Fix conversion of hashmap values

Author: CanardMandarin

src/getRenderMapVisitor.ts

@@ -229,6 +229,19 @@ function getOptionTypeTransform(
     return returnTransform;
 }
 
+function getMapValueTransform(valueType: TypeNode): string {
+    switch (valueType.kind) {
+        case 'definedTypeLinkNode':
+            return '.into_proto()';
+        case 'publicKeyTypeNode':
+            return '.to_string()';
+        case 'numberTypeNode':
+            return getNumberTypeTransform(valueType);
+        default:
+            return '';
+    }
+}
+
 function getTransform(
     type: TypeNode,
     name: string,
@@ -259,6 +272,11 @@ function getTransform(
         case 'numberTypeNode':
             return `self.${typeName}${getNumberTypeTransform(type)}`;
 
+        case 'mapTypeNode': {
+            const valueTransform = getMapValueTransform(type.value);
+            return `self.${typeName}.into_iter().map(|(k, v)| (k, v${valueTransform})).collect()`;
+        }
+        
         default:
             return `self.${typeName}`;
     }