fix build. update doc.

7 files changed, 28 insertions, 21 deletions

diff --git a/src/3rdParty/efsw/FileInfo.hpp b/src/3rdParty/efsw/FileInfo.hpp
index a8dd3d3..f1bcf4b 100755
--- a/src/3rdParty/efsw/FileInfo.hpp
+++ b/src/3rdParty/efsw/FileInfo.hpp
@@ -18,10 +18,12 @@ class FileInfo {
 
         FileInfo();
 
-        FileInfo( const std::string& filepath );
+        explicit FileInfo( const std::string& filepath );
 
         FileInfo( const std::string& filepath, bool linkInfo );
 
+        FileInfo( const FileInfo& ) = default;
+
         bool operator==( const FileInfo& Other ) const;
 
         bool operator!=( const FileInfo& Other ) const;
diff --git a/src/3rdParty/efsw/FileWatcherFSEvents.cpp b/src/3rdParty/efsw/FileWatcherFSEvents.cpp
index 970810d..bcfdbe6 100755
--- a/src/3rdParty/efsw/FileWatcherFSEvents.cpp
+++ b/src/3rdParty/efsw/FileWatcherFSEvents.cpp
@@ -41,7 +41,7 @@ bool FileWatcherFSEvents::isGranular() {
         return getOSXReleaseNumber() >= 11;
 }
 
-void FileWatcherFSEvents::FSEventCallback( ConstFSEventStreamRef streamRef, void* userData,
+void FileWatcherFSEvents::FSEventCallback( ConstFSEventStreamRef /*streamRef*/, void* userData,
                                                                                    size_t numEvents, void* eventPaths,
                                                                                    const FSEventStreamEventFlags eventFlags[],
                                                                                    const FSEventStreamEventId eventIds[] ) {
@@ -208,8 +208,8 @@ void FileWatcherFSEvents::run() {
         mRunLoopRef = NULL;
 }
 
-void FileWatcherFSEvents::handleAction( Watcher* watch, const std::string& filename,
-                                                                                unsigned long action, std::string oldFilename ) {
+void FileWatcherFSEvents::handleAction( Watcher* /*watch*/, const std::string& /*filename*/,
+                                                                                unsigned long /*action*/, std::string /*oldFilename*/ ) {
         /// Not used
 }
 
diff --git a/src/3rdParty/efsw/FileWatcherKqueue.cpp b/src/3rdParty/efsw/FileWatcherKqueue.cpp
index 9c86755..38ffad9 100755
--- a/src/3rdParty/efsw/FileWatcherKqueue.cpp
+++ b/src/3rdParty/efsw/FileWatcherKqueue.cpp
@@ -181,8 +181,8 @@ void FileWatcherKqueue::run() {
         } while ( mInitOK );
 }
 
-void FileWatcherKqueue::handleAction( Watcher* watch, const std::string& filename,
-                                                                          unsigned long action, std::string oldFilename ) {}
+void FileWatcherKqueue::handleAction( Watcher* /*watch*/, const std::string& /*filename*/,
+                                                                          unsigned long /*action*/, std::string /*oldFilename*/ ) {}
 
 std::list<std::string> FileWatcherKqueue::directories() {
         std::list<std::string> dirs;
diff --git a/src/3rdParty/efsw/String.cpp b/src/3rdParty/efsw/String.cpp
index 8c9a3cc..e3ba68f 100755
--- a/src/3rdParty/efsw/String.cpp
+++ b/src/3rdParty/efsw/String.cpp
@@ -382,7 +382,7 @@ String& String::assign( const String& str, size_t pos, size_t n ) {
         return *this;
 }
 
-String& String::assign( const char* s, size_t n ) {
+String& String::assign( const char* s, size_t /*n*/ ) {
         String tmp( s );
 
         mString.assign( tmp.mString );
@@ -416,7 +416,7 @@ String& String::append( const String& str, size_t pos, size_t n ) {
         return *this;
 }
 
-String& String::append( const char* s, size_t n ) {
+String& String::append( const char* s, size_t /*n*/ ) {
         String tmp( s );
 
         mString.append( tmp.mString );
@@ -510,7 +510,7 @@ std::size_t String::find( const String& str, std::size_t start ) const {
         return mString.find( str.mString, start );
 }
 
-std::size_t String::find( const char* s, std::size_t pos, std::size_t n ) const {
+std::size_t String::find( const char* s, std::size_t pos, std::size_t /*n*/ ) const {
         return find( String( s ), pos );
 }
 
@@ -526,7 +526,7 @@ std::size_t String::rfind( const String& str, std::size_t pos ) const {
         return mString.rfind( str.mString, pos );
 }
 
-std::size_t String::rfind( const char* s, std::size_t pos, std::size_t n ) const {
+std::size_t String::rfind( const char* s, std::size_t pos, std::size_t /*n*/ ) const {
         return rfind( String( s ), pos );
 }
 
@@ -575,7 +575,7 @@ std::size_t String::find_first_of( const String& str, std::size_t pos ) const {
         return mString.find_first_of( str.mString, pos );
 }
 
-std::size_t String::find_first_of( const char* s, std::size_t pos, std::size_t n ) const {
+std::size_t String::find_first_of( const char* s, std::size_t pos, std::size_t /*n*/ ) const {
         return find_first_of( String( s ), pos );
 }
 
@@ -591,7 +591,7 @@ std::size_t String::find_last_of( const String& str, std::size_t pos ) const {
         return mString.find_last_of( str.mString, pos );
 }
 
