Fix #1322 (Add cppcheckError and unusedFunction to --errorlist, give out internal errors in xml)

http://sourceforge.net/apps/trac/cppcheck/ticket/1322

lib/checkunusedfunctions.cpp

@@ -196,5 +196,7 @@ void CheckUnusedFunctions::check()
     }
 }
 
-
+void CheckUnusedFunctions::unusedFunctionError(const Token *tok)
-
+{
+    reportError(tok, Severity::style, "unusedFunction", "The function 'funcName' is never used");
+}

lib/checkunusedfunctions.h

@@ -22,13 +22,14 @@
 #define checkunusedfunctionsH
 //---------------------------------------------------------------------------
 
+#include "check.h"
 #include "tokenize.h"
 #include "errorlogger.h"
 
 /// @addtogroup Checks
 /// @{
 
-class CheckUnusedFunctions
+class CheckUnusedFunctions: public Check
 {
 public:
     CheckUnusedFunctions(ErrorLogger *errorLogger = 0);
@@ -50,6 +51,35 @@ public:
     void check();
 
 private:
+
+    void getErrorMessages()
+    {
+        unusedFunctionError(0);
+    }
+
+    /**
+     * Dummy implementation, just to provide error for --errorlist
+     */
+    void unusedFunctionError(const Token *tok);
+
+    /**
+     * Dummy implementation, just to provide error for --errorlist
+     */
+    void runSimplifiedChecks(const Tokenizer */*tokenizer*/, const Settings */*settings*/, ErrorLogger */*errorLogger*/)
+    {
+
+    }
+
+    std::string name() const
+    {
+        return "Unused functions";
+    }
+
+    std::string classInfo() const
+    {
+        return "Check for functions that are never called\n";
+    }
+
     ErrorLogger *_errorLogger;
 
 

lib/cppcheck.cpp

@@ -333,8 +333,7 @@ void CppCheck::parseFromArgs(int argc, const char* const argv[])
                 doc << "===" << (*it)->name() << "===\n"
                 << (*it)->classInfo() << "\n\n";
             }
-            doc << "===" << "Unused functions" << "===\n"
+
-            << "Check for functions that are never called\n";
             std::string doc2(doc.str());
             while (doc2.find("\n\n\n") != std::string::npos)
                 doc2.erase(doc2.find("\n\n\n"), 1);

lib/tokenize.cpp

@@ -6304,6 +6304,8 @@ void Tokenizer::cppcheckError(const Token *tok) const
 
     if (_errorLogger)
         _errorLogger->reportErr(errmsg);
+    else
+        Check::reportError(errmsg);
 }
 
 
@@ -6783,6 +6785,7 @@ void Tokenizer::simplifyConst()
 void Tokenizer::getErrorMessages()
 {
     syntaxError(0, ' ');
+    cppcheckError(0);
 }
 
 /** find pattern */