Simplify AssetsMacro.embedData().

src/lime/_internal/macros/AssetsMacro.hx

@@ -91,24 +91,22 @@ class AssetsMacro
 		if (Context.defined("display")) return null;
 
 		var classType = Context.getLocalClass().get();
-		var metaData = classType.meta.get();
+		var metaData = classType.meta;
 		var position = Context.currentPos();
 		var fields = Context.getBuildFields();
 
-		for (meta in metaData)
-		{
-			if (meta.name == metaName)
-			{
-				if (meta.params.length > 0)
+		for (meta in metaData.extract(metaName))
 		{
+			if (meta.params.length == 0) continue;
+
 			switch (meta.params[0].expr)
 			{
+				case EConst(CString("" | null)):
+					return null;
+
 				case EConst(CString(filePath)):
 					var path = filePath;
 
-							if (path == "") return null;
-							if (path == null) return null;
-
 					if (!FileSystem.exists(filePath))
 					{
 						path = Context.resolvePath(filePath);
@@ -171,8 +169,6 @@ class AssetsMacro
 				default:
 			}
 		}
-			}
-		}
 
 		return null;
 	}