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cppcheck/test/testsimplifytokens.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2009 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/>.
*/
#include "testsuite.h"
#define private public
#include "tokenize.h"
#undef private
#include "token.h"
#include <sstream>
extern std::ostringstream errout;
class TestSimplifyTokens : public TestFixture
{
public:
TestSimplifyTokens() : TestFixture("TestSimplifyTokens")
{ }
private:
void run()
{
TEST_CASE(cast);
TEST_CASE(iftruefalse);
TEST_CASE(combine_strings);
TEST_CASE(double_plus);
TEST_CASE(redundant_plus);
TEST_CASE(parantheses1);
TEST_CASE(paranthesesVar); // Remove redundant parantheses around variable .. "( %var% )"
TEST_CASE(declareVar);
TEST_CASE(declareArray);
TEST_CASE(dontRemoveIncrement);
TEST_CASE(removePostIncrement);
TEST_CASE(removePreIncrement);
TEST_CASE(elseif1);
TEST_CASE(sizeof1);
TEST_CASE(sizeof2);
TEST_CASE(sizeof3);
TEST_CASE(sizeof4);
TEST_CASE(sizeof5);
TEST_CASE(sizeof6);
TEST_CASE(sizeof7);
TEST_CASE(sizeof8);
TEST_CASE(sizeof9);
TEST_CASE(sizeof10);
TEST_CASE(sizeof11);
TEST_CASE(sizeof12);
TEST_CASE(sizeof13);
TEST_CASE(sizeof14);
TEST_CASE(sizeof15);
TEST_CASE(sizeof16);
TEST_CASE(sizeof17);
TEST_CASE(casting);
TEST_CASE(strlen1);
TEST_CASE(template1);
TEST_CASE(template2);
TEST_CASE(template3);
TEST_CASE(template4);
TEST_CASE(template5);
TEST_CASE(template6);
TEST_CASE(template7);
TEST_CASE(template8);
TEST_CASE(template9);
TEST_CASE(template10);
TEST_CASE(template11);
TEST_CASE(template12);
TEST_CASE(template13);
TEST_CASE(template14);
TEST_CASE(template15);
TEST_CASE(template16);
TEST_CASE(template17);
TEST_CASE(template_default_parameter);
TEST_CASE(template_default_type);
TEST_CASE(template_typename);
TEST_CASE(namespaces);
// Assignment in condition..
TEST_CASE(ifassign1);
TEST_CASE(whileAssign);
// "if(0==x)" => "if(!x)"
TEST_CASE(ifnot);
TEST_CASE(combine_wstrings);
// Simplify "not" to "!" (#345)
TEST_CASE(not1);
// Simplify "and" to "&&" (#620)
TEST_CASE(and1);
TEST_CASE(comma_keyword);
TEST_CASE(remove_comma);
// Simplify "?:"
TEST_CASE(conditionOperator);
// Simplify calculations
TEST_CASE(calculations);
// Simplify goto..
TEST_CASE(goto1);
// Simplify nested strcat() calls
TEST_CASE(strcat1);
TEST_CASE(strcat2);
// Syntax error
TEST_CASE(argumentsWithSameName)
TEST_CASE(simplifyAtol)
TEST_CASE(simplifyHexInString)
TEST_CASE(simplifyTypedef)
TEST_CASE(simplifyTypedef2)
TEST_CASE(simplifyTypedef3)
TEST_CASE(simplifyTypedef4)
TEST_CASE(simplifyTypedef5)
TEST_CASE(simplifyTypedef6)
TEST_CASE(simplifyTypedef7);
TEST_CASE(simplifyTypedef8);
TEST_CASE(reverseArraySyntax)
TEST_CASE(simplify_numeric_condition)
TEST_CASE(pointeralias);
TEST_CASE(reduceConstness);
}
std::string tok(const char code[], bool simplify = true)
{
errout.str("");
Settings settings;
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp");
if (simplify)
tokenizer.simplifyTokenList();
tokenizer.validate();
std::string ret;
for (const Token *tok = tokenizer.tokens(); tok; tok = tok->next())
{
if (tok != tokenizer.tokens())
ret += " ";
ret += tok->str();
}
return ret;
}
void cast()
{
ASSERT_EQUALS("if ( ! p )", tok("if (p == (char *)0)"));
ASSERT_EQUALS("return str ;", tok("return (char *)str;"));
{
const char code[] = "static void crash()\n"
"{\n"
" goto err_exit;\n"
"err_exit:\n"
" (void)foo();\n"
"}\n";
const char expected[] = "static void crash ( ) "
"{ foo ( ) ; return ; foo ( ) ; }";
ASSERT_EQUALS(expected, tok(code));
}
ASSERT_EQUALS("if ( * a )", tok("if ((char)*a)"));
ASSERT_EQUALS("if ( & a )", tok("if ((int)&a)"));
ASSERT_EQUALS("if ( * a )", tok("if ((unsigned int)(unsigned char)*a)"));
ASSERT_EQUALS("class A { A operator * ( int ) ; } ;", tok("class A { A operator *(int); };"));
ASSERT_EQUALS("class A { A operator * ( int ) const ; } ;", tok("class A { A operator *(int) const; };"));
}
void iftruefalse()
{
{
const char code1[] = " void f() { int a; bool use = false; if( use ) { a=0; } else {a=1;} }";
const char code2[] = " void f() { int a; bool use = false; {a=1;} }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
{
const char code1[] = " void f() { int a; bool use = true; if( use ) { a=0; } else {a=1;} }";
const char code2[] = " void f() { int a; bool use = true; { a=0; } }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
{
const char code1[] = " void f() { int a; int use = 5; if( use ) { a=0; } else {a=1;} }";
const char code2[] = " void f() { int a; int use = 5; { a=0; } }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
{
const char code1[] = " void f() { int a; int use = 0; if( use ) { a=0; } else {a=1;} }";
const char code2[] = " void f() { int a; int use = 0; {a=1;} }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
{
const char code1[] = " void f() { int a; bool use = false; if( use ) a=0; else a=1; int c=1; }";
const char code2[] = " void f() { int a; bool use = false; { a=1; } int c=1; }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
{
const char code1[] = " void f() { int a; bool use = true; if( use ) a=0; else a=1; int c=1; }";
const char code2[] = " void f() { int a; bool use = true; { a=0; } int c=1; }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
{
const char code1[] = " void f() { int a; bool use = false; if( use ) a=0; else if( bb ) a=1; int c=1; }";
const char code2[] = " void f ( ) { int a ; bool use ; use = false ; { if ( bb ) { a = 1 ; } } int c ; c = 1 ; }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
{
const char code1[] = " void f() { int a; bool use = true; if( use ) a=0; else if( bb ) a=1; int c=1; }";
const char code2[] = " void f() { int a; bool use = true; { a=0;} int c=1; }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
{
const char code1[] = " void f() { int a; bool use = true; if( use ) a=0; else if( bb ) a=1; else if( cc ) a=33; else { gg = 0; } int c=1; }";
const char code2[] = " void f() { int a; bool use = true; { a=0; }int c=1; }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
{
const char code1[] = " void f() { if( aa ) { a=0; } else if( true ) a=1; else { a=2; } }";
const char code2[] = " void f ( ) { if ( aa ) { a = 0 ; } else { { a = 1 ; } } }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
{
const char code1[] = " void f() { if( aa ) { a=0; } else if( false ) a=1; else { a=2; } }";
const char code2[] = " void f ( ) { if ( aa ) { a = 0 ; } else { { a = 2 ; } } }";
ASSERT_EQUALS(tok(code2), tok(code1));
}
}
void combine_strings()
{
const char code1[] = "void foo()\n"
"{\n"
"const char *a =\n"
"{\n"
"\"hello \"\n"
"\"world\"\n"
"};\n"
"}\n";
const char code2[] = "void foo()\n"
"{\n"
"const char *a =\n"
"{\n"
"\"hello world\"\n"
"};\n"
"}\n";
ASSERT_EQUALS(tok(code2), tok(code1));
}
void combine_wstrings()
{
const char code1[] = "void foo()\n"
"{\n"
"const wchar_t *a =\n"
"{\n"
"L\"hello \"\n"
"L\"world\"\n"
"};\n"
"}\n";
const char code2[] = "void foo()\n"
"{\n"
"const wchar_t *a =\n"
"{\n"
"\"hello world\"\n"
"};\n"
"}\n";
ASSERT_EQUALS(tok(code2), tok(code1));
}
void double_plus()
{
{
const char code1[] = "void foo( int a )\n"
"{\n"
"a++;\n"
"a--;\n"
"++a;\n"
"--a;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a ) { a ++ ; a -- ; ++ a ; -- a ; }", tok(code1));
}
{
const char code1[] = "void foo( int a )\n"
"{\n"
"a=a+a;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a ) { a = a + a ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a+++b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a ++ + b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a---b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a -- - b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a--+b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a -- + b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a++-b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a ++ - b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a+--b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a + -- b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a-++b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a - ++ b ; }", tok(code1));
}
}
void redundant_plus()
{
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a + + b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a + b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a + + + b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a + b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a + - b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a - b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a - + b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a - b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a - - b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a + b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a - + - b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a + b ; }", tok(code1));
}
{
const char code1[] = "void foo( int a, int b )\n"
"{\n"
"a=a - - - b;\n"
"}\n";
ASSERT_EQUALS("void foo ( int a , int b ) { a = a - b ; }", tok(code1));
}
}
void parantheses1()
{
ASSERT_EQUALS("<= 110 ;", tok("<= (10+100);"));
}
void paranthesesVar()
{
// remove parantheses..
