tiger-lib 1.18.0

Library used by the tools ck3-tiger, vic3-tiger, and imperator-tiger. This library holds the bulk of the code for them. It can be built either for ck3-tiger with the feature ck3, or for vic3-tiger with the feature vic3, or for imperator-tiger with the feature imperator, but not both at the same time.
Documentation 
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use crate::block::Block;
use crate::db::{Db, DbKind};
use crate::everything::Everything;
use crate::game::GameFlags;
use crate::item::{Item, ItemLoader};
use crate::token::Token;
use crate::validator::Validator;

#[derive(Clone, Debug)]
pub struct HoldingType {}

inventory::submit! {
    ItemLoader::Normal(GameFlags::Ck3, Item::HoldingType, HoldingType::add)
}

impl HoldingType {
    pub fn add(db: &mut Db, key: Token, block: Block) {
        db.add(Item::HoldingType, key, block, Box::new(Self {}));
    }

    fn has_buildings(block: &Block) -> bool {
        if let Some(parameters) = block.get_field_block("parameters") {
            for value in parameters.iter_values() {
                if value.is("no_buildings") {
                    return false;
                }
            }
        }
        true
    }
}

impl DbKind for HoldingType {
    fn add_subitems(&self, _key: &Token, block: &Block, db: &mut Db) {
        if let Some(block) = block.get_field_block("parameters") {
            for token in block.iter_values() {
                db.add_flag(Item::HoldingParameter, token.clone());
            }
        }
    }

    fn validate(&self, key: &Token, block: &Block, data: &Everything) {
        if Self::has_buildings(block) {
            let modif = format!("{key}_build_speed");
            data.verify_exists_implied(Item::ModifierFormat, &modif, key);
            let modif = format!("{key}_build_gold_cost");
            data.verify_exists_implied(Item::ModifierFormat, &modif, key);
            let modif = format!("{key}_build_piety_cost");
            data.verify_exists_implied(Item::ModifierFormat, &modif, key);
            let modif = format!("{key}_build_prestige_cost");
            data.verify_exists_implied(Item::ModifierFormat, &modif, key);
            let modif = format!("{key}_holding_build_speed");
            data.verify_exists_implied(Item::ModifierFormat, &modif, key);
            let modif = format!("{key}_holding_build_gold_cost");
            data.verify_exists_implied(Item::ModifierFormat, &modif, key);
            let modif = format!("{key}_holding_build_piety_cost");
            data.verify_exists_implied(Item::ModifierFormat, &modif, key);
            let modif = format!("{key}_holding_build_prestige_cost");
            data.verify_exists_implied(Item::ModifierFormat, &modif, key);
        }

        let mut vd = Validator::new(block, data);
        vd.replaced_field("flag", "`parameters` block");
        vd.req_field("primary_building");
        vd.field_item("primary_building", Item::Building);
        vd.field_list_items("buildings", Item::Building);
        vd.field_bool("can_be_inherited");
        vd.field_bool("counts_toward_domain_limit_if_disabled");
        vd.field_list_items("required_heir_government_types", Item::GovernmentType);
        vd.field_list("parameters");
    }
}