Use MAXTIME in templatesimplifier

lib/templatesimplifier.cpp

@@ -1222,6 +1222,7 @@ bool TemplateSimplifier::simplifyTemplateInstantiations(
     ErrorLogger* errorlogger,
     const Settings *_settings,
     const Token *tok,
+    const std::time_t maxtime,
     std::list<Token *> &templateInstantiations,
     std::set<std::string> &expandedtemplates)
 {
@@ -1274,6 +1275,12 @@ bool TemplateSimplifier::simplifyTemplateInstantiations(
         Token * const tok2 = *iter2;
         if (errorlogger && !tokenlist.getFiles().empty())
             errorlogger->reportProgress(tokenlist.getFiles()[0], "TemplateSimplifier::simplifyTemplateInstantiations()", tok2->progressValue());
+#ifdef MAXTIME
+        if (std::time(0) > maxtime)
+            return false;
+#else
+        (void)maxtime;
+#endif
         assert(tokenlist.validateToken(tok2)); // that assertion fails on examples from #6021
         if (tok2->str() != name)
             continue;
@@ -1404,6 +1411,7 @@ void TemplateSimplifier::simplifyTemplates(
     TokenList& tokenlist,
     ErrorLogger* errorlogger,
     const Settings *_settings,
+    const std::time_t maxtime,
     bool &_codeWithTemplates
 )
 {
@@ -1450,6 +1458,7 @@ void TemplateSimplifier::simplifyTemplates(
                                 errorlogger,
                                 _settings,
                                 *iter1,
+                                maxtime,
                                 templateInstantiations,
                                 expandedtemplates);
             if (instantiated)

lib/templatesimplifier.h

@@ -25,6 +25,7 @@
 #include <set>
 #include <list>
 #include <string>
+#include <ctime>
 #include <vector>
 #include "config.h"
 
@@ -137,6 +138,7 @@ public:
      * @param errorlogger error logger
      * @param _settings settings
      * @param tok token where the template declaration begins
+     * @param maxtime time when the simplification will stop
      * @param templateInstantiations a list of template usages (not necessarily just for this template)
      * @param expandedtemplates all templates that has been expanded so far. The full names are stored.
      * @return true if the template was instantiated
@@ -146,6 +148,7 @@ public:
         ErrorLogger* errorlogger,
         const Settings *_settings,
         const Token *tok,
+        const std::time_t maxtime,
         std::list<Token *> &templateInstantiations,
         std::set<std::string> &expandedtemplates);
 
@@ -154,12 +157,14 @@ public:
      * @param tokenlist token list
      * @param errorlogger error logger
      * @param _settings settings
+     * @param maxtime time when the simplification should be stopped
      * @param _codeWithTemplates output parameter that is set if code contains templates
      */
     static void simplifyTemplates(
         TokenList& tokenlist,
         ErrorLogger* errorlogger,
         const Settings *_settings,
+        const std::time_t maxtime,
         bool &_codeWithTemplates);
 
     /**

lib/tokenize.cpp

@@ -2357,6 +2357,11 @@ void Tokenizer::simplifyTemplates()
         list,
         _errorLogger,
         _settings,
+#ifdef MAXTIME
+        maxtime,
+#else
+        0, // ignored
+#endif
         _codeWithTemplates);
 }
 //---------------------------------------------------------------------------