ASSERT_EQUALS("= p ;", tok("= (p);"));
ASSERT_EQUALS("if ( a < p ) { }", tok("if(a<(p)){}"));
ASSERT_EQUALS("void f ( ) { int p ; if ( p == -1 ) { } }", tok("void f(){int p; if((p)==-1){}}"));
ASSERT_EQUALS("void f ( ) { int p ; if ( p == -1 ) { } }", tok("void f(){int p; if(-1==(p)){}}"));
ASSERT_EQUALS("void f ( ) { int p ; if ( p ) { } }", tok("void f(){int p; if((p)){}}"));
ASSERT_EQUALS("return p ;", tok("return (p);"));
ASSERT_EQUALS("void f ( ) { int * p ; if ( ! * p ) { } }", tok("void f(){int *p; if (*(p) == 0) {}}"));
ASSERT_EQUALS("void f ( ) { int * p ; if ( ! * p ) { } }", tok("void f(){int *p; if (*p == 0) {}}"));
ASSERT_EQUALS("void f ( ) { int p ; p = 1 ; }", tok("void f(){int p; (p) = 1;}"));
ASSERT_EQUALS("void f ( ) { int p [ 10 ] ; p [ 0 ] = 1 ; }", tok("void f(){int p[10]; (p)[0] = 1;}"));
ASSERT_EQUALS("void f ( ) { int p ; if ( ! p ) { } }", tok("void f(){int p; if ((p) == 0) {}}"));
ASSERT_EQUALS("void f ( ) { int * p ; * p = 1 ; }", tok("void f(){int *p; *(p) = 1;}"));
ASSERT_EQUALS("void f ( ) { int p ; if ( p ) { } p = 1 ; }", tok("void f(){int p; if ( p ) { } (p) = 1;}"));
// keep parantheses..
ASSERT_EQUALS("= a ;", tok("= (char)a;"));
ASSERT_EQUALS("cast < char * > ( p )", tok("cast<char *>(p)"));
ASSERT_EQUALS("return ( a + b ) * c ;", tok("return (a+b)*c;"));
ASSERT_EQUALS("void f ( ) { int p ; if ( 2 * p == 0 ) { } }", tok("void f(){int p; if (2*p == 0) {}}"));
ASSERT_EQUALS("void f ( ) { DIR * f ; f = opendir ( dirname ) ; if ( closedir ( f ) ) { } }", tok("void f(){DIR * f = opendir(dirname);if (closedir(f)){}}"));
ASSERT_EQUALS("void foo ( int p ) { if ( 0 <= p ) { ; } }", tok("void foo(int p){if((p)>=0);}"));
}
void declareVar()
{
const char code[] = "void f ( ) { char str [ 100 ] = \"100\" ; }";
ASSERT_EQUALS(code, tok(code));
}
void declareArray()
{
const char code[] = "void f ( ) { char str [ ] = \"100\" ; }";
const char expected[] = "void f ( ) { char * str ; str = \"100\" ; }";
ASSERT_EQUALS(expected, tok(code));
}
void dontRemoveIncrement()
{
{
const char code[] = "void f(int a)\n"
"{\n"
" if (a > 10)\n"
" a = 5;\n"
" else\n"
" a = 10;\n"
" a++;\n"
"}\n";
ASSERT_EQUALS("void f ( int a ) { if ( 10 < a ) { a = 5 ; } else { a = 10 ; } a ++ ; }", tok(code));
}
{
const char code[] = "void f(int a)\n"
"{\n"
" if (a > 10)\n"
" a = 5;\n"
" else\n"
" a = 10;\n"
" ++a;\n"
"}\n";
ASSERT_EQUALS("void f ( int a ) { if ( 10 < a ) { a = 5 ; } else { a = 10 ; } ++ a ; }", tok(code));
}
}
void removePostIncrement()
{
const char code[] = "void f()\n"
"{\n"
" unsigned int c = 0;\n"
" c++;\n"
" if (c>0) { c++; }\n"
" c++;\n"
"}\n";
ASSERT_EQUALS("void f ( ) { int c ; c = 3 ; ; { ; } ; }", tok(code));
}
void removePreIncrement()
{
{
const char code[] = "void f()\n"
"{\n"
" unsigned int c = 0;\n"
" ++c;\n"
" if (c>0) { ++c; }\n"
" ++c;\n"
"}\n";
ASSERT_EQUALS("void f ( ) { int c ; c = 3 ; ; { ; } ; }", tok(code));
}
{
const char code[] = "void f()\n"
"{\n"
" char a[] = \"p\";\n"
" ++a[0];\n"
"}\n";
ASSERT_EQUALS("void f ( ) { char * a ; a = \"p\" ; ++ a [ 0 ] ; }", tok(code));
}
}
std::string elseif(const char code[])
{
std::istringstream istr(code);
Tokenizer tokenizer;
tokenizer.createTokens(istr);
tokenizer.elseif();
return tokenizer.tokens()->stringifyList(false);
}
void elseif1()
{
const char code[] = "else if(ab) { cd } else { ef }gh";
ASSERT_EQUALS("\n\n##file 0\n1: else { if ( ab ) { cd } else { ef } } gh\n", elseif(code));
// syntax error: assert there is no segmentation fault
ASSERT_EQUALS("\n\n##file 0\n1: else if ( x ) { }\n", elseif("else if (x) { }"));
{
const char src[] = "void f(int g,int f) {\n"
"if(g==1) {poo();}\n"
"else if( g == 2 )\n"
"{\n"
" if( f == 0 ){coo();}\n"
" else if( f==1)\n"
" goo();\n"
"}\n"
"}";
const char expected[] = "void f ( int g , int f ) "
"{ "
"if ( g == 1 ) { poo ( ) ; } "
"else { "
"if ( g == 2 ) "
"{ "
"if ( ! f ) { coo ( ) ; } "
"else { "
"if ( f == 1 ) "
"{ "
"goo ( ) ; "
"} "
"} "
"} "
"} "
"}";
ASSERT_EQUALS(tok(expected), tok(src));
}
}
// Simplify 'sizeof'..
std::string sizeof_(const char code[])
{
// tokenize..
