Story/3511/with meta set key

rosetta-integration-tests/src/test/java/com/regnosys/rosetta/generator/java/function/FunctionGeneratorMetaTest.java

@@ -185,8 +185,9 @@ result string (1..1)
         assertEquals(expected, result);
     }
 
+
+    //TODO: read key from an object
 
-    @Disabled //TODO: is this syntax needed? if so we need to find a way to get key as a feature from a Data type
     @Test
     void canSetExternalKeyOnFunctionObjectOutput() {
         var model = """
@@ -204,10 +205,24 @@ myReference string (1..1)
 
             output:
                 result Foo (1..1)
+            set result -> a: "someA"
             set result -> key: myReference
         """;
 
       var code = generatorTestHelper.generateCode(model);
+      var classes = generatorTestHelper.compileToClasses(code);
+      var myFunc = functionGeneratorHelper.createFunc(classes, "MyFunc");
+
+      var result = functionGeneratorHelper.invokeFunc(myFunc, FieldWithMeta.class, "someExternalReference");
+
+      var expected = generatorTestHelper.createInstanceUsingBuilder(classes, new RosettaJavaPackages.RootPackage("com.rosetta.test.model.metafields"), "FieldWithMetaFoo", Map.of(
+              "value", generatorTestHelper.createInstanceUsingBuilder(classes, new RosettaJavaPackages.RootPackage("com.rosetta.test.model"), "Foo", Map.of(
+          			"a", "someA"
+          		)),
+              "meta", MetaFields.builder().setExternalKey("someExternalReference")
+      ));
+
+      assertEquals(expected, result);
     }
 
     @Test

rosetta-lang/model/RosettaSimple.xcore

@@ -89,7 +89,7 @@ class Attribute extends RosettaTypedFeature, RosettaDefinable, Annotated, Refere
 }
 
 
-class Data extends RosettaType, RootElement, References {
+class Data extends RosettaType, RootElement, References, Annotated {
 	refers Data superType
 	contains RosettaClassSynonym[] synonyms
 	contains Attribute[] attributes

rosetta-lang/src/main/java/com/regnosys/rosetta/generator/java/function/FunctionGenerator.xtend

@@ -541,6 +541,7 @@ class FunctionGenerator {
 		return switch(seg.name) {
 			case "reference": "externalReference"
 			case "id": "externalKey"
+			case "key": "externalKey"
 			case "address": "reference"
 			default: seg.name
 		}

rosetta-lang/src/main/java/com/regnosys/rosetta/types/RosettaTypeProvider.xtend

@@ -156,7 +156,16 @@ class RosettaTypeProvider extends RosettaExpressionSwitch<RMetaAnnotatedType, Ma
 			}
 		}
 		if (symbol instanceof Annotated) {
-			return symbol.annotations.RMetaAttributes
+			var List<RMetaAttribute> typeMetaAttributes = #[]
+
+			if (symbol instanceof Attribute) {
+				val attributeType = symbol.typeCall.typeCallToRType
+				if (attributeType instanceof RDataType) {
+					typeMetaAttributes = attributeType.metaAttributes
+				}
+			} 
+
+			return (symbol.annotations.RMetaAttributes + typeMetaAttributes).toList
 		}
 		#[]
 	}