X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/203ba76a12c701e24e1cd8dadb31748976af98a2..84ce7b7dba590a3e6042190b79a3b1c0908b0a4c:/utils/ifacecheck/src/ifacecheck.cpp

diff --git a/utils/ifacecheck/src/ifacecheck.cpp b/utils/ifacecheck/src/ifacecheck.cpp
index c119238532..75831e5994 100644
--- a/utils/ifacecheck/src/ifacecheck.cpp
+++ b/utils/ifacecheck/src/ifacecheck.cpp
@@ -3,7 +3,6 @@
 // Purpose:     Interface headers <=> real headers coherence checker
 // Author:      Francesco Montorsi
 // Created:     2008/03/17
-// RCS-ID:      $Id$
 // Copyright:   (c) 2008 Francesco Montorsi
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
@@ -18,6 +17,7 @@
 // for all others, include the necessary headers
 #ifndef WX_PRECOMP
     #include "wx/app.h"
+    #include "wx/crt.h"
 #endif
 
 #include "wx/cmdline.h"
@@ -35,18 +35,23 @@ bool g_verbose = false;
 // IfaceCheckApp
 // ----------------------------------------------------------------------------
 
-#define API_DUMP_FILE           "dump.api.txt"
-#define INTERFACE_DUMP_FILE     "dump.interface.txt"
+#define API_DUMP_FILE               "dump.api.txt"
+#define INTERFACE_DUMP_FILE         "dump.interface.txt"
 
-#define PROCESS_ONLY_SWITCH     "p"
-#define MODIFY_SWITCH           "m"
-#define DUMP_SWITCH             "d"
-#define HELP_SWITCH             "h"
-#define VERBOSE_SWITCH          "v"
+#define PROCESS_ONLY_OPTION         "p"
+#define USE_PREPROCESSOR_OPTION     "u"
+
+#define MODIFY_SWITCH               "m"
+#define DUMP_SWITCH                 "d"
+#define HELP_SWITCH                 "h"
+#define VERBOSE_SWITCH              "v"
 
 static const wxCmdLineEntryDesc g_cmdLineDesc[] =
 {
-    { wxCMD_LINE_OPTION, PROCESS_ONLY_SWITCH, "process-only",
+    { wxCMD_LINE_OPTION, USE_PREPROCESSOR_OPTION, "use-preproc",
+        "uses the preprocessor output to increase the checker accuracy",
+        wxCMD_LINE_VAL_STRING, wxCMD_LINE_NEEDS_SEPARATOR },
+    { wxCMD_LINE_OPTION, PROCESS_ONLY_OPTION, "process-only",
         "processes only header files matching the given wildcard",
         wxCMD_LINE_VAL_STRING, wxCMD_LINE_NEEDS_SEPARATOR },
     { wxCMD_LINE_SWITCH, MODIFY_SWITCH, "modify",
@@ -64,6 +69,19 @@ static const wxCmdLineEntryDesc g_cmdLineDesc[] =
     wxCMD_LINE_DESC_END
 };
 
+class IfaceCheckLog : public wxLog
+{
+public:
+    IfaceCheckLog() {}
+
+    virtual void DoLogText(const wxString& msg)
+    {
+        // send all messages to stdout (normal behaviour is to sent them to stderr)
+        wxPuts(msg);
+        fflush(stdout);
+    }
+};
+
 class IfaceCheckApp : public wxAppConsole
 {
 public:
@@ -71,11 +89,13 @@ public:
     virtual bool OnInit() { m_modify=false; return true; }
     virtual int OnRun();
 
+    bool ParsePreprocessorOutput(const wxString& filename);
+
     bool Compare();
-    int CompareClasses(const wxClass* iface, const wxClassPtrArray& api);
-    void FixMethod(const wxString& header, const wxMethod* iface, const wxMethod* api);
+    int CompareClasses(const wxClass* iface, const wxClass* api);
+    bool FixMethod(const wxString& header, const wxMethod* iface, const wxMethod* api);
+    bool StringContainsMethodName(const wxString& str, const wxMethod* m);
 
