/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2017 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/>.
*/
#include "cppcheck.h"
#include "mathlib.h"
#include "path.h"
#include <fstream>
#include <iostream>
#include <sstream>
#include <cstdlib>
#include <cstring>
#include <ctime>
class ReduceSettings : public Settings {
public:
ReduceSettings() : filename(0), linenr(0), hang(false), maxtime(0) { }
const char *filename;
std::size_t linenr;
bool hang;
unsigned int maxtime;
};
class CppcheckExecutor : public ErrorLogger {
private:
CppCheck cppcheck;
std::string pattern;
bool foundLine;
std::time_t stopTime;
public:
explicit CppcheckExecutor(const ReduceSettings & settings)
: ErrorLogger()
, cppcheck(*this, false)
, foundLine(false)
, stopTime(0) {
if (!settings.hang)
pattern = ":" + MathLib::toString(settings.linenr) + "]";
cppcheck.settings() = settings;
}
bool run(const char filename[], unsigned int maxtime) {
foundLine = false;
stopTime = std::time(0) + maxtime;
cppcheck.check(filename);
return foundLine;
}
void reportOut(const std::string &/*outmsg*/) { }
void reportErr(const ErrorLogger::ErrorMessage &msg) {
if (!pattern.empty() && msg.toString(false).find(pattern) != std::string::npos) {
foundLine = true;
cppcheck.terminate();
}
}
void reportProgress(const std::string &/*filename*/, const char /*stage*/[], const std::size_t /*value*/) {
if (std::time(0) > stopTime) {
if (pattern.empty())
foundLine = true;
else
std::cerr << "timeout. You might want to use a longer --maxtime timeout" << std::endl;
std::cout << "terminate" << std::endl;
cppcheck.terminate();
}
}
};
static bool test(const ReduceSettings &settings, const std::vector<std::string> &filedata, const std::size_t line1, const std::size_t line2)
{
std::string path(settings.filename);
if (path.find_first_of("\\/") != std::string::npos)
path = path.erase(1 + path.find_last_of("\\/"));
else
path.clear();
const std::string tempfilename(path + "__temp__" + std::strrchr(settings.filename,'.'));
std::ofstream fout(tempfilename.c_str());
for (std::size_t i = 0; i < filedata.size(); i++)
fout << ((i>=line1 && i<=line2) ? "" : filedata[i]) << std::endl;
fout.close();
CppcheckExecutor cppcheck(settings);
return cppcheck.run(tempfilename.c_str(), settings.maxtime);
}
static bool test(const ReduceSettings &settings, const std::vector<std::string> &filedata, const std::size_t line)
{
return test(settings, filedata, line, line);
}
#ifdef GDB_HELPERS
static void printstr(const std::vector<std::string> &filedata, int i1, int i2)
{
std::cout << filedata.size();
for (int i = i1; i < i2; ++i)
std::cout << i << ":" << filedata[i] << std::endl;
}
#endif
static char getEndChar(const std::string &line)
{
std::size_t pos = line.find_last_not_of(" \t");
return (pos == std::string::npos) ? '\0' : line[pos];
}
static std::vector<std::string> readfile(const std::string &filename)
{
std::vector<std::string> filedata;
std::ifstream fin(filename.c_str());
std::string line;
bool blockComment = false;
while (std::getline(fin,line)) {
// replace various space characters with space
for (std::string::size_type pos = 0; pos < line.size(); ++pos) {
if (line[pos] & 0x80 || std::isspace(line[pos]))
line[pos] = ' ';
}
// remove block comments TODO: Handle /* inside strings
if (blockComment) {
if (line.find("*/") == std::string::npos)
line.clear();
else {
if (line.find("*/") + 2U == line.size())
line.clear();
else
line = line.substr(line.find("*/") + 2U);
blockComment = false;
}
}
while (!blockComment && line.find("/*") != std::string::npos) {
std::string::size_type pos = line.find("/*");
if (line.find("*/",pos) == std::string::npos) {
blockComment = true;
if (pos==0)
line.clear();
else
line = line.substr(0,pos);
} else {
blockComment = false;
line = line.erase(pos, 2U + line.find("*/", pos) - pos);
}
}
// Remove // comments
if (line.find("//") != std::string::npos)
line = line.substr(0, line.find("//"));
// empty line
if (line.find_first_not_of(" ") == std::string::npos)
line.clear();
else {
const std::string::size_type pos = line.find_first_not_of(" ");
// remove spaces before leading #
if (line[pos]=='#')
line = line.substr(pos);
}
// remove trailing spaces
while (!line.empty() && std::isspace(line[line.size()-1U]))
line = line.substr(0, line.size() - 1U);
filedata.push_back(line);
}
// put function declarations in a single line..
