cppcheck/lib/settings.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2016 Cppcheck team.
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*
* 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/>.
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*/
#include "settings.h"
#include "preprocessor.h" // Preprocessor
#include "utils.h"
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#include "tinyxml2.h"
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#include <fstream>
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#include <set>
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Settings::Settings()
: _terminated(false),
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debug(false),
debugnormal(false),
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debugwarnings(false),
dump(false),
exceptionHandling(false),
inconclusive(false),
jointSuppressionReport(false),
experimental(false),
quiet(false),
inlineSuppressions(false),
verbose(false),
force(false),
relativePaths(false),
xml(false), xml_version(1),
jobs(1),
loadAverage(0),
exitCode(0),
showtime(SHOWTIME_NONE),
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preprocessOnly(false),
maxConfigs(12),
enforcedLang(None),
reportProgress(false),
checkConfiguration(false),
checkLibrary(false)
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{
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// This assumes the code you are checking is for the same architecture this is compiled on.
#if defined(_WIN64)
platform(Win64);
#elif defined(_WIN32)
platform(Win32A);
#else
platform(Native);
#endif
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}
namespace {
const std::set<std::string> id = make_container< std::set<std::string> > ()
<< "warning"
<< "style"
<< "performance"
<< "portability"
<< "information"
<< "missingInclude"
<< "unusedFunction"
#ifdef CHECK_INTERNAL
<< "internal"
#endif
;
}
std::string Settings::addEnabled(const std::string &str)
{
// Enable parameters may be comma separated...
if (str.find(',') != std::string::npos) {
std::string::size_type prevPos = 0;
std::string::size_type pos = 0;
while ((pos = str.find(',', pos)) != std::string::npos) {
if (pos == prevPos)
return std::string("cppcheck: --enable parameter is empty");
const std::string errmsg(addEnabled(str.substr(prevPos, pos - prevPos)));
if (!errmsg.empty())
return errmsg;
++pos;
prevPos = pos;
}
if (prevPos >= str.length())
return std::string("cppcheck: --enable parameter is empty");
return addEnabled(str.substr(prevPos));
}
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if (str == "all") {
std::set<std::string>::const_iterator it;
for (it = id.begin(); it != id.end(); ++it) {
if (*it == "internal")
continue;
_enabled.insert(*it);
}
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} else if (id.find(str) != id.end()) {
_enabled.insert(str);
if (str == "information") {
_enabled.insert("missingInclude");
}
} else {
if (str.empty())
return std::string("cppcheck: --enable parameter is empty");
else
return std::string("cppcheck: there is no --enable parameter with the name '" + str + "'");
}
return std::string("");
}
bool Settings::append(const std::string &filename)
{
std::ifstream fin(filename.c_str());
if (!fin.is_open()) {
return false;
}
std::string line;
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while (std::getline(fin, line)) {
_append += line + "\n";
}
Preprocessor::preprocessWhitespaces(_append);
return true;
}
const std::string &Settings::append() const
{
return _append;
}
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bool Settings::platform(PlatformType type)
{
switch (type) {
case Unspecified:
platformType = type;
sizeof_bool = sizeof(bool);
sizeof_short = sizeof(short);
sizeof_int = sizeof(int);
sizeof_long = sizeof(long);
sizeof_long_long = sizeof(long long);
sizeof_float = sizeof(float);
sizeof_double = sizeof(double);
sizeof_long_double = sizeof(long double);
sizeof_wchar_t = sizeof(wchar_t);
sizeof_size_t = sizeof(std::size_t);
sizeof_pointer = sizeof(void *);
defaultSign = '\0';
char_bit = 8;
short_bit = char_bit * sizeof_short;
int_bit = char_bit * sizeof_int;
long_bit = char_bit * sizeof_long;
long_long_bit = char_bit * sizeof_long_long;
return true;
case Native: // same as system this code was compile on
platformType = type;