-    void ShowProgress();
     void PrintStatistics(long secs);
 
     bool IsToProcess(const wxString& headername) const
@@ -86,13 +106,13 @@ public:
     }
 
 protected:
-    wxXmlGccInterface m_api;                  // "real" headers API
-    wxXmlDoxygenInterface m_interface;        // doxygen-commented headers API
+    wxXmlGccInterface m_gccInterface;                  // "real" headers API
+    wxXmlDoxygenInterface m_doxyInterface;             // doxygen-commented headers API
 
     // was the MODIFY_SWITCH passed?
     bool m_modify;
 
-    // if non-empty, then PROCESS_ONLY_SWITCH was passed and this is the
+    // if non-empty, then PROCESS_ONLY_OPTION was passed and this is the
     // wildcard expression to match
     wxString m_strToMatch;
 };
@@ -103,37 +123,55 @@ int IfaceCheckApp::OnRun()
 {
     long startTime = wxGetLocalTime();      // for timing purpose
 
-    // parse the command line...
     wxCmdLineParser parser(g_cmdLineDesc, argc, argv);
+    parser.SetLogo(
+        wxString::Format("wxWidgets Interface checker utility (built %s against %s)",
+                         __DATE__, wxVERSION_STRING));
+
+    // make the output more readable:
+    wxLog::SetActiveTarget(new IfaceCheckLog);
+    wxLog::DisableTimestamp();
+
+    // parse the command line...
     bool ok = true;
+    wxString preprocFile;
     switch (parser.Parse())
     {
-        case -1:
-            // HELP_SWITCH was passed
-            return 0;
-
         case 0:
             if (parser.Found(VERBOSE_SWITCH))
                 g_verbose = true;
 
-            if (!m_api.Parse(parser.GetParam(0)) ||
-                !m_interface.Parse(parser.GetParam(1)))
+            // IMPORTANT: parsing #define values must be done _before_ actually
+            //            parsing the GCC/doxygen XML files
+            if (parser.Found(USE_PREPROCESSOR_OPTION, &preprocFile))
+            {
+                if (!ParsePreprocessorOutput(preprocFile))
+                    return 1;
+            }
+
+            // in any case set basic std preprocessor #defines:
+            m_doxyInterface.AddPreprocessorValue("NULL", "0");
+
+            // parse the two XML files which contain the real and the doxygen interfaces
+            // for wxWidgets API:
+            if (!m_gccInterface.Parse(parser.GetParam(0)) ||
+                !m_doxyInterface.Parse(parser.GetParam(1)))
                 return 1;
 
             if (parser.Found(DUMP_SWITCH))
             {
-                LogMessage("Dumping real API to '%s'...", API_DUMP_FILE);
-                m_api.Dump(API_DUMP_FILE);
+                wxLogMessage("Dumping real API to '%s'...", API_DUMP_FILE);
+                m_gccInterface.Dump(API_DUMP_FILE);
 
-                LogMessage("Dumping interface API to '%s'...", INTERFACE_DUMP_FILE);
-                m_interface.Dump(INTERFACE_DUMP_FILE);
+                wxLogMessage("Dumping interface API to '%s'...", INTERFACE_DUMP_FILE);
+                m_doxyInterface.Dump(INTERFACE_DUMP_FILE);
             }
             else
             {
                 if (parser.Found(MODIFY_SWITCH))
                     m_modify = true;
 
-                if (parser.Found(PROCESS_ONLY_SWITCH, &m_strToMatch))
+                if (parser.Found(PROCESS_ONLY_OPTION, &m_strToMatch))
                 {
                     size_t len = m_strToMatch.Len();
                     if (m_strToMatch.StartsWith("\"") &&
@@ -142,90 +180,114 @@ int IfaceCheckApp::OnRun()
                         m_strToMatch = m_strToMatch.Mid(1, len-2);
                 }
 
+
                 ok = Compare();
             }
 
             PrintStatistics(wxGetLocalTime() - startTime);
             return ok ? 0 : 1;
-    }
 
