474 lines
14 KiB
C++
474 lines
14 KiB
C++
//---------------------------------------------------------------------------
|
|
#include "CheckClass.h"
|
|
#include "tokenize.h"
|
|
#include "CommonCheck.h"
|
|
#include <locale>
|
|
#include <list>
|
|
#include <string>
|
|
#include <sstream>
|
|
//---------------------------------------------------------------------------
|
|
|
|
struct VAR
|
|
{
|
|
bool is_class;
|
|
const char *name;
|
|
bool init;
|
|
bool is_pointer;
|
|
struct VAR *next;
|
|
};
|
|
//---------------------------------------------------------------------------
|
|
|
|
static struct VAR *ClassChecking_GetVarList(const char classname[])
|
|
{
|
|
// Locate class..
|
|
const char *pattern[] = {"class","","{",0};
|
|
pattern[1] = classname;
|
|
TOKEN *tok1 = findtoken(tokens, pattern);
|
|
|
|
// All classes..
|
|
struct _class
|
|
{
|
|
const char *name;
|
|
struct _class *next;
|
|
};
|
|
struct _class *classes = NULL;
|
|
const char *pattern_anyclass[] = {"class","",NULL};
|
|
for (TOKEN *t = findtoken(tokens,pattern_anyclass); t; t = findtoken(t->next,pattern_anyclass))
|
|
{
|
|
_class *newclass = new _class;
|
|
newclass->name = t->next->str;
|
|
newclass->next = classes;
|
|
classes = newclass;
|
|
}
|
|
|
|
// Get variable list..
|
|
bool is_class = false;
|
|
bool is_pointer = false;
|
|
struct VAR *varlist = NULL;
|
|
unsigned int indentlevel = 0;
|
|
for (TOKEN *tok = tok1; tok; tok = tok->next)
|
|
{
|
|
if (!tok->next)
|
|
break;
|
|
|
|
if (tok->str[0] == '{')
|
|
indentlevel++;
|
|
if (tok->str[0] == '}')
|
|
{
|
|
if (indentlevel <= 1)
|
|
break;
|
|
indentlevel--;
|
|
}
|
|
|
|
if (strchr(";{}", tok->str[0]))
|
|
is_class = is_pointer = false;
|
|
else if (IsName(tok->str))
|
|
{
|
|
for (_class *c = classes; c; c = c->next)
|
|
is_class |= (strcmp(c->name, tok->str) == 0);
|
|
}
|
|
|
|
if (tok->str[0] == '*')
|
|
is_pointer = true;
|
|
|
|
// Member variable?
|
|
if ((indentlevel == 1) &&
|
|
(tok->next->str[0] == ';') &&
|
|
(IsName(tok->str)) &&
|
|
(strcmp(tok->str,"const") != 0 ))
|
|
{
|
|
struct VAR *var = new VAR;
|
|
memset(var, 0, sizeof(struct VAR));
|
|
var->name = tok->str;
|
|
var->next = varlist;
|
|
var->is_class = is_class;
|
|
var->is_pointer = is_pointer;
|
|
varlist = var;
|
|
}
|
|
}
|
|
|
|
while (classes)
|
|
{
|
|
_class *next = classes->next;
|
|
delete classes;
|
|
classes = next;
|
|
}
|
|
|
|
return varlist;
|
|
}
|
|
//---------------------------------------------------------------------------
|
|
|
|
static TOKEN * ClassChecking_VarList_RemoveAssigned(TOKEN *_tokens, struct VAR *varlist, const char classname[], const char funcname[])
|
|
{
|
|
// Locate class member function
|
|
const char *pattern[] = {"","::","","(",NULL};
|
|
pattern[0] = classname;
|
|
pattern[2] = funcname;
|
|
|
|
// Locate member function implementation..
