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test.cpp
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test.cpp
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/*
* simplecpp - A simple and high-fidelity C/C++ preprocessor library
* Copyright (C) 2016-2023 simplecpp team
*/
#include "simplecpp.h"
#include <cctype>
#include <cstdlib>
#include <cstring>
#include <exception>
#include <iostream>
#include <map>
#include <sstream>
#include <stdexcept>
#include <string>
#include <vector>
#define STRINGIZE_(x) #x
#define STRINGIZE(x) STRINGIZE_(x)
static int numberOfFailedAssertions = 0;
#define ASSERT_EQUALS(expected, actual) (assertEquals((expected), (actual), __LINE__))
#define ASSERT_THROW_EQUALS(stmt, e, expected) do { try { stmt; assertThrowFailed(__LINE__); } catch (const e& ex) { assertEquals((expected), (ex.what()), __LINE__); } } while(false)
static std::string pprint(const std::string &in)
{
std::string ret;
for (std::string::size_type i = 0; i < in.size(); ++i) {
if (in[i] == '\n')
ret += "\\n";
ret += in[i];
}
return ret;
}
static int assertEquals(const std::string &expected, const std::string &actual, int line)
{
if (expected != actual) {
numberOfFailedAssertions++;
std::cerr << "------ assertion failed ---------" << std::endl;
std::cerr << "line " << line << std::endl;
std::cerr << "expected:" << pprint(expected) << std::endl;
std::cerr << "actual:" << pprint(actual) << std::endl;
}
return (expected == actual);
}
static int assertEquals(const long long &expected, const long long &actual, int line)
{
return assertEquals(std::to_string(expected), std::to_string(actual), line);
}
static void assertThrowFailed(int line)
{
numberOfFailedAssertions++;
std::cerr << "------ assertion failed ---------" << std::endl;
std::cerr << "line " << line << std::endl;
std::cerr << "exception not thrown" << std::endl;
}
static void testcase(const std::string &name, void (*f)(), int argc, char * const *argv)
{
if (argc == 1)
f();
else {
for (int i = 1; i < argc; i++) {
if (name == argv[i])
f();
}
}
}
#define TEST_CASE(F) (testcase(#F, F, argc, argv))
static simplecpp::TokenList makeTokenList(const char code[], std::size_t size, std::vector<std::string> &filenames, const std::string &filename=std::string(), simplecpp::OutputList *outputList=nullptr)
{
std::istringstream istr(std::string(code, size));
return simplecpp::TokenList(istr,filenames,filename,outputList);
}
static simplecpp::TokenList makeTokenList(const char code[], std::vector<std::string> &filenames, const std::string &filename=std::string(), simplecpp::OutputList *outputList=nullptr)
{
return makeTokenList(code, strlen(code), filenames, filename, outputList);
}
static std::string readfile(const char code[], simplecpp::OutputList *outputList=nullptr)
{
std::vector<std::string> files;
return makeTokenList(code,files,std::string(),outputList).stringify();
}
static std::string readfile(const char code[], std::size_t size, simplecpp::OutputList *outputList=nullptr)
{
std::vector<std::string> files;
return makeTokenList(code,size,files,std::string(),outputList).stringify();
}
static std::string preprocess(const char code[], const simplecpp::DUI &dui, simplecpp::OutputList *outputList)
{
std::vector<std::string> files;
std::map<std::string, simplecpp::TokenList*> filedata;
simplecpp::TokenList tokens = makeTokenList(code,files);
tokens.removeComments();
simplecpp::TokenList tokens2(files);
simplecpp::preprocess(tokens2, tokens, files, filedata, dui, outputList);
return tokens2.stringify();
}
static std::string preprocess(const char code[])
{
return preprocess(code, simplecpp::DUI(), nullptr);
}
static std::string preprocess(const char code[], const simplecpp::DUI &dui)
{
return preprocess(code, dui, nullptr);
}
static std::string preprocess(const char code[], simplecpp::OutputList *outputList)
{
return preprocess(code, simplecpp::DUI(), outputList);
}
static std::string toString(const simplecpp::OutputList &outputList)
{
std::ostringstream ostr;
for (const simplecpp::Output &output : outputList) {