-    return 1;
-}
-
-void IfaceCheckApp::ShowProgress()
-{
-    wxPrint(".");
-    //fflush(stdout);
+        default:
+            wxPrintf("\nThis utility checks that the interface XML files created by Doxygen are in\n");
+            wxPrintf("synch with the real headers (whose contents are extracted by the gcc XML file).\n\n");
+            wxPrintf("The 'gccXML' parameter should be the wxapi.xml file created by the 'rungccxml.sh'\n");
+            wxPrintf("script which resides in 'utils/ifacecheck'.\n");
+            wxPrintf("The 'doxygenXML' parameter should be the index.xml file created by Doxygen\n");
+            wxPrintf("for the wxWidgets 'interface' folder.\n\n");
+            wxPrintf("Since the gcc XML file does not contain info about #defines, if you use\n");
+            wxPrintf("the -%s option, you'll get a smaller number of false warnings.\n",
+                     USE_PREPROCESSOR_OPTION);
+
+            // HELP_SWITCH was passed or a syntax error occurred
+            return 0;
+    }
 }
 
 bool IfaceCheckApp::Compare()
 {
-    const wxClassArray& interface = m_interface.GetClasses();
+    const wxClassArray& interfaces = m_doxyInterface.GetClasses();
     const wxClass* c;
-    wxClassPtrArray api;
     int mcount = 0, ccount = 0;
 
-    LogMessage("Comparing the interface API to the real API (%d classes to compare)...",
-               interface.GetCount());
+    wxLogMessage("Comparing the interface API to the real API (%d classes to compare)...",
+                 interfaces.GetCount());
 
     if (!m_strToMatch.IsEmpty())
-        LogMessage("Processing only header files matching '%s' expression.", m_strToMatch);
+    {
+        wxLogMessage("Processing only header files matching '%s' expression.", m_strToMatch);
+    }
 
-    for (unsigned int i=0; i<interface.GetCount(); i++)
+    for (unsigned int i=0; i<interfaces.GetCount(); i++)
     {
+        // only compare the methods which are available for the port
+        // for which the gcc XML was produced
+        if (interfaces[i].GetAvailability() != wxPORT_UNKNOWN &&
+            (interfaces[i].GetAvailability() & m_gccInterface.GetInterfacePort()) == 0) {
+
+            if (g_verbose)
+            {
+                wxLogMessage("skipping class '%s' since it's not available for the %s port.",
+                           interfaces[i].GetName(), m_gccInterface.GetInterfacePortName());
+            }
+
+            continue;       // skip this method
+        }
+
         // shorten the name of the header so the log file is more readable
         // and also for calling IsToProcess() against it
-        wxString header = wxFileName(interface[i].GetHeader()).GetFullName();
+        wxString header = wxFileName(interfaces[i].GetHeader()).GetFullName();
 
         if (!IsToProcess(header))
             continue;       // skip this one
 
-        wxString cname = interface[i].GetName();
-
-        api.Empty();
+        wxString cname = interfaces[i].GetName();
 
-        // search in the real headers for i-th interface class
-        // for both class cname and cnameBase as in wxWidgets world, most often
+        // search in the real headers for i-th interface class; we search for
+        // both class cname and cnameBase since in wxWidgets world tipically
         // class cname is platform-specific while the real public interface of
         // that class is part of the cnameBase class.
-        c = m_api.FindClass(cname);
-        if (c) api.Add(c);
-        c = m_api.FindClass(cname + "Base");
-        if (c) api.Add(c);
+        /*c = m_gccInterface.FindClass(cname + "Base");
+        if (c) api.Add(c);*/
 
-        if (api.GetCount()>0) {
+        c = m_gccInterface.FindClass(cname);
+        if (!c)
+        {
+            // sometimes the platform-specific class is named "wxGeneric" + cname
+            // or similar:
+            c = m_gccInterface.FindClass("wxGeneric" + cname.Mid(2));
+            if (!c)
+            {
+                c = m_gccInterface.FindClass("wxGtk" + cname.Mid(2));
+            }
+        }
+
+        if (c) {
 
-            // there is a class with exactly the same name!
-            mcount += CompareClasses(&interface[i], api);
+            // there is a class with the same (logic) name!
+            mcount += CompareClasses(&interfaces[i], c);
 
