Function parser

packages/core/src/frame/index.js:119–133

(key)

    }

    function parser(key) {
        if (arguments.length === 0) {
            return BaseParser;
        } else if (typeof key === 'string' && arguments.length === 1) {
            return parsers[toCase(key)];
        }
        const data = nameProp(...arguments);
        if (!data.id || !data.prop) return BaseParser;
        const name = toCase(data.id);
        const parser = data.prop;
        const base = parser.merge === true ? parsers[name] : undefined;
        parsers[name] = setPrototypeOf(parser, base || BaseParser);
        maker[name] = creatorFactory(name);
        parser.maker && extend(maker, parser.maker);
    }

    function component(id, component) {
        let name;