ostr << "file" << output.location.fileIndex << ',' << output.location.line << ',';
switch (output.type) {
case simplecpp::Output::Type::ERROR:
ostr << "#error,";
break;
case simplecpp::Output::Type::WARNING:
ostr << "#warning,";
break;
case simplecpp::Output::Type::MISSING_HEADER:
ostr << "missing_header,";
break;
case simplecpp::Output::Type::INCLUDE_NESTED_TOO_DEEPLY:
ostr << "include_nested_too_deeply,";
break;
case simplecpp::Output::Type::SYNTAX_ERROR:
ostr << "syntax_error,";
break;
case simplecpp::Output::Type::PORTABILITY_BACKSLASH:
ostr << "portability_backslash,";
break;
case simplecpp::Output::Type::UNHANDLED_CHAR_ERROR:
ostr << "unhandled_char_error,";
break;
case simplecpp::Output::Type::EXPLICIT_INCLUDE_NOT_FOUND:
ostr << "explicit_include_not_found,";
break;
case simplecpp::Output::Type::FILE_NOT_FOUND:
ostr << "file_not_found,";
break;
case simplecpp::Output::Type::DUI_ERROR:
ostr << "dui_error,";
break;
}
ostr << output.msg << '\n';
}
return ostr.str();
}
static void backslash()
{
// <backslash><space><newline> preprocessed differently
simplecpp::OutputList outputList;
readfile("//123 \\\n456", &outputList);
ASSERT_EQUALS("", toString(outputList));
readfile("//123 \\ \n456", &outputList);
ASSERT_EQUALS("file0,1,portability_backslash,Combination 'backslash space newline' is not portable.\n", toString(outputList));
outputList.clear();
readfile("#define A \\\n123", &outputList);
ASSERT_EQUALS("", toString(outputList));
readfile("#define A \\ \n123", &outputList);
ASSERT_EQUALS("file0,1,portability_backslash,Combination 'backslash space newline' is not portable.\n", toString(outputList));
}
static void builtin()
{
ASSERT_EQUALS("\"\" 1 0", preprocess("__FILE__ __LINE__ __COUNTER__"));
ASSERT_EQUALS("\n\n3", preprocess("\n\n__LINE__"));
ASSERT_EQUALS("\n\n0", preprocess("\n\n__COUNTER__"));
ASSERT_EQUALS("\n\n0 1", preprocess("\n\n__COUNTER__ __COUNTER__"));
ASSERT_EQUALS("\n0 + 0", preprocess("#define A(c) c+c\n"
"A(__COUNTER__)\n"));
ASSERT_EQUALS("\n0 + 0 + 1", preprocess("#define A(c) c+c+__COUNTER__\n"
"A(__COUNTER__)\n"));
}
static std::string testConstFold(const char code[])
{
try {
std::vector<std::string> files;
simplecpp::TokenList expr = makeTokenList(code, files);
expr.constFold();
return expr.stringify();
} catch (std::exception &) {
return "exception";
}
}
static void characterLiteral()
{
ASSERT_EQUALS('A', simplecpp::characterLiteralToLL("'A'"));
ASSERT_EQUALS('\'', simplecpp::characterLiteralToLL("'\\''"));
ASSERT_EQUALS('\"', simplecpp::characterLiteralToLL("'\\\"'"));
ASSERT_EQUALS('\?', simplecpp::characterLiteralToLL("'\\?'"));
ASSERT_EQUALS('\\', simplecpp::characterLiteralToLL("'\\\\'"));
ASSERT_EQUALS('\a', simplecpp::characterLiteralToLL("'\\a'"));
ASSERT_EQUALS('\b', simplecpp::characterLiteralToLL("'\\b'"));
ASSERT_EQUALS('\f', simplecpp::characterLiteralToLL("'\\f'"));
ASSERT_EQUALS('\n', simplecpp::characterLiteralToLL("'\\n'"));
ASSERT_EQUALS('\r', simplecpp::characterLiteralToLL("'\\r'"));
ASSERT_EQUALS('\t', simplecpp::characterLiteralToLL("'\\t'"));
ASSERT_EQUALS('\v', simplecpp::characterLiteralToLL("'\\v'"));
// GCC extension for ESC character
ASSERT_EQUALS(0x1b, simplecpp::characterLiteralToLL("'\\e'"));
ASSERT_EQUALS(0x1b, simplecpp::characterLiteralToLL("'\\E'"));
// more obscure GCC extensions
ASSERT_EQUALS('(', simplecpp::characterLiteralToLL("'\\('"));
ASSERT_EQUALS('[', simplecpp::characterLiteralToLL("'\\['"));
ASSERT_EQUALS('{', simplecpp::characterLiteralToLL("'\\{'"));
ASSERT_EQUALS('%', simplecpp::characterLiteralToLL("'\\%'"));
ASSERT_EQUALS('\0', simplecpp::characterLiteralToLL("'\\0'"));
ASSERT_EQUALS('\1', simplecpp::characterLiteralToLL("'\\1'"));
ASSERT_EQUALS('\10', simplecpp::characterLiteralToLL("'\\10'"));
ASSERT_EQUALS('\010', simplecpp::characterLiteralToLL("'\\010'"));
ASSERT_EQUALS('\377', simplecpp::characterLiteralToLL("'\\377'"));
ASSERT_EQUALS('\x0', simplecpp::characterLiteralToLL("'\\x0'"));
ASSERT_EQUALS('\x10', simplecpp::characterLiteralToLL("'\\x10'"));