         } else {
 
-            LogMessage("%s: couldn't find the real interface for the '%s' class",
+            wxLogMessage("%s: couldn't find the real interface for the '%s' class",
                        header, cname);
             ccount++;
         }
     }
 
-    LogMessage("%d methods (%.1f%%) of the interface headers do not exist in the real headers",
-               mcount, (float)(100.0 * mcount/m_interface.GetMethodCount()));
-    LogMessage("%d classes (%.1f%%) of the interface headers do not exist in the real headers",
-               ccount, (float)(100.0 * ccount/m_interface.GetClassesCount()));
+    wxLogMessage("%d on a total of %d methods (%.1f%%) of the interface headers do not exist in the real headers",
+               mcount, m_doxyInterface.GetMethodCount(), (float)(100.0 * mcount/m_doxyInterface.GetMethodCount()));
+    wxLogMessage("%d on a total of %d classes (%.1f%%) of the interface headers do not exist in the real headers",
+               ccount, m_doxyInterface.GetClassesCount(), (float)(100.0 * ccount/m_doxyInterface.GetClassesCount()));
 
     return true;
 }
 
-int IfaceCheckApp::CompareClasses(const wxClass* iface, const wxClassPtrArray& api)
+int IfaceCheckApp::CompareClasses(const wxClass* iface, const wxClass* api)
 {
-    wxString searchedclasses;
     const wxMethod *real;
     int count = 0;
 
-    wxASSERT(iface && api.GetCount()>0);
-
-    // build a string with the names of the API classes compared to iface
-    for (unsigned int j=0; j<api.GetCount(); j++)
-        searchedclasses += "/" + api[j]->GetName();
-    searchedclasses.Remove(0, 1);
+    wxASSERT(iface && api);
 
     // shorten the name of the header so the log file is more readable
     wxString header = wxFileName(iface->GetHeader()).GetFullName();
@@ -233,178 +295,394 @@ int IfaceCheckApp::CompareClasses(const wxClass* iface, const wxClassPtrArray& a
     for (unsigned int i=0; i<iface->GetMethodCount(); i++)
     {
         const wxMethod& m = iface->GetMethod(i);
-        int matches = 0;
+
+        // only compare the methods which are available for the port
+        // for which the gcc XML was produced
+        if (m.GetAvailability() != wxPORT_UNKNOWN &&
+            (m.GetAvailability() & m_gccInterface.GetInterfacePort()) == 0) {
+
+            if (g_verbose)
+            {
+                wxLogMessage("skipping method '%s' since it's not available for the %s port.",
+                           m.GetAsString(), m_gccInterface.GetInterfacePortName());
+            }
+
+            continue;       // skip this method
+        }
 
         // search in the methods of the api classes provided
-        for (unsigned int j=0; j<api.GetCount(); j++)
+        real = api->RecursiveUpwardFindMethod(m, &m_gccInterface);
+
+        // avoid some false positives:
+        if (!real && m.ActsAsDefaultCtor())
         {
-            real = api[j]->FindMethod(m);
-            if (real)
-                matches++;                // there is a real matching prototype! It's ok!
+            // build an artificial default ctor for this class:
+            wxMethod temp(m);
+            temp.GetArgumentTypes().Clear();
+
+            // repeat search:
+            real = api->RecursiveUpwardFindMethod(temp, &m_gccInterface);
         }
 
-        if (matches == 0)
+        // no matches?
+        if (!real)
         {
-            wxMethodPtrArray overloads;
-
-            // try searching for a method with the same name but with
-            // different return type / arguments / qualifiers
-            for (unsigned int j=0; j<api.GetCount(); j++)
-            {
-                wxMethodPtrArray results = api[j]->FindMethodNamed(m.GetName());
+            bool proceed = true;
+            wxMethodPtrArray overloads =
+                api->RecursiveUpwardFindMethodsNamed(m.GetName(), &m_gccInterface);
+
+            // avoid false positives:
+            for (unsigned int k=0; k<overloads.GetCount(); k++)
+                if (overloads[k]->MatchesExceptForAttributes(m) &&
+                    m.IsDeprecated() && !overloads[k]->IsDeprecated())
+                {
+                    // maybe the iface method is marked as deprecated but the
+                    // real method is not?
+                    wxMethod tmp(*overloads[k]);
+                    tmp.SetDeprecated(true);
 
