chromium/chromeos/ash/services/cros_healthd/testing/bindings/templates/enum-generator.cc.j2

{%- set class_name = enum | get_name_for_kind(flatten_nested_kind=True)
                                                          ~ "DataGenerator" -%}

std::unique_ptr<{{class_name}}> {{class_name}}::Create(
    ::ash::cros_healthd::connectivity::Context*) {
  return std::unique_ptr<{{class_name}}>(new {{class_name}}());
}

{{enum | get_name_for_kind}} {{class_name}}::Generate() {
  if (enum_field_counter_ <= {{enum.fields|length}})
    ++enum_field_counter_;
  switch(enum_field_counter_ - 1) {
{%- for field in enum.fields %}
    case {{loop.index0}}:
{%-   if loop.last %}
{#-   For all the addtional call to |Generate()|, return the last enum value. #}
    default:
{%    endif %}
      return {{enum | get_name_for_kind}}::{{field.mojom_name}};
{%- endfor %}
  }
}

bool {{class_name}}::HasNext() {
  return enum_field_counter_ < {{enum.fields|length}};
}