ASSERT_EQUALS('\xff', simplecpp::characterLiteralToLL("'\\xff'"));
ASSERT_EQUALS('\u0012', simplecpp::characterLiteralToLL("'\\u0012'"));
ASSERT_EQUALS('\U00000012', simplecpp::characterLiteralToLL("'\\U00000012'"));
ASSERT_EQUALS((static_cast<unsigned int>(static_cast<unsigned char>('b')) << 8) | static_cast<unsigned char>('c'), simplecpp::characterLiteralToLL("'bc'"));
ASSERT_EQUALS((static_cast<unsigned int>(static_cast<unsigned char>('\x23')) << 8) | static_cast<unsigned char>('\x45'), simplecpp::characterLiteralToLL("'\\x23\\x45'"));
ASSERT_EQUALS((static_cast<unsigned int>(static_cast<unsigned char>('\11')) << 8) | static_cast<unsigned char>('\222'), simplecpp::characterLiteralToLL("'\\11\\222'"));
ASSERT_EQUALS((static_cast<unsigned int>(static_cast<unsigned char>('\a')) << 8) | static_cast<unsigned char>('\b'), simplecpp::characterLiteralToLL("'\\a\\b'"));
if (sizeof(int) <= 4)
ASSERT_EQUALS(-1, simplecpp::characterLiteralToLL("'\\xff\\xff\\xff\\xff'"));
else
ASSERT_EQUALS(0xffffffff, simplecpp::characterLiteralToLL("'\\xff\\xff\\xff\\xff'"));
ASSERT_EQUALS('A', simplecpp::characterLiteralToLL("u8'A'"));
ASSERT_EQUALS('A', simplecpp::characterLiteralToLL("u'A'"));
ASSERT_EQUALS('A', simplecpp::characterLiteralToLL("L'A'"));
ASSERT_EQUALS('A', simplecpp::characterLiteralToLL("U'A'"));
ASSERT_EQUALS(0xff, simplecpp::characterLiteralToLL("u8'\\xff'"));
ASSERT_EQUALS(0xff, simplecpp::characterLiteralToLL("u'\\xff'"));
ASSERT_EQUALS(0xff, simplecpp::characterLiteralToLL("L'\\xff'"));
ASSERT_EQUALS(0xff, simplecpp::characterLiteralToLL("U'\\xff'"));
ASSERT_EQUALS(0xfedc, simplecpp::characterLiteralToLL("u'\\xfedc'"));
ASSERT_EQUALS(0xfedcba98, simplecpp::characterLiteralToLL("L'\\xfedcba98'"));
ASSERT_EQUALS(0xfedcba98, simplecpp::characterLiteralToLL("U'\\xfedcba98'"));
ASSERT_EQUALS(0x12, simplecpp::characterLiteralToLL("u8'\\u0012'"));
ASSERT_EQUALS(0x1234, simplecpp::characterLiteralToLL("u'\\u1234'"));
ASSERT_EQUALS(0x00012345, simplecpp::characterLiteralToLL("L'\\U00012345'"));
ASSERT_EQUALS(0x00012345, simplecpp::characterLiteralToLL("U'\\U00012345'"));
#ifdef __GNUC__
// BEGIN Implementation-specific results
ASSERT_EQUALS(static_cast<int>('AB'), simplecpp::characterLiteralToLL("'AB'"));
ASSERT_EQUALS(static_cast<int>('ABC'), simplecpp::characterLiteralToLL("'ABC'"));
ASSERT_EQUALS(static_cast<int>('ABCD'), simplecpp::characterLiteralToLL("'ABCD'"));
ASSERT_EQUALS('\134t', simplecpp::characterLiteralToLL("'\\134t'")); // cppcheck ticket #7452
// END Implementation-specific results
#endif
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("'\\9'"), std::runtime_error, "invalid escape sequence");
// Input is manually encoded to (escaped) UTF-8 byte sequences
// to avoid dependence on source encoding used for this file
ASSERT_EQUALS(0xb5, simplecpp::characterLiteralToLL("U'\302\265'"));
ASSERT_EQUALS(0x157, simplecpp::characterLiteralToLL("U'\305\227'"));
ASSERT_EQUALS(0xff0f, simplecpp::characterLiteralToLL("U'\357\274\217'"));
ASSERT_EQUALS(0x3042, simplecpp::characterLiteralToLL("U'\343\201\202'"));
ASSERT_EQUALS(0x13000, simplecpp::characterLiteralToLL("U'\360\223\200\200'"));
ASSERT_EQUALS(0xb5, simplecpp::characterLiteralToLL("L'\302\265'"));
ASSERT_EQUALS(0x157, simplecpp::characterLiteralToLL("L'\305\227'"));
ASSERT_EQUALS(0xff0f, simplecpp::characterLiteralToLL("L'\357\274\217'"));
ASSERT_EQUALS(0x3042, simplecpp::characterLiteralToLL("L'\343\201\202'"));
ASSERT_EQUALS(0x13000, simplecpp::characterLiteralToLL("L'\360\223\200\200'"));
ASSERT_EQUALS(0xb5, simplecpp::characterLiteralToLL("u'\302\265'"));
ASSERT_EQUALS(0x157, simplecpp::characterLiteralToLL("u'\305\227'"));
ASSERT_EQUALS(0xff0f, simplecpp::characterLiteralToLL("u'\357\274\217'"));
ASSERT_EQUALS(0x3042, simplecpp::characterLiteralToLL("u'\343\201\202'"));