-                // append "results" array to "overloads"
-                WX_APPEND_ARRAY(overloads, results);
-            }
+                    if (tmp == m)
+                    {
+                        // in this case, we can disregard this warning... the real
+                        // method probably is included in WXWIN_COMPAT sections!
+                        proceed = false;    // skip this method
+                    }
+                }
 
-            if (overloads.GetCount()==0)
-            {
-                /*
-                    TODO: sometimes the interface headers re-document a method
-                          inherited from a base class even if the real header does
-                          not actually re-implement it.
-                          To avoid false positives, we'd need to search in the base classes
-                          of api[] classes and search for a matching method.
-                */
-                LogMessage("%s: real '%s' class has no method '%s'",
-                            header, searchedclasses, m.GetAsString());
-                // we've found no overloads
-            }
-            else
-            {
-                // first, output a warning
-                wxString warning = header;
-                if (overloads.GetCount()>1)
-                    warning += wxString::Format(": in the real headers there are %d overloads of '%s' for "
-                                                "'%s' all with different signatures:\n",
-                                                overloads.GetCount(), m.GetName(), searchedclasses);
-                else
-                    warning += wxString::Format(": in the real headers there is a method '%s' for '%s'"
-                                                " but has different signature:\n",
-                                                m.GetName(), searchedclasses);
+#define HACK_TO_AUTO_CORRECT_ONLY_METHOD_ATTRIBUTES        0
+#if HACK_TO_AUTO_CORRECT_ONLY_METHOD_ATTRIBUTES
+            for (unsigned int k=0; k<overloads.GetCount(); k++)
+                if (overloads[k]->MatchesExceptForAttributes(m))
+                {
+                    // fix default values of results[k]:
+                    wxMethod tmp(*overloads[k]);
+                    tmp.SetArgumentTypes(m.GetArgumentTypes());
 
-                warning += "\tdoxy header: " + m.GetAsString();
-                for (unsigned int j=0; j<overloads.GetCount(); j++)
-                    warning += "\n\treal header: " + overloads[j]->GetAsString();
+                    // modify interface header
+                    if (FixMethod(iface->GetHeader(), &m, &tmp))
+                    {
+                        wxLogMessage("Adjusted attributes of '%s' method", m.GetAsString());
+                    }
 
-                wxPrint(warning + "\n");
-                count++;
+                    proceed = false;
+                    break;
+                }
+#endif // HACK_TO_AUTO_CORRECT_ONLY_METHOD_ATTRIBUTES
 
-                if (overloads.GetCount()>1)
+            if (proceed)
+            {
+                if (overloads.GetCount()==0)
                 {
-                    // TODO: decide which of these overloads is the most "similar" to m
-                    //       and eventually modify it
-                    if (m_modify)
-                        wxPrint("\tmanual fix is required\n");
+                    wxLogMessage("%s: real '%s' class and their parents have no method '%s'",
+                                header, api->GetName(), m.GetAsString());
+                    // we've found no overloads
                 }
                 else
                 {
-                    wxASSERT(overloads.GetCount() == 1);
+                    // first, output a warning
+                    wxString warning = header;
+                    if (overloads.GetCount()>1)
+                        warning += wxString::Format(": in the real headers there are %d overloads of '%s' for "
+                                                    "'%s' all with different signatures:\n",
+                                                    overloads.GetCount(), m.GetName(), api->GetName());
+                    else {
+                        warning += wxString::Format(": in the real headers there is a method '%s' for '%s'"
+                                                    " but has different signature:\n",
+                                                    m.GetName(), api->GetName());
+                    }
+
+                    // get a list of the prototypes with _all_ possible attributes:
+                    warning += "\tdoxy header: " + m.GetAsString(true, true, true, true);
+                    for (unsigned int j=0; j<overloads.GetCount(); j++)
+                        warning += "\n\treal header: " + overloads[j]->GetAsString(true, true, true, true);
 
