Yarr: Add Q_FALLTHROUGH to fallthroughs detected by GCC 7

Change-Id: I99dcca18155eeef1fdaec8d7693a6a415a68b55b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 5 insertions, 4 deletions

diff --git a/src/3rdparty/masm/yarr/YarrParser.h b/src/3rdparty/masm/yarr/YarrParser.h
index 8c5d71b5fe..13ffd3a1d6 100644
--- a/src/3rdparty/masm/yarr/YarrParser.h
+++ b/src/3rdparty/masm/yarr/YarrParser.h
@@ -118,7 +118,7 @@ private:
                     m_state = AfterCharacterClassHyphen;
                     return;
                 }
-                // Otherwise just fall through - cached character so treat this as Empty.
+                Q_FALLTHROUGH(); // cached character, so treat this as Empty.
 
             case Empty:
                 m_character = ch;
@@ -168,6 +168,7 @@ private:
             case CachedCharacter:
                 // Flush the currently cached character, then fall through.
                 m_delegate.atomCharacterClassAtom(m_character);
+                Q_FALLTHROUGH();
 
             case Empty:
             case AfterCharacterClass:
@@ -347,9 +348,8 @@ private:
                 delegate.atomPatternCharacter('\\');
                 break;
             }
-
-            // Fall-through to handle this as an octal escape.
         }
+            Q_FALLTHROUGH(); // Handle this as an octal escape.
 
         // Octal escape
         case '0':
@@ -656,7 +656,8 @@ private:
                 }
 
                 restoreState(state);
-            } // if we did not find a complete quantifer, fall through to the default case.
+            }
+                Q_FALLTHROUGH(); // if we did not find a complete quantifer, fall through to the default case.
 
             default:
                 m_delegate.atomPatternCharacter(consume());