Add a "-nn" option to moc

Demote "No relevant classes found" warnings to "notes".
"-nn" can be used to silence notes in order to reduce noise on embedded builds

Merge-request: 1101
Reviewed-by: Harald Fernengel <harald.fernengel@nokia.com>

3 files changed, 16 insertions, 4 deletions

diff --git a/src/tools/moc/main.cpp b/src/tools/moc/main.cpp
index 1ecb7e5..ecff105 100644
--- a/src/tools/moc/main.cpp
+++ b/src/tools/moc/main.cpp
@@ -111,6 +111,7 @@ void error(const char *msg = "Invalid argument")
             "  -i                 do not generate an #include statement\n"
             "  -p<path>           path prefix for included file\n"
             "  -f[<file>]         force #include, optional file name\n"
+            "  -nn                do not display notes\n"
             "  -nw                do not display warnings\n"
             "  @<file>            read additional options from file\n"
             "  -v                 display version of moc\n");
@@ -333,9 +334,12 @@ int runMoc(int _argc, char **_argv)
         case 'n': // don't display warnings
             if (ignoreConflictingOptions)
                 break;
-            if (opt != "nw")
+            if (opt == "nw")
+                moc.displayWarnings = moc.displayNotes = false;
+            else if (opt == "nn")
+                moc.displayNotes = false;
+            else
                 error();
-            moc.displayWarnings = false;
             break;
         case 'h': // help
             if (more && opt != "help")
@@ -425,7 +429,7 @@ int runMoc(int _argc, char **_argv)
         fprintf(out, "%s\n", composePreprocessorOutput(moc.symbols).constData());
     } else {
         if (moc.classList.isEmpty())
-            moc.warning("No relevant classes found. No output generated.");
+            moc.note("No relevant classes found. No output generated.");
         else
             moc.generate(out);
     }
diff --git a/src/tools/moc/parser.cpp b/src/tools/moc/parser.cpp
index 1fa1401..b6f0837 100644
--- a/src/tools/moc/parser.cpp
+++ b/src/tools/moc/parser.cpp
@@ -78,4 +78,10 @@ void Parser::warning(const char *msg) {
                 currentFilenames.top().constData(), qMax(0, index > 0 ? symbol().lineNum : 0), msg);
 }
 
+void Parser::note(const char *msg) {
+    if (displayNotes && msg)
+        fprintf(stderr, ErrorFormatString "Note: %s\n",
+                currentFilenames.top().constData(), qMax(0, index > 0 ? symbol().lineNum : 0), msg);
+}
+
 QT_END_NAMESPACE
diff --git a/src/tools/moc/parser.h b/src/tools/moc/parser.h
index 8356449..a874248 100644
--- a/src/tools/moc/parser.h
+++ b/src/tools/moc/parser.h
@@ -50,10 +50,11 @@ QT_BEGIN_NAMESPACE
 class Parser
 {
 public:
-    Parser():index(0), displayWarnings(true){}
+    Parser():index(0), displayWarnings(true), displayNotes(true) {}
     Symbols symbols;
     int index;
     bool displayWarnings;
+    bool displayNotes;
 
     QStack<QByteArray> currentFilenames;
 
@@ -73,6 +74,7 @@ public:
     void error(int rollback);
     void error(const char *msg = 0);
     void warning(const char * = 0);
+    void note(const char * = 0);
 
 };