-                    if (m_modify)
+                    wxLogWarning("%s", warning);
+                    count++;
+
+                    if (overloads.GetCount()>1)
                     {
-                        wxPrint("\tfixing it...\n");
+                        // TODO: decide which of these overloads is the most "similar" to m
+                        //       and eventually modify it
+                        if (m_modify)
+                        {
+                            wxLogWarning("\tmanual fix is required");
+                        }
+                    }
+                    else
+                    {
+                        wxASSERT(overloads.GetCount() == 1);
+
+                        if (m_modify || m.IsCtor())
+                        {
+                            wxLogWarning("\tfixing it...");
 
-                        // try to modify it!
-                        FixMethod(iface->GetHeader(), &m, overloads[0]);
+                            // try to modify it!
+                            FixMethod(iface->GetHeader(), &m, overloads[0]);
+                        }
                     }
                 }
-            }
 
-            count++;
+                count++;
+            }       // if (proceed)
         }
     }
 
     return count;
 }
 
-void IfaceCheckApp::FixMethod(const wxString& header, const wxMethod* iface, const wxMethod* api)
+bool IfaceCheckApp::StringContainsMethodName(const wxString& str, const wxMethod* m)
 {
+    return str.Contains(m->GetName()) ||
+           (m->IsOperator() && str.Contains("operator"));
+}
+
+bool IfaceCheckApp::FixMethod(const wxString& header, const wxMethod* iface, const wxMethod* api)
+{
+    unsigned int i,j;
     wxASSERT(iface && api);
 
     wxTextFile file;
     if (!file.Open(header)) {
-        LogError("can't open the '%s' header file.", header);
-        return;
+        wxLogError("\tcan't open the '%s' header file.", header);
+        return false;
     }
 
-    // GetLocation() returns the line where the last part of the prototype is placed:
+    // GetLocation() returns the line where the last part of the prototype is placed;
+    // i.e. the line containing the semicolon at the end of the declaration.
     int end = iface->GetLocation()-1;
     if (end <= 0 || end >= (int)file.GetLineCount()) {
-        LogWarning("invalid location info for method '%s': %d.",
+        wxLogWarning("\tinvalid location info for method '%s': %d.",
                    iface->GetAsString(), iface->GetLocation());
-        return;
+        return false;
     }
 
-    if (!file.GetLine(end).Contains(iface->GetName())) {
-        LogWarning("invalid location info for method '%s': %d.",
+    if (!file.GetLine(end).Contains(";")) {
+        wxLogWarning("\tinvalid location info for method '%s': %d.",
                    iface->GetAsString(), iface->GetLocation());
-        return;
+        return false;
     }
 
-    // find the start point of this prototype declaration:
-    int start = end-1;
-    while (start > 0 &&
-           !file.GetLine(start).Contains(";") &&
-           !file.GetLine(start).Contains("*/"))
-        start--;
-
-    if (start <= 0)
+    // is this a one-line prototype declaration?
+    bool founddecl = false;
+    int start;
+    if (StringContainsMethodName(file.GetLine(end), iface))
     {
-        LogError("can't find the beginning of the declaration of '%s' method in '%s' header",
-                    iface->GetAsString(), header);
-        return;
+        // yes, this prototype is all on this line:
+        start = end;
+        founddecl = true;
+    }
+    else
+    {
+        start = end;    // will be decremented inside the while{} loop below
+
+        // find the start point of this prototype declaration; i.e. the line
+        // containing the function name, which is also the line following
+        // the marker '*/' for the closure of the doxygen comment
+        do
+        {
+            start--;        // go up one line
+
+            if (StringContainsMethodName(file.GetLine(start), iface))
+                founddecl = true;
+        }
+        while (start > 0 && !founddecl &&
+               !file.GetLine(start).Contains(";") &&
+               !file.GetLine(start).Contains("*/"));
     }
 
-    // start-th line contains either the declaration of another prototype
-    // or the closing tag */ of a doxygen comment; start one line below
-    start++;
+    if (start <= 0 || !founddecl)
+    {
+        wxLogError("\tcan't find the beginning of the declaration of '%s' method in '%s' header looking backwards from line %d; I arrived at %d and gave up",
+                 iface->GetAsString(), header, end+1 /* zero-based => 1-based */, start);
+        return false;
+    }
 
