Function merge_command

components/scheduler/src/command_manager.rs:437–479

merges src into dst

(dst: &mut TwilightCommand, src: TwilightCommand)

// merges src into dst
fn merge_command(dst: &mut TwilightCommand, src: TwilightCommand) {
    if dst.description == GROUP_DESC_PLACEHOLDER && src.description != GROUP_DESC_PLACEHOLDER {
        dst.description = src.description;
    }

    for opt in &dst.options {
        if !matches!(
            opt.kind,
            TwilightCommandOptionType::SubCommand | TwilightCommandOptionType::SubCommandGroup
        ) {
            // We can only merge sub commands
            return;
        }
    }

    for opt in src.options {
        if !matches!(
            opt.kind,
            TwilightCommandOptionType::SubCommand | TwilightCommandOptionType::SubCommandGroup
        ) {
            // We can only merge sub commands
            return;
        }

        let src_opt_name = &opt.name;
        if let Some(dst_opt) = dst.options.iter_mut().find(|v| &v.name == src_opt_name) {
            // we need to merge these options
            match (dst_opt.kind, opt.kind) {
                (
                    TwilightCommandOptionType::SubCommandGroup,
                    TwilightCommandOptionType::SubCommandGroup,
                ) => merge_subgroups(dst_opt, opt),
                _ => {
                    // we can only merge subgroups, how would we merge subcommands?
                    continue;
                }
            }
        } else {
            // no conflict
            dst.options.push(opt);
        }
    }
}

fn merge_subgroups(dst: &mut TwilightCommandOption, src: TwilightCommandOption) {
    if dst.description == GROUP_DESC_PLACEHOLDER && src.description != GROUP_DESC_PLACEHOLDER {