Settings settings;
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp");
tokenizer.setVarId();
tokenizer.simplifyTokenList();
std::ostringstream ostr;
for (const Token *tok = tokenizer.tokens(); tok; tok = tok->next())
{
if (tok->previous())
{
ostr << " ";
}
ostr << tok->str();
}
return ostr.str();
}
unsigned int sizeofFromTokenizer(const char type[])
{
Tokenizer tokenizer;
std::istringstream istr("");
tokenizer.tokenize(istr, "test.cpp");
tokenizer.simplifyTokenList();
Token tok;
tok.str(type);
return tokenizer.sizeOfType(&tok);
}
void sizeof1()
{
ASSERT_EQUALS("struct ABC * abc ; abc = malloc ( 100 ) ;", tok("struct ABC *abc = malloc(sizeof(*abc));"));
ASSERT_EQUALS("struct ABC * abc ; abc = malloc ( 100 ) ;", tok("struct ABC *abc = malloc(sizeof *abc );"));
}
void sizeof2()
{
const char code[] = "void foo()\n"
"{\n"
" int i[4];\n"
" sizeof(i);\n"
" sizeof(*i);\n"
"}\n";
ASSERT_EQUALS("void foo ( ) { int i [ 4 ] ; 16 ; 4 ; }", sizeof_(code));
}
void sizeof3()
{
const char code[] = "static int i[4];\n"
"void f()\n"
"{\n"
" int i[10];\n"
" sizeof(i);\n"
"}\n";
ASSERT_EQUALS("static int i [ 4 ] ; void f ( ) { int i [ 10 ] ; 40 ; }", sizeof_(code));
}
void sizeof4()
{
{
const char code[] = "int i[10];\n"
"sizeof(i[0]);\n";
ASSERT_EQUALS("int i [ 10 ] ; 4 ;", sizeof_(code));
}
{
const char code[] = "int i[10];\n"
"sizeof i[0];\n";
ASSERT_EQUALS("int i [ 10 ] ; 4 ;", sizeof_(code));
}
}
void sizeof5()
{
const char code[] =
"const char * names[2];"
"for (int i = 0; i < sizeof(names[0]); i++)"
"{}";
std::ostringstream expected;
expected << "const char * names [ 2 ] ; for ( int i = 0 ; i < " << sizeofFromTokenizer("*") << " ; i ++ ) { }";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
void sizeof6()
{
const char code[] = ";int i;\n"
"sizeof(i);\n";
std::ostringstream expected;
expected << "; int i ; " << sizeof(int) << " ;";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
void sizeof7()
{
const char code[] = ";INT32 i[10];\n"
"sizeof(i[0]);\n";
ASSERT_EQUALS("; INT32 i [ 10 ] ; sizeof ( i [ 0 ] ) ;", sizeof_(code));
}
void sizeof8()
{
{
const char code[] = "void f()\n"
"{\n"
" char* ptrs[2];\n"
" int a = sizeof( ptrs );\n"
"}\n";
std::ostringstream oss;
oss << (sizeofFromTokenizer("*") * 2);
ASSERT_EQUALS("void f ( ) { char * ptrs [ 2 ] ; int a ; a = " + oss.str() + " ; }", sizeof_(code));
}
{
const char code[] = "void f()\n"
"{\n"
" char* ptrs[55];\n"
" int a = sizeof( ptrs );\n"
"}\n";
std::ostringstream oss;
oss << (sizeofFromTokenizer("*") * 55);
ASSERT_EQUALS("void f ( ) { char * ptrs [ 55 ] ; int a ; a = " + oss.str() + " ; }", sizeof_(code));
}
{
const char code[] = "void f()\n"
"{\n"
" char* ptrs;\n"
" int a = sizeof( ptrs );\n"
"}\n";
std::ostringstream oss;
oss << sizeofFromTokenizer("*");
ASSERT_EQUALS("void f ( ) { char * ptrs ; int a ; a = " + oss.str() + " ; }", sizeof_(code));
}
}
void sizeof9()
{
// ticket #487
{
const char code[] = "; const char *str = \"1\"; sizeof(str);";
std::ostringstream expected;
expected << "; const char * str ; str = \"1\" ; " << sizeofFromTokenizer("*") << " ;";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
{
const char code[] = "; const char str[] = \"1\"; sizeof(str);";
std::ostringstream expected;
expected << "; const char * str ; str = \"1\" ; " << sizeofFromTokenizer("char")*2 << " ;";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
{
const char code[] = "; const char str[] = {'1'}; sizeof(str);";
const char str[] = {'1'};
std::ostringstream expected;
expected << "; const char * str ; str = { '1' } ; " << sizeof(str) << " ;";
TODO_ASSERT_EQUALS(expected.str(), sizeof_(code));
}
// ticket #716 - sizeof string
{
std::ostringstream expected;
expected << "; " << (sizeof "123");
ASSERT_EQUALS(expected.str(), sizeof_("; sizeof \"123\""));
ASSERT_EQUALS(expected.str(), sizeof_("; sizeof(\"123\")"));
}
{
const char code[] = "void f(char *a,char *b, char *c)"
"{g(sizeof(a),sizeof(b),sizeof(c));}";
std::ostringstream expected;
expected << "void f ( char * a , char * b , char * c ) { g ( " <<
sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " ) ; }";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
{
const char code[] = "void f(char a,char b, char c)"
"{g(sizeof(a),sizeof(b),sizeof(c));}";
std::ostringstream expected;
expected << "void f ( char a , char b , char c ) { g ( " <<
sizeofFromTokenizer("char") << " , " << sizeofFromTokenizer("char") << " , " << sizeofFromTokenizer("char") << " ) ; }";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
{
const char code[] = "void f(const char *a,const char *b, const char *c)"
"{g(sizeof(a),sizeof(b),sizeof(c));}";
std::ostringstream expected;
expected << "void f ( const char * a , const char * b , const char * c ) { g ( " <<
sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " ) ; }";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
{
const char code[] = "void f(char a[10],char b[10], char c[10])"
"{g(sizeof(a),sizeof(b),sizeof(c));}";
std::ostringstream expected;
expected << "void f ( char a [ 10 ] , char b [ 10 ] , char c [ 10 ] ) { g ( " <<
sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " ) ; }";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
{
const char code[] = "void f(const char a[10],const char b[10], const char c[10])"
"{g(sizeof(a),sizeof(b),sizeof(c));}";
std::ostringstream expected;
expected << "void f ( const char a [ 10 ] , "
"const char b [ 10 ] , "
"const char c [ 10 ] ) { g ( " <<
sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " ) ; }";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
{
const char code[] = "void f(const char *a[10],const char *b[10], const char *c[10])"
"{g(sizeof(a),sizeof(b),sizeof(c));}";
std::ostringstream expected;
expected << "void f ( const char * a [ 10 ] , "
"const char * b [ 10 ] , "
"const char * c [ 10 ] ) { g ( " <<
sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " ) ; }";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
{
const char code[] = "void f(char *a[10],char *b[10], char *c[10])"
"{g(sizeof(a),sizeof(b),sizeof(c));}";
std::ostringstream expected;
expected << "void f ( char * a [ 10 ] , char * b [ 10 ] , char * c [ 10 ] ) { g ( " <<
sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " , " << sizeofFromTokenizer("*") << " ) ; }";
ASSERT_EQUALS(expected.str(), sizeof_(code));
}
{
std::ostringstream expected;
expected << "; " << sizeof("\"quote\"");
ASSERT_EQUALS(expected.str(), sizeof_("; sizeof(\"\\\"quote\\\"\")"));
}
{
std::ostringstream expected;
expected << "void f ( ) { char str [ 100 ] = \"100\" ; " << sizeofFromTokenizer("char")*100 << " }";
ASSERT_EQUALS(expected.str(), tok("void f ( ) { char str [ 100 ] = \"100\" ; sizeof ( str ) }"));
}
}
void sizeof10()
{
// ticket #809
const char code[] = "int m ; "
"compat_ulong_t um ; "
"size_t size ; size = sizeof ( m ) / sizeof ( um ) ;";
ASSERT_EQUALS(code, tok(code));
}
void sizeof11()
{
// ticket #827
const char code[] = "void f()\n"
"{\n"
" char buf2[4];\n"