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("u'\360\223\200\200'"), std::runtime_error, "code point too large");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("u8'\302\265'"), std::runtime_error, "code point too large");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("u8'\305\227'"), std::runtime_error, "code point too large");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("u8'\357\274\217'"), std::runtime_error, "code point too large");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("u8'\343\201\202'"), std::runtime_error, "code point too large");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("u8'\360\223\200\200'"), std::runtime_error, "code point too large");
ASSERT_EQUALS('\x89', simplecpp::characterLiteralToLL("'\x89'"));
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\x89'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xf4\x90\x80\x80'"), std::runtime_error, "code point too large");
// following examples based on https://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt
ASSERT_EQUALS(0x80, simplecpp::characterLiteralToLL("U'\xc2\x80'"));
ASSERT_EQUALS(0x800, simplecpp::characterLiteralToLL("U'\xe0\xa0\x80'"));
ASSERT_EQUALS(0x10000, simplecpp::characterLiteralToLL("U'\xf0\x90\x80\x80'"));
ASSERT_EQUALS(0x7f, simplecpp::characterLiteralToLL("U'\x7f'"));
ASSERT_EQUALS(0x7ff, simplecpp::characterLiteralToLL("U'\xdf\xbf'"));
ASSERT_EQUALS(0xffff, simplecpp::characterLiteralToLL("U'\xef\xbf\xbf'"));
ASSERT_EQUALS(0xd7ff, simplecpp::characterLiteralToLL("U'\xed\x9f\xbf'"));
ASSERT_EQUALS(0xe000, simplecpp::characterLiteralToLL("U'\xee\x80\x80'"));
ASSERT_EQUALS(0xfffd, simplecpp::characterLiteralToLL("U'\xef\xbf\xbd'"));
ASSERT_EQUALS(0x10ffff, simplecpp::characterLiteralToLL("U'\xf4\x8f\xbf\xbf'"));
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\x80'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\x80\x8f'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\x80\x8f\x8f'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\x80\x8f\x8f\x8f'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xbf'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xbf\x8f'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xbf\x8f\x8f'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xbf\x8f\x8f\x8f'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xc0'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xc0 '"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xe0\x8f'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xe0\x8f '"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xf0\x8f\x8f'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xf0\x8f\x8f '"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xf8'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xff'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xc0\xaf'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xe0\x80\xaf'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xf0\x80\x80\xaf'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xc1\xbf'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xe0\x9f\xbf'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xf0\x8f\xbf\xbf'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xc0\x80'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xe0\x80\x80'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xf0\x80\x80\x80'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xed\xa0\x80'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
ASSERT_THROW_EQUALS(simplecpp::characterLiteralToLL("U'\xed\xbf\xbf'"), std::runtime_error, "assumed UTF-8 encoded source, but sequence is invalid");
}
static void combineOperators_floatliteral()
{
ASSERT_EQUALS("1.", preprocess("1."));
ASSERT_EQUALS("1.f", preprocess("1.f"));
ASSERT_EQUALS(".1", preprocess(".1"));
ASSERT_EQUALS(".1f", preprocess(".1f"));
ASSERT_EQUALS("3.1", preprocess("3.1"));
ASSERT_EQUALS("1E7", preprocess("1E7"));
ASSERT_EQUALS("1E-7", preprocess("1E-7"));
ASSERT_EQUALS("1E+7", preprocess("1E+7"));
ASSERT_EQUALS("1.e+7", preprocess("1.e+7"));
ASSERT_EQUALS("0x1E + 7", preprocess("0x1E+7"));
ASSERT_EQUALS("0x1ffp10", preprocess("0x1ffp10"));
