[solved] Avoid duplicated enum syntax in tagged union. Possible?

[rich ibex]

pub const Pragma = union(enum) {
  pure, Inline, Noreturn, readonly,

  const Id = enum {
    pure, Inline, Noreturn, readonly,

    const Map = std.StaticStringMap(Pragma.Id);
    pub const map = Map.initComptime(.{
      // Keywords
      .{ "inline",     Pragma.Id.Inline   },
      .{ "readonly",   Pragma.Id.readonly },
    });
  };
}
```Is there a way to avoid this Enum to be duplicated, and still have access to each tag as a struct as usual?

[low phoenix]

do you mean like this? you still need to define the fields twice though

const Id = enum {pure, Inline, Noreturn, readonly};

const Pragma = union(Id) { pure, Inline, Noreturn, readonly };

[rich ibex]

no, I mean accessing each item as a struct

thats essentially still duplicating the enum tags

you just got it out of the union, but yours is the exact same I wrote 🤔

can I use the tagged union itself for the values of the StaticStringMap, and still store only the tag part??
I think that would solve the tags being duplicate, but dont know if its legal syntax

[barren briar]

like this?

pub const Pragma = union(enum) {
  pure, Inline, Noreturn, readonly,

  const Id = std.meta.Tag(Pragma);
  const Map = std.StaticStringMap(Pragma.Id);
  pub const map = Map.initComptime(.{
    // Keywords
    .{ "inline",     Pragma.Id.Inline   },
    .{ "readonly",   Pragma.Id.readonly },
  });
}

[rich ibex]

epic! yeah, exactly @barren briar ! tytyty 🙏

oh wait, but that creates a slice, not an enum 🤔

is that going to work without an enum type?

[barren briar]

huh? std.meta.Tag returns the tag type of Pragma, which should be equivalent to enum { pure, Inline, Noreturn, readonly }

[rich ibex]

ohhhh. i used tags, not Tag

[barren briar]

oh ive never even used that one lol

but yea theyre very different

[rich ibex]

yeah, lol. Tag seems to work though. tyty!

[barren briar]

sweet