for (unsigned int linenr = 0U; linenr+1U < filedata.size(); ++linenr) {
// Does this look like start of a function declaration?
if (filedata[linenr].empty() ||
!std::isalpha(filedata[linenr][0U]) ||
getEndChar(filedata[linenr]) != ',' ||
filedata[linenr].find("(") == std::string::npos ||
filedata[linenr].find(")") != std::string::npos)
continue;
// Where does function declaration end?
unsigned int linenr2 = linenr + 1U;
while (linenr2 < filedata.size() &&
getEndChar(filedata[linenr2]) == ',' &&
filedata[linenr2].find("(") == std::string::npos &&
filedata[linenr2].find(")") == std::string::npos)
++linenr2;
// If function declaration looks correct.. simplify it
if (linenr2 < filedata.size() &&
getEndChar(filedata[linenr2]) == ';' &&
filedata[linenr2].find("(") == std::string::npos &&
filedata[linenr2].size() > 2U &&
filedata[linenr2].find(")") == filedata[linenr2].size() - 2U) {
std::string code;
for (unsigned int i = linenr; i <= linenr2; i++) {
code = code + filedata[i];
filedata[i].clear();
}
filedata[linenr] = code;
}
}
// put #define statements in a single line..
for (unsigned int linenr = 0U; linenr+1U < filedata.size(); ++linenr) {
// is this a multiline #define statement?
if (filedata[linenr].compare(0,8,"#define ")!=0 || getEndChar(filedata[linenr])!='\\')
continue;
// where does statement end?
unsigned int linenr2 = linenr + 1U;
while (linenr2 < filedata.size() && getEndChar(filedata[linenr2]) == '\\')
++linenr2;
// simplify
if (linenr2 < filedata.size()) {
std::string code;
for (unsigned int i = linenr; i <= linenr2; i++) {
code = code + filedata[i].substr(0,filedata[i].size() - 1U);
filedata[i].clear();
}
filedata[linenr] = code;
}
}
return filedata;
}
static bool removeMacrosInGlobalScope(const ReduceSettings &settings, std::vector<std::string> &filedata)
{
bool changed = false;
// Remove macros in global scope..
for (std::size_t i = 0; i < filedata.size(); i++) {
const std::string line = (i==0U&&filedata.empty()) ? std::string(";") : filedata[i];
if (line.empty())
continue;
const char startChar = line[0];
const char endChar = line[line.size() - 1U];
bool decl = bool(!std::isspace(startChar) && (endChar=='}' || endChar==';'));
while (decl) {
decl = false; // might be set to true below
std::size_t pos = i + 1U;
while (pos < filedata.size() && filedata[pos].empty())
++pos;
if (pos >= filedata.size())
break;
const std::string &s = filedata[pos]; // possible macro : make sure it matches '[A-Z0-9_]+\(.*\)'
std::string::size_type si = 0;
while (si < s.size() && ((s[si]>='A' && s[si]<='Z') || (i>0 && s[si]>='0' && s[si]<='9') || s[si]=='_'))
si++;
while (si < s.size() && std::isspace(s[si]))
si++;
if (si == 0U || si >= s.size() || s[si] != '(')
break;
si++;
unsigned int parlevel = 1;
while (si < s.size() && parlevel >= 1U) {
if (s[si] == '(')
++parlevel;
else if (s[si] == ')')
--parlevel;
si++;
}
if (!(parlevel == 0U && si == s.size()))
break;
if (test(settings, filedata, pos)) {
decl = true;
filedata[pos].clear();
std::cout << "removed declaration at line " << pos << std::endl;
changed = true;
} else {
std::cout << "kept declaration at line " << pos << std::endl;
}
}
}
return changed;
}
static bool removeBlocksOfCode(const ReduceSettings &settings, std::vector<std::string> &filedata)
{
bool changed = false;
// Remove blocks of code..
