C++: Support __thread and thread_local

Task-number: QTCREATORBUG-7679
Change-Id: I794f52b2bcfb6c78ceef86ec53b6ed32b3d53d9f
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

src/libs/3rdparty/cplusplus/Keywords.cpp

@@ -803,6 +803,17 @@ static inline int classify8(const char *s, LanguageFeatures features)
             }
           }
         }
+        else if (s[3] == 'h') {
+          if (s[4] == 'r') {
+            if (s[5] == 'e') {
+              if (s[6] == 'a') {
+                if (s[7] == 'd') {
+                  return T___THREAD;
+                }
+              }
+            }
+          }
+        }
       }
     }
   }
@@ -1443,6 +1454,31 @@ static inline int classify12(const char *s, LanguageFeatures features)
       }
     }
   }
+  else if (features.cxx11Enabled && s[0] == 't') {
+    if (s[1] == 'h') {
+      if (s[2] == 'r') {
+        if (s[3] == 'e') {
+          if (s[4] == 'a') {
+            if (s[5] == 'd') {
+              if (s[6] == '_') {
+                if (s[7] == 'l') {
+                  if (s[8] == 'o') {
+                    if (s[9] == 'c') {
+                      if (s[10] == 'a') {
+                        if (s[11] == 'l') {
+                          return T_THREAD_LOCAL;
+                        }
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
   return T_IDENTIFIER;
 }
 

src/libs/3rdparty/cplusplus/Parser.cpp

@@ -3725,7 +3725,10 @@ bool Parser::lookAtStorageClassSpecifier() const
     case T_EXTERN:
     case T_MUTABLE:
     case T_TYPEDEF:
+    case T___THREAD:
         return true;
+    case T_THREAD_LOCAL:
+        return _languageFeatures.cxx11Enabled;
     case T_CONSTEXPR:
         if (_languageFeatures.cxx11Enabled)
             return true;

src/libs/3rdparty/cplusplus/Token.cpp

@@ -57,13 +57,13 @@ const char *token_names[] = {
     ("nullptr"), ("operator"), ("private"),
     ("protected"), ("public"), ("register"), ("reinterpret_cast"),
     ("return"), ("short"), ("signed"), ("sizeof"), ("static"),("static_assert"),
-    ("static_cast"), ("struct"), ("switch"), ("template"), ("this"),
+    ("static_cast"), ("struct"), ("switch"), ("template"), ("this"), ("thread_local"),
     ("throw"), ("true"), ("try"), ("typedef"), ("typeid"), ("typename"),
     ("union"), ("unsigned"), ("using"), ("virtual"), ("void"),
     ("volatile"), ("wchar_t"), ("while"),
 
     // gnu
-    ("__attribute__"), ("__typeof__"),
+    ("__attribute__"), ("__thread"), ("__typeof__"),
 
     // objc @keywords
     ("@catch"), ("@class"), ("@compatibility_alias"), ("@defs"), ("@dynamic"),

src/libs/3rdparty/cplusplus/Token.h

@@ -173,6 +173,7 @@ enum Kind {
     T_SWITCH,
     T_TEMPLATE,
     T_THIS,
+    T_THREAD_LOCAL,
     T_THROW,
     T_TRUE,
     T_TRY,
@@ -189,6 +190,7 @@ enum Kind {
     T_WHILE,
 
     T___ATTRIBUTE__,
+    T___THREAD,
     T___TYPEOF__,
 
     // obj c++ @ keywords