" sizeof buf2;\n"
"}\n"
"\n"
"void g()\n"
"{\n"
" struct A a[2];\n"
" char buf[32];\n"
" sizeof buf;\n"
"}";
const char expected[] = "void f ( ) "
"{"
" char buf2 [ 4 ] ;"
" 4 ; "
"} "
""
"void g ( ) "
"{"
" struct A a [ 2 ] ;"
" char buf [ 32 ] ;"
" 32 ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void sizeof12()
{
// ticket #827
const char code[] = "void f()\n"
"{\n"
" int *p;\n"
" (sizeof *p);\n"
"}";
const char expected[] = "void f ( ) "
"{"
" int * p ;"
" 4 ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void sizeof13()
{
// ticket #851
const char code[] = "int main()\n"
"{\n"
" char *a;\n"
" a = malloc(sizeof(*a));\n"
"}\n"
"\n"
"struct B\n"
"{\n"
" char * b[2];\n"
"};";
const char expected[] = "int main ( ) "
"{"
" char * a ;"
" a = malloc ( 1 ) ; "
"} "
"struct B "
"{"
" char * b [ 2 ] ; "
"} ;";
ASSERT_EQUALS(expected, tok(code));
}
void sizeof14()
{
// ticket #954
const char code[] = "void f()\n"
"{\n"
" A **a;\n"
" int aa = sizeof *(*a)->b;\n"
"}\n";
const char expected[] = "void f ( ) "
"{"
" A * * a ;"
" int aa ; aa = sizeof ( * ( * a ) . b ) ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void sizeof15()
{
// ticket #1020
tok("void f()\n"
"{\n"
" int *n;\n"
" sizeof *(n);\n"
"}\n");
ASSERT_EQUALS("", errout.str());
}
void sizeof16()
{
// ticket #1027
const char code[] = "void f()\n"
"{\n"
" int a;\n"
" printf(\"%i\", sizeof a++);\n"
"}\n";
ASSERT_EQUALS("void f ( ) { int a ; printf ( \"%i\" , sizeof ( a ++ ) ) ; }", tok(code));
ASSERT_EQUALS("", errout.str());
}
void sizeof17()
{
// ticket #1050
const char code[] = "void f()\n"
"{\n"
" sizeof 1;\n"
" while (0);\n"
"}\n";
ASSERT_EQUALS("void f ( ) { sizeof ( 1 ) ; while ( false ) { ; } }", tok(code));
ASSERT_EQUALS("", errout.str());
}
void casting()
{
{
const char code[] = "void f()\n"
"{\n"
"for (int i = 0; i < static_cast<int>(3); ++i) {}\n"
"}\n";
const std::string expected("void f ( ) { for ( int i = 0 ; i < 3 ; ++ i ) { } }");
ASSERT_EQUALS(expected, sizeof_(code));
}
{
const char code[] = "void f()\n"
"{\n"
" p = const_cast<char *> qtu ();\n"
"}\n";
const std::string expected("void f ( ) { p = const_cast < char * > qtu ( ) ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
{
// ticket #645
const char code[] = "void f()\n"
"{\n"
" return dynamic_cast<Foo *>((bar()));\n"
"}\n";
const std::string expected("void f ( ) { return bar ( ) ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
}
void strlen1()
{
ASSERT_EQUALS("4", tok("strlen(\"abcd\")"));
{
const char code[] = "void f()\n"
"{\n"
" const char *s = \"abcd\";\n"
" strlen(s);\n"
"}\n";
const char expected[] = "void f ( ) "
"{"
" const char * s ;"
" s = \"abcd\" ;"
" 4 ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "void f()\n"
"{\n"
" const char s [ ] = \"abcd\";\n"
" strlen(s);\n"
"}\n";
const char expected[] = "void f ( ) "
"{"
" const char * s ;"
" s = \"abcd\" ;"
" 4 ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
}
void template1()
{
const char code[] = "template <classname T> void f(T val) { T a; }\n"
"f<int>(10);";
const std::string expected("; f<int> ( 10 ) ; "
"void f<int> ( int val ) { int a ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template2()
{
const char code[] = "template <classname T> class Fred { T a; };\n"
"Fred<int> fred;";
const std::string expected("; ; "
"Fred<int> fred ; "
"class Fred<int> { int a ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template3()
{
const char code[] = "template <classname T, int sz> class Fred { T data[sz]; };\n"
"Fred<float,4> fred;";
const std::string expected("; ; "
"Fred<float,4> fred ; "
"class Fred<float,4> { float data [ 4 ] ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template4()
{
const char code[] = "template <classname T> class Fred { Fred(); };\n"
"Fred<float> fred;";
const std::string expected("; ; "
"Fred<float> fred ; "
"class Fred<float> { Fred<float> ( ) ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template5()
{
const char code[] = "template <classname T> class Fred { };\n"
"template <classname T> Fred<T>::Fred() { }\n"
"Fred<float> fred;";
const std::string expected("; ; "
"; "
"Fred<float> fred ; "
"class Fred<float> { } "
"Fred<float> :: Fred<float> ( ) { }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template6()
{
const char code[] = "template <classname T> class Fred { };\n"
"Fred<float> fred1;\n"
"Fred<float> fred2;";
const std::string expected("; ;"
" Fred<float> fred1 ;"
" Fred<float> fred2 ;"
" class Fred<float> { }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template7()
{
// A template class that is not used => no simplification
{
const char code[] = "template <class T>\n"
"class ABC\n"
"{\n"
"public:\n"
" typedef ABC<T> m;\n"
"\n"
"};\n";
const std::string expected("; ;");
ASSERT_EQUALS(expected, sizeof_(code));
}
{
const char code[] = "template <typename T> class ABC {\n"
"public:\n"
" typedef std::vector<T> type;\n"
"};\n"
"int main() {\n"
" ABC<int>::type v;\n"
" v.push_back(4);\n"
" return 0;\n"
"}\n";
const std::string expected("; ; "
"int main ( ) { "
"std :: vector < int > v ; "
"v . push_back ( 4 ) ; "
"return 0 ; "
"}");
TODO_ASSERT_EQUALS(expected, sizeof_(code));
}
{
const char code[] = "template <typename T> class ABC {\n"
"public:\n"
" typedef std::vector<T> type;\n"
" void f()\n"
" {\n"
" ABC<int>::type v;\n"
" v.push_back(4);\n"
" }\n"
"};\n";
const std::string expected("; ;");
ASSERT_EQUALS(expected, sizeof_(code));
}
}
// Template definitions but no usage => no expansion
void template8()
{
const char code[] = "template<typename T> class A;\n"
"template<typename T> class B;\n"
"\n"
"typedef A<int> x;\n"
"typedef B<int> y;\n"
"\n"
"template<typename T> class A {\n"
" void f() {\n"
" B<T> a = B<T>::g();\n"
" T b = 0;\n"
" if (b)\n"
" b = 0;\n"
" }\n"
"};\n"
"\n"
"template<typename T> inline B<T> h() { return B<T>(); }\n";
ASSERT_EQUALS("; ; typedef A < int > x ; typedef B < int > y ; ; ; ;", sizeof_(code));
ASSERT_EQUALS("class A { ; } ;", sizeof_("class A{ template<typename T> int foo(T d);};"));
}
void template9()
{
const char code[] = "template < typename T > class A { } ;\n"
"\n"
"void f ( ) {\n"
" A<int> a ;\n"
"}\n"
"\n"
"template < typename T >\n"
"class B {\n"
" void g ( ) {\n"
" A < T > b = A < T > :: h ( ) ;\n"
" }\n"
"} ;\n";
// The expected result..
std::string expected("; ; void f ( ) { A<int> a ; } ; ; class A<int> { }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template10()
{
const char code[] = "template <int ui, typename T> T * foo()\n"
"{ return new T[ui]; }\n"
"\n"
"void f ( )\n"
"{\n"
" foo<3,int>();\n"
"}\n";
// The expected result..
const std::string expected("; "
"void f ( ) "
"{"
" foo<3,int> ( ) ; "
"} "
"int * foo<3,int> ( ) { return new int [ 3 ] ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template11()
{
const char code[] = "template <int ui, typename T> T * foo()\n"
"{ return new T[ui]; }\n"
"\n"
"void f ( )\n"
"{\n"
" char * p = foo<3,char>();\n"
"}\n";
// The expected result..