for (std::size_t i = 0; i < filedata.size(); i++) {
const std::string line = (i==0U&&filedata.empty()) ? std::string(";") : filedata[i];
if (line.empty())
continue;
const char startChar = line[0];
const char endChar = line[line.size() - 1U];
// some kind of single line declaration
if (std::isalpha(startChar) && endChar==';') {
if (test(settings, filedata, i)) {
filedata[i].clear();
std::cout << "removed declaration at line " << i << std::endl;
changed = true;
} else {
std::cout << "kept declaration at line " << i << std::endl;
}
}
// remove a function body below a '}'
bool decl = bool(!std::isspace(startChar) && (endChar=='}' || endChar==';'));
while (decl) {
decl = false; // might be set to true below
std::size_t pos = ++i;
while (pos < filedata.size() && filedata[pos].empty())
++pos;
if ((pos+2U < filedata.size()) && (std::isalpha(filedata[pos].at(0)))) {
// does code block start with "{"
std::size_t pos2 = pos;
// struct X { ..
if (filedata[pos].find_first_of("();}") == std::string::npos && filedata[pos].at(filedata[pos].size()-1U) == '{') {
}
// function declaration ..
else {
if (filedata[pos].find("(") != std::string::npos && filedata[pos].find(")")==std::string::npos) {
++pos2;
while (pos2+2U < filedata.size() && !filedata[pos2].empty() && filedata[pos2].find_first_of("(){}") == std::string::npos)
++pos2;
if (filedata[pos2].find_first_of("({}")!=std::string::npos || filedata[pos2].find(")") == std::string::npos)
break;
}
pos2++;
if (pos2 < filedata.size() && !filedata[pos2].empty() && filedata[pos2].at(filedata[pos2].find_first_not_of(" ")) == ':') {
pos2++;
while (pos2 < filedata.size() && !filedata[pos2].empty() && filedata[pos2].at(filedata[pos2].find_first_not_of(" ")) == ',')
pos2++;
}
if (pos2+2U >= filedata.size() || filedata[pos2] != "{")
break;
}
pos2++;
// find end of block..
int level = 0;
while ((pos2 < filedata.size()) && (filedata[pos2].empty() || std::isspace(filedata[pos2].at(0)) || (std::isalpha(filedata[pos2].at(0)) && filedata[pos2].at(filedata[pos2].size()-1U) == ':') || filedata[pos2].compare(0,3,"#if")==0 || filedata[pos2].compare(0,3,"#el")==0 || filedata[pos2]=="#endif")) {
if (filedata[pos2].compare(0,3,"#if") == 0)
++level;
else if (filedata[pos2] == "#endif")
--level;
++pos2;
}
if (level != 0)
break;
// does block of code end with a '}'
if ((pos2 < filedata.size()) && (filedata[pos2] == "}" || filedata[pos2] == "};")) {
if (test(settings, filedata, pos, pos2)) {
for (i = pos; i <= pos2; i++)
filedata[i].clear();
std::cout << "removed block of code at lines " << pos << "-" << pos2 << std::endl;
decl = true;
changed = true;
} else {
std::cout << "kept block of code at lines " << pos << "-" << pos2 << std::endl;
}
}
}
}
}
return changed;
}
static bool removeClassAndStructMembers(const ReduceSettings &settings, std::vector<std::string> &filedata)
{
bool changed = false;
// remove class and struct members
for (std::size_t i = 0; i + 2U < filedata.size(); i++) {
if ((filedata[i].compare(0,6,"class ")==0 || filedata[i].compare(0,7,"struct ")==0) && filedata[i].find(";")==std::string::npos && filedata[i+1]=="{") {