|
|
TOKEN *ftok = findtoken(_tokens, pattern);
|
|
if (!ftok)
|
|
return NULL;
|
|
|
|
bool BeginLine = false;
|
|
bool Assign = false;
|
|
unsigned int indentlevel = 0;
|
|
for (; ftok; ftok = ftok->next)
|
|
{
|
|
if (!ftok->next)
|
|
break;
|
|
|
|
// Class constructor.. initializing variables like this
|
|
// clKalle::clKalle() : var(value) { }
|
|
if (indentlevel==0 && strcmp(classname,funcname)==0)
|
|
{
|
|
if (Assign &&
|
|
IsName(ftok->str) &&
|
|
ftok->next->str[0]=='(')
|
|
{
|
|
for (struct VAR *var = varlist; var; var = var->next)
|
|
{
|
|
if (strcmp(var->name,ftok->str))
|
|
continue;
|
|
var->init = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
Assign |= (ftok->str[0] == ':');
|
|
}
|
|
|
|
|
|
if (ftok->str[0] == '{')
|
|
{
|
|
indentlevel++;
|
|
Assign = false;
|
|
}
|
|
|
|
if (ftok->str[0] == '}')
|
|
{
|
|
if (indentlevel <= 1)
|
|
break;
|
|
indentlevel--;
|
|
}
|
|
|
|
if (BeginLine && indentlevel>=1 && IsName(ftok->str))
|
|
{
|
|
// Clearing all variables..
|
|
if (match(ftok,"memset ( this ,"))
|
|
{
|
|
for (struct VAR *var = varlist; var; var = var->next)
|
|
var->init = true;
|
|
}
|
|
|
|
// Calling member function?
|
|
if (ftok->next->str[0] == '(')
|
|
ClassChecking_VarList_RemoveAssigned(tokens, varlist, classname, ftok->str);
|
|
|
|
// Assignment of member variable?
|
|
if (strcmp(ftok->next->str, "=") == 0)
|
|
{
|
|
for (struct VAR *var = varlist; var; var = var->next)
|
|
{
|
|
if (strcmp(var->name,ftok->str))
|
|
continue;
|
|
var->init = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Calling member function..
|
|
if (strcmp(ftok->next->str,".")==0 || strcmp(ftok->next->str,"->")==0)
|
|
{
|
|
// The functions 'clear' and 'Clear' are supposed to initialize variable.
|
|
#ifdef __linux__
|
|
if( strcasecmp( ftok->next->next->str,"clear") == 0)
|
|
#else
|
|
if (stricmp(ftok->next->next->str,"clear") == 0)
|
|
#endif
|
|
{
|
|
for (struct VAR *var = varlist; var; var = var->next)
|
|
{
|
|
if (strcmp(var->name,ftok->str))
|
|
continue;
|
|
var->init = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
BeginLine = (strchr("{};", ftok->str[0]));
|
|
}
|
|
|
|
return ftok;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// ClassCheck: Check that all class constructors are ok.
|
|
//---------------------------------------------------------------------------
|
|
|
|
void CheckConstructors()
|
|
{
|
|
// Locate class
|
|
const char *pattern_classname[] = {"class","","{",NULL};
|
|
TOKEN *tok1 = findtoken(tokens, pattern_classname);
|
|
while (tok1)
|
|
{
|
|
const char *classname = tok1->next->str;
|
|
|
|
// Are there a class constructor?
|
|
const char *pattern_constructor[] = {"clKalle","::","clKalle","(",NULL};
|
|
pattern_constructor[0] = classname;
|
|
pattern_constructor[2] = classname;
|
|
if (!findtoken(tokens,pattern_constructor))
|
|
{
|
|
// There's no class implementation, it must be somewhere else.
|
|
tok1 = findtoken( tok1->next, pattern_classname );
|
|
continue;
|
|
}
|
|
|
|
// Check that all member variables are initialized..
|
|
struct VAR *varlist = ClassChecking_GetVarList(classname);
|
|
ClassChecking_VarList_RemoveAssigned(tokens, varlist, classname, classname);
|
|
|
|
// Check if any variables are uninitialized
|
|
for (struct VAR *var = varlist; var; var = var->next)
|
|
{
|
|
if (!var->init && (var->is_pointer || !var->is_class))
|
|
{
|
|
std::ostringstream ostr;
|
|
ostr << "Uninitialized member variable '" << classname << "::" << var->name << "'";
|
|
ReportErr(ostr.str());
|
|
}
|
|
}
|
|
|
|
// Delete the varlist..