const std::string expected("; "
"void f ( ) "
"{"
" char * p ; p = foo<3,char> ( ) ; "
"} "
"char * foo<3,char> ( ) { return new char [ 3 ] ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template12()
{
const char code[] = "template <int x, int y, int z>\n"
"class A : public B<x, y, (x - y) ? ((y < z) ? 1 : -1) : 0>\n"
"{ };\n"
"\n"
"void f()\n"
"{\n"
" A<12,12,11> a;\n"
"}\n";
// The expected result..
const std::string expected("; ; "
"void f ( ) "
"{"
" A<12,12,11> a ; "
"} "
"class A<12,12,11> : public B < 12 , 12 , 0 > "
"{ }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template13()
{
const char code[] = "class BB {};\n"
"\n"
"template <class T>\n"
"class AA\n"
"{\n"
"public:\n"
" static AA<T> create(T* newObject);\n"
"};\n"
"\n"
"class CC { public: CC(AA<BB>, int) {} };\n"
"\n"
"class XX {\n"
" AA<CC> y;\n"
"public:\n"
" XX();\n"
"};\n"
"\n"
"XX::XX():\n"
" y(AA<CC>::create(new CC(AA<BB>(), 0)))\n"
" {}\n";
// Just run it and check that there are not assertions.
sizeof_(code);
}
void template14()
{
const char code[] = "template <> void foo<int *>()\n"
"{ x(); }\n"
"\n"
"int main()\n"
"{\n"
"foo<int*>();\n"
"}\n";
// The expected result..
const std::string expected("void foo<int*> ( ) "
"{ x ( ) ; } "
"int main ( ) "
"{ foo<int*> ( ) ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template15()
{
const char code[] = "template <unsigned int i> void a()\n"
"{\n"
" a<i-1>();\n"
"}\n"
"\n"
"template <> void a<0>()\n"
"{ }\n"
"\n"
"int main()\n"
"{\n"
" a<2>();\n"
" return 0;\n"
"}\n";
// The expected result..
const std::string expected("; "
"void a<0> ( ) { } "
"int main ( ) "
"{ a<2> ( ) ; return 0 ; } "
"void a<2> ( ) { a<1> ( ) ; } "
"void a<1> ( ) { a<0> ( ) ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
void template16()
{
const char code[] = "template <unsigned int i> void a()\n"
"{ }\n"
"\n"
"template <unsigned int i> void b()\n"
"{ a<i>(); }\n"
"\n"
"int main()\n"
"{\n"
" b<2>();\n"
" return 0;\n"
"}\n";
// The expected result..
const std::string expected("; "
"; "
"int main ( ) { b<2> ( ) ; return 0 ; } "
"void b<2> ( ) { a<2> ( ) ; } "
"void a<2> ( ) { }");
TODO_ASSERT_EQUALS(expected, sizeof_(code));
}
void template17()
{
const char code[] = "template<class T>\n"
"class Fred\n"
"{\n"
" template<class T>\n"
" static shared_ptr< Fred<T> > CreateFred()\n"
" {\n"
" }\n"
"};\n"
"\n"
"shared_ptr<int> i;\n";
// Assert that there are not segmentation fault..
sizeof_(code);
}
void template_default_parameter()
{
{
const char code[] = "template <class T, int n=3>\n"
"class A\n"
"{ T ar[n]; };\n"
"\n"
"void f()\n"
"{\n"
" A<int,2> a1;\n"
" A<int> a2;\n"
"}\n";
// The expected result..
const std::string expected("; ; "
"void f ( ) "
"{"
" A<int,2> a1 ;"
" A<int,3> a2 ; "
"} "
"class A<int,2> "
"{ int ar [ 2 ] ; } "
"class A<int,3> "
"{ int ar [ 3 ] ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
{
const char code[] = "template <class T, int n1=3, int n2=2>\n"
"class A\n"
"{ T ar[n1+n2]; };\n"
"\n"
"void f()\n"
"{\n"
" A<int> a1;\n"
" A<int,3> a2;\n"
"}\n";
// The expected result..
const std::string expected("; ; "
"void f ( ) "
"{"
" A<int,3,2> a1 ;"
" A<int,3,2> a2 ; "
"} "
"class A<int,3,2> "
"{ int ar [ 5 ] ; }");
ASSERT_EQUALS(expected, sizeof_(code));
}
{
const char code[] = "template <class T, int n=3>\n"
"class A\n"
"{ T ar[n]; };\n"
"\n"
"void f()\n"
"{\n"
" A<int,(int)2> a1;\n"
" A<int> a2;\n"
"}\n";
// The expected result..
const std::string expected("template < class T , int n >"
" class A"
" { T ar [ n ] ; } ;"
" void f ( )"
" {"
" A<int,(int)2> a1 ;"
" A<int,3> a2 ;"
" }"
" class A<int,2>"
" { int ar [ 2 ] ; }"
" class A<int,3>"
" { int ar [ 3 ] ; }");
TODO_ASSERT_EQUALS(expected, sizeof_(code));
}
}
void template_default_type()
{
const char code[] = "template <typename T, typename U=T>\n"
"class A\n"
"{\n"
"public:\n"
" void foo() {\n"
" int a;\n"
" a = static_cast<U>(a);\n"
" }\n"
"};\n"
"\n"
"template <typename T>\n"
"class B\n"
"{\n"
"protected:\n"
" A<int> a;\n"
"};\n"
"\n"
"class C\n"
" : public B<int>\n"
"{\n"
"};\n";
errout.str("");
Settings settings;
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
tokenizer.tokenize(istr, "file1.cpp");
tokenizer.simplifyTokenList();
//ASSERT_EQUALS("[file1.cpp:15]: (error) Internal error: failed to instantiate template. The checking continues anyway.\n", errout.str());
ASSERT_EQUALS("", errout.str());
}
void template_typename()
{
const char code[] = "template <class T>\n"
"void foo(typename T::t *)\n"
"{ }";
// The expected result..
const std::string expected(";");
ASSERT_EQUALS(expected, sizeof_(code));
}
void namespaces()
{
{
const char code[] = "using namespace std; namespace a{ namespace b{ void f(){} } }";
const std::string expected("using namespace std ; void f ( ) { }");
ASSERT_EQUALS(expected, sizeof_(code));
}
{
const char code[] = "namespace b{ void f(){} }";
const std::string expected("void f ( ) { }");
ASSERT_EQUALS(expected, sizeof_(code));
}
{
const char code[] = "int a; namespace b{ }";
const std::string expected("int a ;");
ASSERT_EQUALS(expected, sizeof_(code));
}
}
std::string simplifyIfAssign(const char code[])
{
// tokenize..
Tokenizer tokenizer;
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp");
tokenizer.simplifyIfAssign();
std::ostringstream ostr;
for (const Token *tok = tokenizer.tokens(); tok; tok = tok->next())
ostr << (tok->previous() ? " " : "") << tok->str();
return ostr.str();
}
void ifassign1()
{
ASSERT_EQUALS("; a = b ; if ( a ) { ; }", simplifyIfAssign(";if(a=b);"));
ASSERT_EQUALS("; a = b ( ) ; if ( ( a ) ) { ; }", simplifyIfAssign(";if((a=b()));"));
ASSERT_EQUALS("; a = b ( ) ; if ( ! ( a ) ) { ; }", simplifyIfAssign(";if(!(a=b()));"));
ASSERT_EQUALS("; a . x = b ( ) ; if ( ! ( a . x ) ) { ; }", simplifyIfAssign(";if(!(a->x=b()));"));
ASSERT_EQUALS("A ( ) a = b ; if ( a ) { ; }", simplifyIfAssign("A() if(a=b);"));
ASSERT_EQUALS("void foo ( int a ) { a = b ( ) ; if ( 0 <= a ) { ; } }", tok("void foo(int a) {if((a=b())>=0);}"));
TODO_ASSERT_EQUALS("void foo ( A a ) { a . c = b ( ) ; if ( 0 <= a . c ) { ; } }", tok("void foo(A a) {if((a.c=b())>=0);}"));
}
void whileAssign()
{
ASSERT_EQUALS("; a = b ; while ( a ) { b = 0 ; a = b ; }", simplifyIfAssign(";while(a=b) { b = 0; }"));
ASSERT_EQUALS("; a . b = c ; while ( a . b ) { c = 0 ; a . b = c ; }", simplifyIfAssign(";while(a.b=c) { c=0; }"));
ASSERT_EQUALS("struct hfs_bnode * node ; "
"struct hfs_btree * tree ; "
"node = tree . node_hash [ i ++ ] ; "
"while ( node ) { node = tree . node_hash [ i ++ ] ; }",
tok("struct hfs_bnode *node;"
"struct hfs_btree *tree;"
"while ((node = tree->node_hash[i++])) { }"));
}
std::string simplifyIfNot(const char code[])
{
// tokenize..
