Generate objects instead of enums

[scottcorgan]

With Typescript 5.8's erasableSyntaxOnly flag and with Node's type stripping support, it looks like they're pushing us away from from using TS only language features (enum, namespaces, etc) We heavily rely on the enums as generated objects for typesafety everywhere.

Would love to be able to just generate the object version of these enums in the generated output.

(I did try with templates, but was unsuccessful)

References

• TS 5.8 https://x.com/robpalmer2/status/1884715044585259127
• Node https://nodejs.org/en/blog/release/v22.6.0#experimental-typescript-support-via-strip-types

[scr2em]

Agreed!

[nathan-de-pachtere]

Tried with that template but can't make it works, the generate process don't use it at all ... others templates are used correctly but this one not.

<%
const { contract, utils, config } = it;
const { formatDescription, require, _ } = utils;
const { name, $content } = contract;
%>
<%_
  const enumName = name.toUpperCase();
  const enumValues = Object.entries($content);
_%>
<% if (config.generateUnionEnums) { %>
  export type <%~ name %> = <%~ _.map($content, ({ value }) => value).join(" | ") %>
<% } else { %>
  export const <%= enumName %>: { [key: string]: string } = {
    <%_ enumValues.forEach(([key, value]) => { _%>
      <%= key %>: '<%= value %>',
    <%_ }); _%>
  } as const;

// export type name = ObjectValues<typeof enumName>; // didn't make it to the step of generating actual type from that const but that the goal.
<% } %>

Also tried with

codeGenConstructs: (struct) => {
        return {
          ...struct,
          EnumField: ... //Can't figure out how to modify that as the doc seems not up to date
        };
      },

@scottcorgan did you find a way ?

[nathan-de-pachtere]

@scottcorgan https://github.com/OpenAPITools/openapi-generator
This tool make it by default ;)