CppTools: Distinguish between ProjectFile::{unclassified,unsupported}

There was no way to determine whether ProjectFile::classify() was run or
not. Now, ProjectFile::classify() returns ProjectFile::Unsupported
instead of ProjectFile::Unclassified.

Change-Id: I660d0e42044bdefcac38058c6f4a3425983a6d93
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/cpptools/compileroptionsbuilder.cpp

@@ -187,6 +187,7 @@ static QStringList createLanguageOptionGcc(ProjectFile::Kind fileKind, bool objc
 
     switch (fileKind) {
     case ProjectFile::Unclassified:
+    case ProjectFile::Unsupported:
         break;
     case ProjectFile::CHeader:
         if (objcExt)

src/plugins/cpptools/cppprojectfile.cpp

@@ -53,7 +53,7 @@ ProjectFile::Kind ProjectFile::classify(const QString &filePath)
     Utils::MimeDatabase mdb;
     const Utils::MimeType mimeType = mdb.mimeTypeForFile(filePath);
     if (!mimeType.isValid())
-        return Unclassified;
+        return Unsupported;
     const QString mt = mimeType.name();
     if (mt == QLatin1String(CppTools::Constants::C_SOURCE_MIMETYPE))
         return CSource;
@@ -71,7 +71,7 @@ ProjectFile::Kind ProjectFile::classify(const QString &filePath)
         return CXXSource;
     if (mt == QLatin1String(CppTools::Constants::MOC_MIMETYPE))
         return CXXSource;
-    return Unclassified;
+    return Unsupported;
 }
 
 bool ProjectFile::isAmbiguousHeader(const QString &filePath)
@@ -86,7 +86,7 @@ bool ProjectFile::isHeader(ProjectFile::Kind kind)
     case ProjectFile::CXXHeader:
     case ProjectFile::ObjCHeader:
     case ProjectFile::ObjCXXHeader:
-    case ProjectFile::Unclassified: // no file extension, e.g. stl headers
+    case ProjectFile::Unsupported: // no file extension, e.g. stl headers
     case ProjectFile::AmbiguousHeader:
         return true;
     default:
@@ -124,6 +124,7 @@ const char *projectFileKindToText(ProjectFile::Kind kind)
 {
     switch (kind) {
         RETURN_TEXT_FOR_CASE(Unclassified);
+        RETURN_TEXT_FOR_CASE(Unsupported);
         RETURN_TEXT_FOR_CASE(AmbiguousHeader);
         RETURN_TEXT_FOR_CASE(CHeader);
         RETURN_TEXT_FOR_CASE(CSource);

src/plugins/cpptools/cppprojectfile.h

@@ -36,6 +36,7 @@ class CPPTOOLS_EXPORT ProjectFile
 public:
     enum Kind {
         Unclassified,
+        Unsupported,
         AmbiguousHeader,
         CHeader,
         CSource,

src/plugins/cpptools/cpptoolsplugin.cpp

@@ -404,7 +404,7 @@ QString correspondingHeaderOrSource(const QString &fileName, bool *wasHeader)
     if (debug)
         qDebug() << Q_FUNC_INFO << fileName <<  kind;
 
-    if (kind == ProjectFile::Unclassified)
+    if (kind == ProjectFile::Unsupported)
         return QString();
 
     const QString baseName = fi.completeBaseName();