bool decl = true;
for (std::size_t pos = i+2U; pos < filedata.size(); pos++) {
const std::string line = filedata[pos];
if (line.empty())
continue;
// count { and }
unsigned int c1=0, c2=0;
for (std::string::size_type c = 0; c < line.size(); c++) {
if (line[c] == '{')
++c1;
else if (line[c] == '}')
++c2;
}
if (c2>0 && (c1!=1 || c2!=1))
break;
const char endChar = line[line.size() - 1U];
if (decl && (endChar == ';' || (c1==1 && c2==1 && endChar=='}'))) {
if (test(settings, filedata, pos)) {
std::cout << "removed struct/class declaration at line " << pos << std::endl;
filedata[pos].clear();
changed = true;
} else {
std::cout << "kept struct/class declaration at line " << pos << std::endl;
}
}
if (line[0] != '#') {
if (decl && std::isalpha(line[0]) && endChar == ':') {
decl = true;
for (std::string::size_type linepos = 0U; linepos+1U < line.size(); ++linepos)
decl &= (std::isspace(line[linepos]) || std::isalpha(line[linepos]));
} else
decl = bool(endChar == ';' || endChar == '}');
}
}
}
}
return changed;
}
static bool removeIfEndIf(const ReduceSettings &settings, std::vector<std::string> &filedata)
{
bool changed = false;
// #if - #endif
for (std::size_t i = 0; i < filedata.size(); ++i) {
while (filedata[i].compare(0,3,"#if") == 0) {
std::size_t pos2 = i + 1;
while (pos2 < filedata.size() && filedata[pos2].empty())
++pos2;
if (pos2 < filedata.size() && filedata[pos2] == "#endif") {
if (test(settings, filedata, i, pos2)) {
std::cout << "Removed #if - #endif block at lines " << i << "-" << pos2 << std::endl;
filedata[i].clear();
filedata[pos2].clear();
i = 0;
changed = true;
} else {
std::cout << "Kept #if - #endif block at lines " << i << "-" << pos2 << std::endl;
break;
}
} else {
break;
}
}
}
// #ifndef UNUSED_ID
for (std::size_t i = 0; i < filedata.size(); ++i) {
if (filedata[i].compare(0,8,"#ifndef ") == 0) {
bool erase = true;
bool def = false;
const std::string id(filedata[i].substr(8));
for (std::size_t i2 = 0; i2 < filedata.size(); i2++) {
if (i2 == i)
continue;
if (filedata[i2].find(id) != std::string::npos) {
if (!def && filedata[i2].compare(0,8,"#define ")==0)
def = true;
else
erase = false;
}
}
if (erase) {
unsigned int level = 0;
for (std::size_t i2 = i + 1U; i2 < filedata.size(); i2++) {
if (filedata[i2].compare(0,3,"#if")==0)
++level;
else if (filedata[i2] == "#else")
break;
else if (filedata[i2] == "#endif") {
if (level > 0)
--level;
else {
std::vector<std::string> filedata2(filedata);
filedata2[i].clear();
filedata2[i2].clear();
if (test(settings, filedata2, i)) {
std::cout << "Removed #ifndef at line " << i << std::endl;
filedata.swap(filedata2);
changed = true;
} else {
std::cout << "Kept #ifndef at line " << i << std::endl;
break;
}
break;
}
}
}
}
}
}
return changed;
}
static bool removeUnusedDefines(const ReduceSettings &settings, std::vector<std::string> &filedata)
{
bool changed = false;
for (std::size_t i = 0; i < filedata.size(); ++i) {
if (filedata[i].compare(0,8,"#define ")==0 && filedata[i].find("\\")==std::string::npos) {
// Try to remove macro..