sizeof_bool = sizeof(bool);
sizeof_short = sizeof(short);
sizeof_int = sizeof(int);
sizeof_long = sizeof(long);
sizeof_long_long = sizeof(long long);
sizeof_float = sizeof(float);
sizeof_double = sizeof(double);
sizeof_long_double = sizeof(long double);
sizeof_wchar_t = sizeof(wchar_t);
sizeof_size_t = sizeof(std::size_t);
sizeof_pointer = sizeof(void *);
{
char x = -1;
defaultSign = (x < 0) ? 's' : 'u';
}
char_bit = 8;
short_bit = char_bit * sizeof_short;
int_bit = char_bit * sizeof_int;
long_bit = char_bit * sizeof_long;
long_long_bit = char_bit * sizeof_long_long;
return true;
case Win32W:
case Win32A:
platformType = type;
sizeof_bool = 1; // 4 in Visual C++ 4.2
sizeof_short = 2;
sizeof_int = 4;
sizeof_long = 4;
sizeof_long_long = 8;
sizeof_float = 4;
sizeof_double = 8;
sizeof_long_double = 8;
sizeof_wchar_t = 2;
sizeof_size_t = 4;
sizeof_pointer = 4;
defaultSign = '\0';
char_bit = 8;
short_bit = char_bit * sizeof_short;
int_bit = char_bit * sizeof_int;
long_bit = char_bit * sizeof_long;
long_long_bit = char_bit * sizeof_long_long;
return true;
case Win64:
platformType = type;
sizeof_bool = 1;
sizeof_short = 2;
sizeof_int = 4;
sizeof_long = 4;
sizeof_long_long = 8;
sizeof_float = 4;
sizeof_double = 8;
sizeof_long_double = 8;
sizeof_wchar_t = 2;
sizeof_size_t = 8;
sizeof_pointer = 8;
defaultSign = '\0';
char_bit = 8;
short_bit = char_bit * sizeof_short;
int_bit = char_bit * sizeof_int;
long_bit = char_bit * sizeof_long;
long_long_bit = char_bit * sizeof_long_long;
return true;
case Unix32:
platformType = type;
sizeof_bool = 1;
sizeof_short = 2;
sizeof_int = 4;
sizeof_long = 4;
sizeof_long_long = 8;
sizeof_float = 4;
sizeof_double = 8;
sizeof_long_double = 12;
sizeof_wchar_t = 4;
sizeof_size_t = 4;
sizeof_pointer = 4;
defaultSign = '\0';
char_bit = 8;
short_bit = char_bit * sizeof_short;
int_bit = char_bit * sizeof_int;
long_bit = char_bit * sizeof_long;
long_long_bit = char_bit * sizeof_long_long;
return true;
case Unix64:
platformType = type;
sizeof_bool = 1;
sizeof_short = 2;
sizeof_int = 4;
sizeof_long = 8;
sizeof_long_long = 8;
sizeof_float = 4;
sizeof_double = 8;
sizeof_long_double = 16;
sizeof_wchar_t = 4;
sizeof_size_t = 8;
sizeof_pointer = 8;
defaultSign = '\0';
char_bit = 8;
short_bit = char_bit * sizeof_short;
int_bit = char_bit * sizeof_int;
long_bit = char_bit * sizeof_long;
long_long_bit = char_bit * sizeof_long_long;
return true;
}
// unsupported platform
return false;
}
bool Settings::platformFile(const std::string &filename)
{
// open file..
tinyxml2::XMLDocument doc;
if (doc.LoadFile(filename.c_str()) != tinyxml2::XML_SUCCESS)
return false;
const tinyxml2::XMLElement * const rootnode = doc.FirstChildElement();
if (!rootnode || std::strcmp(rootnode->Name(),"platform") != 0)
return false;
for (const tinyxml2::XMLElement *node = rootnode->FirstChildElement(); node; node = node->NextSiblingElement()) {
if (std::strcmp(node->Name(), "default-sign") == 0)
defaultSign = *node->GetText();
else if (std::strcmp(node->Name(), "char_bit") == 0)
char_bit = std::atoi(node->GetText());
else if (std::strcmp(node->Name(), "sizeof") == 0) {
for (const tinyxml2::XMLElement *sz = node->FirstChildElement(); sz; sz = sz->NextSiblingElement()) {
if (std::strcmp(node->Name(), "short") == 0)
sizeof_short = std::atoi(node->GetText());
else if (std::strcmp(node->Name(), "int") == 0)
sizeof_int = std::atoi(node->GetText());
else if (std::strcmp(node->Name(), "long") == 0)
sizeof_long = std::atoi(node->GetText());
else if (std::strcmp(node->Name(), "long-long") == 0)
sizeof_long_long = std::atoi(node->GetText());
else if (std::strcmp(node->Name(), "float") == 0)
sizeof_float = std::atoi(node->GetText());
else if (std::strcmp(node->Name(), "double") == 0)
sizeof_double = std::atoi(node->GetText());
else if (std::strcmp(node->Name(), "long-double") == 0)
sizeof_long_double = std::atoi(node->GetText());
else if (std::strcmp(node->Name(), "pointer") == 0)
sizeof_pointer = std::atoi(node->GetText());
else if (std::strcmp(node->Name(), "size_t") == 0)
sizeof_size_t = std::atoi(node->GetText());
else if (std::strcmp(node->Name(), "wchar_t") == 0)
sizeof_wchar_t = std::atoi(node->GetText());
}
}
}
short_bit = char_bit * sizeof_short;
int_bit = char_bit * sizeof_int;
long_bit = char_bit * sizeof_long;
long_long_bit = char_bit * sizeof_long_long;
return true;
}