-std::size_t String::find_last_of( const char* s, std::size_t pos, std::size_t n ) const {
+std::size_t String::find_last_of( const char* s, std::size_t pos, std::size_t /*n*/ ) const {
         return find_last_of( String( s ), pos );
 }
 
@@ -607,7 +607,7 @@ std::size_t String::find_first_not_of( const String& str, std::size_t pos ) cons
         return mString.find_first_not_of( str.mString, pos );
 }
 
-std::size_t String::find_first_not_of( const char* s, std::size_t pos, std::size_t n ) const {
+std::size_t String::find_first_not_of( const char* s, std::size_t pos, std::size_t /*n*/ ) const {
         return find_first_not_of( String( s ), pos );
 }
 
@@ -623,7 +623,7 @@ std::size_t String::find_last_not_of( const String& str, std::size_t pos ) const
         return mString.find_last_not_of( str.mString, pos );
 }
 
-std::size_t String::find_last_not_of( const char* s, std::size_t pos, std::size_t n ) const {
+std::size_t String::find_last_not_of( const char* s, std::size_t pos, std::size_t /*n*/ ) const {
         return find_last_not_of( String( s ), pos );
 }
 
diff --git a/src/3rdParty/efsw/Utf.inl b/src/3rdParty/efsw/Utf.inl
index 7e3e9d6..5b6c2e0 100755
--- a/src/3rdParty/efsw/Utf.inl
+++ b/src/3rdParty/efsw/Utf.inl
@@ -375,17 +375,17 @@ template <typename In, typename Out> Out Utf<16>::ToUtf32( In begin, In end, Out
         return output;
 }
 
-template <typename In> In Utf<32>::Decode( In begin, In end, Uint32& output, Uint32 ) {
+template <typename In> In Utf<32>::Decode( In begin, In /*end*/, Uint32& output, Uint32 ) {
         output = *begin++;
         return begin;
 }
 
-template <typename Out> Out Utf<32>::Encode( Uint32 input, Out output, Uint32 replacement ) {
+template <typename Out> Out Utf<32>::Encode( Uint32 input, Out output, Uint32 /*replacement*/ ) {
         *output++ = input;
         return output;
 }
 
-template <typename In> In Utf<32>::Next( In begin, In end ) {
+template <typename In> In Utf<32>::Next( In begin, In /*end*/ ) {
         return ++begin;
 }
 
diff --git a/src/3rdParty/efsw/WatcherFSEvents.cpp b/src/3rdParty/efsw/WatcherFSEvents.cpp
index 6ccf527..b562d3c 100755
--- a/src/3rdParty/efsw/WatcherFSEvents.cpp
+++ b/src/3rdParty/efsw/WatcherFSEvents.cpp
@@ -11,7 +11,7 @@ WatcherFSEvents::WatcherFSEvents() :
         Watcher(), FWatcher( NULL ), FSStream( NULL ), WatcherGen( NULL ), initializedAsync( false ) {}
 
 WatcherFSEvents::WatcherFSEvents( WatchID id, std::string directory, FileWatchListener* listener,
-                                                                  bool recursive, WatcherFSEvents* parent ) :
+                                                                  bool recursive, WatcherFSEvents* /*parent*/ ) :
         Watcher( id, directory, listener, recursive ),
         FWatcher( NULL ),
         FSStream( NULL ),
diff --git a/src/yue.cpp b/src/yue.cpp
index 49fa3e1..4f5be8d 100644
--- a/src/yue.cpp
+++ b/src/yue.cpp
@@ -196,7 +196,7 @@ static std::string compileFile(const fs::path& srcFile, yue::YueConfig conf, con
 
 class UpdateListener : public efsw::FileWatchListener {
 public:
-        void handleFileAction(efsw::WatchID, const std::string& dir, const std::string& filename, efsw::Action action, std::string oldFilename) override {
+        void handleFileAction(efsw::WatchID, const std::string& dir, const std::string& filename, efsw::Action action, std::string) override {
                 switch(action) {
                         case efsw::Actions::Add:
                                 if (auto res = compileFile(fs::path(dir) / filename, config, workPath); !res.empty()) {
@@ -246,6 +246,7 @@ int main(int narg, const char** args) {
                 "   -b       Dump compile time (doesn't write output)\n"
                 "   -g       Dump global variables used in NAME LINE COLUMN\n"
                 "   -l       Write line numbers from source codes\n"
+                "   -w path  Watch changes and compile every file under directory\n"
                 "   -v       Print version\n"
 #ifndef YUE_COMPILER_ONLY
                 "   --       Read from standard in, print to standard out\n"
@@ -581,14 +582,18 @@ int main(int narg, const char** args) {
                 }
         }
         if (!watchFiles && files.empty()) {
-                std::cout << help;
+                std::cout << "no input files\n"sv;
                 return 0;
         }
         if (!resultFile.empty() && files.size() > 1) {
                 std::cout << "Error: -o can not be used with multiple input files\n"sv;
-                std::cout << help;
+                return 1;
         }
         if (watchFiles) {
+                if (!targetPath.empty()) {
+                        std::cout << "Error: -t can not be used with watching mode\n"sv;
+                        return 1;
+                }
                 auto fullWorkPath = fs::absolute(fs::path(workPath)).string();
                 std::list<std::future<std::string>> results;
                 for (const auto& file : files) {