     // remove the old prototype
-    for (int i=start; i<=end; i++)
+    for (int k=start; k<=end; k++)
         file.RemoveLine(start);     // remove (end-start)-nth times the start-th line
 
 #define INDENTATION_STR  wxString("    ")
 
-    // if possible, add also the @deprecated tag in the doxygen comment
-    if (file.GetLine(start-1).Contains("*/") && api->IsDeprecated())
+    // if possible, add also the @deprecated tag in the doxygen comment if it's missing
+    int deprecationOffset = 0;
+    if (file.GetLine(start-1).Contains("*/") &&
+        (api->IsDeprecated() && !iface->IsDeprecated()))
     {
         file.RemoveLine(start-1);
         file.InsertLine(INDENTATION_STR + INDENTATION_STR +
                         "@deprecated @todo provide deprecation description", start-1);
         file.InsertLine(INDENTATION_STR + "*/", start++);
+
+        // we have added a new line in the final balance
+        deprecationOffset=1;
     }
 
     wxMethod tmp(*api);
 
-    // discard API argument names and replace them with those parsed from doxygen XML:
+    // discard gcc XML argument names and replace them with those parsed from doxygen XML;
+    // in this way we should avoid introducing doxygen warnings about cases where the argument
+    // 'xx' of the prototype is called 'yy' in the function's docs.
     const wxArgumentTypeArray& doxygenargs = iface->GetArgumentTypes();
     const wxArgumentTypeArray& realargs = api->GetArgumentTypes();
     if (realargs.GetCount() == doxygenargs.GetCount())
     {
-        for (unsigned int j=0; j<doxygenargs.GetCount(); j++)
+        for (j=0; j<doxygenargs.GetCount(); j++)
             if (doxygenargs[j]==realargs[j])
+            {
                 realargs[j].SetArgumentName(doxygenargs[j].GetArgumentName());
 
+                if (realargs[j].GetDefaultValue().IsNumber() &&
+                    doxygenargs[j].GetDefaultValue().StartsWith("wx"))
+                    realargs[j].SetDefaultValue(doxygenargs[j].GetDefaultValue());
+            }
+
         tmp.SetArgumentTypes(realargs);
     }
 
-    // insert the new one
-    file.InsertLine(INDENTATION_STR + tmp.GetAsString() + ";", start);
+#define WRAP_COLUMN     80
+
+    wxArrayString toinsert;
+    toinsert.Add(INDENTATION_STR + tmp.GetAsString() + ";");
+
+    int nStartColumn = toinsert[0].Find('(');
+    wxASSERT(nStartColumn != wxNOT_FOUND);
+
+    // wrap lines too long at comma boundaries
+    for (i=0; i<toinsert.GetCount(); i++)
+    {
+        size_t len = toinsert[i].Len();
+        if (len > WRAP_COLUMN)
+        {
+            wxASSERT(i == toinsert.GetCount()-1);
+
+            // break this line
+            wxString tmpleft = toinsert[i].Left(WRAP_COLUMN);
+            int comma = tmpleft.Find(',', true /* from end */);
+            if (comma == wxNOT_FOUND)
+                break;     // break out of the for cycle...
+
+            toinsert.Add(wxString(' ', nStartColumn+1) +
+                         toinsert[i].Right(len-comma-2));   // exclude the comma and the space after it
+            toinsert[i] = tmpleft.Left(comma+1);            // include the comma
+        }
+    }
+
+    // insert the new lines
+    for (i=0; i<toinsert.GetCount(); i++)
+        file.InsertLine(toinsert[i], start+i);
 