|
|
while (varlist)
|
|
{
|
|
struct VAR *nextvar = varlist->next;
|
|
delete varlist;
|
|
varlist = nextvar;
|
|
}
|
|
|
|
tok1 = findtoken( tok1->next, pattern_classname );
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// ClassCheck: Unused private functions
|
|
//---------------------------------------------------------------------------
|
|
|
|
void CheckUnusedPrivateFunctions()
|
|
{
|
|
// Locate some class
|
|
const char *pattern_class[] = {"class","","{",NULL};
|
|
for (TOKEN *tok1 = findtoken(tokens, pattern_class); tok1; tok1 = findtoken(tok1->next, pattern_class))
|
|
{
|
|
const char *classname = tok1->next->str;
|
|
|
|
// The class implementation must be available..
|
|
const char *pattern_classconstructor[] = {"","::","",NULL};
|
|
pattern_classconstructor[0] = classname;
|
|
pattern_classconstructor[2] = classname;
|
|
if (!findtoken(tokens,pattern_classconstructor))
|
|
continue;
|
|
|
|
// Get private functions..
|
|
std::list<std::string> FuncList;
|
|
FuncList.clear();
|
|
bool priv = false;
|
|
unsigned int indent_level = 0;
|
|
for (TOKEN *tok = tok1; tok; tok = tok->next)
|
|
{
|
|
if (match(tok,"friend class"))
|
|
{
|
|
// Todo: Handle friend classes
|
|
FuncList.clear();
|
|
break;
|
|
}
|
|
|
|
if (tok->str[0] == '{')
|
|
indent_level++;
|
|
if (tok->str[0] == '}')
|
|
{
|
|
if (indent_level <= 1)
|
|
break;
|
|
indent_level--;
|
|
}
|
|
if (strcmp(tok->str,"};") == 0)
|
|
break;
|
|
if (strcmp(tok->str,"private:") == 0)
|
|
priv = true;
|
|
else if (strcmp(tok->str,"public:") == 0)
|
|
priv = false;
|
|
else if (strcmp(tok->str,"protected:") == 0)
|
|
priv = false;
|
|
else if (priv && indent_level == 1)
|
|
{
|
|
if (std::isalpha(tok->str[0]) &&
|
|
tok->next->str[0]=='(' &&
|
|
strcmp(tok->str,classname) != 0)
|
|
{
|
|
FuncList.push_back(tok->str);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check that all private functions are used..
|
|
const char *pattern_function[] = {"","::",NULL};
|
|
pattern_function[0] = classname;
|
|
bool HasFuncImpl = false;
|
|
for (TOKEN *ftok = findtoken(tokens, pattern_function); ftok; ftok = findtoken(ftok->next,pattern_function))
|
|
{
|
|
int numpar = 0;
|
|
while (ftok && ftok->str[0]!=';' && ftok->str[0]!='{')
|
|
{
|
|
if (ftok->str[0] == '(')
|
|
numpar++;
|
|
else if (ftok->str[0] == ')')
|
|
numpar--;
|
|
ftok = ftok->next;
|
|
}
|
|
|
|
if (!ftok)
|
|
break;
|
|
|
|
if (ftok->str[0] == ';')
|
|
continue;
|
|
|
|
if (numpar != 0)
|
|
continue;
|
|
|
|
HasFuncImpl = true;
|
|
|
|
indent_level = 0;
|
|
while (ftok)
|
|
{
|
|
if (ftok->str[0] == '{')
|
|
indent_level++;
|
|
if (ftok->str[0] == '}')
|
|
{
|
|
if (indent_level<=1)
|
|
break;
|
|
indent_level--;
|
|
}
|
|
if (ftok->next && ftok->next->str[0] == '(')
|
|
FuncList.remove(ftok->str);
|
|
ftok = ftok->next;
|
|
}
|
|
}
|
|
|
|
while (HasFuncImpl && !FuncList.empty())
|
|
{
|
|
bool fp = false;
|
|
|
|
// Final check; check if the function pointer is used somewhere..