ASSERT_EQUALS("0x0p-1", preprocess("0x0p-1"));
ASSERT_EQUALS("0x1.p0", preprocess("0x1.p0"));
ASSERT_EQUALS("0xf.p-1", preprocess("0xf.p-1"));
ASSERT_EQUALS("0x1.2p3", preprocess("0x1.2p3"));
ASSERT_EQUALS("0x1.ap3", preprocess("0x1.ap3"));
ASSERT_EQUALS("0x1.2ap3", preprocess("0x1.2ap3"));
ASSERT_EQUALS("0x1p+3", preprocess("0x1p+3"));
ASSERT_EQUALS("0x1p+3f", preprocess("0x1p+3f"));
ASSERT_EQUALS("0x1p+3L", preprocess("0x1p+3L"));
ASSERT_EQUALS("1p + 3", preprocess("1p+3"));
}
static void combineOperators_increment()
{
ASSERT_EQUALS("; ++ x ;", preprocess(";++x;"));
ASSERT_EQUALS("; x ++ ;", preprocess(";x++;"));
ASSERT_EQUALS("1 + + 2", preprocess("1++2"));
}
static void combineOperators_coloncolon()
{
ASSERT_EQUALS("x ? y : :: z", preprocess("x ? y : ::z"));
}
static void combineOperators_andequal()
{
ASSERT_EQUALS("x &= 2 ;", preprocess("x &= 2;"));
ASSERT_EQUALS("void f ( x & = 2 ) ;", preprocess("void f(x &= 2);"));
ASSERT_EQUALS("f ( x &= 2 ) ;", preprocess("f(x &= 2);"));
}
static void combineOperators_ellipsis()
{
ASSERT_EQUALS("void f ( int , ... ) ;", preprocess("void f(int, ...);"));
ASSERT_EQUALS("void f ( ) { switch ( x ) { case 1 ... 4 : } }", preprocess("void f() { switch(x) { case 1 ... 4: } }"));
}
static void comment()
{
ASSERT_EQUALS("// abc", readfile("// abc"));
ASSERT_EQUALS("", preprocess("// abc"));
ASSERT_EQUALS("/*\n\n*/abc", readfile("/*\n\n*/abc"));
ASSERT_EQUALS("\n\nabc", preprocess("/*\n\n*/abc"));
ASSERT_EQUALS("* p = a / * b / * c ;", readfile("*p=a/ *b/ *c;"));
ASSERT_EQUALS("* p = a / * b / * c ;", preprocess("*p=a/ *b/ *c;"));
}
static void comment_multiline()
{
const char code[] = "#define ABC {// \\\n"
"}\n"
"void f() ABC\n";
ASSERT_EQUALS("\n\nvoid f ( ) { }", preprocess(code));
}
static void constFold()
{
ASSERT_EQUALS("7", testConstFold("1+2*3"));
ASSERT_EQUALS("15", testConstFold("1+2*(3+4)"));
ASSERT_EQUALS("123", testConstFold("+123"));
ASSERT_EQUALS("1", testConstFold("-123<1"));
ASSERT_EQUALS("6", testConstFold("14 & 7"));
ASSERT_EQUALS("29", testConstFold("13 ^ 16"));
ASSERT_EQUALS("25", testConstFold("24 | 1"));
ASSERT_EQUALS("2", testConstFold("1?2:3"));
ASSERT_EQUALS("24", testConstFold("010+020"));
ASSERT_EQUALS("1", testConstFold("010==8"));
ASSERT_EQUALS("exception", testConstFold("!1 ? 2 :"));
ASSERT_EQUALS("exception", testConstFold("?2:3"));
}
#ifdef __CYGWIN__
static void convertCygwinPath()
{
// absolute paths
ASSERT_EQUALS("X:\\", simplecpp::convertCygwinToWindowsPath("/cygdrive/x")); // initial backslash
ASSERT_EQUALS("X:\\", simplecpp::convertCygwinToWindowsPath("/cygdrive/x/"));
ASSERT_EQUALS("X:\\dir", simplecpp::convertCygwinToWindowsPath("/cygdrive/x/dir"));
ASSERT_EQUALS("X:\\dir\\file", simplecpp::convertCygwinToWindowsPath("/cygdrive/x/dir/file"));
// relative paths
ASSERT_EQUALS("file", simplecpp::convertCygwinToWindowsPath("file"));
ASSERT_EQUALS("dir\\file", simplecpp::convertCygwinToWindowsPath("dir/file"));
ASSERT_EQUALS("..\\dir\\file", simplecpp::convertCygwinToWindowsPath("../dir/file"));
// incorrect Cygwin paths
ASSERT_EQUALS("\\cygdrive", simplecpp::convertCygwinToWindowsPath("/cygdrive"));
ASSERT_EQUALS("\\cygdrive\\", simplecpp::convertCygwinToWindowsPath("/cygdrive/"));
}
#endif
static void define1()
{
const char code[] = "#define A 1+2\n"
"a=A+3;";
ASSERT_EQUALS("# define A 1 + 2\n"
"a = A + 3 ;",
readfile(code));
ASSERT_EQUALS("\na = 1 + 2 + 3 ;",
preprocess(code));
}
static void define2()
{
const char code[] = "#define ADD(A,B) A+B\n"
"ADD(1+2,3);";
ASSERT_EQUALS("# define ADD ( A , B ) A + B\n"
"ADD ( 1 + 2 , 3 ) ;",
readfile(code));
ASSERT_EQUALS("\n1 + 2 + 3 ;",
preprocess(code));
}
static void define3()
{
const char code[] = "#define A 123\n"
"#define B A\n"
"A B";
ASSERT_EQUALS("# define A 123\n"
"# define B A\n"
"A B",
readfile(code));
ASSERT_EQUALS("\n\n123 123",
preprocess(code));
}
static void define4()
{
const char code[] = "#define A 123\n"
"#define B(C) A\n"
"A B(1)";
ASSERT_EQUALS("# define A 123\n"
"# define B ( C ) A\n"
"A B ( 1 )",
readfile(code));
