) {
_blocks.insert(blockName);
}
std::string start() const {
return _start;
}
std::string end() const {
return _end;
}
int offset() const {
return _offset;
}
bool isBlock(const std::string& blockName) const {
return _blocks.find(blockName) != _blocks.end();
}
private:
std::string _start;
std::string _end;
int _offset;
std::set<std::string> _blocks;
};
int allocid;
std::map<std::string, int> _alloc; // allocation functions
std::map<std::string, int> _dealloc; // deallocation functions
std::map<std::string, bool> _noreturn; // is function noreturn?
std::map<std::string, bool> _ignorefunction; // ignore functions/macros from a library (gtk, qt etc)
std::map<std::string, bool> _reporterrors;
std::list<std::string> _fileextensions; // accepted file extensions
std::map<std::string, std::list<std::string> > _keywords; // keywords for code in the library
std::map<std::string, CodeBlock> _executableblocks; // keywords for blocks of executable code
std::map<std::string, ExportedFunctions> _exporters; // keywords that export variables/functions to libraries (meta-code/macros)
std::map<std::string, std::list<std::string> > _importers; // keywords that import variables/functions
std::map<std::string,std::map<std::string,int> > _reflection; // invokation of reflection
const ArgumentChecks * getarg(const std::string &functionName, int argnr) const {
std::map<std::string, std::map<int, ArgumentChecks> >::const_iterator it1;
it1 = argumentChecks.find(functionName);
if (it1 != argumentChecks.end()) {
const std::map<int,ArgumentChecks>::const_iterator it2 = it1->second.find(argnr);
if (it2 != it1->second.end())
return &it2->second;
}
return NULL;
}
static int getid(const std::map<std::string,int> &data, const std::string &name) {
const std::map<std::string,int>::const_iterator it = data.find(name);
return (it == data.end()) ? 0 : it->second;
}
};
/// @}
//---------------------------------------------------------------------------
#endif // libraryH
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