Add "generic" option to the "optional" configuration for handling nullable types (#252)

This is an implementation for #251, it adds a new `"generic"` option for the `"optional"` configuration, and a companion type `"optional_generic_type"` which is a fully qualified type with a placeholder `%` for the generic parameter. Co-authored-by: Dylan R. Johnston <[email protected]> Co-authored-by: Ben Kraft <[email protected]>
2023-05-06 10:40:03 -07:00
parent 94b6a71403
commit c61d7acaa5
8 changed files with 279 additions and 12 deletions
@@ -262,6 +262,17 @@ func (g *generator) convertType(
 		// options work, recursing here isn't as connvenient.)
 		// Note this does []*T or [][]*T, not e.g. *[][]T.  See #16.
 		goTyp = &goPointerType{goTyp}
+	} else if !typ.NonNull && g.Config.Optional == "generic" {
+		var genericRef string
+		genericRef, err = g.ref(g.Config.OptionalGenericType)
+		if err != nil {
+			return nil, err
+		}
+
+		goTyp = &goGenericType{
+			GoGenericRef: genericRef,
+			Elem:         goTyp,
+		}
 	}
 	return goTyp, err
 }