if (test(settings, filedata, i)) {
std::cout << "Removed #define at line " << i << std::endl;
filedata[i].clear();
changed = true;
} else {
std::cout << "Kept #define at line " << i << std::endl;
}
}
}
return changed;
}
static bool removeSingleLines(const ReduceSettings &settings, std::vector<std::string> &filedata)
{
bool changed = false;
bool decl = true;
for (std::size_t i = 0; i < filedata.size(); ++i) {
const std::string line = filedata[i];
if (line.empty())
continue;
const char endChar = line[line.size() - 1U];
if (decl && endChar == ';') {
if (test(settings, filedata, i)) {
std::cout << "Removed statement at line " << i << std::endl;
filedata[i].clear();
} else {
std::cout << "Kept statement at line " << i << std::endl;
}
} else {
decl = bool (endChar == ';' || endChar == '{' || endChar == '}');
}
}
return changed;
}
// Try to remove stuff from statements
static bool cleanupStatements(const ReduceSettings &settings, std::vector<std::string> &filedata)
{
bool changed = false;
for (std::size_t i = 0; i < filedata.size(); ++i) {
std::string line = filedata[i];
if (line.empty())
continue;
for (std::string::size_type pos = 0U; pos < line.size(); ++pos) {
// function parameter..
if (std::strchr("(,", line[pos])) {
const std::string::size_type pos1 = (line[pos] == ',') ? pos : (pos + 1U);
std::string::size_type pos2 = pos + 1;
while (pos2 < line.size() && std::isspace(line[pos2]))
++pos2;
while (pos2 < line.size() && (std::isalnum(line[pos2]) || line[pos2]=='_'))
++pos2;
while (pos2 < line.size() && std::isspace(line[pos2]))
++pos2;
if (pos2 >= pos+2U && pos2<line.size() && std::strchr(",)", line[pos2])) {
const std::string backup(filedata[i]);
filedata[i] = line.substr(0,pos) + line.substr(pos2);
if (test(settings, filedata, ~0U)) {
std::cout << "Removed function parameter at line " << i << ", column " << pos1 << std::endl;
line = filedata[i];
changed = true;
continue;
} else {
std::cout << "Kept function parameter at line " << i << ", column " << pos1 << std::endl;
filedata[i] = backup;
}
}
}
// cast
if (line[pos] == '=' || line[pos] == '(') {
const std::string::size_type pos1 = pos + 1;
std::string::size_type pos2 = pos + 1;
while (pos2 < line.size() && std::isspace(line[pos2]))
++pos2;
if (pos2>=line.size() || line[pos2]!='(')
continue;
pos2++;
while (pos2 < line.size() && std::isalpha(line[pos2]))
++pos2;
while (pos2 < line.size() && std::isspace(line[pos2]))
++pos2;
if (pos2>=line.size() || line[pos2]!='*')
continue;
while (pos2 < line.size() && line[pos2]=='*')
++pos2;
if (pos2<line.size() && line[pos2]==')') {
pos2++;
const std::string backup(filedata[i]);
filedata[i] = line.substr(0,pos1) + line.substr(pos2);
if (test(settings, filedata, ~0U)) {
std::cout << "Removed cast at line " << i << ", column " << pos1 << std::endl;
line = filedata[i];
changed = true;
} else {
std::cout << "Kept cast at line " << i << ", column " << pos1 << std::endl;
filedata[i] = backup;
}
}
}
}
}
return changed;
}
static bool tryLoadLibrary(Library& destination, const char* basepath, const char* filename)
{
const Library::Error err = destination.load(basepath, filename);
if (err.errorcode == Library::UNKNOWN_ELEMENT)
std::cout << "reduce: Found unknown elements in configuration file '" << filename << "': " << err.reason << std::endl;
else if (err.errorcode != Library::OK) {
std::string errmsg;
switch (err.errorcode) {
case Library::OK:
break;
case Library::FILE_NOT_FOUND:
errmsg = "File not found";
break;
case Library::BAD_XML:
errmsg = "Bad XML";
break;
case Library::UNKNOWN_ELEMENT:
errmsg = "Unexpected element";
break;
case Library::MISSING_ATTRIBUTE:
errmsg = "Missing attribute";
break;
case Library::BAD_ATTRIBUTE_VALUE:
errmsg = "Bad attribute value";
break;
case Library::UNSUPPORTED_FORMAT:
errmsg = "File is of unsupported format version";
break;
case Library::DUPLICATE_PLATFORM_TYPE:
errmsg = "Duplicate platform type";
break;
case Library::PLATFORM_TYPE_REDEFINED:
errmsg = "Platform type redefined";
