const std = @import("std");
const meta = std.meta;

/// Given a list of names, creates an enum type with those names as its fields.
/// The underlying tag type is set to the smallest available integer for the length of the list.
/// The underlying value for each field is set in the order they appear in the list. The enum is
/// considered exhaustive.
pub fn Enum(comptime enums: []const [:0]const u8) type {
    var fields: [enums.len]std.builtin.Type.EnumField = undefined;
    for (enums, 0..) |value, i| {
        fields[i] = .{ .name = value, .value = i };
    }
    return @Type(.{ .@"enum" = .{
        .tag_type = meta.Int(.unsigned, enums.len),
        .fields = &fields,
        .decls = &.{},
        .is_exhaustive = true,
    } });
}