feat: Implement more sections functions

features/section/src/main/java/cc/carm/lib/configuration/source/section/MapSection.java

@@ -8,14 +8,6 @@ import java.util.*;
 
 public abstract class MapSection<R extends MapSection<R>> implements ConfigureSection {
 
-    public static RawMapSection of() {
-        return new RawMapSection(new LinkedHashMap<>(), null);
-    }
-
-    public static RawMapSection of(@NotNull Map<?, ?> data) {
-        return new RawMapSection(data, null);
-    }
-
     protected final @NotNull Map<String, Object> data;
     protected final @Nullable R parent;
 
@@ -57,6 +49,11 @@ public abstract class MapSection<R extends MapSection<R>> implements ConfigureSe
         return this.data;
     }
 
+    @Override
+    public boolean isEmpty() {
+        return data.isEmpty();
+    }
+
     @UnmodifiableView
     public @NotNull Map<String, Object> rawMap() {
         Map<String, Object> output = new LinkedHashMap<>();
@@ -118,12 +115,6 @@ public abstract class MapSection<R extends MapSection<R>> implements ConfigureSe
         return section == this ? data.get(path) : section.get(childPath(path));
     }
 
-    @Override
-    public @Nullable ConfigureSection getSection(@NotNull String path) {
-        Object val = get(path);
-        return (val instanceof ConfigureSection) ? (ConfigureSection) val : null;
-    }
-
     @SuppressWarnings("unchecked")
     private R getSectionFor(String path) {
         int index = path.indexOf(pathSeparator());

features/section/src/main/java/cc/carm/lib/configuration/source/section/RawMapSection.java

@@ -3,10 +3,27 @@ package cc.carm.lib.configuration.source.section;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.util.LinkedHashMap;
 import java.util.Map;
 
 public class RawMapSection extends MapSection<RawMapSection> {
-    
+
+    public static RawMapSection of() {
+        return of((RawMapSection) null);
+    }
+
+    public static RawMapSection of(@NotNull Map<?, ?> data) {
+        return of(data, null);
+    }
+
+    public static RawMapSection of(@Nullable RawMapSection parent) {
+        return of(new LinkedHashMap<>(), parent);
+    }
+
+    public static RawMapSection of(@NotNull Map<?, ?> data, @Nullable RawMapSection parent) {
+        return new RawMapSection(data, parent);
+    }
+
     protected RawMapSection(@NotNull Map<?, ?> raw, @Nullable RawMapSection parent) {
         super(parent);
         migrate(raw);