[provider] return null instead throw error

demo/project.xml

@@ -8,8 +8,8 @@
     <source path="src"/>
     <assets path="src" rename="image" include="*.png"/>
     
-    <haxelib name="lime" version="7.2.1"/>
+    <haxelib name="lime" version="7.3.0"/>
-    <haxelib name="openfl" version="8.8.0"/>
+    <haxelib name="openfl" version="8.9.0"/>
     <haxelib name="hxcpp" version="4.0.8"/>
     <haxelib name="promhx" version="1.1.0"/>
     <haxelib name="yaml" version="1.3.0"/>

src/main/haxework/macro/PositionYamlParser.hx

@@ -1,5 +1,7 @@
 package haxework.macro;
 
+import haxe.DynamicAccess;
+
 class PositionYamlParser {
 
     private var filename:String;
@@ -18,16 +20,16 @@ class PositionYamlParser {
         parseBlock(result);
     }
 
-    private function parseBlock(result:Dynamic):Void {
+    private function parseBlock(result:DynamicAccess<Dynamic>):Void {
-        for (field in Reflect.fields(result)) {
+        for (field in result.keys()) {
             var offset = content.indexOf(field, cache.get(field));
             cache.set(field, offset);
-            Reflect.setField(result, "$" + field, {
+            result.set("$" + field, {
                 min:offset,
                 max:offset + field.length,
                 file:filename,
             });
-            var value = Reflect.field(result, field);
+            var value = result.get(field);
             if (Std.is(value, Array)) {
                 for (item in cast(value, Array<Dynamic>)) {
                     parseBlock(item);
@@ -38,7 +40,7 @@ class PositionYamlParser {
         }
     }
 
-    public static function parse(filename:String, content:String, result:Dynamic):Void {
+    public static inline function parse(filename:String, content:String, result:Dynamic):Void {
         new PositionYamlParser(filename, content, result).parseAll();
     }
 }

src/main/haxework/provider/Provider.hx

@@ -33,7 +33,8 @@ class Provider {
             instances.set(key, instance);
             return instance;
         } else {
-            throw 'Factory for "${key}" not found';
+            return null;
+            //throw 'Factory for "${key}" not found';
         }
     }