|
|
const char *_pattern[] = {"=","",NULL};
|
|
_pattern[1] = FuncList.front().c_str();
|
|
fp |= (findtoken(tokens, _pattern) != NULL);
|
|
_pattern[0] = "(";
|
|
fp |= (findtoken(tokens, _pattern) != NULL);
|
|
_pattern[0] = ")";
|
|
fp |= (findtoken(tokens, _pattern) != NULL);
|
|
_pattern[0] = ",";
|
|
fp |= (findtoken(tokens, _pattern) != NULL);
|
|
|
|
if (!fp)
|
|
{
|
|
std::ostringstream ostr;
|
|
ostr << "Class '" << classname << "', unused private function: '" << FuncList.front() << "'";
|
|
ReportErr(ostr.str());
|
|
}
|
|
FuncList.pop_front();
|
|
}
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
// ClassCheck: Check that memset is not used on classes
|
|
//---------------------------------------------------------------------------
|
|
|
|
void CheckMemset()
|
|
{
|
|
// Locate all 'memset' tokens..
|
|
for (TOKEN *tok = tokens; tok; tok = tok->next)
|
|
{
|
|
if (strcmp(tok->str,"memset")!=0)
|
|
continue;
|
|
|
|
const char *type = NULL;
|
|
if (match(tok, "memset ( var , num , sizeof ( type ) )"))
|
|
type = getstr(tok, 8);
|
|
else if (match(tok, "memset ( & var , num , sizeof ( type ) )"))
|
|
type = getstr(tok, 9);
|
|
else if (match(tok, "memset ( var , num , sizeof ( struct type ) )"))
|
|
type = getstr(tok, 9);
|
|
else if (match(tok, "memset ( & var , num , sizeof ( struct type ) )"))
|
|
type = getstr(tok, 10);
|
|
|
|
// No type defined => The tokens didn't match
|
|
if (!(type && type[0]))
|
|
continue;
|
|
|
|
// It will be assumed that memset can be used upon 'this'.
|
|
// Todo: Check this too
|
|
if (strcmp(getstr(tok,2),"this") == 0)
|
|
continue;
|
|
|
|
// Warn if type is a class..
|
|
const char *pattern1[] = {"class","",NULL};
|
|
pattern1[1] = type;
|
|
if (findtoken(tokens,pattern1))
|
|
{
|
|
std::ostringstream ostr;
|
|
ostr << FileLine(tok) << ": Using 'memset' on class.";
|
|
ReportErr(ostr.str());
|
|
}
|
|
|
|
// Warn if type is a struct that contains any std::*
|
|
const char *pattern2[] = {"struct","","{",NULL};
|
|
pattern2[1] = type;
|
|
for (TOKEN *tstruct = findtoken(tokens, pattern2); tstruct; tstruct = tstruct->next)
|
|
{
|
|
if (tstruct->str[0] == '}')
|
|
break;
|
|
|
|
if (match(tstruct, "std :: type var ;"))
|
|
{
|
|
std::ostringstream ostr;
|
|
ostr << FileLine(tok) << ": Using 'memset' on struct that contains a 'std::" << getstr(tstruct,2) << "'";
|
|
ReportErr(ostr.str());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// ClassCheck: "void operator=("
|
|
//---------------------------------------------------------------------------
|
|
|
|
void CheckOperatorEq1()
|
|
{
|
|
const char *pattern[] = {"void", "operator", "=", "(", NULL};
|
|
if (TOKEN *tok = findtoken(tokens,pattern))
|
|
{
|
|
std::ostringstream ostr;
|
|
ostr << FileLine(tok) << ": 'operator=' should return something";
|
|
ReportErr(ostr.str());
|
|
}
|
|
}
|
|
|
|
|