ASSERT_EQUALS("\n\n123 123",
preprocess(code));
}
static void define5()
{
const char code[] = "#define add(x,y) x+y\n"
"add(add(1,2),3)";
ASSERT_EQUALS("\n1 + 2 + 3", preprocess(code));
}
static void define6()
{
const char code[] = "#define A() 1\n"
"A()";
ASSERT_EQUALS("\n1", preprocess(code));
}
static void define7()
{
const char code[] = "#define A(X) X+1\n"
"A(1 /*23*/)";
ASSERT_EQUALS("\n1 + 1", preprocess(code));
}
static void define8() // 6.10.3.10
{
const char code[] = "#define A(X) \n"
"int A[10];";
ASSERT_EQUALS("\nint A [ 10 ] ;", preprocess(code));
}
static void define9()
{
const char code[] = "#define AB ab.AB\n"
"AB.CD\n";
ASSERT_EQUALS("\nab . AB . CD", preprocess(code));
}
static void define10() // don't combine prefix with space in macro
{
const char code[] = "#define A u8 \"a b\"\n"
"A;";
ASSERT_EQUALS("\nu8 \"a b\" ;", preprocess(code));
}
static void define11() // location of expanded argument
{
const char code[] = "#line 4 \"version.h\"\n"
"#define A(x) B(x)\n"
"#define B(x) x\n"
"#define VER A(1)\n"
"\n"
"#line 10 \"cppcheck.cpp\"\n"
"VER;";
ASSERT_EQUALS("\n#line 10 \"cppcheck.cpp\"\n1 ;", preprocess(code));
}
static void define12()
{
const char code[] = "struct foo x = {\n"
" #define V 0\n"
" .x = V,\n"
"};\n";
ASSERT_EQUALS("struct foo x = {\n"
"# define V 0\n"
". x = V ,\n"
"} ;", readfile(code));
ASSERT_EQUALS("struct foo x = {\n"
"\n"
". x = 0 ,\n"
"} ;", preprocess(code));
}
static void define13()
{
const char code[] = "#define M 180.\n"
"extern void g();\n"
"void f(double d) {\n"
" if (d > M) {}\n"
"}\n";
ASSERT_EQUALS("\nextern void g ( ) ;\n"
"void f ( double d ) {\n"
"if ( d > 180. ) { }\n"
"}", preprocess(code));
}
static void define_invalid_1()
{
const char code[] = "#define A(\nB\n";
simplecpp::OutputList outputList;
ASSERT_EQUALS("", preprocess(code, &outputList));
ASSERT_EQUALS("file0,1,syntax_error,Failed to parse #define\n", toString(outputList));
}
static void define_invalid_2()
{
const char code[] = "#define\nhas#";
simplecpp::OutputList outputList;
ASSERT_EQUALS("", preprocess(code, &outputList));
ASSERT_EQUALS("file0,1,syntax_error,Failed to parse #define\n", toString(outputList));
}
static void define_define_1()
{
const char code[] = "#define A(x) (x+1)\n"
"#define B A(\n"
"B(i))";
ASSERT_EQUALS("\n\n( ( i ) + 1 )", preprocess(code));
}
static void define_define_2()
{
const char code[] = "#define A(m) n=m\n"
"#define B(x) A(x)\n"
"B(0)";
ASSERT_EQUALS("\n\nn = 0", preprocess(code));
}
static void define_define_3()
{
const char code[] = "#define ABC 123\n"
"#define A(B) A##B\n"
"A(BC)";
ASSERT_EQUALS("\n\n123", preprocess(code));
}
static void define_define_4()
{
const char code[] = "#define FOO1()\n"
"#define TEST(FOO) FOO FOO()\n"
"TEST(FOO1)";
ASSERT_EQUALS("\n\nFOO1", preprocess(code));
}
static void define_define_5()
{
const char code[] = "#define X() Y\n"
"#define Y() X\n"
"A: X()()()\n";
// mcpp outputs "A: X()" and gcc/clang/vc outputs "A: Y"
ASSERT_EQUALS("\n\nA : Y", preprocess(code)); // <- match the output from gcc/clang/vc
}
static void define_define_6()
{
const char code1[] = "#define f(a) a*g\n"
"#define g f\n"
"a: f(2)(9)\n";
ASSERT_EQUALS("\n\na : 2 * f ( 9 )", preprocess(code1));
const char code2[] = "#define f(a) a*g\n"
"#define g(a) f(a)\n"
"a: f(2)(9)\n";
ASSERT_EQUALS("\n\na : 2 * 9 * g", preprocess(code2));
}
static void define_define_7()
{
const char code[] = "#define f(x) g(x\n"
"#define g(x) x()\n"
"f(f))\n";
ASSERT_EQUALS("\n\nf ( )", preprocess(code));
}
static void define_define_8() // line break in nested macro call
{
const char code[] = "#define A(X,Y) ((X)*(Y))\n"
"#define B(X,Y) ((X)+(Y))\n"
"B(0,A(255,x+\n"
"y))\n";
ASSERT_EQUALS("\n\n( ( 0 ) + ( ( ( 255 ) * ( x + y ) ) ) )", preprocess(code));
}
static void define_define_9() // line break in nested macro call
{
const char code[] = "#define A(X) X\n"
"#define B(X) X\n"
"A(\nB(dostuff(1,\n2)))\n";
ASSERT_EQUALS("\n\ndostuff ( 1 , 2 )", preprocess(code));
}
static void define_define_10()
{
