Macro spec_table 

macro_rules! spec_table {
    (
        $(
            $variant:ident => wow: $wow:expr, toml: $toml:literal, slug: $slug:literal,
                class: $class:ident, resource: $resource:ident, role: $role:ident
        ),+ $(,)?
    ) => { ... };
    (@is_role dps dps) => { ... };
    (@is_role tank tank) => { ... };
    (@is_role healer healer) => { ... };
    (@is_role $want:ident $have:ident) => { ... };
}