object-hierarchy-access/built/setup.js

Get/Set value from/to JS object hierarchy properties

import { normalizeDescriptor } from 'utility/setup';
import { getPropName } from 'utility/common';
function generate(target, hierarchies, forceOverride) {
    var current = target;
    hierarchies.forEach(function (info) {
        var descriptor = normalizeDescriptor(info);
        var value = descriptor.value, type = descriptor.type, create = descriptor.create, override = descriptor.override, created = descriptor.created, skipped = descriptor.skipped, got = descriptor.got;
        var name = getPropName(current, descriptor);
        if (forceOverride || override || !current[name] || typeof current[name] !== 'object') {
            var obj = value ? value :
                type ? new type() :
                    create ? create.call(current, current, name) :
                        {};
            current[name] = obj;
            if (created) {
                created.call(current, current, name, obj);
            }
        }
        else {
            if (skipped) {
                skipped.call(current, current, name, current[name]);
            }
        }
        var parent = current;
        current = current[name];
        if (got) {
            got.call(parent, parent, name, current);
        }
    });
    return current;
}
function setupIfUndef(target, hierarchies) {
    return generate(target, hierarchies);
}
function setup(target, hierarchies) {
    var current = generate(target, hierarchies.slice(0, -1));
    var last = generate(current, hierarchies.slice(-1), true);
    return { current: current, last: last };
}
export { setupIfUndef, setup };