const char code[] = "#define glue(a, b) a ## b\n"
"#define xglue(a, b) glue(a, b)\n"
"#define AB 1\n"
"#define B B 2\n"
"xglue(A, B)\n";
ASSERT_EQUALS("\n\n\n\n1 2", preprocess(code));
}
static void define_define_11()
{
const char code[] = "#define XY(x, y) x ## y\n"
"#define XY2(x, y) XY(x, y)\n"
"#define PORT XY2(P, 2)\n"
"#define ABC XY2(PORT, DIR)\n"
"ABC;\n";
ASSERT_EQUALS("\n\n\n\nP2DIR ;", preprocess(code));
}
static void define_define_11a()
{
const char code[] = "#define A_B_C 0x1\n"
"#define A_ADDRESS 0x00001000U\n"
"#define A ((uint32_t ) A_ADDRESS)\n"
"#define CONCAT(x, y, z) x ## _ ## y ## _ ## z\n"
"#define TEST_MACRO CONCAT(A, B, C)\n"
"TEST_MACRO\n";
ASSERT_EQUALS("\n\n\n\n\n0x1", preprocess(code));
}
static void define_define_12()
{
const char code[] = "#define XY(Z) Z\n"
"#define X(ID) X##ID(0)\n"
"X(Y)\n";
ASSERT_EQUALS("\n\n0", preprocess(code));
}
static void define_define_13() // issue #49 - empty macro
{
const char code[] = "#define f()\n"
"#define t(a) a\n"
"(t(f))\n";
ASSERT_EQUALS("\n\n( f )", preprocess(code));
}
static void define_define_14() // issue #58 - endless recursion
{
const char code[] = "#define z f(w\n"
"#define f()\n"
"#define w f(z\n"
"w\n";
ASSERT_EQUALS("\n\n\nf ( f ( w", preprocess(code)); // Don't crash
}
static void define_define_15() // issue #72 without __VA_ARGS__
{
const char code[] = "#define a f\n"
"#define foo(x,y) a(x,y)\n"
"#define f(x, y) x y\n"
"foo(1,2)";
ASSERT_EQUALS("\n\n\n1 2", preprocess(code));
}
static void define_define_16() // issue #72 with __VA_ARGS__
{
const char code[] = "#define ab(a, b) a##b\n"
"#define foo(...) ab(f, 2) (__VA_ARGS__)\n"
"#define f2(x, y) x y\n"
"foo(1,2)";
ASSERT_EQUALS("\n\n\n1 2", preprocess(code));
}
static void define_define_17()
{
const char code[] = "#define Bar(x) x\n"
"#define Foo Bar(1)\n"
"Bar( Foo ) ;";
ASSERT_EQUALS("\n\n1 ;", preprocess(code));
}
static void define_define_18()
{
const char code[] = "#define FOO(v) BAR(v, 0)\n"
"#define BAR(v, x) (v)\n"
"#define var (p->var)\n"
"FOO(var);";
ASSERT_EQUALS("\n\n\n( ( p -> var ) ) ;", preprocess(code));
}
static void define_define_19() // #292
{
const char code[] = "#define X 1,2,3\n"
"#define Foo(A, B) A\n"
"#define Bar Foo(X, 0)\n"
"Bar\n";
ASSERT_EQUALS("\n\n\n1 , 2 , 3", preprocess(code));
}
static void define_va_args_1()
{
const char code[] = "#define A(fmt...) dostuff(fmt)\n"
"A(1,2);";
ASSERT_EQUALS("\ndostuff ( 1 , 2 ) ;", preprocess(code));
}
static void define_va_args_2()
{
const char code[] = "#define A(X,...) X(#__VA_ARGS__)\n"
"A(f,123);";
ASSERT_EQUALS("\nf ( \"123\" ) ;", preprocess(code));
}
static void define_va_args_3() // min number of arguments
{
const char code[] = "#define A(x, y, z...) 1\n"
"A(1, 2)\n";
ASSERT_EQUALS("\n1", preprocess(code));
}
static void define_va_args_4() // cppcheck trac #9754
{
const char code[] = "#define A(x, y, ...) printf(x, y, __VA_ARGS__)\n"
"A(1, 2)\n";
ASSERT_EQUALS("\nprintf ( 1 , 2 )", preprocess(code));
}
static void define_va_opt_1()
{
const char code[] = "#define p1(fmt, args...) printf(fmt __VA_OPT__(,) args)\n"
"p1(\"hello\");\n"
"p1(\"%s\", \"hello\");\n";
ASSERT_EQUALS("\nprintf ( \"hello\" ) ;\n"
"printf ( \"%s\" , \"hello\" ) ;",
preprocess(code));
}
static void define_va_opt_2()
{
const char code[] = "#define err(...)\\\n"
"__VA_OPT__(\\\n"
"printf(__VA_ARGS__);\\\n"
")\n"
"#define err2(something, ...) __VA_OPT__(err(__VA_ARGS__))\n"
"err2(test)\n"
"err2(test, \"%d\", 2)\n";
ASSERT_EQUALS("\n\n\n\n\n\nprintf ( \"%d\" , 2 ) ;", preprocess(code));
}
static void define_va_opt_3()
{
// non-escaped newline without closing parenthesis
const char code1[] = "#define err(...) __VA_OPT__(printf( __VA_ARGS__);\n"
")\n"
"err()";
simplecpp::OutputList outputList;
ASSERT_EQUALS("", preprocess(code1, &outputList));
ASSERT_EQUALS("file0,1,syntax_error,failed to expand 'err', Missing parenthesis for __VA_OPT__(content)\n",
toString(outputList));
outputList.clear();
// non-escaped newline without open parenthesis
const char code2[] = "#define err(...) __VA_OPT__\n"