     // now save the modification
     if (!file.Write()) {
-        LogError("can't save the '%s' header file.", header);
-        return;
+        wxLogError("\tcan't save the '%s' header file.", header);
+        return false;
+    }
+
+    // how many lines did we add/remove in total?
+    int nOffset = toinsert.GetCount() + deprecationOffset - (end-start+1);
+    if (nOffset == 0)
+        return false;
+
+    if (g_verbose)
+    {
+        wxLogMessage("\tthe final row offset for following methods is %d lines.", nOffset);
+    }
+
+    // update the other method's locations for those methods which belong to the modified header
+    // and are placed _below_ the modified method
+    wxClassPtrArray cToUpdate = m_doxyInterface.FindClassesDefinedIn(header);
+    for (i=0; i < cToUpdate.GetCount(); i++)
+    {
+        for (j=0; j < cToUpdate[i]->GetMethodCount(); j++)
+        {
+            wxMethod& m = cToUpdate[i]->GetMethod(j);
+            if (m.GetLocation() > iface->GetLocation())
+            {
+                // update the location of this method
+                m.SetLocation(m.GetLocation()+nOffset);
+            }
+        }
+    }
+
+    return true;
+}
+
+bool IfaceCheckApp::ParsePreprocessorOutput(const wxString& filename)
+{
+    wxTextFile tf;
+    if (!tf.Open(filename)) {
+        wxLogError("can't open the '%s' preprocessor output file.", filename);
+        return false;
     }
+
+    size_t useful = 0;
+    for (unsigned int i=0; i < tf.GetLineCount(); i++)
+    {
+        const wxString& line = tf.GetLine(i);
+        wxString defnameval = line.Mid(8);     // what follows the "#define " string
+
+        // the format of this line should be:
+        //    #define DEFNAME DEFVALUE
+        if (!line.StartsWith("#define ")) {
+            wxLogError("unexpected content in '%s' at line %d.", filename, i+1);
+            return false;
+        }
+
+        if (defnameval.Contains(" "))
+        {
+            // get DEFNAME
+            wxString defname = defnameval.BeforeFirst(' ');
+            if (defname.Contains("("))
+                continue;       // this is a macro, skip it!
+
+            // get DEFVAL
+            wxString defval = defnameval.AfterFirst(' ').Strip(wxString::both);
+            if (defval.StartsWith("(") && defval.EndsWith(")"))
+                defval = defval.Mid(1, defval.Len()-2);
+
+            // store this pair in the doxygen interface, where it can be useful
+            m_doxyInterface.AddPreprocessorValue(defname, defval);
+            useful++;
+        }
+        else
+        {
+            // it looks like the format of this line is:
+            //    #define DEFNAME
+            // we are not interested to symbols #defined to nothing,
+            // so we just ignore this line.
+        }
+    }
+
+    wxLogMessage("Parsed %d preprocessor #defines from '%s' which will be used later...",
+               useful, filename);
+
+    return true;
 }
 
 void IfaceCheckApp::PrintStatistics(long secs)
 {
-    LogMessage("wx real headers contains declaration of %d classes (%d methods)",
-               m_api.GetClassesCount(), m_api.GetMethodCount());
-    LogMessage("wx interface headers contains declaration of %d classes (%d methods)",
-               m_interface.GetClassesCount(), m_interface.GetMethodCount());
-    LogMessage("total processing took %d seconds.", secs);
+    // these stats, for what regards the gcc XML, are all referred to the wxWidgets
+    // classes only!
+
+    wxLogMessage("wx real headers contains declaration of %d classes (%d methods)",
+               m_gccInterface.GetClassesCount(), m_gccInterface.GetMethodCount());
+    wxLogMessage("wx interface headers contains declaration of %d classes (%d methods)",
+               m_doxyInterface.GetClassesCount(), m_doxyInterface.GetMethodCount());
+
+    // build a list of the undocumented wx classes
+    wxString list;
+    int undoc = 0;
+    const wxClassArray& arr = m_gccInterface.GetClasses();
+    for (unsigned int i=0; i<arr.GetCount(); i++) {
+        if (m_doxyInterface.FindClass(arr[i].GetName()) == NULL) {
+            list += arr[i].GetName() + ", ";
+            undoc++;
+        }
+    }
+
+    list.RemoveLast();
+    list.RemoveLast();
+
+    wxLogMessage("the list of the %d undocumented wx classes is: %s", undoc, list);
+    wxLogMessage("total processing took %d seconds.", secs);
 }