break;
}
if (!err.reason.empty())
errmsg += " '" + err.reason + "'";
std::cout << "reduce: Failed to load library configuration file '" << filename << "'. " << errmsg << std::endl;
return false;
}
return true;
}
int main(int argc, char *argv[])
{
std::cout << "cppcheck tool that reduce code for a hang / false positive" << std::endl;
bool print = false;
ReduceSettings settings;
settings.maxtime = 300; // default timeout = 5 minutes
bool def = false;
bool maxconfigs = false;
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "--stdout") == 0)
print = true;
else if (strcmp(argv[i], "--hang") == 0)
settings.hang = true;
else if (strncmp(argv[i],"-D", 2) == 0) {
if (!settings.userDefines.empty())
settings.userDefines += ";";
if ((strcmp(argv[i], "-D") == 0) && (i+1<argc))
settings.userDefines += argv[++i];
else
settings.userDefines += argv[i] + 2;
def = true;
} else if (std::strncmp(argv[i], "-I", 2) == 0) {
std::string path;
if ((std::strcmp(argv[i], "-I") == 0) && (i+1<argc))
path = argv[++i];
else
path = argv[i] + 2;
if (!path.empty()) {
path = Path::fromNativeSeparators(path);
path = Path::removeQuotationMarks(path);
// If path doesn't end with / or \, add it
if (path[path.length()-1] != '/')
path += '/';
settings.includePaths.push_back(path);
}
} else if (strncmp(argv[i], "--maxtime=", 10) == 0)
settings.maxtime = std::atoi(argv[i] + 10);
else if (strncmp(argv[i],"--cfg=",6)==0) {
if (!settings.userDefines.empty())
settings.userDefines += ";";
settings.userDefines += argv[i] + 6;
} else if (std::strncmp(argv[i], "--platform=", 11) == 0) {
std::string platform(11+argv[i]);
if (platform == "win32A")
settings.platform(Settings::Win32A);
else if (platform == "win32W")
settings.platform(Settings::Win32W);
else if (platform == "win64")
settings.platform(Settings::Win64);
else if (platform == "unix32")
settings.platform(Settings::Unix32);
else if (platform == "unix64")
settings.platform(Settings::Unix64);
else {
std::cerr << "unrecognized platform: " << platform << std::endl;
return EXIT_FAILURE;
}
} else if (std::strcmp(argv[i], "--debug-warnings") == 0)
settings.debugwarnings = true;
else if (std::strcmp(argv[i], "-f") == 0 || std::strcmp(argv[i], "--force") == 0)
settings.force = true;
else if (std::strncmp(argv[i], "--enable=", 9) == 0) {
std::string errmsg = settings.addEnabled(argv[i] + 9);
if (!errmsg.empty()) {
errmsg.erase(0, 11); // erase "cppcheck: " from message
std::cerr << errmsg << std::endl;
return EXIT_FAILURE;
}
// when "style" is enabled, also enable "warning", "performance" and "portability"
if (settings.isEnabled(Settings::STYLE)) {
settings.addEnabled("warning");
settings.addEnabled("performance");
settings.addEnabled("portability");
}
} else if (std::strcmp(argv[i], "--inconclusive") == 0)
settings.inconclusive = true;
else if (std::strncmp(argv[i], "--max-configs=", 14) == 0) {
settings.force = false;
std::istringstream iss(14+argv[i]);
if (!(iss >> settings.maxConfigs)) {
std::cerr << "argument to '--max-configs=' is not a number." << std::endl;
return EXIT_FAILURE;
}
if (settings.maxConfigs < 1) {
std::cerr << "argument to '--max-configs=' must be greater than 0." << std::endl;
return EXIT_FAILURE;
}
maxconfigs = true;
} else if (std::strncmp(argv[i], "--library=", 10) == 0) {
if (!tryLoadLibrary(settings.library, argv[0], argv[i]+10))
return EXIT_FAILURE;
} else if (std::strcmp(argv[i], "--std=posix") == 0) {
settings.standards.posix = true;
} else if (std::strcmp(argv[i], "--std=c89") == 0) {
settings.standards.c = Standards::C89;
} else if (std::strcmp(argv[i], "--std=c99") == 0) {
settings.standards.c = Standards::C99;
} else if (std::strcmp(argv[i], "--std=c11") == 0) {
settings.standards.c = Standards::C11;
} else if (std::strcmp(argv[i], "--std=c++03") == 0) {
settings.standards.cpp = Standards::CPP03;
} else if (std::strcmp(argv[i], "--std=c++11") == 0) {
settings.standards.cpp = Standards::CPP11;
} else if (settings.filename==nullptr && strchr(argv[i],'.'))