Tokenizer tokenizer;
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp");
tokenizer.simplifyIfNot();
std::ostringstream ostr;
for (const Token *tok = tokenizer.tokens(); tok; tok = tok->next())
ostr << (tok->previous() ? " " : "") << tok->str();
return ostr.str();
}
void ifnot()
{
ASSERT_EQUALS("if ( ! x )", simplifyIfNot("if(0==x)"));
ASSERT_EQUALS("if ( ! x )", simplifyIfNot("if(x==0)"));
ASSERT_EQUALS("if ( ! ( a = b ) )", simplifyIfNot("if(0==(a=b))"));
ASSERT_EQUALS("if ( ! x )", simplifyIfNot("if(x==0)"));
ASSERT_EQUALS("if ( ! a && b ( ) )", simplifyIfNot("if( 0 == a && b() )"));
ASSERT_EQUALS("if ( b ( ) && ! a )", simplifyIfNot("if( b() && 0 == a )"));
ASSERT_EQUALS("if ( ! ( a = b ) )", simplifyIfNot("if((a=b)==0)"));
ASSERT_EQUALS("if ( ! x . y )", simplifyIfNot("if(x.y==0)"));
ASSERT_EQUALS("if ( ( ! x ) )", simplifyIfNot("if((x==0))"));
ASSERT_EQUALS("if ( ( ! x ) && ! y )", simplifyIfNot("if((x==0) && y==0)"));
ASSERT_EQUALS("if ( ! ( ! fclose ( fd ) ) )", simplifyIfNot("if(!(fclose(fd) == 0))"));
}
std::string simplifyLogicalOperators(const char code[])
{
// tokenize..
Tokenizer tokenizer;
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp");
tokenizer.simplifyLogicalOperators();
std::ostringstream ostr;
for (const Token *tok = tokenizer.tokens(); tok; tok = tok->next())
ostr << (tok->previous() ? " " : "") << tok->str();
return ostr.str();
}
void not1()
{
ASSERT_EQUALS("if ( ! p )", simplifyLogicalOperators("if (not p)"));
ASSERT_EQUALS("if ( p && ! q )", simplifyLogicalOperators("if (p && not q)"));
ASSERT_EQUALS("void foo ( not i )", simplifyLogicalOperators("void foo ( not i )"));
}
void and1()
{
ASSERT_EQUALS("if ( p && q ) { ; }",
simplifyLogicalOperators("if (p and q) ;"));
ASSERT_EQUALS("if ( foo ( ) && q ) { ; }",
simplifyLogicalOperators("if (foo() and q) ;"));
ASSERT_EQUALS("if ( foo ( ) && bar ( ) ) { ; }",
simplifyLogicalOperators("if (foo() and bar()) ;"));
ASSERT_EQUALS("if ( p && bar ( ) ) { ; }",
simplifyLogicalOperators("if (p and bar()) ;"));
}
void comma_keyword()
{
{
const char code[] = "void foo()\n"
"{\n"
" char *a, *b;\n"
" delete a, delete b;\n"
"}\n";
ASSERT_EQUALS("void foo ( ) { char * a ; char * b ; delete a ; delete b ; }", sizeof_(code));
}
{
const char code[] = "void foo()\n"
"{\n"
" struct A *a, *b;\n"
"}\n";
ASSERT_EQUALS("void foo ( ) { struct A * a ; struct A * b ; }", sizeof_(code));
}
{
const char code[] = "void foo()\n"
"{\n"
" struct A **a, **b;\n"
"}\n";
ASSERT_EQUALS("void foo ( ) { struct A * * a ; struct A * * b ; }", sizeof_(code));
}
{
const char code[] = "void foo()\n"
"{\n"
" char *a, *b;\n"
" delete a, b;\n"
"}\n";
ASSERT_EQUALS("void foo ( ) { char * a ; char * b ; delete a ; delete b ; }", sizeof_(code));
}
{
const char code[] = "void foo()\n"
"{\n"
" char **a, **b, **c;\n"
"}\n";
ASSERT_EQUALS("void foo ( ) { char * * a ; char * * b ; char * * c ; }", sizeof_(code));
}
{
const char code[] = "int f()\n"
"{\n"
" if (something)\n"
" return a(2, c(3, 4)), b(3), 10;\n"
" return a(), b(0, 0, 0), 10;\n"
"}\n";
ASSERT_EQUALS("int f ( )"
" {"
" if ( something )"
" {"
" a ( 2 , c ( 3 , 4 ) ) ;"
" b ( 3 ) ;"
" return 10 ;"
" }"
" a ( ) ;"
" b ( 0 , 0 , 0 ) ;"
" return 10 ; "
"}", sizeof_(code));
}
{
const char code[] = "void foo()\n"
"{\n"
" delete [] a, a = 0;\n"
"}\n";
ASSERT_EQUALS("void foo ( ) { delete [ ] a ; a = 0 ; }", sizeof_(code));
}
{
const char code[] = "void foo()\n"
"{\n"
" delete a, a = 0;\n"
"}\n";
ASSERT_EQUALS("void foo ( ) { delete a ; a = 0 ; }", sizeof_(code));
}
{
const char code[] = "void f()\n"
"{\n"
" for(int a,b; a < 10; a = a + 1, b = b + 1);\n"
"}\n";
ASSERT_EQUALS("void f ( ) { for ( int a , b ; a < 10 ; a = a + 1 , b = b + 1 ) { ; } }", sizeof_(code));
}
{
const char code[] = "typedef enum { a = 0 , b = 1 , c = 2 } abc ;";
ASSERT_EQUALS(code, sizeof_(code));
}
{
const char code[] = "void f()\n"
"{\n"
" char buf[BUFSIZ], **p;\n"
" char *ptrs[BUFSIZ], **pp;\n"
"}\n";
ASSERT_EQUALS("void f ( ) { char buf [ BUFSIZ ] ; char * * p ; char * ptrs [ BUFSIZ ] ; char * * pp ; }", sizeof_(code));
}
}
void remove_comma()
{
{
const char code[] = "void f()\n"
"{\n"
" int a,b;\n"
" if( a )\n"
" a=0,\n"
" b=0;\n"
"}\n";
ASSERT_EQUALS("void f ( ) { int a ; int b ; if ( a ) { a = 0 ; b = 0 ; } }", sizeof_(code));
}
{
const char code[] = "void f()\n"
"{\n"
" A a,b;\n"
" if( a.f )\n"
" a.f=b.f,\n"
" a.g=b.g;\n"
"}\n";
ASSERT_EQUALS("void f ( ) { A a ; A b ; if ( a . f ) { a . f = b . f ; a . g = b . g ; } }", sizeof_(code));
}
// keep the comma in template specifiers..
