Add missing const qualifiers to member functions

src/wine-host/bridges/group.h

@@ -116,7 +116,7 @@ class GroupBridge {
      *   STDOUT and STDERR streams of the current process will be redirected to
      *   a pipe so they can be properly written to a log file.
      */
-    GroupBridge(boost::filesystem::path group_socket_path);
+    explicit GroupBridge(boost::filesystem::path group_socket_path);
 
     ~GroupBridge();
 

src/wine-host/bridges/vst2.cpp

@@ -144,7 +144,7 @@ Vst2Bridge::Vst2Bridge(boost::asio::io_context& main_context,
         Win32Thread(handle_process_replacing_proxy, this);
 }
 
-bool Vst2Bridge::should_skip_message_loop() {
+bool Vst2Bridge::should_skip_message_loop() const {
     return std::holds_alternative<EditorOpening>(editor);
 }
 
@@ -417,7 +417,7 @@ class HostCallbackDataConverter : DefaultDataConverter {
     EventPayload read(const int opcode,
                       const int index,
                       const intptr_t value,
-                      const void* data) {
+                      const void* data) const override {
         switch (opcode) {
             case audioMasterGetTime:
                 return WantsVstTimeInfo{};
@@ -445,12 +445,15 @@ class HostCallbackDataConverter : DefaultDataConverter {
         }
     }
 
-    std::optional<EventPayload> read_value(const int opcode,
-                                           const intptr_t value) {
+    std::optional<EventPayload> read_value(
+        const int opcode,
+        const intptr_t value) const override {
         return DefaultDataConverter::read_value(opcode, value);
     }
 
-    void write(const int opcode, void* data, const EventResult& response) {
+    void write(const int opcode,
+               void* data,
+               const EventResult& response) const override {
         switch (opcode) {
             case audioMasterGetTime:
                 // Write the returned `VstTimeInfo` struct into a field and
@@ -470,7 +473,8 @@ class HostCallbackDataConverter : DefaultDataConverter {
         }
     }
 
-    intptr_t return_value(const int opcode, const intptr_t original) {
+    intptr_t return_value(const int opcode,
+                          const intptr_t original) const override {
         switch (opcode) {
             case audioMasterGetTime: {
                 // Return a pointer to the `VstTimeInfo` object written in
@@ -490,7 +494,7 @@ class HostCallbackDataConverter : DefaultDataConverter {
 
     void write_value(const int opcode,
                      intptr_t value,
-                     const EventResult& response) {
+                     const EventResult& response) const override {
         return DefaultDataConverter::write_value(opcode, value, response);
     }
 

src/wine-host/bridges/vst2.h

@@ -87,7 +87,7 @@ class Vst2Bridge {
      * individually hosted plugins this check is done implicitely in
      * `Vst2Bridge::handle_win32_events()`.
      */
-    bool should_skip_message_loop();
+    bool should_skip_message_loop() const;
 
     /**
      * Handle events until the plugin exits. The actual events are posted to
@@ -151,7 +151,7 @@ class Vst2Bridge {
    private:
     /**
      * A wrapper around `plugin->dispatcher` that handles the opening and
-     * closing of GUIs.
+     * closing of GUIs. Used inside of `handle_dispatch()`.
      */
     intptr_t dispatch_wrapper(AEffect* plugin,
                               int opcode,

src/wine-host/editor.cpp

@@ -139,7 +139,7 @@ void Editor::send_idle_event() {
     plugin->dispatcher(plugin, effEditIdle, 0, 0, nullptr, 0);
 }
 
-void Editor::handle_win32_events() {
+void Editor::handle_win32_events() const {
     MSG msg;
 
     // The null value for the second argument is needed to handle interaction
@@ -162,7 +162,7 @@ void Editor::handle_win32_events() {
     }
 }
 
-void Editor::handle_x11_events() {
+void Editor::handle_x11_events() const {
     // TODO: Initiating drag-and-drop in Serum _sometimes_ causes the GUI to
     //       update while dragging while other times it does not. From all the
     //       plugins I've tested this only happens in Serum though.
@@ -201,7 +201,7 @@ void Editor::handle_x11_events() {
     }
 }
 
-void Editor::fix_local_coordinates() {
+void Editor::fix_local_coordinates() const {
     // We're purposely not using XEmbed. This has the consequence that wine
     // still thinks that any X and Y coordinates are relative to the x11 window
     // root instead of the parent window provided by the DAW, causing all sorts

src/wine-host/editor.h

@@ -107,12 +107,12 @@ class Editor {
      * Must be run from the same thread the GUI was created in because of Win32
      * limitations.
      */
-    void handle_win32_events();
+    void handle_win32_events() const;
 
     /**
      * Handle X11 events sent to the window our editor is embedded in.
      */
-    void handle_x11_events();
+    void handle_x11_events() const;
 
    private:
     /**
@@ -120,7 +120,7 @@ class Editor {
      * reparenting without using XEmbed. See the comment at the top of the
      * implementation on why this is needed.
      */
-    void fix_local_coordinates();
+    void fix_local_coordinates() const;
 
     /**
      * A pointer to the currently active window. Will be a null pointer if no