start working on meta loaders

common/src/main/java/com/dfsek/terra/api/config/meta/MetaContext.java

@@ -4,5 +4,5 @@ package com.dfsek.terra.api.config.meta;
  * Context from which to pull {@link MetaValue}s
  */
 public interface MetaContext {
-    <T> T load();
+    <T> T load(Object metaCandidate);
 }

common/src/main/java/com/dfsek/terra/config/loaders/meta/MetaListLoader.java

@@ -2,14 +2,25 @@ package com.dfsek.terra.config.loaders.meta;
 
 import com.dfsek.tectonic.exception.LoadException;
 import com.dfsek.tectonic.loading.ConfigLoader;
-import com.dfsek.tectonic.loading.TypeLoader;
+import com.dfsek.terra.api.config.meta.MetaContext;
 import com.dfsek.terra.api.config.meta.specific.MetaList;
+import com.dfsek.terra.api.util.GlueList;
 
 import java.lang.reflect.Type;
+import java.util.List;
+
+public class MetaListLoader extends MetaValueLoader<MetaList<Object>, List<Object>> {
+    protected MetaListLoader(MetaContext context) {
+        super(context);
+    }
 
-public class MetaListLoader implements TypeLoader<MetaList<?>> {
     @Override
-    public MetaList<?> load(Type t, Object c, ConfigLoader loader) throws LoadException {
+    public MetaList<Object> load(Type t, Object c, ConfigLoader loader) throws LoadException {
         return null;
     }
+
+    @Override
+    public List<Object> get() {
+        return new GlueList<>();
+    }
 }

common/src/main/java/com/dfsek/terra/config/loaders/meta/MetaMapLoader.java

@@ -2,14 +2,25 @@ package com.dfsek.terra.config.loaders.meta;
 
 import com.dfsek.tectonic.exception.LoadException;
 import com.dfsek.tectonic.loading.ConfigLoader;
-import com.dfsek.tectonic.loading.TypeLoader;
+import com.dfsek.terra.api.config.meta.MetaContext;
 import com.dfsek.terra.api.config.meta.specific.MetaMap;
 
 import java.lang.reflect.Type;
+import java.util.HashMap;
+import java.util.Map;
+
+public class MetaMapLoader extends MetaValueLoader<MetaMap<Object, Object>, Map<Object, Object>> {
+    public MetaMapLoader(MetaContext context) {
+        super(context);
+    }
 
-public class MetaMapLoader implements TypeLoader<MetaMap<?, ?>> {
     @Override
-    public MetaMap<?, ?> load(Type t, Object c, ConfigLoader loader) throws LoadException {
+    public MetaMap<Object, Object> load(Type t, Object c, ConfigLoader loader) throws LoadException {
         return null;
     }
+
+    @Override
+    public Map<Object, Object> get() {
+        return new HashMap<>();
+    }
 }

common/src/main/java/com/dfsek/terra/config/loaders/meta/MetaValueLoader.java

@@ -1,8 +1,15 @@
 package com.dfsek.terra.config.loaders.meta;
 
 import com.dfsek.tectonic.loading.TypeLoader;
+import com.dfsek.terra.api.config.meta.MetaContext;
 import com.dfsek.terra.api.config.meta.MetaValue;
 
-public abstract class MetaValueLoader<M extends MetaValue<T>, T> implements TypeLoader<T> {
+import java.util.function.Supplier;
 
+public abstract class MetaValueLoader<M extends MetaValue<T>, T> implements TypeLoader<M>, Supplier<T> {
+    private final MetaContext context;
+
+    protected MetaValueLoader(MetaContext context) {
+        this.context = context;
+    }
 }