fix: incorrect typing

src/main.zig

@@ -11,12 +11,11 @@ pub fn log(
     /// The length of the buffer used for the formatted output.
     /// This is the maximum length of log messages.
     comptime buf_size: usize,
-) fn (
-    comptime std.log.Level,
-    comptime @TypeOf(.EnumLiteral),
-    comptime format: []const u8,
-    anytype,
-) void {
+) @TypeOf(LogStruct(c, module_name, buf_size).log) {
+    return LogStruct(c, module_name, buf_size).log;
+}
+
+fn LogStruct(c: anytype, comptime module_name: []const u8, comptime buf_size: usize) type {
     return struct {
         pub fn log(
             comptime level: std.log.Level,
@@ -44,7 +43,14 @@ pub fn log(
             var fields = [_]c.GLogField{
                 c.GLogField{
                     .key = "GLIB_DOMAIN",
-                    .value = module_name ++ "-" ++ @tagName(scope),
+                    .value = @ptrCast(
+                        *const anyopaque,
+                        // don't include scope name if not explicitly specified
+                        if (std.mem.eql(u8, @tagName(scope), "default"))
+                            module_name
+                        else
+                            module_name ++ "-" ++ @tagName(scope),
+                    ),
                     .length = -1,
                 },
                 c.GLogField{
@@ -60,10 +66,5 @@ pub fn log(
                 fields.len,
             );
         }
-    }.log;
+    };
 }
-
-export fn add(a: i32, b: i32) i32 {
-    return a + b;
-}
-