@woosh/meep-engine/src/core/json/abstractJSONDeserializer.js

Pure JavaScript game engine. Fully featured and production ready.

/**
 * @template T
 * @param {T} json
 * @param {Map<string, function>} deserializers
 */
export function abstractJSONDeserializer(json, deserializers) {
    if (json === null || typeof json !== "object") {
        // primitive type
        return json;
    }

    const typeName = json.type;

    if (typeof typeName !== "string") {
        throw new Error(`Expected json.typeName to be a string, instead was '${typeof typeName}'(=${typeName})`);
    }

    const deserializer = deserializers.get(typeName);

    if (deserializer === undefined) {
        throw new Error(`No deserializer found for type '${typeName}'`);
    }

    const payload = json.data;

    if (payload === undefined) {
        console.warn(`No serialized payload for type '${typeName}'`);
    }

    return deserializer(payload);
}