{
const char code[] = "void f()\n"
"{\n"
" int a = b<T<char,3>, int>();\n"
"}\n";
ASSERT_EQUALS("void f ( ) { int a ; a = b < T < char , 3 > , int > ( ) ; }", sizeof_(code));
}
}
void conditionOperator()
{
{
const char code[] = "; x = a ? b : c;";
ASSERT_EQUALS("; if ( a ) { x = b ; } else { x = c ; }", tok(code));
}
{
const char code[] = "(0?(false?1:2):3)";
ASSERT_EQUALS("( 3 )", tok(code));
}
{
const char code[] = "(1?(false?1:2):3)";
ASSERT_EQUALS("( 2 )", tok(code));
}
{
const char code[] = "int a = (1?0:1 == 1?0:1);";
ASSERT_EQUALS("int a ; a = 0 ;", tok(code));
}
{
const char code[] = "(1?0:foo())";
ASSERT_EQUALS("( 0 )", tok(code));
}
{
const char code[] = "( true ? a ( ) : b ( ) )";
ASSERT_EQUALS("( a ( ) )", tok(code));
}
{
const char code[] = "( true ? abc . a : abc . b )";
ASSERT_EQUALS("( abc . a )", tok(code));
}
{
const char code[] = "void f()\n"
"{\n"
" bool x = false;\n"
" int b = x ? 44 : 3;\n"
"}\n";
ASSERT_EQUALS("void f ( ) { bool x ; x = false ; int b ; b = 3 ; }", tok(code));
}
{
const char code[] = "int vals[] = { 0x13, 1?0x01:0x00 };";
ASSERT_EQUALS("int * vals ; vals = { 19 , 1 } ;", tok(code));
}
{
const char code[] = "int vals[] = { 0x13, 0?0x01:0x00 };";
ASSERT_EQUALS("int * vals ; vals = { 19 , 0 } ;", tok(code));
}
}
void calculations()
{
{
const char code[] = "a[i+8+2]";
ASSERT_EQUALS("a [ i + 10 ]", tok(code));
}
{
const char code[] = "a[8+2+i]";
ASSERT_EQUALS("a [ 10 + i ]", tok(code));
}
{
const char code[] = "a[i + 2 * (2 * 4)]";
ASSERT_EQUALS("a [ i + 16 ]", tok(code));
}
{
const char code[] = "a[i + 100 - 90]";
ASSERT_EQUALS("a [ i + 10 ]", tok(code));
}
{
const char code[] = "a[1+1+1+1+1+1+1+1+1+1-2+5-3]";
ASSERT_EQUALS("a [ 10 ]", tok(code));
}
{
const char code[] = "a[10+10-10-10]";
ASSERT_EQUALS("a [ 0 ]", tok(code));
}
ASSERT_EQUALS("x = 1 + 2 * y ;", tok("x=1+2*y;"));
ASSERT_EQUALS("x = 7 ;", tok("x=1+2*3;"));
ASSERT_EQUALS("x = 47185 ;", tok("x=(65536*72/100);"));
ASSERT_EQUALS("x = 900 ;", tok("x = 1500000 / ((145000 - 55000) * 1000 / 54000);"));
}
void goto1()
{
{
const char code[] = "void foo()\n"
"{\n"
" if (a())\n"
" {\n"
" goto out;\n"
" }\n"
" b();\n"
"out:\n"
" c();\n"
"}";
std::istringstream istr(code);
Tokenizer tokenizer;
tokenizer.tokenize(istr, "test.cpp");
tokenizer.simplifyTokenList();
tokenizer.validate();
const char expect[] = "\n\n##file 0\n"
"1: void foo ( )\n"
"2: {\n"
"3: if ( a ( ) )\n"
"4: {\n"
"5:\n6:\n7:\n8:\n"
"9: c ( ) ; return ; }\n"
"7: b ( ) ;\n"
"8:\n"
"9: c ( ) ;\n"
"10: }\n";
ASSERT_EQUALS(expect, tokenizer.tokens()->stringifyList(""));
}
{
const char code[] = "void foo()\n"
"{\n"
" if (a())\n"
" goto out;\n"
" b();\n"
"out:\n"
" if (c())\n"
" d();\n"
"}";
std::istringstream istr(code);
Tokenizer tokenizer;
tokenizer.tokenize(istr, "test.cpp");
tokenizer.simplifyTokenList();
tokenizer.validate();
const char expect[] = "\n\n##file 0\n"
"1: void foo ( )\n"
"2: {\n"
"3: if ( a ( ) ) {\n"
"4:\n5:\n6:\n"
"7: if ( c ( ) ) {\n"
"8: d ( ) ; } return ; }\n"
"5: b ( ) ;\n"
"6:\n"
"7: if ( c ( ) ) {\n"
"8: d ( ) ; }\n"
"9: }\n";
ASSERT_EQUALS(expect, tokenizer.tokens()->stringifyList(""));
}
{
const char code[] = "void foo()\n"
"{\n"
" if (a())\n"
" goto out;\n"
" b();\n"
"out:\n"
" if (c())\n"
" {\n"
" d();\n"
" }\n"
"}";
const char expect[] = "void foo ( ) "
"{ "
"if ( a ( ) ) "
"{ "
"if ( c ( ) ) "
"{ d ( ) ; } "
"return ; "
"} "
"b ( ) ; "
"if ( c ( ) ) "
"{ d ( ) ; } "
"}";
ASSERT_EQUALS(expect, tok(code));
}
{
const char code[] = "void foo(int x)\n"
"{\n"
" if (a())\n"
" goto out;\n"
" b();\n"
"out:\n"
" if (x)\n"
" {\n"
" x++; b[0]=x;\n"
" }\n"
"}";
const char expect[] = "void foo ( int x ) "
"{ "
"if ( a ( ) ) "
"{ "
"if ( x ) "
"{ x ++ ; b [ 0 ] = x ; } "
"return ; "
"} "
"b ( ) ; "
"if ( x ) "
"{ x ++ ; b [ 0 ] = x ; } "
"}";
ASSERT_EQUALS(expect, tok(code));
}
{
const char code[] = "class NoLabels { bool varOne : 1 ; bool varTwo : 1 ; } ;";
ASSERT_EQUALS(code, tok(code));
}
{
const char code[] = "void foo ( ) { int var ; var = x < y ? y : z ; } ;";
ASSERT_EQUALS(code, tok(code));
}
}
void strcat1()
{
const char code[] = "; strcat(strcat(strcat(strcat(strcat(strcat(dst, \"this \"), \"\"), \"is \"), \"a \"), \"test\"), \".\");";
const char expect[] = "; "
"strcat ( dst , \"this \" ) ; "
"strcat ( dst , \"\" ) ; "
"strcat ( dst , \"is \" ) ; "
"strcat ( dst , \"a \" ) ; "
"strcat ( dst , \"test\" ) ; "
"strcat ( dst , \".\" ) ;";
ASSERT_EQUALS(expect, tok(code));
}
void strcat2()
{
const char code[] = "; strcat(strcat(dst, foo[0]), \" \");";
const char expect[] = "; "
"strcat ( dst , foo [ 0 ] ) ; "
"strcat ( dst , \" \" ) ;";
ASSERT_EQUALS(expect, tok(code));
}
void argumentsWithSameName()
{
// This code has syntax error, two variables can not have the same name
{
const char code[] = "void foo(x, x)\n"
" int x;\n"
" int x;\n"
"{}\n";
ASSERT_EQUALS("void foo ( x , x ) int x ; int x ; { }", tok(code));
}
{
const char code[] = "void foo(x, y)\n"
" int x;\n"
" int x;\n"
"{}\n";
ASSERT_EQUALS("void foo ( int x , y ) int x ; { }", tok(code));
}
}
void simplifyAtol()
{
ASSERT_EQUALS("a = std :: atol ( x ) ;", tok("a = std::atol(x);"));
ASSERT_EQUALS("a = atol ( \"text\" ) ;", tok("a = atol(\"text\");"));
ASSERT_EQUALS("a = 0 ;", tok("a = std::atol(\"0\");"));
ASSERT_EQUALS("a = 10 ;", tok("a = atol(\"0xa\");"));
}
void simplifyHexInString()
{
ASSERT_EQUALS("\"a\"", tok("\"\\x61\""));
ASSERT_EQUALS("\"a\"", tok("\"\\141\""));
ASSERT_EQUALS("\"\\0\"", tok("\"\\x00\""));
ASSERT_EQUALS("\"\\0\"", tok("\"\\000\""));
ASSERT_EQUALS("\"\\nhello\"", tok("\"\\nhello\""));
ASSERT_EQUALS("\"aaa\"", tok("\"\\x61\\x61\\x61\""));
ASSERT_EQUALS("\"aaa\"", tok("\"\\141\\141\\141\""));
ASSERT_EQUALS("\"\\\\x61\"", tok("\"\\\\x61\""));