"(something)\n"
"err()";
ASSERT_EQUALS("", preprocess(code2, &outputList));
ASSERT_EQUALS("file0,1,syntax_error,failed to expand 'err', Missing parenthesis for __VA_OPT__(content)\n",
toString(outputList));
}
static void define_va_opt_4()
{
// missing parenthesis
const char code1[] = "#define err(...) __VA_OPT__ something\n"
"err()";
simplecpp::OutputList outputList;
ASSERT_EQUALS("", preprocess(code1, &outputList));
ASSERT_EQUALS("file0,1,syntax_error,failed to expand 'err', Missing parenthesis for __VA_OPT__(content)\n",
toString(outputList));
outputList.clear();
// missing open parenthesis
const char code2[] = "#define err(...) __VA_OPT__ something)\n"
"err()";
ASSERT_EQUALS("", preprocess(code2, &outputList));
ASSERT_EQUALS("file0,1,syntax_error,failed to expand 'err', Missing parenthesis for __VA_OPT__(content)\n",
toString(outputList));
}
static void define_va_opt_5()
{
// parenthesis not directly proceeding __VA_OPT__
const char code[] = "#define err(...) __VA_OPT__ something (something)\n"
"err()";
simplecpp::OutputList outputList;
ASSERT_EQUALS("", preprocess(code, &outputList));
ASSERT_EQUALS("file0,1,syntax_error,failed to expand 'err', Missing parenthesis for __VA_OPT__(content)\n",
toString(outputList));
}
static void define_ifdef()
{
const char code[] = "#define A(X) X\n"
"A(1\n"
"#ifdef CFG\n"
"#endif\n"
")\n";
simplecpp::OutputList outputList;
ASSERT_EQUALS("", preprocess(code, &outputList));
ASSERT_EQUALS("file0,3,syntax_error,failed to expand 'A', it is invalid to use a preprocessor directive as macro parameter\n", toString(outputList));
}
static void pragma_backslash()
{
const char code[] = "#pragma comment (longstring, \\\n"
"\"HEADER\\\n"
"This is a very long string that is\\\n"
"a multi-line string.\\\n"
"How much more do I have to say?\\\n"
"Well, be prepared, because the\\\n"
"story is just beginning. This is a test\\\n"
"string for demonstration purposes. \")\n";
simplecpp::OutputList outputList;
ASSERT_EQUALS("", preprocess(code, &outputList));
}
static void dollar()
{
ASSERT_EQUALS("$ab", readfile("$ab"));
ASSERT_EQUALS("a$b", readfile("a$b"));
}
static void error1()
{
const char code[] = "#error hello world!\n";
simplecpp::OutputList outputList;
ASSERT_EQUALS("", preprocess(code, &outputList));
ASSERT_EQUALS("file0,1,#error,#error hello world!\n", toString(outputList));
}
static void error2()
{
const char code[] = "#error it's an error\n";
simplecpp::OutputList outputList;
ASSERT_EQUALS("", preprocess(code, &outputList));
ASSERT_EQUALS("file0,1,#error,#error it's an error\n", toString(outputList));
}
static void error3()
{
const char code[] = "#error \"bla bla\\\n"
" bla bla.\"\n";
std::vector<std::string> files;
simplecpp::OutputList outputList;
const simplecpp::TokenList rawtokens = makeTokenList(code, files, "test.c", &outputList);
ASSERT_EQUALS("", toString(outputList));
}
static void error4()
{
// "#error x\n1"
const char code[] = "\xFE\xFF\x00\x23\x00\x65\x00\x72\x00\x72\x00\x6f\x00\x72\x00\x20\x00\x78\x00\x0a\x00\x31";
std::vector<std::string> files;
std::map<std::string, simplecpp::TokenList*> filedata;
simplecpp::OutputList outputList;
simplecpp::TokenList tokens2(files);
const simplecpp::TokenList rawtoken = makeTokenList(code, sizeof(code),files,"test.c");
simplecpp::preprocess(tokens2, rawtoken, files, filedata, simplecpp::DUI(), &outputList);
ASSERT_EQUALS("file0,1,#error,#error x\n", toString(outputList));
}
static void error5()
{
// "#error x\n1"
const char code[] = "\xFF\xFE\x23\x00\x65\x00\x72\x00\x72\x00\x6f\x00\x72\x00\x20\x00\x78\x00\x0a\x00\x78\x00\x31\x00";
std::vector<std::string> files;
std::map<std::string, simplecpp::TokenList*> filedata;
simplecpp::OutputList outputList;
simplecpp::TokenList tokens2(files);
const simplecpp::TokenList rawtokens = makeTokenList(code, sizeof(code),files,"test.c");
simplecpp::preprocess(tokens2, rawtokens, files, filedata, simplecpp::DUI(), &outputList);
ASSERT_EQUALS("file0,1,#error,#error x\n", toString(outputList));
}
static void garbage()