LibCore: Introduce a C_OBJECT macro.

This macro goes at the top of every CObject-derived class like so:

class SomeClass : public CObject {
    C_OBJECT(SomeClass)
public:
    ...

At the moment, all it does is create an override for the class_name() getter
but in the future this will be used to automatically insert member functions
into these classes.

1 files changed, 2 insertions, 3 deletions

diff --git a/Libraries/LibGUI/GFilePicker.h b/Libraries/LibGUI/GFilePicker.h
index ccb68134b0..97f80bf103 100644
--- a/Libraries/LibGUI/GFilePicker.h
+++ b/Libraries/LibGUI/GFilePicker.h
@@ -7,6 +7,7 @@ class GDirectoryModel;
 class GLabel;
 
 class GFilePicker final : public GDialog {
+    C_OBJECT(GFilePicker)
 public:
     enum class Mode {
         Open,
@@ -22,8 +23,6 @@ public:
 
     FileSystemPath selected_file() const { return m_selected_file; }
 
-    virtual const char* class_name() const override { return "GFilePicker"; }
-
 private:
     void set_preview(const FileSystemPath&);
     void clear_preview();
@@ -48,4 +47,4 @@ private:
     GLabel* m_preview_name_label { nullptr };
     GLabel* m_preview_geometry_label { nullptr };
     Mode m_mode { Mode::Open };
-};
\ No newline at end of file
+};