// These tests can fail, if other characters are handled
// more correctly. But fow now all non null characters should
// become 'a'
ASSERT_EQUALS("\"a\"", tok("\"\\x62\""));
ASSERT_EQUALS("\"a\"", tok("\"\\177\""));
}
void simplifyTypedef()
{
const char code[] = "class A\n"
"{\n"
"public:\n"
" typedef wchar_t duplicate;\n"
" void foo() {}\n"
"};\n"
"typedef A duplicate;\n"
"int main()\n"
"{\n"
" duplicate a;\n"
" a.foo();\n"
" A::duplicate c = 0;\n"
"}\n";
const std::string expected =
"class A "
"{ "
"public: "
"typedef wchar_t duplicate ; "
"void foo ( ) { } "
"} ; "
"typedef A duplicate ; "
"int main ( ) "
"{ "
"A a ; "
"a . foo ( ) ; "
"wchar_t c ; c = 0 ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyTypedef2()
{
const char code[] = "class A;\n"
"typedef A duplicate;\n"
"class A\n"
"{\n"
"public:\n"
"typedef wchar_t duplicate;\n"
"duplicate foo() { wchar_t b; return b; }\n"
"};\n";
const std::string expected =
"class A ; "
"typedef A duplicate ; "
"class A "
"{ "
"public: "
"typedef wchar_t duplicate ; "
"wchar_t foo ( ) { wchar_t b ; return b ; } "
"} ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyTypedef3()
{
const char code[] = "class A {};\n"
"typedef A duplicate;\n"
"wchar_t foo()\n"
"{\n"
"typedef wchar_t duplicate;\n"
"duplicate b;\n"
"return b;\n"
"}\n"
"int main()\n"
"{\n"
"duplicate b;\n"
"}\n";
const std::string expected =
"class A { } ; "
"typedef A duplicate ; "
"wchar_t foo ( ) "
"{ "
"typedef wchar_t duplicate ; "
"wchar_t b ; "
"return b ; "
"} "
"int main ( ) "
"{ "
"A b ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyTypedef4()
{
const char code[] = "typedef int s32;\n"
"typedef unsigned int u32;\n"
"void f()\n"
"{\n"
" s32 ivar = -2;\n"
" u32 uvar = 2;\n"
" return uvar / ivar;\n"
"}\n";
const std::string expected =
"typedef int s32 ; "
"typedef unsigned int u32 ; "
"void f ( ) "
"{ "
"int ivar ; ivar = -2 ; "
"unsigned int uvar ; uvar = 2 ; "
"return uvar / ivar ; "
"}";
ASSERT_EQUALS(expected, tok(code, false));
}
void simplifyTypedef5()
{
// ticket #780
const char code[] =
"typedef struct yy_buffer_state *YY_BUFFER_STATE;\n"
"void f()\n"
"{\n"
" YY_BUFFER_STATE state;\n"
"}\n";
const char expected[] =
"typedef struct yy_buffer_state * YY_BUFFER_STATE ; "
"void f ( ) "
"{ "
"struct yy_buffer_state * state ; "
"}";
ASSERT_EQUALS(expected, tok(code, false));
}
void simplifyTypedef6()
{
// ticket #983
const char code[] =
"namespace VL {\n"
" typedef float float_t ;\n"
" inline VL::float_t fast_atan2(VL::float_t y, VL::float_t x){}\n"
"}\n";
const char expected[] =
"namespace VL { "
"typedef float float_t ; "
"inline float fast_atan2 ( float y , float x ) { } "
"}";
ASSERT_EQUALS(expected, tok(code, false));
}
void simplifyTypedef7()
{
const char code[] = "typedef int abc ; "
"Fred :: abc f ;";
ASSERT_EQUALS(code, tok(code, false));
}
void simplifyTypedef8()
{
const char code[] = "typedef int INT;\n"
"typedef unsigned int UINT;\n"
"typedef int * PINT;\n"
"typedef unsigned int * PUINT;\n"
"typedef struct s S, * PS\n;"
"typedef struct t { int a; } T, *TP;"
"INT ti;\n"
"UINT tui;\n"
"PINT tpi;\n"
"PUINT tpui;"
"S s;\n"
"PS ps;\n"
"T t;\n"
"TP tp;\n";
const char expected[] =
"typedef int INT ; "
"typedef unsigned int UINT ; "
"typedef int * PINT ; "
"typedef unsigned int * PUINT ; "
"typedef struct s S ; typedef struct s * PS ; "
"struct t { int a ; } ; typedef struct t T ; typedef struct t * TP ; "
"int ti ; "
"unsigned int tui ; "
"int * tpi ; "
"unsigned int * tpui ; "
"struct s s ; "
"struct s * ps ; "
"struct t t ; "
"struct t * tp ;";
ASSERT_EQUALS(expected, tok(code, false));
}
void reverseArraySyntax()
{
ASSERT_EQUALS("a [ 13 ]", tok("13[a]"));
}
void simplify_numeric_condition()
{
{
const char code[] =
"void f()\n"
"{\n"
"int x = 0;\n"
"if( !x || 0 )\n"
"{ g();\n"
"}\n"
"}";
ASSERT_EQUALS("void f ( ) { int x ; x = 0 ; { g ( ) ; } }", tok(code));
}
{
const char code[] =
"void f()\n"
"{\n"
"int x = 1;\n"
"if( !x )\n"
"{ g();\n"
"}\n"
"}";
ASSERT_EQUALS("void f ( ) { int x ; x = 1 ; }", tok(code));
}
{
const char code[] =
"void f()\n"
"{\n"
"bool x = true;\n"
"if( !x )\n"
"{ g();\n"
"}\n"
"}";
ASSERT_EQUALS("void f ( ) { bool x ; x = true ; }", tok(code));
}
{
const char code[] =
"void f()\n"
"{\n"
"bool x = false;\n"
"if( !x )\n"
"{ g();\n"
"}\n"
"}";
ASSERT_EQUALS("void f ( ) { bool x ; x = false ; { g ( ) ; } }", tok(code));
}
{
const char code[] = "void f()\n"
"{\n"
" if (5==5);\n"
"}\n";
ASSERT_EQUALS("void f ( ) { { ; } }", tok(code));
}
{
const char code[] = "void f()\n"
"{\n"
" if (4<5);\n"
"}\n";
ASSERT_EQUALS("void f ( ) { { ; } }", tok(code));
}
{
const char code[] = "void f()\n"
"{\n"
" if (5<5);\n"
"}\n";
ASSERT_EQUALS("void f ( ) { }", tok(code));
}
{
const char code[] = "void f()\n"
"{\n"
" if (13>12?true:false);\n"
"}\n";
ASSERT_EQUALS("void f ( ) { { ; } }", tok(code));
}
}
void pointeralias()
{
{
const char code[] = "void f()\n"
"{\n"
" char buf[100];\n"
" char *p = buf;\n"
" x(p);\n"
"}\n";
const char expected[] = "void f ( ) "
"{ "
"char buf [ 100 ] ; "
"char * p ; p = buf ; "
"x ( buf ) ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "void f(char *p1)\n"
"{\n"
" char *p = p1;\n"
" p1 = 0;"
" x(p);\n"
"}\n";
const char expected[] = "void f ( char * p1 ) "
"{ "
"char * p ; p = p1 ; "
"p1 = 0 ; "
"x ( p ) ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "void foo(Result* ptr)\n"
"{\n"
" Result* obj = ptr;\n"
" ++obj->total;\n"
"}\n";
const char expected[] = "void foo ( Result * ptr ) "
"{ "
"Result * obj ; obj = ptr ; "
"++ obj . total ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
}
void reduceConstness()
{
ASSERT_EQUALS("char * p ;", tok("char * const p;"));
}
};
REGISTER_TEST(TestSimplifyTokens)
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