If map is not required and is not explicitly nullable, default to empty map

Author: walsha2

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.7.24
+
+* If map is not required and is not explicitly nullable, default to empty map
+
 ## 0.7.23
 
 * Improved support for nullable `Map` types

lib/src/generators/schema.dart

@@ -899,8 +899,13 @@ class SchemaGenerator extends BaseGenerator {
               map: (s) => s,
               orElse: () => p,
             );
+        // If map is not required and is not explicitly nullable, default to empty map
+        if (!required && p.nullable != true) {
+          p = p.copyWith(defaultValue: {}, nullable: false);
+        }
         var (c, nullable) = propHeader(p.defaultValue, p.description);
         var valueType = p.valueSchema?.toDartType(unions: _unions) ?? 'dynamic';
+
         c += "Map<String,$valueType> ${nullable ? '?' : ''} $name,\n\n";
         file.writeAsStringSync(c, mode: FileMode.append);
       },

lib/src/version.dart

@@ -1,6 +1,6 @@
 name: openapi_spec
 description: OpenAPI Specification generator using native Dart code, as well as an all-in-one parser of existing specifications.
-version: 0.7.23
+version: 0.7.24
 maintainer: Taza Technology LLC
 repository: https://github.com/tazatechnology/openapi_spec
 issue_tracker: https://github.com/tazatechnology/openapi_spec/issues