settings.filename = argv[i];
else if (settings.linenr == 0U && MathLib::isInt(argv[i]))
settings.linenr = std::atoi(argv[i]);
else {
std::cerr << "invalid option " << argv[i] << std::endl;
return EXIT_FAILURE;
}
}
if (def && !settings.force && !maxconfigs)
settings.maxConfigs = 1U;
if (settings.force)
settings.maxConfigs = ~0U;
if ((!settings.hang && settings.linenr == 0U) || settings.filename == nullptr) {
std::cerr << "Syntax:" << std::endl
<< argv[0] << " [--stdout] [--cfg=X] [--hang] [--maxtime=60] [-D define] [-I includepath] [--force] [--enable=<id>] [--inconclusive] [--debug-warnings] [--max-configs=<limit>] [--platform=<type>] [--library=<cfg>] [--std=<id>] filename [linenr]" << std::endl;
return EXIT_FAILURE;
}
std::cout << "make sure " << (settings.hang ? "hang" : "false positive") << " can be reproduced" << std::endl;
// Execute Cppcheck on the file..
{
CppcheckExecutor cppcheck(settings);
if (!cppcheck.run(settings.filename, settings.maxtime)) {
std::cerr << "Can't reproduce false positive at line " << settings.linenr << std::endl;
return EXIT_FAILURE;
}
}
// Read file..
std::vector<std::string> filedata(readfile(settings.filename));
// Write resulting code..
if (!test(settings, filedata, ~0)) {
std::cerr << "Cleanup failed." << std::endl;
return EXIT_FAILURE;
}
// Remove includes..
std::set<std::string> headers;
for (std::size_t i = 0; i < filedata.size(); i++) {
if (filedata[i].compare(0,8,"#include")==0) {
if (test(settings, filedata, i)) {
std::cout << "removed #include : " << filedata[i] << std::endl;
filedata[i].clear();
} else {
std::string header = filedata[i];
header = header.substr(1U + header.find_first_of("\"<"));
header = header.erase(header.find_last_of("\">"));
if (headers.find(header) != headers.end()) {
std::cerr << "Failed to reduce headers" << std::endl;
return EXIT_FAILURE;
}
headers.insert(header);
std::string path(settings.filename);
if (path.find_first_of("\\/") != std::string::npos)
path = path.erase(1 + path.find_last_of("\\/"));
else
path.clear();
std::cout << "expand #include : " << (path+header) << std::endl;
std::vector<std::string> data(readfile(path+header));
if (!data.empty()) {
filedata[i].clear();
filedata.insert(filedata.begin()+i, data.begin(), data.end());
settings.linenr += data.size();
}
}
}
}
bool changed = true;
while (changed) {
changed = false;
changed |= removeMacrosInGlobalScope(settings,filedata);
changed |= removeBlocksOfCode(settings,filedata);
changed |= removeClassAndStructMembers(settings,filedata);
changed |= removeIfEndIf(settings,filedata);
changed |= removeUnusedDefines(settings,filedata);
if (settings.hang) {
changed |= removeSingleLines(settings,filedata);
changed |= cleanupStatements(settings,filedata);
}
}
// Write resulting code..
{
const std::string outfilename(std::string("__out__") + std::strrchr(settings.filename,'.'));
std::ofstream fout;
if (!print)
fout.open(outfilename.c_str());
std::ostream &os = print ? std::cout : fout;
for (std::size_t i = 0; i < filedata.size(); i++) {
if (!filedata[i].empty())
os << filedata[i] << std::endl;
}
}
return EXIT_SUCCESS;
}